Commit 3b3cd24a authored by Manu Gautam's avatar Manu Gautam Committed by Kishon Vijay Abraham I
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phy: Add USB speed related PHY modes 



Add following USB speed related PHY modes:
LS (Low Speed), FS (Full Speed), HS (High Speed), SS (Super Speed)

Speed related information is required by some QCOM PHY drivers
to program PHY monitor resume/remote-wakeup events in suspended
state. Speed is needed in order to set correct polarity of wakeup
events for detection. E.g. QUSB2 PHY monitors DP/DM line state
depending on whether speed is LS or FS/HS to detect resume.
Similarly QMP USB3 PHY in SS mode should monitor RX terminations
attach/detach and LFPS events depending on SSPHY is active or not.

Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent efb05a50

drivers/phy/phy-core.c

+2 −0
Original line number Diff line number Diff line
@@ -351,6 +351,8 @@ int phy_set_mode(struct phy *phy, enum phy_mode mode) 


	mutex_lock(&phy->mutex);

	ret = phy->ops->set_mode(phy, mode);

	if (!ret)

		phy->attrs.mode = mode;

	mutex_unlock(&phy->mutex);



	return ret;

include/linux/phy/phy.h

+18 −0
Original line number Diff line number Diff line
@@ -25,7 +25,15 @@ struct phy; 
enum phy_mode {

	PHY_MODE_INVALID,

	PHY_MODE_USB_HOST,

	PHY_MODE_USB_HOST_LS,

	PHY_MODE_USB_HOST_FS,

	PHY_MODE_USB_HOST_HS,

	PHY_MODE_USB_HOST_SS,

	PHY_MODE_USB_DEVICE,

	PHY_MODE_USB_DEVICE_LS,

	PHY_MODE_USB_DEVICE_FS,

	PHY_MODE_USB_DEVICE_HS,

	PHY_MODE_USB_DEVICE_SS,

	PHY_MODE_USB_OTG,

	PHY_MODE_SGMII,

	PHY_MODE_10GKR,
@@ -61,6 +69,7 @@ struct phy_ops { 
 */

struct phy_attrs {

	u32			bus_width;

	enum phy_mode		mode;

};



/**
@@ -144,6 +153,10 @@ int phy_exit(struct phy *phy); 
int phy_power_on(struct phy *phy);

int phy_power_off(struct phy *phy);

int phy_set_mode(struct phy *phy, enum phy_mode mode);

static inline enum phy_mode phy_get_mode(struct phy *phy)

{

	return phy->attrs.mode;

}

int phy_reset(struct phy *phy);

int phy_calibrate(struct phy *phy);

static inline int phy_get_bus_width(struct phy *phy)
@@ -260,6 +273,11 @@ static inline int phy_set_mode(struct phy *phy, enum phy_mode mode) 
	return -ENOSYS;

}



static inline enum phy_mode phy_get_mode(struct phy *phy)

{

	return PHY_MODE_INVALID;

}



static inline int phy_reset(struct phy *phy)

{

	if (!phy)

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