From nobody Fri Feb 13 11:13:27 2026 Received: from mail.mainlining.org (mainlining.org [94.241.141.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9483E80046; Mon, 15 Apr 2024 16:11:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=94.241.141.152 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713197481; cv=none; b=L9Xx53W5bw6PLwJKJTWYgaI4+sXAYXe1a3D/yF/mI887swLUJwxkYb4Z8XKUXmXUb7F42f/Pf5RhNshqnuY7Hv5dYQRIoIPfwD64Y3x8k1cWYp8yXwopYEeqBMzrfrpJDzs4mN8b2Gry6pdkfHxK0iUv7WAb6NVucZhbbZZMGKw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713197481; c=relaxed/simple; bh=f146FF+WI/o35KCCFTLt43epAmIWYp+fcu5cws731ic=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=FNw/hyUJ71PmNk4LpSMBbvG6W/eYWTn+/PLXQ4ROPCMcFNAiuI4A/MCSQR3ghTnPkdct3QkNtqgzoguDE3uX8BEkB6dtm9+hxhVBvinEkIXWpq4aZP+jiD4MGQrHzLAnv7yVeoN0PJGg/AVVws6u70U+jp0hmyyyrkq6DtDx/os= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mainlining.org; spf=pass smtp.mailfrom=mainlining.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b=UD4u7RiQ; arc=none smtp.client-ip=94.241.141.152 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mainlining.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mainlining.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mainlining.org header.i=@mainlining.org header.b="UD4u7RiQ" Received: from david-ryuzu.localdomain (ipbcc3a836.dynamic.kabel-deutschland.de [188.195.168.54]) by mail.mainlining.org (Postfix) with ESMTPSA id 8A558E20AF; Mon, 15 Apr 2024 16:11:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mainlining.org; s=psm; t=1713197471; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Iz36PtCFN7oUoO4KwjFHJcJtW5hVGeHAgAE4GO3+PDw=; b=UD4u7RiQOEN6AyjqMdJ9Y3HL9OUCj1KS33y5rLrub/eSkGCFsDECd3tiHkGoTNyRp52yF9 XKkCP1oeOy8k5FS1wWs3+sl8PGRZGslGbKmSlEbNSxw87H/1yTwWS/cC3Lkh6t64VDsv7Z 39cpiCLrutoKfWxKEnUO1GFF/SQUeGioCor7g3rEnU6Q6WvV1ECWMILavheahfSFok6vFC usJWgdg62DXHLq3wtvOJ5iTjwzEztrv4c0eyYvgmeU3OtxHQM3gUAAomBS2haPOb0xL3uZ jRYdA25nUpZEi1Da9L9pMr005h0EWQqH8Oxypyle8srbwvmUE/IysK0HqAsciA== From: David Wronek Date: Mon, 15 Apr 2024 18:10:42 +0200 Subject: [PATCH v2 2/2] drm/panel: Add driver for EDO RM69380 OLED panel Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240415-raydium-rm69380-driver-v2-2-524216461306@mainlining.org> References: <20240415-raydium-rm69380-driver-v2-0-524216461306@mainlining.org> In-Reply-To: <20240415-raydium-rm69380-driver-v2-0-524216461306@mainlining.org> To: Neil Armstrong , Jessica Zhang , Sam Ravnborg , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marijn Suijten , Konrad Dybcio Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, David Wronek X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713197467; l=12303; i=david@mainlining.org; s=20240121; h=from:subject:message-id; bh=f146FF+WI/o35KCCFTLt43epAmIWYp+fcu5cws731ic=; b=8FHvipBkbhmJJlNTQkm1FNqBx+tQz0CZTVKYLiyik8Oc8pAseHIVDxgtm0Vva82kBcel35nAX 4+ERID+oKm3AVubBUd/xJE+6dpg3AdxP6J7x+eCcf3vsrPaCQvu/+4H X-Developer-Key: i=david@mainlining.org; a=ed25519; pk=PJIYyFK3VrK6x+9W6ih8IGSJ5dxRXHiYay+gG1qQzqs= Add support for the 2560x1600@90Hz OLED panel by EDO bundled with a Raydium RM69380 controller, as found on the Lenovo Xiaoxin Pad Pro 2021. Signed-off-by: David Wronek --- drivers/gpu/drm/panel/Kconfig | 14 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-raydium-rm69380.c | 366 ++++++++++++++++++++++= ++++ 3 files changed, 381 insertions(+) diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 154f5bf82980..5b3eeb93b1a2 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -542,6 +542,20 @@ config DRM_PANEL_RAYDIUM_RM692E5 Say Y here if you want to enable support for Raydium RM692E5-based display panels, such as the one found in the Fairphone 5 smartphone. =20 +config DRM_PANEL_RAYDIUM_RM69380 + tristate "Raydium RM69380-based DSI panel" + depends on BACKLIGHT_CLASS_DEVICE + depends on DRM_DISPLAY_DP_HELPER + depends on DRM_DISPLAY_HELPER + depends on DRM_MIPI_DSI + depends on OF + help + Say Y here if you want to enable support for Raydium RM69380-based + display panels. + + This panel controller can be found in the Lenovo Xiaoxin Pad Pro 2021 + in combination with an EDO OLED panel. + config DRM_PANEL_RONBO_RB070D30 tristate "Ronbo Electronics RB070D30 panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 24a02655d726..e2a2807d4ef0 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) +=3D pane= l-raspberrypi-touchscreen obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) +=3D panel-raydium-rm67191.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) +=3D panel-raydium-rm68200.o obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) +=3D panel-raydium-rm692e5.o +obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) +=3D panel-raydium-rm69380.o obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) +=3D panel-ronbo-rb070d30.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) +=3D panel-samsung-atna33xc20.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) +=3D panel-samsung-db7430.o diff --git a/drivers/gpu/drm/panel/panel-raydium-rm69380.c b/drivers/gpu/dr= m/panel/panel-raydium-rm69380.c new file mode 100644 index 000000000000..253b9a1c2800 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-raydium-rm69380.c @@ -0,0 +1,366 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Generated with linux-mdss-dsi-panel-driver-generator from vendor device= tree. + * Copyright (c) 2024 David Wronek + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +struct rm69380_panel { + struct drm_panel panel; + struct mipi_dsi_device *dsi[2]; + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; + bool prepared; +}; + +static inline +struct rm69380_panel *to_rm69380_panel(struct drm_panel *panel) +{ + return container_of(panel, struct rm69380_panel, panel); +} + +static void rm69380_reset(struct rm69380_panel *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(15000, 16000); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + usleep_range(10000, 11000); + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + msleep(30); +} + +static int rm69380_on(struct rm69380_panel *ctx) +{ + struct mipi_dsi_device *dsi =3D ctx->dsi[0]; + struct device *dev =3D &dsi->dev; + int ret; + + dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; + if (ctx->dsi[1]) + ctx->dsi[1]->mode_flags |=3D MIPI_DSI_MODE_LPM; + + mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd4); + mipi_dsi_dcs_write_seq(dsi, 0x00, 0x80); + mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd0); + mipi_dsi_dcs_write_seq(dsi, 0x48, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x26); + mipi_dsi_dcs_write_seq(dsi, 0x75, 0x3f); + mipi_dsi_dcs_write_seq(dsi, 0x1d, 0x1a); + mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0x53, 0x28); + mipi_dsi_dcs_write_seq(dsi, 0xc2, 0x08); + mipi_dsi_dcs_write_seq(dsi, 0x35, 0x00); + mipi_dsi_dcs_write_seq(dsi, 0x51, 0x07, 0xff); + + ret =3D mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + msleep(20); + + ret =3D mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + msleep(36); + + return 0; +} + +static int rm69380_off(struct rm69380_panel *ctx) +{ + struct mipi_dsi_device *dsi =3D ctx->dsi[0]; + struct device *dev =3D &dsi->dev; + int ret; + + dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + if (ctx->dsi[1]) + ctx->dsi[1]->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + + ret =3D mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display off: %d\n", ret); + return ret; + } + msleep(35); + + ret =3D mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to enter sleep mode: %d\n", ret); + return ret; + } + msleep(20); + + return 0; +} + +static int rm69380_prepare(struct drm_panel *panel) +{ + struct rm69380_panel *ctx =3D to_rm69380_panel(panel); + struct device *dev =3D &ctx->dsi[0]->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret =3D regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) { + dev_err(dev, "Failed to enable regulators: %d\n", ret); + return ret; + } + + rm69380_reset(ctx); + + ret =3D rm69380_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + return ret; + } + + return 0; +} + +static int rm69380_unprepare(struct drm_panel *panel) +{ + struct rm69380_panel *ctx =3D to_rm69380_panel(panel); + struct device *dev =3D &ctx->dsi[0]->dev; + int ret; + + if (!ctx->prepared) + return 0; + + ret =3D rm69380_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + + ctx->prepared =3D false; + return 0; +} + +static const struct drm_display_mode rm69380_mode =3D { + .clock =3D (2560 + 32 + 12 + 38) * (1600 + 20 + 4 + 8) * 90 / 1000, + .hdisplay =3D 2560, + .hsync_start =3D 2560 + 32, + .hsync_end =3D 2560 + 32 + 12, + .htotal =3D 2560 + 32 + 12 + 38, + .vdisplay =3D 1600, + .vsync_start =3D 1600 + 20, + .vsync_end =3D 1600 + 20 + 4, + .vtotal =3D 1600 + 20 + 4 + 8, + .width_mm =3D 248, + .height_mm =3D 155, + .type =3D DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, +}; + +static int rm69380_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + return drm_connector_helper_get_modes_fixed(connector, &rm69380_mode); +} + +static const struct drm_panel_funcs rm69380_panel_funcs =3D { + .prepare =3D rm69380_prepare, + .unprepare =3D rm69380_unprepare, + .get_modes =3D rm69380_get_modes, +}; + +static int rm69380_bl_update_status(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi =3D bl_get_data(bl); + u16 brightness =3D backlight_get_brightness(bl); + int ret; + + dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + + ret =3D mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); + if (ret < 0) + return ret; + + dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; + + return 0; +} + +static int rm69380_bl_get_brightness(struct backlight_device *bl) +{ + struct mipi_dsi_device *dsi =3D bl_get_data(bl); + u16 brightness; + int ret; + + dsi->mode_flags &=3D ~MIPI_DSI_MODE_LPM; + + ret =3D mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness); + if (ret < 0) + return ret; + + dsi->mode_flags |=3D MIPI_DSI_MODE_LPM; + + return brightness; +} + +static const struct backlight_ops rm69380_bl_ops =3D { + .update_status =3D rm69380_bl_update_status, + .get_brightness =3D rm69380_bl_get_brightness, +}; + +static struct backlight_device * +rm69380_create_backlight(struct mipi_dsi_device *dsi) +{ + struct device *dev =3D &dsi->dev; + const struct backlight_properties props =3D { + .type =3D BACKLIGHT_RAW, + .brightness =3D 2047, + .max_brightness =3D 2047, + }; + + return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, + &rm69380_bl_ops, &props); +} + +static int rm69380_probe(struct mipi_dsi_device *dsi) +{ + struct mipi_dsi_host *dsi_sec_host; + struct rm69380_panel *ctx; + struct device *dev =3D &dsi->dev; + struct device_node *dsi_sec; + int ret, i; + + ctx =3D devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->supplies[0].supply =3D "vddio"; + ctx->supplies[1].supply =3D "avdd"; + ret =3D devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to get regulators\n"); + + ctx->reset_gpio =3D devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ctx->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), + "Failed to get reset-gpios\n"); + + dsi_sec =3D of_graph_get_remote_node(dsi->dev.of_node, 1, -1); + + if (dsi_sec) { + dev_dbg(dev, "Using Dual-DSI\n"); + + const struct mipi_dsi_device_info info =3D { "RM69380", 0, + dsi_sec }; + + dev_dbg(dev, "Found second DSI `%s`\n", dsi_sec->name); + + dsi_sec_host =3D of_find_mipi_dsi_host_by_node(dsi_sec); + of_node_put(dsi_sec); + if (!dsi_sec_host) { + return dev_err_probe(dev, -EPROBE_DEFER, + "Cannot get secondary DSI host\n"); + } + + ctx->dsi[1] =3D + mipi_dsi_device_register_full(dsi_sec_host, &info); + if (IS_ERR(ctx->dsi[1])) { + return dev_err_probe(dev, PTR_ERR(ctx->dsi[1]), + "Cannot get secondary DSI node\n"); + } + + dev_dbg(dev, "Second DSI name `%s`\n", ctx->dsi[1]->name); + mipi_dsi_set_drvdata(ctx->dsi[1], ctx); + } else { + dev_dbg(dev, "Using Single-DSI\n"); + } + + ctx->dsi[0] =3D dsi; + mipi_dsi_set_drvdata(dsi, ctx); + + drm_panel_init(&ctx->panel, dev, &rm69380_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.prepare_prev_first =3D true; + + ctx->panel.backlight =3D rm69380_create_backlight(dsi); + if (IS_ERR(ctx->panel.backlight)) + return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), + "Failed to create backlight\n"); + + drm_panel_add(&ctx->panel); + + for (i =3D 0; i < ARRAY_SIZE(ctx->dsi); i++) { + if (!ctx->dsi[i]) + continue; + + dev_dbg(&ctx->dsi[i]->dev, "Binding DSI %d\n", i); + + ctx->dsi[i]->lanes =3D 4; + ctx->dsi[i]->format =3D MIPI_DSI_FMT_RGB888; + ctx->dsi[i]->mode_flags =3D MIPI_DSI_MODE_VIDEO_BURST | + MIPI_DSI_CLOCK_NON_CONTINUOUS; + + ret =3D mipi_dsi_attach(ctx->dsi[i]); + if (ret < 0) { + drm_panel_remove(&ctx->panel); + return dev_err_probe(dev, ret, + "Failed to attach to DSI%d\n", i); + } + } + + return 0; +} + +static void rm69380_remove(struct mipi_dsi_device *dsi) +{ + struct rm69380_panel *ctx =3D mipi_dsi_get_drvdata(dsi); + int i; + int ret; + + for (i =3D 0; i < ARRAY_SIZE(ctx->dsi); i++) { + if (!ctx->dsi[i]) + continue; + + ret =3D mipi_dsi_detach(ctx->dsi[i]); + if (ret < 0) + dev_err(&dsi->dev, "Failed to detach from DSI%d host: %d\n", i, ret); + } + + drm_panel_remove(&ctx->panel); +} + +static const struct of_device_id rm69380_of_match[] =3D { + { .compatible =3D "lenovo,j716f-edo-rm69380" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, rm69380_of_match); + +static struct mipi_dsi_driver rm69380_panel_driver =3D { + .probe =3D rm69380_probe, + .remove =3D rm69380_remove, + .driver =3D { + .name =3D "panel-raydium-rm69380", + .of_match_table =3D rm69380_of_match, + }, +}; +module_mipi_dsi_driver(rm69380_panel_driver); + +MODULE_AUTHOR("David Wronek