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authorAl Cooper <al.cooper@broadcom.com>2017-12-27 14:28:50 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-21 12:05:48 +0100
commitc3306c7f8f97184bcccea7bd1a3a58419b848669 (patch)
treea0462ec2cbe18efd931f70f7bff4d7f8510c7857
parent5fb7cf9b1ca0fa06cc63a514bf639529fbd95d49 (diff)
phy: phy-brcm-usb-init: Power down USB 3.0 PHY when XHCI disabled
commit cd6f769fdea7ff7d77a6cc97658c60ca0b836d0e upstream. Set PHY3_IDDQ_OVERRIDE in the xhci uninit routine. This will save additional power when the XHCI driver is not enabled. Fixes: 49859e55e364 ("phy: usb: phy-brcm-usb: Add Broadcom STB USB phy driver") Signed-off-by: Al Cooper <alcooperx@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c b/drivers/phy/broadcom/phy-brcm-usb-init.c
index 4890cade650e..1b7febc43da9 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.c
@@ -73,6 +73,7 @@
#define USB_CTRL_USB30_CTL1_USB3_IPP_MASK 0x20000000 /* option */
#define USB_CTRL_USB30_PCTL 0x70
#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK 0x00000002
+#define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK 0x00008000
#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK 0x00020000
#define USB_CTRL_USB_DEVICE_CTL1 0x90
#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 /* option */
@@ -999,6 +1000,7 @@ void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params)
void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params)
{
brcmusb_xhci_soft_reset(params, 1);
+ USB_CTRL_SET(params->ctrl_regs, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
}
void brcm_usb_set_family_map(struct brcm_usb_init_params *params)