On Wed, Jan 04, 2017 at 08:42:27PM +0200, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> To make life easier let's allow skl_plane_stride() to be called for the
> AUX surface even when there is no AUX surface. Avoids special cases in
> the callers.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_display.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 4d514ca1da88..bc398743e941 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -3261,7 +3261,12 @@ static void skl_detach_scalers(struct intel_crtc *intel_crtc)
> u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
> unsigned int rotation)
> {
> - u32 stride = intel_fb_pitch(fb, plane, rotation);
> + u32 stride;
> +
> + if (plane >= fb->format->num_planes)
> + return 0;
> +
> + stride = intel_fb_pitch(fb, plane, rotation);
>
> /*
> * The stride is either expressed as a multiple of 64 bytes chunks for
> --
> 2.10.2
>
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