4.19-stable review patch. If anyone has any objections, please let me know.
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From: Hugues Fruchet hugues.fruchet@st.com
[ Upstream commit 985cdcb08a0488558d1005139596b64d73bee267 ]
Mode setting depends on last mode set, in particular because of exposure calculation when downscale mode change between subsampling and scaling. At stream on the last mode was wrongly set to current mode, so no change was detected and exposure calculation was not made, fix this.
Signed-off-by: Hugues Fruchet hugues.fruchet@st.com Reviewed-by: Jacopo Mondi jacopo@jmondi.org Tested-by: Jacopo Mondi jacopo@jmondi.org Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/i2c/ov5640.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
--- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -226,6 +226,7 @@ struct ov5640_dev { bool pending_fmt_change;
const struct ov5640_mode_info *current_mode; + const struct ov5640_mode_info *last_mode; enum ov5640_frame_rate current_fr; struct v4l2_fract frame_interval;
@@ -1614,10 +1615,10 @@ static int ov5640_set_mode_direct(struct return __v4l2_ctrl_s_ctrl(sensor->ctrls.auto_exp, exposure); }
-static int ov5640_set_mode(struct ov5640_dev *sensor, - const struct ov5640_mode_info *orig_mode) +static int ov5640_set_mode(struct ov5640_dev *sensor) { const struct ov5640_mode_info *mode = sensor->current_mode; + const struct ov5640_mode_info *orig_mode = sensor->last_mode; enum ov5640_downsize_mode dn_mode, orig_dn_mode; s32 exposure; int ret; @@ -1674,6 +1675,7 @@ static int ov5640_set_mode(struct ov5640 return ret;
sensor->pending_mode_change = false; + sensor->last_mode = mode;
return 0; } @@ -1690,6 +1692,7 @@ static int ov5640_restore_mode(struct ov ret = ov5640_load_regs(sensor, &ov5640_mode_init_data); if (ret < 0) return ret; + sensor->last_mode = &ov5640_mode_init_data;
ret = ov5640_mod_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, 0x3f, (ilog2(OV5640_SCLK2X_ROOT_DIVIDER_DEFAULT) << 2) | @@ -1698,7 +1701,7 @@ static int ov5640_restore_mode(struct ov return ret;
/* now restore the last capture mode */ - ret = ov5640_set_mode(sensor, &ov5640_mode_init_data); + ret = ov5640_set_mode(sensor); if (ret < 0) return ret;
@@ -2545,7 +2548,7 @@ static int ov5640_s_stream(struct v4l2_s
if (sensor->streaming == !enable) { if (enable && sensor->pending_mode_change) { - ret = ov5640_set_mode(sensor, sensor->current_mode); + ret = ov5640_set_mode(sensor); if (ret) goto out; } @@ -2668,6 +2671,7 @@ static int ov5640_probe(struct i2c_clien sensor->current_fr = OV5640_30_FPS; sensor->current_mode = &ov5640_mode_data[OV5640_30_FPS][OV5640_MODE_VGA_640_480]; + sensor->last_mode = sensor->current_mode;
sensor->ae_target = 52;