From: Paul Cercueil <paul@crapouillou.net>
Date: Wed, 14 Dec 2022 12:58:14 +0000 (+0100)
Subject: drm: bridge: it66121: Use regmap_noinc_read()
X-Git-Tag: v6.6.17~3937^2~23^2~1115
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=315c9fb770c3f5376518c45db1ac20ac769150dd;p=platform%2Fkernel%2Flinux-rpi.git

drm: bridge: it66121: Use regmap_noinc_read()

Use regmap_noinc_read() instead of reading the data from the DDC FIFO one
byte at a time.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221214125821.12489-4-paul@crapouillou.net
---

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index a698eec..1222284 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -589,13 +589,12 @@ static int it66121_get_edid_block(void *context, u8 *buf,
 		if (ret)
 			return ret;
 
-		do {
-			ret = regmap_read(ctx->regmap, IT66121_DDC_RD_FIFO_REG, &val);
-			if (ret)
-				return ret;
-			*(buf++) = val;
-			cnt--;
-		} while (cnt > 0);
+		ret = regmap_noinc_read(ctx->regmap, IT66121_DDC_RD_FIFO_REG,
+					buf, cnt);
+		if (ret)
+			return ret;
+
+		buf += cnt;
 	}
 
 	return 0;