Yoshihiro Shimoda e6839c31a6 phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current ... The hardware manual should be revised, but the initial value of VBCTRL.OCCLREN is set to 1 actually. If the bit is set, the hardware clears VBCTRL.VBOUT and ADPCTRL.DRVVBUS registers automatically when the hardware detects over-current signal from a USB power switch. However, since the hardware doesn't have any registers which indicates over-current, the driver cannot handle it at all. So, if "is_otg_channel" hardware detects over-current, since ADPCTRL.DRVVBUS register is cleared automatically, the channel cannot be used after that. To resolve this behavior, this patch sets the VBCTRL.OCCLREN to 0 to keep ADPCTRL.DRVVBUS even if the "is_otg_channel" hardware detects over-current. (We assume a USB power switch itself protects over-current and turns the VBUS off.) This patch is inspired by a BSP patch from Kazuya Mizuguchi. Fixes: 1114e2d317 ("phy: rcar-gen3-usb2: change the mode to OTG on the combined channel") Cc: <stable@vger.kernel.org> # v4.5+ Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>		2019-08-26 17:20:02 +05:30
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Kconfig	phy: rcar-gen3-usb2: Add support for r8a77470	2019-04-17 14:13:11 +05:30
Makefile	phy: renesas: convert to SPDX identifiers	2018-09-26 13:09:41 +05:30
phy-rcar-gen2.c	phy: renesas: rcar-gen2: Fix memory leak at error paths	2019-06-12 15:35:44 +05:30
phy-rcar-gen3-pcie.c	phy: Renesas R-Car gen3 PCIe PHY driver	2018-07-10 13:45:11 +05:30
phy-rcar-gen3-usb2.c	phy: renesas: rcar-gen3-usb2: Disable clearing VBUS in over-current	2019-08-26 17:20:02 +05:30
phy-rcar-gen3-usb3.c	phy: renesas: use SPDX identifier for Renesas drivers	2018-09-10 14:28:07 +05:30