drm/panel: ili9322: Remove redundant volatle_reg() operation

The ili9322 driver has a volatile_reg() operation in it's regmap which
always returns false. This is redundant since it is the default in the
regmap core, remove the operation for a trivial code size and performance
improvement.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231001-drm-sn65dsi83-maple-v1-1-5519799a55e5@kernel.org

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9322.c b/drivers/gpu/drm/panel/panel-ilitek-ili9322.c
index 61c872f0f7ca882c6e83b22b07f42948b1987ed6..15b81e5228b5d823455fdc0958ce393dda58cae9 100644 (file)
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9322.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9322.c
@@ -325,11 +325,6 @@ static struct regmap_bus ili9322_regmap_bus = {
        .val_format_endian_default = REGMAP_ENDIAN_BIG,
 };
 
-static bool ili9322_volatile_reg(struct device *dev, unsigned int reg)
-{
-       return false;
-}
-
 static bool ili9322_writeable_reg(struct device *dev, unsigned int reg)
 {
        /* Just register 0 is read-only */
@@ -343,7 +338,6 @@ static const struct regmap_config ili9322_regmap_config = {
        .val_bits = 8,
        .max_register = 0x44,
        .cache_type = REGCACHE_RBTREE,
-       .volatile_reg = ili9322_volatile_reg,
        .writeable_reg = ili9322_writeable_reg,
 };