From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Date: Fri, 08 Jan 2016 21:56:49 +0000 Subject: [PATCH v2 2/3] drm: adv7511: mark ADV7511_REG_EDID_READ_CTRL volatile Message-Id: <1452290210-20629-3-git-send-email-wsa@the-dreams.de> List-Id: References: <1452290210-20629-1-git-send-email-wsa@the-dreams.de> In-Reply-To: <1452290210-20629-1-git-send-email-wsa@the-dreams.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: dri-devel@lists.freedesktop.org, Laurent Pinchart Cc: linux-sh@vger.kernel.org, Daniel Vetter , Wolfram Sang , Magnus Damm , Kuninori Morimoto From: Wolfram Sang 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 Reviewed-by: Laurent Pinchart Tested-by: Archit Taneja --- 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 db7435a4517fb4..e1756a452d6980 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: -- 2.1.4