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| author |   Todor Tomov <todor.tomov@linaro.org> | 2018-07-25 12:38:23 -0400 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-08-02 06:16:45 -0400 |
| commit | 06d690f092db28a7c83c9524010c42136e2bb37f (patch) | |
| tree | ff5c230ab01b8d00e07ef826154b498e1dc7c142 /drivers/media | |
| parent | media: camss: vfe: Get line pointer as container of video_out (diff) | |
| download | linux-dev-06d690f092db28a7c83c9524010c42136e2bb37f.tar.xz linux-dev-06d690f092db28a7c83c9524010c42136e2bb37f.zip | |
media: camss: vfe: Do not disable CAMIF when clearing its status
Use "no change" value when clearing CAMIF status and make sure
this is done before configuring the new command.
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/qcom/camss/camss-vfe.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c index 77167f11b655..15a1a0100ba8 100644 --- a/drivers/media/platform/qcom/camss/camss-vfe.c +++ b/drivers/media/platform/qcom/camss/camss-vfe.c @@ -156,6 +156,7 @@ #define VFE_0_CAMIF_CMD 0x2f4 #define VFE_0_CAMIF_CMD_DISABLE_FRAME_BOUNDARY 0 #define VFE_0_CAMIF_CMD_ENABLE_FRAME_BOUNDARY 1 +#define VFE_0_CAMIF_CMD_NO_CHANGE 3 #define VFE_0_CAMIF_CMD_CLEAR_CAMIF_STATUS (1 << 2) #define VFE_0_CAMIF_CFG 0x2f8 #define VFE_0_CAMIF_CFG_VFE_OUTPUT_EN (1 << 6) @@ -1021,8 +1022,10 @@ static void vfe_set_camif_cfg(struct vfe_device *vfe, struct vfe_line *line) static void vfe_set_camif_cmd(struct vfe_device *vfe, u32 cmd) { - writel_relaxed(VFE_0_CAMIF_CMD_CLEAR_CAMIF_STATUS, + writel_relaxed(VFE_0_CAMIF_CMD_CLEAR_CAMIF_STATUS | + VFE_0_CAMIF_CMD_NO_CHANGE, vfe->base + VFE_0_CAMIF_CMD); + wmb(); writel_relaxed(cmd, vfe->base + VFE_0_CAMIF_CMD); } |