linux-kernel - Re: [PATCH v1 1/2] drm/panel: simple-panel: add the delay timing for Sharp LQ123P1JX31

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Date:	Fri, 22 Jul 2016 09:00:34 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Sean Paul <seanpaul@...omium.org>
Cc:	Mark Yao <yzq@...k-chips.com>, Inki Dae <inki.dae@...sung.com>,
	Thierry Reding <treding@...dia.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Jingoo Han <jingoohan1@...il.com>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Stéphane Marchesin <marcheu@...omium.org>,
	Tomasz Figa <tfiga@...omium.org>,
	Douglas Anderson <dianders@...omium.org>,
	David Airlie <airlied@...ux.ie>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Emil Velikov <emil.l.velikov@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v1 1/2] drm/panel: simple-panel: add the delay timing for
 Sharp LQ123P1JX31

Sean,

On 07/21/2016 10:30 PM, Sean Paul wrote:
> On Thu, Jul 21, 2016 at 9:14 AM, Yakir Yang <ykk@...k-chips.com> wrote:
>> According to page 16 of Sharp LQ123P1JX31 datasheet, we need to add the
>> missing delay timing. Panel prepare time should be t1 (0.5ms~10ms) plus
>> t3 (0ms~100ms), and panel enable time should equal to t7 (0ms~50ms), and
>> panel unprepare time should be t11 (1ms~50ms) plus t12 (500ms~).
>>
>> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> Reviewed-by: Sean Paul <seanpaul@...omium.org>

Thanks  :-D

- Yakir

>> ---
>>   drivers/gpu/drm/panel/panel-simple.c | 5 +++++
>>   1 file changed, 5 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
>> index 85143d1..f178998 100644
>> --- a/drivers/gpu/drm/panel/panel-simple.c
>> +++ b/drivers/gpu/drm/panel/panel-simple.c
>> @@ -1384,6 +1384,11 @@ static const struct panel_desc sharp_lq123p1jx31 = {
>>                  .width = 259,
>>                  .height = 173,
>>          },
>> +       .delay = {
>> +               .prepare = 110,
>> +               .enable = 50,
>> +               .unprepare = 550,
>> +       },
>>   };
>>
>>   static const struct drm_display_mode shelly_sca07010_bfn_lnn_mode = {
>> --
>> 1.9.1
>>
>>
>
>