[PATCH v5 04/13] dm: video: Add damage tracking API

[Alper Nebi Yasak]

On 2023-08-21 22:11 +03:00, Simon Glass wrote:
> On Mon, 21 Aug 2023 at 07:51, Alper Nebi Yasak <alpernebiyasak at gmail.com> wrote:
>>
>> From: Alexander Graf <agraf at csgraf.de>
>>
>> We are going to introduce image damage tracking to fasten up screen
>> refresh on large displays. This patch adds damage tracking for up to
>> one rectangle of the screen which is typically enough to hold blt or
>> text print updates. Callers into this API and a reduced dcache flush
>> code path will follow in later patches.
>>
>> Signed-off-by: Alexander Graf <agraf at csgraf.de>
>> Reported-by: Da Xue <da at libre.computer>
>> [Alper: Use xstart/yend, document new fields, return void from
>>         video_damage(), declare priv, drop headers, use IS_ENABLED()]
>> Co-developed-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>
>> Signed-off-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>
>> ---
>>
>> Changes in v5:
>> - Use xstart, ystart, xend, yend as names for damage region
>> - Document damage struct and fields in struct video_priv comment
>> - Return void from video_damage()
>> - Fix undeclared priv error in video_sync()
>> - Drop unused headers from video-uclass.c
>> - Use IS_ENABLED() instead of CONFIG_IS_ENABLED()
>>
>> Changes in v4:
>> - Move damage clear to patch "dm: video: Add damage tracking API"
>> - Simplify first damage logic
>> - Remove VIDEO_DAMAGE default for ARM
>>
>> Changes in v3:
>> - Adapt to always assume DM is used
>>
>> Changes in v2:
>> - Remove ifdefs
>>
>>  drivers/video/Kconfig        | 13 ++++++++++++
>>  drivers/video/video-uclass.c | 41 +++++++++++++++++++++++++++++++++---
>>  include/video.h              | 32 ++++++++++++++++++++++++++--
>>  3 files changed, 81 insertions(+), 5 deletions(-)
>>
> 
> Reviewed-by: Simon Glass <sjg at chromium.org>
> 
> But I suggest an empty static inline in the case where the feature is disabled?

You mean with something like #ifdef CONFIG_VIDEO_DAMAGE, right?