[PATCH 5/7] drm: bridge: tc358767: Add more volatile registers

Alexander Stein alexander.stein at ew.tq-group.com
Thu Aug 17 08:00:43 UTC 2023


These registers might change their value without any host write operation.

Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>
---
 drivers/gpu/drm/bridge/tc358767.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index b56dd3861dc2a..f1d9deabae39b 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2047,9 +2047,16 @@ static bool tc_readable_reg(struct device *dev, unsigned int reg)
 }
 
 static const struct regmap_range tc_volatile_ranges[] = {
+	regmap_reg_range(PPI_BUSYPPI, PPI_BUSYPPI),
+	regmap_reg_range(DSI_BUSYDSI, DSI_BUSYDSI),
+	regmap_reg_range(DSI_LANESTATUS0, DSI_INTSTATUS),
+	regmap_reg_range(DSIERRCNT, DSIERRCNT),
 	regmap_reg_range(VFUEN0, VFUEN0),
+	regmap_reg_range(SYSSTAT, SYSSTAT),
 	regmap_reg_range(GPIOI, GPIOI),
 	regmap_reg_range(INTSTS_G, INTSTS_G),
+	regmap_reg_range(DP0_VMNGENSTATUS, DP0_VMNGENSTATUS),
+	regmap_reg_range(DP0_AMNGENSTATUS, DP0_AMNGENSTATUS),
 	regmap_reg_range(DP0_AUXWDATA(0), DP0_AUXSTATUS),
 	regmap_reg_range(DP0_LTSTAT, DP0_SNKLTCHGREQ),
 	regmap_reg_range(DP_PHY_CTRL, DP_PHY_CTRL),
-- 
2.34.1



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