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authorJustin Chen <justinpopo6@gmail.com>2022-10-06 00:30:18 +0300
committerVinod Koul <vkoul@kernel.org>2022-11-07 07:50:25 +0300
commit8484199c09347bdd5d81ee8a2bc530850f900797 (patch)
treec4c6ccae3134f18d8ca04d510f65bdcd27c5adc0 /drivers/phy
parent700c44b508020a3ea29d297c677f8d4ab14b7e6a (diff)
downloadlinux-8484199c09347bdd5d81ee8a2bc530850f900797.tar.xz
phy: usb: Fix clock imbalance for suspend/resume
We should be disabling clocks when wake from USB is not needed. Since this wasn't done, we had a clock imbalance since clocks were always being enabled on resume. Fixes: ae532b2b7aa5 ("phy: usb: Add "wake on" functionality for newer Synopsis XHCI controllers") Fixes: b0c0b66c0b43 ("phy: usb: Add support for wake and USB low power mode for 7211 S2/S5") Signed-off-by: Justin Chen <justinpopo6@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/1665005418-15807-7-git-send-email-justinpopo6@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c2
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.h1
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb.c8
3 files changed, 5 insertions, 6 deletions
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
index f78cff24eec8..76cf4280d7ed 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
@@ -430,7 +430,6 @@ void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params)
params->family_name = "7216";
params->ops = &bcm7216_ops;
- params->suspend_with_clocks = true;
}
void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
@@ -440,5 +439,4 @@ void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
params->family_name = "7211";
params->ops = &bcm7211b0_ops;
- params->suspend_with_clocks = true;
}
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.h b/drivers/phy/broadcom/phy-brcm-usb-init.h
index bedf2b8e2f19..f9fbf8fb80e5 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.h
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.h
@@ -62,7 +62,6 @@ struct brcm_usb_init_params {
const struct brcm_usb_init_ops *ops;
struct regmap *syscon_piarbctl;
bool wake_enabled;
- bool suspend_with_clocks;
};
void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index d97fa58cd63a..aafba4a04701 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -602,7 +602,7 @@ static int brcm_usb_phy_suspend(struct device *dev)
* and newer XHCI->2.0-clks/3.0-clks.
*/
- if (!priv->ini.suspend_with_clocks) {
+ if (!priv->ini.wake_enabled) {
if (priv->phys[BRCM_USB_PHY_3_0].inited)
clk_disable_unprepare(priv->usb_30_clk);
if (priv->phys[BRCM_USB_PHY_2_0].inited ||
@@ -619,8 +619,10 @@ static int brcm_usb_phy_resume(struct device *dev)
{
struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
- clk_prepare_enable(priv->usb_20_clk);
- clk_prepare_enable(priv->usb_30_clk);
+ if (!priv->ini.wake_enabled) {
+ clk_prepare_enable(priv->usb_20_clk);
+ clk_prepare_enable(priv->usb_30_clk);
+ }
brcm_usb_init_ipp(&priv->ini);
/*