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ca05b38252
This patch adds a USB GPIO based reset for dwc3-xilinx driver. The PHY needs to be reset after the completion of phy initialization. As part of the reset, check for gpio-reset binding before toggling the pin. This feature is advantageous when the user toggle GPIO to trigger the ULPI-PHY reset. Delay of milliseconds is added in between low and high to meet the setup and hold time requirement of the reset. The reset-gpio error handling is added for error notification. Some GPIO controllers must be accessed using message-based buses, like I2C or SPI, to address this problem, updates GPIO access with sleep API. This reset is specific to the zynqMp. Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com> Link: https://lore.kernel.org/r/20220504075309.6244-3-piyush.mehta@xilinx.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| core.c | ||
| core.h | ||
| debug.h | ||
| debugfs.c | ||
| drd.c | ||
| dwc3-am62.c | ||
| dwc3-exynos.c | ||
| dwc3-haps.c | ||
| dwc3-imx8mp.c | ||
| dwc3-keystone.c | ||
| dwc3-meson-g12a.c | ||
| dwc3-of-simple.c | ||
| dwc3-omap.c | ||
| dwc3-pci.c | ||
| dwc3-qcom.c | ||
| dwc3-st.c | ||
| dwc3-xilinx.c | ||
| ep0.c | ||
| gadget.c | ||
| gadget.h | ||
| host.c | ||
| io.h | ||
| Kconfig | ||
| Makefile | ||
| trace.c | ||
| trace.h | ||
| ulpi.c | ||