Re: [PATCH 01/11] [v3] drm/i915: Introduce vfunc intel_get_color_config to create hw lut

[Jani Nikula <jani.nikula@intel.com>]

On Mon, 15 Apr 2019, Swati Sharma <swati2.sharma@intel.com> wrote:
> v3: Rebase
>
> Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h    | 1 +
>  drivers/gpu/drm/i915/intel_color.c | 7 +++++++
>  drivers/gpu/drm/i915/intel_color.h | 1 +
>  3 files changed, 9 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 63eca30..69ed05c 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -342,6 +342,7 @@ struct drm_i915_display_funcs {
>  	 * involved with the same commit.
>  	 */
>  	void (*load_luts)(const struct intel_crtc_state *crtc_state);
> +	void (*get_color_config)(struct intel_crtc_state *crtc_state);
>  };
>  
>  #define CSR_VERSION(major, minor)	((major) << 16 | (minor))
> diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
> index ca341a9..321cf52 100644
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@ -857,6 +857,13 @@ int intel_color_check(struct intel_crtc_state *crtc_state)
>  	return dev_priv->display.color_check(crtc_state);
>  }
>  
> +void intel_get_color_config(struct intel_crtc_state *crtc_state)

Please call it intel_color_get_config.

Going forward, I'm going to push towards prefixing functions based on
the source filename. intel_foo.c -> intel_foo_bar().

You're not using this function anywhere... you only add that in patch
10/11. I'd rather see you add the user early on, and add the support
platform by platform incrementally.

> +{
> +	struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
> +
> +	dev_priv->display.get_color_config(crtc_state);

I.e. wrap this in if (dev_priv->display.get_color_config) and you'll be
able to call the function right away, regardless of the platform.

BR,
Jani.

> +}
> +
>  static bool need_plane_update(struct intel_plane *plane,
>  			      const struct intel_crtc_state *crtc_state)
>  {
> diff --git a/drivers/gpu/drm/i915/intel_color.h b/drivers/gpu/drm/i915/intel_color.h
> index b8a3ce6..7ca304f 100644
> --- a/drivers/gpu/drm/i915/intel_color.h
> +++ b/drivers/gpu/drm/i915/intel_color.h
> @@ -13,5 +13,6 @@
>  int intel_color_check(struct intel_crtc_state *crtc_state);
>  void intel_color_commit(const struct intel_crtc_state *crtc_state);
>  void intel_color_load_luts(const struct intel_crtc_state *crtc_state);
> +void intel_get_color_config(struct intel_crtc_state *crtc_state);
>  
>  #endif /* __INTEL_COLOR_H__ */

-- 
Jani Nikula, Intel Open Source Graphics Center
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