openwrt/target/linux/bcm27xx/patches-5.4/950-0550-drm-vc4-crtc-Turn-static-const-variable-into-a-defin.patch

From c017882242d671cf81256301a3e9a6fc9eefdc13 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Mon, 13 Jan 2020 13:39:32 +0100
Subject: [PATCH] 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>
---
 drivers/gpu/drm/vc4/vc4_crtc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- 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_crt
 	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;
 	}
 }