From c277fa02d5177aa7b402b365e36bec3ec5d72637 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Tue, 31 Aug 2021 20:48:19 +0200
Subject: drm/sun4i: Fix macros in sun8i_csc.h
Git-commit: c302c98da646409d657a473da202f10f417f3ff1
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Macros SUN8I_CSC_CTRL() and SUN8I_CSC_COEFF() don't follow usual
recommendation of having arguments enclosed in parenthesis. While that
didn't change anything for quite sometime, it actually become important
after CSC code rework with commit ea067aee45a8 ("drm/sun4i: de2/de3:
Remove redundant CSC matrices").
Without this fix, colours are completely off for supported YVU formats
on SoCs with DE2 (A64, H3, R40, etc.).
Fix the issue by enclosing macro arguments in parenthesis.
Cc: stable@vger.kernel.org # 5.12+
Fixes: 883029390550 ("drm/sun4i: Add DE2 CSC library")
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210831184819.93670-1-jernej.skrabec@gmail.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/sun4i/sun8i_csc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.h b/drivers/gpu/drm/sun4i/sun8i_csc.h
index a55a38ad849c..022cafa6c06c 100644
--- a/drivers/gpu/drm/sun4i/sun8i_csc.h
+++ b/drivers/gpu/drm/sun4i/sun8i_csc.h
@@ -16,8 +16,8 @@ struct sun8i_mixer;
#define CCSC10_OFFSET 0xA0000
#define CCSC11_OFFSET 0xF0000
-#define SUN8I_CSC_CTRL(base) (base + 0x0)
-#define SUN8I_CSC_COEFF(base, i) (base + 0x10 + 4 * i)
+#define SUN8I_CSC_CTRL(base) ((base) + 0x0)
+#define SUN8I_CSC_COEFF(base, i) ((base) + 0x10 + 4 * (i))
#define SUN8I_CSC_CTRL_EN BIT(0)
--
2.38.1