[2/2] drm/panel: add Ilitek ILI9806E panel driver

Message ID	20240625133317.2869038-3-mwalle@kernel.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <dri-devel-bounces@lists.freedesktop.org> From: Michael Walle <mwalle@kernel.org> To: Neil Armstrong <neil.armstrong@linaro.org>, Jessica Zhang <quic_jesszhan@quicinc.com>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, Michael Walle <mwalle@kernel.org> Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Gunnar Dibbern <gunnar.dibbern@lht.dlh.de> Subject: [PATCH 2/2] drm/panel: add Ilitek ILI9806E panel driver Date: Tue, 25 Jun 2024 15:33:17 +0200 Message-Id: <20240625133317.2869038-3-mwalle@kernel.org> In-Reply-To: <20240625133317.2869038-1-mwalle@kernel.org> References: <20240625133317.2869038-1-mwalle@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: list Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
Series	drm/panel: initial support for the Ortustech COM35H3P70ULC \| expand [0/2] drm/panel: initial support for the Ortustech COM35H3P70ULC [1/2] dt-bindings: display: panel: add Ilitek ili9806e panel controller [2/2] drm/panel: add Ilitek ILI9806E panel driver

diff --git a/MAINTAINERS b/MAINTAINERS index 77008faf25ee..74b538c6b8bd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7002,6 +7002,11 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/ilitek,ili9805.yaml F: drivers/gpu/drm/panel/panel-ilitek-ili9805.c +DRM DRIVER FOR ILITEK ILI9806E PANELS +M: Michael Walle <mwalle@kernel.org> +S: Maintained +F: drivers/gpu/drm/panel/panel-ilitek-ili9806e.c + DRM DRIVER FOR JADARD JD9365DA-H3 MIPI-DSI LCD PANELS M: Jagan Teki <jagan@edgeble.ai> S: Maintained diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index bf4eadfe21cb..904a928bc60e 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -205,6 +205,15 @@ config DRM_PANEL_ILITEK_ILI9805 Say Y if you want to enable support for panels based on the Ilitek ILI9805 controller. +config DRM_PANEL_ILITEK_ILI9806E + tristate "Ilitek ILI9806E-based panels" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y if you want to enable support for panels based on the + Ilitek ILI9806E controller. + config DRM_PANEL_ILITEK_ILI9881C tristate "Ilitek ILI9881C-based panels" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 051b75b3df7b..12ce91416849 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9341) += panel-ilitek-ili9341.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9805) += panel-ilitek-ili9805.o +obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9806E) += panel-ilitek-ili9806e.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9882T) += panel-ilitek-ili9882t.o obj-$(CONFIG_DRM_PANEL_INNOLUX_EJ030NA) += panel-innolux-ej030na.o diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c b/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c new file mode 100644 index 000000000000..c3942eda668d --- /dev/null +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9806e.c @@ -0,0 +1,413 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/errno.h> +#include <linux/fb.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/property.h> + +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> + +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +#include <video/mipi_display.h> + +struct panel_desc { + const struct drm_display_mode *display_mode; + unsigned long mode_flags; + enum mipi_dsi_pixel_format format; + unsigned int lanes; + void (*init_sequence)(struct mipi_dsi_multi_context *ctx); +}; + +struct ili9806e_panel { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct gpio_desc *reset_gpio; + struct regulator_bulk_data supplies[2]; + const struct panel_desc *desc; + enum drm_panel_orientation orientation; +}; + +static const char * const regulator_names[] = { + "vdd", + "vccio", +}; + +static inline struct ili9806e_panel *to_ili9806e_panel(struct drm_panel *panel) +{ + return container_of(panel, struct ili9806e_panel, panel); +} + +static int ili9806e_power_on(struct ili9806e_panel *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + int ret; + + gpiod_set_value(ctx->reset_gpio, 1); + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) { + dev_err(&dsi->dev, "regulator bulk enable failed: %d\n", ret); + return ret; + } + + usleep_range(10000, 20000); + gpiod_set_value(ctx->reset_gpio, 0); + usleep_range(10000, 20000); + + return 0; +} + +static int ili9806e_power_off(struct ili9806e_panel *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + int ret; + + gpiod_set_value(ctx->reset_gpio, 1); + + ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret) + dev_err(&dsi->dev, "regulator bulk disable failed: %d\n", ret); + + return ret; +} + +static int ili9806e_on(struct ili9806e_panel *ili9806e) +{ + struct mipi_dsi_multi_context ctx = { .dsi = ili9806e->dsi }; + + if (ili9806e->desc->init_sequence) + ili9806e->desc->init_sequence(&ctx); + + mipi_dsi_dcs_exit_sleep_mode_multi(&ctx); + mipi_dsi_msleep(&ctx, 120); + mipi_dsi_dcs_set_display_on_multi(&ctx); + + return ctx.accum_err; +} + +static int ili9806e_off(struct ili9806e_panel *panel) +{ + struct mipi_dsi_multi_context ctx = { .dsi = panel->dsi }; + + mipi_dsi_dcs_set_display_off_multi(&ctx); + mipi_dsi_dcs_enter_sleep_mode_multi(&ctx); + mipi_dsi_msleep(&ctx, 120); + + return ctx.accum_err; +} + +static int ili9806e_prepare(struct drm_panel *panel) +{ + struct ili9806e_panel *ctx = to_ili9806e_panel(panel); + int ret; + + ret = ili9806e_power_on(ctx); + if (ret < 0) + return ret; + + ret = ili9806e_on(ctx); + if (ret < 0) { + ili9806e_power_off(ctx); + return ret; + } + + return 0; +} + +static int ili9806e_unprepare(struct drm_panel *panel) +{ + struct ili9806e_panel *ctx = to_ili9806e_panel(panel); + struct mipi_dsi_device *dsi = ctx->dsi; + int ret; + + ili9806e_off(ctx); + + ret = ili9806e_power_off(ctx); + if (ret < 0) + dev_err(&dsi->dev, "power off failed: %d\n", ret); + + return ret; +} + +static int ili9806e_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct ili9806e_panel *ctx = to_ili9806e_panel(panel); + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, ctx->desc->display_mode); + if (!mode) + return -ENOMEM; + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static enum drm_panel_orientation ili9806e_get_orientation(struct drm_panel *panel) +{ + struct ili9806e_panel *ctx = to_ili9806e_panel(panel); + + return ctx->orientation; +} + +static const struct drm_panel_funcs ili9806e_funcs = { + .prepare = ili9806e_prepare, + .unprepare = ili9806e_unprepare, + .get_modes = ili9806e_get_modes, + .get_orientation = ili9806e_get_orientation, +}; + +static int ili9806e_dsi_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct ili9806e_panel *ctx; + int i, ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->desc = device_get_match_data(dev); + + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) + ctx->supplies[i].supply = regulator_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) + return ret; + + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), + "Failed to get reset-gpios\n"); + + mipi_dsi_set_drvdata(dsi, ctx); + ctx->dsi = dsi; + + dsi->mode_flags = ctx->desc->mode_flags; + dsi->format = ctx->desc->format; + dsi->lanes = ctx->desc->lanes; + + drm_panel_init(&ctx->panel, dev, &ili9806e_funcs, + DRM_MODE_CONNECTOR_DSI); + + ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation); + if (ret) + return dev_err_probe(dev, ret, "Failed to get orientation\n"); + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return dev_err_probe(dev, ret, "Failed to get backlight\n"); + + ctx->panel.prepare_prev_first = true; + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err_probe(dev, ret, "Failed to attach to DSI host\n"); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static void ili9806e_dsi_remove(struct mipi_dsi_device *dsi) +{ + struct ili9806e_panel *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); +} + +static void com35h3p70ulc_init(struct mipi_dsi_multi_context *ctx) +{ + /* Switch to page 1 */ + mipi_dsi_dcs_write_seq_multi(ctx, 0xff, 0xff, 0x98, 0x06, 0x04, 0x01); + /* Interface Settings */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x08, 0x18); + mipi_dsi_dcs_write_seq_multi(ctx, 0x21, 0x01); + /* Panel Settings */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x30, 0x03); + mipi_dsi_dcs_write_seq_multi(ctx, 0x31, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x60, 0x0d); + mipi_dsi_dcs_write_seq_multi(ctx, 0x61, 0x08); + mipi_dsi_dcs_write_seq_multi(ctx, 0x62, 0x08); + mipi_dsi_dcs_write_seq_multi(ctx, 0x63, 0x09); + /* Power Control */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x40, 0x30); + mipi_dsi_dcs_write_seq_multi(ctx, 0x41, 0x44); + mipi_dsi_dcs_write_seq_multi(ctx, 0x42, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x43, 0x89); + mipi_dsi_dcs_write_seq_multi(ctx, 0x44, 0x8e); + mipi_dsi_dcs_write_seq_multi(ctx, 0x45, 0xd9); + mipi_dsi_dcs_write_seq_multi(ctx, 0x46, 0x33); + mipi_dsi_dcs_write_seq_multi(ctx, 0x47, 0x33); + mipi_dsi_dcs_write_seq_multi(ctx, 0x50, 0x90); + mipi_dsi_dcs_write_seq_multi(ctx, 0x51, 0x90); + mipi_dsi_dcs_write_seq_multi(ctx, 0x56, 0x00); + /* Gamma Settings */ + mipi_dsi_dcs_write_seq_multi(ctx, 0xa0, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa1, 0x0c); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa2, 0x13); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa3, 0x0f); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa4, 0x0a); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa5, 0x0d); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa6, 0x0c); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa7, 0x0b); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa8, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xa9, 0x06); + mipi_dsi_dcs_write_seq_multi(ctx, 0xaa, 0x15); + mipi_dsi_dcs_write_seq_multi(ctx, 0xab, 0x07); + mipi_dsi_dcs_write_seq_multi(ctx, 0xac, 0x12); + mipi_dsi_dcs_write_seq_multi(ctx, 0xad, 0x28); + mipi_dsi_dcs_write_seq_multi(ctx, 0xae, 0x20); + mipi_dsi_dcs_write_seq_multi(ctx, 0xaf, 0x14); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc0, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc1, 0x0c); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc2, 0x13); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc3, 0x0f); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc4, 0x09); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc5, 0x0d); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc6, 0x0c); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc7, 0x0b); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc8, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0xc9, 0x06); + mipi_dsi_dcs_write_seq_multi(ctx, 0xca, 0x14); + mipi_dsi_dcs_write_seq_multi(ctx, 0xcb, 0x07); + mipi_dsi_dcs_write_seq_multi(ctx, 0xcc, 0x0f); + mipi_dsi_dcs_write_seq_multi(ctx, 0xcd, 0x21); + mipi_dsi_dcs_write_seq_multi(ctx, 0xce, 0x17); + mipi_dsi_dcs_write_seq_multi(ctx, 0xcf, 0x0a); + + /* Switch to page 7 */ + mipi_dsi_dcs_write_seq_multi(ctx, 0xff, 0xff, 0x98, 0x06, 0x04, 0x07); + /* Power Control */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x06, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x18, 0x1d); + mipi_dsi_dcs_write_seq_multi(ctx, 0x17, 0x32); + + /* Switch to page 6 */ + mipi_dsi_dcs_write_seq_multi(ctx, 0xff, 0xff, 0x98, 0x06, 0x04, 0x06); + /* GIP settings */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x00, 0x20); + mipi_dsi_dcs_write_seq_multi(ctx, 0x01, 0x02); + mipi_dsi_dcs_write_seq_multi(ctx, 0x02, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x03, 0x02); + mipi_dsi_dcs_write_seq_multi(ctx, 0x04, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x05, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x06, 0x88); + mipi_dsi_dcs_write_seq_multi(ctx, 0x07, 0x04); + mipi_dsi_dcs_write_seq_multi(ctx, 0x08, 0x03); + mipi_dsi_dcs_write_seq_multi(ctx, 0x09, 0x80); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0a, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0b, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0c, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0d, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0e, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x0f, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x10, 0x55); + mipi_dsi_dcs_write_seq_multi(ctx, 0x11, 0x50); + mipi_dsi_dcs_write_seq_multi(ctx, 0x12, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x13, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x14, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x15, 0x43); + mipi_dsi_dcs_write_seq_multi(ctx, 0x16, 0x0b); + mipi_dsi_dcs_write_seq_multi(ctx, 0x17, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x18, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x19, 0x10); + mipi_dsi_dcs_write_seq_multi(ctx, 0x1a, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x1b, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x1c, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x1d, 0x00); + mipi_dsi_dcs_write_seq_multi(ctx, 0x20, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x21, 0x23); + mipi_dsi_dcs_write_seq_multi(ctx, 0x22, 0x45); + mipi_dsi_dcs_write_seq_multi(ctx, 0x23, 0x67); + mipi_dsi_dcs_write_seq_multi(ctx, 0x24, 0x01); + mipi_dsi_dcs_write_seq_multi(ctx, 0x25, 0x23); + mipi_dsi_dcs_write_seq_multi(ctx, 0x26, 0x45); + mipi_dsi_dcs_write_seq_multi(ctx, 0x27, 0x67); + mipi_dsi_dcs_write_seq_multi(ctx, 0x30, 0x02); + mipi_dsi_dcs_write_seq_multi(ctx, 0x31, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x32, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x33, 0x88); + mipi_dsi_dcs_write_seq_multi(ctx, 0x34, 0xaa); + mipi_dsi_dcs_write_seq_multi(ctx, 0x35, 0xbb); + mipi_dsi_dcs_write_seq_multi(ctx, 0x36, 0x66); + mipi_dsi_dcs_write_seq_multi(ctx, 0x37, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x38, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x39, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3a, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3b, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3c, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3d, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3e, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x3f, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x40, 0x22); + mipi_dsi_dcs_write_seq_multi(ctx, 0x53, 0x12); + + /* Switch to page 0 */ + mipi_dsi_dcs_write_seq_multi(ctx, 0xff, 0xff, 0x98, 0x06, 0x04, 0x00); + /* Interface Pixel format */ + mipi_dsi_dcs_write_seq_multi(ctx, 0x3a, 0x60); +}; + +static const struct drm_display_mode com35h3p70ulc_default_mode = { + .clock = 22400, + .hdisplay = 480, + .hsync_start = 480 + 16, + .hsync_end = 480 + 16 + 16, + .htotal = 480 + 16 + 16 + 16, + .vdisplay = 640, + .vsync_start = 640 + 52, + .vsync_end = 640 + 52 + 4, + .vtotal = 640 + 52 + 4 + 16, + .width_mm = 53, + .height_mm = 71, +}; + +static const struct panel_desc com35h3p70ulc_desc = { + .init_sequence = com35h3p70ulc_init, + .display_mode = &com35h3p70ulc_default_mode, + .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | + MIPI_DSI_MODE_LPM, + .format = MIPI_DSI_FMT_RGB888, + .lanes = 2, +}; + +static const struct of_device_id ili9806e_of_match[] = { + { .compatible = "ortustech,com35h3p70ulc", .data = &com35h3p70ulc_desc }, + { } +}; +MODULE_DEVICE_TABLE(of, ili9806e_of_match); + +static struct mipi_dsi_driver ili9806e_dsi_driver = { + .driver = { + .name = "ili9806e-dsi", + .of_match_table = ili9806e_of_match, + }, + .probe = ili9806e_dsi_probe, + .remove = ili9806e_dsi_remove, +}; +module_mipi_dsi_driver(ili9806e_dsi_driver); + +MODULE_AUTHOR("Gunnar Dibbern <gunnar.dibbern@lht.dlh.de>"); +MODULE_AUTHOR("Michael Walle <mwalle@kernel.org>"); +MODULE_DESCRIPTION("Ilitek ILI9806E Controller Driver"); +MODULE_LICENSE("GPL");

[2/2] drm/panel: add Ilitek ILI9806E panel driver

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