linux-kernel - Re: [PATCH 3/3] drm: panel-simple: support TOPLAND TIAN G07017 LCD panel

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Message-ID: <ea76f075-348e-4749-bbef-59de8d1f03a6@linaro.org>
Date: Thu, 19 Dec 2024 09:39:51 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Ahmad Fatoum <a.fatoum@...gutronix.de>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Jessica Zhang <quic_jesszhan@...cinc.com>,
 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>,
 Thierry Reding <thierry.reding@...il.com>, Sam Ravnborg <sam@...nborg.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, kernel@...gutronix.de
Subject: Re: [PATCH 3/3] drm: panel-simple: support TOPLAND TIAN G07017 LCD
 panel

On 18/12/2024 20:45, Ahmad Fatoum wrote:
> The TIAN-G07017-01 is a 7" TFT-LCD module by TOPLAND ELECTRONICS (H.K).
> The panel features 1024x600 24-bit RGB pixels driven over LVDS as well
> as a PWM backlight and I2C-connected ft5506-compatible capacitive touch.
> 
> The panel description is taken from the Datasheet V0 (2024.5.23), but
> it lists no timings and these were provided by the vendor separately.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
> ---
>   drivers/gpu/drm/panel/panel-simple.c | 34 ++++++++++++++++++++++++++++++++++
>   1 file changed, 34 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 222c170dde8be261e98ff41168ef8a3a42c167c8..626cbc6858215f6fdc72063e38564e2dc1deb52c 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -4361,6 +4361,37 @@ static const struct panel_desc ti_nspire_classic_lcd_panel = {
>   	.bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE,
>   };
>   
> +static const struct display_timing topland_tian_g07017_01_timing = {
> +	.pixelclock = { 44900000, 51200000, 63000000 },
> +	.hactive = { 1024, 1024, 1024 },
> +	.hfront_porch = { 16, 160, 216 },
> +	.hback_porch = { 160, 160, 160 },
> +	.hsync_len = { 1, 1, 140 },
> +	.vactive = { 600, 600, 600 },
> +	.vfront_porch = { 1, 12, 127 },
> +	.vback_porch = { 23, 23, 23 },
> +	.vsync_len = { 1, 1, 20 },
> +};
> +
> +static const struct panel_desc topland_tian_g07017_01 = {
> +	.timings = &topland_tian_g07017_01_timing,
> +	.num_timings = 1,
> +	.bpc = 8,
> +	.size = {
> +		.width = 154,
> +		.height = 86,
> +	},
> +	.delay = {
> +		.prepare = 1, /* 6.5 - 150µs PLL wake-up time */
> +		.enable = 100,  /* 6.4 - Power on: 6 VSyncs */
> +		.disable = 84, /* 6.4 - Power off: 5 Vsyncs */
> +		.unprepare = 50, /* 6.4 - Power off: 3 Vsyncs */
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> +	.connector_type = DRM_MODE_CONNECTOR_LVDS,
> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
> +};
> +
>   static const struct drm_display_mode toshiba_lt089ac29000_mode = {
>   	.clock = 79500,
>   	.hdisplay = 1280,
> @@ -5037,6 +5068,9 @@ static const struct of_device_id platform_of_match[] = {
>   	}, {
>   		.compatible = "toshiba,lt089ac29000",
>   		.data = &toshiba_lt089ac29000,
> +	}, {
> +		.compatible = "topland,tian-g07017-01",
> +		.data = &topland_tian_g07017_01,
>   	}, {
>   		.compatible = "tpk,f07a-0102",
>   		.data = &tpk_f07a_0102,
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>