[PATCH 2/4] drm/i915/dmc_wl: Show description string for enable_dmc_wl

[Bhadane, Dnyaneshwar]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Gustavo
> Sousa
> Sent: Friday, December 20, 2024 3:44 AM
> To: intel-xe at lists.freedesktop.org; intel-gfx at lists.freedesktop.org
> Subject: [PATCH 2/4] drm/i915/dmc_wl: Show description string for
> enable_dmc_wl
> 
> We already provide the value resulting from sanitization of enable_dmc_wl in
> dmesg, however the reader will need to either have the meanings memorized or
> look them up in the parameter's documentation.
> Let's make things easier by providing a short human-readable name for the
> parameter in dmesg.
> 
> Signed-off-by: Gustavo Sousa <gustavo.sousa at intel.com>
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane at intel.com>

Dnyaneshwar
> ---
>  drivers/gpu/drm/i915/display/intel_dmc_wl.c | 18 ++++++++++++++++--
>  1 file changed, 16 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dmc_wl.c
> b/drivers/gpu/drm/i915/display/intel_dmc_wl.c
> index cff841521ca0..2315c6318b51 100644
> --- a/drivers/gpu/drm/i915/display/intel_dmc_wl.c
> +++ b/drivers/gpu/drm/i915/display/intel_dmc_wl.c
> @@ -279,6 +279,8 @@ static bool __intel_dmc_wl_supported(struct
> intel_display *display)
> 
>  static void intel_dmc_wl_sanitize_param(struct intel_display *display)  {
> +	const char *desc;
> +
>  	if (!HAS_DMC_WAKELOCK(display)) {
>  		display->params.enable_dmc_wl =
> ENABLE_DMC_WL_DISABLED;
>  	} else if (display->params.enable_dmc_wl < 0) { @@ -294,8 +296,20 @@
> static void intel_dmc_wl_sanitize_param(struct intel_display *display)
>  		    display->params.enable_dmc_wl < 0 ||
>  		    display->params.enable_dmc_wl >=
> ENABLE_DMC_WL_MAX);
> 
> -	drm_dbg_kms(display->drm, "Sanitized enable_dmc_wl value: %d\n",
> -		    display->params.enable_dmc_wl);
> +	switch (display->params.enable_dmc_wl) {
> +	case ENABLE_DMC_WL_DISABLED:
> +		desc = "disabled";
> +		break;
> +	case ENABLE_DMC_WL_ENABLED:
> +		desc = "enabled";
> +		break;
> +	default:
> +		desc = "unknown";
> +		break;
> +	}
> +
> +	drm_dbg_kms(display->drm, "Sanitized enable_dmc_wl value: %d
> (%s)\n",
> +		    display->params.enable_dmc_wl, desc);
>  }
> 
>  void intel_dmc_wl_init(struct intel_display *display)
> --
> 2.47.1