[PATCH V2 12/12] drm: bridge: icn6211: Read and validate chip IDs before configuration

[Maxime Ripard]

On Thu, Feb 17, 2022 at 01:25:30AM +0100, Marek Vasut wrote:
> Read out the Vendor/Chip/Version ID registers from the chip before
> performing any configuration, and validate that the registers have
> correct values. This is mostly a simple test whether DSI register
> access does work, since that tends to be broken on various bridges.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Jagan Teki <jagan at amarulasolutions.com>
> Cc: Maxime Ripard <maxime at cerno.tech>
> Cc: Robert Foss <robert.foss at linaro.org>
> Cc: Sam Ravnborg <sam at ravnborg.org>
> Cc: Thomas Zimmermann <tzimmermann at suse.de>
> To: dri-devel at lists.freedesktop.org

Acked-by: Maxime Ripard <maxime at cerno.tech>

Maxime
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