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Message-ID: <2cbbc5d6-2d6b-4afe-a0ef-7f59d28724dc@quicinc.com>
Date: Tue, 10 Dec 2024 09:45:09 -0800
From: Jessica Zhang <quic_jesszhan@...cinc.com>
To: Sebastian Reichel <sebastian.reichel@...labora.com>,
Neil Armstrong
<neil.armstrong@...aro.org>,
Andy Yan <andyshrk@....com>, Rob Herring
<robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley
<conor+dt@...nel.org>
CC: David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Maarten
Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard
<mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
<dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-rockchip@...ts.infradead.org>,
<kernel@...labora.com>
Subject: Re: [PATCH v1 2/2] drm/panel: add Raydium RM67200 panel driver
On 12/10/2024 8:41 AM, Sebastian Reichel wrote:
> The Rockchip W552793DBA-V10 display/touchscreen board contains a
> Wanchanglong W552793BAA panel, which in turn is using a Raydium
> RM67200 MIPI-DSI controller. Add a DSI panel driver for it.
>
> The W552793BAA panel init sequence has been taken from the RK3588
> EVB1 vendor kernel devicetree.
>
> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> ---
> drivers/gpu/drm/panel/Kconfig | 8 +
> drivers/gpu/drm/panel/Makefile | 1 +
> drivers/gpu/drm/panel/panel-raydium-rm67200.c | 503 ++++++++++++++++++
> 3 files changed, 512 insertions(+)
> create mode 100644 drivers/gpu/drm/panel/panel-raydium-rm67200.c
>
> diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
> index d7469c565d1d..c2b08fdb0c26 100644
> --- a/drivers/gpu/drm/panel/Kconfig
> +++ b/drivers/gpu/drm/panel/Kconfig
> @@ -573,6 +573,14 @@ config DRM_PANEL_RAYDIUM_RM67191
> Say Y here if you want to enable support for Raydium RM67191 FHD
> (1080x1920) DSI panel.
>
> +config DRM_PANEL_RAYDIUM_RM67200
> + tristate "Raydium RM67200-based DSI panel"
> + depends on OF
> + depends on DRM_MIPI_DSI
> + help
> + Say Y here if you want to enable support for Raydium RM67200-based
> + display panels.
> +
> config DRM_PANEL_RAYDIUM_RM68200
> tristate "Raydium RM68200 720x1280 DSI video mode panel"
> depends on OF
> diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
> index 7dcf72646cac..f7b7cd179492 100644
> --- a/drivers/gpu/drm/panel/Makefile
> +++ b/drivers/gpu/drm/panel/Makefile
> @@ -58,6 +58,7 @@ obj-$(CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS) += panel-osd-osd101t2587-53ts.o
> obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
> obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
> obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) += panel-raydium-rm67191.o
> +obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67200) += panel-raydium-rm67200.o
> obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
> obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
> obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
> diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67200.c b/drivers/gpu/drm/panel/panel-raydium-rm67200.c
> new file mode 100644
> index 000000000000..1a7201ce6c98
> --- /dev/null
> +++ b/drivers/gpu/drm/panel/panel-raydium-rm67200.c
> @@ -0,0 +1,503 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +// Copyright (c) 2024 Collabora
> +
> +#include <linux/delay.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/module.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/property.h>
> +#include <linux/regulator/consumer.h>
> +
> +#include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_probe_helper.h>
> +#include <drm/drm_modes.h>
> +#include <drm/drm_panel.h>
> +
> +struct raydium_rm67200_panel_info {
> + struct drm_display_mode mode;
> + const struct regulator_bulk_data *regulators;
> + int num_regulators;
> + void (*panel_setup)(struct mipi_dsi_multi_context *ctx);
> +};
> +
> +struct raydium_rm67200 {
> + struct drm_panel panel;
> + const struct raydium_rm67200_panel_info *panel_info;
> + struct mipi_dsi_device *dsi;
> + struct gpio_desc *reset_gpio;
> + struct regulator_bulk_data *supplies;
> + int num_supplies;
> +};
> +
> +static inline struct raydium_rm67200 *to_raydium_rm67200(struct drm_panel *panel)
> +{
> + return container_of(panel, struct raydium_rm67200, panel);
> +}
> +
> +static void raydium_rm67200_reset(struct raydium_rm67200 *ctx)
> +{
> + gpiod_set_value_cansleep(ctx->reset_gpio, 0);
> + msleep(60);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> + msleep(60);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 0);
> + msleep(60);
> +}
> +
> +static void raydium_rm67200_write(struct mipi_dsi_multi_context *ctx,
> + u8 arg1, u8 arg2)
> +{
> + u8 d[] = { arg1, arg2 };
> +
> + mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d));
> +}
> +
> +static void w552793baa_setup(struct mipi_dsi_multi_context *ctx)
> +{
> + raydium_rm67200_write(ctx, 0xFE, 0x21);
> + raydium_rm67200_write(ctx, 0x04, 0x00);
> + raydium_rm67200_write(ctx, 0x00, 0x64);
> + raydium_rm67200_write(ctx, 0x2A, 0x00);
> + raydium_rm67200_write(ctx, 0x26, 0x64);
> + raydium_rm67200_write(ctx, 0x54, 0x00);
> + raydium_rm67200_write(ctx, 0x50, 0x64);
> + raydium_rm67200_write(ctx, 0x7B, 0x00);
> + raydium_rm67200_write(ctx, 0x77, 0x64);
> + raydium_rm67200_write(ctx, 0xA2, 0x00);
> + raydium_rm67200_write(ctx, 0x9D, 0x64);
> + raydium_rm67200_write(ctx, 0xC9, 0x00);
> + raydium_rm67200_write(ctx, 0xC5, 0x64);
> + raydium_rm67200_write(ctx, 0x01, 0x71);
> + raydium_rm67200_write(ctx, 0x27, 0x71);
> + raydium_rm67200_write(ctx, 0x51, 0x71);
> + raydium_rm67200_write(ctx, 0x78, 0x71);
> + raydium_rm67200_write(ctx, 0x9E, 0x71);
> + raydium_rm67200_write(ctx, 0xC6, 0x71);
> + raydium_rm67200_write(ctx, 0x02, 0x89);
> + raydium_rm67200_write(ctx, 0x28, 0x89);
> + raydium_rm67200_write(ctx, 0x52, 0x89);
> + raydium_rm67200_write(ctx, 0x79, 0x89);
> + raydium_rm67200_write(ctx, 0x9F, 0x89);
> + raydium_rm67200_write(ctx, 0xC7, 0x89);
> + raydium_rm67200_write(ctx, 0x03, 0x9E);
> + raydium_rm67200_write(ctx, 0x29, 0x9E);
> + raydium_rm67200_write(ctx, 0x53, 0x9E);
> + raydium_rm67200_write(ctx, 0x7A, 0x9E);
> + raydium_rm67200_write(ctx, 0xA0, 0x9E);
> + raydium_rm67200_write(ctx, 0xC8, 0x9E);
> + raydium_rm67200_write(ctx, 0x09, 0x00);
> + raydium_rm67200_write(ctx, 0x05, 0xB0);
> + raydium_rm67200_write(ctx, 0x31, 0x00);
> + raydium_rm67200_write(ctx, 0x2B, 0xB0);
> + raydium_rm67200_write(ctx, 0x5A, 0x00);
> + raydium_rm67200_write(ctx, 0x55, 0xB0);
> + raydium_rm67200_write(ctx, 0x80, 0x00);
> + raydium_rm67200_write(ctx, 0x7C, 0xB0);
> + raydium_rm67200_write(ctx, 0xA7, 0x00);
> + raydium_rm67200_write(ctx, 0xA3, 0xB0);
> + raydium_rm67200_write(ctx, 0xCE, 0x00);
> + raydium_rm67200_write(ctx, 0xCA, 0xB0);
> + raydium_rm67200_write(ctx, 0x06, 0xC0);
> + raydium_rm67200_write(ctx, 0x2D, 0xC0);
> + raydium_rm67200_write(ctx, 0x56, 0xC0);
> + raydium_rm67200_write(ctx, 0x7D, 0xC0);
> + raydium_rm67200_write(ctx, 0xA4, 0xC0);
> + raydium_rm67200_write(ctx, 0xCB, 0xC0);
> + raydium_rm67200_write(ctx, 0x07, 0xCF);
> + raydium_rm67200_write(ctx, 0x2F, 0xCF);
> + raydium_rm67200_write(ctx, 0x58, 0xCF);
> + raydium_rm67200_write(ctx, 0x7E, 0xCF);
> + raydium_rm67200_write(ctx, 0xA5, 0xCF);
> + raydium_rm67200_write(ctx, 0xCC, 0xCF);
> + raydium_rm67200_write(ctx, 0x08, 0xDD);
> + raydium_rm67200_write(ctx, 0x30, 0xDD);
> + raydium_rm67200_write(ctx, 0x59, 0xDD);
> + raydium_rm67200_write(ctx, 0x7F, 0xDD);
> + raydium_rm67200_write(ctx, 0xA6, 0xDD);
> + raydium_rm67200_write(ctx, 0xCD, 0xDD);
> + raydium_rm67200_write(ctx, 0x0E, 0x15);
> + raydium_rm67200_write(ctx, 0x0A, 0xE9);
> + raydium_rm67200_write(ctx, 0x36, 0x15);
> + raydium_rm67200_write(ctx, 0x32, 0xE9);
> + raydium_rm67200_write(ctx, 0x5F, 0x15);
> + raydium_rm67200_write(ctx, 0x5B, 0xE9);
> + raydium_rm67200_write(ctx, 0x85, 0x15);
> + raydium_rm67200_write(ctx, 0x81, 0xE9);
> + raydium_rm67200_write(ctx, 0xAD, 0x15);
> + raydium_rm67200_write(ctx, 0xA9, 0xE9);
> + raydium_rm67200_write(ctx, 0xD3, 0x15);
> + raydium_rm67200_write(ctx, 0xCF, 0xE9);
> + raydium_rm67200_write(ctx, 0x0B, 0x14);
> + raydium_rm67200_write(ctx, 0x33, 0x14);
> + raydium_rm67200_write(ctx, 0x5C, 0x14);
> + raydium_rm67200_write(ctx, 0x82, 0x14);
> + raydium_rm67200_write(ctx, 0xAA, 0x14);
> + raydium_rm67200_write(ctx, 0xD0, 0x14);
> + raydium_rm67200_write(ctx, 0x0C, 0x36);
> + raydium_rm67200_write(ctx, 0x34, 0x36);
> + raydium_rm67200_write(ctx, 0x5D, 0x36);
> + raydium_rm67200_write(ctx, 0x83, 0x36);
> + raydium_rm67200_write(ctx, 0xAB, 0x36);
> + raydium_rm67200_write(ctx, 0xD1, 0x36);
> + raydium_rm67200_write(ctx, 0x0D, 0x6B);
> + raydium_rm67200_write(ctx, 0x35, 0x6B);
> + raydium_rm67200_write(ctx, 0x5E, 0x6B);
> + raydium_rm67200_write(ctx, 0x84, 0x6B);
> + raydium_rm67200_write(ctx, 0xAC, 0x6B);
> + raydium_rm67200_write(ctx, 0xD2, 0x6B);
> + raydium_rm67200_write(ctx, 0x13, 0x5A);
> + raydium_rm67200_write(ctx, 0x0F, 0x94);
> + raydium_rm67200_write(ctx, 0x3B, 0x5A);
> + raydium_rm67200_write(ctx, 0x37, 0x94);
> + raydium_rm67200_write(ctx, 0x64, 0x5A);
> + raydium_rm67200_write(ctx, 0x60, 0x94);
> + raydium_rm67200_write(ctx, 0x8A, 0x5A);
> + raydium_rm67200_write(ctx, 0x86, 0x94);
> + raydium_rm67200_write(ctx, 0xB2, 0x5A);
> + raydium_rm67200_write(ctx, 0xAE, 0x94);
> + raydium_rm67200_write(ctx, 0xD8, 0x5A);
> + raydium_rm67200_write(ctx, 0xD4, 0x94);
> + raydium_rm67200_write(ctx, 0x10, 0xD1);
> + raydium_rm67200_write(ctx, 0x38, 0xD1);
> + raydium_rm67200_write(ctx, 0x61, 0xD1);
> + raydium_rm67200_write(ctx, 0x87, 0xD1);
> + raydium_rm67200_write(ctx, 0xAF, 0xD1);
> + raydium_rm67200_write(ctx, 0xD5, 0xD1);
> + raydium_rm67200_write(ctx, 0x11, 0x04);
> + raydium_rm67200_write(ctx, 0x39, 0x04);
> + raydium_rm67200_write(ctx, 0x62, 0x04);
> + raydium_rm67200_write(ctx, 0x88, 0x04);
> + raydium_rm67200_write(ctx, 0xB0, 0x04);
> + raydium_rm67200_write(ctx, 0xD6, 0x04);
> + raydium_rm67200_write(ctx, 0x12, 0x05);
> + raydium_rm67200_write(ctx, 0x3A, 0x05);
> + raydium_rm67200_write(ctx, 0x63, 0x05);
> + raydium_rm67200_write(ctx, 0x89, 0x05);
> + raydium_rm67200_write(ctx, 0xB1, 0x05);
> + raydium_rm67200_write(ctx, 0xD7, 0x05);
> + raydium_rm67200_write(ctx, 0x18, 0xAA);
> + raydium_rm67200_write(ctx, 0x14, 0x36);
> + raydium_rm67200_write(ctx, 0x42, 0xAA);
> + raydium_rm67200_write(ctx, 0x3D, 0x36);
> + raydium_rm67200_write(ctx, 0x69, 0xAA);
> + raydium_rm67200_write(ctx, 0x65, 0x36);
> + raydium_rm67200_write(ctx, 0x8F, 0xAA);
> + raydium_rm67200_write(ctx, 0x8B, 0x36);
> + raydium_rm67200_write(ctx, 0xB7, 0xAA);
> + raydium_rm67200_write(ctx, 0xB3, 0x36);
> + raydium_rm67200_write(ctx, 0xDD, 0xAA);
> + raydium_rm67200_write(ctx, 0xD9, 0x36);
> + raydium_rm67200_write(ctx, 0x15, 0x74);
> + raydium_rm67200_write(ctx, 0x3F, 0x74);
> + raydium_rm67200_write(ctx, 0x66, 0x74);
> + raydium_rm67200_write(ctx, 0x8C, 0x74);
> + raydium_rm67200_write(ctx, 0xB4, 0x74);
> + raydium_rm67200_write(ctx, 0xDA, 0x74);
> + raydium_rm67200_write(ctx, 0x16, 0x9F);
> + raydium_rm67200_write(ctx, 0x40, 0x9F);
> + raydium_rm67200_write(ctx, 0x67, 0x9F);
> + raydium_rm67200_write(ctx, 0x8D, 0x9F);
> + raydium_rm67200_write(ctx, 0xB5, 0x9F);
> + raydium_rm67200_write(ctx, 0xDB, 0x9F);
> + raydium_rm67200_write(ctx, 0x17, 0xDC);
> + raydium_rm67200_write(ctx, 0x41, 0xDC);
> + raydium_rm67200_write(ctx, 0x68, 0xDC);
> + raydium_rm67200_write(ctx, 0x8E, 0xDC);
> + raydium_rm67200_write(ctx, 0xB6, 0xDC);
> + raydium_rm67200_write(ctx, 0xDC, 0xDC);
> + raydium_rm67200_write(ctx, 0x1D, 0xFF);
> + raydium_rm67200_write(ctx, 0x19, 0x03);
> + raydium_rm67200_write(ctx, 0x47, 0xFF);
> + raydium_rm67200_write(ctx, 0x43, 0x03);
> + raydium_rm67200_write(ctx, 0x6E, 0xFF);
> + raydium_rm67200_write(ctx, 0x6A, 0x03);
> + raydium_rm67200_write(ctx, 0x94, 0xFF);
> + raydium_rm67200_write(ctx, 0x90, 0x03);
> + raydium_rm67200_write(ctx, 0xBC, 0xFF);
> + raydium_rm67200_write(ctx, 0xB8, 0x03);
> + raydium_rm67200_write(ctx, 0xE2, 0xFF);
> + raydium_rm67200_write(ctx, 0xDE, 0x03);
> + raydium_rm67200_write(ctx, 0x1A, 0x35);
> + raydium_rm67200_write(ctx, 0x44, 0x35);
> + raydium_rm67200_write(ctx, 0x6B, 0x35);
> + raydium_rm67200_write(ctx, 0x91, 0x35);
> + raydium_rm67200_write(ctx, 0xB9, 0x35);
> + raydium_rm67200_write(ctx, 0xDF, 0x35);
> + raydium_rm67200_write(ctx, 0x1B, 0x45);
> + raydium_rm67200_write(ctx, 0x45, 0x45);
> + raydium_rm67200_write(ctx, 0x6C, 0x45);
> + raydium_rm67200_write(ctx, 0x92, 0x45);
> + raydium_rm67200_write(ctx, 0xBA, 0x45);
> + raydium_rm67200_write(ctx, 0xE0, 0x45);
> + raydium_rm67200_write(ctx, 0x1C, 0x55);
> + raydium_rm67200_write(ctx, 0x46, 0x55);
> + raydium_rm67200_write(ctx, 0x6D, 0x55);
> + raydium_rm67200_write(ctx, 0x93, 0x55);
> + raydium_rm67200_write(ctx, 0xBB, 0x55);
> + raydium_rm67200_write(ctx, 0xE1, 0x55);
> + raydium_rm67200_write(ctx, 0x22, 0xFF);
> + raydium_rm67200_write(ctx, 0x1E, 0x68);
> + raydium_rm67200_write(ctx, 0x4C, 0xFF);
> + raydium_rm67200_write(ctx, 0x48, 0x68);
> + raydium_rm67200_write(ctx, 0x73, 0xFF);
> + raydium_rm67200_write(ctx, 0x6F, 0x68);
> + raydium_rm67200_write(ctx, 0x99, 0xFF);
> + raydium_rm67200_write(ctx, 0x95, 0x68);
> + raydium_rm67200_write(ctx, 0xC1, 0xFF);
> + raydium_rm67200_write(ctx, 0xBD, 0x68);
> + raydium_rm67200_write(ctx, 0xE7, 0xFF);
> + raydium_rm67200_write(ctx, 0xE3, 0x68);
> + raydium_rm67200_write(ctx, 0x1F, 0x7E);
> + raydium_rm67200_write(ctx, 0x49, 0x7E);
> + raydium_rm67200_write(ctx, 0x70, 0x7E);
> + raydium_rm67200_write(ctx, 0x96, 0x7E);
> + raydium_rm67200_write(ctx, 0xBE, 0x7E);
> + raydium_rm67200_write(ctx, 0xE4, 0x7E);
> + raydium_rm67200_write(ctx, 0x20, 0x97);
> + raydium_rm67200_write(ctx, 0x4A, 0x97);
> + raydium_rm67200_write(ctx, 0x71, 0x97);
> + raydium_rm67200_write(ctx, 0x97, 0x97);
> + raydium_rm67200_write(ctx, 0xBF, 0x97);
> + raydium_rm67200_write(ctx, 0xE5, 0x97);
> + raydium_rm67200_write(ctx, 0x21, 0xB5);
> + raydium_rm67200_write(ctx, 0x4B, 0xB5);
> + raydium_rm67200_write(ctx, 0x72, 0xB5);
> + raydium_rm67200_write(ctx, 0x98, 0xB5);
> + raydium_rm67200_write(ctx, 0xC0, 0xB5);
> + raydium_rm67200_write(ctx, 0xE6, 0xB5);
> + raydium_rm67200_write(ctx, 0x25, 0xF0);
> + raydium_rm67200_write(ctx, 0x23, 0xE8);
> + raydium_rm67200_write(ctx, 0x4F, 0xF0);
> + raydium_rm67200_write(ctx, 0x4D, 0xE8);
> + raydium_rm67200_write(ctx, 0x76, 0xF0);
> + raydium_rm67200_write(ctx, 0x74, 0xE8);
> + raydium_rm67200_write(ctx, 0x9C, 0xF0);
> + raydium_rm67200_write(ctx, 0x9A, 0xE8);
> + raydium_rm67200_write(ctx, 0xC4, 0xF0);
> + raydium_rm67200_write(ctx, 0xC2, 0xE8);
> + raydium_rm67200_write(ctx, 0xEA, 0xF0);
> + raydium_rm67200_write(ctx, 0xE8, 0xE8);
> + raydium_rm67200_write(ctx, 0x24, 0xFF);
> + raydium_rm67200_write(ctx, 0x4E, 0xFF);
> + raydium_rm67200_write(ctx, 0x75, 0xFF);
> + raydium_rm67200_write(ctx, 0x9B, 0xFF);
> + raydium_rm67200_write(ctx, 0xC3, 0xFF);
> + raydium_rm67200_write(ctx, 0xE9, 0xFF);
> + raydium_rm67200_write(ctx, 0xFE, 0x3D);
> + raydium_rm67200_write(ctx, 0x00, 0x04);
> + raydium_rm67200_write(ctx, 0xFE, 0x23);
> + raydium_rm67200_write(ctx, 0x08, 0x82);
> + raydium_rm67200_write(ctx, 0x0A, 0x00);
> + raydium_rm67200_write(ctx, 0x0B, 0x00);
> + raydium_rm67200_write(ctx, 0x0C, 0x01);
> + raydium_rm67200_write(ctx, 0x16, 0x00);
> + raydium_rm67200_write(ctx, 0x18, 0x02);
> + raydium_rm67200_write(ctx, 0x1B, 0x04);
> + raydium_rm67200_write(ctx, 0x19, 0x04);
> + raydium_rm67200_write(ctx, 0x1C, 0x81);
> + raydium_rm67200_write(ctx, 0x1F, 0x00);
> + raydium_rm67200_write(ctx, 0x20, 0x03);
> + raydium_rm67200_write(ctx, 0x23, 0x04);
> + raydium_rm67200_write(ctx, 0x21, 0x01);
> + raydium_rm67200_write(ctx, 0x54, 0x63);
> + raydium_rm67200_write(ctx, 0x55, 0x54);
> + raydium_rm67200_write(ctx, 0x6E, 0x45);
> + raydium_rm67200_write(ctx, 0x6D, 0x36);
> + raydium_rm67200_write(ctx, 0xFE, 0x3D);
> + raydium_rm67200_write(ctx, 0x55, 0x78);
> + raydium_rm67200_write(ctx, 0xFE, 0x20);
> + raydium_rm67200_write(ctx, 0x26, 0x30);
> + raydium_rm67200_write(ctx, 0xFE, 0x3D);
> + raydium_rm67200_write(ctx, 0x20, 0x71);
> + raydium_rm67200_write(ctx, 0x50, 0x8F);
> + raydium_rm67200_write(ctx, 0x51, 0x8F);
> + raydium_rm67200_write(ctx, 0xFE, 0x00);
> + raydium_rm67200_write(ctx, 0x35, 0x00);
> +}
> +
> +static int raydium_rm67200_prepare(struct drm_panel *panel)
> +{
> + struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
> + int ret;
> +
> + ret = regulator_bulk_enable(ctx->num_supplies, ctx->supplies);
> + if (ret < 0)
> + return ret;
> +
> + raydium_rm67200_reset(ctx);
> +
> + msleep(60);
> +
> + return 0;
> +}
> +
> +static int raydium_rm67200_unprepare(struct drm_panel *panel)
> +{
> + struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
> +
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> + regulator_bulk_disable(ctx->num_supplies, ctx->supplies);
> +
> + msleep(60);
> +
> + return 0;
> +}
> +
> +static int raydium_rm67200_enable(struct drm_panel *panel)
> +{
> + struct raydium_rm67200 *rm67200 = to_raydium_rm67200(panel);
> + struct mipi_dsi_multi_context ctx = { .dsi = rm67200->dsi };
> +
> + rm67200->panel_info->panel_setup(&ctx);
> + mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
> + mipi_dsi_msleep(&ctx, 120);
> + mipi_dsi_dcs_set_display_on_multi(&ctx);
> + mipi_dsi_msleep(&ctx, 30);
> +
> + msleep(60);
> +
> + return ctx.accum_err;
> +}
> +
> +static int raydium_rm67200_disable(struct drm_panel *panel)
> +{
> + struct raydium_rm67200 *rm67200 = to_raydium_rm67200(panel);
> + struct mipi_dsi_multi_context ctx = { .dsi = rm67200->dsi };
> +
> + mipi_dsi_dcs_set_display_off_multi(&ctx);
> + mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
> +
> + msleep(60);
> +
> + return ctx.accum_err;
> +}
> +
> +static int raydium_rm67200_get_modes(struct drm_panel *panel,
> + struct drm_connector *connector)
> +{
> + struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
> +
> + drm_connector_helper_get_modes_fixed(connector, &ctx->panel_info->mode);
> + return 1;
> +}
> +
> +static const struct drm_panel_funcs raydium_rm67200_funcs = {
> + .prepare = raydium_rm67200_prepare,
> + .unprepare = raydium_rm67200_unprepare,
> + .get_modes = raydium_rm67200_get_modes,
> + .enable = raydium_rm67200_enable,
> + .disable = raydium_rm67200_disable,
> +};
> +
> +static int raydium_rm67200_probe(struct mipi_dsi_device *dsi)
> +{
> + struct device *dev = &dsi->dev;
> + struct raydium_rm67200 *ctx;
> + int ret = 0;
> +
> + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
> + if (!ctx)
> + return -ENOMEM;
> +
> + ctx->panel_info = device_get_match_data(dev);
> + if (!ctx->panel_info)
> + return -EINVAL;
> +
> + ctx->num_supplies = ctx->panel_info->num_regulators;
> + ret = devm_regulator_bulk_get_const(&dsi->dev,
> + ctx->panel_info->num_regulators,
> + ctx->panel_info->regulators,
> + &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");
> +
> + ctx->dsi = dsi;
> + mipi_dsi_set_drvdata(dsi, ctx);
> +
> + dsi->lanes = 4;
> + dsi->format = MIPI_DSI_FMT_RGB888;
> + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
> + MIPI_DSI_MODE_LPM;
> + ctx->panel.prepare_prev_first = true;
> +
> + drm_panel_init(&ctx->panel, dev, &raydium_rm67200_funcs,
> + DRM_MODE_CONNECTOR_DSI);
> +
> + ret = drm_panel_of_backlight(&ctx->panel);
> + if (ret)
> + return ret;
> +
> + drm_panel_add(&ctx->panel);
> +
> + ret = mipi_dsi_attach(dsi);
> + if (ret < 0) {
> + dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
> + drm_panel_remove(&ctx->panel);
> + }
> +
> + return ret;
> +}
> +
> +static void raydium_rm67200_remove(struct mipi_dsi_device *dsi)
> +{
> + struct raydium_rm67200 *ctx = mipi_dsi_get_drvdata(dsi);
> + int ret;
> +
> + ret = mipi_dsi_detach(dsi);
> + if (ret < 0)
> + dev_err(&dsi->dev, "Failed to detach DSI host: %d\n", ret);
> +
> + drm_panel_remove(&ctx->panel);
> +}
> +
> +static const struct regulator_bulk_data w552793baa_regulators[] = {
> + { .supply = "vdd", }, /* 2.8V */
> + { .supply = "iovcc", }, /* 1.8V */
> + { .supply = "vsp", }, /* +5.5V */
> + { .supply = "vsn", }, /* -5.5V */
> +};
> +
> +static const struct raydium_rm67200_panel_info w552793baa_info = {
> + .mode = {
> + .clock = 132000,
> + .hdisplay = 1080,
> + .hsync_start = 1095,
> + .hsync_end = 1125,
> + .htotal = 1129,
> + .vdisplay = 1920,
> + .vsync_start = 1935,
> + .vsync_end = 1950,
> + .vtotal = 1952,
> + .width_mm = 68, /* 68.04mm */
> + .height_mm = 121, /* 120.96mm */
> + .type = DRM_MODE_TYPE_DRIVER,
> + },
> + .regulators = w552793baa_regulators,
> + .num_regulators = ARRAY_SIZE(w552793baa_regulators),
> + .panel_setup = w552793baa_setup,
Hi Sebastian,
Just curious, will there be other panels with different regulators and
init commands added for this driver in the future?
Thanks,
Jessica Zhang
> +};
> +
> +static const struct of_device_id raydium_rm67200_of_match[] = {
> + { .compatible = "wanchanglong,w552793baa", .data = &w552793baa_info },
> + { /*sentinel*/ }
> +};
> +MODULE_DEVICE_TABLE(of, raydium_rm67200_of_match);
> +
> +static struct mipi_dsi_driver raydium_rm67200_driver = {
> + .probe = raydium_rm67200_probe,
> + .remove = raydium_rm67200_remove,
> + .driver = {
> + .name = "panel-raydium-rm67200",
> + .of_match_table = raydium_rm67200_of_match,
> + },
> +};
> +module_mipi_dsi_driver(raydium_rm67200_driver);
> +
> +MODULE_AUTHOR("Sebastian Reichel <sebastian.reichel@...labora.com>");
> +MODULE_DESCRIPTION("DRM driver for RM67200-equipped DSI panels");
> +MODULE_LICENSE("GPL");
> --
> 2.45.2
>
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