linux-kernel - Re: [PATCH 1/2] drm/panel: simple: Add Sharp LS020B1DD01D panel support

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Date:   Fri, 01 Mar 2019 19:42:33 -0300
From:   Paul Cercueil <paul@...pouillou.net>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 1/2] drm/panel: simple: Add Sharp LS020B1DD01D panel
 support

Hi,

Le ven. 1 mars 2019 à 19:24, Sam Ravnborg <sam@...nborg.org> a écrit :
> Hi Paul.
> 
> On Thu, Feb 28, 2019 at 03:58:52PM -0300, Paul Cercueil wrote:
>>  The Sharp LS020B1DD01D is a simple 2.0" 240x160 16-bit TFT panel.
>> 
>>  Signed-off-by: Paul Cercueil <paul@...pouillou.net>
>>  Tested-by: Artur Rojek <contact@...ur-rojek.eu>
>>  ---
>>   drivers/gpu/drm/panel/panel-simple.c | 28 
>> ++++++++++++++++++++++++++++
>>   1 file changed, 28 insertions(+)
>> 
>>  diff --git a/drivers/gpu/drm/panel/panel-simple.c 
>> b/drivers/gpu/drm/panel/panel-simple.c
>>  index 9e8218f6a3f2..3ab604f5477e 100644
>>  --- a/drivers/gpu/drm/panel/panel-simple.c
>>  +++ b/drivers/gpu/drm/panel/panel-simple.c
>>  @@ -2278,6 +2278,31 @@ static const struct panel_desc 
>> sharp_lq150x1lg11 = {
>>   	.bus_format = MEDIA_BUS_FMT_RGB565_1X16,
>>   };
>> 
>>  +static const struct display_timing sharp_ls020b1dd01d_timing = {
>>  +	.pixelclock = { 2000000, 4200000, 5000000 },
>>  +	.hactive = { 240, 240, 240 },
>>  +	.hfront_porch = { 66, 66, 66 },
>>  +	.hback_porch = { 1, 1, 1 },
>>  +	.hsync_len = { 1, 1, 1 },
>>  +	.vactive = { 160, 160, 160 },
>>  +	.vfront_porch = { 52, 52, 52 },
>>  +	.vback_porch = { 6, 6, 6 },
>>  +	.vsync_len = { 10, 10, 10 },
>>  +	.flags = DISPLAY_FLAGS_HSYNC_HIGH | DISPLAY_FLAGS_VSYNC_LOW,
>>  +};
>>  +
>>  +static const struct panel_desc sharp_ls020b1dd01d = {
>>  +	.timings = &sharp_ls020b1dd01d_timing,
>>  +	.num_timings = 1,
>>  +	.bpc = 6,
>>  +	.size = {
>>  +		.width = 42,
>>  +		.height = 28,
>>  +	},
>>  +	.bus_format = MEDIA_BUS_FMT_RGB565_1X16,
>>  +	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_NEGEDGE,
>>  +};
>>  +
>>   static const struct drm_display_mode shelly_sca07010_bfn_lnn_mode 
>> = {
>>   	.clock = 33300,
>>   	.hdisplay = 800,
>>  @@ -2767,6 +2792,9 @@ static const struct of_device_id 
>> platform_of_match[] = {
>>   		.compatible = "sharp,lq150x1lg11",
>>   		.data = &sharp_lq150x1lg11,
>>   	}, {
>>  +		.compatible = "sharp,ls020b1dd01d",
>>  +		.data = &sharp_ls020b1dd01d,
>>  +	}, {
> For all three patches I am missing dt-bindings documentation.

Yes, I looked at 
Documentation/devicetree/bindings/display/panel/simple-panel.txt,
and saw that it was never documented with new compatible strings, so I 
thought
that for this driver it wasn't needed. I didn't see the other files. 
I'll add
the dt-bindings doc in V2.

> also for all three patches you get a "+1" for adding all of
> .flags, .bus_format, .bus_flags.
> 
> 	Sam

Thanks,
-Paul