diff options
-rw-r--r-- | drivers/video/Kconfig | 10 | ||||
-rw-r--r-- | drivers/video/Makefile | 1 | ||||
-rw-r--r-- | drivers/video/mot-panel.c | 308 |
3 files changed, 319 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index d343dfb061b..6c323be3e32 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -529,6 +529,16 @@ config VIDEO_LCD_HIMAX_HX8394 Say Y here if you want to enable support for Himax HX8394 dsi 4dl panel. +config VIDEO_LCD_MOT + tristate "Atrix 4G and Droid X2 540x960 DSI video mode panel" + depends on PANEL && BACKLIGHT + select VIDEO_MIPI_DSI + help + Say Y here if you want to enable support for the LCD panel module for + Motorola Atrix 4G or Droid X2. Exact panel vendor and model are + unknown. The panel has a 540x960 resolution and uses 24 bit RGB per + pixel. + config VIDEO_LCD_ORISETECH_OTM8009A bool "OTM8009A DSI LCD panel support" select VIDEO_MIPI_DSI diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 74df5711d18..2145afa2686 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -59,6 +59,7 @@ obj-$(CONFIG_VIDEO_LCD_ENDEAVORU) += endeavoru-panel.o obj-$(CONFIG_VIDEO_LCD_HIMAX_HX8394) += himax-hx8394.o obj-$(CONFIG_VIDEO_LCD_HITACHI_TX18D42VM) += hitachi_tx18d42vm_lcd.o obj-$(CONFIG_VIDEO_LCD_LG_LD070WX3) += lg-ld070wx3.o +obj-$(CONFIG_VIDEO_LCD_MOT) += mot-panel.o obj-$(CONFIG_VIDEO_LCD_ORISETECH_OTM8009A) += orisetech_otm8009a.o obj-$(CONFIG_VIDEO_LCD_RAYDIUM_RM68200) += raydium-rm68200.o obj-$(CONFIG_VIDEO_LCD_RENESAS_R61307) += renesas-r61307.o diff --git a/drivers/video/mot-panel.c b/drivers/video/mot-panel.c new file mode 100644 index 00000000000..a9114957867 --- /dev/null +++ b/drivers/video/mot-panel.c @@ -0,0 +1,308 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Motorola ATRIX 4G and DROID X2 DSI panel driver + * Exact manufacturer and model unknown + * + * Copyright (c) 2025 Svyatoslav Ryhel <clamor95@gmail.com> + */ + +#include <backlight.h> +#include <dm.h> +#include <panel.h> +#include <log.h> +#include <misc.h> +#include <mipi_display.h> +#include <mipi_dsi.h> +#include <asm/gpio.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <power/regulator.h> + +struct mot_panel_priv { + struct udevice *vdd; + struct udevice *vddio; + + struct udevice *backlight; + + struct gpio_desc reset_gpio; +}; + +#define dsi_generic_write_seq(dsi, cmd, seq...) do { \ + static const u8 b[] = { cmd, seq }; \ + int ret; \ + ret = mipi_dsi_dcs_write_buffer(dsi, b, ARRAY_SIZE(b)); \ + if (ret < 0) \ + return ret; \ + } while (0) + +static struct display_timing default_timing = { + .pixelclock.typ = 38250000, + .hactive.typ = 540, + .hfront_porch.typ = 32, + .hback_porch.typ = 32, + .hsync_len.typ = 16, + .vactive.typ = 960, + .vfront_porch.typ = 12, + .vback_porch.typ = 12, + .vsync_len.typ = 8, +}; + +static int mot_es2(struct mipi_dsi_device *dsi) +{ + int ret; + + dsi_generic_write_seq(dsi, 0x55, 0x01); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + log_debug("%s: failed to exit sleep mode: %d\n", __func__, ret); + return ret; + } + mdelay(120); + + dsi_generic_write_seq(dsi, 0xf4, 0x00, 0xbb, 0x46, 0x53, 0x0c, 0x49, + 0x74, 0x29, 0x12, 0x15, 0x2f, 0x2f, 0x04); + dsi_generic_write_seq(dsi, 0xf8, 0x4b, 0x04, 0x10, 0x1a, 0x2c, 0x2c, + 0x2c, 0x2c, 0x14, 0x12); + + dsi_generic_write_seq(dsi, 0xb5, 0x03, 0x7f, 0x00, 0x80, 0xc7, 0x00); + dsi_generic_write_seq(dsi, 0xb7, 0x66, 0xf6, 0x46, 0x9f, 0x90, 0x99, + 0xff, 0x80, 0x6d, 0x01); + + /* Gamma R */ + dsi_generic_write_seq(dsi, 0xf9, 0x04); + dsi_generic_write_seq(dsi, 0xfa, 0x00, 0x2f, 0x30, 0x12, 0x0e, 0x0c, + 0x22, 0x27, 0x31, 0x2e, 0x07, 0x0f); + dsi_generic_write_seq(dsi, 0xfb, 0x00, 0x2f, 0x30, 0x12, 0x0e, 0x0c, + 0x22, 0x27, 0x31, 0x2e, 0x07, 0x0f); + + /* Gamma G */ + dsi_generic_write_seq(dsi, 0xf9, 0x02); + dsi_generic_write_seq(dsi, 0xfa, 0x00, 0x2f, 0x37, 0x15, 0x15, 0x11, + 0x1f, 0x25, 0x2d, 0x2a, 0x05, 0x0f); + dsi_generic_write_seq(dsi, 0xfb, 0x00, 0x2f, 0x37, 0x15, 0x15, 0x11, + 0x1f, 0x25, 0x2d, 0x2a, 0x05, 0x0f); + + /* Gamma B */ + dsi_generic_write_seq(dsi, 0xf9, 0x01); + dsi_generic_write_seq(dsi, 0xfa, 0x00, 0x2f, 0x3f, 0x16, 0x1f, 0x15, + 0x1f, 0x25, 0x2d, 0x2b, 0x06, 0x0b); + dsi_generic_write_seq(dsi, 0xfb, 0x00, 0x2f, 0x3f, 0x16, 0x1f, 0x15, + 0x1f, 0x25, 0x2d, 0x2b, 0x06, 0x0b); + + /* Gamma W */ + dsi_generic_write_seq(dsi, 0xf9, 0x20); + dsi_generic_write_seq(dsi, 0xfa, 0x00, 0x2f, 0x34, 0x15, 0x1a, 0x11, + 0x1f, 0x23, 0x2d, 0x29, 0x02, 0x08); + dsi_generic_write_seq(dsi, 0xfb, 0x00, 0x2f, 0x34, 0x15, 0x1a, 0x11, + 0x1f, 0x23, 0x2d, 0x29, 0x02, 0x08); + + dsi_generic_write_seq(dsi, 0x53, 0x2c); + dsi_generic_write_seq(dsi, 0x35, 0x00); + + return 0; +} + +static int __maybe_unused mot_es4(struct mipi_dsi_device *dsi) +{ + int ret; + + dsi_generic_write_seq(dsi, 0xd2, 0x04, 0x53); + dsi_generic_write_seq(dsi, 0xd2, 0x05, 0x53); + dsi_generic_write_seq(dsi, 0x55, 0x01); + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + log_debug("%s: failed to exit sleep mode: %d\n", __func__, ret); + return ret; + } + mdelay(120); + + dsi_generic_write_seq(dsi, 0xb5, 0x03, 0x7f, 0x0a, 0x80, 0xff, 0x00); + dsi_generic_write_seq(dsi, 0xb7, 0x7a, 0xf7, 0x4d, 0x91, 0x90, 0xb3, + 0xff, 0x80, 0x6d, 0x01); + dsi_generic_write_seq(dsi, 0xf4, 0x00, 0xbb, 0x46, 0x53, 0x0c, 0x49, + 0x74, 0x29, 0x12, 0x15, 0x37, 0x37, 0x04); + dsi_generic_write_seq(dsi, 0xf8, 0x0a, 0x04, 0x10, 0x2a, 0x35, 0x35, + 0x35, 0x35, 0x21, 0x1a); + + /* Gamma R */ + dsi_generic_write_seq(dsi, 0xf9, 0x04); + dsi_generic_write_seq(dsi, 0xfa, 0x08, 0x1c, 0x1b, 0x0f, 0x0f, 0x0a, + 0x1e, 0x22, 0x27, 0x26, 0x07, 0x0d); + dsi_generic_write_seq(dsi, 0xfb, 0x08, 0x3c, 0x27, 0x0f, 0x0f, 0x0a, + 0x1e, 0x26, 0x31, 0x2f, 0x07, 0x0b); + + /* Gamma G */ + dsi_generic_write_seq(dsi, 0xf9, 0x02); + dsi_generic_write_seq(dsi, 0xfa, 0x30, 0x14, 0x0f, 0x00, 0x06, 0x02, + 0x1e, 0x22, 0x27, 0x27, 0x08, 0x10); + dsi_generic_write_seq(dsi, 0xfb, 0x30, 0x35, 0x0f, 0x00, 0x0a, 0x02, + 0x1c, 0x23, 0x31, 0x2f, 0x08, 0x0e); + + /* Gamma B */ + dsi_generic_write_seq(dsi, 0xf9, 0x01); + dsi_generic_write_seq(dsi, 0xfa, 0x12, 0x1b, 0x26, 0x0e, 0x12, 0x0b, + 0x1e, 0x22, 0x27, 0x27, 0x06, 0x0c); + dsi_generic_write_seq(dsi, 0xfb, 0x12, 0x3b, 0x2c, 0x12, 0x12, 0x0e, + 0x1e, 0x26, 0x31, 0x2f, 0x06, 0x0d); + + /* Gamma W */ + dsi_generic_write_seq(dsi, 0xf9, 0x20); + dsi_generic_write_seq(dsi, 0xfa, 0x37, 0x1b, 0x09, 0x01, 0x06, 0x04, + 0x19, 0x19, 0x22, 0x24, 0x04, 0x15); + dsi_generic_write_seq(dsi, 0xfb, 0x37, 0x3b, 0x17, 0x01, 0x0a, 0x04, + 0x19, 0x1d, 0x2c, 0x2c, 0x04, 0x13); + + dsi_generic_write_seq(dsi, 0x53, 0x2c); + dsi_generic_write_seq(dsi, 0x35, 0x00); + dsi_generic_write_seq(dsi, 0xc3, 0x01, 0x4e); + + return 0; +} + +static int mot_panel_enable_backlight(struct udevice *dev) +{ + struct mipi_dsi_panel_plat *plat = dev_get_plat(dev); + struct mipi_dsi_device *dsi = plat->device; + int ret; + + dsi_generic_write_seq(dsi, 0xf0, 0x5a, 0x5a); + dsi_generic_write_seq(dsi, 0xf1, 0x5a, 0x5a); + dsi_generic_write_seq(dsi, 0xd0, 0x8e); + + ret = mot_es2(dsi); + if (ret) + return ret; + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + log_debug("%s: failed to set display on: %d\n", __func__, ret); + return ret; + } + mdelay(20); + + return 0; +} + +static int mot_panel_set_backlight(struct udevice *dev, int percent) +{ + struct mot_panel_priv *priv = dev_get_priv(dev); + int ret; + + ret = backlight_enable(priv->backlight); + if (ret) + return ret; + + mdelay(5); + + return backlight_set_brightness(priv->backlight, percent); +} + +static int mot_panel_timings(struct udevice *dev, struct display_timing *timing) +{ + memcpy(timing, &default_timing, sizeof(*timing)); + return 0; +} + +static int mot_panel_of_to_plat(struct udevice *dev) +{ + struct mot_panel_priv *priv = dev_get_priv(dev); + int ret; + + ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev, + "backlight", &priv->backlight); + if (ret) { + log_debug("%s: cannot get backlight: ret = %d\n", __func__, ret); + return ret; + } + + ret = device_get_supply_regulator(dev, "vdd-supply", &priv->vdd); + if (ret) { + log_debug("%s: cannot get vdd-supply: ret = %d\n", __func__, ret); + return ret; + } + + ret = device_get_supply_regulator(dev, "vddio-supply", &priv->vddio); + if (ret) { + log_debug("%s: cannot get vddio-supply: ret = %d\n", __func__, ret); + return ret; + } + + ret = gpio_request_by_name(dev, "reset-gpios", 0, + &priv->reset_gpio, GPIOD_IS_OUT); + if (ret) { + log_debug("%s: could not decode reser-gpios (%d)\n", __func__, ret); + return ret; + } + + return 0; +} + +static int mot_panel_hw_init(struct udevice *dev) +{ + struct mot_panel_priv *priv = dev_get_priv(dev); + int ret; + + ret = regulator_set_enable_if_allowed(priv->vddio, 1); + if (ret) { + log_debug("%s: enabling vddio-supply failed (%d)\n", __func__, ret); + return ret; + } + + ret = regulator_set_enable_if_allowed(priv->vdd, 1); + if (ret) { + log_debug("%s: enabling vdd-supply failed (%d)\n", __func__, ret); + return ret; + } + + ret = dm_gpio_set_value(&priv->reset_gpio, 1); + if (ret) { + log_debug("%s: error entering reset (%d)\n", __func__, ret); + return ret; + } + mdelay(50); + + ret = dm_gpio_set_value(&priv->reset_gpio, 0); + if (ret) { + log_debug("%s: error exiting reset (%d)\n", __func__, ret); + return ret; + } + mdelay(10); + + return 0; +} + +static int mot_panel_probe(struct udevice *dev) +{ + struct mipi_dsi_panel_plat *plat = dev_get_plat(dev); + + /* fill characteristics of DSI data link */ + plat->lanes = 2; + plat->format = MIPI_DSI_FMT_RGB888; + plat->mode_flags = MIPI_DSI_MODE_LPM; + + return mot_panel_hw_init(dev); +} + +static const struct panel_ops mot_panel_ops = { + .enable_backlight = mot_panel_enable_backlight, + .set_backlight = mot_panel_set_backlight, + .get_display_timing = mot_panel_timings, +}; + +static const struct udevice_id mot_panel_ids[] = { + { .compatible = "motorola,mot-panel" }, + { } +}; + +U_BOOT_DRIVER(mot_panel) = { + .name = "mot_panel", + .id = UCLASS_PANEL, + .of_match = mot_panel_ids, + .ops = &mot_panel_ops, + .of_to_plat = mot_panel_of_to_plat, + .probe = mot_panel_probe, + .plat_auto = sizeof(struct mipi_dsi_panel_plat), + .priv_auto = sizeof(struct mot_panel_priv), +}; |