[PATCH v2 00/10] adv7180 subdev fixes, v2

[PATCH v2 00/10] adv7180 subdev fixes, v2

[Steve Longerbeam]

This version adds a new v4l2 endpoint property and BT.656 bus flag
for the "NEWAVMODE" setting of Analog Devices decoders. The i.MX6
capture backend is not able to sync on the bt.656 stream from the
ADV7180 when the latter is in manual video standard setting mode,
unless NEWWAVMODE is used in conjunction. The backend needs to be
aware of NEWAVMODE so that it can make adjustments to the AV code
detection.

That's the biggest addition in this version, besides the requested
feedback changes from last version.


Steve Longerbeam (10):
  v4l: of: add "newavmode" property for Analog Devices codecs
  media: adv7180: Fix broken interrupt register access
  media: adv7180: define more registers
  media: adv7180: add support for NEWAVMODE
  media: adv7180: add power pin control
  media: adv7180: implement g_parm
  media: adv7180: change mbus format to UYVY
  v4l: Add signal lock status to source change events
  media: adv7180: enable lock/unlock interrupts
  media: adv7180: fix field type

 Documentation/DocBook/media/v4l/vidioc-dqevent.xml |  12 +-
 .../devicetree/bindings/media/i2c/adv7180.txt      |   5 +
 .../devicetree/bindings/media/video-interfaces.txt |   2 +
 drivers/media/i2c/Kconfig                          |   2 +-
 drivers/media/i2c/adv7180.c                        | 233 ++++++++++++++++-----
 drivers/media/v4l2-core/v4l2-of.c                  |   4 +
 include/media/v4l2-mediabus.h                      |   5 +
 include/uapi/linux/videodev2.h                     |   1 +
 8 files changed, 214 insertions(+), 50 deletions(-)

-- 
1.9.1

[PATCH v2 01/10] v4l: of: add "newavmode" property for Analog Devices codecs

[Steve Longerbeam]

This patch adds a "newavmode" boolean property as part of the v4l2 endpoint
properties. This indicates an Analog Devices decoder is generating EAV/SAV
codes to suit Analog Devices encoders.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 Documentation/devicetree/bindings/media/video-interfaces.txt | 2 ++
 drivers/media/v4l2-core/v4l2-of.c                            | 4 ++++
 include/media/v4l2-mediabus.h                                | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
index 9cd2a36..6f2df51 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -88,6 +88,8 @@ Optional endpoint properties
 - field-even-active: field signal level during the even field data transmission.
 - pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
   signal.
+- newavmode: a boolean property to indicate an Analog Devices decoder is
+  operating in NEWAVMODE. Valid for BT.656 busses only.
 - sync-on-green-active: active state of Sync-on-green (SoG) signal, 0/1 for
   LOW/HIGH respectively.
 - data-lanes: an array of physical data lane indexes. Position of an entry
diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c
index 93b3368..719a7d1 100644
--- a/drivers/media/v4l2-core/v4l2-of.c
+++ b/drivers/media/v4l2-core/v4l2-of.c
@@ -109,6 +109,10 @@ static void v4l2_of_parse_parallel_bus(const struct device_node *node,
 		flags |= v ? V4L2_MBUS_DATA_ACTIVE_HIGH :
 			V4L2_MBUS_DATA_ACTIVE_LOW;
 
+	if (endpoint->bus_type == V4L2_MBUS_BT656 &&
+	    of_get_property(node, "newavmode", &v))
+		flags |= V4L2_MBUS_NEWAVMODE;
+
 	if (of_get_property(node, "slave-mode", &v))
 		flags |= V4L2_MBUS_SLAVE;
 	else
diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 34cc99e..0bd5f0e 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -43,6 +43,11 @@
 /* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
 #define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH	(1 << 12)
 #define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW		(1 << 13)
+/*
+ * BT.656 specific flags
+ */
+/* Analog Device's NEWAVMODE */
+#define V4L2_MBUS_NEWAVMODE			(1 << 14)
 
 /* Serial flags */
 /* How many lanes the client can use */
-- 
1.9.1

[PATCH v2 02/10] media: adv7180: Fix broken interrupt register access

[Steve Longerbeam]

Access to the interrupt page registers has been broken since at least
commit 3999e5d01da7 ("[media] adv7180: Do implicit register paging").
That commit forgot to add the interrupt page number to the register
defines.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/media/i2c/adv7180.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index b77b0a4..95cbc85 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -100,7 +100,7 @@
 #define ADV7180_REG_IDENT 0x0011
 #define ADV7180_ID_7180 0x18
 
-#define ADV7180_REG_ICONF1		0x0040
+#define ADV7180_REG_ICONF1		0x2040
 #define ADV7180_ICONF1_ACTIVE_LOW	0x01
 #define ADV7180_ICONF1_PSYNC_ONLY	0x10
 #define ADV7180_ICONF1_ACTIVE_TO_CLR	0xC0
@@ -113,15 +113,15 @@
 
 #define ADV7180_IRQ1_LOCK	0x01
 #define ADV7180_IRQ1_UNLOCK	0x02
-#define ADV7180_REG_ISR1	0x0042
-#define ADV7180_REG_ICR1	0x0043
-#define ADV7180_REG_IMR1	0x0044
-#define ADV7180_REG_IMR2	0x0048
+#define ADV7180_REG_ISR1	0x2042
+#define ADV7180_REG_ICR1	0x2043
+#define ADV7180_REG_IMR1	0x2044
+#define ADV7180_REG_IMR2	0x2048
 #define ADV7180_IRQ3_AD_CHANGE	0x08
-#define ADV7180_REG_ISR3	0x004A
-#define ADV7180_REG_ICR3	0x004B
-#define ADV7180_REG_IMR3	0x004C
-#define ADV7180_REG_IMR4	0x50
+#define ADV7180_REG_ISR3	0x204A
+#define ADV7180_REG_ICR3	0x204B
+#define ADV7180_REG_IMR3	0x204C
+#define ADV7180_REG_IMR4	0x2050
 
 #define ADV7180_REG_NTSC_V_BIT_END	0x00E6
 #define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND	0x4F
-- 
1.9.1

[PATCH v2 03/10] media: adv7180: define more registers

[Steve Longerbeam]

Replace hard-coded addresses with new register macro defines. No
functional changes.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
---
 drivers/media/i2c/adv7180.c | 73 ++++++++++++++++++++++++++++++---------------
 1 file changed, 49 insertions(+), 24 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 95cbc85..cb83ebb 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -56,10 +56,11 @@
 
 #define ADV7182_REG_INPUT_VIDSEL			0x0002
 
+#define ADV7180_REG_OUTPUT_CONTROL			0x0003
 #define ADV7180_REG_EXTENDED_OUTPUT_CONTROL		0x0004
 #define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS		0xC5
 
-#define ADV7180_REG_AUTODETECT_ENABLE			0x07
+#define ADV7180_REG_AUTODETECT_ENABLE			0x0007
 #define ADV7180_AUTODETECT_DEFAULT			0x7f
 /* Contrast */
 #define ADV7180_REG_CON		0x0008	/*Unsigned */
@@ -100,6 +101,20 @@
 #define ADV7180_REG_IDENT 0x0011
 #define ADV7180_ID_7180 0x18
 
+#define ADV7180_REG_STATUS3		0x0013
+#define ADV7180_REG_ANALOG_CLAMP_CTL	0x0014
+#define ADV7180_REG_SHAP_FILTER_CTL_1	0x0017
+#define ADV7180_REG_CTRL_2		0x001d
+#define ADV7180_REG_VSYNC_FIELD_CTL_1	0x0031
+#define ADV7180_REG_MANUAL_WIN_CTL_1	0x003d
+#define ADV7180_REG_MANUAL_WIN_CTL_2	0x003e
+#define ADV7180_REG_MANUAL_WIN_CTL_3	0x003f
+#define ADV7180_REG_LOCK_CNT		0x0051
+#define ADV7180_REG_CVBS_TRIM		0x0052
+#define ADV7180_REG_CLAMP_ADJ		0x005a
+#define ADV7180_REG_RES_CIR		0x005f
+#define ADV7180_REG_DIFF_MODE		0x0060
+
 #define ADV7180_REG_ICONF1		0x2040
 #define ADV7180_ICONF1_ACTIVE_LOW	0x01
 #define ADV7180_ICONF1_PSYNC_ONLY	0x10
@@ -129,9 +144,15 @@
 #define ADV7180_REG_VPP_SLAVE_ADDR	0xFD
 #define ADV7180_REG_CSI_SLAVE_ADDR	0xFE
 
-#define ADV7180_REG_FLCONTROL 0x40e0
+#define ADV7180_REG_ACE_CTRL1		0x4080
+#define ADV7180_REG_ACE_CTRL5		0x4084
+#define ADV7180_REG_FLCONTROL		0x40e0
 #define ADV7180_FLCONTROL_FL_ENABLE 0x1
 
+#define ADV7180_REG_RST_CLAMP	0x809c
+#define ADV7180_REG_AGC_ADJ1	0x80b6
+#define ADV7180_REG_AGC_ADJ2	0x80c0
+
 #define ADV7180_CSI_REG_PWRDN	0x00
 #define ADV7180_CSI_PWRDN	0x80
 
@@ -886,16 +907,20 @@ static int adv7182_init(struct adv7180_state *state)
 
 	/* ADI required writes */
 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
-		adv7180_write(state, 0x0003, 0x4e);
-		adv7180_write(state, 0x0004, 0x57);
-		adv7180_write(state, 0x001d, 0xc0);
+		adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x4e);
+		adv7180_write(state, ADV7180_REG_EXTENDED_OUTPUT_CONTROL, 0x57);
+		adv7180_write(state, ADV7180_REG_CTRL_2, 0xc0);
 	} else {
 		if (state->chip_info->flags & ADV7180_FLAG_V2)
-			adv7180_write(state, 0x0004, 0x17);
+			adv7180_write(state,
+				      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
+				      0x17);
 		else
-			adv7180_write(state, 0x0004, 0x07);
-		adv7180_write(state, 0x0003, 0x0c);
-		adv7180_write(state, 0x001d, 0x40);
+			adv7180_write(state,
+				      ADV7180_REG_EXTENDED_OUTPUT_CONTROL,
+				      0x07);
+		adv7180_write(state, ADV7180_REG_OUTPUT_CONTROL, 0x0c);
+		adv7180_write(state, ADV7180_REG_CTRL_2, 0x40);
 	}
 
 	adv7180_write(state, 0x0013, 0x00);
@@ -972,8 +997,8 @@ static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
 		return ret;
 
 	/* Reset clamp circuitry - ADI recommended writes */
-	adv7180_write(state, 0x809c, 0x00);
-	adv7180_write(state, 0x809c, 0xff);
+	adv7180_write(state, ADV7180_REG_RST_CLAMP, 0x00);
+	adv7180_write(state, ADV7180_REG_RST_CLAMP, 0xff);
 
 	input_type = adv7182_get_input_type(input);
 
@@ -981,10 +1006,10 @@ static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
 	case ADV7182_INPUT_TYPE_CVBS:
 	case ADV7182_INPUT_TYPE_DIFF_CVBS:
 		/* ADI recommends to use the SH1 filter */
-		adv7180_write(state, 0x0017, 0x41);
+		adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x41);
 		break;
 	default:
-		adv7180_write(state, 0x0017, 0x01);
+		adv7180_write(state, ADV7180_REG_SHAP_FILTER_CTL_1, 0x01);
 		break;
 	}
 
@@ -994,21 +1019,21 @@ static int adv7182_select_input(struct adv7180_state *state, unsigned int input)
 		lbias = adv7182_lbias_settings[input_type];
 
 	for (i = 0; i < ARRAY_SIZE(adv7182_lbias_settings[0]); i++)
-		adv7180_write(state, 0x0052 + i, lbias[i]);
+		adv7180_write(state, ADV7180_REG_CVBS_TRIM + i, lbias[i]);
 
 	if (input_type == ADV7182_INPUT_TYPE_DIFF_CVBS) {
 		/* ADI required writes to make differential CVBS work */
-		adv7180_write(state, 0x005f, 0xa8);
-		adv7180_write(state, 0x005a, 0x90);
-		adv7180_write(state, 0x0060, 0xb0);
-		adv7180_write(state, 0x80b6, 0x08);
-		adv7180_write(state, 0x80c0, 0xa0);
+		adv7180_write(state, ADV7180_REG_RES_CIR, 0xa8);
+		adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0x90);
+		adv7180_write(state, ADV7180_REG_DIFF_MODE, 0xb0);
+		adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x08);
+		adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0xa0);
 	} else {
-		adv7180_write(state, 0x005f, 0xf0);
-		adv7180_write(state, 0x005a, 0xd0);
-		adv7180_write(state, 0x0060, 0x10);
-		adv7180_write(state, 0x80b6, 0x9c);
-		adv7180_write(state, 0x80c0, 0x00);
+		adv7180_write(state, ADV7180_REG_RES_CIR, 0xf0);
+		adv7180_write(state, ADV7180_REG_CLAMP_ADJ, 0xd0);
+		adv7180_write(state, ADV7180_REG_DIFF_MODE, 0x10);
+		adv7180_write(state, ADV7180_REG_AGC_ADJ1, 0x9c);
+		adv7180_write(state, ADV7180_REG_AGC_ADJ2, 0x00);
 	}
 
 	return 0;
-- 
1.9.1

[PATCH v2 04/10] media: adv7180: add support for NEWAVMODE

[Steve Longerbeam]

Parse the optional v4l2 endpoint DT node. If the V4L2_MBUS_NEWAVMODE
parallel bus flag is set, configure the BT.656 bus in NEWAVMODE.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
---
 drivers/media/i2c/adv7180.c | 47 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index cb83ebb..667931e9 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -31,6 +31,7 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
+#include <media/v4l2-of.h>
 #include <linux/mutex.h>
 #include <linux/delay.h>
 
@@ -106,6 +107,7 @@
 #define ADV7180_REG_SHAP_FILTER_CTL_1	0x0017
 #define ADV7180_REG_CTRL_2		0x001d
 #define ADV7180_REG_VSYNC_FIELD_CTL_1	0x0031
+#define ADV7180_VSYNC_FIELD_CTL_1_NEWAVMODE 0x02
 #define ADV7180_REG_MANUAL_WIN_CTL_1	0x003d
 #define ADV7180_REG_MANUAL_WIN_CTL_2	0x003e
 #define ADV7180_REG_MANUAL_WIN_CTL_3	0x003f
@@ -214,6 +216,7 @@ struct adv7180_state {
 	struct mutex		mutex; /* mutual excl. when accessing chip */
 	int			irq;
 	v4l2_std_id		curr_norm;
+	bool			newavmode;
 	bool			powered;
 	bool			streaming;
 	u8			input;
@@ -740,6 +743,8 @@ static int adv7180_g_mbus_config(struct v4l2_subdev *sd,
 		 */
 		cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
 				 V4L2_MBUS_DATA_ACTIVE_HIGH;
+		if (state->newavmode)
+			cfg->flags |= V4L2_MBUS_NEWAVMODE;
 		cfg->type = V4L2_MBUS_BT656;
 	}
 
@@ -864,9 +869,15 @@ static int adv7180_init(struct adv7180_state *state)
 	if (ret < 0)
 		return ret;
 
-	/* Manually set V bit end position in NTSC mode */
-	return adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
-					ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
+	if (!state->newavmode) {
+		/* Manually set V bit end position in NTSC mode */
+		ret = adv7180_write(state, ADV7180_REG_NTSC_V_BIT_END,
+				    ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
 }
 
 static int adv7180_set_std(struct adv7180_state *state, unsigned int std)
@@ -1217,6 +1228,13 @@ static int init_device(struct adv7180_state *state)
 	if (ret)
 		goto out_unlock;
 
+	if (state->newavmode) {
+		ret = adv7180_write(state, ADV7180_REG_VSYNC_FIELD_CTL_1,
+				    ADV7180_VSYNC_FIELD_CTL_1_NEWAVMODE);
+		if (ret < 0)
+			goto out_unlock;
+	}
+
 	ret = adv7180_program_std(state);
 	if (ret)
 		goto out_unlock;
@@ -1257,6 +1275,27 @@ out_unlock:
 	return ret;
 }
 
+static void adv7180_of_parse(struct adv7180_state *state)
+{
+	struct i2c_client *client = state->client;
+	struct device_node *np = client->dev.of_node;
+	struct device_node *endpoint;
+	struct v4l2_of_endpoint	ep;
+
+	endpoint = of_graph_get_next_endpoint(np, NULL);
+	if (!endpoint) {
+		v4l_warn(client, "endpoint node not found\n");
+		return;
+	}
+
+	v4l2_of_parse_endpoint(endpoint, &ep);
+	of_node_put(endpoint);
+
+	if (ep.bus_type == V4L2_MBUS_BT656 &&
+	    ep.bus.parallel.flags & V4L2_MBUS_NEWAVMODE)
+		state->newavmode = true;
+}
+
 static int adv7180_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -1279,6 +1318,8 @@ static int adv7180_probe(struct i2c_client *client,
 	state->field = V4L2_FIELD_INTERLACED;
 	state->chip_info = (struct adv7180_chip_info *)id->driver_data;
 
+	adv7180_of_parse(state);
+
 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 		state->csi_client = i2c_new_dummy(client->adapter,
 				ADV7180_DEFAULT_CSI_I2C_ADDR);
-- 
1.9.1

[PATCH v2 05/10] media: adv7180: add power pin control

[Steve Longerbeam]

Some targets control the ADV7180 power pin via a gpio, so add
optional support for "powerdown" pin control.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>

---

v2:
- placed call to gpiod_get inline in adv7180_probe().
- rename gpio pin to "powerdown".
- document optional powerdown-gpios property in
  Documentation/devicetree/bindings/media/i2c/adv7180.txt.
- include error number in error message on gpiod_get failure.
---
 .../devicetree/bindings/media/i2c/adv7180.txt      |  5 ++++
 drivers/media/i2c/Kconfig                          |  2 +-
 drivers/media/i2c/adv7180.c                        | 27 ++++++++++++++++++++++
 3 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/media/i2c/adv7180.txt b/Documentation/devicetree/bindings/media/i2c/adv7180.txt
index 0d50115..4da486f 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv7180.txt
+++ b/Documentation/devicetree/bindings/media/i2c/adv7180.txt
@@ -15,6 +15,11 @@ Required Properties :
 		"adi,adv7282"
 		"adi,adv7282-m"
 
+Optional Properties :
+- powerdown-gpios: reference to the GPIO connected to the powerdown pin,
+  if any.
+
+
 Example:
 
 	i2c0@1c22000 {
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index ce9006e..6769898 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -187,7 +187,7 @@ comment "Video decoders"
 
 config VIDEO_ADV7180
 	tristate "Analog Devices ADV7180 decoder"
-	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
+	depends on GPIOLIB && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
 	---help---
 	  Support for the Analog Devices ADV7180 video decoder.
 
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 667931e9..8612d21 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -26,6 +26,7 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/gpio/consumer.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-event.h>
@@ -215,6 +216,7 @@ struct adv7180_state {
 	struct media_pad	pad;
 	struct mutex		mutex; /* mutual excl. when accessing chip */
 	int			irq;
+	struct gpio_desc	*pwdn_gpio;
 	v4l2_std_id		curr_norm;
 	bool			newavmode;
 	bool			powered;
@@ -466,6 +468,19 @@ static int adv7180_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
 	return 0;
 }
 
+static void adv7180_set_power_pin(struct adv7180_state *state, bool on)
+{
+	if (!state->pwdn_gpio)
+		return;
+
+	if (on) {
+		gpiod_set_value_cansleep(state->pwdn_gpio, 0);
+		usleep_range(5000, 10000);
+	} else {
+		gpiod_set_value_cansleep(state->pwdn_gpio, 1);
+	}
+}
+
 static int adv7180_set_power(struct adv7180_state *state, bool on)
 {
 	u8 val;
@@ -1221,6 +1236,8 @@ static int init_device(struct adv7180_state *state)
 
 	mutex_lock(&state->mutex);
 
+	adv7180_set_power_pin(state, true);
+
 	adv7180_write(state, ADV7180_REG_PWR_MAN, ADV7180_PWR_MAN_RES);
 	usleep_range(5000, 10000);
 
@@ -1320,6 +1337,14 @@ static int adv7180_probe(struct i2c_client *client,
 
 	adv7180_of_parse(state);
 
+	state->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
+						   GPIOD_OUT_HIGH);
+	if (IS_ERR(state->pwdn_gpio)) {
+		ret = PTR_ERR(state->pwdn_gpio);
+		v4l_err(client, "request for power pin failed: %d\n", ret);
+		return ret;
+	}
+
 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2) {
 		state->csi_client = i2c_new_dummy(client->adapter,
 				ADV7180_DEFAULT_CSI_I2C_ADDR);
@@ -1411,6 +1436,8 @@ static int adv7180_remove(struct i2c_client *client)
 	if (state->chip_info->flags & ADV7180_FLAG_MIPI_CSI2)
 		i2c_unregister_device(state->csi_client);
 
+	adv7180_set_power_pin(state, false);
+
 	mutex_destroy(&state->mutex);
 
 	return 0;
-- 
1.9.1

[PATCH v2 06/10] media: adv7180: implement g_parm

[Steve Longerbeam]

Implement g_parm to return the current standard's frame period.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
---
 drivers/media/i2c/adv7180.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 8612d21..8259549 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -766,6 +766,27 @@ static int adv7180_g_mbus_config(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static int adv7180_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
+{
+	struct adv7180_state *state = to_state(sd);
+	struct v4l2_captureparm *cparm = &a->parm.capture;
+
+	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	memset(a, 0, sizeof(*a));
+	a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	if (state->curr_norm & V4L2_STD_525_60) {
+		cparm->timeperframe.numerator = 1001;
+		cparm->timeperframe.denominator = 30000;
+	} else {
+		cparm->timeperframe.numerator = 1;
+		cparm->timeperframe.denominator = 25;
+	}
+
+	return 0;
+}
+
 static int adv7180_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *cropcap)
 {
 	struct adv7180_state *state = to_state(sd);
@@ -824,6 +845,7 @@ static int adv7180_subscribe_event(struct v4l2_subdev *sd,
 static const struct v4l2_subdev_video_ops adv7180_video_ops = {
 	.s_std = adv7180_s_std,
 	.g_std = adv7180_g_std,
+	.g_parm = adv7180_g_parm,
 	.querystd = adv7180_querystd,
 	.g_input_status = adv7180_g_input_status,
 	.s_routing = adv7180_s_routing,
-- 
1.9.1

[PATCH v2 07/10] media: adv7180: change mbus format to UYVY

[Steve Longerbeam]

Change the media bus format from YUYV8_2X8 to UYVY8_2X8. Colors
now look correct when capturing with the i.mx6 backend.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/media/i2c/adv7180.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 8259549..0f0568c 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -636,7 +636,7 @@ static int adv7180_enum_mbus_code(struct v4l2_subdev *sd,
 	if (code->index != 0)
 		return -EINVAL;
 
-	code->code = MEDIA_BUS_FMT_YUYV8_2X8;
+	code->code = MEDIA_BUS_FMT_UYVY8_2X8;
 
 	return 0;
 }
@@ -646,7 +646,7 @@ static int adv7180_mbus_fmt(struct v4l2_subdev *sd,
 {
 	struct adv7180_state *state = to_state(sd);
 
-	fmt->code = MEDIA_BUS_FMT_YUYV8_2X8;
+	fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
 	fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
 	fmt->width = 720;
 	fmt->height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
-- 
1.9.1

[PATCH v2 08/10] v4l: Add signal lock status to source change events

[Steve Longerbeam]

Add a signal lock status change to the source changes bitmask.
This indicates there was a signal lock or unlock event detected
at the input of a video decoder.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---
 Documentation/DocBook/media/v4l/vidioc-dqevent.xml | 12 ++++++++++--
 include/uapi/linux/videodev2.h                     |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
index c9c3c77..7758ad7 100644
--- a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml
@@ -233,8 +233,9 @@
 	    <entry>
 	      <para>This event is triggered when a source parameter change is
 	       detected during runtime by the video device. It can be a
-	       runtime resolution change triggered by a video decoder or the
-	       format change happening on an input connector.
+	       runtime resolution change or signal lock status change
+	       triggered by a video decoder, or the format change happening
+	       on an input connector.
 	       This event requires that the <structfield>id</structfield>
 	       matches the input index (when used with a video device node)
 	       or the pad index (when used with a subdevice node) from which
@@ -461,6 +462,13 @@
 	    from a video decoder.
 	    </entry>
 	  </row>
+	  <row>
+	    <entry><constant>V4L2_EVENT_SRC_CH_LOCK_STATUS</constant></entry>
+	    <entry>0x0002</entry>
+	    <entry>This event gets triggered when there is a signal lock or
+	    unlock detected at the input of a video decoder.
+	    </entry>
+	  </row>
 	</tbody>
       </tgroup>
     </table>
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 724f43e..08a153f 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -2078,6 +2078,7 @@ struct v4l2_event_frame_sync {
 };
 
 #define V4L2_EVENT_SRC_CH_RESOLUTION		(1 << 0)
+#define V4L2_EVENT_SRC_CH_LOCK_STATUS		(1 << 1)
 
 struct v4l2_event_src_change {
 	__u32 changes;
-- 
1.9.1

[PATCH v2 09/10] media: adv7180: enable lock/unlock interrupts

[Steve Longerbeam]

Enable the SD lock/unlock interrupts and send V4L2_EVENT_SRC_CH_LOCK_STATUS
in the interrupt handler on a detected lock/unlock.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>

---

v2:
- last version of this patch was based on the old reverted autodetect
  code. This version now only enables the interrupt and sends the
  event in the interrupt handler.
---
 drivers/media/i2c/adv7180.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 0f0568c..61f2140 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -876,19 +876,29 @@ static const struct v4l2_subdev_ops adv7180_ops = {
 static irqreturn_t adv7180_irq(int irq, void *devid)
 {
 	struct adv7180_state *state = devid;
-	u8 isr3;
+	u8 isr1, isr3;
 
 	mutex_lock(&state->mutex);
+	isr1 = adv7180_read(state, ADV7180_REG_ISR1);
 	isr3 = adv7180_read(state, ADV7180_REG_ISR3);
 	/* clear */
+	adv7180_write(state, ADV7180_REG_ICR1, isr1);
 	adv7180_write(state, ADV7180_REG_ICR3, isr3);
 
-	if (isr3 & ADV7180_IRQ3_AD_CHANGE) {
-		static const struct v4l2_event src_ch = {
+	if ((isr3 & ADV7180_IRQ3_AD_CHANGE) ||
+	    (isr1 & (ADV7180_IRQ1_LOCK | ADV7180_IRQ1_UNLOCK))) {
+		static struct v4l2_event src_ch = {
 			.type = V4L2_EVENT_SOURCE_CHANGE,
-			.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
 		};
 
+		if (isr3 & ADV7180_IRQ3_AD_CHANGE)
+			src_ch.u.src_change.changes |=
+				V4L2_EVENT_SRC_CH_RESOLUTION;
+
+		if (isr1 & (ADV7180_IRQ1_LOCK | ADV7180_IRQ1_UNLOCK))
+			src_ch.u.src_change.changes |=
+				V4L2_EVENT_SRC_CH_LOCK_STATUS;
+
 		v4l2_subdev_notify_event(&state->sd, &src_ch);
 	}
 	mutex_unlock(&state->mutex);
@@ -1289,7 +1299,9 @@ static int init_device(struct adv7180_state *state)
 		if (ret < 0)
 			goto out_unlock;
 
-		ret = adv7180_write(state, ADV7180_REG_IMR1, 0);
+		/* enable lock/unlock interrupts */
+		ret = adv7180_write(state, ADV7180_REG_IMR1,
+				    ADV7180_IRQ1_LOCK | ADV7180_IRQ1_UNLOCK);
 		if (ret < 0)
 			goto out_unlock;
 
-- 
1.9.1

[PATCH v2 10/10] media: adv7180: fix field type

[Steve Longerbeam]

The ADV7180 and ADV7182 transmit whole fields, bottom field followed
by top (or vice-versa, depending on detected video standard). So
for chips that do not have support for explicitly setting the field
mode, set the field mode to SEQ_BT for PAL, and SEQ_TB for NTSC (there
seems to be conflicting info on field order of PAL vs NTSC, so follow
what is in adv7183.c).

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>

---

v2:
- the init of state->curr_norm in probe needs to be moved up, ahead
  of the init of state->field.
---
 drivers/media/i2c/adv7180.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 61f2140..58e1f53 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -718,10 +718,17 @@ static int adv7180_set_pad_format(struct v4l2_subdev *sd,
 	switch (format->format.field) {
 	case V4L2_FIELD_NONE:
 		if (!(state->chip_info->flags & ADV7180_FLAG_I2P))
-			format->format.field = V4L2_FIELD_INTERLACED;
+			format->format.field =
+				(state->curr_norm & V4L2_STD_525_60) ?
+				V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
 		break;
 	default:
-		format->format.field = V4L2_FIELD_INTERLACED;
+		if (state->chip_info->flags & ADV7180_FLAG_I2P)
+			format->format.field = V4L2_FIELD_INTERLACED;
+		else
+			format->format.field =
+				(state->curr_norm & V4L2_STD_525_60) ?
+				V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
 		break;
 	}
 
@@ -1366,8 +1373,14 @@ static int adv7180_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	state->client = client;
-	state->field = V4L2_FIELD_INTERLACED;
 	state->chip_info = (struct adv7180_chip_info *)id->driver_data;
+	state->curr_norm = V4L2_STD_NTSC;
+
+	if (state->chip_info->flags & ADV7180_FLAG_I2P)
+		state->field = V4L2_FIELD_INTERLACED;
+	else
+		state->field = (state->curr_norm & V4L2_STD_525_60) ?
+			V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
 
 	adv7180_of_parse(state);
 
@@ -1397,7 +1410,6 @@ static int adv7180_probe(struct i2c_client *client,
 
 	state->irq = client->irq;
 	mutex_init(&state->mutex);
-	state->curr_norm = V4L2_STD_NTSC;
 	if (state->chip_info->flags & ADV7180_FLAG_RESET_POWERED)
 		state->powered = true;
 	else
-- 
1.9.1

Re: [PATCH v2 01/10] v4l: of: add "newavmode" property for Analog Devices codecs

[Hans Verkuil]

On 07/20/2016 02:03 AM, Steve Longerbeam wrote:
> This patch adds a "newavmode" boolean property as part of the v4l2 endpoint
> properties. This indicates an Analog Devices decoder is generating EAV/SAV
> codes to suit Analog Devices encoders.
> 
> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
> Cc: Javier Martinez Canillas <javier@osg.samsung.com>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
>  Documentation/devicetree/bindings/media/video-interfaces.txt | 2 ++
>  drivers/media/v4l2-core/v4l2-of.c                            | 4 ++++
>  include/media/v4l2-mediabus.h                                | 5 +++++
>  3 files changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
> index 9cd2a36..6f2df51 100644
> --- a/Documentation/devicetree/bindings/media/video-interfaces.txt
> +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
> @@ -88,6 +88,8 @@ Optional endpoint properties
>  - field-even-active: field signal level during the even field data transmission.
>  - pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
>    signal.
> +- newavmode: a boolean property to indicate an Analog Devices decoder is
> +  operating in NEWAVMODE. Valid for BT.656 busses only.

This property is adv7180 specific and does not belong here.

Add this to Documentation/devicetree/bindings/media/i2c/adv7180.txt instead.

Nacked-by: Hans Verkuil <hans.verkuil@cisco.com>

Regards,

	Hans

>  - sync-on-green-active: active state of Sync-on-green (SoG) signal, 0/1 for
>    LOW/HIGH respectively.
>  - data-lanes: an array of physical data lane indexes. Position of an entry
> diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c
> index 93b3368..719a7d1 100644
> --- a/drivers/media/v4l2-core/v4l2-of.c
> +++ b/drivers/media/v4l2-core/v4l2-of.c
> @@ -109,6 +109,10 @@ static void v4l2_of_parse_parallel_bus(const struct device_node *node,
>  		flags |= v ? V4L2_MBUS_DATA_ACTIVE_HIGH :
>  			V4L2_MBUS_DATA_ACTIVE_LOW;
>  
> +	if (endpoint->bus_type == V4L2_MBUS_BT656 &&
> +	    of_get_property(node, "newavmode", &v))
> +		flags |= V4L2_MBUS_NEWAVMODE;
> +
>  	if (of_get_property(node, "slave-mode", &v))
>  		flags |= V4L2_MBUS_SLAVE;
>  	else
> diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
> index 34cc99e..0bd5f0e 100644
> --- a/include/media/v4l2-mediabus.h
> +++ b/include/media/v4l2-mediabus.h
> @@ -43,6 +43,11 @@
>  /* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
>  #define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH	(1 << 12)
>  #define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW		(1 << 13)
> +/*
> + * BT.656 specific flags
> + */
> +/* Analog Device's NEWAVMODE */
> +#define V4L2_MBUS_NEWAVMODE			(1 << 14)
>  
>  /* Serial flags */
>  /* How many lanes the client can use */
> 

Re: [PATCH v2 05/10] media: adv7180: add power pin control

[Lars-Peter Clausen]

On 07/20/2016 02:03 AM, Steve Longerbeam wrote:
> Some targets control the ADV7180 power pin via a gpio, so add
> optional support for "powerdown" pin control.
> 
> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
> Tested-by: Tim Harvey <tharvey@gateworks.com>
> Acked-by: Tim Harvey <tharvey@gateworks.com>
> Cc: Lars-Peter Clausen <lars@metafoo.de>

Looks good, thanks.

Acked-by: Lars-Peter Clausen <lars@metafoo.de>

Re: [PATCH v2 03/10] media: adv7180: define more registers

[Lars-Peter Clausen]

On 07/20/2016 02:03 AM, Steve Longerbeam wrote:
> Replace hard-coded addresses with new register macro defines. No
> functional changes.
> 
> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>

Acked-by: Lars-Peter Clausen <lars@metafoo.de>

Re: [PATCH v2 01/10] v4l: of: add "newavmode" property for Analog Devices codecs

[Steve Longerbeam]

On 07/20/2016 12:37 AM, Hans Verkuil wrote:
> On 07/20/2016 02:03 AM, Steve Longerbeam wrote:
>> This patch adds a "newavmode" boolean property as part of the v4l2 endpoint
>> properties. This indicates an Analog Devices decoder is generating EAV/SAV
>> codes to suit Analog Devices encoders.
>>
>> Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
>> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
>> Cc: Javier Martinez Canillas <javier@osg.samsung.com>
>> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>> Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
>> ---
>>  Documentation/devicetree/bindings/media/video-interfaces.txt | 2 ++
>>  drivers/media/v4l2-core/v4l2-of.c                            | 4 ++++
>>  include/media/v4l2-mediabus.h                                | 5 +++++
>>  3 files changed, 11 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
>> index 9cd2a36..6f2df51 100644
>> --- a/Documentation/devicetree/bindings/media/video-interfaces.txt
>> +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
>> @@ -88,6 +88,8 @@ Optional endpoint properties
>>  - field-even-active: field signal level during the even field data transmission.
>>  - pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
>>    signal.
>> +- newavmode: a boolean property to indicate an Analog Devices decoder is
>> +  operating in NEWAVMODE. Valid for BT.656 busses only.
> This property is adv7180 specific and does not belong here.

Hi Hans, yes that was my initial reaction to this idea as well, but
you didn't respond to my first request for comment.

>
> Add this to Documentation/devicetree/bindings/media/i2c/adv7180.txt instead.

Yes, I'll move this property into adv7180.

Steve