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phy: tegra: xusb: Decouple CYA_TRK_CODE_UPDATE_ON_IDLE from trk_hw_mode

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commit 24c63c590adca310e0df95c77cf7aa5552bc3fc5 upstream.

The logic that drives the pad calibration values resides in the
controller reset domain and so the calibration values are only being
captured when the controller is out of reset. However, by clearing the
CYA_TRK_CODE_UPDATE_ON_IDLE bit, the calibration values can be set
while the controller is in reset.

The CYA_TRK_CODE_UPDATE_ON_IDLE bit was previously cleared based on the
trk_hw_mode flag, but this dependency is not necessary. Instead,
introduce a new flag, trk_update_on_idle, to independently control this
bit.

Fixes: d8163a32ca ("phy: tegra: xusb: Add Tegra234 support")
Cc: stable@vger.kernel.org
Signed-off-by: Wayne Chang <waynec@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20250519090929.3132456-2-waynec@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wayne Chang
2025-05-19 17:09:28 +08:00
committed by Greg Kroah-Hartman
parent 5367cdeb75
commit 491175c139
2 changed files with 9 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/phy/tegra/xusb-tegra186.c
View File

@@ -648,14 +648,15 @@ static void tegra186_utmi_bias_pad_power_on(struct tegra_xusb_padctl *padctl)
udelay(100);
}
if (padctl->soc->trk_hw_mode) {
value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL2);
value |= USB2_TRK_HW_MODE;
value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL2);
if (padctl->soc->trk_update_on_idle)
value &= ~CYA_TRK_CODE_UPDATE_ON_IDLE;
padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL2);
} else {
if (padctl->soc->trk_hw_mode)
value |= USB2_TRK_HW_MODE;
padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL2);
if (!padctl->soc->trk_hw_mode)
clk_disable_unprepare(priv->usb2_trk_clk);
}
}
static void tegra186_utmi_bias_pad_power_off(struct tegra_xusb_padctl *padctl)
@@ -1726,6 +1727,7 @@ const struct tegra_xusb_padctl_soc tegra234_xusb_padctl_soc = {
.supports_gen2 = true,
.poll_trk_completed = true,
.trk_hw_mode = true,
.trk_update_on_idle = true,
.supports_lp_cfg_en = true,
};
EXPORT_SYMBOL_GPL(tegra234_xusb_padctl_soc);

1
drivers/phy/tegra/xusb.h
View File

@@ -434,6 +434,7 @@ struct tegra_xusb_padctl_soc {
bool need_fake_usb3_port;
bool poll_trk_completed;
bool trk_hw_mode;
bool trk_update_on_idle;
bool supports_lp_cfg_en;
};