mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-03 20:34:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

media: imx: imx7-media-csi: Simplify imx7_csi_rx_fifo_clear()

Browse Source 
There's no need to read the CSICR1 register before each write in
imx7_csi_rx_fifo_clear(). Simplify the function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Laurent Pinchart
2021-02-15 05:27:14 +01:00
committed by Mauro Carvalho Chehab
parent b5cbab5e1a
commit bc023b5a33
1 changed files with 2 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/staging/media/imx/imx7-media-csi.c
View File

@@ -294,14 +294,10 @@ static void imx7_csi_dma_reflash(struct imx7_csi *csi)
static void imx7_csi_rx_fifo_clear(struct imx7_csi *csi)
{
u32 cr1;
u32 cr1 = imx7_csi_reg_read(csi, CSI_CSICR1) & ~BIT_FCC;
cr1 = imx7_csi_reg_read(csi, CSI_CSICR1);
imx7_csi_reg_write(csi, cr1 & ~BIT_FCC, CSI_CSICR1);
cr1 = imx7_csi_reg_read(csi, CSI_CSICR1);
imx7_csi_reg_write(csi, cr1, CSI_CSICR1);
imx7_csi_reg_write(csi, cr1 | BIT_CLR_RXFIFO, CSI_CSICR1);
cr1 = imx7_csi_reg_read(csi, CSI_CSICR1);
imx7_csi_reg_write(csi, cr1 | BIT_FCC, CSI_CSICR1);
}