diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0386-drm-panel-Add-panel-driver-for-TDO-Y17B-based-panels.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0386-drm-panel-Add-panel-driver-for-TDO-Y17B-based-panels.patch | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0386-drm-panel-Add-panel-driver-for-TDO-Y17B-based-panels.patch b/target/linux/bcm27xx/patches-6.1/950-0386-drm-panel-Add-panel-driver-for-TDO-Y17B-based-panels.patch deleted file mode 100644 index 9950e78e5d..0000000000 --- a/target/linux/bcm27xx/patches-6.1/950-0386-drm-panel-Add-panel-driver-for-TDO-Y17B-based-panels.patch +++ /dev/null @@ -1,329 +0,0 @@ -From b74aec9ca440eb1ed2f48a3cc4ef471cd9c9d623 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.com> -Date: Wed, 26 Jan 2022 16:02:31 +0000 -Subject: [PATCH] drm/panel: Add panel driver for TDO Y17B based panels - -The Top DisplayOptoelectronics (TDO) T17B driver chip is used -in the TL040HDS20CT panel (found in the Pimoroni HyperPixel4 -Square display) and potentially other displays. -The driver chip supports SPI for configuration and DPI -video data. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> ---- - drivers/gpu/drm/panel/Kconfig | 11 + - drivers/gpu/drm/panel/Makefile | 1 + - drivers/gpu/drm/panel/panel-tdo-y17p.c | 277 +++++++++++++++++++++++++ - 3 files changed, 289 insertions(+) - create mode 100644 drivers/gpu/drm/panel/panel-tdo-y17p.c - ---- a/drivers/gpu/drm/panel/Kconfig -+++ b/drivers/gpu/drm/panel/Kconfig -@@ -669,6 +669,17 @@ config DRM_PANEL_TDO_TL070WSH30 - 24 bit RGB per pixel. It provides a MIPI DSI interface to - the host, a built-in LED backlight and touch controller. - -+config DRM_PANEL_TPO_Y17P -+ tristate "TDO Y17P-based panels" -+ depends on OF && SPI -+ select DRM_KMS_HELPER -+ depends on DRM_GEM_CMA_HELPER -+ depends on BACKLIGHT_CLASS_DEVICE -+ select DRM_MIPI_DBI -+ help -+ Say Y if you want to enable support for panels based on the -+ TDO Y17P controller. -+ - config DRM_PANEL_TPO_TD028TTEC1 - tristate "Toppoly (TPO) TD028TTEC1 panel driver" - depends on OF && SPI ---- a/drivers/gpu/drm/panel/Makefile -+++ b/drivers/gpu/drm/panel/Makefile -@@ -67,6 +67,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) - obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o - obj-$(CONFIG_DRM_PANEL_SONY_TULIP_TRULY_NT35521) += panel-sony-tulip-truly-nt35521.o - obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o -+obj-$(CONFIG_DRM_PANEL_TPO_Y17P) += panel-tdo-y17p.o - obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o - obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o - obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o ---- /dev/null -+++ b/drivers/gpu/drm/panel/panel-tdo-y17p.c -@@ -0,0 +1,277 @@ -+// SPDX-License-Identifier: GPL-2.0-only -+/* -+ * TDO Y17P TFT LCD drm_panel driver. -+ * -+ * SPI configured DPI display controller -+ * Copyright (C) 2022 Raspberry Pi Ltd -+ * -+ * Derived from drivers/drm/gpu/panel/panel-sitronix-st7789v.c -+ * Copyright (C) 2017 Free Electrons -+ */ -+ -+#include <drm/drm_modes.h> -+#include <drm/drm_panel.h> -+ -+#include <linux/bitops.h> -+#include <linux/gpio/consumer.h> -+#include <linux/media-bus-format.h> -+#include <linux/module.h> -+#include <linux/of_device.h> -+#include <linux/regmap.h> -+#include <linux/regulator/consumer.h> -+#include <linux/spi/spi.h> -+ -+#include <video/mipi_display.h> -+#include <video/of_videomode.h> -+#include <video/videomode.h> -+ -+struct tdo_y17p { -+ struct drm_panel panel; -+ struct spi_device *spi; -+ struct gpio_desc *reset; -+ struct regulator *power; -+ u32 bus_format; -+}; -+ -+static const u16 panel_init[] = { -+ 0x0ff, 0x1ff, 0x198, 0x106, 0x104, 0x101, 0x008, 0x110, -+ 0x021, 0x109, 0x030, 0x102, 0x031, 0x100, 0x040, 0x110, -+ 0x041, 0x155, 0x042, 0x102, 0x043, 0x109, 0x044, 0x107, -+ 0x050, 0x178, 0x051, 0x178, 0x052, 0x100, 0x053, 0x16d, -+ 0x060, 0x107, 0x061, 0x100, 0x062, 0x108, 0x063, 0x100, -+ 0x0a0, 0x100, 0x0a1, 0x107, 0x0a2, 0x10c, 0x0a3, 0x10b, -+ 0x0a4, 0x103, 0x0a5, 0x107, 0x0a6, 0x106, 0x0a7, 0x104, -+ 0x0a8, 0x108, 0x0a9, 0x10c, 0x0aa, 0x113, 0x0ab, 0x106, -+ 0x0ac, 0x10d, 0x0ad, 0x119, 0x0ae, 0x110, 0x0af, 0x100, -+ 0x0c0, 0x100, 0x0c1, 0x107, 0x0c2, 0x10c, 0x0c3, 0x10b, -+ 0x0c4, 0x103, 0x0c5, 0x107, 0x0c6, 0x107, 0x0c7, 0x104, -+ 0x0c8, 0x108, 0x0c9, 0x10c, 0x0ca, 0x113, 0x0cb, 0x106, -+ 0x0cc, 0x10d, 0x0cd, 0x118, 0x0ce, 0x110, 0x0cf, 0x100, -+ 0x0ff, 0x1ff, 0x198, 0x106, 0x104, 0x106, 0x000, 0x120, -+ 0x001, 0x10a, 0x002, 0x100, 0x003, 0x100, 0x004, 0x101, -+ 0x005, 0x101, 0x006, 0x198, 0x007, 0x106, 0x008, 0x101, -+ 0x009, 0x180, 0x00a, 0x100, 0x00b, 0x100, 0x00c, 0x101, -+ 0x00d, 0x101, 0x00e, 0x100, 0x00f, 0x100, 0x010, 0x1f0, -+ 0x011, 0x1f4, 0x012, 0x101, 0x013, 0x100, 0x014, 0x100, -+ 0x015, 0x1c0, 0x016, 0x108, 0x017, 0x100, 0x018, 0x100, -+ 0x019, 0x100, 0x01a, 0x100, 0x01b, 0x100, 0x01c, 0x100, -+ 0x01d, 0x100, 0x020, 0x101, 0x021, 0x123, 0x022, 0x145, -+ 0x023, 0x167, 0x024, 0x101, 0x025, 0x123, 0x026, 0x145, -+ 0x027, 0x167, 0x030, 0x111, 0x031, 0x111, 0x032, 0x100, -+ 0x033, 0x1ee, 0x034, 0x1ff, 0x035, 0x1bb, 0x036, 0x1aa, -+ 0x037, 0x1dd, 0x038, 0x1cc, 0x039, 0x166, 0x03a, 0x177, -+ 0x03b, 0x122, 0x03c, 0x122, 0x03d, 0x122, 0x03e, 0x122, -+ 0x03f, 0x122, 0x040, 0x122, 0x052, 0x110, 0x053, 0x110, -+ 0x0ff, 0x1ff, 0x198, 0x106, 0x104, 0x107, 0x018, 0x11d, -+ 0x017, 0x122, 0x002, 0x177, 0x026, 0x1b2, 0x0e1, 0x179, -+ 0x0ff, 0x1ff, 0x198, 0x106, 0x104, 0x100, 0x03a, 0x160, -+ 0x035, 0x100, 0x011, 0x100, -+}; -+ -+#define NUM_INIT_REGS ARRAY_SIZE(panel_init) -+ -+static inline struct tdo_y17p *panel_to_tdo_y17p(struct drm_panel *panel) -+{ -+ return container_of(panel, struct tdo_y17p, panel); -+} -+ -+static int tdo_y17p_write_msg(struct tdo_y17p *ctx, const u16 *msg, unsigned int len) -+{ -+ struct spi_transfer xfer = { }; -+ struct spi_message spi; -+ -+ spi_message_init(&spi); -+ -+ xfer.tx_buf = msg; -+ xfer.bits_per_word = 9; -+ xfer.len = sizeof(u16) * len; -+ -+ spi_message_add_tail(&xfer, &spi); -+ return spi_sync(ctx->spi, &spi); -+} -+ -+static const struct drm_display_mode tdo_y17pe_720x720_mode = { -+ .clock = 36720, -+ .hdisplay = 720, -+ .hsync_start = 720 + 20, -+ .hsync_end = 720 + 20 + 20, -+ .htotal = 720 + 20 + 20 + 40, -+ .vdisplay = 720, -+ .vsync_start = 720 + 15, -+ .vsync_end = 720 + 15 + 15, -+ .vtotal = 720 + 15 + 15 + 15, -+ .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC, -+}; -+ -+static int tdo_y17p_get_modes(struct drm_panel *panel, -+ struct drm_connector *connector) -+{ -+ struct tdo_y17p *ctx = panel_to_tdo_y17p(panel); -+ struct drm_display_mode *mode; -+ -+ mode = drm_mode_duplicate(connector->dev, &tdo_y17pe_720x720_mode); -+ if (!mode) { -+ dev_err(panel->dev, "failed to add mode %ux%ux@%u\n", -+ tdo_y17pe_720x720_mode.hdisplay, -+ tdo_y17pe_720x720_mode.vdisplay, -+ drm_mode_vrefresh(&tdo_y17pe_720x720_mode)); -+ return -ENOMEM; -+ } -+ -+ drm_mode_set_name(mode); -+ -+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; -+ drm_mode_probed_add(connector, mode); -+ -+ connector->display_info.width_mm = 72; -+ connector->display_info.height_mm = 72; -+ drm_display_info_set_bus_formats(&connector->display_info, -+ &ctx->bus_format, 1); -+ connector->display_info.bus_flags = 0; -+ -+ return 1; -+} -+ -+static int tdo_y17p_prepare(struct drm_panel *panel) -+{ -+ struct tdo_y17p *ctx = panel_to_tdo_y17p(panel); -+ int ret; -+ -+ ret = regulator_enable(ctx->power); -+ if (ret) -+ return ret; -+ -+ ret = tdo_y17p_write_msg(ctx, panel_init, NUM_INIT_REGS); -+ -+ msleep(120); -+ -+ return ret; -+} -+ -+static int tdo_y17p_enable(struct drm_panel *panel) -+{ -+ struct tdo_y17p *ctx = panel_to_tdo_y17p(panel); -+ const u16 msg[] = { MIPI_DCS_SET_DISPLAY_ON }; -+ int ret; -+ -+ ret = tdo_y17p_write_msg(ctx, msg, ARRAY_SIZE(msg)); -+ -+ return ret; -+} -+ -+static int tdo_y17p_disable(struct drm_panel *panel) -+{ -+ struct tdo_y17p *ctx = panel_to_tdo_y17p(panel); -+ const u16 msg[] = { MIPI_DCS_SET_DISPLAY_OFF }; -+ int ret; -+ -+ ret = tdo_y17p_write_msg(ctx, msg, ARRAY_SIZE(msg)); -+ -+ return ret; -+} -+ -+static int tdo_y17p_unprepare(struct drm_panel *panel) -+{ -+ struct tdo_y17p *ctx = panel_to_tdo_y17p(panel); -+ const u16 msg[] = { MIPI_DCS_ENTER_SLEEP_MODE }; -+ int ret; -+ -+ ret = tdo_y17p_write_msg(ctx, msg, ARRAY_SIZE(msg)); -+ -+ return ret; -+} -+ -+static const struct drm_panel_funcs tdo_y17p_drm_funcs = { -+ .disable = tdo_y17p_disable, -+ .enable = tdo_y17p_enable, -+ .get_modes = tdo_y17p_get_modes, -+ .prepare = tdo_y17p_prepare, -+ .unprepare = tdo_y17p_unprepare, -+}; -+ -+static const struct of_device_id tdo_y17p_of_match[] = { -+ { .compatible = "tdo,tl040hds20ct", -+ .data = (void *)MEDIA_BUS_FMT_BGR888_1X24, -+ }, { -+ .compatible = "pimoroni,hyperpixel4square", -+ .data = (void *)MEDIA_BUS_FMT_BGR666_1X24_CPADHI, -+ }, { -+ .compatible = "tdo,y17p", -+ .data = (void *)MEDIA_BUS_FMT_BGR888_1X24, -+ }, { -+ /* sentinel */ -+ } -+}; -+MODULE_DEVICE_TABLE(of, tdo_y17p_of_match); -+ -+static int tdo_y17p_probe(struct spi_device *spi) -+{ -+ const struct of_device_id *id; -+ struct tdo_y17p *ctx; -+ int ret; -+ -+ ctx = devm_kzalloc(&spi->dev, sizeof(*ctx), GFP_KERNEL); -+ if (!ctx) -+ return -ENOMEM; -+ -+ id = of_match_node(tdo_y17p_of_match, spi->dev.of_node); -+ if (!id) -+ return -ENODEV; -+ -+ ctx->bus_format = (u32)(uintptr_t)id->data; -+ -+ spi_set_drvdata(spi, ctx); -+ ctx->spi = spi; -+ -+ drm_panel_init(&ctx->panel, &spi->dev, &tdo_y17p_drm_funcs, -+ DRM_MODE_CONNECTOR_DPI); -+ -+ ctx->power = devm_regulator_get(&spi->dev, "power"); -+ if (IS_ERR(ctx->power)) -+ return PTR_ERR(ctx->power); -+ -+ ctx->reset = devm_gpiod_get_optional(&spi->dev, "reset", GPIOD_OUT_LOW); -+ if (IS_ERR(ctx->reset)) { -+ dev_err(&spi->dev, "Couldn't get our reset line\n"); -+ return PTR_ERR(ctx->reset); -+ } -+ -+ ret = drm_panel_of_backlight(&ctx->panel); -+ if (ret) -+ return ret; -+ -+ drm_panel_add(&ctx->panel); -+ -+ return 0; -+} -+ -+static void tdo_y17p_remove(struct spi_device *spi) -+{ -+ struct tdo_y17p *ctx = spi_get_drvdata(spi); -+ -+ drm_panel_remove(&ctx->panel); -+} -+ -+static const struct spi_device_id tdo_y17p_ids[] = { -+ { "tl040hds20ct", 0 }, -+ { "hyperpixel4square", 0 }, -+ { "y17p", 0 }, -+ { /* sentinel */ } -+}; -+ -+MODULE_DEVICE_TABLE(spi, tdo_y17p_ids); -+ -+static struct spi_driver tdo_y17p_driver = { -+ .probe = tdo_y17p_probe, -+ .remove = tdo_y17p_remove, -+ .driver = { -+ .name = "tdo_y17p", -+ .of_match_table = tdo_y17p_of_match, -+ }, -+ .id_table = tdo_y17p_ids, -+}; -+module_spi_driver(tdo_y17p_driver); -+ -+MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.com>"); -+MODULE_DESCRIPTION("TDO Y17P LCD panel driver"); -+MODULE_LICENSE("GPL v2"); |