Re: [PATCH v8 0/7] Add support for XLCDC to sam9x7 SoC family.

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Hi, Manikandan,

On 21.02.2024 07:35, Manikandan Muralidharan wrote:
> This patch series aims to add support for XLCDC IP of sam9x7 SoC family
> to the DRM subsystem.XLCDC IP has additional registers and new
> configuration bits compared to the existing register set of HLCDC IP.
> The new compatible string "microchip,sam9x75-xlcdc" is defined for sam9x75
> variant of the sam9x7 SoC family.The is_xlcdc flag under driver data and
> IP specific driver ops helps to differentiate the XLCDC and existing HLCDC
> code within the same driver.
> 
> changes in v8:
> * Re-arrange the patch set to prepare and update the current HLCDC
> code base with the new LCDC IP based driver ops and then add support
> for XLCDC code changes.
> * Fix Cosmetic issues.
> 
> changes in v7:
> * LCDC IP driver ops functions are declared static and its 
> declaration are removed.
> 
> changes in v6:
> * Fixed Cosmetic defects.
> * Added comments for readability.
> 
> changes in v5:
> * return value of regmap_read_poll_timeout is checked in failure
> case.
> * HLCDC and XLCDC specific driver functions are now invoked
> using its IP specific driver ops w/o the need of checking is_xlcdc flag.
> * Removed empty spaces and blank lines.
> 
> changes in v4:
> * fixed kernel warnings reported by kernel test robot.
> 
> changes in v3:
> * Removed de-referencing the value of is_xlcdc flag multiple times in
> a single function.
> * Removed cpu_relax() call when using regmap_read_poll_timeout.
> * Updated xfactor and yfactor equations using shift operators
> * Defined CSC co-efficients in an array for code readability.
> 
> changes in v2:
> * Change the driver compatible name from "microchip,sam9x7-xlcdc" to
> "microchip,sam9x75-xlcdc".
> * Move is_xlcdc flag to driver data.
> * Remove unsed Macro definitions.
> * Add co-developed-bys tags
> * Replace regmap_read() with regmap_read_poll_timeout() call
> * Split code into two helpers for code readablitity.
> ---
> 
> Durai Manickam KR (1):
>   drm: atmel-hlcdc: Define XLCDC specific registers
> 
> Manikandan Muralidharan (6):
>   drm: atmel-hlcdc: add driver ops to differentiate HLCDC and XLCDC IP
>   drm: atmel_hlcdc: Add support for XLCDC using IP specific driver ops
>   drm: atmel-hlcdc: add DPI mode support for XLCDC
>   drm: atmel-hlcdc: add vertical and horizontal scaling support for
>     XLCDC
>   drm: atmel-hlcdc: add support for DSI output formats
>   drm: atmel-hlcdc: add LCD controller layer definition for sam9x75
> 

Only minor comments from me (check individual patches). W/ or w/o those
addressed you can add:

Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxx>




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