Chen-Yu Tsai d7119224bf phy: allwinner: sun4i-usb: poll vbus changes on A23/A33 when driving VBUS ... The AXP223 PMIC, like the AXP221, does not generate VBUS change interrupts when N_VBUSEN is used to drive VBUS for the OTG port on the board. This was not noticed until recently, as most A23/A33 boards use a GPIO pin that does not support interrupts for OTG ID detection. This forces the driver to use polling. However the A33-OlinuXino uses a pin that does support interrupts, so the driver uses them. However the VBUS interrupt never fires, and the driver never gets to update the VBUS status. This results in musb timing out waiting for VBUS to rise. This was worked around for the AXP221 by resorting to polling changes in commit 91d96f06a7 ("phy-sun4i-usb: Add workaround for missing Vbus det interrupts on A31"). This patch adds the A23 and A33 to the list of SoCs that need the workaround. Fixes: fc1f45ed30 ("phy-sun4i-usb: Add support for the usb-phys on the sun8i-a33 SoC") Fixes: 123dfdbcfa ("phy-sun4i-usb: Add support for the usb-phys on the sun8i-a23 SoC") Cc: <stable@vger.kernel.org> # 4.3.x: 68dbc2ce77 phy-sun4i-usb: Use of_match_node to get model specific config data Cc: <stable@vger.kernel.org> # 4.3.x: 5cf700ac9d phy: phy-sun4i-usb: Fix optional gpios failing probe Cc: <stable@vger.kernel.org> # 4.3.x: 04e59a0211 phy-sun4i-usb: Fix irq free conditions to match request conditions Cc: <stable@vger.kernel.org> # 4.3.x: 91d96f06a7 phy-sun4i-usb: Add workaround for missing Vbus det interrupts on A31 Cc: <stable@vger.kernel.org> # 4.3.x Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>		2018-03-12 15:12:21 +05:30
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phy-sun4i-usb.c	phy: allwinner: sun4i-usb: poll vbus changes on A23/A33 when driving VBUS	2018-03-12 15:12:21 +05:30
phy-sun9i-usb.c