diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-22 08:47:05 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-28 09:38:11 +0200 |
| commit | 5740ad5e144c8f469416c74dd670a44029434881 (patch) | |
| tree | c96f2bb0d54605f76c107d7dd936c5940a7c0b2e /drivers/usb | |
| parent | e84ed073b169b0f18b1679bf2800cd26e36b1cbe (diff) | |
| download | barebox-5740ad5e144c8f469416c74dd670a44029434881.tar.gz barebox-5740ad5e144c8f469416c74dd670a44029434881.tar.xz | |
usb: ehci: Handle clocks and phys
The generic ehci binding also describes clocks and a phy. Add support
for these properties to the driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.barebox.org/20210622064711.14058-1-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 8c4da9fd12..4dd4d1dddb 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -32,6 +32,8 @@ #include <usb/ehci.h> #include <linux/err.h> #include <linux/sizes.h> +#include <linux/clk.h> +#include <linux/phy/phy.h> #include "ehci.h" @@ -1413,6 +1415,9 @@ static int ehci_probe(struct device_d *dev) struct ehci_platform_data *pdata = dev->platform_data; struct device_node *dn = dev->device_node; struct ehci_host *ehci; + struct clk_bulk_data *clks; + int num_clocks, ret; + struct phy *usb2_generic_phy; if (pdata) data.flags = pdata->flags; @@ -1440,6 +1445,27 @@ static int ehci_probe(struct device_d *dev) else data.hcor = NULL; + usb2_generic_phy = phy_optional_get(dev, "usb"); + if (IS_ERR(usb2_generic_phy)) + return PTR_ERR(usb2_generic_phy); + + ret = phy_init(usb2_generic_phy); + if (ret) + return ret; + + ret = phy_power_on(usb2_generic_phy); + if (ret) + return ret; + + ret = clk_bulk_get_all(dev, &clks); + if (ret < 0) + return ret; + + num_clocks = ret; + ret = clk_bulk_enable(num_clocks, clks); + if (ret) + return ret; + ehci = ehci_register(dev, &data); if (IS_ERR(ehci)) return PTR_ERR(ehci); |