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authorGrygorii Strashko <grygorii.strashko@ti.com>2016-06-24 21:23:54 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-28 08:57:19 -0400
commit9eae9c7d087592fce04ea7b9b8b486b84b668208 (patch)
tree44bef4b16e7498b0b7e408ed1d42edb9a35b8db8 /drivers/net/ethernet/ti/davinci_mdio.c
parent22899eca586b862d5761f1b4795a3951fc0e502f (diff)
downloadlinux-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>
Diffstat (limited to 'drivers/net/ethernet/ti/davinci_mdio.c')
-rw-r--r--drivers/net/ethernet/ti/davinci_mdio.c45
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",