[PATCH v3 09/11] phy: qcom-qmp-usb: clean up power-down handling

From: Johan Hovold
Date: Mon Oct 17 2022 - 02:51:24 EST


Always define the POWER_DOWN_CONTROL register instead of falling back to
the v2 (and v3) offset during power on and power off.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
index 965e486ab87d..b0b13fb6cb59 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c
@@ -126,6 +126,7 @@ static const unsigned int usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_PCS_AUTONOMOUS_MODE_CTRL] = 0x0d4,
[QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = 0x0d8,
[QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x178,
+ [QPHY_PCS_POWER_DOWN_CONTROL] = 0x04,
};

static const unsigned int qmp_v3_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
@@ -135,6 +136,7 @@ static const unsigned int qmp_v3_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
[QPHY_PCS_AUTONOMOUS_MODE_CTRL] = 0x0d8,
[QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR] = 0x0dc,
[QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
+ [QPHY_PCS_POWER_DOWN_CONTROL] = 0x04,
};

static const unsigned int qmp_v4_usb3phy_regs_layout[QPHY_LAYOUT_SIZE] = {
@@ -2164,13 +2166,8 @@ static int qmp_usb_init(struct phy *phy)
qphy_clrbits(dp_com, QPHY_V3_DP_COM_SW_RESET, SW_RESET);
}

- if (cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL])
- qphy_setbits(pcs,
- cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
- cfg->pwrdn_ctrl);
- else
- qphy_setbits(pcs, QPHY_V2_PCS_POWER_DOWN_CONTROL,
- cfg->pwrdn_ctrl);
+ qphy_setbits(pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
+ cfg->pwrdn_ctrl);

return 0;

@@ -2277,13 +2274,8 @@ static int qmp_usb_power_off(struct phy *phy)
qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);

/* Put PHY into POWER DOWN state: active low */
- if (cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL]) {
- qphy_clrbits(qphy->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
- cfg->pwrdn_ctrl);
- } else {
- qphy_clrbits(qphy->pcs, QPHY_V2_PCS_POWER_DOWN_CONTROL,
- cfg->pwrdn_ctrl);
- }
+ qphy_clrbits(qphy->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
+ cfg->pwrdn_ctrl);

return 0;
}
--
2.37.3