drm/rockchip/rk628: dsi: Fix volatile register offset

bivvy · bivvy · commit f731f943503e · 2020-10-26T11:14:55.000+08:00
Change-Id: Icc6775a9ff4b4bf267866a242b7427f8b228a23c
Signed-off-by: Wyon Bi &lt;bivvy.bi@rock-chips.com&gt;
diff --git a/drivers/gpu/drm/rockchip/rk628/rk628_dsi.c b/drivers/gpu/drm/rockchip/rk628/rk628_dsi.c
@@ -1233,6 +1233,8 @@ static const struct regmap_config testif_regmap_config = {
 
 static bool rk628_dsi_register_volatile(struct device *dev, unsigned int reg)
 {
+	reg &= 0xffff;
+
 	switch (reg) {
 	case DSI_GEN_HDR:
 	case DSI_GEN_PLD_DATA:

Original file line number	Diff line number	Diff line change
`@@ -1233,6 +1233,8 @@ static const struct regmap_config testif_regmap_config = {`
`1233`	`1233`
`1234`	`1234`	`static bool rk628_dsi_register_volatile(struct device *dev, unsigned int reg)`
`1235`	`1235`	`{`
	`1236`	`+ reg &= 0xffff;`
	`1237`	`+`
`1236`	`1238`	`switch (reg) {`
`1237`	`1239`	`case DSI_GEN_HDR:`
`1238`	`1240`	`case DSI_GEN_PLD_DATA:`