[PATCH 2/2] USB: host: ehci-atmel: Add support for HSIC phy
flat view
STALE1867d
LANDED
From: cristian.birsan@microchip.com
Date: 2021-09-10 16:39:15
Also in:
linux-arm-kernel, lkml
Subsystem:
the rest, usb ehci driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
Landed in mainline as 6854ccc4688b on 2021-09-14.
From: Cristian Birsan <cristian.birsan@microchip.com> Add support for USB Host High Speed Port HSIC phy. Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com> --- drivers/usb/host/ehci-atmel.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index e893467d659c..05d41fd65f25 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c@@ -18,6 +18,8 @@ #include <linux/platform_device.h> #include <linux/usb.h> #include <linux/usb/hcd.h> +#include <linux/usb/phy.h> +#include <linux/usb/of.h> #include "ehci.h"
@@ -25,6 +27,9 @@ static const char hcd_name[] = "ehci-atmel"; +#define EHCI_INSNREG(index) ((index) * 4 + 0x90) +#define EHCI_INSNREG08_HSIC_EN BIT(2) + /* interface and function clocks */ #define hcd_to_atmel_ehci_priv(h) \ ((struct atmel_ehci_priv *)hcd_to_ehci(h)->priv)
@@ -154,6 +159,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) goto fail_add_hcd; device_wakeup_enable(hcd->self.controller); + if (of_usb_get_phy_mode(pdev->dev.of_node) == USBPHY_INTERFACE_MODE_HSIC) + writel(EHCI_INSNREG08_HSIC_EN, hcd->regs + EHCI_INSNREG(8)); + return retval; fail_add_hcd:
--
2.25.1