[PATCH 14/38] drm: rcar-du: Define macros for the max number of groups, CRTCs and LVDS

[Laurent Pinchart]

Let's avoid magic constants. Beside increasing code readability, it will
also ensure that no location will be forgotten when raising the maximum
number of groups, CRTCs or LVDS encoders

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_drv.h | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h 
b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
index c5b9ea6a7eaa..d1ede13cb1d5 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
@@ -64,6 +64,10 @@ struct rcar_du_device_info {
        unsigned int num_lvds;
 };

+#define RCAR_DU_MAX_CRTCS              3
+#define RCAR_DU_MAX_GROUPS             DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
+#define RCAR_DU_MAX_LVDS               2
+
 struct rcar_du_device {
        struct device *dev;
        const struct rcar_du_device_info *info;
@@ -73,13 +77,13 @@ struct rcar_du_device {
        struct drm_device *ddev;
        struct drm_fbdev_cma *fbdev;

-       struct rcar_du_crtc crtcs[3];
+       struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
        unsigned int num_crtcs;

-       struct rcar_du_group groups[2];
+       struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];

        unsigned int dpad0_source;
-       struct rcar_du_lvdsenc *lvds[2];
+       struct rcar_du_lvdsenc *lvds[RCAR_DU_MAX_LVDS];
 };

 static inline bool rcar_du_has(struct rcar_du_device *rcdu,
-- 
2.0.5