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[media] atmel-isi: parse the DT parameters for vsync/hsync/pixclock polarity

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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.wu@atmel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Josh Wu 2015-08-04 06:37:49 -03:00 committed by Mauro Carvalho Chehab
parent d32dd315ff
commit ac4033e02a
1 changed files with 15 additions and 0 deletions
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15
drivers/media/platform/soc_camera/atmel-isi.c
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@ -833,6 +833,11 @@ 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 edge\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)
@ -920,6 +925,16 @@ 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;
if (ep.bus_type == V4L2_MBUS_BT656)
isi->pdata.has_emb_sync = true;
return 0;
}