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| author | Enrico Scholz <enrico.scholz@sigma-chemnitz.de> | 2018-05-03 18:29:36 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2018-07-16 16:56:36 +0200 |
| commit | d36d0e6309dd8137cf438cbb680e72eb63c81425 (patch) | |
| tree | e8dc69ad36e8533370b0c8a100cbcc342e340cfc | |
| parent | 7cc3bf3f08b5645d1d08439fea36e4148dc6d7d3 (diff) | |
| download | linux-d36d0e6309dd8137cf438cbb680e72eb63c81425.tar.gz linux-d36d0e6309dd8137cf438cbb680e72eb63c81425.tar.xz | |
gpu: ipu-v3: csi: pass back mbus_code_to_bus_cfg error codes
mbus_code_to_bus_cfg() can fail on unknown mbus codes; pass back the
error to the caller.
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
[p.zabel@pengutronix.de - renamed rc to ret for consistency]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-csi.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c index 813a3199aa84..27262748a549 100644 --- a/drivers/gpu/ipu-v3/ipu-csi.c +++ b/drivers/gpu/ipu-v3/ipu-csi.c @@ -324,13 +324,17 @@ static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code) /* * Fill a CSI bus config struct from mbus_config and mbus_framefmt. */ -static void fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg, +static int fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg, struct v4l2_mbus_config *mbus_cfg, struct v4l2_mbus_framefmt *mbus_fmt) { + int ret; + memset(csicfg, 0, sizeof(*csicfg)); - mbus_code_to_bus_cfg(csicfg, mbus_fmt->code); + ret = mbus_code_to_bus_cfg(csicfg, mbus_fmt->code); + if (ret < 0) + return ret; switch (mbus_cfg->type) { case V4L2_MBUS_PARALLEL: @@ -362,6 +366,8 @@ static void fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg, /* will never get here, keep compiler quiet */ break; } + + return 0; } int ipu_csi_init_interface(struct ipu_csi *csi, @@ -371,8 +377,11 @@ int ipu_csi_init_interface(struct ipu_csi *csi, struct ipu_csi_bus_config cfg; unsigned long flags; u32 width, height, data = 0; + int ret; - fill_csi_bus_cfg(&cfg, mbus_cfg, mbus_fmt); + ret = fill_csi_bus_cfg(&cfg, mbus_cfg, mbus_fmt); + if (ret < 0) + return ret; /* set default sensor frame width and height */ width = mbus_fmt->width; @@ -593,11 +602,14 @@ int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc, struct ipu_csi_bus_config cfg; unsigned long flags; u32 temp; + int ret; if (vc > 3) return -EINVAL; - mbus_code_to_bus_cfg(&cfg, mbus_fmt->code); + ret = mbus_code_to_bus_cfg(&cfg, mbus_fmt->code); + if (ret < 0) + return ret; spin_lock_irqsave(&csi->lock, flags); |