drm/vc4: crtc: Turn static const variable into a define

The hvs_latency_pix variable doesn't need to be a variable and can just be
defined.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 4eedadd..7b08e6f 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -44,6 +44,8 @@
 #include "vc4_drv.h"
 #include "vc4_regs.h"
 
+#define HVS_FIFO_LATENCY_PIX   6
+
 #define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset))
 #define CRTC_READ(offset) readl(vc4_crtc->regs + (offset))
 
@@ -227,21 +229,21 @@ vc4_crtc_update_gamma_lut(struct drm_crtc *crtc)
        vc4_crtc_lut_load(crtc);
 }
 
+
 static u32 vc4_get_fifo_full_level(u32 format)
 {
        static const u32 fifo_len_bytes = 64;
-       static const u32 hvs_latency_pix = 6;
 
        switch (format) {
        case PV_CONTROL_FORMAT_DSIV_16:
        case PV_CONTROL_FORMAT_DSIC_16:
-               return fifo_len_bytes - 2 * hvs_latency_pix;
+               return fifo_len_bytes - 2 * HVS_FIFO_LATENCY_PIX;
        case PV_CONTROL_FORMAT_DSIV_18:
                return fifo_len_bytes - 14;
        case PV_CONTROL_FORMAT_24:
        case PV_CONTROL_FORMAT_DSIV_24:
        default:
-               return fifo_len_bytes - 3 * hvs_latency_pix;
+               return fifo_len_bytes - 3 * HVS_FIFO_LATENCY_PIX;
        }
 }