[PATCH 2/3] drm/sun4i: sun8i_csc: Simplify register writes

[Jernej Skrabec]

It turns out addition of 0x200 to constant parts (+0.5) is not really
necessary. Besides, we can consider that before and fix value in CSC
matrix.

This simplifies register writes quiet a bit.

Signed-off-by: Jernej Skrabec <jernej.skra...@siol.net>
---
 drivers/gpu/drm/sun4i/sun8i_csc.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.c 
b/drivers/gpu/drm/sun4i/sun8i_csc.c
index b8c059f1a118..e07b7876d89b 100644
--- a/drivers/gpu/drm/sun4i/sun8i_csc.c
+++ b/drivers/gpu/drm/sun4i/sun8i_csc.c
@@ -69,7 +69,7 @@ static void sun8i_csc_set_coefficients(struct regmap *map, 
u32 base,
                                       enum sun8i_csc_mode mode)
 {
        const u32 *table;
-       int i, data;
+       u32 base_reg;
 
        switch (mode) {
        case SUN8I_CSC_MODE_YUV2RGB:
@@ -83,13 +83,8 @@ static void sun8i_csc_set_coefficients(struct regmap *map, 
u32 base,
                return;
        }
 
-       for (i = 0; i < 12; i++) {
-               data = table[i];
-               /* For some reason, 0x200 must be added to constant parts */
-               if (((i + 1) & 3) == 0)
-                       data += 0x200;
-               regmap_write(map, SUN8I_CSC_COEFF(base, i), data);
-       }
+       base_reg = SUN8I_CSC_COEFF(base, 0);
+       regmap_bulk_write(map, base_reg, table, 12);
 }
 
 static void sun8i_de3_ccsc_set_coefficients(struct regmap *map, int layer,
-- 
2.22.0