262 lines
5.6 KiB
C
262 lines
5.6 KiB
C
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/*
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* panel-a-1080p-11-6.c: Panel driver for a-1080p-11-6 panel.
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*
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* Copyright (c) 2014-2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/regulator/consumer.h>
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#include "../dc.h"
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#include "board.h"
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#include "board-panel.h"
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static bool reg_requested;
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static struct regulator *vdd_lcd_bl;
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static struct regulator *vdd_lcd_bl_en;
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static struct regulator *avdd_lcd;
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static struct regulator *vdd_ds_1v8;
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static struct regulator *avdd_3v3_dp;
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static int laguna_edp_regulator_get(struct device *dev)
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{
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int err = 0;
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if (reg_requested)
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return 0;
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vdd_ds_1v8 = regulator_get(dev, "vdd_ds_1v8");
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if (IS_ERR(vdd_ds_1v8)) {
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pr_err("vdd_ds_1v8 regulator get failed\n");
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err = PTR_ERR(vdd_ds_1v8);
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vdd_ds_1v8 = NULL;
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goto fail;
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}
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vdd_lcd_bl = regulator_get(dev, "vdd_lcd_bl");
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if (IS_ERR(vdd_lcd_bl)) {
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pr_err("vdd_lcd_bl regulator get failed\n");
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err = PTR_ERR(vdd_lcd_bl);
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vdd_lcd_bl = NULL;
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goto fail;
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}
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vdd_lcd_bl_en = regulator_get(dev, "vdd_lcd_bl_en");
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if (IS_ERR(vdd_lcd_bl_en)) {
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pr_err("vdd_lcd_bl_en regulator get failed\n");
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err = PTR_ERR(vdd_lcd_bl_en);
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vdd_lcd_bl_en = NULL;
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goto fail;
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}
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avdd_lcd = regulator_get(dev, "avdd_lcd");
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if (IS_ERR(avdd_lcd)) {
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pr_err("avdd_lcd regulator get failed\n");
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err = PTR_ERR(avdd_lcd);
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avdd_lcd = NULL;
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goto fail;
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}
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reg_requested = true;
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return 0;
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fail:
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return err;
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}
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static int ardbeg_edp_regulator_get(struct device *dev)
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{
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int err = 0;
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if (reg_requested)
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return 0;
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vdd_ds_1v8 = regulator_get(dev, "vdd_lcd_1v8_s");
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if (IS_ERR_OR_NULL(vdd_ds_1v8)) {
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pr_err("vdd_ds_1v8 regulator get failed\n");
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err = PTR_ERR(vdd_ds_1v8);
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vdd_ds_1v8 = NULL;
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goto fail;
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}
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vdd_lcd_bl_en = regulator_get(dev, "vdd_lcd_bl_en");
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if (IS_ERR_OR_NULL(vdd_lcd_bl_en)) {
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pr_err("vdd_lcd_bl_en regulator get failed\n");
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err = PTR_ERR(vdd_lcd_bl_en);
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vdd_lcd_bl_en = NULL;
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goto fail;
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}
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avdd_lcd = regulator_get(dev, "avdd_lcd");
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if (IS_ERR_OR_NULL(avdd_lcd)) {
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pr_err("avdd_lcd regulator get failed\n");
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err = PTR_ERR(avdd_lcd);
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avdd_lcd = NULL;
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goto fail;
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}
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avdd_3v3_dp = regulator_get(dev, "avdd_3v3_dp");
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if (IS_ERR_OR_NULL(avdd_3v3_dp)) {
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pr_err("avdd_3v3_dp regulator get failed\n");
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err = PTR_ERR(avdd_3v3_dp);
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avdd_3v3_dp = NULL;
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goto fail;
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}
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reg_requested = true;
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return 0;
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fail:
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return err;
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}
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static int edp_i_1080p_11_6_enable(struct device *dev)
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{
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int err = 0;
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if (of_machine_is_compatible("nvidia,ardbeg"))
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err = ardbeg_edp_regulator_get(dev);
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else
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err = laguna_edp_regulator_get(dev);
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if (err < 0) {
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pr_err("edp regulator get failed\n");
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goto fail;
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}
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err = tegra_panel_gpio_get_dt("i-edp,1080p-11-6",
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&panel_of);
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if (err < 0) {
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pr_err("edp gpio request failed\n");
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goto fail;
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}
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if (vdd_lcd_bl) {
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err = regulator_enable(vdd_lcd_bl);
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if (err < 0) {
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pr_err("vdd_lcd_bl regulator enable failed\n");
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goto fail;
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}
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}
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if (avdd_3v3_dp) {
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err = regulator_enable(avdd_3v3_dp);
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if (err < 0) {
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pr_err("avdd_3v3_dp regulator enable failed\n");
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goto fail;
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}
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}
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msleep(20);
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if (vdd_ds_1v8) {
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err = regulator_enable(vdd_ds_1v8);
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if (err < 0) {
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pr_err("vdd_ds_1v8 regulator enable failed\n");
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goto fail;
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}
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}
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if (avdd_lcd) {
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err = regulator_enable(avdd_lcd);
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if (err < 0) {
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pr_err("avdd_lcd regulator enable failed\n");
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goto fail;
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}
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}
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msleep(10);
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if (vdd_lcd_bl_en) {
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err = regulator_enable(vdd_lcd_bl_en);
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if (err < 0) {
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pr_err("vdd_lcd_bl_en regulator enable failed\n");
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goto fail;
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}
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}
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msleep(180);
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return 0;
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fail:
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return err;
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}
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static int edp_i_1080p_11_6_disable(struct device *dev)
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{
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if (vdd_lcd_bl_en)
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regulator_disable(vdd_lcd_bl_en);
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msleep(10);
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if (avdd_lcd)
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regulator_disable(avdd_lcd);
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if (vdd_ds_1v8)
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regulator_disable(vdd_ds_1v8);
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msleep(10);
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if (vdd_lcd_bl)
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regulator_disable(vdd_lcd_bl);
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if (avdd_3v3_dp)
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regulator_disable(avdd_3v3_dp);
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msleep(500);
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return 0;
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}
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static int edp_i_1080p_11_6_postsuspend(void)
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{
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return 0;
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}
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static int edp_i_1080p_11_6_bl_notify(struct device *dev, int brightness)
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{
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struct backlight_device *bl = NULL;
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struct pwm_bl_data *pb = NULL;
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bl = (struct backlight_device *)dev_get_drvdata(dev);
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pb = (struct pwm_bl_data *)dev_get_drvdata(&bl->dev);
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/* Apply any backlight response curve */
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if (brightness > 255)
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pr_info("Error: Brightness > 255!\n");
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else if (pb->bl_measured)
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brightness = pb->bl_measured[brightness];
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return brightness;
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}
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static int edp_i_1080p_11_6_check_fb(struct device *dev, struct fb_info *info)
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{
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struct platform_device *pdev = NULL;
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pdev = to_platform_device(bus_find_device_by_name(
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&platform_bus_type, NULL, "tegradc.0"));
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return info->device == &pdev->dev;
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}
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static struct pwm_bl_data_dt_ops edp_i_1080p_11_6_pwm_bl_ops = {
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.notify = edp_i_1080p_11_6_bl_notify,
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.check_fb = edp_i_1080p_11_6_check_fb,
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.blnode_compatible = "i-edp,1080p-11-6-bl",
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};
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struct tegra_panel_ops edp_i_1080p_11_6_ops = {
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.enable = edp_i_1080p_11_6_enable,
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.disable = edp_i_1080p_11_6_disable,
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.postsuspend = edp_i_1080p_11_6_postsuspend,
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.pwm_bl_ops = &edp_i_1080p_11_6_pwm_bl_ops,
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};
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