From: CK Hu <ck.hu@mediatek.com>
To: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Chun-Kuang Hu" <chunkuang.hu@kernel.org>,
jitao.shi@mediatek.com, rex-bc.chen@mediatek.com
Cc: David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
kernel@collabora.com, linux-arm-kernel@lists.infradead.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: Re: [PATCH] drm/mediatek: dpi: Use mt8183 output formats for mt8192
Date: Fri, 8 Apr 2022 09:36:17 +0800 [thread overview]
Message-ID: <6afe7366ceffb77674d34c48f84aa85b1c088bc3.camel@mediatek.com> (raw)
In-Reply-To: <20220408011907.672120-1-nfraprado@collabora.com>
Hi, Jitao & Rex:
Please help to comment on this patch.
On Thu, 2022-04-07 at 21:19 -0400, Nícolas F. R. A. Prado wrote:
> The configuration for mt8192 was incorrectly using the output formats
> from mt8173. Since the output formats for mt8192 are instead the same
> ones as for mt8183, which require two bus samples per pixel, the
> pixelclock and DDR edge setting were misconfigured. This made
> external
> displays unable to show the image.
>
> Fix the issue by correcting the output format for mt8192 to be the
> same
> as for mt8183, fixing the usage of external displays for mt8192.
>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
>
> ---
>
> drivers/gpu/drm/mediatek/mtk_dpi.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 4554e2de1430..e61cd67b978f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -819,8 +819,8 @@ static const struct mtk_dpi_conf mt8192_conf = {
> .cal_factor = mt8183_calculate_factor,
> .reg_h_fre_con = 0xe0,
> .max_clock_khz = 150000,
> - .output_fmts = mt8173_output_fmts,
> - .num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
> + .output_fmts = mt8183_output_fmts,
> + .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
> };
>
> static int mtk_dpi_probe(struct platform_device *pdev)
next prev parent reply other threads:[~2022-04-08 1:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 1:19 [PATCH] drm/mediatek: dpi: Use mt8183 output formats for mt8192 Nícolas F. R. A. Prado
2022-04-08 1:36 ` CK Hu [this message]
2022-04-08 1:43 ` Nícolas F. R. A. Prado
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