Merge "usb: phy: Add snapshot of USB QUSB PHY v2 driver" (19dcd81d) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/devicetree/bindings/usb/msm-phy.txt

+9 −1

Original line number	Diff line number	Diff line
		@@ -138,7 +138,7 @@ Example:
		QUSB2 High-Speed PHY

		Required properties:
		- compatible: Should be "qcom,qusb2phy"
		- compatible: Should be "qcom,qusb2phy" or "qcom,qusb2phy-v2"
		- reg: Address and length of the QUSB2 PHY register set
		- reg-names: Should be "qusb_phy_base".
		- <supply-name>-supply: phandle to the regulator device tree node
		@@ -164,16 +164,24 @@ Optional properties:
		"ref_clk_addr" : ref_clk bcr address used for on/off ref_clk before reset.
		"tcsr_phy_clk_scheme_sel": address used to determine QUSB PHY clk source.
		"tcsr_phy_level_shift_keeper": address used to clamp QUSB PHY level shifter.
		"efuse_addr": EFUSE address to read and update analog tune parameter.
		- reg-names: Should be "qscratch_base". The qscratch register bank
		allows us to manipulate QUSB PHY bits eg. to enable D+ pull-up using s/w
		control in device mode. The reg-names property is required if the
		reg property is specified.
		- tcsr_clamp_dig_n" : To enable/disable digital clamp to the phy. When
		de-asserted, it will prevent random leakage from qusb2 phy resulting from
		out of sequence turn on/off of 1p8, 3p3 and DVDD regulators.
		- qcom,qusb-phy-init-seq: QUSB PHY initialization sequence with value,reg pair.
		- qcom,qusb-phy-host-init-seq: QUSB PHY initialization sequence for host mode
		with value,reg pair.
		- qcom,emu-init-seq : emulation initialization sequence with value,reg pair.
		- qcom,phy-pll-reset-seq : emulation PLL reset sequence with value,reg pair.
		- qcom,emu-dcm-reset-seq : emulation DCM reset sequence with value,reg pair.
		- qcom,tune2-efuse-bit-pos: TUNE2 parameter related start bit position with EFUSE register
		- qcom,tune2-efuse-num-bits: Number of bits based value to use for TUNE2 high nibble
		- qcom,efuse-bit-pos: start bit position within EFUSE register
		- qcom,efuse-num-bits: Number of bits to read from EFUSE register
		- qcom,emulation: Indicates that we are running on emulation platform.
		- qcom,hold-reset: Indicates that hold QUSB PHY into reset state.
		- qcom,enable-dpdm-pulsing: enables dp and dm pulsing for PMIC driver to

drivers/usb/dwc3/dwc3-msm.c

+32 −0

Original line number	Diff line number	Diff line
		@@ -1952,6 +1952,36 @@ static void dwc3_msm_bus_vote_w(struct work_struct *w)
		dev_err(mdwc->dev, "Failed to reset bus bw vote %d\n", ret);
		}

		static void dwc3_set_phy_speed_flags(struct dwc3_msm *mdwc)
		{
		struct dwc3 *dwc = platform_get_drvdata(mdwc->dwc3);
		int i, num_ports;
		u32 reg;

		mdwc->hs_phy->flags &= ~(PHY_HSFS_MODE \| PHY_LS_MODE);
		if (mdwc->in_host_mode) {
		reg = dwc3_msm_read_reg(mdwc->base, USB3_HCSPARAMS1);
		num_ports = HCS_MAX_PORTS(reg);
		for (i = 0; i < num_ports; i++) {
		reg = dwc3_msm_read_reg(mdwc->base,
		USB3_PORTSC + i*0x10);
		if (reg & PORT_PE) {
		if (DEV_HIGHSPEED(reg) \|\| DEV_FULLSPEED(reg))
		mdwc->hs_phy->flags \|= PHY_HSFS_MODE;
		else if (DEV_LOWSPEED(reg))
		mdwc->hs_phy->flags \|= PHY_LS_MODE;
		}
		}
		} else {
		if (dwc->gadget.speed == USB_SPEED_HIGH \|\|
		dwc->gadget.speed == USB_SPEED_FULL)
		mdwc->hs_phy->flags \|= PHY_HSFS_MODE;
		else if (dwc->gadget.speed == USB_SPEED_LOW)
		mdwc->hs_phy->flags \|= PHY_LS_MODE;
		}
		}


		static int dwc3_msm_suspend(struct dwc3_msm *mdwc)
		{
		int ret, i;
		@@ -2027,6 +2057,7 @@ static int dwc3_msm_suspend(struct dwc3_msm *mdwc)
		/* disable power event irq, hs and ss phy irq is used as wake up src */
		disable_irq(mdwc->pwr_event_irq);

		dwc3_set_phy_speed_flags(mdwc);
		/* Suspend HS PHY */
		usb_phy_set_suspend(mdwc->hs_phy, 1);

		@@ -2168,6 +2199,7 @@ static int dwc3_msm_resume(struct dwc3_msm *mdwc)
		mdwc->lpm_flags &= ~MDWC3_SS_PHY_SUSPEND;
		}

		mdwc->hs_phy->flags &= ~(PHY_HSFS_MODE \| PHY_LS_MODE);
		/* Resume HS PHY */
		usb_phy_set_suspend(mdwc->hs_phy, 0);

drivers/usb/phy/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -25,7 +25,7 @@ obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o
		obj-$(CONFIG_USB_MSM_HSPHY) += phy-msm-hsusb.o
		obj-$(CONFIG_USB_MSM_SSPHY) += phy-msm-ssusb.o
		obj-$(CONFIG_USB_MSM_SSPHY_QMP) += phy-msm-ssusb-qmp.o
		obj-$(CONFIG_MSM_QUSB_PHY) += phy-msm-qusb.o
		obj-$(CONFIG_MSM_QUSB_PHY) += phy-msm-qusb.o phy-msm-qusb-v2.o
		obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
		obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
		obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o