[media] media: i2c: mt9p031: add OF support
Add OF support for the mt9p031 sensor driver. Alongside this patch sorts the header inclusion alphabetically. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -0,0 +1,40 @@
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* Aptina 1/2.5-Inch 5Mp CMOS Digital Image Sensor
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The Aptina MT9P031 is a 1/2.5-inch CMOS active pixel digital image sensor with
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an active array size of 2592H x 1944V. It is programmable through a simple
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two-wire serial interface.
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Required Properties:
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- compatible: value should be either one among the following
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(a) "aptina,mt9p031" for mt9p031 sensor
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(b) "aptina,mt9p031m" for mt9p031m sensor
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- input-clock-frequency: Input clock frequency.
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- pixel-clock-frequency: Pixel clock frequency.
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Optional Properties:
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- reset-gpios: Chip reset GPIO
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For further reading on port node refer to
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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Example:
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i2c0@1c22000 {
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...
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...
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mt9p031@5d {
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compatible = "aptina,mt9p031";
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reg = <0x5d>;
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reset-gpios = <&gpio3 30 0>;
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port {
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mt9p031_1: endpoint {
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input-clock-frequency = <6000000>;
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pixel-clock-frequency = <96000000>;
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};
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};
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};
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...
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};
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@ -16,9 +16,10 @@
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/device.h>
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#include <linux/gpio.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/i2c.h>
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#include <linux/log2.h>
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#include <linux/log2.h>
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#include <linux/module.h>
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#include <linux/of_gpio.h>
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#include <linux/pm.h>
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#include <linux/pm.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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@ -27,6 +28,7 @@
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#include <media/mt9p031.h>
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#include <media/mt9p031.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-of.h>
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#include <media/v4l2-subdev.h>
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#include <media/v4l2-subdev.h>
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#include "aptina-pll.h"
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#include "aptina-pll.h"
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@ -927,10 +929,36 @@ static const struct v4l2_subdev_internal_ops mt9p031_subdev_internal_ops = {
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* Driver initialization and probing
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* Driver initialization and probing
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*/
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*/
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static struct mt9p031_platform_data *
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mt9p031_get_pdata(struct i2c_client *client)
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{
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struct mt9p031_platform_data *pdata;
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struct device_node *np;
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if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
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return client->dev.platform_data;
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np = v4l2_of_get_next_endpoint(client->dev.of_node, NULL);
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if (!np)
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return NULL;
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pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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goto done;
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pdata->reset = of_get_named_gpio(client->dev.of_node, "reset-gpios", 0);
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of_property_read_u32(np, "input-clock-frequency", &pdata->ext_freq);
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of_property_read_u32(np, "pixel-clock-frequency", &pdata->target_freq);
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done:
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of_node_put(np);
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return pdata;
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}
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static int mt9p031_probe(struct i2c_client *client,
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static int mt9p031_probe(struct i2c_client *client,
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const struct i2c_device_id *did)
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const struct i2c_device_id *did)
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{
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{
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struct mt9p031_platform_data *pdata = client->dev.platform_data;
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struct mt9p031_platform_data *pdata = mt9p031_get_pdata(client);
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struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
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struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
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struct mt9p031 *mt9p031;
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struct mt9p031 *mt9p031;
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unsigned int i;
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unsigned int i;
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@ -1069,8 +1097,18 @@ static const struct i2c_device_id mt9p031_id[] = {
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};
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};
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MODULE_DEVICE_TABLE(i2c, mt9p031_id);
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MODULE_DEVICE_TABLE(i2c, mt9p031_id);
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#if IS_ENABLED(CONFIG_OF)
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static const struct of_device_id mt9p031_of_match[] = {
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{ .compatible = "aptina,mt9p031", },
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{ .compatible = "aptina,mt9p031m", },
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{ /* sentinel */ },
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};
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MODULE_DEVICE_TABLE(of, mt9p031_of_match);
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#endif
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static struct i2c_driver mt9p031_i2c_driver = {
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static struct i2c_driver mt9p031_i2c_driver = {
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.driver = {
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.driver = {
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.of_match_table = of_match_ptr(mt9p031_of_match),
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.name = "mt9p031",
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.name = "mt9p031",
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},
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},
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.probe = mt9p031_probe,
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.probe = mt9p031_probe,
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