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-rw-r--r--drivers/usb/phy/Kconfig11
-rw-r--r--drivers/usb/phy/phy-am335x.c2
-rw-r--r--drivers/usb/phy/phy-generic.c8
-rw-r--r--drivers/usb/phy/phy-msm-usb.c178
-rw-r--r--drivers/usb/phy/phy-omap-otg.c4
5 files changed, 196 insertions, 7 deletions
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index c6904742e..b9c409a18 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -21,6 +21,7 @@ config AB8500_USB
config FSL_USB2_OTG
bool "Freescale USB OTG Transceiver Driver"
depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_OTG_FSM && PM
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
select USB_PHY
help
Enable this to support Freescale USB OTG transceiver.
@@ -29,6 +30,7 @@ config ISP1301_OMAP
tristate "Philips ISP1301 with OMAP OTG"
depends on I2C && ARCH_OMAP_OTG
depends on USB
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
select USB_PHY
help
If you say yes here you get support for the Philips ISP1301
@@ -43,7 +45,7 @@ config ISP1301_OMAP
config KEYSTONE_USB_PHY
tristate "Keystone USB PHY Driver"
depends on ARCH_KEYSTONE || COMPILE_TEST
- select NOP_USB_XCEIV
+ depends on NOP_USB_XCEIV
help
Enable this to support Keystone USB phy. This driver provides
interface to interact with USB 2.0 and USB 3.0 PHY that is part
@@ -51,6 +53,7 @@ config KEYSTONE_USB_PHY
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, NOP can't be built-in
select USB_PHY
help
This driver is to be used by all the usb transceiver which are either
@@ -63,9 +66,9 @@ config AM335X_CONTROL_USB
config AM335X_PHY_USB
tristate "AM335x USB PHY Driver"
depends on ARM || COMPILE_TEST
+ depends on NOP_USB_XCEIV
select USB_PHY
select AM335X_CONTROL_USB
- select NOP_USB_XCEIV
select USB_COMMON
help
This driver provides PHY support for that phy which part for the
@@ -92,6 +95,7 @@ config TWL6030_USB
config USB_GPIO_VBUS
tristate "GPIO based peripheral-only VBUS sensing 'transceiver'"
depends on GPIOLIB || COMPILE_TEST
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
select USB_PHY
help
Provides simple GPIO VBUS sensing for controllers with an
@@ -112,6 +116,7 @@ config OMAP_OTG
config TAHVO_USB
tristate "Tahvo USB transceiver driver"
depends on MFD_RETU && EXTCON
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
select USB_PHY
help
Enable this to support USB transceiver on Tahvo. This is used
@@ -140,6 +145,7 @@ config USB_ISP1301
config USB_MSM_OTG
tristate "Qualcomm on-chip USB OTG controller support"
depends on (USB || USB_GADGET) && (ARCH_QCOM || COMPILE_TEST)
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
depends on RESET_CONTROLLER
depends on EXTCON
select USB_PHY
@@ -169,6 +175,7 @@ config USB_QCOM_8X16_PHY
config USB_MV_OTG
tristate "Marvell USB OTG support"
depends on USB_EHCI_MV && USB_MV_UDC && PM && USB_OTG
+ depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
select USB_PHY
help
Say Y here if you want to build Marvell USB OTG transciever
diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index a262a4343..7e5aece76 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -54,7 +54,7 @@ static int am335x_phy_probe(struct platform_device *pdev)
return am_phy->id;
}
- am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node);
+ am_phy->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1);
ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, NULL);
if (ret)
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 980c9dee0..427efb5ee 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -144,14 +144,18 @@ static irqreturn_t nop_gpio_vbus_thread(int irq, void *data)
int usb_gen_phy_init(struct usb_phy *phy)
{
struct usb_phy_generic *nop = dev_get_drvdata(phy->dev);
+ int ret;
if (!IS_ERR(nop->vcc)) {
if (regulator_enable(nop->vcc))
dev_err(phy->dev, "Failed to enable power\n");
}
- if (!IS_ERR(nop->clk))
- clk_prepare_enable(nop->clk);
+ if (!IS_ERR(nop->clk)) {
+ ret = clk_prepare_enable(nop->clk);
+ if (ret)
+ return ret;
+ }
nop_reset(nop);
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 72b387d59..8a3475972 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/extcon.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
@@ -35,6 +36,8 @@
#include <linux/of_device.h>
#include <linux/reboot.h>
#include <linux/reset.h>
+#include <linux/types.h>
+#include <linux/usb/otg.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
@@ -42,10 +45,183 @@
#include <linux/usb/ulpi.h>
#include <linux/usb/gadget.h>
#include <linux/usb/hcd.h>
-#include <linux/usb/msm_hsusb.h>
#include <linux/usb/msm_hsusb_hw.h>
#include <linux/regulator/consumer.h>
+/**
+ * OTG control
+ *
+ * OTG_NO_CONTROL Id/VBUS notifications not required. Useful in host
+ * only configuration.
+ * OTG_PHY_CONTROL Id/VBUS notifications comes form USB PHY.
+ * OTG_PMIC_CONTROL Id/VBUS notifications comes from PMIC hardware.
+ * OTG_USER_CONTROL Id/VBUS notifcations comes from User via sysfs.
+ *
+ */
+enum otg_control_type {
+ OTG_NO_CONTROL = 0,
+ OTG_PHY_CONTROL,
+ OTG_PMIC_CONTROL,
+ OTG_USER_CONTROL,
+};
+
+/**
+ * PHY used in
+ *
+ * INVALID_PHY Unsupported PHY
+ * CI_45NM_INTEGRATED_PHY Chipidea 45nm integrated PHY
+ * SNPS_28NM_INTEGRATED_PHY Synopsis 28nm integrated PHY
+ *
+ */
+enum msm_usb_phy_type {
+ INVALID_PHY = 0,
+ CI_45NM_INTEGRATED_PHY,
+ SNPS_28NM_INTEGRATED_PHY,
+};
+
+#define IDEV_CHG_MAX 1500
+#define IUNIT 100
+
+/**
+ * Different states involved in USB charger detection.
+ *
+ * USB_CHG_STATE_UNDEFINED USB charger is not connected or detection
+ * process is not yet started.
+ * USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact.
+ * USB_CHG_STATE_DCD_DONE Data pin contact is detected.
+ * USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects
+ * between SDP and DCP/CDP).
+ * USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects
+ * between DCP and CDP).
+ * USB_CHG_STATE_DETECTED USB charger type is determined.
+ *
+ */
+enum usb_chg_state {
+ USB_CHG_STATE_UNDEFINED = 0,
+ USB_CHG_STATE_WAIT_FOR_DCD,
+ USB_CHG_STATE_DCD_DONE,
+ USB_CHG_STATE_PRIMARY_DONE,
+ USB_CHG_STATE_SECONDARY_DONE,
+ USB_CHG_STATE_DETECTED,
+};
+
+/**
+ * USB charger types
+ *
+ * USB_INVALID_CHARGER Invalid USB charger.
+ * USB_SDP_CHARGER Standard downstream port. Refers to a downstream port
+ * on USB2.0 compliant host/hub.
+ * USB_DCP_CHARGER Dedicated charger port (AC charger/ Wall charger).
+ * USB_CDP_CHARGER Charging downstream port. Enumeration can happen and
+ * IDEV_CHG_MAX can be drawn irrespective of USB state.
+ *
+ */
+enum usb_chg_type {
+ USB_INVALID_CHARGER = 0,
+ USB_SDP_CHARGER,
+ USB_DCP_CHARGER,
+ USB_CDP_CHARGER,
+};
+
+/**
+ * struct msm_otg_platform_data - platform device data
+ * for msm_otg driver.
+ * @phy_init_seq: PHY configuration sequence values. Value of -1 is reserved as
+ * "do not overwrite default vaule at this address".
+ * @phy_init_sz: PHY configuration sequence size.
+ * @vbus_power: VBUS power on/off routine.
+ * @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
+ * @mode: Supported mode (OTG/peripheral/host).
+ * @otg_control: OTG switch controlled by user/Id pin
+ */
+struct msm_otg_platform_data {
+ int *phy_init_seq;
+ int phy_init_sz;
+ void (*vbus_power)(bool on);
+ unsigned power_budget;
+ enum usb_dr_mode mode;
+ enum otg_control_type otg_control;
+ enum msm_usb_phy_type phy_type;
+ void (*setup_gpio)(enum usb_otg_state state);
+};
+
+/**
+ * struct msm_usb_cable - structure for exteternal connector cable
+ * state tracking
+ * @nb: hold event notification callback
+ * @conn: used for notification registration
+ */
+struct msm_usb_cable {
+ struct notifier_block nb;
+ struct extcon_dev *extcon;
+};
+
+/**
+ * struct msm_otg: OTG driver data. Shared by HCD and DCD.
+ * @otg: USB OTG Transceiver structure.
+ * @pdata: otg device platform data.
+ * @irq: IRQ number assigned for HSUSB controller.
+ * @clk: clock struct of usb_hs_clk.
+ * @pclk: clock struct of usb_hs_pclk.
+ * @core_clk: clock struct of usb_hs_core_clk.
+ * @regs: ioremapped register base address.
+ * @inputs: OTG state machine inputs(Id, SessValid etc).
+ * @sm_work: OTG state machine work.
+ * @in_lpm: indicates low power mode (LPM) state.
+ * @async_int: Async interrupt arrived.
+ * @cur_power: The amount of mA available from downstream port.
+ * @chg_work: Charger detection work.
+ * @chg_state: The state of charger detection process.
+ * @chg_type: The type of charger attached.
+ * @dcd_retires: The retry count used to track Data contact
+ * detection process.
+ * @manual_pullup: true if VBUS is not routed to USB controller/phy
+ * and controller driver therefore enables pull-up explicitly before
+ * starting controller using usbcmd run/stop bit.
+ * @vbus: VBUS signal state trakining, using extcon framework
+ * @id: ID signal state trakining, using extcon framework
+ * @switch_gpio: Descriptor for GPIO used to control external Dual
+ * SPDT USB Switch.
+ * @reboot: Used to inform the driver to route USB D+/D- line to Device
+ * connector
+ */
+struct msm_otg {
+ struct usb_phy phy;
+ struct msm_otg_platform_data *pdata;
+ int irq;
+ struct clk *clk;
+ struct clk *pclk;
+ struct clk *core_clk;
+ void __iomem *regs;
+#define ID 0
+#define B_SESS_VLD 1
+ unsigned long inputs;
+ struct work_struct sm_work;
+ atomic_t in_lpm;
+ int async_int;
+ unsigned cur_power;
+ int phy_number;
+ struct delayed_work chg_work;
+ enum usb_chg_state chg_state;
+ enum usb_chg_type chg_type;
+ u8 dcd_retries;
+ struct regulator *v3p3;
+ struct regulator *v1p8;
+ struct regulator *vddcx;
+
+ struct reset_control *phy_rst;
+ struct reset_control *link_rst;
+ int vdd_levels[3];
+
+ bool manual_pullup;
+
+ struct msm_usb_cable vbus;
+ struct msm_usb_cable id;
+
+ struct gpio_desc *switch_gpio;
+ struct notifier_block reboot;
+};
+
#define MSM_USB_BASE (motg->regs)
#define DRIVER_NAME "msm_otg"
diff --git a/drivers/usb/phy/phy-omap-otg.c b/drivers/usb/phy/phy-omap-otg.c
index c4bf2de6d..6523af4f8 100644
--- a/drivers/usb/phy/phy-omap-otg.c
+++ b/drivers/usb/phy/phy-omap-otg.c
@@ -140,6 +140,8 @@ static int omap_otg_probe(struct platform_device *pdev)
(rev >> 4) & 0xf, rev & 0xf, config->extcon, otg_dev->id,
otg_dev->vbus);
+ platform_set_drvdata(pdev, otg_dev);
+
return 0;
}
@@ -148,7 +150,7 @@ static int omap_otg_remove(struct platform_device *pdev)
struct otg_device *otg_dev = platform_get_drvdata(pdev);
struct extcon_dev *edev = otg_dev->extcon;
- extcon_unregister_notifier(edev, EXTCON_USB_HOST,&otg_dev->id_nb);
+ extcon_unregister_notifier(edev, EXTCON_USB_HOST, &otg_dev->id_nb);
extcon_unregister_notifier(edev, EXTCON_USB, &otg_dev->vbus_nb);
return 0;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 11:51:21 +0000