linux-kernel - Re: [PATCH v5 10/10] drm/bridge: it6505: add I2C functionality on AUX

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Message-ID: <3s2bl6zruppjldqrjyfcn2pkrwptbwxo2rkrludczvtbnivdiw@6cy7523bmaww>
Date: Mon, 14 Oct 2024 14:58:01 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Hermes Wu <Hermes.Wu@....com.tw>
Cc: Pin-yen Lin <treapking@...omium.org>, 
	Kenneth Hung <Kenneth.hung@....com.tw>, Pet Weng <Pet.Weng@....com.tw>, 
	Andrzej Hajda <andrzej.hajda@...el.com>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Robert Foss <rfoss@...nel.org>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
	Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, "open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>, 
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 10/10] drm/bridge: it6505: add I2C functionality on AUX

On Tue, Oct 01, 2024 at 02:45:50PM +0800, Hermes Wu wrote:
> From: Hermes Wu <Hermes.wu@....com.tw>
> 
> DisplayPort AUX protocol supports I2C transport which is capable of reading EDID or supports MCCS.
> 
> In drm_dp_helper, drm_dp_i2c_xfer() packs I2C requests into a sequence of AUX requests.
> it6505_aux_i2c_operation() is implemented to match drm_dp_i2c_xfer() behavior.
> it6505_aux_i2c_transfer() adds I2C functionality for  it6505_aux_transfer().
> 
> Signed-off-by: Hermes Wu <Hermes.wu@....com.tw>
> ---
>  drivers/gpu/drm/bridge/ite-it6505.c | 177 +++++++++++++++++++++++++++-
>  1 file changed, 175 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
-- 
With best wishes
Dmitry