diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2016-06-24 21:23:54 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-28 08:57:19 -0400 |
| commit | 9eae9c7d087592fce04ea7b9b8b486b84b668208 (patch) | |
| tree | 44bef4b16e7498b0b7e408ed1d42edb9a35b8db8 | |
| parent | 22899eca586b862d5761f1b4795a3951fc0e502f (diff) | |
| download | linux-9eae9c7d087592fce04ea7b9b8b486b84b668208.tar.bz2 | |
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>
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_mdio.c | 45 |
1 files changed, 34 insertions, 11 deletions
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c index ce3ec42fbe34..33df340db1f1 100644 --- a/drivers/net/ethernet/ti/davinci_mdio.c +++ b/drivers/net/ethernet/ti/davinci_mdio.c @@ -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", |