V4L/DVB (11527): gspca - m5602-s5k4aa: Try to use proper read-modify-write of the vflip/hflip

Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
index 41f6956e3af4..317bc32e758d 100644
--- a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
+++ b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c
@@ -374,6 +374,10 @@ static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
         if (err < 0)
                 return err;
 
+        err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
+        if (err < 0)
+                return err;
+
         if (dmi_check_system(s5k4aa_vflip_dmi_table))
                 val = !val;
 
@@ -433,6 +437,10 @@ static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
         if (err < 0)
                 return err;
 
+        err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
+        if (err < 0)
+                return err;
+
         data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6));
         err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
         if (err < 0)