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| author |  Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
| 2023-08-25 00:19:40 +0300 |
|---|---|---|
| committer |  Vinod Koul <vkoul@kernel.org>
| 2023-09-21 15:53:58 +0200 |
| commit | 6e9402261e8c85ec386b473ce3738d6e9d3e5013 (patch) | |
| tree | d497b7899f652f0a3ae79a67bb34502d8120c12b /drivers/phy/qualcomm | |
| parent | phy: qcom-qmp-usb: rework reset handling (diff) | |
| download | linux-6e9402261e8c85ec386b473ce3738d6e9d3e5013.tar.gz linux-6e9402261e8c85ec386b473ce3738d6e9d3e5013.tar.bz2 linux-6e9402261e8c85ec386b473ce3738d6e9d3e5013.zip | |
phy: qcom-qmp-usb: make QPHY_PCS_MISC_CLAMP_ENABLE access conditional
The register QPHY_V[34]_PCS_MISC_CLAMP_ENABLE is present only on some
SoC families. Other platforms (qcm2290) can have PCS_MISC region, but do
not have this register. Add it to the register layout table and check
that it is defined before toggling CLAMP settings.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230824211952.1397699-5-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/qualcomm')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c index 8f43de20fb8c..411cf0ae148d 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c @@ -94,6 +94,7 @@ enum qphy_reg_layout { QPHY_PCS_AUTONOMOUS_MODE_CTRL, QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR, QPHY_PCS_POWER_DOWN_CONTROL, + QPHY_PCS_MISC_CLAMP_ENABLE, /* Keep last to ensure regs_layout arrays are properly initialized */ QPHY_LAYOUT_SIZE }; @@ -114,6 +115,16 @@ static const unsigned int qmp_v3_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = { [QPHY_PCS_AUTONOMOUS_MODE_CTRL] = QPHY_V3_PCS_AUTONOMOUS_MODE_CTRL, [QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = QPHY_V3_PCS_LFPS_RXTERM_IRQ_CLEAR, [QPHY_PCS_POWER_DOWN_CONTROL] = QPHY_V3_PCS_POWER_DOWN_CONTROL, + [QPHY_PCS_MISC_CLAMP_ENABLE] = QPHY_V3_PCS_MISC_CLAMP_ENABLE, +}; + +static const unsigned int qmp_v3_usb3phy_regs_layout_qcm2290[QPHY_LAYOUT_SIZE] = { + [QPHY_SW_RESET] = QPHY_V3_PCS_SW_RESET, + [QPHY_START_CTRL] = QPHY_V3_PCS_START_CONTROL, + [QPHY_PCS_STATUS] = QPHY_V3_PCS_PCS_STATUS, + [QPHY_PCS_AUTONOMOUS_MODE_CTRL] = QPHY_V3_PCS_AUTONOMOUS_MODE_CTRL, + [QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = QPHY_V3_PCS_LFPS_RXTERM_IRQ_CLEAR, + [QPHY_PCS_POWER_DOWN_CONTROL] = QPHY_V3_PCS_POWER_DOWN_CONTROL, }; static const unsigned int qmp_v4_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = { @@ -125,6 +136,7 @@ static const unsigned int qmp_v4_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = { /* In PCS_USB */ [QPHY_PCS_AUTONOMOUS_MODE_CTRL] = QPHY_V4_PCS_USB3_AUTONOMOUS_MODE_CTRL, [QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = QPHY_V4_PCS_USB3_LFPS_RXTERM_IRQ_CLEAR, + [QPHY_PCS_MISC_CLAMP_ENABLE] = QPHY_V4_PCS_MISC_CLAMP_ENABLE, }; static const unsigned int qmp_v5_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = { @@ -1523,7 +1535,7 @@ static const struct qmp_phy_cfg qcm2290_usb3phy_cfg = { .pcs_tbl_num = ARRAY_SIZE(qcm2290_usb3_pcs_tbl), .vreg_list = qmp_phy_vreg_l, .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), - .regs = qmp_v3_usb3phy_regs_layout, + .regs = qmp_v3_usb3phy_regs_layout_qcm2290, }; static void qmp_usb_configure_lane(void __iomem *base, @@ -1761,8 +1773,8 @@ static void qmp_usb_enable_autonomous_mode(struct qmp_usb *qmp) qphy_setbits(pcs_usb, cfg->regs[QPHY_PCS_AUTONOMOUS_MODE_CTRL], intr_mask); /* Enable i/o clamp_n for autonomous mode */ - if (pcs_misc) - qphy_clrbits(pcs_misc, QPHY_V3_PCS_MISC_CLAMP_ENABLE, CLAMP_EN); + if (pcs_misc && cfg->regs[QPHY_PCS_MISC_CLAMP_ENABLE]) + qphy_clrbits(pcs_misc, cfg->regs[QPHY_PCS_MISC_CLAMP_ENABLE], CLAMP_EN); } static void qmp_usb_disable_autonomous_mode(struct qmp_usb *qmp) @@ -1772,8 +1784,8 @@ static void qmp_usb_disable_autonomous_mode(struct qmp_usb *qmp) void __iomem *pcs_misc = qmp->pcs_misc; /* Disable i/o clamp_n on resume for normal mode */ - if (pcs_misc) - qphy_setbits(pcs_misc, QPHY_V3_PCS_MISC_CLAMP_ENABLE, CLAMP_EN); + if (pcs_misc && cfg->regs[QPHY_PCS_MISC_CLAMP_ENABLE]) + qphy_setbits(pcs_misc, cfg->regs[QPHY_PCS_MISC_CLAMP_ENABLE], CLAMP_EN); qphy_clrbits(pcs_usb, cfg->regs[QPHY_PCS_AUTONOMOUS_MODE_CTRL], ARCVR_DTCT_EN | ARCVR_DTCT_EVENT_SEL | ALFPS_DTCT_EN); |