drm/panel: add lincolntech lcd197 support
Add support for the Lincoln Technologies LCD197 1080x1920 DSI panel. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20240626142212.1341556-4-jbrunet@baylibre.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240626142212.1341556-4-jbrunet@baylibre.com
This commit is contained in:
Jerome Brunet
Neil Armstrong
parent
3ebc76c424
commit
c5207ed463
@ -328,6 +328,17 @@ config DRM_PANEL_LEADTEK_LTK500HD1829
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24 bit RGB per pixel. It provides a MIPI DSI interface to
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the host and has a built-in LED backlight.
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config DRM_PANEL_LINCOLNTECH_LCD197
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tristate "Lincoln Technologies lcd197 panel"
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depends on OF
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y here if you want to enable support for lincolntech lcd197
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TFT-LCD modules. The panel has a 1080x1920 resolution and uses
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24 bit RGB per pixel. It provides a MIPI DSI interface to
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the host.
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config DRM_PANEL_LG_LB035Q02
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tristate "LG LB035Q024573 RGB panel"
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depends on GPIOLIB && OF && SPI
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@ -33,6 +33,7 @@ obj-$(CONFIG_DRM_PANEL_KHADAS_TS050) += panel-khadas-ts050.o
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obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
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obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o
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obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o
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obj-$(CONFIG_DRM_PANEL_LINCOLNTECH_LCD197) += panel-lincolntech-lcd197.o
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obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o
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obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
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obj-$(CONFIG_DRM_PANEL_LG_SW43408) += panel-lg-sw43408.o
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262
drivers/gpu/drm/panel/panel-lincolntech-lcd197.c
Normal file
262
drivers/gpu/drm/panel/panel-lincolntech-lcd197.c
Normal file
@ -0,0 +1,262 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2024 BayLibre, SAS
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* Author: Jerome Brunet <jbrunet@baylibre.com>
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*/
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <drm/drm_device.h>
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#include <drm/drm_probe_helper.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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struct lincoln_lcd197_panel {
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struct drm_panel panel;
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struct mipi_dsi_device *dsi;
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struct regulator *supply;
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struct gpio_desc *enable_gpio;
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struct gpio_desc *reset_gpio;
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};
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static inline
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struct lincoln_lcd197_panel *to_lincoln_lcd197_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct lincoln_lcd197_panel, panel);
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}
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static int lincoln_lcd197_panel_prepare(struct drm_panel *panel)
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{
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struct lincoln_lcd197_panel *lcd = to_lincoln_lcd197_panel(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = lcd->dsi };
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int err;
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gpiod_set_value_cansleep(lcd->enable_gpio, 0);
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err = regulator_enable(lcd->supply);
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if (err < 0)
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return err;
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gpiod_set_value_cansleep(lcd->enable_gpio, 1);
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usleep_range(1000, 2000);
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gpiod_set_value_cansleep(lcd->reset_gpio, 1);
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usleep_range(5000, 6000);
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gpiod_set_value_cansleep(lcd->reset_gpio, 0);
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msleep(50);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xb9, 0xff, 0x83, 0x99);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd2, 0x55);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xb1, 0x02, 0x04, 0x70, 0x90, 0x01,
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0x32, 0x33, 0x11, 0x11, 0x4d, 0x57, 0x56, 0x73,
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0x02, 0x02);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xb2, 0x00, 0x80, 0x80, 0xae, 0x0a,
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0x0e, 0x75, 0x11, 0x00, 0x00, 0x00);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xb4, 0x00, 0xff, 0x04, 0xa4, 0x02,
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0xa0, 0x00, 0x00, 0x10, 0x00, 0x00, 0x02, 0x00,
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0x24, 0x02, 0x04, 0x0a, 0x21, 0x03, 0x00, 0x00,
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0x08, 0xa6, 0x88, 0x04, 0xa4, 0x02, 0xa0, 0x00,
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0x00, 0x10, 0x00, 0x00, 0x02, 0x00, 0x24, 0x02,
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0x04, 0x0a, 0x00, 0x00, 0x08, 0xa6, 0x00, 0x08,
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0x11);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd3, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x18, 0x18, 0x32, 0x10, 0x09, 0x00, 0x09,
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0x32, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x11, 0x00, 0x02, 0x02, 0x03, 0x00,
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0x00, 0x00, 0x0a, 0x40);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd5, 0x18, 0x18, 0x18, 0x18, 0x21,
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0x20, 0x18, 0x18, 0x19, 0x19, 0x19, 0x19, 0x18,
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0x18, 0x18, 0x18, 0x03, 0x02, 0x01, 0x00, 0x2f,
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0x2f, 0x30, 0x30, 0x31, 0x31, 0x18, 0x18, 0x18,
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0x18, 0x18, 0x18);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd6, 0x18, 0x18, 0x18, 0x18, 0x20,
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0x21, 0x19, 0x19, 0x18, 0x18, 0x19, 0x19, 0x18,
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0x18, 0x18, 0x18, 0x00, 0x01, 0x02, 0x03, 0x2f,
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0x2f, 0x30, 0x30, 0x31, 0x31, 0x18, 0x18, 0x18,
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0x18, 0x18, 0x18);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xbd, 0x01);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd8, 0x0a, 0xbe, 0xfa, 0xa0, 0x0a,
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0xbe, 0xfa, 0xa0);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd8, 0x0f, 0xff, 0xff, 0xe0, 0x0f,
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0xff, 0xff, 0xe0);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xbd, 0x02);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xd8, 0x0f, 0xff, 0xff, 0xe0, 0x0f,
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0xff, 0xff, 0xe0);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xe0, 0x01, 0x11, 0x1c, 0x17, 0x39,
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0x43, 0x54, 0x51, 0x5a, 0x64, 0x6c, 0x74, 0x7a,
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0x83, 0x8d, 0x92, 0x99, 0xa4, 0xa9, 0xb4, 0xaa,
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0xba, 0xbe, 0x63, 0x5e, 0x69, 0x73, 0x01, 0x11,
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0x1c, 0x17, 0x39, 0x43, 0x54, 0x51, 0x5a, 0x64,
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0x6c, 0x74, 0x7a, 0x83, 0x8d, 0x92, 0x99, 0xa4,
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0xa7, 0xb2, 0xa9, 0xba, 0xbe, 0x63, 0x5e, 0x69,
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0x73);
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mipi_dsi_usleep_range(&ctx, 200, 300);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xb6, 0x92, 0x92);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xcc, 0x00);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xbf, 0x40, 0x41, 0x50, 0x49);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xc6, 0xff, 0xf9);
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mipi_dsi_dcs_write_seq_multi(&ctx, 0xc0, 0x25, 0x5a);
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mipi_dsi_dcs_write_seq_multi(&ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x02);
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mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
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mipi_dsi_msleep(&ctx, 120);
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if (ctx.accum_err) {
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gpiod_set_value_cansleep(lcd->enable_gpio, 0);
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gpiod_set_value_cansleep(lcd->reset_gpio, 1);
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regulator_disable(lcd->supply);
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}
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return ctx.accum_err;
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}
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static int lincoln_lcd197_panel_unprepare(struct drm_panel *panel)
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{
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struct lincoln_lcd197_panel *lcd = to_lincoln_lcd197_panel(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = lcd->dsi };
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mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
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mipi_dsi_usleep_range(&ctx, 5000, 6000);
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gpiod_set_value_cansleep(lcd->enable_gpio, 0);
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gpiod_set_value_cansleep(lcd->reset_gpio, 1);
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regulator_disable(lcd->supply);
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return ctx.accum_err;
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}
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static int lincoln_lcd197_panel_enable(struct drm_panel *panel)
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{
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struct lincoln_lcd197_panel *lcd = to_lincoln_lcd197_panel(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = lcd->dsi };
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mipi_dsi_dcs_set_display_on_multi(&ctx);
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mipi_dsi_msleep(&ctx, 20);
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return ctx.accum_err;
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}
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static int lincoln_lcd197_panel_disable(struct drm_panel *panel)
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{
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struct lincoln_lcd197_panel *lcd = to_lincoln_lcd197_panel(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = lcd->dsi };
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mipi_dsi_dcs_set_display_off_multi(&ctx);
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mipi_dsi_msleep(&ctx, 50);
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return ctx.accum_err;
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}
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static const struct drm_display_mode lcd197_mode = {
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.clock = 154002,
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.hdisplay = 1080,
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.hsync_start = 1080 + 20,
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.hsync_end = 1080 + 20 + 6,
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.htotal = 1080 + 204,
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.vdisplay = 1920,
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.vsync_start = 1920 + 4,
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.vsync_end = 1920 + 4 + 4,
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.vtotal = 1920 + 79,
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.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
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.width_mm = 79,
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.height_mm = 125,
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.type = DRM_MODE_TYPE_DRIVER,
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};
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static int lincoln_lcd197_panel_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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return drm_connector_helper_get_modes_fixed(connector, &lcd197_mode);
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}
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static const struct drm_panel_funcs lincoln_lcd197_panel_funcs = {
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.prepare = lincoln_lcd197_panel_prepare,
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.unprepare = lincoln_lcd197_panel_unprepare,
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.enable = lincoln_lcd197_panel_enable,
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.disable = lincoln_lcd197_panel_disable,
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.get_modes = lincoln_lcd197_panel_get_modes,
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};
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static int lincoln_lcd197_panel_probe(struct mipi_dsi_device *dsi)
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{
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struct lincoln_lcd197_panel *lcd;
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struct device *dev = &dsi->dev;
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int err;
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dsi->lanes = 4;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = (MIPI_DSI_MODE_VIDEO |
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MIPI_DSI_MODE_VIDEO_BURST);
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lcd = devm_kzalloc(&dsi->dev, sizeof(*lcd), GFP_KERNEL);
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if (!lcd)
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return -ENOMEM;
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mipi_dsi_set_drvdata(dsi, lcd);
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lcd->dsi = dsi;
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lcd->supply = devm_regulator_get(dev, "power");
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if (IS_ERR(lcd->supply))
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return dev_err_probe(dev, PTR_ERR(lcd->supply),
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"failed to get power supply");
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lcd->enable_gpio = devm_gpiod_get(dev, "enable",
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GPIOD_OUT_HIGH);
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if (IS_ERR(lcd->enable_gpio))
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return dev_err_probe(dev, PTR_ERR(lcd->enable_gpio),
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"failed to get enable gpio");
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lcd->reset_gpio = devm_gpiod_get(dev, "reset",
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GPIOD_OUT_HIGH);
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if (IS_ERR(lcd->reset_gpio))
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return dev_err_probe(dev, PTR_ERR(lcd->reset_gpio),
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"failed to get reset gpio");
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drm_panel_init(&lcd->panel, dev,
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&lincoln_lcd197_panel_funcs, DRM_MODE_CONNECTOR_DSI);
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err = drm_panel_of_backlight(&lcd->panel);
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if (err)
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return err;
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drm_panel_add(&lcd->panel);
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err = mipi_dsi_attach(dsi);
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if (err)
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drm_panel_remove(&lcd->panel);
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return err;
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}
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static void lincoln_lcd197_panel_remove(struct mipi_dsi_device *dsi)
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{
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struct lincoln_lcd197_panel *lcd = mipi_dsi_get_drvdata(dsi);
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int err;
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err = mipi_dsi_detach(dsi);
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if (err < 0)
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dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
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drm_panel_remove(&lcd->panel);
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}
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static const struct of_device_id lincoln_lcd197_of_match[] = {
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{ .compatible = "lincolntech,lcd197", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, lincoln_lcd197_of_match);
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static struct mipi_dsi_driver lincoln_lcd197_panel_driver = {
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.driver = {
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.name = "panel-lincolntech-lcd197",
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.of_match_table = lincoln_lcd197_of_match,
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},
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.probe = lincoln_lcd197_panel_probe,
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.remove = lincoln_lcd197_panel_remove,
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};
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module_mipi_dsi_driver(lincoln_lcd197_panel_driver);
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MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
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MODULE_DESCRIPTION("Lincoln Technologies LCD197 panel driver");
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MODULE_LICENSE("GPL");
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