[PATCH V2 02/12] drm: bridge: icn6211: Fix HFP_HSW_HBP_HI and HFP_MIN handling

[Maxime Ripard]

On Thu, Feb 17, 2022 at 01:25:20AM +0100, Marek Vasut wrote:
> The HFP_HSW_HBP_HI register must be programmed with 2 LSbits of each
> Horizontal Front Porch/Sync/Back Porch. Currently the driver programs
> this register to 0, which breaks displays with either value above 255.
> 
> The HFP_MIN register must be set to the same value as HFP_LI, otherwise
> there is visible image distortion, usually in the form of missing lines
> at the bottom of the panel.
> 
> Fix this by correctly programming the HFP_HSW_HBP_HI and HFP_MIN registers.
> 
> Fixes: ce517f18944e3 ("drm: bridge: Add Chipone ICN6211 MIPI-DSI to RGB bridge")
> 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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