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>

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 6173b240c3ea6b5b5eda3bf1c13283c61ae80aba..812d9944318049eeb101fed21120dfa29e77aa35 100644 (file)
--- 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 91420df25627c72024dfdb376654931582dda3a2..7209b7731c29fcb8e99e47b44ada0083a799f471 100644 (file)
--- 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 {