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path: root/drivers/usb/dwc3/dwc3-am62.c
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-rw-r--r--drivers/usb/dwc3/dwc3-am62.c90
1 files changed, 41 insertions, 49 deletions
diff --git a/drivers/usb/dwc3/dwc3-am62.c b/drivers/usb/dwc3/dwc3-am62.c
index 173cf3579..ad8a2eadb 100644
--- a/drivers/usb/dwc3/dwc3-am62.c
+++ b/drivers/usb/dwc3/dwc3-am62.c
@@ -89,7 +89,7 @@
#define DWC3_AM62_AUTOSUSPEND_DELAY 100
-struct dwc3_data {
+struct dwc3_am62 {
struct device *dev;
void __iomem *usbss;
struct clk *usb2_refclk;
@@ -115,19 +115,19 @@ static const int dwc3_ti_rate_table[] = { /* in KHZ */
52000,
};
-static inline u32 dwc3_ti_readl(struct dwc3_data *data, u32 offset)
+static inline u32 dwc3_ti_readl(struct dwc3_am62 *am62, u32 offset)
{
- return readl((data->usbss) + offset);
+ return readl((am62->usbss) + offset);
}
-static inline void dwc3_ti_writel(struct dwc3_data *data, u32 offset, u32 value)
+static inline void dwc3_ti_writel(struct dwc3_am62 *am62, u32 offset, u32 value)
{
- writel(value, (data->usbss) + offset);
+ writel(value, (am62->usbss) + offset);
}
-static int phy_syscon_pll_refclk(struct dwc3_data *data)
+static int phy_syscon_pll_refclk(struct dwc3_am62 *am62)
{
- struct device *dev = data->dev;
+ struct device *dev = am62->dev;
struct device_node *node = dev->of_node;
struct of_phandle_args args;
struct regmap *syscon;
@@ -139,16 +139,16 @@ static int phy_syscon_pll_refclk(struct dwc3_data *data)
return PTR_ERR(syscon);
}
- data->syscon = syscon;
+ am62->syscon = syscon;
ret = of_parse_phandle_with_fixed_args(node, "ti,syscon-phy-pll-refclk", 1,
0, &args);
if (ret)
return ret;
- data->offset = args.args[0];
+ am62->offset = args.args[0];
- ret = regmap_update_bits(data->syscon, data->offset, PHY_PLL_REFCLK_MASK, data->rate_code);
+ ret = regmap_update_bits(am62->syscon, am62->offset, PHY_PLL_REFCLK_MASK, am62->rate_code);
if (ret) {
dev_err(dev, "failed to set phy pll reference clock rate\n");
return ret;
@@ -161,32 +161,32 @@ static int dwc3_ti_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = pdev->dev.of_node;
- struct dwc3_data *data;
+ struct dwc3_am62 *am62;
int i, ret;
unsigned long rate;
u32 reg;
- data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
- if (!data)
+ am62 = devm_kzalloc(dev, sizeof(*am62), GFP_KERNEL);
+ if (!am62)
return -ENOMEM;
- data->dev = dev;
- platform_set_drvdata(pdev, data);
+ am62->dev = dev;
+ platform_set_drvdata(pdev, am62);
- data->usbss = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(data->usbss)) {
+ am62->usbss = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(am62->usbss)) {
dev_err(dev, "can't map IOMEM resource\n");
- return PTR_ERR(data->usbss);
+ return PTR_ERR(am62->usbss);
}
- data->usb2_refclk = devm_clk_get(dev, "ref");
- if (IS_ERR(data->usb2_refclk)) {
+ am62->usb2_refclk = devm_clk_get(dev, "ref");
+ if (IS_ERR(am62->usb2_refclk)) {
dev_err(dev, "can't get usb2_refclk\n");
- return PTR_ERR(data->usb2_refclk);
+ return PTR_ERR(am62->usb2_refclk);
}
/* Calculate the rate code */
- rate = clk_get_rate(data->usb2_refclk);
+ rate = clk_get_rate(am62->usb2_refclk);
rate /= 1000; // To KHz
for (i = 0; i < ARRAY_SIZE(dwc3_ti_rate_table); i++) {
if (dwc3_ti_rate_table[i] == rate)
@@ -198,20 +198,20 @@ static int dwc3_ti_probe(struct platform_device *pdev)
return -EINVAL;
}
- data->rate_code = i;
+ am62->rate_code = i;
/* Read the syscon property and set the rate code */
- ret = phy_syscon_pll_refclk(data);
+ ret = phy_syscon_pll_refclk(am62);
if (ret)
return ret;
/* VBUS divider select */
- data->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
- reg = dwc3_ti_readl(data, USBSS_PHY_CONFIG);
- if (data->vbus_divider)
+ am62->vbus_divider = device_property_read_bool(dev, "ti,vbus-divider");
+ reg = dwc3_ti_readl(am62, USBSS_PHY_CONFIG);
+ if (am62->vbus_divider)
reg |= 1 << USBSS_PHY_VBUS_SEL_SHIFT;
- dwc3_ti_writel(data, USBSS_PHY_CONFIG, reg);
+ dwc3_ti_writel(am62, USBSS_PHY_CONFIG, reg);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
@@ -219,7 +219,7 @@ static int dwc3_ti_probe(struct platform_device *pdev)
* Don't ignore its dependencies with its children
*/
pm_suspend_ignore_children(dev, false);
- clk_prepare_enable(data->usb2_refclk);
+ clk_prepare_enable(am62->usb2_refclk);
pm_runtime_get_noresume(dev);
ret = of_platform_populate(node, NULL, NULL, dev);
@@ -229,9 +229,9 @@ static int dwc3_ti_probe(struct platform_device *pdev)
}
/* Set mode valid bit to indicate role is valid */
- reg = dwc3_ti_readl(data, USBSS_MODE_CONTROL);
+ reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL);
reg |= USBSS_MODE_VALID;
- dwc3_ti_writel(data, USBSS_MODE_CONTROL, reg);
+ dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg);
/* Setting up autosuspend */
pm_runtime_set_autosuspend_delay(dev, DWC3_AM62_AUTOSUSPEND_DELAY);
@@ -241,35 +241,27 @@ static int dwc3_ti_probe(struct platform_device *pdev)
return 0;
err_pm_disable:
- clk_disable_unprepare(data->usb2_refclk);
+ clk_disable_unprepare(am62->usb2_refclk);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
return ret;
}
-static int dwc3_ti_remove_core(struct device *dev, void *c)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- platform_device_unregister(pdev);
- return 0;
-}
-
static int dwc3_ti_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct dwc3_data *data = platform_get_drvdata(pdev);
+ struct dwc3_am62 *am62 = platform_get_drvdata(pdev);
u32 reg;
- device_for_each_child(dev, NULL, dwc3_ti_remove_core);
+ pm_runtime_get_sync(dev);
+ of_platform_depopulate(dev);
/* Clear mode valid bit */
- reg = dwc3_ti_readl(data, USBSS_MODE_CONTROL);
+ reg = dwc3_ti_readl(am62, USBSS_MODE_CONTROL);
reg &= ~USBSS_MODE_VALID;
- dwc3_ti_writel(data, USBSS_MODE_CONTROL, reg);
+ dwc3_ti_writel(am62, USBSS_MODE_CONTROL, reg);
pm_runtime_put_sync(dev);
- clk_disable_unprepare(data->usb2_refclk);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
@@ -280,18 +272,18 @@ static int dwc3_ti_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int dwc3_ti_suspend_common(struct device *dev)
{
- struct dwc3_data *data = dev_get_drvdata(dev);
+ struct dwc3_am62 *am62 = dev_get_drvdata(dev);
- clk_disable_unprepare(data->usb2_refclk);
+ clk_disable_unprepare(am62->usb2_refclk);
return 0;
}
static int dwc3_ti_resume_common(struct device *dev)
{
- struct dwc3_data *data = dev_get_drvdata(dev);
+ struct dwc3_am62 *am62 = dev_get_drvdata(dev);
- clk_prepare_enable(data->usb2_refclk);
+ clk_prepare_enable(am62->usb2_refclk);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 23:39:38 +0000