5.15-stable review patch. If anyone has any objections, please let me know.
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From: Justin Chen justinpopo6@gmail.com
commit 700c44b508020a3ea29d297c677f8d4ab14b7e6a upstream.
The logic was incorrect when switching to slow clock. We want the slow clock if wake_enabled is set.
Fixes: ae532b2b7aa5 ("phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers") Signed-off-by: Justin Chen justinpopo6@gmail.com Acked-by: Florian Fainelli f.fainelli@gmail.com Link: https://lore.kernel.org/r/1665005418-15807-6-git-send-email-justinpopo6@gmai... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
--- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c +++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c @@ -337,13 +337,12 @@ static void usb_uninit_common_7216(struc
pr_debug("%s\n", __func__);
- if (!params->wake_enabled) { - USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); - + if (params->wake_enabled) { /* Switch to using slower clock during suspend to save power */ USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); - } else { usb_wake_enable_7216(params, true); + } else { + USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); } }