diff options
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-sun4i-usb.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index 66a87d50512b..115d8d5190d5 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -61,7 +61,6 @@ #define MAX_PHYS 3 struct sun4i_usb_phy_data { - struct clk *clk; void __iomem *base; struct mutex mutex; int num_phys; @@ -71,6 +70,7 @@ struct sun4i_usb_phy_data { void __iomem *pmu; struct regulator *vbus; struct reset_control *reset; + struct clk *clk; int index; } phys[MAX_PHYS]; }; @@ -146,13 +146,13 @@ static int sun4i_usb_phy_init(struct phy *_phy) struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy); int ret; - ret = clk_prepare_enable(data->clk); + ret = clk_prepare_enable(phy->clk); if (ret) return ret; ret = reset_control_deassert(phy->reset); if (ret) { - clk_disable_unprepare(data->clk); + clk_disable_unprepare(phy->clk); return ret; } @@ -170,11 +170,10 @@ static int sun4i_usb_phy_init(struct phy *_phy) static int sun4i_usb_phy_exit(struct phy *_phy) { struct sun4i_usb_phy *phy = phy_get_drvdata(_phy); - struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy); sun4i_usb_phy_passby(phy, 0); reset_control_assert(phy->reset); - clk_disable_unprepare(data->clk); + clk_disable_unprepare(phy->clk); return 0; } @@ -225,6 +224,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct phy_provider *phy_provider; + bool dedicated_clocks; struct resource *res; int i; @@ -244,17 +244,16 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) else data->disc_thresh = 2; + if (of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy")) + dedicated_clocks = true; + else + dedicated_clocks = false; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl"); data->base = devm_ioremap_resource(dev, res); if (IS_ERR(data->base)) return PTR_ERR(data->base); - data->clk = devm_clk_get(dev, "usb_phy"); - if (IS_ERR(data->clk)) { - dev_err(dev, "could not get usb_phy clock\n"); - return PTR_ERR(data->clk); - } - /* Skip 0, 0 is the phy for otg which is not yet supported. */ for (i = 1; i < data->num_phys; i++) { struct sun4i_usb_phy *phy = data->phys + i; @@ -268,6 +267,17 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) phy->vbus = NULL; } + if (dedicated_clocks) + snprintf(name, sizeof(name), "usb%d_phy", i); + else + strlcpy(name, "usb_phy", sizeof(name)); + + phy->clk = devm_clk_get(dev, name); + if (IS_ERR(phy->clk)) { + dev_err(dev, "failed to get clock %s\n", name); + return PTR_ERR(phy->clk); + } + snprintf(name, sizeof(name), "usb%d_reset", i); phy->reset = devm_reset_control_get(dev, name); if (IS_ERR(phy->reset)) { @@ -305,6 +315,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) static const struct of_device_id sun4i_usb_phy_of_match[] = { { .compatible = "allwinner,sun4i-a10-usb-phy" }, { .compatible = "allwinner,sun5i-a13-usb-phy" }, + { .compatible = "allwinner,sun6i-a31-usb-phy" }, { .compatible = "allwinner,sun7i-a20-usb-phy" }, { }, }; |