Re: [PATCH v2 00/12] drm/bridge: tc358768: Fixes and timings improvements

From: Péter Ujfalusi
Date: Mon Aug 21 2023 - 15:46:39 EST




On 16/08/2023 14:25, Tomi Valkeinen wrote:
> This series contains various fixes and cleanups for TC358768. The target
> of this work is to get TC358768 working on Toradex's AM62 based board,
> which has the following display pipeline:
>
> AM62 DPI -> TC358768 -> LT8912B -> HDMI connector
>
> The main thing the series does is to improve the DSI HSW, HFP and VSDly
> calculations.

Thanks Tomi for the updates, I cannot test it or verify against the
datasheet, but codewise the series looks nice:

Reviewed-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>

>
> Tomi
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Add "drm/tegra: rgb: Parameterize V- and H-sync polarities" so that
> Tegra can configure the polarities correctly.
> - Add "drm/bridge: tc358768: Default to positive h/v syncs" as we don't
> (necessarily) have the polarities set in the mode.
> - Drop "drm/bridge: tc358768: Add DRM_BRIDGE_ATTACH_NO_CONNECTOR
> support" as it's not needed for DRM_BRIDGE_ATTACH_NO_CONNECTOR
> support.
> - Link to v1: https://lore.kernel.org/r/20230804-tc358768-v1-0-1afd44b7826b@xxxxxxxxxxxxxxxx
>
> ---
> Thierry Reding (1):
> drm/tegra: rgb: Parameterize V- and H-sync polarities
>
> Tomi Valkeinen (11):
> drm/bridge: tc358768: Fix use of uninitialized variable
> drm/bridge: tc358768: Fix bit updates
> drm/bridge: tc358768: Cleanup PLL calculations
> drm/bridge: tc358768: Use struct videomode
> drm/bridge: tc358768: Print logical values, not raw register values
> drm/bridge: tc358768: Use dev for dbg prints, not priv->dev
> drm/bridge: tc358768: Rename dsibclk to hsbyteclk
> drm/bridge: tc358768: Clean up clock period code
> drm/bridge: tc358768: Fix tc358768_ns_to_cnt()
> drm/bridge: tc358768: Attempt to fix DSI horizontal timings
> drm/bridge: tc358768: Default to positive h/v syncs
>
> drivers/gpu/drm/bridge/tc358768.c | 381 ++++++++++++++++++++++++++++----------
> drivers/gpu/drm/tegra/rgb.c | 16 +-
> 2 files changed, 295 insertions(+), 102 deletions(-)
> ---
> base-commit: 4d49d87b3606369c6e29b9d051892ee1a6fc4e75
> change-id: 20230804-tc358768-1b6949ef2e3d
>
> Best regards,

--
Péter