This is a note to let you know that I've just added the patch titled
phy: qcom-qmp-usb: clean up status polling
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
phy-qcom-qmp-usb-clean-up-status-polling.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c532ded55be4df17008a7d58bddc876e8acc6e45
Author: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Wed Oct 12 10:49:55 2022 +0200
phy: qcom-qmp-usb: clean up status polling
[ Upstream commit f5ef85adece529a6cd1e7563081c41038923a9ed ]
Clean up the PHY status polling by dropping the configuration mask which
is no longer needed since the QMP driver split.
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221012085002.24099-13-johan+linaro@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Stable-dep-of: 922adfd59efd ("phy: qcom-qmp-usb: correct registers layout for IPQ8074 USB3 PHY")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
index f8a300f0aec3..a551ef4b5777 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
@@ -1458,8 +1458,6 @@ struct qmp_phy_cfg {
unsigned int start_ctrl;
unsigned int pwrdn_ctrl;
- /* bit offset of PHYSTATUS in QPHY_PCS_STATUS register */
- unsigned int phy_status;
/* true, if PHY needs delay after POWER_DOWN */
bool has_pwrdn_delay;
@@ -1617,7 +1615,6 @@ static const struct qmp_phy_cfg ipq8074_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
};
static const struct qmp_phy_cfg msm8996_usb3phy_cfg = {
@@ -1641,7 +1638,6 @@ static const struct qmp_phy_cfg msm8996_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
};
static const struct qmp_phy_cfg qmp_v3_usb3phy_cfg = {
@@ -1665,7 +1661,6 @@ static const struct qmp_phy_cfg qmp_v3_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
.has_phy_dp_com_ctrl = true,
@@ -1692,7 +1687,6 @@ static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
.has_phy_dp_com_ctrl = true,
@@ -1719,7 +1713,6 @@ static const struct qmp_phy_cfg sc8280xp_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
};
static const struct qmp_phy_cfg qmp_v3_usb3_uniphy_cfg = {
@@ -1743,7 +1736,6 @@ static const struct qmp_phy_cfg qmp_v3_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -1769,7 +1761,6 @@ static const struct qmp_phy_cfg msm8998_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
};
static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
@@ -1796,7 +1787,6 @@ static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
.has_phy_dp_com_ctrl = true,
@@ -1826,7 +1816,6 @@ static const struct qmp_phy_cfg sm8150_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -1855,7 +1844,6 @@ static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
.has_phy_dp_com_ctrl = true,
@@ -1885,7 +1873,6 @@ static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -1914,7 +1901,6 @@ static const struct qmp_phy_cfg sdx55_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -1943,7 +1929,6 @@ static const struct qmp_phy_cfg sdx65_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -1972,7 +1957,6 @@ static const struct qmp_phy_cfg sm8350_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
.has_phy_dp_com_ctrl = true,
@@ -2002,7 +1986,6 @@ static const struct qmp_phy_cfg sm8350_usb3_uniphy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
.has_pwrdn_delay = true,
};
@@ -2028,7 +2011,6 @@ static const struct qmp_phy_cfg qcm2290_usb3phy_cfg = {
.start_ctrl = SERDES_START | PCS_START,
.pwrdn_ctrl = SW_PWRDN,
- .phy_status = PHYSTATUS,
};
static void qmp_usb_configure_lane(void __iomem *base,
@@ -2166,7 +2148,7 @@ static int qmp_usb_power_on(struct phy *phy)
void __iomem *rx = qphy->rx;
void __iomem *pcs = qphy->pcs;
void __iomem *status;
- unsigned int mask, val, ready;
+ unsigned int val;
int ret;
qmp_usb_serdes_init(qphy);
@@ -2205,10 +2187,7 @@ static int qmp_usb_power_on(struct phy *phy)
qphy_setbits(pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);
status = pcs + cfg->regs[QPHY_PCS_STATUS];
- mask = cfg->phy_status;
- ready = 0;
-
- ret = readl_poll_timeout(status, val, (val & mask) == ready, 10,
+ ret = readl_poll_timeout(status, val, !(val & PHYSTATUS), 10,
PHY_INIT_COMPLETE_TIMEOUT);
if (ret) {
dev_err(qmp->dev, "phy initialization timed-out\n");
