From: Wolfram Sang wsa+renesas@sang-engineering.com
This register includes a counter which is decremented by the chip on I2C failures. Also, it is reset when powering down.
Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com --- drivers/gpu/drm/i2c/adv7511.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/i2c/adv7511.c b/drivers/gpu/drm/i2c/adv7511.c index 85e994796d96a4..50a861b12346c4 100644 --- a/drivers/gpu/drm/i2c/adv7511.c +++ b/drivers/gpu/drm/i2c/adv7511.c @@ -136,6 +136,7 @@ static bool adv7511_register_volatile(struct device *dev, unsigned int reg) case ADV7511_REG_BKSV(3): case ADV7511_REG_BKSV(4): case ADV7511_REG_DDC_STATUS: + case ADV7511_REG_EDID_READ_CTRL: case ADV7511_REG_BSTATUS(0): case ADV7511_REG_BSTATUS(1): case ADV7511_REG_CHIP_ID_HIGH: