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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: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko 2016-06-24 21:23:54 +03:00 committed by David S. Miller
parent 22899eca58
commit 9eae9c7d08
1 changed files with 34 additions and 11 deletions
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45
drivers/net/ethernet/ti/davinci_mdio.c
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@ -53,6 +53,10 @@
#define DEF_OUT_FREQ 2200000 /* 2.2 MHz */
struct davinci_mdio_of_param {
int autosuspend_delay_ms;
};
struct davinci_mdio_regs {
u32 version;
u32 control;
@ -332,6 +336,19 @@ static int davinci_mdio_probe_dt(struct mdio_platform_data *data,
}
#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)
{
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 phy_device *phy;
int ret, addr;
int autosuspend_delay_ms = -1;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
@ -352,9 +370,22 @@ static int davinci_mdio_probe(struct platform_device *pdev)
}
if (dev->of_node) {
if (davinci_mdio_probe_dt(&data->pdata, pdev))
data->pdata = default_pdata;
const struct of_device_id *of_id;
ret = davinci_mdio_probe_dt(&data->pdata, pdev);
if (ret)
return ret;
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 {
data->pdata = pdata ? (*pdata) : default_pdata;
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);
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_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)
};
#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 = {
.driver = {
.name = "davinci_mdio",