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@@ -1,7 +1,7 @@
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/*
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* Allwinner sun4i USB phy driver
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*
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- * Copyright (C) 2014 Hans de Goede <hdegoede@redhat.com>
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+ * Copyright (C) 2014-2015 Hans de Goede <hdegoede@redhat.com>
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*
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* Based on code from
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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@@ -22,23 +22,30 @@
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*/
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#include <linux/clk.h>
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+#include <linux/delay.h>
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#include <linux/err.h>
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+#include <linux/extcon.h>
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#include <linux/io.h>
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+#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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+#include <linux/of_gpio.h>
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#include <linux/phy/phy.h>
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#include <linux/phy/phy-sun4i-usb.h>
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#include <linux/platform_device.h>
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+#include <linux/power_supply.h>
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#include <linux/regulator/consumer.h>
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#include <linux/reset.h>
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+#include <linux/workqueue.h>
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#define REG_ISCR 0x00
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-#define REG_PHYCTL 0x04
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+#define REG_PHYCTL_A10 0x04
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#define REG_PHYBIST 0x08
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#define REG_PHYTUNE 0x0c
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+#define REG_PHYCTL_A33 0x10
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#define PHYCTL_DATA BIT(7)
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@@ -47,6 +54,17 @@
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#define SUNXI_AHB_INCRX_ALIGN_EN BIT(8)
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#define SUNXI_ULPI_BYPASS_EN BIT(0)
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+/* ISCR, Interface Status and Control bits */
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+#define ISCR_ID_PULLUP_EN (1 << 17)
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+#define ISCR_DPDM_PULLUP_EN (1 << 16)
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+/* sunxi has the phy id/vbus pins not connected, so we use the force bits */
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+#define ISCR_FORCE_ID_MASK (3 << 14)
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+#define ISCR_FORCE_ID_LOW (2 << 14)
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+#define ISCR_FORCE_ID_HIGH (3 << 14)
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+#define ISCR_FORCE_VBUS_MASK (3 << 12)
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+#define ISCR_FORCE_VBUS_LOW (2 << 12)
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+#define ISCR_FORCE_VBUS_HIGH (3 << 12)
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+
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/* Common Control Bits for Both PHYs */
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#define PHY_PLL_BW 0x03
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#define PHY_RES45_CAL_EN 0x0c
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@@ -63,60 +81,124 @@
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#define MAX_PHYS 3
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+/*
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+ * Note do not raise the debounce time, we must report Vusb high within 100ms
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+ * otherwise we get Vbus errors
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+ */
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+#define DEBOUNCE_TIME msecs_to_jiffies(50)
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+#define POLL_TIME msecs_to_jiffies(250)
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+
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struct sun4i_usb_phy_data {
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void __iomem *base;
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struct mutex mutex;
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int num_phys;
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u32 disc_thresh;
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+ bool has_a33_phyctl;
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struct sun4i_usb_phy {
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struct phy *phy;
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void __iomem *pmu;
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struct regulator *vbus;
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struct reset_control *reset;
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struct clk *clk;
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+ bool regulator_on;
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int index;
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} phys[MAX_PHYS];
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+ /* phy0 / otg related variables */
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+ struct extcon_dev *extcon;
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+ bool phy0_init;
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+ bool phy0_poll;
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+ struct gpio_desc *id_det_gpio;
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+ struct gpio_desc *vbus_det_gpio;
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+ struct power_supply *vbus_power_supply;
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+ struct notifier_block vbus_power_nb;
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+ bool vbus_power_nb_registered;
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+ int id_det_irq;
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+ int vbus_det_irq;
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+ int id_det;
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+ int vbus_det;
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+ struct delayed_work detect;
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};
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#define to_sun4i_usb_phy_data(phy) \
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container_of((phy), struct sun4i_usb_phy_data, phys[(phy)->index])
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+static void sun4i_usb_phy0_update_iscr(struct phy *_phy, u32 clr, u32 set)
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+{
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+ struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
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+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
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+ u32 iscr;
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+
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+ iscr = readl(data->base + REG_ISCR);
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+ iscr &= ~clr;
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+ iscr |= set;
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+ writel(iscr, data->base + REG_ISCR);
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+}
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+
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+static void sun4i_usb_phy0_set_id_detect(struct phy *phy, u32 val)
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+{
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+ if (val)
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+ val = ISCR_FORCE_ID_HIGH;
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+ else
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+ val = ISCR_FORCE_ID_LOW;
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+
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+ sun4i_usb_phy0_update_iscr(phy, ISCR_FORCE_ID_MASK, val);
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+}
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+
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+static void sun4i_usb_phy0_set_vbus_detect(struct phy *phy, u32 val)
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+{
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+ if (val)
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+ val = ISCR_FORCE_VBUS_HIGH;
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+ else
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+ val = ISCR_FORCE_VBUS_LOW;
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+
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+ sun4i_usb_phy0_update_iscr(phy, ISCR_FORCE_VBUS_MASK, val);
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+}
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+
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static void sun4i_usb_phy_write(struct sun4i_usb_phy *phy, u32 addr, u32 data,
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int len)
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{
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struct sun4i_usb_phy_data *phy_data = to_sun4i_usb_phy_data(phy);
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u32 temp, usbc_bit = BIT(phy->index * 2);
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+ void *phyctl;
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int i;
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mutex_lock(&phy_data->mutex);
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+ if (phy_data->has_a33_phyctl) {
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+ phyctl = phy_data->base + REG_PHYCTL_A33;
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+ /* A33 needs us to set phyctl to 0 explicitly */
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+ writel(0, phyctl);
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+ } else {
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+ phyctl = phy_data->base + REG_PHYCTL_A10;
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+ }
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+
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for (i = 0; i < len; i++) {
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- temp = readl(phy_data->base + REG_PHYCTL);
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+ temp = readl(phyctl);
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/* clear the address portion */
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temp &= ~(0xff << 8);
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/* set the address */
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temp |= ((addr + i) << 8);
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- writel(temp, phy_data->base + REG_PHYCTL);
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+ writel(temp, phyctl);
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/* set the data bit and clear usbc bit*/
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- temp = readb(phy_data->base + REG_PHYCTL);
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+ temp = readb(phyctl);
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if (data & 0x1)
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temp |= PHYCTL_DATA;
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else
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temp &= ~PHYCTL_DATA;
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temp &= ~usbc_bit;
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- writeb(temp, phy_data->base + REG_PHYCTL);
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+ writeb(temp, phyctl);
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/* pulse usbc_bit */
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- temp = readb(phy_data->base + REG_PHYCTL);
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+ temp = readb(phyctl);
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temp |= usbc_bit;
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- writeb(temp, phy_data->base + REG_PHYCTL);
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+ writeb(temp, phyctl);
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- temp = readb(phy_data->base + REG_PHYCTL);
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+ temp = readb(phyctl);
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temp &= ~usbc_bit;
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- writeb(temp, phy_data->base + REG_PHYCTL);
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+ writeb(temp, phyctl);
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data >>= 1;
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}
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@@ -171,12 +253,39 @@ static int sun4i_usb_phy_init(struct phy *_phy)
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sun4i_usb_phy_passby(phy, 1);
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+ if (phy->index == 0) {
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+ data->phy0_init = true;
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+
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+ /* Enable pull-ups */
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+ sun4i_usb_phy0_update_iscr(_phy, 0, ISCR_DPDM_PULLUP_EN);
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+ sun4i_usb_phy0_update_iscr(_phy, 0, ISCR_ID_PULLUP_EN);
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+
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+ if (data->id_det_gpio) {
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+ /* OTG mode, force ISCR and cable state updates */
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+ data->id_det = -1;
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+ data->vbus_det = -1;
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+ queue_delayed_work(system_wq, &data->detect, 0);
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+ } else {
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+ /* Host only mode */
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+ sun4i_usb_phy0_set_id_detect(_phy, 0);
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+ sun4i_usb_phy0_set_vbus_detect(_phy, 1);
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+ }
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+ }
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+
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return 0;
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}
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static int sun4i_usb_phy_exit(struct phy *_phy)
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{
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struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
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+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
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+
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+ if (phy->index == 0) {
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+ /* Disable pull-ups */
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+ sun4i_usb_phy0_update_iscr(_phy, ISCR_DPDM_PULLUP_EN, 0);
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+ sun4i_usb_phy0_update_iscr(_phy, ISCR_ID_PULLUP_EN, 0);
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+ data->phy0_init = false;
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+ }
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sun4i_usb_phy_passby(phy, 0);
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reset_control_assert(phy->reset);
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@@ -185,23 +294,74 @@ static int sun4i_usb_phy_exit(struct phy *_phy)
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return 0;
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}
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+static int sun4i_usb_phy0_get_vbus_det(struct sun4i_usb_phy_data *data)
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+{
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+ if (data->vbus_det_gpio)
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+ return gpiod_get_value_cansleep(data->vbus_det_gpio);
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+
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+ if (data->vbus_power_supply) {
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+ union power_supply_propval val;
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+ int r;
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+
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+ r = power_supply_get_property(data->vbus_power_supply,
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+ POWER_SUPPLY_PROP_PRESENT, &val);
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+ if (r == 0)
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+ return val.intval;
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+ }
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+
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+ /* Fallback: report vbus as high */
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+ return 1;
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+}
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+
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+static bool sun4i_usb_phy0_have_vbus_det(struct sun4i_usb_phy_data *data)
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+{
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+ return data->vbus_det_gpio || data->vbus_power_supply;
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+}
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+
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static int sun4i_usb_phy_power_on(struct phy *_phy)
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{
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struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
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- int ret = 0;
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+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
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+ int ret;
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+
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+ if (!phy->vbus || phy->regulator_on)
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+ return 0;
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+
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+ /* For phy0 only turn on Vbus if we don't have an ext. Vbus */
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+ if (phy->index == 0 && sun4i_usb_phy0_have_vbus_det(data) &&
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+ data->vbus_det)
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+ return 0;
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+
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+ ret = regulator_enable(phy->vbus);
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+ if (ret)
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+ return ret;
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+
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+ phy->regulator_on = true;
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- if (phy->vbus)
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- ret = regulator_enable(phy->vbus);
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+ /* We must report Vbus high within OTG_TIME_A_WAIT_VRISE msec. */
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+ if (phy->index == 0 && data->vbus_det_gpio && data->phy0_poll)
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+ mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
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- return ret;
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+ return 0;
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}
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static int sun4i_usb_phy_power_off(struct phy *_phy)
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{
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struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
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+ struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
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+
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+ if (!phy->vbus || !phy->regulator_on)
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+ return 0;
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+
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+ regulator_disable(phy->vbus);
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+ phy->regulator_on = false;
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- if (phy->vbus)
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- regulator_disable(phy->vbus);
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+ /*
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+ * phy0 vbus typically slowly discharges, sometimes this causes the
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+ * Vbus gpio to not trigger an edge irq on Vbus off, so force a rescan.
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+ */
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+ if (phy->index == 0 && data->vbus_det_gpio && !data->phy0_poll)
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+ mod_delayed_work(system_wq, &data->detect, POLL_TIME);
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return 0;
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}
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@@ -214,7 +374,7 @@ void sun4i_usb_phy_set_squelch_detect(struct phy *_phy, bool enabled)
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}
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EXPORT_SYMBOL_GPL(sun4i_usb_phy_set_squelch_detect);
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-static struct phy_ops sun4i_usb_phy_ops = {
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+static const struct phy_ops sun4i_usb_phy_ops = {
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.init = sun4i_usb_phy_init,
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.exit = sun4i_usb_phy_exit,
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.power_on = sun4i_usb_phy_power_on,
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@@ -222,6 +382,95 @@ static struct phy_ops sun4i_usb_phy_ops = {
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.owner = THIS_MODULE,
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};
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+static void sun4i_usb_phy0_id_vbus_det_scan(struct work_struct *work)
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+{
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+ struct sun4i_usb_phy_data *data =
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+ container_of(work, struct sun4i_usb_phy_data, detect.work);
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+ struct phy *phy0 = data->phys[0].phy;
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+ int id_det, vbus_det, id_notify = 0, vbus_notify = 0;
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+
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+ id_det = gpiod_get_value_cansleep(data->id_det_gpio);
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+ vbus_det = sun4i_usb_phy0_get_vbus_det(data);
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+
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+ mutex_lock(&phy0->mutex);
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+
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+ if (!data->phy0_init) {
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+ mutex_unlock(&phy0->mutex);
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+ return;
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+ }
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+
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+ if (id_det != data->id_det) {
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+ /*
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+ * When a host cable (id == 0) gets plugged in on systems
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+ * without vbus detection report vbus low for long enough for
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+ * the musb-ip to end the current device session.
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+ */
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+ if (!sun4i_usb_phy0_have_vbus_det(data) && id_det == 0) {
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+ sun4i_usb_phy0_set_vbus_detect(phy0, 0);
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+ msleep(200);
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+ sun4i_usb_phy0_set_vbus_detect(phy0, 1);
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+ }
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+ sun4i_usb_phy0_set_id_detect(phy0, id_det);
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+ data->id_det = id_det;
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+ id_notify = 1;
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+ }
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+
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+ if (vbus_det != data->vbus_det) {
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+ sun4i_usb_phy0_set_vbus_detect(phy0, vbus_det);
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+ data->vbus_det = vbus_det;
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+ vbus_notify = 1;
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+ }
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+
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+ mutex_unlock(&phy0->mutex);
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+
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+ if (id_notify) {
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+ extcon_set_cable_state_(data->extcon, EXTCON_USB_HOST,
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+ !id_det);
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+ /*
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+ * When a host cable gets unplugged (id == 1) on systems
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+ * without vbus detection report vbus low for long enough to
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+ * the musb-ip to end the current host session.
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+ */
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+ if (!sun4i_usb_phy0_have_vbus_det(data) && id_det == 1) {
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+ mutex_lock(&phy0->mutex);
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+ sun4i_usb_phy0_set_vbus_detect(phy0, 0);
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+ msleep(1000);
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+ sun4i_usb_phy0_set_vbus_detect(phy0, 1);
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+ mutex_unlock(&phy0->mutex);
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+ }
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+ }
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+
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+ if (vbus_notify)
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+ extcon_set_cable_state_(data->extcon, EXTCON_USB, vbus_det);
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+
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+ if (data->phy0_poll)
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+ queue_delayed_work(system_wq, &data->detect, POLL_TIME);
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+}
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+
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|
+static irqreturn_t sun4i_usb_phy0_id_vbus_det_irq(int irq, void *dev_id)
|
|
|
+{
|
|
|
+ struct sun4i_usb_phy_data *data = dev_id;
|
|
|
+
|
|
|
+ /* vbus or id changed, let the pins settle and then scan them */
|
|
|
+ mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
|
|
|
+
|
|
|
+ return IRQ_HANDLED;
|
|
|
+}
|
|
|
+
|
|
|
+static int sun4i_usb_phy0_vbus_notify(struct notifier_block *nb,
|
|
|
+ unsigned long val, void *v)
|
|
|
+{
|
|
|
+ struct sun4i_usb_phy_data *data =
|
|
|
+ container_of(nb, struct sun4i_usb_phy_data, vbus_power_nb);
|
|
|
+ struct power_supply *psy = v;
|
|
|
+
|
|
|
+ /* Properties on the vbus_power_supply changed, scan vbus_det */
|
|
|
+ if (val == PSY_EVENT_PROP_CHANGED && psy == data->vbus_power_supply)
|
|
|
+ mod_delayed_work(system_wq, &data->detect, DEBOUNCE_TIME);
|
|
|
+
|
|
|
+ return NOTIFY_OK;
|
|
|
+}
|
|
|
+
|
|
|
static struct phy *sun4i_usb_phy_xlate(struct device *dev,
|
|
|
struct of_phandle_args *args)
|
|
|
{
|
|
@@ -233,6 +482,29 @@ static struct phy *sun4i_usb_phy_xlate(struct device *dev,
|
|
|
return data->phys[args->args[0]].phy;
|
|
|
}
|
|
|
|
|
|
+static int sun4i_usb_phy_remove(struct platform_device *pdev)
|
|
|
+{
|
|
|
+ struct device *dev = &pdev->dev;
|
|
|
+ struct sun4i_usb_phy_data *data = dev_get_drvdata(dev);
|
|
|
+
|
|
|
+ if (data->vbus_power_nb_registered)
|
|
|
+ power_supply_unreg_notifier(&data->vbus_power_nb);
|
|
|
+ if (data->id_det_irq >= 0)
|
|
|
+ devm_free_irq(dev, data->id_det_irq, data);
|
|
|
+ if (data->vbus_det_irq >= 0)
|
|
|
+ devm_free_irq(dev, data->vbus_det_irq, data);
|
|
|
+
|
|
|
+ cancel_delayed_work_sync(&data->detect);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static const unsigned int sun4i_usb_phy0_cable[] = {
|
|
|
+ EXTCON_USB,
|
|
|
+ EXTCON_USB_HOST,
|
|
|
+ EXTCON_NONE,
|
|
|
+};
|
|
|
+
|
|
|
static int sun4i_usb_phy_probe(struct platform_device *pdev)
|
|
|
{
|
|
|
struct sun4i_usb_phy_data *data;
|
|
@@ -241,35 +513,87 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
|
|
|
struct phy_provider *phy_provider;
|
|
|
bool dedicated_clocks;
|
|
|
struct resource *res;
|
|
|
- int i;
|
|
|
+ int i, ret;
|
|
|
|
|
|
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
|
|
|
if (!data)
|
|
|
return -ENOMEM;
|
|
|
|
|
|
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"))
|
|
|
+ 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,sun4i-a10-usb-phy") ||
|
|
|
- of_device_is_compatible(np, "allwinner,sun6i-a31-usb-phy"))
|
|
|
- data->disc_thresh = 3;
|
|
|
- else
|
|
|
+ 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"))
|
|
|
+ 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;
|
|
|
+
|
|
|
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->id_det_gpio = devm_gpiod_get(dev, "usb0_id_det", GPIOD_IN);
|
|
|
+ if (IS_ERR(data->id_det_gpio)) {
|
|
|
+ if (PTR_ERR(data->id_det_gpio) == -EPROBE_DEFER)
|
|
|
+ return -EPROBE_DEFER;
|
|
|
+ data->id_det_gpio = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ data->vbus_det_gpio = devm_gpiod_get(dev, "usb0_vbus_det", GPIOD_IN);
|
|
|
+ if (IS_ERR(data->vbus_det_gpio)) {
|
|
|
+ if (PTR_ERR(data->vbus_det_gpio) == -EPROBE_DEFER)
|
|
|
+ return -EPROBE_DEFER;
|
|
|
+ data->vbus_det_gpio = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (of_find_property(np, "usb0_vbus_power-supply", NULL)) {
|
|
|
+ data->vbus_power_supply = devm_power_supply_get_by_phandle(dev,
|
|
|
+ "usb0_vbus_power-supply");
|
|
|
+ if (IS_ERR(data->vbus_power_supply))
|
|
|
+ return PTR_ERR(data->vbus_power_supply);
|
|
|
+
|
|
|
+ if (!data->vbus_power_supply)
|
|
|
+ return -EPROBE_DEFER;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* vbus_det without id_det makes no sense, and is not supported */
|
|
|
+ if (sun4i_usb_phy0_have_vbus_det(data) && !data->id_det_gpio) {
|
|
|
+ dev_err(dev, "usb0_id_det missing or invalid\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (data->id_det_gpio) {
|
|
|
+ data->extcon = devm_extcon_dev_allocate(dev,
|
|
|
+ sun4i_usb_phy0_cable);
|
|
|
+ if (IS_ERR(data->extcon))
|
|
|
+ return PTR_ERR(data->extcon);
|
|
|
+
|
|
|
+ ret = devm_extcon_dev_register(dev, data->extcon);
|
|
|
+ if (ret) {
|
|
|
+ dev_err(dev, "failed to register extcon: %d\n", ret);
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
for (i = 0; i < data->num_phys; i++) {
|
|
|
struct sun4i_usb_phy *phy = data->phys + i;
|
|
|
char name[16];
|
|
@@ -319,10 +643,54 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
|
|
|
phy_set_drvdata(phy->phy, &data->phys[i]);
|
|
|
}
|
|
|
|
|
|
- dev_set_drvdata(dev, data);
|
|
|
+ data->id_det_irq = gpiod_to_irq(data->id_det_gpio);
|
|
|
+ data->vbus_det_irq = gpiod_to_irq(data->vbus_det_gpio);
|
|
|
+ if ((data->id_det_gpio && data->id_det_irq < 0) ||
|
|
|
+ (data->vbus_det_gpio && data->vbus_det_irq < 0))
|
|
|
+ data->phy0_poll = true;
|
|
|
+
|
|
|
+ if (data->id_det_irq >= 0) {
|
|
|
+ ret = devm_request_irq(dev, data->id_det_irq,
|
|
|
+ sun4i_usb_phy0_id_vbus_det_irq,
|
|
|
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
|
|
|
+ "usb0-id-det", data);
|
|
|
+ if (ret) {
|
|
|
+ dev_err(dev, "Err requesting id-det-irq: %d\n", ret);
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (data->vbus_det_irq >= 0) {
|
|
|
+ ret = devm_request_irq(dev, data->vbus_det_irq,
|
|
|
+ sun4i_usb_phy0_id_vbus_det_irq,
|
|
|
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
|
|
|
+ "usb0-vbus-det", data);
|
|
|
+ if (ret) {
|
|
|
+ dev_err(dev, "Err requesting vbus-det-irq: %d\n", ret);
|
|
|
+ data->vbus_det_irq = -1;
|
|
|
+ sun4i_usb_phy_remove(pdev); /* Stop detect work */
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (data->vbus_power_supply) {
|
|
|
+ data->vbus_power_nb.notifier_call = sun4i_usb_phy0_vbus_notify;
|
|
|
+ data->vbus_power_nb.priority = 0;
|
|
|
+ ret = power_supply_reg_notifier(&data->vbus_power_nb);
|
|
|
+ if (ret) {
|
|
|
+ sun4i_usb_phy_remove(pdev); /* Stop detect work */
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ data->vbus_power_nb_registered = true;
|
|
|
+ }
|
|
|
+
|
|
|
phy_provider = devm_of_phy_provider_register(dev, sun4i_usb_phy_xlate);
|
|
|
+ if (IS_ERR(phy_provider)) {
|
|
|
+ sun4i_usb_phy_remove(pdev); /* Stop detect work */
|
|
|
+ return PTR_ERR(phy_provider);
|
|
|
+ }
|
|
|
|
|
|
- return PTR_ERR_OR_ZERO(phy_provider);
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
static const struct of_device_id sun4i_usb_phy_of_match[] = {
|
|
@@ -330,12 +698,15 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = {
|
|
|
{ .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" },
|
|
|
{ },
|
|
|
};
|
|
|
MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);
|
|
|
|
|
|
static struct platform_driver sun4i_usb_phy_driver = {
|
|
|
.probe = sun4i_usb_phy_probe,
|
|
|
+ .remove = sun4i_usb_phy_remove,
|
|
|
.driver = {
|
|
|
.of_match_table = sun4i_usb_phy_of_match,
|
|
|
.name = "sun4i-usb-phy",
|