diff options
| author | Svyatoslav Ryhel <clamor95@gmail.com> | 2026-02-02 10:05:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-05 17:16:24 +0100 |
| commit | 8dc7ab65bd15e3c774f60ca073158bcb9a26ee5b (patch) | |
| tree | 0de6693add33ffc112691a8f43e60896ce32d176 | |
| parent | a7abf50d3bbd8b8e79259e47a2a76953ccd903e3 (diff) | |
usb: phy: tegra: parametrize HSIC PTS value
The parallel transceiver select used in HSIC mode differs on Tegra20,
where it uses the UTMI value (0), whereas Tegra30+ uses a dedicated HSIC
value. Reflect this in the SoC config.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Link: https://patch.msgid.link/20260202080526.23487-4-clamor95@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/phy/phy-tegra-usb.c | 7 | ||||
| -rw-r--r-- | include/linux/usb/tegra_usb_phy.h | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index 6173b240c3ea..812d99443180 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -957,10 +957,7 @@ static int uhsic_phy_power_on(struct tegra_usb_phy *phy) writel_relaxed(val, base + USB_USBMODE); } - if (phy->soc_config->has_hostpc) - set_pts(phy, TEGRA_USB_HOSTPC1_DEVLC_PTS_HSIC); - else - set_pts(phy, 0); + set_pts(phy, phy->soc_config->uhsic_pts_value); val = readl_relaxed(base + USB_TXFILLTUNING); if ((val & USB_FIFO_TXFILL_MASK) != USB_FIFO_TXFILL_THRES(0x10)) { @@ -1474,6 +1471,7 @@ static const struct tegra_phy_soc_config tegra20_soc_config = { .requires_pmc_ao_power_up = false, .uhsic_registers_offset = 0, .uhsic_tx_rtune = 0, /* 40 ohm */ + .uhsic_pts_value = 0, /* UTMI */ }; static const struct tegra_phy_soc_config tegra30_soc_config = { @@ -1484,6 +1482,7 @@ static const struct tegra_phy_soc_config tegra30_soc_config = { .requires_pmc_ao_power_up = true, .uhsic_registers_offset = 0x400, .uhsic_tx_rtune = 8, /* 50 ohm */ + .uhsic_pts_value = TEGRA_USB_HOSTPC1_DEVLC_PTS_HSIC, }; static const struct of_device_id tegra_usb_phy_id_table[] = { diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h index 91420df25627..7209b7731c29 100644 --- a/include/linux/usb/tegra_usb_phy.h +++ b/include/linux/usb/tegra_usb_phy.h @@ -26,6 +26,7 @@ struct gpio_desc; * uhsic_registers_offset: for Tegra30+ where HSIC registers were offset * comparing to Tegra20 by 0x400, since Tegra20 has no UTMIP on PHY2 * uhsic_tx_rtune: fine tuned 50 Ohm termination resistor for NMOS/PMOS driver + * uhsic_pts_value: parallel transceiver select enumeration value */ struct tegra_phy_soc_config { @@ -36,6 +37,7 @@ struct tegra_phy_soc_config { bool requires_pmc_ao_power_up; u32 uhsic_registers_offset; u32 uhsic_tx_rtune; + u32 uhsic_pts_value; }; struct tegra_utmip_config { |