drm/imx: Make pipe number unsigned
There's no reason whatsoever why this should ever be negative. The same
goes for the number of pipes added to the DRM device.
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-4-git-send-email-boris.brezillon@free-electrons.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/imx/imx-drm.h b/drivers/gpu/drm/imx/imx-drm.h
index 83284b4..71cf6d9 100644
--- a/drivers/gpu/drm/imx/imx-drm.h
+++ b/drivers/gpu/drm/imx/imx-drm.h
@@ -13,7 +13,7 @@
struct imx_drm_crtc;
struct platform_device;
-int imx_drm_crtc_id(struct imx_drm_crtc *crtc);
+unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc);
struct imx_drm_crtc_helper_funcs {
int (*enable_vblank)(struct drm_crtc *crtc);