[PATCH 1/2] drm/fimd: use DRM_ERROR instead of DRM_INFO in error case

[Ville Syrjälä]

On Mon, Apr 15, 2019 at 09:47:19AM +0900, Inki Dae wrote:
> This patch makes error messages to be printed out using DRM_ERROR
> instead of DRM_INFO.
> 
> Signed-off-by: Inki Dae <inki.dae at samsung.com>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_fimd.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> index 786a8ee..78427ec 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> @@ -400,7 +400,7 @@ static int fimd_atomic_check(struct exynos_drm_crtc *crtc,
>  	u32 clkdiv;
>  
>  	if (mode->clock == 0) {
> -		DRM_INFO("Mode has zero clock value.\n");
> +		DRM_ERROR("Mode has zero clock value.\n");
>  		return -EINVAL;
>  	}

This seems like it should likely have been caught by
drm_mode_convert_to_umode()->...->drm_mode_validate_basic().

>  
> @@ -416,7 +416,7 @@ static int fimd_atomic_check(struct exynos_drm_crtc *crtc,
>  
>  	lcd_rate = clk_get_rate(ctx->lcd_clk);
>  	if (2 * lcd_rate < ideal_clk) {
> -		DRM_INFO("sclk_fimd clock too low(%lu) for requested pixel clock(%lu)\n",
> +		DRM_ERROR("sclk_fimd clock too low(%lu) for requested pixel clock(%lu)\n",
>  			 lcd_rate, ideal_clk);

These look like they could user triggerable, in which case they should
be debug messages instead.

>  		return -EINVAL;
>  	}
> @@ -424,7 +424,7 @@ static int fimd_atomic_check(struct exynos_drm_crtc *crtc,
>  	/* Find the clock divider value that gets us closest to ideal_clk */
>  	clkdiv = DIV_ROUND_CLOSEST(lcd_rate, ideal_clk);
>  	if (clkdiv >= 0x200) {
> -		DRM_INFO("requested pixel clock(%lu) too low\n", ideal_clk);
> +		DRM_ERROR("requested pixel clock(%lu) too low\n", ideal_clk);
>  		return -EINVAL;
>  	}
>  
> -- 
> 2.7.4
> 
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-- 
Ville Syrjälä
Intel