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From: Sam Ravnborg <sam@ravnborg.org>
To: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: airlied@linux.ie, thierry.reding@gmail.com, daniel@ffwll.ch,
	dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org
Subject: Re: [PATCH 1/1] drm/panel: truly: Add additional delay after pulling down reset gpio
Date: Wed, 5 Jun 2019 10:22:21 +0200	[thread overview]
Message-ID: <20190605082221.GB15169@ravnborg.org> (raw)
In-Reply-To: <20190527102616.28315-1-vivek.gautam@codeaurora.org>

Hi Vivek,

On Mon, May 27, 2019 at 03:56:16PM +0530, Vivek Gautam wrote:
> MTP SDM845 panel seems to need additional delay to bring panel
> to a workable state. Running modetest without this change displays
> blurry artifacts.
> 
> Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>

added to drm-misc-next

	Sam

> ---
>  drivers/gpu/drm/panel/panel-truly-nt35597.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c
> index fc2a66c53db4..aa7153fd3be4 100644
> --- a/drivers/gpu/drm/panel/panel-truly-nt35597.c
> +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c
> @@ -280,6 +280,7 @@ static int truly_35597_power_on(struct truly_nt35597 *ctx)
>  	gpiod_set_value(ctx->reset_gpio, 1);
>  	usleep_range(10000, 20000);
>  	gpiod_set_value(ctx->reset_gpio, 0);
> +	usleep_range(10000, 20000);
>  
>  	return 0;
>  }
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2019-06-05  8:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-27 10:26 [PATCH 1/1] drm/panel: truly: Add additional delay after pulling down reset gpio Vivek Gautam
2019-05-28  8:43 ` Marc Gonzalez
2019-05-29  5:57   ` Vivek Gautam
2019-06-05  8:22 ` Sam Ravnborg [this message]
2019-06-06 11:18   ` Vivek Gautam

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