[PATCH 3/3] media: imx: imx7-media-csi: Clear BIT_MIPI_DOUBLE_CMPNT for <16b formats

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

Commit 9babbbaaeb87 ("media: imx: imx7-media-csi: Use dual sampling for
YUV 1X16") set BIT_MIPI_DOUBLE_CMPNT in the CR18 register for 16-bit YUV
formats in imx7_csi_configure(). The CR18 register is always updated
with read-modify-write cycles, so if a 16-bit YUV format is selected,
the bit will stay set forever, even if the format is changed. Fix it by
clearing the bit at the beginning of the imx7_csi_configure() function.

While at it, swap two of the bits being cleared to match the MSB to LSB
order. This doesn't cause any functional change.

Fixes: 9babbbaaeb87 ("media: imx: imx7-media-csi: Use dual sampling for YUV 1X16")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/staging/media/imx/imx7-media-csi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
index 03986445c0da..21d6e56ffcd4 100644
--- a/drivers/staging/media/imx/imx7-media-csi.c
+++ b/drivers/staging/media/imx/imx7-media-csi.c
@@ -522,9 +522,9 @@ static void imx7_csi_configure(struct imx7_csi *csi)
 	cr18 = imx7_csi_reg_read(csi, CSI_CSICR18);
 
 	cr18 &= ~(BIT_CSI_HW_ENABLE | BIT_MIPI_DATA_FORMAT_MASK |
-		  BIT_DATA_FROM_MIPI | BIT_BASEADDR_CHG_ERR_EN |
-		  BIT_BASEADDR_SWITCH_EN | BIT_BASEADDR_SWITCH_SEL |
-		  BIT_DEINTERLACE_EN);
+		  BIT_DATA_FROM_MIPI | BIT_MIPI_DOUBLE_CMPNT |
+		  BIT_BASEADDR_CHG_ERR_EN | BIT_BASEADDR_SWITCH_SEL |
+		  BIT_BASEADDR_SWITCH_EN | BIT_DEINTERLACE_EN);
 
 	if (out_pix->field == V4L2_FIELD_INTERLACED) {
 		cr18 |= BIT_DEINTERLACE_EN;
-- 
Regards,

Laurent Pinchart