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tegrakernel/kernel/nvidia/drivers/video/tegra/dc/sor.c

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/*
* sor.c: Functions implementing tegra dc sor interface.
*
* Copyright (c) 2011-2020, NVIDIA CORPORATION. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/nvhost.h>
#include <linux/kernel.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/tegra_prod.h>
#include <linux/uaccess.h>
#include <linux/version.h>
#include <linux/tegra_pm_domains.h>
#include <uapi/video/tegra_dc_ext.h>
#include "dc.h"
#include "sor.h"
#include "sor_regs.h"
#include "dc_priv.h"
#include "dp.h"
#include "dc_common.h"
static const struct tegra_dc_sor_link_speed link_speed_table[] = {
[TEGRA_DC_SOR_LINK_SPEED_G1_62] = {
.prod_prop = "prod_c_rbr",
.max_link_bw = 1620,
.link_rate = NV_DPCD_MAX_LINK_BANDWIDTH_VAL_1_62_GBPS,
},
[TEGRA_DC_SOR_LINK_SPEED_G2_7] = {
.prod_prop = "prod_c_hbr",
.max_link_bw = 2700,
.link_rate = NV_DPCD_MAX_LINK_BANDWIDTH_VAL_2_70_GBPS,
},
[TEGRA_DC_SOR_LINK_SPEED_G5_4] = {
.prod_prop = "prod_c_hbr2",
.max_link_bw = 5400,
.link_rate = NV_DPCD_MAX_LINK_BANDWIDTH_VAL_5_40_GBPS,
},
[TEGRA_DC_SOR_LINK_SPEED_G8_1] = {
.prod_prop = "prod_c_hbr3",
.max_link_bw = 8100,
.link_rate = NV_DPCD_MAX_LINK_BANDWIDTH_VAL_8_10_GBPS,
},
};
static const struct tegra_dc_dp_training_pattern training_pattern_table[] = {
[TEGRA_DC_DP_TRAINING_PATTERN_DISABLE] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = NV_DPCD_TRAINING_PATTERN_SET_TPS_NONE |
NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_F,
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_NOPATTERN,
},
[TEGRA_DC_DP_TRAINING_PATTERN_1] = {
.chan_coding = true,
.scrambling = false,
.dpcd_val = NV_DPCD_TRAINING_PATTERN_SET_TPS_TP1 |
NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_T,
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_TRAINING1,
},
[TEGRA_DC_DP_TRAINING_PATTERN_2] = {
.chan_coding = true,
.scrambling = false,
.dpcd_val = NV_DPCD_TRAINING_PATTERN_SET_TPS_TP2 |
NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_T,
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_TRAINING2,
},
[TEGRA_DC_DP_TRAINING_PATTERN_3] = {
.chan_coding = true,
.scrambling = false,
.dpcd_val = NV_DPCD_TRAINING_PATTERN_SET_TPS_TP3 |
NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_T,
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_TRAINING3,
},
[TEGRA_DC_DP_TRAINING_PATTERN_D102] = {
.chan_coding = true,
.scrambling = false,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_D102,
},
[TEGRA_DC_DP_TRAINING_PATTERN_SBLERRRATE] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_SBLERRRATE,
},
[TEGRA_DC_DP_TRAINING_PATTERN_PRBS7] = {
.chan_coding = false,
.scrambling = false,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_PRBS7,
},
[TEGRA_DC_DP_TRAINING_PATTERN_CSTM] = {
.chan_coding = false,
.scrambling = false,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_CSTM,
},
[TEGRA_DC_DP_TRAINING_PATTERN_HBR2_COMPLIANCE] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_HBR2_COMPLIANCE,
},
[TEGRA_DC_DP_TRAINING_PATTERN_CP2520_PAT1] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_CP2520_PAT1,
},
[TEGRA_DC_DP_TRAINING_PATTERN_CP2520_PAT3] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_CP2520_PAT3,
},
[TEGRA_DC_DP_TRAINING_PATTERN_4] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = NV_DPCD_TRAINING_PATTERN_SET_TPS_TP4 |
NV_DPCD_TRAINING_PATTERN_SET_SC_DISABLED_F,
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_TRAINING4,
},
/*
* On T194, the HW pattern generator sends the RD_RESET (running
* disparity reset) signal one clock cycle too early. This specifically
* affects TPS4 since TPS4 requires scrambling, so whatever symbol is
* sent during this early cycle will be random. As a result, the RD of
* the first symbol of TPS4 will be random as well.
*
* In order to WAR this issue, we will send a custom BS (blanking start)
* pattern when switching from TPS1 to TPS4 during equalization in order
* to control what the RD of the "early symbol" will be.
*/
[TEGRA_DC_DP_TRAINING_PATTERN_BS_CSTM] = {
.chan_coding = true,
.scrambling = true,
.dpcd_val = 0, /* unused */
.sor_reg_val = NV_SOR_DP_TPG_LANE0_PATTERN_CSTM,
},
};
static struct of_device_id tegra_sor_pd[] = {
{ .compatible = "nvidia,tegra210-sor-pd", },
{ .compatible = "nvidia,tegra186-disa-pd", },
{ .compatible = "nvidia,tegra194-disa-pd", },
{},
};
static struct tegra_dc_mode min_mode = {
.h_ref_to_sync = 0,
.v_ref_to_sync = 1,
.h_sync_width = 1,
.v_sync_width = 1,
.h_back_porch = 20,
.v_back_porch = 0,
.h_active = 16,
.v_active = 16,
.h_front_porch = 1,
.v_front_porch = 2,
};
unsigned long
tegra_dc_sor_poll_register(struct tegra_dc_sor_data *sor,
u32 reg, u32 mask, u32 exp_val,
u32 poll_interval_us, u32 timeout_ms)
{
unsigned long timeout_jf = jiffies + msecs_to_jiffies(timeout_ms);
u32 reg_val = 0;
if (tegra_platform_is_vdk())
return 0;
do {
reg_val = tegra_sor_readl(sor, reg);
if ((reg_val & mask) == exp_val)
return 0; /* success */
udelay(poll_interval_us);
} while (time_after(timeout_jf, jiffies));
dev_err(&sor->dc->ndev->dev,
"sor_poll_register 0x%x: timeout\n", reg);
return jiffies - timeout_jf + 1;
}
void tegra_sor_config_safe_clk(struct tegra_dc_sor_data *sor)
{
struct clk *clk;
int flag;
/*
* For nvdisplay, sor->sor_clk was previously being used as the SOR
* reference clk instead of the orclk. In order to be consistent with
* the previous naming scheme, I'm using sor->ref_clk here to avoid
* breaking existing drivers. This needs to be cleaned up later.
*/
clk = (tegra_dc_is_nvdisplay()) ? sor->ref_clk : sor->sor_clk;
flag = tegra_dc_is_clk_enabled(clk);
if (sor->clk_type == TEGRA_SOR_SAFE_CLK)
return;
/*
* HW bug 1425607
* Disable clocks to avoid glitch when switching
* between safe clock and macro pll clock
*/
if (flag)
tegra_sor_clk_disable(sor);
if (tegra_platform_is_silicon())
clk_set_parent(sor->sor_clk, sor->safe_clk);
if (flag)
tegra_sor_clk_enable(sor);
sor->clk_type = TEGRA_SOR_SAFE_CLK;
}
void tegra_sor_config_dp_clk_t21x(struct tegra_dc_sor_data *sor)
{
int flag = tegra_dc_is_clk_enabled(sor->sor_clk);
struct tegra_dc_dp_data *dp = tegra_dc_get_outdata(sor->dc);
const int64_t pll_dp_rate = 270000000; /* fixed pll_dp@270MHz */
if (sor->clk_type == TEGRA_SOR_MACRO_CLK)
return;
/*
* HW bug 1425607
* Disable clocks to avoid glitch when switching
* between safe clock and macro pll clock
*
* Select alternative -- DP -- DVFS table for SOR clock (if SOR clock
* has single DVFS table for all modes, nothing changes).
*/
if (flag)
tegra_sor_clk_disable(sor);
#ifdef CONFIG_TEGRA_CORE_DVFS
tegra_dvfs_use_alt_freqs_on_clk(sor->sor_clk, true);
#endif
#ifdef CONFIG_TEGRA_CLK_FRAMEWORK
if (tegra_platform_is_silicon())
tegra_clk_cfg_ex(sor->sor_clk, TEGRA_CLK_SOR_CLK_SEL, 1);
#else
if (sor->ctrl_num == 0)
/* For DP on sor0, set pll_dp as parent of sor clock */
clk_set_parent(sor->sor_clk, dp->parent_clk);
else
/* For DP on sor1, set sor1 pad output clk to be the parent */
clk_set_parent(sor->sor_clk, sor->pad_clk);
#endif
if (flag)
tegra_sor_clk_enable(sor);
sor->clk_type = TEGRA_SOR_MACRO_CLK;
/*
* Set the pad_clk so that clock rate and DVFS are upto date.
* Divide link clock by 10 to get sor clock.
*/
clk_set_rate(sor->pad_clk, (pll_dp_rate * dp->link_cfg.link_bw / 10));
}
int tegra_dc_sor_crc_get(struct tegra_dc_sor_data *sor, u32 *crc)
{
int ret = 0;
u32 val;
tegra_dc_io_start(sor->dc);
tegra_sor_clk_enable(sor);
val = tegra_sor_readl(sor, NV_SOR_CRCA);
val = (val & NV_SOR_CRCA_VALID_DEFAULT_MASK) >> NV_SOR_CRCA_VALID_SHIFT;
if (val != NV_SOR_CRCA_VALID_TRUE) {
ret = -EINVAL;
goto done;
}
*crc = tegra_sor_readl(sor, NV_SOR_CRCB);
tegra_sor_writel(sor, NV_SOR_CRCA, NV_SOR_CRCA_VALID_RST);
done:
tegra_sor_clk_disable(sor);
tegra_dc_io_end(sor->dc);
return ret;
}
u32 tegra_dc_sor_debugfs_get_crc(struct tegra_dc_sor_data *sor, int *timeout)
{
struct tegra_dc *dc = sor->dc;
u32 reg_val;
tegra_dc_io_start(sor->dc);
tegra_sor_clk_enable(sor);
reg_val = tegra_sor_readl(sor, NV_SOR_CRC_CNTRL);
reg_val &= NV_SOR_CRC_CNTRL_ARM_CRC_ENABLE_DEFAULT_MASK;
if (reg_val == NV_SOR_CRC_CNTRL_ARM_CRC_ENABLE_NO) {
pr_err("SOR CRC is DISABLED, aborting with CRC=0\n");
goto exit;
}
if (tegra_dc_sor_poll_register(sor, NV_SOR_CRCA,
NV_SOR_CRCA_VALID_DEFAULT_MASK,
NV_SOR_CRCA_VALID_TRUE,
100, TEGRA_SOR_TIMEOUT_MS)) {
dev_err(&sor->dc->ndev->dev,
"NV_SOR[%d]_CRCA_VALID_TRUE timeout\n", sor->ctrl_num);
if (timeout)
*timeout = 1;
goto exit;
}
mutex_lock(&dc->lock);
reg_val = tegra_sor_readl(sor, NV_SOR_CRCB);
mutex_unlock(&dc->lock);
exit:
tegra_sor_clk_disable(sor);
tegra_dc_io_end(sor->dc);
return reg_val;
}
void tegra_dc_sor_crc_en_dis(struct tegra_dc_sor_data *sor,
struct tegra_dc_ext_crc_sor_params params, bool en)
{
u32 reg;
tegra_dc_io_start(sor->dc);
tegra_sor_clk_enable(sor);
if (en) {
reg = NV_SOR_CRCA_VALID_RST << NV_SOR_CRCA_VALID_SHIFT;
tegra_sor_write_field(sor, NV_SOR_CRCA,
NV_SOR_CRCA_VALID_DEFAULT_MASK, reg);
reg = params.stage << NV_SOR_TEST_CRC_SHIFT;
tegra_sor_write_field(sor, NV_SOR_TEST,
NV_SOR_TEST_CRC_DEFAULT_MASK, reg);
reg = params.data << NV_SOR_STATE1_ASY_CRCMODE_SHIFT;
tegra_sor_write_field(sor, NV_SOR_STATE1,
NV_SOR_STATE1_ASY_CRCMODE_DEFAULT_MASK,
reg);
reg = NV_SOR_STATE0_UPDATE_UPDATE << NV_SOR_STATE0_UPDATE_SHIFT;
tegra_sor_write_field(sor, NV_SOR_STATE0,
NV_SOR_STATE0_UPDATE_DEFAULT_MASK, reg);
}
tegra_sor_readl(sor, NV_SOR_CRC_CNTRL);
reg = en << NV_SOR_CRC_CNTRL_ARM_CRC_ENABLE_SHIFT;
tegra_sor_write_field(sor, NV_SOR_CRC_CNTRL,
NV_SOR_CRC_CNTRL_ARM_CRC_ENABLE_DEFAULT_MASK,
reg);
tegra_sor_readl(sor, NV_SOR_CRC_CNTRL);
tegra_sor_clk_disable(sor);
tegra_dc_io_end(sor->dc);
}
void tegra_dc_sor_toggle_crc(struct tegra_dc_sor_data *sor, u32 val)
{
struct tegra_dc_ext_crc_sor_params params;
params.stage = TEGRA_DC_EXT_CRC_SOR_STAGE_PRE_SERIALIZE;
params.data = val & NV_SOR_STATE1_ASY_CRCMODE_DEFAULT_MASK;
params.data >>= NV_SOR_STATE1_ASY_CRCMODE_SHIFT;
tegra_dc_sor_crc_en_dis(sor, params, val & 0x1);
}
#ifdef CONFIG_DEBUG_FS
static int dbg_sor_show(struct seq_file *s, void *unused)
{
struct tegra_dc_sor_data *sor = s->private;
int hdmi_dump = 0;
#define DUMP_REG(a) seq_printf(s, "%-32s %03x %08x\n", \
#a, a, tegra_sor_readl(sor, a));
if (tegra_dc_is_t21x()) {
if (!tegra_powergate_is_powered(sor->powergate_id)) {
seq_puts(s, "SOR is powergated\n");
return 0;
}
}
tegra_dc_io_start(sor->dc);
tegra_sor_clk_enable(sor);
DUMP_REG(NV_SOR_SUPER_STATE0);
DUMP_REG(NV_SOR_SUPER_STATE1);
DUMP_REG(NV_SOR_STATE0);
DUMP_REG(NV_SOR_STATE1);
DUMP_REG(nv_sor_head_state0(0));
DUMP_REG(nv_sor_head_state0(1));
DUMP_REG(nv_sor_head_state1(0));
DUMP_REG(nv_sor_head_state1(1));
DUMP_REG(nv_sor_head_state2(0));
DUMP_REG(nv_sor_head_state2(1));
DUMP_REG(nv_sor_head_state3(0));
DUMP_REG(nv_sor_head_state3(1));
DUMP_REG(nv_sor_head_state4(0));
DUMP_REG(nv_sor_head_state4(1));
DUMP_REG(nv_sor_head_state5(0));
DUMP_REG(nv_sor_head_state5(1));
DUMP_REG(NV_SOR_CRC_CNTRL);
DUMP_REG(NV_SOR_CLK_CNTRL);
DUMP_REG(NV_SOR_CAP);
DUMP_REG(NV_SOR_PWR);
DUMP_REG(NV_SOR_TEST);
DUMP_REG(nv_sor_pll0());
DUMP_REG(nv_sor_pll1());
DUMP_REG(nv_sor_pll2());
DUMP_REG(nv_sor_pll3());
if (tegra_dc_is_nvdisplay())
DUMP_REG(nv_sor_pll4());
if (tegra_dc_is_t19x())
DUMP_REG(nv_sor_pll5());
DUMP_REG(NV_SOR_CSTM);
DUMP_REG(NV_SOR_LVDS);
DUMP_REG(NV_SOR_CRCA);
DUMP_REG(NV_SOR_CRCB);
DUMP_REG(NV_SOR_SEQ_CTL);
DUMP_REG(NV_SOR_LANE_SEQ_CTL);
DUMP_REG(NV_SOR_SEQ_INST(0));
DUMP_REG(NV_SOR_SEQ_INST(1));
DUMP_REG(NV_SOR_SEQ_INST(2));
DUMP_REG(NV_SOR_SEQ_INST(3));
DUMP_REG(NV_SOR_SEQ_INST(4));
DUMP_REG(NV_SOR_SEQ_INST(5));
DUMP_REG(NV_SOR_SEQ_INST(6));
DUMP_REG(NV_SOR_SEQ_INST(7));
DUMP_REG(NV_SOR_SEQ_INST(8));
DUMP_REG(NV_SOR_PWM_DIV);
DUMP_REG(NV_SOR_PWM_CTL);
DUMP_REG(NV_SOR_MSCHECK);
DUMP_REG(NV_SOR_XBAR_CTRL);
DUMP_REG(NV_SOR_XBAR_POL);
DUMP_REG(NV_SOR_DP_LINKCTL(0));
DUMP_REG(NV_SOR_DP_LINKCTL(1));
DUMP_REG(NV_SOR_DC(0));
DUMP_REG(NV_SOR_DC(1));
DUMP_REG(NV_SOR_LANE_DRIVE_CURRENT(0));
DUMP_REG(NV_SOR_PR(0));
DUMP_REG(NV_SOR_LANE4_PREEMPHASIS(0));
DUMP_REG(NV_SOR_POSTCURSOR(0));
DUMP_REG(NV_SOR_DP_CONFIG(0));
DUMP_REG(NV_SOR_DP_CONFIG(1));
DUMP_REG(NV_SOR_DP_MN(0));
DUMP_REG(NV_SOR_DP_MN(1));
DUMP_REG(nv_sor_dp_padctl(0));
DUMP_REG(nv_sor_dp_padctl(1));
if (tegra_dc_is_nvdisplay())
DUMP_REG(nv_sor_dp_padctl(2));
DUMP_REG(NV_SOR_DP_DEBUG(0));
DUMP_REG(NV_SOR_DP_DEBUG(1));
DUMP_REG(NV_SOR_DP_SPARE(0));
DUMP_REG(NV_SOR_DP_SPARE(1));
DUMP_REG(NV_SOR_DP_TPG);
DUMP_REG(NV_SOR_HDMI_CTRL);
DUMP_REG(NV_SOR_HDMI2_CTRL);
if (tegra_dc_is_nvdisplay()) {
DUMP_REG(nv_sor_dp_misc1_override());
DUMP_REG(nv_sor_dp_misc1_bit6());
if (tegra_platform_is_vdk())
DUMP_REG(NV_SOR_FPGA_HDMI_HEAD_SEL);
hdmi_dump = 1; /* SOR and SOR1 have same registers */
} else {
hdmi_dump = sor->ctrl_num; /*SOR and SOR1 have diff registers*/
}
/* TODO: we should check if the feature is present
* and not the ctrl_num
*/
if (hdmi_dump) {
DUMP_REG(NV_SOR_DP_AUDIO_CTRL);
DUMP_REG(NV_SOR_DP_AUDIO_HBLANK_SYMBOLS);
DUMP_REG(NV_SOR_DP_AUDIO_VBLANK_SYMBOLS);
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_HEADER);
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(0));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(1));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(2));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(3));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(4));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(5));
DUMP_REG(NV_SOR_DP_GENERIC_INFOFRAME_SUBPACK(6));
DUMP_REG(NV_SOR_DP_OUTPUT_CHANNEL_STATUS1);
DUMP_REG(NV_SOR_DP_OUTPUT_CHANNEL_STATUS2);
DUMP_REG(NV_SOR_HDMI_AUDIO_N);
DUMP_REG(NV_SOR_HDMI2_CTRL);
DUMP_REG(NV_SOR_AUDIO_CTRL);
DUMP_REG(NV_SOR_AUDIO_DEBUG);
DUMP_REG(NV_SOR_AUDIO_NVAL_0320);
DUMP_REG(NV_SOR_AUDIO_NVAL_0441);
DUMP_REG(NV_SOR_AUDIO_NVAL_0882);
DUMP_REG(NV_SOR_AUDIO_NVAL_1764);
DUMP_REG(NV_SOR_AUDIO_NVAL_0480);
DUMP_REG(NV_SOR_AUDIO_NVAL_0960);
DUMP_REG(NV_SOR_AUDIO_NVAL_1920);
DUMP_REG(NV_SOR_AUDIO_AVAL_0320);
DUMP_REG(NV_SOR_AUDIO_AVAL_0441);
DUMP_REG(NV_SOR_AUDIO_AVAL_0882);
DUMP_REG(NV_SOR_AUDIO_AVAL_1764);
DUMP_REG(NV_SOR_AUDIO_AVAL_0480);
DUMP_REG(NV_SOR_AUDIO_AVAL_0960);
DUMP_REG(NV_SOR_AUDIO_AVAL_1920);
DUMP_REG(NV_SOR_DP_AUDIO_CRC);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_0320);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_0441);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_0882);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_1764);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_0480);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_0960);
DUMP_REG(NV_SOR_DP_AUDIO_TIMESTAMP_1920);
DUMP_REG(NV_SOR_HDMI_GENERIC_CTRL);
DUMP_REG(NV_SOR_HDMI_GENERIC_HEADER);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK0_LOW);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK0_HIGH);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK1_LOW);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK1_HIGH);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK2_LOW);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK2_HIGH);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK3_LOW);
DUMP_REG(NV_SOR_HDMI_GENERIC_SUBPACK3_HIGH);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_CTRL);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_HEADER);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_SUBPACK0_LOW);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_SUBPACK0_HIGH);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_SUBPACK1_LOW_0);
DUMP_REG(NV_SOR_HDMI_AVI_INFOFRAME_SUBPACK1_HIGH_0);
}
tegra_sor_clk_disable(sor);
tegra_dc_io_end(sor->dc);
return 0;
}
static int dbg_sor_open(struct inode *inode, struct file *file)
{
return single_open(file, dbg_sor_show, inode->i_private);
}
static const struct file_operations dbg_fops = {
.open = dbg_sor_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int sor_crc_show(struct seq_file *s, void *unused)
{
struct tegra_dc_sor_data *sor = s->private;
u32 reg_val;
int timeout = 0;
reg_val = tegra_dc_sor_debugfs_get_crc(sor, &timeout);
if (!timeout)
seq_printf(s, "NV_SOR[%x]_CRCB = 0x%08x\n",
sor->ctrl_num, reg_val);
return 0;
}
static int sor_crc_open(struct inode *inode, struct file *file)
{
return single_open(file, sor_crc_show, inode->i_private);
}
static ssize_t sor_crc_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *off)
{
struct seq_file *s = file->private_data;
struct tegra_dc_sor_data *sor = s->private;
u32 data;
/* autodetect radix */
if (kstrtouint_from_user(user_buf, count, 0, &data) < 0)
return -EINVAL;
/* at this point:
* data[0:0] = 1|0: enable|disable CRC
* data[5:4] contains ASY_CRCMODE */
tegra_dc_sor_toggle_crc(sor, data);
return count;
}
static const struct file_operations crc_fops = {
.open = sor_crc_open,
.read = seq_read,
.write = sor_crc_write,
.llseek = seq_lseek,
.release = single_release,
};
static int dbg_hw_index_show(struct seq_file *m, void *unused)
{
struct tegra_dc_sor_data *sor = m->private;
if (WARN_ON(!sor))
return -EINVAL;
seq_printf(m, "Hardware index: %d\n", sor->ctrl_num);
return 0;
}
static int dbg_hw_index_open(struct inode *inode, struct file *file)
{
return single_open(file, dbg_hw_index_show, inode->i_private);
}
static const struct file_operations dbg_hw_index_ops = {
.open = dbg_hw_index_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void tegra_dc_sor_debug_create(struct tegra_dc_sor_data *sor,
const char *res_name)
{
struct dentry *retval;
char sor_path[16];
BUG_ON(!res_name);
snprintf(sor_path, sizeof(sor_path), "tegra_%s", res_name ? : "sor");
sor->debugdir = debugfs_create_dir(sor_path, NULL);
if (!sor->debugdir)
return;
retval = debugfs_create_file("regs", 0444, sor->debugdir, sor,
&dbg_fops);
if (!retval)
goto free_out;
retval = debugfs_create_file("crc", 0644, sor->debugdir,
sor, &crc_fops);
if (!retval)
goto free_out;
retval = debugfs_create_file("hw_index", 0444, sor->debugdir,
sor, &dbg_hw_index_ops);
if (!retval)
goto free_out;
return;
free_out:
debugfs_remove_recursive(sor->debugdir);
sor->debugdir = NULL;
return;
}
EXPORT_SYMBOL(tegra_dc_sor_debug_create);
static void tegra_dc_sor_debug_destroy(struct tegra_dc_sor_data *sor)
{
debugfs_remove_recursive(sor->debugdir);
sor->debugdir = NULL;
debugfs_remove(sor->dc->sor_link);
}
#else
static inline void tegra_dc_sor_debug_create(struct tegra_dc_sor_data *sor,
const char *res_name)
{ }
static inline void tegra_dc_sor_debug_destroy(struct tegra_dc_sor_data *sor)
{ }
#endif
static void tegra_sor_fpga_settings(struct tegra_dc *dc,
struct tegra_dc_sor_data *sor)
{
u32 mode_sel = NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_MODE_FIELD |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_OUT_EN_FIELD;
u32 head_sel = NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_MODE_HDMI |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_OUT_EN_ENABLE;
/* continue for system fpga and HDMI */
if ((!tegra_platform_is_vdk()) || (dc->out->type != TEGRA_DC_OUT_HDMI))
return;
if (dc->ndev->id == 0) {/* HEAD 0 */
mode_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD0_MODE_FIELD |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD0_OUT_EN_FIELD;
head_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD0_MODE_HDMI |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD0_OUT_EN_ENABLE;
} else if (dc->ndev->id == 1) {/* HEAD 1 */
mode_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_MODE_FIELD |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_OUT_EN_FIELD;
head_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_MODE_HDMI |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD1_OUT_EN_ENABLE;
} else if (dc->ndev->id == 2) {/* HEAD 2 */
mode_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD2_MODE_FIELD |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD2_OUT_EN_FIELD;
head_sel =
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD2_MODE_HDMI |
NV_SOR_FPGA_HDMI_HEAD_SEL_FPGA_HEAD2_OUT_EN_ENABLE;
}
tegra_sor_write_field(sor, NV_SOR_FPGA_HDMI_HEAD_SEL,
mode_sel, head_sel);
return;
}
struct tegra_dc_sor_data *tegra_dc_sor_init(struct tegra_dc *dc,
const struct tegra_dc_dp_link_config *cfg)
{
u32 temp;
int err, i;
char res_name[CHAR_BUF_SIZE_MAX] = {0};
char io_pinctrl_en_name[CHAR_BUF_SIZE_MAX] = {0};
char io_pinctrl_dis_name[CHAR_BUF_SIZE_MAX] = {0};
struct clk *sor_clk = NULL;
struct clk *safe_clk = NULL;
struct clk *pad_clk = NULL;
struct clk *ref_clk = NULL;
struct tegra_dc_sor_data *sor;
struct tegra_dc_sor_info *sor_cap;
struct device_node *sor_np;
if (!dc) {
pr_err("%s: dc pointer cannot be NULL\n", __func__);
return ERR_PTR(-EINVAL);
}
sor_np = tegra_dc_get_conn_np(dc);
if (!sor_np) {
dev_err(&dc->ndev->dev, "%s: error getting connector np\n",
__func__);
err = -ENODEV;
goto err_allocate;
}
sor = devm_kzalloc(&dc->ndev->dev, sizeof(*sor), GFP_KERNEL);
if (!sor) {
err = -ENOMEM;
goto err_allocate;
}
sor->link_speeds = link_speed_table;
sor->num_link_speeds = ARRAY_SIZE(link_speed_table);
sor->training_patterns = training_pattern_table;
sor->num_training_patterns = ARRAY_SIZE(training_pattern_table);
if (!of_property_read_u32(sor_np, "nvidia,sor-ctrlnum", &temp)) {
sor->ctrl_num = (unsigned long)temp;
} else {
dev_err(&dc->ndev->dev, "mandatory property %s for %s not found\n",
"nvidia,sor-ctrlnum",
of_node_full_name(sor_np));
err = -ENOENT;
goto err_free_sor;
}
snprintf(res_name, CHAR_BUF_SIZE_MAX, "sor%d", sor->ctrl_num);
sor->base = of_iomap(sor_np, 0);
if (!sor->base) {
dev_err(&dc->ndev->dev, "%s: %s registers can't be mapped\n",
__func__, res_name);
err = IS_ERR(sor->base) ? PTR_ERR(sor->base) : -ENOENT;
goto err_free_sor;
}
sor_clk = tegra_disp_of_clk_get_by_name(sor_np, res_name);
if (IS_ERR_OR_NULL(sor_clk)) {
dev_err(&dc->ndev->dev, "%s: can't get clock %s\n",
__func__, res_name);
err = IS_ERR(sor_clk) ? PTR_ERR(sor_clk) : -ENOENT;
goto err_iounmap_reg;
}
safe_clk = tegra_disp_of_clk_get_by_name(sor_np, "sor_safe");
if (IS_ERR_OR_NULL(safe_clk)) {
dev_err(&dc->ndev->dev, "sor: can't get safe clock\n");
err = IS_ERR(safe_clk) ? PTR_ERR(safe_clk) : -ENOENT;
goto err_safe;
}
if (!(tegra_dc_is_t21x() && sor->ctrl_num == 0)) {
snprintf(res_name, CHAR_BUF_SIZE_MAX, "sor%d_pad_clkout",
sor->ctrl_num);
pad_clk = tegra_disp_of_clk_get_by_name(sor_np, res_name);
if (IS_ERR_OR_NULL(pad_clk)) {
dev_err(&dc->ndev->dev, "sor: can't get %s\n",
res_name);
err = IS_ERR(pad_clk) ? PTR_ERR(pad_clk) : -ENOENT;
goto err_pad;
}
snprintf(res_name, CHAR_BUF_SIZE_MAX, "sor%d_ref",
sor->ctrl_num);
ref_clk = tegra_disp_of_clk_get_by_name(sor_np, res_name);
if (IS_ERR_OR_NULL(ref_clk)) {
dev_err(&dc->ndev->dev, "sor: can't get %s\n",
res_name);
err = IS_ERR(ref_clk) ? PTR_ERR(ref_clk) : -ENOENT;
goto err_ref;
}
/* change res_name back to sor%d */
snprintf(res_name, CHAR_BUF_SIZE_MAX, "sor%d", sor->ctrl_num);
}
err = tegra_get_sor_reset_ctrl(sor, sor_np, res_name);
if (err) {
dev_err(&dc->ndev->dev, "sor%d: can't get reset control\n",
sor->ctrl_num);
goto err_rst;
}
for (i = 0; i < sizeof(sor->xbar_ctrl)/sizeof(u32); i++)
sor->xbar_ctrl[i] = i;
if (tegra_dc_is_t21x() && (sor->ctrl_num == 1)) { /* todo: fix this */
snprintf(io_pinctrl_en_name, CHAR_BUF_SIZE_MAX,
"hdmi-dpd-enable");
snprintf(io_pinctrl_dis_name, CHAR_BUF_SIZE_MAX,
"hdmi-dpd-disable");
} else {
snprintf(io_pinctrl_en_name, CHAR_BUF_SIZE_MAX,
"hdmi-dp%d-dpd-enable", sor->ctrl_num);
snprintf(io_pinctrl_dis_name, CHAR_BUF_SIZE_MAX,
"hdmi-dp%d-dpd-disable", sor->ctrl_num);
}
sor->pinctrl_sor = devm_pinctrl_get(&dc->ndev->dev);
if (IS_ERR_OR_NULL(sor->pinctrl_sor)) {
dev_err(&dc->ndev->dev, "pinctrl get fail: %ld\n",
PTR_ERR(sor->pinctrl_sor));
sor->pinctrl_sor = NULL;
goto bypass_pads;
}
if (sor->pinctrl_sor) {
sor->dpd_enable = pinctrl_lookup_state(sor->pinctrl_sor,
io_pinctrl_en_name);
if (IS_ERR_OR_NULL(sor->dpd_enable)) {
dev_err(&dc->ndev->dev, "dpd enable lookup fail:%ld\n",
PTR_ERR(sor->dpd_enable));
sor->dpd_enable = NULL;
goto bypass_pads;
}
sor->dpd_disable = pinctrl_lookup_state(sor->pinctrl_sor,
io_pinctrl_dis_name);
if (IS_ERR_OR_NULL(sor->dpd_disable)) {
dev_err(&dc->ndev->dev, "dpd disable lookup fail:%ld\n",
PTR_ERR(sor->dpd_disable));
sor->dpd_disable = NULL;
}
}
bypass_pads:
if (of_property_read_u32_array(sor_np, "nvidia,xbar-ctrl",
sor->xbar_ctrl, sizeof(sor->xbar_ctrl)/sizeof(u32)))
dev_err(&dc->ndev->dev, "%s: error reading nvidia,xbar-ctrl\n",
__func__);
if (of_property_read_bool(sor_np, "nvidia,sor-audio-not-supported"))
sor->audio_support = false;
else
sor->audio_support = true;
sor_cap = tegra_dc_get_sor_cap();
if (IS_ERR_OR_NULL(sor_cap)) {
dev_info(&dc->ndev->dev, "sor: can't get sor cap.\n");
sor->hdcp_support = false;
} else {
sor->hdcp_support = sor_cap[sor->ctrl_num].hdcp_supported;
}
if (tegra_dc_is_nvdisplay()) {
sor->win_state_arr = devm_kzalloc(&dc->ndev->dev,
tegra_dc_get_numof_dispwindows() *
sizeof(*sor->win_state_arr),
GFP_KERNEL);
if (!sor->win_state_arr) {
err = -ENOMEM;
goto err_rst;
}
}
sor->dc = dc;
sor->np = sor_np;
sor->sor_clk = sor_clk;
sor->safe_clk = safe_clk;
sor->pad_clk = pad_clk;
sor->ref_clk = ref_clk;
sor->link_cfg = cfg;
sor->portnum = 0;
sor->powergate_id = tegra_pd_get_powergate_id(tegra_sor_pd);
sor->sor_state = SOR_DETACHED;
tegra_dc_sor_debug_create(sor, res_name);
if (tegra_dc_is_nvdisplay())
tegra_sor_fpga_settings(dc, sor);
init_rwsem(&sor->reset_lock);
return sor;
err_rst: __maybe_unused
clk_put(ref_clk);
err_ref: __maybe_unused
clk_put(pad_clk);
err_pad: __maybe_unused
clk_put(safe_clk);
err_safe: __maybe_unused
clk_put(sor_clk);
err_iounmap_reg:
iounmap(sor->base);
err_free_sor:
devm_kfree(&dc->ndev->dev, sor);
err_allocate:
return ERR_PTR(err);
}
int tegra_dc_sor_set_power_state(struct tegra_dc_sor_data *sor, int pu_pd)
{
u32 reg_val;
u32 orig_val;
orig_val = tegra_sor_readl(sor, NV_SOR_PWR);
reg_val = pu_pd ? NV_SOR_PWR_NORMAL_STATE_PU :
NV_SOR_PWR_NORMAL_STATE_PD; /* normal state only */
if (reg_val == orig_val)
return 0; /* No update needed */
reg_val |= NV_SOR_PWR_SETTING_NEW_TRIGGER;
tegra_sor_writel(sor, NV_SOR_PWR, reg_val);
/* Poll to confirm it is done */
if (tegra_dc_sor_poll_register(sor, NV_SOR_PWR,
NV_SOR_PWR_SETTING_NEW_DEFAULT_MASK,
NV_SOR_PWR_SETTING_NEW_DONE,
100, TEGRA_SOR_TIMEOUT_MS)) {
dev_err(&sor->dc->ndev->dev,
"dc timeout waiting for SOR_PWR = NEW_DONE\n");
return -EFAULT;
}
return 0;
}
void tegra_dc_sor_destroy(struct tegra_dc_sor_data *sor)
{
struct device *dev;
if (!sor) {
pr_err("%s: invalid input\n", __func__);
return;
}
dev = &sor->dc->ndev->dev;
clk_put(sor->ref_clk);
clk_put(sor->pad_clk);
clk_put(sor->safe_clk);
clk_put(sor->sor_clk);
tegra_dc_sor_debug_destroy(sor);
iounmap(sor->base);
devm_pinctrl_put(sor->pinctrl_sor);
sor->dpd_enable = NULL;
sor->dpd_disable = NULL;
if (tegra_dc_is_nvdisplay())
devm_kfree(dev, sor->win_state_arr);
devm_kfree(dev, sor);
}
void tegra_sor_tpg(struct tegra_dc_sor_data *sor, u32 tp, u32 total_lanes)
{
bool chan_coding = sor->training_patterns[tp].chan_coding;
bool scrambling = sor->training_patterns[tp].scrambling;
u32 tps_sor_val = sor->training_patterns[tp].sor_reg_val;
u32 val = 0; /* The value written to the reg gets constructed here */
unsigned int lane;
for (lane = 0; lane < total_lanes; lane++) {
u32 tp_shift = NV_SOR_DP_TPG_LANE1_PATTERN_SHIFT * lane;
val |= tps_sor_val << tp_shift;
val |= chan_coding << (tp_shift +
NV_SOR_DP_TPG_LANE0_CHANNELCODING_SHIFT);
val |= scrambling << (tp_shift +
NV_SOR_DP_TPG_LANE0_SCRAMBLEREN_SHIFT);
}
tegra_sor_writel(sor, NV_SOR_DP_TPG, val);
}
void tegra_sor_port_enable(struct tegra_dc_sor_data *sor, bool enb)
{
tegra_sor_write_field(sor, NV_SOR_DP_LINKCTL(sor->portnum),
NV_SOR_DP_LINKCTL_ENABLE_YES,
(enb ? NV_SOR_DP_LINKCTL_ENABLE_YES :
NV_SOR_DP_LINKCTL_ENABLE_NO));
}
static int tegra_dc_sor_enable_lane_sequencer(struct tegra_dc_sor_data *sor,
bool pu)
{
u32 reg_val;
/* SOR lane sequencer */
reg_val = NV_SOR_LANE_SEQ_CTL_SETTING_NEW_TRIGGER |
NV_SOR_LANE_SEQ_CTL_SEQUENCE_DOWN |
(15 << NV_SOR_LANE_SEQ_CTL_DELAY_SHIFT);
reg_val |= pu ? NV_SOR_LANE_SEQ_CTL_NEW_POWER_STATE_PU :
NV_SOR_LANE_SEQ_CTL_NEW_POWER_STATE_PD;
if (tegra_dc_sor_poll_register(sor, NV_SOR_LANE_SEQ_CTL,
NV_SOR_LANE_SEQ_CTL_SEQ_STATE_BUSY,
NV_SOR_LANE_SEQ_CTL_SEQ_STATE_IDLE,
100, TEGRA_SOR_SEQ_BUSY_TIMEOUT_MS)) {
dev_dbg(&sor->dc->ndev->dev,
"dp: timeout, sor lane sequencer busy\n");
return -EFAULT;
}
tegra_sor_writel(sor, NV_SOR_LANE_SEQ_CTL, reg_val);
if (tegra_dc_sor_poll_register(sor, NV_SOR_LANE_SEQ_CTL,
NV_SOR_LANE_SEQ_CTL_SETTING_MASK,
NV_SOR_LANE_SEQ_CTL_SETTING_NEW_DONE,
100, TEGRA_SOR_TIMEOUT_MS)) {
dev_dbg(&sor->dc->ndev->dev,
"dp: timeout, SOR lane sequencer power up/down\n");
return -EFAULT;
}
return 0;
}
static u32 tegra_sor_get_pd_tx_bitmap(struct tegra_dc_sor_data *sor,
u32 lane_count)
{
int i;
u32 val = 0;
for (i = 0; i < lane_count; i++) {
u32 index = sor->xbar_ctrl[i];
switch (index) {
case 0:
val |= NV_SOR_DP_PADCTL_PD_TXD_0_NO;
break;
case 1:
val |= NV_SOR_DP_PADCTL_PD_TXD_1_NO;
break;
case 2:
val |= NV_SOR_DP_PADCTL_PD_TXD_2_NO;
break;
case 3:
val |= NV_SOR_DP_PADCTL_PD_TXD_3_NO;
break;
default:
dev_err(&sor->dc->ndev->dev,
"dp: incorrect lane cnt\n");
}
}
return val;
}
int tegra_sor_power_lanes(struct tegra_dc_sor_data *sor,
u32 lane_count, bool pu)
{
u32 val = 0;
if (pu)
val = tegra_sor_get_pd_tx_bitmap(sor, lane_count);
tegra_sor_write_field(sor, nv_sor_dp_padctl(sor->portnum),
NV_SOR_DP_PADCTL_PD_TXD_MASK, val);
if (pu)
tegra_dc_sor_set_lane_count(sor, lane_count);
return tegra_dc_sor_enable_lane_sequencer(sor, pu);
}
/* power on/off pad calibration logic */
void tegra_sor_pad_cal_power(struct tegra_dc_sor_data *sor,
bool power_up)
{
u32 val = power_up ? NV_SOR_DP_PADCTL_PAD_CAL_PD_POWERUP :
NV_SOR_DP_PADCTL_PAD_CAL_PD_POWERDOWN;
/* !!TODO: need to enable panel power through GPIO operations */
/* Check bug 790854 for HW progress */
tegra_sor_write_field(sor, nv_sor_dp_padctl(sor->portnum),
NV_SOR_DP_PADCTL_PAD_CAL_PD_POWERDOWN, val);
}
void tegra_dc_sor_termination_cal(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll1_reg = nv_sor_pll1();
u32 termadj;
u32 cur_try;
u32 reg_val;
termadj = cur_try = 0x8;
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERMADJ_DEFAULT_MASK,
termadj << NV_SOR_PLL1_TMDS_TERMADJ_SHIFT);
while (cur_try) {
/* binary search the right value */
usleep_range(100, 200);
reg_val = tegra_sor_readl(sor, nv_sor_pll1_reg);
if (reg_val & NV_SOR_PLL1_TERM_COMPOUT_HIGH)
termadj -= cur_try;
cur_try >>= 1;
termadj += cur_try;
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERMADJ_DEFAULT_MASK,
termadj << NV_SOR_PLL1_TMDS_TERMADJ_SHIFT);
}
}
static void tegra_dc_sor_config_pwm(struct tegra_dc_sor_data *sor, u32 pwm_div,
u32 pwm_dutycycle)
{
tegra_sor_writel(sor, NV_SOR_PWM_DIV, pwm_div);
tegra_sor_writel(sor, NV_SOR_PWM_CTL,
(pwm_dutycycle & NV_SOR_PWM_CTL_DUTY_CYCLE_MASK) |
NV_SOR_PWM_CTL_SETTING_NEW_TRIGGER);
if (tegra_dc_sor_poll_register(sor, NV_SOR_PWM_CTL,
NV_SOR_PWM_CTL_SETTING_NEW_SHIFT,
NV_SOR_PWM_CTL_SETTING_NEW_DONE,
100, TEGRA_SOR_TIMEOUT_MS)) {
dev_dbg(&sor->dc->ndev->dev,
"dp: timeout while waiting for SOR PWM setting\n");
}
}
static inline void tegra_dc_sor_super_update(struct tegra_dc_sor_data *sor)
{
tegra_sor_writel(sor, NV_SOR_SUPER_STATE0, 0);
tegra_sor_writel(sor, NV_SOR_SUPER_STATE0, 1);
tegra_sor_writel(sor, NV_SOR_SUPER_STATE0, 0);
}
static inline void tegra_dc_sor_update(struct tegra_dc_sor_data *sor)
{
tegra_sor_writel(sor, NV_SOR_STATE0, 0);
tegra_sor_writel(sor, NV_SOR_STATE0, 1);
tegra_sor_writel(sor, NV_SOR_STATE0, 0);
}
static void tegra_dc_sor_io_set_dpd(struct tegra_dc_sor_data *sor, bool up)
{
int ret = 0;
if (tegra_platform_is_vdk())
return;
if (!sor->pinctrl_sor)
return;
if (up) {
if (sor->dpd_disable)
ret = pinctrl_select_state(sor->pinctrl_sor,
sor->dpd_disable);
} else {
if (sor->dpd_enable)
ret = pinctrl_select_state(sor->pinctrl_sor,
sor->dpd_enable);
}
if (ret < 0)
dev_err(&sor->dc->ndev->dev, "io pad power %s fail:%d\n",
up ? "disable" : "enable", ret);
}
/* hdmi uses sor sequencer for pad power up */
void tegra_sor_hdmi_pad_power_up(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll0_reg = nv_sor_pll0();
u32 nv_sor_pll1_reg = nv_sor_pll1();
u32 nv_sor_pll2_reg = nv_sor_pll2();
int ret = 0;
/* seamless */
if (sor->dc->initialized)
return;
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX9_LVDSEN_OVERRIDE,
NV_SOR_PLL2_AUX9_LVDSEN_OVERRIDE);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX0_MASK,
NV_SOR_PLL2_AUX0_SEQ_PLL_PULLDOWN_OVERRIDE);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_CLKGEN_MODE_MASK,
NV_SOR_PLL2_CLKGEN_MODE_DP_TMDS);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX2_MASK,
NV_SOR_PLL2_AUX2_OVERRIDE_POWERDOWN);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX1_SEQ_MASK,
NV_SOR_PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_ENABLE);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK,
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE);
tegra_sor_write_field(sor, nv_sor_pll0_reg, NV_SOR_PLL0_PWR_MASK,
NV_SOR_PLL0_PWR_OFF);
tegra_sor_write_field(sor, nv_sor_pll0_reg, NV_SOR_PLL0_VCOPD_MASK,
NV_SOR_PLL0_VCOPD_ASSERT);
tegra_sor_pad_cal_power(sor, false);
usleep_range(20, 70);
if (sor->dpd_disable) {
ret = pinctrl_select_state(sor->pinctrl_sor, sor->dpd_disable);
if (ret < 0)
dev_err(&sor->dc->ndev->dev,
"io pad power-up fail:%d\n", ret);
}
usleep_range(20, 70);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE);
usleep_range(50, 100);
tegra_sor_write_field(sor, nv_sor_pll0_reg, NV_SOR_PLL0_PWR_MASK,
NV_SOR_PLL0_PWR_ON);
tegra_sor_write_field(sor, nv_sor_pll0_reg, NV_SOR_PLL0_VCOPD_MASK,
NV_SOR_PLL0_VCOPD_RESCIND);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK,
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE);
usleep_range(250, 300);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_DISABLE);
/*
* TERM_ENABLE is disabled at the end of rterm calibration. Re-enable it
* here.
*/
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERM_ENABLE,
NV_SOR_PLL1_TMDS_TERM_ENABLE);
usleep_range(10, 20);
}
void tegra_sor_hdmi_pad_power_down(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll0_reg = nv_sor_pll0();
u32 nv_sor_pll2_reg = nv_sor_pll2();
int ret = 0;
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_ENABLE);
usleep_range(25, 30);
tegra_sor_write_field(sor, nv_sor_pll0_reg, NV_SOR_PLL0_PWR_MASK |
NV_SOR_PLL0_VCOPD_MASK, NV_SOR_PLL0_PWR_OFF |
NV_SOR_PLL0_VCOPD_ASSERT);
tegra_sor_write_field(sor, nv_sor_pll2_reg, NV_SOR_PLL2_AUX1_SEQ_MASK |
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK,
NV_SOR_PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE |
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE);
usleep_range(25, 30);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE);
tegra_sor_pad_cal_power(sor, false);
if (sor->dpd_enable) {
ret = pinctrl_select_state(sor->pinctrl_sor, sor->dpd_enable);
if (ret < 0)
dev_err(&sor->dc->ndev->dev,
"io pad power-down fail:%d\n", ret);
}
usleep_range(20, 70);
}
/* The SOR power sequencer does not work for t124 so SW has to
go through the power sequence manually */
/* Power up steps from spec: */
/* STEP PDPORT PDPLL PDBG PLLVCOD PLLCAPD E_DPD PDCAL */
/* 1 1 1 1 1 1 1 1 */
/* 2 1 1 1 1 1 0 1 */
/* 3 1 1 0 1 1 0 1 */
/* 4 1 0 0 0 0 0 1 */
/* 5 0 0 0 0 0 0 1 */
static void tegra_sor_dp_pad_power_up(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll0_reg = nv_sor_pll0();
u32 nv_sor_pll1_reg = nv_sor_pll1();
u32 nv_sor_pll2_reg = nv_sor_pll2();
if (sor->power_is_up)
return;
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX2_MASK,
NV_SOR_PLL2_AUX2_OVERRIDE_POWERDOWN);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX1_SEQ_MASK,
NV_SOR_PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE);
/* step 1 */
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK | /* PDPORT */
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK | /* PDBG */
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, /* PLLCAPD */
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_ENABLE |
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE |
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE);
tegra_sor_write_field(sor, nv_sor_pll0_reg,
NV_SOR_PLL0_PWR_MASK | /* PDPLL */
NV_SOR_PLL0_VCOPD_MASK, /* PLLVCOPD */
NV_SOR_PLL0_PWR_OFF |
NV_SOR_PLL0_VCOPD_ASSERT);
tegra_sor_pad_cal_power(sor, false); /* PDCAL */
/* step 2 */
tegra_dc_sor_io_set_dpd(sor, true);
usleep_range(5, 100); /* sleep > 5us */
/* step 3 */
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE);
usleep_range(100, 150);
/* step 4 */
tegra_sor_write_field(sor, nv_sor_pll0_reg,
NV_SOR_PLL0_PWR_MASK | /* PDPLL */
NV_SOR_PLL0_VCOPD_MASK, /* PLLVCOPD */
NV_SOR_PLL0_PWR_ON | NV_SOR_PLL0_VCOPD_RESCIND);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, /* PLLCAPD */
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_DISABLE);
usleep_range(200, 1000);
/* step 5 */
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK, /* PDPORT */
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_DISABLE);
/*
* TERM_ENABLE is disabled at the end of rterm calibration. Re-enable it
* here.
*/
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERM_ENABLE,
NV_SOR_PLL1_TMDS_TERM_ENABLE);
usleep_range(10, 20);
sor->power_is_up = true;
}
/* Powerdown steps from the spec: */
/* STEP PDPORT PDPLL PDBG PLLVCOD PLLCAPD E_DPD PDCAL */
/* 1 0 0 0 0 0 0 1 */
/* 2 1 0 0 0 0 0 1 */
/* 3 1 1 0 1 1 0 1 */
/* 4 1 1 1 1 1 0 1 */
/* 5 1 1 1 1 1 1 1 */
static void tegra_sor_dp_pad_power_down(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll0_reg = nv_sor_pll0();
u32 nv_sor_pll2_reg = nv_sor_pll2();
if (!sor->power_is_up)
return;
/* step 1 -- not necessary */
/* step 2 */
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_MASK, /* PDPORT */
NV_SOR_PLL2_AUX7_PORT_POWERDOWN_ENABLE);
usleep_range(25, 30);
/* step 3 */
tegra_sor_write_field(sor, nv_sor_pll0_reg,
NV_SOR_PLL0_PWR_MASK | /* PDPLL */
NV_SOR_PLL0_VCOPD_MASK, /* PLLVCOPD */
NV_SOR_PLL0_PWR_OFF | NV_SOR_PLL0_VCOPD_ASSERT);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX1_SEQ_MASK |
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_MASK, /* PLLCAPD */
NV_SOR_PLL2_AUX1_SEQ_PLLCAPPD_OVERRIDE |
NV_SOR_PLL2_AUX8_SEQ_PLLCAPPD_ENFORCE_ENABLE);
usleep_range(25, 30);
/* step 4 */
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE);
tegra_sor_pad_cal_power(sor, false); /* PDCAL */
usleep_range(70, 120);
/* step 5 */
tegra_dc_sor_io_set_dpd(sor, false);
usleep_range(70, 120);
sor->power_is_up = false;
}
static u32 tegra_sor_hdmi_get_pixel_depth(struct tegra_dc *dc)
{
int yuv_flag = dc->mode.vmode & FB_VMODE_YUV_MASK;
int yuv_bypass_mode = dc->mode.vmode & FB_VMODE_BYPASS;
if (!yuv_flag)
return NV_SOR_STATE1_ASY_PIXELDEPTH_DEFAULTVAL;
if (!yuv_bypass_mode) {
if (tegra_dc_is_yuv420_8bpc(&dc->mode)) {
if (tegra_dc_is_t19x())
return tegra_sor_yuv420_8bpc_pixel_depth_t19x();
} else if (yuv_flag & FB_VMODE_Y422) {
if (yuv_flag & FB_VMODE_Y24)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_16_422;
else if (yuv_flag & FB_VMODE_Y30)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_20_422;
else if (yuv_flag & FB_VMODE_Y36)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_24_422;
} else {
if (yuv_flag & FB_VMODE_Y24)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_24_444;
else if (yuv_flag & FB_VMODE_Y30)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_30_444;
else if (yuv_flag & FB_VMODE_Y36)
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_36_444;
}
} else {
return NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_24_444;
}
return NV_SOR_STATE1_ASY_PIXELDEPTH_DEFAULTVAL;
}
static u32 tegra_sor_dp_get_pixel_depth(struct tegra_dc *dc)
{
int yuv_flag = dc->mode.vmode & FB_VMODE_YUV_MASK;
int yuv_bypass_mode = dc->mode.vmode & FB_VMODE_BYPASS;
if (yuv_flag) {
if (!yuv_bypass_mode) {
if (yuv_flag & FB_VMODE_Y422) {
if (yuv_flag & FB_VMODE_Y24)
return
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_16_422;
} else if (IS_RGB(yuv_flag) ||
(yuv_flag & FB_VMODE_Y444)) {
if (yuv_flag & FB_VMODE_Y24)
return
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_24_444;
else if (yuv_flag & FB_VMODE_Y30)
return
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_30_444;
else if (yuv_flag & FB_VMODE_Y36)
return
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_36_444;
} else {
dev_err(&dc->ndev->dev, "%s: Unsupported mode with vmode: 0x%x for DP\n",
__func__, dc->mode.vmode);
}
} else {
dev_err(&dc->ndev->dev, "%s: Unsupported bypass mode with vmode: 0x%x for DP\n",
__func__, dc->mode.vmode);
}
} else {
return (dc->out->depth > 18 || !dc->out->depth) ?
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_24_444 :
NV_SOR_STATE1_ASY_PIXELDEPTH_BPP_18_444;
}
return NV_SOR_STATE1_ASY_PIXELDEPTH_DEFAULTVAL;
}
static u32 tegra_sor_get_pixel_depth(struct tegra_dc *dc)
{
if (dc->out->type == TEGRA_DC_OUT_HDMI)
return tegra_sor_hdmi_get_pixel_depth(dc);
else if ((dc->out->type == TEGRA_DC_OUT_DP) ||
(dc->out->type == TEGRA_DC_OUT_FAKE_DP))
return tegra_sor_dp_get_pixel_depth(dc);
dev_err(&dc->ndev->dev, "%s: unsupported out_type=%d\n",
__func__, dc->out->type);
return 0;
}
static u32 tegra_sor_get_range_compress(struct tegra_dc *dc)
{
if ((dc->mode.vmode & FB_VMODE_BYPASS) ||
!(dc->mode.vmode & FB_VMODE_LIMITED_RANGE))
return NV_HEAD_STATE0_RANGECOMPRESS_DISABLE;
return NV_HEAD_STATE0_RANGECOMPRESS_ENABLE;
}
static u32 tegra_sor_get_dynamic_range(struct tegra_dc *dc)
{
if ((dc->mode.vmode & FB_VMODE_BYPASS) ||
!(dc->mode.vmode & FB_VMODE_LIMITED_RANGE))
return NV_HEAD_STATE0_DYNRANGE_VESA;
return NV_HEAD_STATE0_DYNRANGE_CEA;
}
static u32 tegra_sor_get_color_space(struct tegra_dc *dc)
{
int yuv_flag = dc->mode.vmode & FB_VMODE_YUV_MASK;
u32 color_space = NV_HEAD_STATE0_COLORSPACE_RGB;
if (!IS_RGB(yuv_flag)) {
u32 ec = dc->mode.vmode & FB_VMODE_EC_MASK;
switch (ec) {
case FB_VMODE_EC_ADOBE_YCC601:
case FB_VMODE_EC_SYCC601:
case FB_VMODE_EC_XVYCC601:
color_space = NV_HEAD_STATE0_COLORSPACE_YUV_601;
break;
case FB_VMODE_EC_XVYCC709:
color_space = NV_HEAD_STATE0_COLORSPACE_YUV_709;
break;
default:
break;
}
}
return color_space;
}
static inline u32 tegra_sor_get_adjusted_hblank(struct tegra_dc *dc,
u32 hblank_end)
{
/* For native HDMI420 8bpc, HBLANK_END needs to be halved. */
if (tegra_dc_is_t19x() &&
tegra_dc_is_yuv420_8bpc(&dc->mode) &&
!(dc->mode.vmode & FB_VMODE_BYPASS)
&& dc->out->type == TEGRA_DC_OUT_HDMI)
hblank_end = hblank_end / 2;
return hblank_end;
}
static void tegra_dc_sor_config_panel(struct tegra_dc_sor_data *sor,
bool is_lvds)
{
struct tegra_dc *dc = sor->dc;
const struct tegra_dc_mode *dc_mode = &dc->mode;
int head_num = dc->ctrl_num;
u32 reg_val = NV_SOR_HEADNUM(head_num);
u32 vtotal, htotal;
u32 vsync_end, hsync_end;
u32 vblank_end, hblank_end;
u32 vblank_start, hblank_start;
int out_type = dc->out->type;
if (out_type == TEGRA_DC_OUT_HDMI)
reg_val |= NV_SOR_STATE1_ASY_PROTOCOL_SINGLE_TMDS_A;
else if ((out_type == TEGRA_DC_OUT_DP) ||
(out_type == TEGRA_DC_OUT_FAKE_DP))
reg_val |= NV_SOR_STATE1_ASY_PROTOCOL_DP_A;
else
reg_val |= NV_SOR_STATE1_ASY_PROTOCOL_LVDS_CUSTOM;
reg_val |= NV_SOR_STATE1_ASY_SUBOWNER_NONE |
NV_SOR_STATE1_ASY_CRCMODE_COMPLETE_RASTER;
if (dc_mode->flags & TEGRA_DC_MODE_FLAG_NEG_H_SYNC)
reg_val |= NV_SOR_STATE1_ASY_HSYNCPOL_NEGATIVE_TRUE;
else
reg_val |= NV_SOR_STATE1_ASY_HSYNCPOL_POSITIVE_TRUE;
if (dc_mode->flags & TEGRA_DC_MODE_FLAG_NEG_V_SYNC)
reg_val |= NV_SOR_STATE1_ASY_VSYNCPOL_NEGATIVE_TRUE;
else
reg_val |= NV_SOR_STATE1_ASY_VSYNCPOL_POSITIVE_TRUE;
reg_val |= tegra_sor_get_pixel_depth(dc);
tegra_sor_writel(sor, NV_SOR_STATE1, reg_val);
/* Interlaced is not supported in hw */
reg_val = NV_HEAD_STATE0_INTERLACED_PROGRESSIVE;
reg_val |= tegra_sor_get_range_compress(sor->dc);
reg_val |= tegra_sor_get_dynamic_range(sor->dc);
reg_val |= tegra_sor_get_color_space(sor->dc);
tegra_sor_writel(sor, nv_sor_head_state0(head_num), reg_val);
BUG_ON(!dc_mode);
vtotal = dc_mode->v_sync_width + dc_mode->v_back_porch +
dc_mode->v_active + dc_mode->v_front_porch;
htotal = dc_mode->h_sync_width + dc_mode->h_back_porch +
dc_mode->h_active + dc_mode->h_front_porch;
tegra_sor_writel(sor, nv_sor_head_state1(head_num),
vtotal << NV_HEAD_STATE1_VTOTAL_SHIFT |
htotal << NV_HEAD_STATE1_HTOTAL_SHIFT);
vsync_end = dc_mode->v_sync_width - 1;
hsync_end = dc_mode->h_sync_width - 1;
tegra_sor_writel(sor, nv_sor_head_state2(head_num),
vsync_end << NV_HEAD_STATE2_VSYNC_END_SHIFT |
hsync_end << NV_HEAD_STATE2_HSYNC_END_SHIFT);
vblank_end = vsync_end + dc_mode->v_back_porch;
hblank_end = hsync_end + dc_mode->h_back_porch;
hblank_end = tegra_sor_get_adjusted_hblank(dc, hblank_end);
tegra_sor_writel(sor, nv_sor_head_state3(head_num),
vblank_end << NV_HEAD_STATE3_VBLANK_END_SHIFT |
hblank_end << NV_HEAD_STATE3_HBLANK_END_SHIFT);
vblank_start = vblank_end + dc_mode->v_active;
hblank_start = hblank_end + dc_mode->h_active;
tegra_sor_writel(sor, nv_sor_head_state4(head_num),
vblank_start << NV_HEAD_STATE4_VBLANK_START_SHIFT |
hblank_start << NV_HEAD_STATE4_HBLANK_START_SHIFT);
tegra_sor_writel(sor, nv_sor_head_state5(head_num), 0x1);
tegra_sor_write_field(sor, NV_SOR_CSTM,
NV_SOR_CSTM_ROTCLK_DEFAULT_MASK |
NV_SOR_CSTM_LVDS_EN_ENABLE,
2 << NV_SOR_CSTM_ROTCLK_SHIFT |
is_lvds ? NV_SOR_CSTM_LVDS_EN_ENABLE :
NV_SOR_CSTM_LVDS_EN_DISABLE);
tegra_dc_sor_config_pwm(sor, 1024, 1024);
}
static void tegra_dc_sor_enable_dc(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
u32 reg_val;
tegra_dc_get(dc);
reg_val = tegra_dc_readl(dc, DC_CMD_STATE_ACCESS);
if (tegra_platform_is_vdk())
tegra_dc_writel(dc, reg_val | WRITE_MUX_ASSEMBLY,
DC_CMD_STATE_ACCESS);
else
tegra_dc_writel(dc, reg_val | WRITE_MUX_ACTIVE,
DC_CMD_STATE_ACCESS);
if (tegra_dc_is_t21x()) {
if (tegra_platform_is_fpga()) {
tegra_dc_writel(dc, 0, DC_DISP_DISP_CLOCK_CONTROL);
tegra_dc_writel(dc, 0xe, DC_DISP_DC_MCCIF_FIFOCTRL);
}
tegra_dc_writel(dc, VSYNC_H_POSITION(1),
DC_DISP_DISP_TIMING_OPTIONS);
}
/* Enable DC */
if (dc->out->vrr) {
if (tegra_dc_is_nvdisplay())
tegra_nvdisp_set_vrr_mode(dc);
else
tegra_dc_writel(dc, DISP_CTRL_MODE_C_DISPLAY,
DC_CMD_DISPLAY_COMMAND);
}
else if (dc->frm_lck_info.frame_lock_enable &&
((dc->out->type == TEGRA_DC_OUT_HDMI) ||
(dc->out->type == TEGRA_DC_OUT_DP) ||
(dc->out->type == TEGRA_DC_OUT_FAKE_DP))) {
int ret;
mutex_unlock(&dc->lock);
ret = tegra_dc_common_sync_frames(dc, DC_CMD_DISPLAY_COMMAND,
DC_CMD_STATE_ACCESS, DISP_CTRL_MODE_C_DISPLAY);
mutex_lock(&dc->lock);
if (ret)
dev_err(&dc->ndev->dev,
"failed to submit job for tegradc.%d with error : %d\n",
dc->ctrl_num, ret);
} else {
tegra_dc_writel(dc, DISP_CTRL_MODE_C_DISPLAY,
DC_CMD_DISPLAY_COMMAND);
}
tegra_dc_writel(dc, reg_val, DC_CMD_STATE_ACCESS);
tegra_dc_put(dc);
}
void tegra_sor_cal(struct tegra_dc_sor_data *sor)
{
u32 nv_sor_pll1_reg = nv_sor_pll1();
u32 nv_sor_pll2_reg = nv_sor_pll2();
if (sor->dc->initialized)
return;
/* For HDMI, rterm calibration is currently enabled only on T19x. */
if (!tegra_dc_is_t19x() && sor->dc->out->type == TEGRA_DC_OUT_HDMI)
return;
tegra_dc_sor_io_set_dpd(sor, true);
usleep_range(5, 20);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_DISABLE);
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERM_ENABLE,
NV_SOR_PLL1_TMDS_TERM_ENABLE);
usleep_range(20, 100);
tegra_sor_pad_cal_power(sor, true);
usleep_range(10, 20);
tegra_dc_sor_termination_cal(sor);
tegra_sor_pad_cal_power(sor, false);
usleep_range(10, 20);
tegra_sor_write_field(sor, nv_sor_pll2_reg,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_MASK,
NV_SOR_PLL2_AUX6_BANDGAP_POWERDOWN_ENABLE);
tegra_sor_write_field(sor, nv_sor_pll1_reg,
NV_SOR_PLL1_TMDS_TERM_ENABLE,
NV_SOR_PLL1_TMDS_TERM_DISABLE);
usleep_range(20, 100);
tegra_dc_sor_io_set_dpd(sor, false);
usleep_range(5, 20);
}
void tegra_sor_config_xbar(struct tegra_dc_sor_data *sor)
{
u32 val = 0, mask = 0, shift = 0;
u32 i = 0;
mask = (NV_SOR_XBAR_BYPASS_MASK | NV_SOR_XBAR_LINK_SWAP_MASK);
for (i = 0, shift = 2; i < sizeof(sor->xbar_ctrl)/sizeof(u32);
shift += 3, i++) {
mask |= NV_SOR_XBAR_LINK_XSEL_MASK << shift;
val |= sor->xbar_ctrl[i] << shift;
}
tegra_sor_write_field(sor, NV_SOR_XBAR_CTRL, mask, val);
tegra_sor_writel(sor, NV_SOR_XBAR_POL, 0);
}
void tegra_dc_sor_enable_dp(struct tegra_dc_sor_data *sor)
{
if (!sor->dc->initialized) {
tegra_sor_cal(sor);
tegra_sor_dp_pad_power_up(sor);
tegra_sor_power_lanes(sor, sor->link_cfg->lane_count, true);
} else {
/* Update sor power state for seamless */
sor->power_is_up = true;
}
}
static void tegra_dc_sor_enable_sor(struct tegra_dc_sor_data *sor, bool enable)
{
struct tegra_dc *dc = sor->dc;
/* Do not disable SOR during seamless boot */
if (dc->initialized && !enable)
return;
if (tegra_dc_is_t21x()) {
u32 reg_val = tegra_dc_readl(sor->dc, DC_DISP_DISP_WIN_OPTIONS);
u32 enb = sor->ctrl_num ? SOR1_ENABLE : SOR_ENABLE;
if (dc->out->type == TEGRA_DC_OUT_HDMI)
enb |= SOR1_TIMING_CYA;
reg_val = enable ? reg_val | enb : reg_val & ~enb;
tegra_dc_writel(dc, reg_val, DC_DISP_DISP_WIN_OPTIONS);
} else if (tegra_dc_is_t18x()) {
tegra_dc_enable_sor_t18x(dc, sor->ctrl_num, enable);
} else if (tegra_dc_is_t19x()) {
tegra_dc_enable_sor_t19x(dc, sor->ctrl_num, enable);
} else {
pr_err("%s: Unknown Tegra SOC\n", __func__);
return;
}
}
void tegra_dc_sor_attach(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
u32 reg_val;
if (sor->sor_state == SOR_ATTACHED)
return;
tegra_dc_get(dc);
reg_val = tegra_dc_readl(dc, DC_CMD_STATE_ACCESS);
if (tegra_platform_is_vdk())
tegra_dc_writel(dc, reg_val | WRITE_MUX_ASSEMBLY,
DC_CMD_STATE_ACCESS);
else
tegra_dc_writel(dc, reg_val | WRITE_MUX_ACTIVE,
DC_CMD_STATE_ACCESS);
tegra_dc_sor_config_panel(sor, false);
tegra_dc_sor_update(sor);
/* Sleep request */
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_SLEEP |
NV_SOR_SUPER_STATE1_ASY_ORMODE_SAFE |
NV_SOR_SUPER_STATE1_ATTACHED_YES);
tegra_dc_sor_super_update(sor);
if (tegra_dc_sor_poll_register(sor, NV_SOR_TEST,
NV_SOR_TEST_ATTACHED_DEFAULT_MASK,
NV_SOR_TEST_ATTACHED_TRUE,
100, TEGRA_SOR_ATTACH_TIMEOUT_MS)) {
dev_err(&dc->ndev->dev,
"dc timeout waiting for ATTACH = TRUE\n");
}
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_SLEEP |
NV_SOR_SUPER_STATE1_ASY_ORMODE_NORMAL |
NV_SOR_SUPER_STATE1_ATTACHED_YES);
tegra_dc_sor_super_update(sor);
tegra_dc_sor_enable_dc(sor);
tegra_dc_sor_enable_sor(sor, true);
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_AWAKE |
NV_SOR_SUPER_STATE1_ASY_ORMODE_NORMAL |
NV_SOR_SUPER_STATE1_ATTACHED_YES);
tegra_dc_sor_super_update(sor);
tegra_dc_writel(dc, reg_val, DC_CMD_STATE_ACCESS);
tegra_dc_put(dc);
sor->sor_state = SOR_ATTACHED;
}
/* Disable windows and set minimum raster timings */
static void
tegra_dc_sor_disable_win_short_raster_t21x(struct tegra_dc *dc, int *dc_reg_ctx)
{
int selected_windows, i;
selected_windows = tegra_dc_readl(dc, DC_CMD_DISPLAY_WINDOW_HEADER);
/* Store and clear window options */
for_each_set_bit(i, &dc->valid_windows,
tegra_dc_get_numof_dispwindows()) {
tegra_dc_writel(dc, WINDOW_A_SELECT << i,
DC_CMD_DISPLAY_WINDOW_HEADER);
dc_reg_ctx[i] = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS);
tegra_dc_writel(dc, 0, DC_WIN_WIN_OPTIONS);
tegra_dc_writel(dc, WIN_A_ACT_REQ << i, DC_CMD_STATE_CONTROL);
}
tegra_dc_writel(dc, selected_windows, DC_CMD_DISPLAY_WINDOW_HEADER);
/* Store current raster timings and set minimum timings */
dc_reg_ctx[i++] = tegra_dc_readl(dc, DC_DISP_REF_TO_SYNC);
tegra_dc_writel(dc, min_mode.h_ref_to_sync |
(min_mode.v_ref_to_sync << 16), DC_DISP_REF_TO_SYNC);
dc_reg_ctx[i++] = tegra_dc_readl(dc, DC_DISP_SYNC_WIDTH);
tegra_dc_writel(dc, min_mode.h_sync_width |
(min_mode.v_sync_width << 16), DC_DISP_SYNC_WIDTH);
dc_reg_ctx[i++] = tegra_dc_readl(dc, DC_DISP_BACK_PORCH);
tegra_dc_writel(dc, min_mode.h_back_porch |
((min_mode.v_back_porch - min_mode.v_ref_to_sync) << 16),
DC_DISP_BACK_PORCH);
dc_reg_ctx[i++] = tegra_dc_readl(dc, DC_DISP_FRONT_PORCH);
tegra_dc_writel(dc, min_mode.h_front_porch |
((min_mode.v_front_porch + min_mode.v_ref_to_sync) << 16),
DC_DISP_FRONT_PORCH);
dc_reg_ctx[i++] = tegra_dc_readl(dc, DC_DISP_DISP_ACTIVE);
tegra_dc_writel(dc, min_mode.h_active | (min_mode.v_active << 16),
DC_DISP_DISP_ACTIVE);
tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
}
/* Restore previous windows status and raster timings */
static void
tegra_dc_sor_restore_win_and_raster_t21x(struct tegra_dc *dc, int *dc_reg_ctx)
{
int selected_windows, i;
selected_windows = tegra_dc_readl(dc, DC_CMD_DISPLAY_WINDOW_HEADER);
for_each_set_bit(i, &dc->valid_windows,
tegra_dc_get_numof_dispwindows()) {
tegra_dc_writel(dc, WINDOW_A_SELECT << i,
DC_CMD_DISPLAY_WINDOW_HEADER);
tegra_dc_writel(dc, dc_reg_ctx[i], DC_WIN_WIN_OPTIONS);
tegra_dc_writel(dc, WIN_A_ACT_REQ << i, DC_CMD_STATE_CONTROL);
}
tegra_dc_writel(dc, selected_windows, DC_CMD_DISPLAY_WINDOW_HEADER);
tegra_dc_writel(dc, dc_reg_ctx[i++], DC_DISP_REF_TO_SYNC);
tegra_dc_writel(dc, dc_reg_ctx[i++], DC_DISP_SYNC_WIDTH);
tegra_dc_writel(dc, dc_reg_ctx[i++], DC_DISP_BACK_PORCH);
tegra_dc_writel(dc, dc_reg_ctx[i++], DC_DISP_FRONT_PORCH);
tegra_dc_writel(dc, dc_reg_ctx[i++], DC_DISP_DISP_ACTIVE);
tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
}
static inline void tegra_sor_save_dc_state(struct tegra_dc_sor_data *sor)
{
if (tegra_dc_is_nvdisplay())
tegra_nvdisp_disable_wins(sor->dc, sor->win_state_arr);
else
tegra_dc_sor_disable_win_short_raster_t21x(sor->dc,
sor->dc_reg_ctx);
}
static inline void tegra_sor_restore_dc_state(struct tegra_dc_sor_data *sor)
{
if (tegra_dc_is_nvdisplay())
tegra_nvdisp_restore_wins(sor->dc, sor->win_state_arr);
else
tegra_dc_sor_restore_win_and_raster_t21x(sor->dc,
sor->dc_reg_ctx);
}
void tegra_sor_stop_dc(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
tegra_dc_get(dc);
if (tegra_dc_is_nvdisplay()) {
/*SOR should be attached if the Display command != STOP */
/* Stop DC */
tegra_dc_writel(dc, DISP_CTRL_MODE_STOP,
DC_CMD_DISPLAY_COMMAND);
tegra_dc_enable_general_act(dc);
/* Stop DC->SOR path */
tegra_dc_sor_enable_sor(sor, false);
} else {
/* Stop DC->SOR path */
tegra_dc_sor_enable_sor(sor, false);
tegra_dc_enable_general_act(dc);
/* Stop DC */
tegra_dc_writel(dc, DISP_CTRL_MODE_STOP,
DC_CMD_DISPLAY_COMMAND);
}
tegra_dc_enable_general_act(dc);
tegra_dc_put(dc);
}
void tegra_dc_sor_sleep(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
if (sor->sor_state == SOR_SLEEP)
return;
/* set OR mode to SAFE */
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_AWAKE |
NV_SOR_SUPER_STATE1_ASY_ORMODE_SAFE |
NV_SOR_SUPER_STATE1_ATTACHED_YES);
tegra_dc_sor_super_update(sor);
if (tegra_dc_sor_poll_register(sor, NV_SOR_PWR,
NV_SOR_PWR_MODE_DEFAULT_MASK,
NV_SOR_PWR_MODE_SAFE,
100, TEGRA_SOR_ATTACH_TIMEOUT_MS)) {
dev_err(&dc->ndev->dev,
"dc timeout waiting for OR MODE = SAFE\n");
}
/* set HEAD mode to SLEEP */
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_SLEEP |
NV_SOR_SUPER_STATE1_ASY_ORMODE_SAFE |
NV_SOR_SUPER_STATE1_ATTACHED_YES);
tegra_dc_sor_super_update(sor);
if (tegra_dc_sor_poll_register(sor, NV_SOR_TEST,
NV_SOR_TEST_ACT_HEAD_OPMODE_DEFAULT_MASK,
NV_SOR_TEST_ACT_HEAD_OPMODE_SLEEP,
100, TEGRA_SOR_ATTACH_TIMEOUT_MS)) {
dev_err(&dc->ndev->dev,
"dc timeout waiting for HEAD MODE = SLEEP\n");
}
sor->sor_state = SOR_SLEEP;
}
void tegra_dc_sor_pre_detach(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
if (sor->sor_state != SOR_ATTACHED && sor->sor_state != SOR_SLEEP)
return;
tegra_dc_get(dc);
tegra_dc_sor_sleep(sor);
tegra_sor_save_dc_state(sor);
sor->sor_state = SOR_DETACHING;
tegra_dc_put(dc);
}
void tegra_dc_sor_detach(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
unsigned long dc_int_mask;
if (sor->sor_state == SOR_DETACHED)
return;
tegra_dc_get(dc);
/* Mask DC interrupts during the 2 dummy frames required for detach */
dc_int_mask = tegra_dc_readl(dc, DC_CMD_INT_MASK);
tegra_dc_writel(dc, 0, DC_CMD_INT_MASK);
if (sor->sor_state != SOR_DETACHING)
tegra_dc_sor_pre_detach(sor);
/* detach SOR */
tegra_sor_writel(sor, NV_SOR_SUPER_STATE1,
NV_SOR_SUPER_STATE1_ASY_HEAD_OP_SLEEP |
NV_SOR_SUPER_STATE1_ASY_ORMODE_SAFE |
NV_SOR_SUPER_STATE1_ATTACHED_NO);
tegra_dc_sor_super_update(sor);
if (tegra_dc_sor_poll_register(sor, NV_SOR_TEST,
NV_SOR_TEST_ATTACHED_DEFAULT_MASK,
NV_SOR_TEST_ATTACHED_FALSE,
100, TEGRA_SOR_ATTACH_TIMEOUT_MS)) {
dev_err(&dc->ndev->dev,
"dc timeout waiting for ATTACH = FALSE\n");
}
tegra_sor_writel(sor, NV_SOR_STATE1,
NV_SOR_STATE1_ASY_OWNER_NONE |
NV_SOR_STATE1_ASY_SUBOWNER_NONE |
NV_SOR_STATE1_ASY_PROTOCOL_LVDS_CUSTOM);
tegra_dc_sor_update(sor);
tegra_sor_stop_dc(sor);
tegra_sor_restore_dc_state(sor);
tegra_dc_writel(dc, dc_int_mask, DC_CMD_INT_MASK);
sor->sor_state = SOR_DETACHED;
tegra_dc_put(dc);
}
void tegra_dc_sor_disable(struct tegra_dc_sor_data *sor)
{
struct tegra_dc *dc = sor->dc;
tegra_sor_config_safe_clk(sor);
/* Power down DP lanes */
if (tegra_sor_power_lanes(sor, 4, false)) {
dev_err(&dc->ndev->dev,
"Failed to power down dp lanes\n");
return;
}
/* Power down pad macro */
tegra_sor_dp_pad_power_down(sor);
if (tegra_platform_is_vdk())
return;
/* Reset SOR */
tegra_sor_reset(sor);
tegra_sor_clk_disable(sor);
}
void tegra_dc_sor_set_internal_panel(struct tegra_dc_sor_data *sor, bool is_int)
{
u32 reg_val;
reg_val = tegra_sor_readl(sor, NV_SOR_DP_SPARE(sor->portnum));
if (is_int)
reg_val |= NV_SOR_DP_SPARE_PANEL_INTERNAL;
else
reg_val &= ~NV_SOR_DP_SPARE_PANEL_INTERNAL;
reg_val |= NV_SOR_DP_SPARE_SOR_CLK_SEL_MACRO_SORCLK;
tegra_sor_writel(sor, NV_SOR_DP_SPARE(sor->portnum), reg_val);
if (sor->dc->out->type == TEGRA_DC_OUT_HDMI) {
if (tegra_dc_is_nvdisplay())
tegra_sor_write_field(sor,
NV_SOR_DP_SPARE(sor->portnum),
NV_SOR_DP_SPARE_VIDEO_PREANBLE_CYA_MASK,
NV_SOR_DP_SPARE_VIDEO_PREANBLE_CYA_DISABLE);
else
tegra_sor_write_field(sor,
NV_SOR_DP_SPARE(sor->portnum),
NV_SOR_DP_SPARE_VIDEO_PREANBLE_CYA_MASK,
NV_SOR_DP_SPARE_VIDEO_PREANBLE_CYA_ENABLE);
}
}
void tegra_dc_sor_set_link_bandwidth(struct tegra_dc_sor_data *sor, u8 link_bw)
{
WARN_ON(sor->sor_state == SOR_ATTACHED);
/* FIXME: does order matter with dettached SOR? */
if (tegra_dc_is_nvdisplay()) {
/* link rate = fixed pll_dp@270MHz * link_bw / 10 */
clk_set_rate(sor->pad_clk, 270000000UL * link_bw / 10);
}
tegra_sor_write_field(sor, NV_SOR_CLK_CNTRL,
NV_SOR_CLK_CNTRL_DP_LINK_SPEED_MASK,
link_bw << NV_SOR_CLK_CNTRL_DP_LINK_SPEED_SHIFT);
/* It can take upto 200us for PLLs in analog macro to settle */
udelay(300);
}
void tegra_dc_sor_set_lane_count(struct tegra_dc_sor_data *sor, u8 lane_count)
{
u32 reg_lane_cnt = 0;
switch (lane_count) {
case 0:
reg_lane_cnt = NV_SOR_DP_LINKCTL_LANECOUNT_ZERO;
break;
case 1:
reg_lane_cnt = NV_SOR_DP_LINKCTL_LANECOUNT_ONE;
break;
case 2:
reg_lane_cnt = NV_SOR_DP_LINKCTL_LANECOUNT_TWO;
break;
case 4:
reg_lane_cnt = NV_SOR_DP_LINKCTL_LANECOUNT_FOUR;
break;
default:
/* 0 should be handled earlier. */
dev_err(&sor->dc->ndev->dev, "dp: Invalid lane count %d\n",
lane_count);
return;
}
tegra_sor_write_field(sor, NV_SOR_DP_LINKCTL(sor->portnum),
NV_SOR_DP_LINKCTL_LANECOUNT_MASK,
reg_lane_cnt);
}
void tegra_sor_setup_clk(struct tegra_dc_sor_data *sor, struct clk *clk,
bool is_lvds)
{
struct clk *dc_parent_clk;
struct tegra_dc *dc = sor->dc;
if (tegra_platform_is_vdk())
return;
if (clk == dc->clk) {
dc_parent_clk = clk_get_parent(clk);
BUG_ON(!dc_parent_clk);
/* Change for seamless */
if (!dc->initialized) {
if (dc->mode.pclk != clk_get_rate(dc_parent_clk)) {
clk_set_rate(dc_parent_clk, dc->mode.pclk);
clk_set_rate(clk, dc->mode.pclk);
}
}
if (!tegra_dc_is_nvdisplay())
return;
/*
* For t18x plldx cannot go below 27MHz.
* Real HW limit is lesser though.
* 27Mz is chosen to have a safe margin.
*/
if (dc->mode.pclk < 27000000) {
if ((2 * dc->mode.pclk) != clk_get_rate(dc_parent_clk))
clk_set_rate(dc_parent_clk, 2 * dc->mode.pclk);
if (dc->mode.pclk != clk_get_rate(dc->clk))
clk_set_rate(dc->clk, dc->mode.pclk);
}
}
}
void tegra_sor_precharge_lanes(struct tegra_dc_sor_data *sor)
{
const struct tegra_dc_dp_link_config *cfg = sor->link_cfg;
u32 nv_sor_dp_padctl_reg = nv_sor_dp_padctl(sor->portnum);
u32 val = 0;
val = tegra_sor_get_pd_tx_bitmap(sor, cfg->lane_count);
/* force lanes to output common mode voltage */
tegra_sor_write_field(sor, nv_sor_dp_padctl_reg,
(0xf << NV_SOR_DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT),
(val << NV_SOR_DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT));
/* precharge for atleast 10us */
usleep_range(20, 100);
/* fallback to normal operation */
tegra_sor_write_field(sor, nv_sor_dp_padctl_reg,
(0xf << NV_SOR_DP_PADCTL_COMODE_TXD_0_DP_TXD_2_SHIFT), 0);
}
void tegra_dc_sor_modeset_notifier(struct tegra_dc_sor_data *sor, bool is_lvds)
{
if (sor->dc->initialized)
return;
if (!sor->clk_type)
tegra_sor_config_safe_clk(sor);
tegra_sor_clk_enable(sor);
tegra_dc_sor_config_panel(sor, is_lvds);
tegra_dc_sor_update(sor);
tegra_dc_sor_super_update(sor);
tegra_sor_clk_disable(sor);
}
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