[PATCH RESEND 2/3] drm: adv7511: mark ADV7511_REG_EDID_READ_CTRL volatile

[Laurent Pinchart]

Hi Wolfram,

Thank you for the patch.

On Monday 04 January 2016 03:33:46 Wolfram Sang wrote:
> From: Wolfram Sang <wsa+renesas at 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 at sang-engineering.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

A small note though, even though the patch is correct, it will be of limited 
use as the EDID_READ_CTRL register is never accessed by the driver.

> ---
>  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:

-- 
Regards,

Laurent Pinchart