From: Gary Bisson <bisson.gary@gmail.com>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: chunkuang.hu@kernel.org, p.zabel@pengutronix.de,
airlied@gmail.com, simona@ffwll.ch, matthias.bgg@gmail.com,
dri-devel@lists.freedesktop.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, kernel@collabora.com
Subject: Re: [PATCH] drm/mediatek: mtk_dsi: Add support for High Speed (HS) mode
Date: Thu, 8 Jan 2026 17:30:15 +0100 [thread overview]
Message-ID: <aV_bl8c3tMpih9s_@owl5> (raw)
In-Reply-To: <20260108101959.14872-1-angelogioacchino.delregno@collabora.com>
On Thu, Jan 08, 2026 at 11:19:59AM +0100, AngeloGioacchino Del Regno wrote:
> Up until now, the MediaTek DSI Controller has always been working
> in Low Power Mode (LPM), as this driver has always ignored the
> MIPI_DSI_MSG_USE_LPM flag hence never setting HS mode.
>
> In the current state of the driver the only thing that is needed
> to add support for DSI High Speed (HS) transmit is to simply set
> the "HSTX" config bit in the configuration register.
>
> Check if flag MIPI_DSI_MSG_USE_LPM is set and, if not, set HSTX.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Gary Bisson <bisson.gary@gmail.com>
This patch was needed for the TI SN65DSI83 DSI to LVDS bridge to work as
it requires HS mode.
Regards,
Gary
next prev parent reply other threads:[~2026-01-08 16:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-08 10:19 [PATCH] drm/mediatek: mtk_dsi: Add support for High Speed (HS) mode AngeloGioacchino Del Regno
2026-01-08 16:30 ` Gary Bisson [this message]
2026-01-16 8:15 ` CK Hu (胡俊光)
2026-01-16 23:51 ` Chun-Kuang Hu
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