878 lines
23 KiB
C
878 lines
23 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include <linux/backlight.h>
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#include <drm/drmP.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_panel.h>
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#include <linux/gpio/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <video/of_videomode.h>
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#include <video/videomode.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/of_graph.h>
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#include <linux/platform_device.h>
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#define CONFIG_MTK_PANEL_EXT
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#if defined(CONFIG_MTK_PANEL_EXT)
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#include "../mediatek/mtk_panel_ext.h"
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#include "../mediatek/mtk_log.h"
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#include "../mediatek/mtk_drm_graphics_base.h"
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#endif
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#ifdef CONFIG_MTK_ROUND_CORNER_SUPPORT
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#include "../mediatek/mtk_corner_pattern/mtk_data_hw_roundedpattern.h"
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#endif
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struct lcm {
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struct device *dev;
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struct drm_panel panel;
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struct backlight_device *backlight;
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struct gpio_desc *reset_gpio;
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struct gpio_desc *bias_pos, *bias_neg;
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bool prepared;
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bool enabled;
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int error;
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};
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#define lcm_dcs_write_seq(ctx, seq...) \
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({\
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const u8 d[] = { seq };\
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BUILD_BUG_ON_MSG(ARRAY_SIZE(d) > 64, "DCS sequence too big for stack");\
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lcm_dcs_write(ctx, d, ARRAY_SIZE(d));\
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})
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#define lcm_dcs_write_seq_static(ctx, seq...) \
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({\
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static const u8 d[] = { seq };\
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lcm_dcs_write(ctx, d, ARRAY_SIZE(d));\
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})
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static inline struct lcm *panel_to_lcm(struct drm_panel *panel)
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{
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return container_of(panel, struct lcm, panel);
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}
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static void lcm_dcs_write(struct lcm *ctx, const void *data, size_t len)
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{
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struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
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ssize_t ret;
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char *addr;
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if (ctx->error < 0)
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return;
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addr = (char *)data;
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if ((int)*addr < 0xB0)
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ret = mipi_dsi_dcs_write_buffer(dsi, data, len);
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else
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ret = mipi_dsi_generic_write(dsi, data, len);
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if (ret < 0) {
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dev_err(ctx->dev, "error %zd writing seq: %ph\n", ret, data);
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ctx->error = ret;
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}
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}
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#ifdef PANEL_SUPPORT_READBACK
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static int lcm_dcs_read(struct lcm *ctx, u8 cmd, void *data, size_t len)
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{
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struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
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ssize_t ret;
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if (ctx->error < 0)
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return 0;
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ret = mipi_dsi_dcs_read(dsi, cmd, data, len);
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if (ret < 0) {
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dev_err(ctx->dev, "error %d reading dcs seq:(%#x)\n", ret, cmd);
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ctx->error = ret;
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}
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return ret;
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}
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static void lcm_panel_get_data(struct lcm *ctx)
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{
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u8 buffer[3] = {0};
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static int ret;
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if (ret == 0) {
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ret = lcm_dcs_read(ctx, 0x0A, buffer, 1);
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dev_info(ctx->dev, "return %d data(0x%08x) to dsi engine\n",
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ret, buffer[0] | (buffer[1] << 8));
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}
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}
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#endif
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#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
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static struct regulator *disp_bias_pos;
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static struct regulator *disp_bias_neg;
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static int lcm_panel_bias_regulator_init(void)
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{
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static int regulator_inited;
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int ret = 0;
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if (regulator_inited)
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return ret;
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/* please only get regulator once in a driver */
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disp_bias_pos = regulator_get(NULL, "dsv_pos");
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if (IS_ERR(disp_bias_pos)) { /* handle return value */
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ret = PTR_ERR(disp_bias_pos);
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pr_err("get dsv_pos fail, error: %d\n", ret);
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return ret;
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}
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disp_bias_neg = regulator_get(NULL, "dsv_neg");
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if (IS_ERR(disp_bias_neg)) { /* handle return value */
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ret = PTR_ERR(disp_bias_neg);
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pr_err("get dsv_neg fail, error: %d\n", ret);
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return ret;
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}
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regulator_inited = 1;
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return ret; /* must be 0 */
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}
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static int lcm_panel_bias_enable(void)
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{
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int ret = 0;
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int retval = 0;
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lcm_panel_bias_regulator_init();
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/* set voltage with min & max*/
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ret = regulator_set_voltage(disp_bias_pos, 5400000, 5400000);
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if (ret < 0)
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pr_err("set voltage disp_bias_pos fail, ret = %d\n", ret);
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retval |= ret;
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ret = regulator_set_voltage(disp_bias_neg, 5400000, 5400000);
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if (ret < 0)
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pr_err("set voltage disp_bias_neg fail, ret = %d\n", ret);
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retval |= ret;
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/* enable regulator */
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ret = regulator_enable(disp_bias_pos);
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if (ret < 0)
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pr_err("enable regulator disp_bias_pos fail, ret = %d\n", ret);
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retval |= ret;
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ret = regulator_enable(disp_bias_neg);
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if (ret < 0)
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pr_err("enable regulator disp_bias_neg fail, ret = %d\n", ret);
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retval |= ret;
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return retval;
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}
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static int lcm_panel_bias_disable(void)
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{
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int ret = 0;
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int retval = 0;
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lcm_panel_bias_regulator_init();
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ret = regulator_disable(disp_bias_neg);
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if (ret < 0)
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pr_err("disable regulator disp_bias_neg fail, ret = %d\n", ret);
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retval |= ret;
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ret = regulator_disable(disp_bias_pos);
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if (ret < 0)
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pr_err("disable regulator disp_bias_pos fail, ret = %d\n", ret);
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retval |= ret;
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return retval;
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}
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#endif
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static void lcm_panel_init(struct lcm *ctx)
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{
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ctx->reset_gpio =
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devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
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if (IS_ERR(ctx->reset_gpio)) {
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dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
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__func__, PTR_ERR(ctx->reset_gpio));
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return;
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}
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gpiod_set_value(ctx->reset_gpio, 0);
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udelay(15 * 1000);
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gpiod_set_value(ctx->reset_gpio, 1);
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udelay(1 * 1000);
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gpiod_set_value(ctx->reset_gpio, 0);
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udelay(10 * 1000);
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gpiod_set_value(ctx->reset_gpio, 1);
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udelay(10 * 1000);
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devm_gpiod_put(ctx->dev, ctx->reset_gpio);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xFF, 0x19, 0x11, 0x01);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xFF, 0x19, 0x11);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xC0, 0x51, 0x00, 0x08, 0x08, 0x51,
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0x04, 0x00);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x92);
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lcm_dcs_write_seq_static(ctx, 0xB3, 0x18, 0x06);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x8B);
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//Panel Driving Mode //0x88
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lcm_dcs_write_seq_static(ctx, 0xC0, 0x88);
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lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
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//1080RGBx2160
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lcm_dcs_write_seq_static(ctx, 0xB3, 0x04, 0x38, 0x08, 0x70);
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//vst
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x84, 0x01, 0x33, 0x34);//vst1
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lcm_dcs_write_seq_static(ctx, 0x00, 0x84);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x00, 0x00);//vst2
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//ckv
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lcm_dcs_write_seq_static(ctx, 0x00, 0xb0);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x85, 0x05, 0x11, 0x09, 0x00,
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0x85, 0x02, 0x22, 0x85, 0x03, 0x33, 0x85, 0x04, 0x00);
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//ckv1 + ckv2 + ckv3 + ckv4
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lcm_dcs_write_seq_static(ctx, 0x00, 0xc0);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
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//ckv5 + ckv6 + ckv7 + ckv8
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lcm_dcs_write_seq_static(ctx, 0x00, 0xd0);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x33, 0x33, 0x00, 0x00, 0xf0);
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//vend
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lcm_dcs_write_seq_static(ctx, 0x00, 0xE0);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x02, 0x01, 0x09, 0x07, 0x00, 0x00);
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//rst
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lcm_dcs_write_seq_static(ctx, 0x00, 0xF0);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x80, 0xff, 0x01, 0x08, 0x07);
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//cic
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lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
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lcm_dcs_write_seq_static(ctx, 0xc2, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
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//pch
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lcm_dcs_write_seq_static(ctx, 0x00, 0xA2);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x00);
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//pwron/pwrof/lvd
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lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
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lcm_dcs_write_seq_static(ctx, 0xcb, 0x00, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0x00, 0xc0);
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lcm_dcs_write_seq_static(ctx, 0xcb, 0x04, 0x04, 0x04, 0xf4, 0x00,
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0x00, 0x04, 0x00, 0x04, 0x00, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0x00, 0xf0);
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lcm_dcs_write_seq_static(ctx, 0xcb, 0xff, 0x30, 0x33, 0x80);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xcd, 0x01);//map_sel
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//ckh
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lcm_dcs_write_seq_static(ctx, 0x00, 0x94);
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lcm_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x01, 0x06, 0x00, 0x01,
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0x15, 0x05);//170728 best for pixel column inv.
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xD8, 0x2B, 0x2B);//GVDDP/GVDDN
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);//For K16, Vcom by OTP
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lcm_dcs_write_seq_static(ctx, 0xD9, 0xAD, 0x00);//VCOM=-0.27V
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE0, 0x01);//Gamma Separate Change
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//170929-2 foc to2.2
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE1, 0x5c, 0x88, 0xdd, 0x13, 0x40,
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0x49, 0x72, 0xb5, 0xe4, 0x55, 0xca, 0xf6, 0x1c, 0x39, 0xa5,
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0x5c, 0x7a, 0xe9, 0x08, 0x9a, 0x24, 0x42, 0x5d, 0x7f, 0xaa,
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0xa7, 0xaa, 0xd9, 0x18, 0xea, 0x3d, 0x60, 0x9b, 0xe3, 0xff,
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0xf4, 0x03);
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//R POS
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE2, 0x47, 0x88, 0xdd, 0x13, 0x40,
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0x49, 0x72, 0xb5, 0xe4, 0x55, 0xca, 0xf6, 0x1c, 0x39, 0xa5,
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0x5c, 0x7a, 0xe9, 0x08, 0x9a, 0x24, 0x42, 0x5d, 0x7f, 0xaa,
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0xa7, 0xaa, 0xd9, 0x18, 0xea, 0x3d, 0x60, 0x9b, 0xe3, 0xff,
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0xc4, 0x03);
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//R NEG
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE3, 0x5c, 0x86, 0xdb, 0x2a, 0x40,
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0x4f, 0x7a, 0xb9, 0xea, 0x55, 0xd1, 0xfb, 0x1f, 0x3d, 0xa5,
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0x5e, 0x7e, 0xed, 0x0a, 0x9a, 0x26, 0x45, 0x60, 0x81, 0xaa,
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0xaa, 0xad, 0xda, 0x17, 0xea, 0x3c, 0x5f, 0x9c, 0xe4, 0xff,
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0xf4, 0x03);
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//G POS
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE4, 0x47, 0x86, 0xdb, 0x2a, 0x40,
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0x4f, 0x7a, 0xb9, 0xea, 0x55, 0xd1, 0xfb, 0x1f, 0x3d, 0xa5,
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0x5e, 0x7e, 0xed, 0x0a, 0x9a, 0x26, 0x45, 0x60, 0x81, 0xaa,
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0xaa, 0xad, 0xda, 0x17, 0xea, 0x3c, 0x5f, 0x9c, 0xe4, 0xff,
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0xc4, 0x03);
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//G NEG
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE5, 0x5c, 0x9f, 0x01, 0x46, 0x50,
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0x6c, 0x92, 0xce, 0xfb, 0x55, 0xe1, 0x08, 0x2a, 0x47, 0xa9,
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0x67, 0x84, 0xf2, 0x0e, 0x9a, 0x2b, 0x49, 0x64, 0x85, 0xaa,
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0xad, 0xb3, 0xe4, 0x20, 0xea, 0x43, 0x66, 0xa0, 0xe6, 0xff,
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0xf4, 0x03);
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//B POS
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lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0xE6, 0x47, 0x9f, 0x01, 0x46, 0x50,
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0x6c, 0x92, 0xce, 0xfb, 0x55, 0xe1, 0x08, 0x2a, 0x47, 0xa9,
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0x67, 0x84, 0xf2, 0x0e, 0x9a, 0x2b, 0x49, 0x64, 0x85, 0xaa,
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0xad, 0xb3, 0xe4, 0x20, 0xea, 0x43, 0x66, 0xa0, 0xe6, 0xff,
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0xc4, 0x03);
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//B NEG
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//Gamma_End--------------------------
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//--------Down Power Consumption-----------------
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lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
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//GAP 8->4 ; AP 8->5, 20160420 For Power Saving Setting Modify
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x45);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x91);
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//SAP 8->A, 20160524 For special pattern horizontal band
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lcm_dcs_write_seq_static(ctx, 0xC5, 0xA0);
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//VGH=8.8V VGH Clamp off
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lcm_dcs_write_seq_static(ctx, 0x00, 0x83);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x1B);
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//VGL 0xAE=-8.6V, 0xC6=-11V
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lcm_dcs_write_seq_static(ctx, 0x00, 0x84);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0xAE);
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//VGHO 0x98=8.5V, 0xAC=10.5V, 0x84=6.5V
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lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x98);
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//VGLO 0xA8=-8.0V, 0xBC=-10V, 0x94=-6V
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lcm_dcs_write_seq_static(ctx, 0x00, 0xA1);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0xA8);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
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lcm_dcs_write_seq_static(ctx, 0xC3, 0x00, 0x00, 0x00, 0x00);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x86);
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lcm_dcs_write_seq_static(ctx, 0xC3, 0x00);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x91);
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lcm_dcs_write_seq_static(ctx, 0xC1, 0x0F);//timeout open
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//Source v-blank output min.
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xC4, 0x01);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x81);
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lcm_dcs_write_seq_static(ctx, 0xC4, 0x02);//Chop 2line/2frame
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lcm_dcs_write_seq_static(ctx, 0x00, 0xB1);
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//Gamma Calibration control disable
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x08);
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//Gamma chop = 2line/2frame
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lcm_dcs_write_seq_static(ctx, 0x00, 0xB2);
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lcm_dcs_write_seq_static(ctx, 0xC5, 0x22);
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lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
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lcm_dcs_write_seq_static(ctx, 0xC3, 0x00, 0x00, 0x00, 0x22,
|
|
0x22, 0x00, 0x22, 0x22);//gnd eq
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
|
|
//VSP_VSN EQ
|
|
lcm_dcs_write_seq_static(ctx, 0xC3, 0x20, 0x20, 0x02, 0x02);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x92);
|
|
//vdd lvdsvdd //EMI improving
|
|
lcm_dcs_write_seq_static(ctx, 0xC5, 0x33);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x81);
|
|
//SSC //EMI improving
|
|
lcm_dcs_write_seq_static(ctx, 0xC1, 0xB0, 0xC0, 0xF0);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x89);
|
|
lcm_dcs_write_seq_static(ctx, 0xc0, 0x10, 0x14);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
|
|
lcm_dcs_write_seq_static(ctx, 0xcb, 0x00, 0x00, 0x0C);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0xC0);
|
|
lcm_dcs_write_seq_static(ctx, 0xcb, 0x05, 0x04, 0x04, 0xf4,
|
|
0x00, 0x00, 0x04, 0x00, 0x04, 0xf3, 0x00, 0x00);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0xF0);
|
|
lcm_dcs_write_seq_static(ctx, 0xcb, 0xff, 0x30, 0x33, 0x80);
|
|
lcm_dcs_write_seq_static(ctx, 0x00, 0x84);
|
|
lcm_dcs_write_seq_static(ctx, 0xF5, 0x9A);//Vcom active region
|
|
//TE with mode 1
|
|
lcm_dcs_write_seq_static(ctx, 0x35, 0x00);
|
|
//PWM BL
|
|
lcm_dcs_write_seq_static(ctx, 0x51, 0xFC);
|
|
lcm_dcs_write_seq_static(ctx, 0x53, 0x24);
|
|
lcm_dcs_write_seq_static(ctx, 0x55, 0x10);
|
|
|
|
lcm_dcs_write_seq_static(ctx, 0x11);
|
|
msleep(200);
|
|
lcm_dcs_write_seq_static(ctx, 0x29);
|
|
|
|
msleep(100);
|
|
}
|
|
|
|
static int lcm_disable(struct drm_panel *panel)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
|
|
if (!ctx->enabled)
|
|
return 0;
|
|
|
|
if (ctx->backlight) {
|
|
ctx->backlight->props.power = FB_BLANK_POWERDOWN;
|
|
backlight_update_status(ctx->backlight);
|
|
}
|
|
|
|
ctx->enabled = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lcm_unprepare(struct drm_panel *panel)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
|
|
if (!ctx->prepared)
|
|
return 0;
|
|
|
|
lcm_dcs_write_seq_static(ctx, 0x28);
|
|
msleep(50);
|
|
lcm_dcs_write_seq_static(ctx, 0x10);
|
|
msleep(150);
|
|
|
|
ctx->error = 0;
|
|
ctx->prepared = false;
|
|
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
|
|
lcm_panel_bias_disable();
|
|
#else
|
|
ctx->reset_gpio =
|
|
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->reset_gpio)) {
|
|
dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
|
|
__func__, PTR_ERR(ctx->reset_gpio));
|
|
return PTR_ERR(ctx->reset_gpio);
|
|
}
|
|
gpiod_set_value(ctx->reset_gpio, 0);
|
|
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
|
|
|
|
|
|
ctx->bias_neg = devm_gpiod_get_index(ctx->dev,
|
|
"bias", 1, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_neg)) {
|
|
dev_err(ctx->dev, "%s: cannot get bias_neg %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_neg));
|
|
return PTR_ERR(ctx->bias_neg);
|
|
}
|
|
gpiod_set_value(ctx->bias_neg, 0);
|
|
devm_gpiod_put(ctx->dev, ctx->bias_neg);
|
|
|
|
udelay(1000);
|
|
|
|
ctx->bias_pos = devm_gpiod_get_index(ctx->dev,
|
|
"bias", 0, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_pos)) {
|
|
dev_err(ctx->dev, "%s: cannot get bias_pos %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_pos));
|
|
return PTR_ERR(ctx->bias_pos);
|
|
}
|
|
gpiod_set_value(ctx->bias_pos, 0);
|
|
devm_gpiod_put(ctx->dev, ctx->bias_pos);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lcm_prepare(struct drm_panel *panel)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
int ret;
|
|
|
|
pr_info("%s\n", __func__);
|
|
if (ctx->prepared)
|
|
return 0;
|
|
|
|
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
|
|
lcm_panel_bias_enable();
|
|
#else
|
|
ctx->bias_pos = devm_gpiod_get_index(ctx->dev,
|
|
"bias", 0, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_pos)) {
|
|
dev_err(ctx->dev, "%s: cannot get bias_pos %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_pos));
|
|
return PTR_ERR(ctx->bias_pos);
|
|
}
|
|
gpiod_set_value(ctx->bias_pos, 1);
|
|
devm_gpiod_put(ctx->dev, ctx->bias_pos);
|
|
|
|
udelay(2000);
|
|
|
|
ctx->bias_neg = devm_gpiod_get_index(ctx->dev,
|
|
"bias", 1, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_neg)) {
|
|
dev_err(ctx->dev, "%s: cannot get bias_neg %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_neg));
|
|
return PTR_ERR(ctx->bias_neg);
|
|
}
|
|
gpiod_set_value(ctx->bias_neg, 1);
|
|
devm_gpiod_put(ctx->dev, ctx->bias_neg);
|
|
#endif
|
|
|
|
lcm_panel_init(ctx);
|
|
|
|
ret = ctx->error;
|
|
if (ret < 0)
|
|
lcm_unprepare(panel);
|
|
|
|
ctx->prepared = true;
|
|
|
|
#if defined(CONFIG_MTK_PANEL_EXT)
|
|
mtk_panel_tch_rst(panel);
|
|
#endif
|
|
#ifdef PANEL_SUPPORT_READBACK
|
|
lcm_panel_get_data(ctx);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int lcm_enable(struct drm_panel *panel)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
|
|
if (ctx->enabled)
|
|
return 0;
|
|
|
|
if (ctx->backlight) {
|
|
ctx->backlight->props.power = FB_BLANK_UNBLANK;
|
|
backlight_update_status(ctx->backlight);
|
|
}
|
|
|
|
ctx->enabled = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define HFP (42)
|
|
#define HSA (10)
|
|
#define HBP (42)
|
|
#define VFP (10)
|
|
#define VSA (3)
|
|
#define VBP (15)
|
|
#define VAC (2160)
|
|
#define HAC (1080)
|
|
static u32 fake_heigh = 2160;
|
|
static u32 fake_width = 1080;
|
|
static bool need_fake_resolution;
|
|
|
|
static struct drm_display_mode default_mode = {
|
|
.clock = 154122,
|
|
.hdisplay = HAC,
|
|
.hsync_start = HAC + HFP,
|
|
.hsync_end = HAC + HFP + HSA,
|
|
.htotal = HAC + HFP + HSA + HBP,
|
|
.vdisplay = VAC,
|
|
.vsync_start = VAC + VFP,
|
|
.vsync_end = VAC + VFP + VSA,
|
|
.vtotal = VAC + VFP + VSA + VBP,
|
|
.vrefresh = 60,
|
|
};
|
|
|
|
#if defined(CONFIG_MTK_PANEL_EXT)
|
|
static int panel_ext_reset(struct drm_panel *panel, int on)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
|
|
ctx->reset_gpio =
|
|
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->reset_gpio)) {
|
|
dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
|
|
__func__, PTR_ERR(ctx->reset_gpio));
|
|
return PTR_ERR(ctx->reset_gpio);
|
|
}
|
|
gpiod_set_value(ctx->reset_gpio, on);
|
|
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int panel_ata_check(struct drm_panel *panel)
|
|
{
|
|
struct lcm *ctx = panel_to_lcm(panel);
|
|
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
unsigned char data[3] = {0x00, 0x00, 0x00};
|
|
unsigned char id[3] = {0x00, 0x00, 0x00};
|
|
ssize_t ret;
|
|
|
|
ret = mipi_dsi_dcs_read(dsi, 0x4, data, 3);
|
|
if (ret < 0) {
|
|
pr_err("%s error\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
DDPINFO("ATA read data %x %x %x\n", data[0], data[1], data[2]);
|
|
|
|
if (data[0] == id[0] &&
|
|
data[1] == id[1] &&
|
|
data[2] == id[2])
|
|
return 1;
|
|
|
|
DDPINFO("ATA expect read data is %x %x %x\n",
|
|
id[0], id[1], id[2]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lcm_setbacklight_cmdq(void *dsi, dcs_write_gce cb,
|
|
void *handle, unsigned int level)
|
|
{
|
|
char bl_tb0[] = {0x51, 0xFF};
|
|
|
|
bl_tb0[1] = level;
|
|
|
|
if (!cb)
|
|
return -1;
|
|
|
|
cb(dsi, handle, bl_tb0, ARRAY_SIZE(bl_tb0));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lcm_get_virtual_heigh(void)
|
|
{
|
|
return VAC;
|
|
}
|
|
|
|
static int lcm_get_virtual_width(void)
|
|
{
|
|
return HAC;
|
|
}
|
|
|
|
static struct mtk_panel_params ext_params = {
|
|
.pll_clk = 490,
|
|
.vfp_low_power = 750,
|
|
.cust_esd_check = 0,
|
|
.esd_check_enable = 0,
|
|
.lcm_esd_check_table[0] = {
|
|
.cmd = 0x0A,
|
|
.count = 1,
|
|
.para_list[0] = 0x9D,
|
|
},
|
|
.phy_timcon = {
|
|
.clk_hs_post = 36,
|
|
},
|
|
};
|
|
|
|
static struct mtk_panel_funcs ext_funcs = {
|
|
.reset = panel_ext_reset,
|
|
.set_backlight_cmdq = lcm_setbacklight_cmdq,
|
|
.ata_check = panel_ata_check,
|
|
.get_virtual_heigh = lcm_get_virtual_heigh,
|
|
.get_virtual_width = lcm_get_virtual_width,
|
|
};
|
|
#endif
|
|
|
|
struct panel_desc {
|
|
const struct drm_display_mode *modes;
|
|
unsigned int num_modes;
|
|
|
|
unsigned int bpc;
|
|
|
|
struct {
|
|
unsigned int width;
|
|
unsigned int height;
|
|
} size;
|
|
|
|
struct {
|
|
unsigned int prepare;
|
|
unsigned int enable;
|
|
unsigned int disable;
|
|
unsigned int unprepare;
|
|
} delay;
|
|
};
|
|
|
|
static void change_drm_disp_mode_params(struct drm_display_mode *mode)
|
|
{
|
|
if (fake_heigh > 0 && fake_heigh < VAC) {
|
|
mode->vdisplay = fake_heigh;
|
|
mode->vsync_start = fake_heigh + VFP;
|
|
mode->vsync_end = fake_heigh + VFP + VSA;
|
|
mode->vtotal = fake_heigh + VFP + VSA + VBP;
|
|
}
|
|
if (fake_width > 0 && fake_width < HAC) {
|
|
mode->hdisplay = fake_width;
|
|
mode->hsync_start = fake_width + HFP;
|
|
mode->hsync_end = fake_width + HFP + HSA;
|
|
mode->htotal = fake_width + HFP + HSA + HBP;
|
|
}
|
|
}
|
|
|
|
static int lcm_get_modes(struct drm_panel *panel)
|
|
{
|
|
struct drm_display_mode *mode;
|
|
|
|
if (need_fake_resolution)
|
|
change_drm_disp_mode_params(&default_mode);
|
|
mode = drm_mode_duplicate(panel->drm, &default_mode);
|
|
if (!mode) {
|
|
dev_err(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
|
|
default_mode.hdisplay, default_mode.vdisplay,
|
|
default_mode.vrefresh);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
drm_mode_set_name(mode);
|
|
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
|
drm_mode_probed_add(panel->connector, mode);
|
|
|
|
panel->connector->display_info.width_mm = 64;
|
|
panel->connector->display_info.height_mm = 129;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static const struct drm_panel_funcs lcm_drm_funcs = {
|
|
.disable = lcm_disable,
|
|
.unprepare = lcm_unprepare,
|
|
.prepare = lcm_prepare,
|
|
.enable = lcm_enable,
|
|
.get_modes = lcm_get_modes,
|
|
};
|
|
|
|
static void check_is_need_fake_resolution(struct device *dev)
|
|
{
|
|
unsigned int ret = 0;
|
|
|
|
ret = of_property_read_u32(dev->of_node, "fake_heigh", &fake_heigh);
|
|
if (ret)
|
|
need_fake_resolution = false;
|
|
ret = of_property_read_u32(dev->of_node, "fake_width", &fake_width);
|
|
if (ret)
|
|
need_fake_resolution = false;
|
|
if (fake_heigh > 0 && fake_heigh < VAC)
|
|
need_fake_resolution = true;
|
|
if (fake_width > 0 && fake_width < HAC)
|
|
need_fake_resolution = true;
|
|
}
|
|
|
|
static int lcm_probe(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct device *dev = &dsi->dev;
|
|
struct lcm *ctx;
|
|
struct device_node *backlight;
|
|
int ret;
|
|
struct device_node *dsi_node, *remote_node = NULL, *endpoint = NULL;
|
|
|
|
dsi_node = of_get_parent(dev->of_node);
|
|
if (dsi_node) {
|
|
endpoint = of_graph_get_next_endpoint(dsi_node, NULL);
|
|
if (endpoint) {
|
|
remote_node = of_graph_get_remote_port_parent(endpoint);
|
|
if (!remote_node) {
|
|
pr_info("No panel connected,skip probe lcm\n");
|
|
return -ENODEV;
|
|
}
|
|
pr_info("device node name:%s\n", remote_node->name);
|
|
}
|
|
}
|
|
if (remote_node != dev->of_node) {
|
|
pr_info("%s+ skip probe due to not current lcm\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ctx = devm_kzalloc(dev, sizeof(struct lcm), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
mipi_dsi_set_drvdata(dsi, ctx);
|
|
|
|
ctx->dev = dev;
|
|
dsi->lanes = 4;
|
|
dsi->format = MIPI_DSI_FMT_RGB888;
|
|
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE
|
|
| MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET
|
|
| MIPI_DSI_CLOCK_NON_CONTINUOUS;
|
|
|
|
backlight = of_parse_phandle(dev->of_node, "backlight", 0);
|
|
if (backlight) {
|
|
ctx->backlight = of_find_backlight_by_node(backlight);
|
|
of_node_put(backlight);
|
|
|
|
if (!ctx->backlight)
|
|
return -EPROBE_DEFER;
|
|
}
|
|
|
|
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->reset_gpio)) {
|
|
dev_err(dev, "%s: cannot get reset-gpios %ld\n",
|
|
__func__, PTR_ERR(ctx->reset_gpio));
|
|
return PTR_ERR(ctx->reset_gpio);
|
|
}
|
|
devm_gpiod_put(dev, ctx->reset_gpio);
|
|
|
|
ctx->bias_pos = devm_gpiod_get_index(dev, "bias", 0, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_pos)) {
|
|
dev_err(dev, "%s: cannot get bias-pos 0 %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_pos));
|
|
return PTR_ERR(ctx->bias_pos);
|
|
}
|
|
devm_gpiod_put(dev, ctx->bias_pos);
|
|
|
|
ctx->bias_neg = devm_gpiod_get_index(dev, "bias", 1, GPIOD_OUT_HIGH);
|
|
if (IS_ERR(ctx->bias_neg)) {
|
|
dev_err(dev, "%s: cannot get bias-neg 1 %ld\n",
|
|
__func__, PTR_ERR(ctx->bias_neg));
|
|
return PTR_ERR(ctx->bias_neg);
|
|
}
|
|
devm_gpiod_put(dev, ctx->bias_neg);
|
|
|
|
ctx->prepared = true;
|
|
ctx->enabled = true;
|
|
|
|
drm_panel_init(&ctx->panel);
|
|
ctx->panel.dev = dev;
|
|
ctx->panel.funcs = &lcm_drm_funcs;
|
|
|
|
ret = drm_panel_add(&ctx->panel);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_attach(dsi);
|
|
if (ret < 0)
|
|
drm_panel_remove(&ctx->panel);
|
|
|
|
#if defined(CONFIG_MTK_PANEL_EXT)
|
|
mtk_panel_tch_handle_reg(&ctx->panel);
|
|
ret = mtk_panel_ext_create(dev, &ext_params, &ext_funcs, &ctx->panel);
|
|
if (ret < 0)
|
|
return ret;
|
|
#endif
|
|
check_is_need_fake_resolution(dev);
|
|
pr_info("%s-\n", __func__);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int lcm_remove(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct lcm *ctx = mipi_dsi_get_drvdata(dsi);
|
|
|
|
mipi_dsi_detach(dsi);
|
|
drm_panel_remove(&ctx->panel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id lcm_of_match[] = {
|
|
{ .compatible = "otm1911a,auo,vdo", },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, lcm_of_match);
|
|
|
|
static struct mipi_dsi_driver lcm_driver = {
|
|
.probe = lcm_probe,
|
|
.remove = lcm_remove,
|
|
.driver = {
|
|
.name = "panel-otm1911a-auo-vdo",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = lcm_of_match,
|
|
},
|
|
};
|
|
|
|
module_mipi_dsi_driver(lcm_driver);
|
|
|
|
MODULE_AUTHOR("Yi-Lun Wang <Yi-Lun.Wang@mediatek.com>");
|
|
MODULE_DESCRIPTION("otm1911a VDO LCD Panel Driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
|