Linux-libre 4.5-gnu

1 files changed, 109 insertions, 49 deletions

diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index b12964b70..bae54f7a1 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -32,6 +32,7 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <linux/phy/phy.h>
 #include <linux/phy/phy-sun4i-usb.h>
@@ -46,6 +47,9 @@
 #define REG_PHYBIST			0x08
 #define REG_PHYTUNE			0x0c
 #define REG_PHYCTL_A33			0x10
+#define REG_PHY_UNK_H3			0x20
+
+#define REG_PMU_UNK_H3			0x10
 
 #define PHYCTL_DATA			BIT(7)
 
@@ -79,7 +83,7 @@
 #define PHY_DISCON_TH_SEL		0x2a
 #define PHY_SQUELCH_DETECT		0x3c
 
-#define MAX_PHYS			3
+#define MAX_PHYS			4
 
 /*
  * Note do not raise the debounce time, we must report Vusb high within 100ms
@@ -88,12 +92,24 @@
 #define DEBOUNCE_TIME			msecs_to_jiffies(50)
 #define POLL_TIME			msecs_to_jiffies(250)
 
+enum sun4i_usb_phy_type {
+	sun4i_a10_phy,
+	sun8i_a33_phy,
+	sun8i_h3_phy,
+};
+
+struct sun4i_usb_phy_cfg {
+	int num_phys;
+	enum sun4i_usb_phy_type type;
+	u32 disc_thresh;
+	u8 phyctl_offset;
+	bool dedicated_clocks;
+};
+
 struct sun4i_usb_phy_data {
 	void __iomem *base;
+	const struct sun4i_usb_phy_cfg *cfg;
 	struct mutex mutex;
-	int num_phys;
-	u32 disc_thresh;
-	bool has_a33_phyctl;
 	struct sun4i_usb_phy {
 		struct phy *phy;
 		void __iomem *pmu;
@@ -159,17 +175,14 @@ static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
 {
 	struct sun4i_usb_phy_data *phy_data = to_sun4i_usb_phy_data(phy);
 	u32 temp, usbc_bit = BIT(phy->index * 2);
-	void *phyctl;
+	void *phyctl = phy_data->base + phy_data->cfg->phyctl_offset;
 	int i;
 
 	mutex_lock(&phy_data->mutex);
 
-	if (phy_data->has_a33_phyctl) {
-		phyctl = phy_data->base + REG_PHYCTL_A33;
+	if (phy_data->cfg->type == sun8i_a33_phy) {
 		/* A33 needs us to set phyctl to 0 explicitly */
 		writel(0, phyctl);
-	} else {
-		phyctl = phy_data->base + REG_PHYCTL_A10;
 	}
 
 	for (i = 0; i < len; i++) {
@@ -230,6 +243,7 @@ static int sun4i_usb_phy_init(struct phy *_phy)
 	struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
 	struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
 	int ret;
+	u32 val;
 
 	ret = clk_prepare_enable(phy->clk);
 	if (ret)
@@ -241,15 +255,26 @@ static int sun4i_usb_phy_init(struct phy *_phy)
 		return ret;
 	}
 
-	/* Enable USB 45 Ohm resistor calibration */
-	if (phy->index == 0)
-		sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1);
+	if (data->cfg->type == sun8i_h3_phy) {
+		if (phy->index == 0) {
+			val = readl(data->base + REG_PHY_UNK_H3);
+			writel(val & ~1, data->base + REG_PHY_UNK_H3);
+		}
 
-	/* Adjust PHY's magnitude and rate */
-	sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, 0x14, 5);
+		val = readl(phy->pmu + REG_PMU_UNK_H3);
+		writel(val & ~2, phy->pmu + REG_PMU_UNK_H3);
+	} else {
+		/* Enable USB 45 Ohm resistor calibration */
+		if (phy->index == 0)
+			sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1);
 
-	/* Disconnect threshold adjustment */
-	sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL, data->disc_thresh, 2);
+		/* Adjust PHY's magnitude and rate */
+		sun4i_usb_phy_write(phy, PHY_TX_AMPLITUDE_TUNE, 0x14, 5);
+
+		/* Disconnect threshold adjustment */
+		sun4i_usb_phy_write(phy, PHY_DISCON_TH_SEL,
+				    data->cfg->disc_thresh, 2);
+	}
 
 	sun4i_usb_phy_passby(phy, 1);
 
@@ -476,7 +501,7 @@ static struct phy *sun4i_usb_phy_xlate(struct device *dev,
 {
 	struct sun4i_usb_phy_data *data = dev_get_drvdata(dev);
 
-	if (args->args[0] >= data->num_phys)
+	if (args->args[0] >= data->cfg->num_phys)
 		return ERR_PTR(-ENODEV);
 
 	return data->phys[args->args[0]].phy;
@@ -511,7 +536,6 @@ 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, ret;
 
@@ -522,29 +546,9 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	mutex_init(&data->mutex);
 	INIT_DELAYED_WORK(&data->detect, sun4i_usb_phy0_id_vbus_det_scan);
 	dev_set_drvdata(dev, data);
-
-	if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a23-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		data->num_phys = 2;
-	else
-		data->num_phys = 3;
-
-	if (of_device_is_compatible(np, "allwinner,sun5i-a13-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun7i-a20-usb-phy"))
-		data->disc_thresh = 2;
-	else
-		data->disc_thresh = 3;
-
-	if (of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a23-usb-phy") ||
-	    of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		dedicated_clocks = true;
-	else
-		dedicated_clocks = false;
-
-	if (of_device_is_compatible(np, "allwinner,sun8i-a33-usb-phy"))
-		data->has_a33_phyctl = true;
+	data->cfg = of_device_get_match_data(dev);
+	if (!data->cfg)
+		return -EINVAL;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy_ctrl");
 	data->base = devm_ioremap_resource(dev, res);
@@ -590,7 +594,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 		}
 	}
 
-	for (i = 0; i < data->num_phys; i++) {
+	for (i = 0; i < data->cfg->num_phys; i++) {
 		struct sun4i_usb_phy *phy = data->phys + i;
 		char name[16];
 
@@ -602,7 +606,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 			phy->vbus = NULL;
 		}
 
-		if (dedicated_clocks)
+		if (data->cfg->dedicated_clocks)
 			snprintf(name, sizeof(name), "usb%d_phy", i);
 		else
 			strlcpy(name, "usb_phy", sizeof(name));
@@ -689,13 +693,69 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = {
+	.num_phys = 2,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 2,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = {
+	.num_phys = 3,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 2,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = false,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = {
+	.num_phys = 2,
+	.type = sun4i_a10_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A10,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = {
+	.num_phys = 2,
+	.type = sun8i_a33_phy,
+	.disc_thresh = 3,
+	.phyctl_offset = REG_PHYCTL_A33,
+	.dedicated_clocks = true,
+};
+
+static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = {
+	.num_phys = 4,
+	.type = sun8i_h3_phy,
+	.disc_thresh = 3,
+	.dedicated_clocks = true,
+};
+
 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" },
-	{ .compatible = "allwinner,sun8i-a23-usb-phy" },
-	{ .compatible = "allwinner,sun8i-a33-usb-phy" },
+	{ .compatible = "allwinner,sun4i-a10-usb-phy", .data = &sun4i_a10_cfg },
+	{ .compatible = "allwinner,sun5i-a13-usb-phy", .data = &sun5i_a13_cfg },
+	{ .compatible = "allwinner,sun6i-a31-usb-phy", .data = &sun6i_a31_cfg },
+	{ .compatible = "allwinner,sun7i-a20-usb-phy", .data = &sun7i_a20_cfg },
+	{ .compatible = "allwinner,sun8i-a23-usb-phy", .data = &sun8i_a23_cfg },
+	{ .compatible = "allwinner,sun8i-a33-usb-phy", .data = &sun8i_a33_cfg },
+	{ .compatible = "allwinner,sun8i-h3-usb-phy", .data = &sun8i_h3_cfg },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);