Commit 73549a69 authored by Marco Felsch's avatar Marco Felsch Committed by Mauro Carvalho Chehab
Browse files

media: tvp5150: move irq en-/disable into runtime-pm ops 

As documented in [1] the runtime-pm ops are used to set the device into
a fully 'workable' state. Therefore it can be used to enable or disable
the irqs.

[1] https://www.kernel.org/doc/html/latest/power/runtime_pm.html



Signed-off-by: default avatarMarco Felsch <m.felsch@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 96ca7c41

drivers/media/i2c/tvp5150.c

+55 −6
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/interrupt.h>

#include <linux/module.h>

#include <linux/of_graph.h>

#include <linux/pm_runtime.h>

#include <linux/regmap.h>

#include <media/v4l2-async.h>

#include <media/v4l2-device.h>
@@ -1356,16 +1357,51 @@ static const struct media_entity_operations tvp5150_sd_media_ops = { 
/****************************************************************************

			I2C Command

 ****************************************************************************/

static int __maybe_unused tvp5150_runtime_suspend(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	struct tvp5150 *decoder = to_tvp5150(sd);



	if (decoder->irq)

		/* Disable lock interrupt */

		return regmap_update_bits(decoder->regmap,

					  TVP5150_INT_ENABLE_REG_A,

					  TVP5150_INT_A_LOCK, 0);

	return 0;

}



static int __maybe_unused tvp5150_runtime_resume(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	struct tvp5150 *decoder = to_tvp5150(sd);



	if (decoder->irq)

		/* Enable lock interrupt */

		return regmap_update_bits(decoder->regmap,

					  TVP5150_INT_ENABLE_REG_A,

					  TVP5150_INT_A_LOCK,

					  TVP5150_INT_A_LOCK);

	return 0;

}



static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)

{

	struct tvp5150 *decoder = to_tvp5150(sd);

	unsigned int mask, val = 0, int_val = 0;

	unsigned int mask, val = 0;

	int ret;



	mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |

	       TVP5150_MISC_CTL_CLOCK_OE;



	if (enable) {

		ret = pm_runtime_get_sync(sd->dev);

		if (ret < 0) {

			pm_runtime_put_noidle(sd->dev);

			return ret;

		}



		tvp5150_enable(sd);



		/* Enable outputs if decoder is locked */
@@ -1373,15 +1409,13 @@ static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable) 
			val = decoder->lock ? decoder->oe : 0;

		else

			val = decoder->oe;

		int_val = TVP5150_INT_A_LOCK;



		v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);

	} else {

		pm_runtime_put(sd->dev);

	}



	regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);

	if (decoder->irq)

		/* Enable / Disable lock interrupt */

		regmap_update_bits(decoder->regmap, TVP5150_INT_ENABLE_REG_A,

				   TVP5150_INT_A_LOCK, int_val);



	return 0;

}
@@ -2077,6 +2111,11 @@ static int tvp5150_probe(struct i2c_client *c) 


	if (debug > 1)

		tvp5150_log_status(sd);



	pm_runtime_set_active(&c->dev);

	pm_runtime_enable(&c->dev);

	pm_runtime_idle(&c->dev);



	return 0;



err:
@@ -2100,11 +2139,20 @@ static int tvp5150_remove(struct i2c_client *c) 
		media_device_unregister_entity(&decoder->connectors[i].ent);

	v4l2_async_unregister_subdev(sd);

	v4l2_ctrl_handler_free(&decoder->hdl);

	pm_runtime_disable(&c->dev);

	pm_runtime_set_suspended(&c->dev);



	return 0;

}



/* ----------------------------------------------------------------------- */



static const struct dev_pm_ops tvp5150_pm_ops = {

	SET_RUNTIME_PM_OPS(tvp5150_runtime_suspend,

			   tvp5150_runtime_resume,

			   NULL)

};



static const struct i2c_device_id tvp5150_id[] = {

	{ "tvp5150", 0 },

	{ }
@@ -2123,6 +2171,7 @@ static struct i2c_driver tvp5150_driver = { 
	.driver = {

		.of_match_table = of_match_ptr(tvp5150_of_match),

		.name	= "tvp5150",

		.pm	= &tvp5150_pm_ops,

	},

	.probe_new	= tvp5150_probe,

	.remove		= tvp5150_remove,

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