drm: adv7511: Fix DDC error interrupt handling

commit 2e96206c upstream.

The DDC error interrupt bit is located in REG_INT1, not REG_INT0. Update
both the interrupt wait code and the interrupt sources reset code
accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/gpu/drm/i2c/adv7511.c

@@ -467,14 +467,16 @@ static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
 				     block);
 			ret = adv7511_wait_for_interrupt(adv7511,
 					ADV7511_INT0_EDID_READY |
-					ADV7511_INT1_DDC_ERROR, 200);
+					(ADV7511_INT1_DDC_ERROR << 8), 200);
 
 			if (!(ret & ADV7511_INT0_EDID_READY))
 				return -EIO;
 		}
 
 		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-			     ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR);
+			     ADV7511_INT0_EDID_READY);
+		regmap_write(adv7511->regmap, ADV7511_REG_INT(1),
+			     ADV7511_INT1_DDC_ERROR);
 
 		/* Break this apart, hopefully more I2C controllers will
 		 * support 64 byte transfers than 256 byte transfers
@@ -528,7 +530,9 @@ static int adv7511_get_modes(struct drm_encoder *encoder,
 	/* Reading the EDID only works if the device is powered */
 	if (adv7511->dpms_mode != DRM_MODE_DPMS_ON) {
 		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-			     ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR);
+			     ADV7511_INT0_EDID_READY);
+		regmap_write(adv7511->regmap, ADV7511_REG_INT(1),
+			     ADV7511_INT1_DDC_ERROR);
 		regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
 				   ADV7511_POWER_POWER_DOWN, 0);
 		adv7511->current_edid_segment = -1;
@@ -563,7 +567,9 @@ static void adv7511_encoder_dpms(struct drm_encoder *encoder, int mode)
 		adv7511->current_edid_segment = -1;
 
 		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-			     ADV7511_INT0_EDID_READY | ADV7511_INT1_DDC_ERROR);
+			     ADV7511_INT0_EDID_READY);
+		regmap_write(adv7511->regmap, ADV7511_REG_INT(1),
+			     ADV7511_INT1_DDC_ERROR);
 		regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
 				   ADV7511_POWER_POWER_DOWN, 0);
 		/*