[RESEND PATCH 03/28] drm/imx: Make pipe number unsigned

[Boris Brezillon]

From: Thierry Reding <treding at nvidia.com>

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 at pengutronix.de>
Acked-by: Philipp Zabel <p.zabel at pengutronix.de>
Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/gpu/drm/imx/imx-drm-core.c | 6 +++---
 drivers/gpu/drm/imx/imx-drm.h      | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index 09e20ea..9211473 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -39,13 +39,13 @@ struct imx_drm_component {
 struct imx_drm_device {
 	struct drm_device			*drm;
 	struct imx_drm_crtc			*crtc[MAX_CRTC];
-	int					pipes;
+	unsigned int				pipes;
 	struct drm_fbdev_cma			*fbhelper;
 };
 
 struct imx_drm_crtc {
 	struct drm_crtc				*crtc;
-	int					pipe;
+	unsigned int				pipe;
 	struct imx_drm_crtc_helper_funcs	imx_drm_helper_funcs;
 };
 
@@ -54,7 +54,7 @@ static int legacyfb_depth = 16;
 module_param(legacyfb_depth, int, 0444);
 #endif
 
-int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
+unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
 {
 	return crtc->pipe;
 }
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 drm_plane;
 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);
-- 
2.1.4