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Message-Id: <1373713959-31066-1-git-send-email-prabhakar.csengg@gmail.com>
Date: Sat, 13 Jul 2013 16:42:39 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: LMML <linux-media@...r.kernel.org>
Cc: DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
LKML <linux-kernel@...r.kernel.org>,
LDOC <linux-doc@...r.kernel.org>,
devicetree-discuss@...ts.ozlabs.org,
"Lad, Prabhakar" <prabhakar.csengg@...il.com>
Subject: [PATCH v2] media: i2c: adv7343: add OF support
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
add OF support for the adv7343 driver.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
---
Changes for v2:
1: Fixed naming of properties.
.../devicetree/bindings/media/i2c/adv7343.txt | 54 ++++++++++++++++
drivers/media/i2c/adv7343.c | 65 +++++++++++++++++++-
2 files changed, 118 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/media/i2c/adv7343.txt
diff --git a/Documentation/devicetree/bindings/media/i2c/adv7343.txt b/Documentation/devicetree/bindings/media/i2c/adv7343.txt
new file mode 100644
index 0000000..1d2e854
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/adv7343.txt
@@ -0,0 +1,54 @@
+* Analog Devices adv7343 video encoder
+
+The ADV7343 are high speed, digital-to-analog video encoders in a 64-lead LQFP
+package. Six high speed, 3.3 V, 11-bit video DACs provide support for composite
+(CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs in standard
+definition (SD), enhanced definition (ED), or high definition (HD) video
+formats.
+
+Required Properties :
+- compatible: Must be "ad,adv7343"
+
+Optional Properties :
+- ad,adv7343-power-mode-sleep-mode: on enable the current consumption is
+ reduced to micro ampere level. All DACs and
+ the internal PLL circuit are disabled.
+- ad,adv7343-power-mode-pll-ctrl: PLL and oversampling control. This control
+ allows internal PLL 1 circuit to be powered
+ down and the oversampling to beswitched off.
+- ad,adv7343-power-mode-dac-1: power on/off DAC 1, 0 = OFF and 1 = ON.
+- ad,adv7343-power-mode-dac-2: power on/off DAC 2, 0 = OFF and 1 = ON.
+- ad,adv7343-power-mode-dac-3: power on/off DAC 3, 0 = OFF and 1 = ON.
+- ad,adv7343-power-mode-dac-4: power on/off DAC 4, 0 = OFF and 1 = ON.
+- ad,adv7343-power-mode-dac-5: power on/off DAC 5, 0 = OFF and 1 = ON.
+- ad,adv7343-power-mode-dac-6: power on/off DAC 6, 0 = OFF and 1 = ON.
+- ad,adv7343-sd-config-dac-out-1: Configure SD DAC Output 1.
+- ad,adv7343-sd-config-dac-out-2: Configure SD DAC Output 2.
+
+Example:
+
+i2c0@...2000 {
+ ...
+ ...
+
+ adv7343@2a {
+ compatible = "ad,adv7343";
+ reg = <0x2a>;
+
+ port {
+ adv7343_1: endpoint {
+ ad,adv7343-power-mode-sleep-mode;
+ ad,adv7343-power-mode-pll-ctrl;
+ ad,adv7343-power-mode-dac-1;
+ ad,adv7343-power-mode-dac-2;
+ ad,adv7343-power-mode-dac-3;
+ ad,adv7343-power-mode-dac-4;
+ ad,adv7343-power-mode-dac-5;
+ ad,adv7343-power-mode-dac-6;
+ ad,adv7343-sd-config-dac-out-1;
+ ad,adv7343-sd-config-dac-out-2;
+ };
+ };
+ };
+ ...
+};
diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
index 7606218..22ee6f4 100644
--- a/drivers/media/i2c/adv7343.c
+++ b/drivers/media/i2c/adv7343.c
@@ -29,6 +29,7 @@
#include <media/adv7343.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
+#include <media/v4l2-of.h>
#include "adv7343_regs.h"
@@ -398,6 +399,59 @@ static int adv7343_initialize(struct v4l2_subdev *sd)
return err;
}
+static struct adv7343_platform_data *
+adv7343_get_pdata(struct i2c_client *client)
+{
+ struct adv7343_platform_data *pdata;
+ struct device_node *np;
+
+ if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
+ return client->dev.platform_data;
+
+ np = v4l2_of_get_next_endpoint(client->dev.of_node, NULL);
+ if (!np)
+ return NULL;
+
+ pdata = devm_kzalloc(&client->dev, sizeof(struct adv7343_platform_data),
+ GFP_KERNEL);
+ if (!pdata)
+ goto done;
+
+ pdata->mode_config.sleep_mode =
+ of_property_read_bool(np, "ad,adv7343-power-mode-sleep-mode");
+
+ pdata->mode_config.pll_control =
+ of_property_read_bool(np, "ad,adv7343-power-mode-pll-ctrl");
+
+ pdata->mode_config.dac_1 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-1");
+
+ pdata->mode_config.dac_2 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-2");
+
+ pdata->mode_config.dac_3 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-3");
+
+ pdata->mode_config.dac_4 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-4");
+
+ pdata->mode_config.dac_5 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-5");
+
+ pdata->mode_config.dac_6 =
+ of_property_read_bool(np, "ad,adv7343-power-mode-dac-6");
+
+ pdata->sd_config.sd_dac_out1 =
+ of_property_read_bool(np, "ad,adv7343-sd-config-dac-out-1");
+
+ pdata->sd_config.sd_dac_out2 =
+ of_property_read_bool(np, "ad,adv7343-sd-config-dac-out-2");
+
+done:
+ of_node_put(np);
+ return pdata;
+}
+
static int adv7343_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -416,7 +470,7 @@ static int adv7343_probe(struct i2c_client *client,
return -ENOMEM;
/* Copy board specific information here */
- state->pdata = client->dev.platform_data;
+ state->pdata = adv7343_get_pdata(client);
state->reg00 = 0x80;
state->reg01 = 0x00;
@@ -476,8 +530,17 @@ static const struct i2c_device_id adv7343_id[] = {
MODULE_DEVICE_TABLE(i2c, adv7343_id);
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id adv7343_of_match[] = {
+ {.compatible = "ad,adv7343", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, adv7343_of_match);
+#endif
+
static struct i2c_driver adv7343_driver = {
.driver = {
+ .of_match_table = of_match_ptr(adv7343_of_match),
.owner = THIS_MODULE,
.name = "adv7343",
},
--
1.7.9.5
--
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