This patch will get the DT parameters of vsync/hsync/pixclock polarity, and
pass to driver.
Also add a debug information for test purpose.
Signed-off-by: Josh Wu <josh...@atmel.com>
---
Changes in v2:
- rewrite the debug message and add pix clock polarity setup thanks to
Laurent.
- update the commit log.
drivers/media/platform/soc_camera/atmel-isi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c
b/drivers/media/platform/soc_camera/atmel-isi.c
index fead841..d6f8def 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -1061,6 +1061,11 @@ static int isi_camera_set_bus_param(struct
soc_camera_device *icd)
if (common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
cfg1 |= ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING;
+ dev_dbg(icd->parent, "vsync active %s, hsync active %s, sampling on pix
clock %s\n",
+ common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? "low" : "high",
+ common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? "low" : "high",
+ common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING ? "falling" :
"rising");
+
if (isi->pdata.has_emb_sync)
cfg1 |= ISI_CFG1_EMB_SYNC;
if (isi->pdata.full_mode)
@@ -1148,6 +1153,13 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
return -EINVAL;
}
+ if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+ isi->pdata.hsync_act_low = true;
+ if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+ isi->pdata.vsync_act_low = true;
+ if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ isi->pdata.pclk_act_falling = true;
+
return 0;
}
--
1.9.1
--
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