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Commit 9eae9c7d authored by Grygorii Strashko's avatar Grygorii Strashko Committed by David S. Miller
Browse files

drivers: net: davinci_mdio: enable pm runtime auto for ti cpsw-mdio 



Use "ti,cpsw-mdio" to enable PM runtime auto-suspend on supported
platforms, where MDIO is implemented as part of TI CPSW.

Signed-off-by: default avatarGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 22899eca

drivers/net/ethernet/ti/davinci_mdio.c

+34 −11
Original line number Original line Diff line number Diff line
@@ -53,6 +53,10 @@ 




#define DEF_OUT_FREQ		2200000		/* 2.2 MHz */

#define DEF_OUT_FREQ		2200000		/* 2.2 MHz */





struct davinci_mdio_of_param {

	int autosuspend_delay_ms;

};



struct davinci_mdio_regs {

struct davinci_mdio_regs {

	u32	version;

	u32	version;

	u32	control;

	u32	control;
@@ -332,6 +336,19 @@ static int davinci_mdio_probe_dt(struct mdio_platform_data *data, 
}

}

#endif

#endif





#if IS_ENABLED(CONFIG_OF)

static const struct davinci_mdio_of_param of_cpsw_mdio_data = {

	.autosuspend_delay_ms = 100,

};



static const struct of_device_id davinci_mdio_of_mtable[] = {

	{ .compatible = "ti,davinci_mdio", },

	{ .compatible = "ti,cpsw-mdio", .data = &of_cpsw_mdio_data},

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, davinci_mdio_of_mtable);

#endif



static int davinci_mdio_probe(struct platform_device *pdev)

static int davinci_mdio_probe(struct platform_device *pdev)

{

{

	struct mdio_platform_data *pdata = dev_get_platdata(&pdev->dev);

	struct mdio_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -340,6 +357,7 @@ static int davinci_mdio_probe(struct platform_device *pdev) 
	struct resource *res;

	struct resource *res;

	struct phy_device *phy;

	struct phy_device *phy;

	int ret, addr;

	int ret, addr;

	int autosuspend_delay_ms = -1;





	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);

	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);

	if (!data)

	if (!data)
@@ -352,9 +370,22 @@ static int davinci_mdio_probe(struct platform_device *pdev) 
	}

	}





	if (dev->of_node) {

	if (dev->of_node) {

		if (davinci_mdio_probe_dt(&data->pdata, pdev))

		const struct of_device_id	*of_id;

			data->pdata = default_pdata;



		ret = davinci_mdio_probe_dt(&data->pdata, pdev);

		if (ret)

			return ret;

		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);

		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);



		of_id = of_match_device(davinci_mdio_of_mtable, &pdev->dev);

		if (of_id) {

			const struct davinci_mdio_of_param *of_mdio_data;



			of_mdio_data = of_id->data;

			if (of_mdio_data)

				autosuspend_delay_ms =

					of_mdio_data->autosuspend_delay_ms;

		}

	} else {

	} else {

		data->pdata = pdata ? (*pdata) : default_pdata;

		data->pdata = pdata ? (*pdata) : default_pdata;

		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",

		snprintf(data->bus->id, MII_BUS_ID_SIZE, "%s-%x",
@@ -384,7 +415,7 @@ static int davinci_mdio_probe(struct platform_device *pdev) 




	davinci_mdio_init_clk(data);

	davinci_mdio_init_clk(data);





	pm_runtime_set_autosuspend_delay(&pdev->dev, -1);

	pm_runtime_set_autosuspend_delay(&pdev->dev, autosuspend_delay_ms);

	pm_runtime_use_autosuspend(&pdev->dev);

	pm_runtime_use_autosuspend(&pdev->dev);

	pm_runtime_enable(&pdev->dev);

	pm_runtime_enable(&pdev->dev);
@@ -495,14 +526,6 @@ static const struct dev_pm_ops davinci_mdio_pm_ops = { 
	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)

	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)

};

};





#if IS_ENABLED(CONFIG_OF)

static const struct of_device_id davinci_mdio_of_mtable[] = {

	{ .compatible = "ti,davinci_mdio", },

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, davinci_mdio_of_mtable);

#endif



static struct platform_driver davinci_mdio_driver = {

static struct platform_driver davinci_mdio_driver = {

	.driver = {

	.driver = {

		.name	 = "davinci_mdio",

		.name	 = "davinci_mdio",