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Commit ac4033e0 authored by Josh Wu's avatar Josh Wu Committed by Mauro Carvalho Chehab
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[media] atmel-isi: parse the DT parameters for vsync/hsync/pixclock polarity 



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: default avatarJosh Wu <josh.wu@atmel.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent d32dd315

drivers/media/platform/soc_camera/atmel-isi.c

+15 −0
Original line number Diff line number Diff line
@@ -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;

}