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Subject[PATCH 04/10] drm: bridge: it66121: Write AVI infoframe with regmap_bulk_write()
Date
Since all AVI infoframe registers are contiguous in the address space,
the AVI infoframe can be written in one go with regmap_bulk_write().

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/gpu/drm/bridge/ite-it66121.c | 27 +++++++--------------------
1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 12222840df30..0a4fdfd7af44 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -773,24 +773,9 @@ void it66121_bridge_mode_set(struct drm_bridge *bridge,
const struct drm_display_mode *mode,
const struct drm_display_mode *adjusted_mode)
{
- int ret, i;
u8 buf[HDMI_INFOFRAME_SIZE(AVI)];
struct it66121_ctx *ctx = container_of(bridge, struct it66121_ctx, bridge);
- const u16 aviinfo_reg[HDMI_AVI_INFOFRAME_SIZE] = {
- IT66121_AVIINFO_DB1_REG,
- IT66121_AVIINFO_DB2_REG,
- IT66121_AVIINFO_DB3_REG,
- IT66121_AVIINFO_DB4_REG,
- IT66121_AVIINFO_DB5_REG,
- IT66121_AVIINFO_DB6_REG,
- IT66121_AVIINFO_DB7_REG,
- IT66121_AVIINFO_DB8_REG,
- IT66121_AVIINFO_DB9_REG,
- IT66121_AVIINFO_DB10_REG,
- IT66121_AVIINFO_DB11_REG,
- IT66121_AVIINFO_DB12_REG,
- IT66121_AVIINFO_DB13_REG
- };
+ int ret;

mutex_lock(&ctx->lock);

@@ -810,10 +795,12 @@ void it66121_bridge_mode_set(struct drm_bridge *bridge,
}

/* Write new AVI infoframe packet */
- for (i = 0; i < HDMI_AVI_INFOFRAME_SIZE; i++) {
- if (regmap_write(ctx->regmap, aviinfo_reg[i], buf[i + HDMI_INFOFRAME_HEADER_SIZE]))
- goto unlock;
- }
+ ret = regmap_bulk_write(ctx->regmap, IT66121_AVIINFO_DB1_REG,
+ &buf[HDMI_INFOFRAME_HEADER_SIZE],
+ HDMI_AVI_INFOFRAME_SIZE);
+ if (ret)
+ goto unlock;
+
if (regmap_write(ctx->regmap, IT66121_AVIINFO_CSUM_REG, buf[3]))
goto unlock;

--
2.35.1
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