In addition to the PCIe and SATA PHYs, the XUSB pad controller also
supports 3 UTMI, 2 HSIC, and 2 USB3 PHYs. Each USB3 PHY uses a single
PCIe or SATA lane and is mapped to one of the three UTMI ports.
Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-tegra-xusb.c | 1106 +++++++++++++++++++++++++++++++++-
1 file changed, 1089 insertions(+), 17 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-tegra-xusb.c b/drivers/pinctrl/pinctrl-tegra-xusb.c
index 2405646..67056ab 100644
--- a/drivers/pinctrl/pinctrl-tegra-xusb.c
+++ b/drivers/pinctrl/pinctrl-tegra-xusb.c
@@ -14,22 +14,55 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/notifier.h>
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include <linux/reset.h>
+#include <linux/tegra-soc.h>
+#include <linux/tegra-xusb-mbox.h>
#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
#include "core.h"
#include "pinctrl-utils.h"
+#define TEGRA_XUSB_PADCTL_USB3_PORTS 2
+#define TEGRA_XUSB_PADCTL_UTMI_PORTS 3
+#define TEGRA_XUSB_PADCTL_HSIC_PORTS 2
+
+#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? 15 : 0)
+#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f
+#define FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT 13
+#define FUSE_SKU_CALIB_HS_IREF_CAP_MASK 0x3
+#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT 11
+#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK 0x3
+#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7
+#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf
+
+#define XUSB_PADCTL_USB2_PORT_CAP 0x008
+#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(x) ((x) * 4)
+#define XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK 0x3
+#define XUSB_PADCTL_USB2_PORT_CAP_DISABLED 0x0
+#define XUSB_PADCTL_USB2_PORT_CAP_HOST 0x1
+#define XUSB_PADCTL_USB2_PORT_CAP_DEVICE 0x2
+#define XUSB_PADCTL_USB2_PORT_CAP_OTG 0x3
+
+#define XUSB_PADCTL_SS_PORT_MAP 0x014
+#define XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(x) ((x) * 4)
+#define XUSB_PADCTL_SS_PORT_MAP_PORT_MASK 0x7
+
#define XUSB_PADCTL_ELPG_PROGRAM 0x01c
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26)
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25)
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24)
+#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(x) (1 << (18 + (x) * 4))
+#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(x) \
+ (1 << (17 + (x) * 4))
+#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(x) (1 << (16 + (x) * 4))
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19)
@@ -41,6 +74,104 @@
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4)
+#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(x) (0x058 + (x) * 4)
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT 24
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK 0xff
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT 16
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK 0x3f
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT 8
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK 0x3f
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT 8
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK 0xffff
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT 4
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK 0x7
+
+#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(x) (0x068 + (x) * 4)
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT 24
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK 0x1f
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT 16
+#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK 0x7f
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(x) ((x) < 2 ? 0x078 + (x) * 4 : \
+ 0x0f8 + (x) * 4)
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT 28
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK 0x3
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(x) ((x) < 2 ? 0x090 + (x) * 4 : \
+ 0x11c + (x) * 4)
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN (1 << 8)
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(x) ((x) < 2 ? 0x098 + (x) * 4 : \
+ 0x128 + (x) * 4)
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT 24
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK 0x3f
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK 0x1f
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK 0x7f
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT 16
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK 0xff
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z 0x21
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP 0x32
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP 0x33
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z 0x48
+#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z 0xa1
+
+#define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x0a0 + (x) * 4)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 21)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 20)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 19)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT 14
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK 0x3
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT 6
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK 0x3f
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f
+
+#define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x0ac + (x) * 4)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT 9
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK 0x3
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0x7
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP (1 << 1)
+#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP (1 << 0)
+
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0b8
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 12)
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 2
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0
+#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x3
+
+#define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x0c0 + (x) * 4)
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT 12
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK 0x7
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT 8
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK 0x7
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT 4
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK 0x7
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT 0
+#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK 0x7
+
+#define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x0c8 + (x) * 4)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE (1 << 10)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA (1 << 9)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE (1 << 8)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA (1 << 7)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI (1 << 5)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX (1 << 4)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX (1 << 3)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX (1 << 2)
+#define XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN (1 << 0)
+
+#define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x0d0 + (x) * 4)
+#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 4
+#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0x7
+#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0
+#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0x7
+
+#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x0e0
+#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK 0x1f
+
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24)
@@ -52,6 +183,12 @@
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1)
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0)
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 0x14c
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 0x158
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 0x15c
+
struct tegra_xusb_padctl_function {
const char *name;
const char * const *groups;
@@ -72,6 +209,16 @@ struct tegra_xusb_padctl_soc {
const struct tegra_xusb_padctl_lane *lanes;
unsigned int num_lanes;
+
+ u32 rx_wander;
+ u32 rx_eq;
+ u32 cdr_cntl;
+ u32 dfe_cntl;
+ u32 hs_slew;
+ u32 ls_rslew[TEGRA_XUSB_PADCTL_UTMI_PORTS];
+ u32 hs_discon_level;
+ u32 spare_in;
+ int hsic_port_offset;
};
struct tegra_xusb_padctl_lane {
@@ -86,6 +233,22 @@ struct tegra_xusb_padctl_lane {
unsigned int num_funcs;
};
+struct tegra_xusb_fuse_calibration {
+ u32 hs_curr_level[TEGRA_XUSB_PADCTL_UTMI_PORTS];
+ u32 hs_iref_cap;
+ u32 hs_term_range_adj;
+ u32 hs_squelch_level;
+};
+
+struct tegra_xusb_usb3_port {
+ unsigned int lane;
+ bool context_saved;
+ u32 tap1_val;
+ u32 amp_val;
+ u32 ctle_z_val;
+ u32 ctle_g_val;
+};
+
struct tegra_xusb_padctl {
struct device *dev;
void __iomem *regs;
@@ -93,13 +256,22 @@ struct tegra_xusb_padctl {
struct reset_control *rst;
const struct tegra_xusb_padctl_soc *soc;
+ struct tegra_xusb_fuse_calibration calib;
struct pinctrl_dev *pinctrl;
struct pinctrl_desc desc;
struct phy_provider *provider;
- struct phy *phys[2];
+ struct phy *phys[9];
unsigned int enable;
+
+ struct tegra_xusb_mbox *mbox;
+ struct notifier_block mbox_nb;
+
+ struct tegra_xusb_usb3_port usb3_ports[TEGRA_XUSB_PADCTL_USB3_PORTS];
+ unsigned int utmi_enable;
+ struct regulator *vbus[TEGRA_XUSB_PADCTL_UTMI_PORTS];
+ struct regulator *vddio_hsic;
};
static inline void padctl_writel(struct tegra_xusb_padctl *padctl, u32 value,
@@ -114,6 +286,42 @@ static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
return readl(padctl->regs + offset);
}
+#define PIN_OTG_0 0
+#define PIN_OTG_1 1
+#define PIN_OTG_2 2
+#define PIN_ULPI_0 3
+#define PIN_HSIC_0 4
+#define PIN_HSIC_1 5
+#define PIN_PCIE_0 6
+#define PIN_PCIE_1 7
+#define PIN_PCIE_2 8
+#define PIN_PCIE_3 9
+#define PIN_PCIE_4 10
+#define PIN_SATA_0 11
+
+static inline bool is_hsic_lane(unsigned int lane)
+{
+ return lane >= PIN_HSIC_0 && lane <= PIN_HSIC_1;
+}
+
+static inline bool is_pcie_sata_lane(unsigned int lane)
+{
+ return lane >= PIN_PCIE_0 && lane <= PIN_SATA_0;
+}
+
+static int lane_to_usb3_port(struct tegra_xusb_padctl *padctl,
+ unsigned int lane)
+{
+ int i;
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) {
+ if (padctl->usb3_ports[i].lane == lane)
+ return i;
+ }
+
+ return -1;
+}
+
static int tegra_xusb_padctl_get_groups_count(struct pinctrl_dev *pinctrl)
{
struct tegra_xusb_padctl *padctl = pinctrl_dev_get_drvdata(pinctrl);
@@ -131,6 +339,16 @@ static const char *tegra_xusb_padctl_get_group_name(struct pinctrl_dev *pinctrl,
enum tegra_xusb_padctl_param {
TEGRA_XUSB_PADCTL_IDDQ,
+ TEGRA_XUSB_PADCTL_USB3_PORT_NUM,
+ TEGRA_XUSB_PADCTL_USB2_PORT_NUM,
+ TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM,
+ TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM,
+ TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM,
+ TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN,
+ TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP,
+ TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN,
+ TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP,
+ TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM,
};
static const struct tegra_xusb_padctl_property {
@@ -138,6 +356,16 @@ static const struct tegra_xusb_padctl_property {
enum tegra_xusb_padctl_param param;
} properties[] = {
{ "nvidia,iddq", TEGRA_XUSB_PADCTL_IDDQ },
+ { "nvidia,usb3-port-num", TEGRA_XUSB_PADCTL_USB3_PORT_NUM },
+ { "nvidia,usb2-port-num", TEGRA_XUSB_PADCTL_USB2_PORT_NUM },
+ { "nvidia,hsic-strobe-trim", TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM },
+ { "nvidia,hsic-rx-strobe-trim", TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM },
+ { "nvidia,hsic-rx-data-trim", TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM },
+ { "nvidia,hsic-tx-rtune-n", TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN },
+ { "nvidia,hsic-tx-rtune-p", TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP },
+ { "nvidia,hsic-tx-rslew-n", TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN },
+ { "nvidia,hsic-tx-rslew-p", TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP },
+ { "nvidia,hsic-auto-term", TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM },
};
#define TEGRA_XUSB_PADCTL_PACK(param, value) ((param) << 16 | (value))
@@ -321,6 +549,7 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl,
struct tegra_xusb_padctl *padctl = pinctrl_dev_get_drvdata(pinctrl);
const struct tegra_xusb_padctl_lane *lane;
enum tegra_xusb_padctl_param param;
+ int port;
u32 value;
param = TEGRA_XUSB_PADCTL_UNPACK_PARAM(*config);
@@ -330,7 +559,125 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl,
case TEGRA_XUSB_PADCTL_IDDQ:
value = padctl_readl(padctl, lane->offset);
value = (value >> lane->iddq) & 0x1;
- *config = TEGRA_XUSB_PADCTL_PACK(param, value);
+ break;
+
+ case TEGRA_XUSB_PADCTL_USB3_PORT_NUM:
+ value = lane_to_usb3_port(padctl, group);
+ if (value < 0) {
+ dev_err(padctl->dev,
+ "Lane %d not mapped to USB3 port\n", group);
+ return -EINVAL;
+ }
+ break;
+
+ case TEGRA_XUSB_PADCTL_USB2_PORT_NUM:
+ port = lane_to_usb3_port(padctl, group);
+ if (port < 0) {
+ dev_err(padctl->dev,
+ "Lane %d not mapped to USB2 port\n", group);
+ return -EINVAL;
+ }
+
+ value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP) >>
+ XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port);
+ value &= XUSB_PADCTL_SS_PORT_MAP_PORT_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ value = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL);
+ value &= XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(port)) >>
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK;
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n", group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ if (value & XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN)
+ value = 1;
+ else
+ value = 0;
break;
default:
@@ -339,6 +686,7 @@ static int tegra_xusb_padctl_pinconf_group_get(struct pinctrl_dev *pinctrl,
return -ENOTSUPP;
}
+ *config = TEGRA_XUSB_PADCTL_PACK(param, value);
return 0;
}
@@ -351,7 +699,7 @@ static int tegra_xusb_padctl_pinconf_group_set(struct pinctrl_dev *pinctrl,
const struct tegra_xusb_padctl_lane *lane;
enum tegra_xusb_padctl_param param;
unsigned long value;
- unsigned int i;
+ unsigned int i, port;
u32 regval;
lane = &padctl->soc->lanes[group];
@@ -372,6 +720,193 @@ static int tegra_xusb_padctl_pinconf_group_set(struct pinctrl_dev *pinctrl,
padctl_writel(padctl, regval, lane->offset);
break;
+ case TEGRA_XUSB_PADCTL_USB3_PORT_NUM:
+ if (value >= TEGRA_XUSB_PADCTL_USB3_PORTS) {
+ dev_err(padctl->dev, "Invalid USB3 port: %lu\n",
+ value);
+ return -EINVAL;
+ }
+ if (!is_pcie_sata_lane(group)) {
+ dev_err(padctl->dev,
+ "USB3 port not applicable for pin %d\n",
+ group);
+ return -EINVAL;
+ }
+ padctl->usb3_ports[value].lane = group;
+ break;
+
+ case TEGRA_XUSB_PADCTL_USB2_PORT_NUM:
+ if (value >= TEGRA_XUSB_PADCTL_UTMI_PORTS) {
+ dev_err(padctl->dev, "Invalid USB2 port: %lu\n",
+ value);
+ return -EINVAL;
+ }
+ if (!is_pcie_sata_lane(group)) {
+ dev_err(padctl->dev,
+ "USB2 port not applicable for pin %d\n",
+ group);
+ return -EINVAL;
+ }
+ port = lane_to_usb3_port(padctl, group);
+ if (port < 0) {
+ dev_err(padctl->dev,
+ "Pin %d not mapped to USB3 port\n",
+ group);
+ break;
+ }
+
+ regval = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
+ regval &= ~(XUSB_PADCTL_SS_PORT_MAP_PORT_MASK <<
+ XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port));
+ regval |= value <<
+ XUSB_PADCTL_SS_PORT_MAP_PORTX_SHIFT(port);
+ padctl_writel(padctl, regval, XUSB_PADCTL_SS_PORT_MAP);
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_STROBE_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ value &= XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK;
+ padctl_writel(padctl, value,
+ XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL);
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_RX_STROBE_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL2(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL2(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_RX_DATA_TRIM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL2(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL2(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEN:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RTUNEP:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWN:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_TX_RSLEWP:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ value &= XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ regval &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT);
+ regval |= value <<
+ XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL0(port));
+ break;
+
+ case TEGRA_XUSB_PADCTL_HSIC_AUTO_TERM:
+ if (!is_hsic_lane(group)) {
+ dev_err(padctl->dev, "Pin %d not an HSIC\n",
+ group);
+ return -EINVAL;
+ }
+
+ port = group - PIN_HSIC_0;
+ regval = padctl_readl(padctl,
+ XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ if (!value)
+ regval &= ~XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
+ else
+ regval |= XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
+ padctl_writel(padctl, regval,
+ XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ break;
+
default:
dev_err(padctl->dev,
"invalid configuration parameter: %04x\n",
@@ -595,6 +1130,459 @@ static const struct phy_ops sata_phy_ops = {
.owner = THIS_MODULE,
};
+static int usb3_phy_to_port(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int i;
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) {
+ if (phy == padctl->phys[TEGRA_XUSB_PADCTL_USB3_P0 + i])
+ break;
+ }
+ BUG_ON(i == TEGRA_XUSB_PADCTL_USB3_PORTS);
+
+ return i;
+}
+
+static int usb3_phy_power_on(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = usb3_phy_to_port(phy);
+ int lane = padctl->usb3_ports[port].lane;
+ u32 value, offset;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port));
+ value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT));
+ value |= (padctl->soc->rx_wander <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
+ (padctl->soc->cdr_cntl <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT) |
+ (padctl->soc->rx_eq <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT);
+ if (padctl->usb3_ports[port].context_saved) {
+ value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
+ value |= (padctl->usb3_ports[port].ctle_g_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
+ (padctl->usb3_ports[port].ctle_z_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
+ }
+ padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port));
+
+ value = padctl->soc->dfe_cntl;
+ if (padctl->usb3_ports[port].context_saved) {
+ value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
+ value |= (padctl->usb3_ports[port].tap1_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
+ (padctl->usb3_ports[port].amp_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
+ }
+ padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port));
+
+ offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 :
+ XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(lane - PIN_PCIE_0);
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT);
+ value |= padctl->soc->spare_in <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 :
+ XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(lane - PIN_PCIE_0);
+ value = padctl_readl(padctl, offset);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ usleep_range(100, 200);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ return 0;
+}
+
+static int usb3_phy_power_off(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = usb3_phy_to_port(phy);
+ u32 value;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ usleep_range(100, 200);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ usleep_range(250, 350);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+ value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+ return 0;
+}
+
+static void usb3_phy_save_context(struct tegra_xusb_padctl *padctl, int port)
+{
+ int lane = padctl->usb3_ports[port].lane;
+ u32 value, offset;
+
+ padctl->usb3_ports[port].context_saved = true;
+
+ offset = (lane == PIN_SATA_0) ? XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 :
+ XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(lane - PIN_PCIE_0);
+
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, offset) >>
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
+ padctl->usb3_ports[port].tap1_val = value &
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK;
+
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, offset) >>
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
+ padctl->usb3_ports[port].amp_val = value &
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port));
+ value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
+ value |= (padctl->usb3_ports[port].tap1_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
+ (padctl->usb3_ports[port].amp_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
+ padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(port));
+
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, offset) >>
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
+ padctl->usb3_ports[port].ctle_g_val = value &
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
+
+ value = padctl_readl(padctl, offset);
+ value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
+ value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z <<
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
+ padctl_writel(padctl, value, offset);
+
+ value = padctl_readl(padctl, offset) >>
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
+ padctl->usb3_ports[port].ctle_z_val = value &
+ XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port));
+ value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
+ (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
+ value |= (padctl->usb3_ports[port].ctle_g_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
+ (padctl->usb3_ports[port].ctle_z_val <<
+ XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
+ padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(port));
+}
+
+static const struct phy_ops usb3_phy_ops = {
+ .init = tegra_xusb_phy_init,
+ .exit = tegra_xusb_phy_exit,
+ .power_on = usb3_phy_power_on,
+ .power_off = usb3_phy_power_off,
+ .owner = THIS_MODULE,
+};
+
+static int utmi_phy_to_port(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int i;
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) {
+ if (phy == padctl->phys[TEGRA_XUSB_PADCTL_UTMI_P0 + i])
+ break;
+ }
+ BUG_ON(i == TEGRA_XUSB_PADCTL_UTMI_PORTS);
+
+ return i;
+}
+
+static int utmi_phy_power_on(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = utmi_phy_to_port(phy);
+ int ret;
+ u32 value;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+ value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK <<
+ XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
+ (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK <<
+ XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT));
+ value |= (padctl->calib.hs_squelch_level <<
+ XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
+ (padctl->soc->hs_discon_level <<
+ XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT);
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP);
+ value &= ~(XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK <<
+ XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(port));
+ value |= XUSB_PADCTL_USB2_PORT_CAP_HOST <<
+ XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(port);
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(port));
+ value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) |
+ (XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT) |
+ (XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT) |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI);
+ value |= padctl->calib.hs_curr_level[port] <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT;
+ value |= padctl->soc->hs_slew <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT;
+ value |= padctl->soc->ls_rslew[port] <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT;
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(port));
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(port));
+ value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
+ (XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT) |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP |
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP);
+ value |= (padctl->calib.hs_term_range_adj <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
+ (padctl->calib.hs_iref_cap <<
+ XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT);
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(port));
+
+ ret = regulator_enable(padctl->vbus[port]);
+ if (ret)
+ return ret;
+
+ mutex_lock(&padctl->lock);
+
+ if (padctl->utmi_enable++ > 0)
+ goto out;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+ value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+
+out:
+ mutex_unlock(&padctl->lock);
+ return 0;
+}
+
+static int utmi_phy_power_off(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = utmi_phy_to_port(phy);
+ u32 value;
+
+ regulator_disable(padctl->vbus[port]);
+
+ mutex_lock(&padctl->lock);
+
+ if (WARN_ON(padctl->utmi_enable == 0))
+ goto out;
+
+ if (--padctl->utmi_enable > 0)
+ goto out;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+ value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
+ padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
+
+out:
+ mutex_unlock(&padctl->lock);
+ return 0;
+}
+
+static const struct phy_ops utmi_phy_ops = {
+ .init = tegra_xusb_phy_init,
+ .exit = tegra_xusb_phy_exit,
+ .power_on = utmi_phy_power_on,
+ .power_off = utmi_phy_power_off,
+ .owner = THIS_MODULE,
+};
+
+static int hsic_phy_to_port(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int i;
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) {
+ if (phy == padctl->phys[TEGRA_XUSB_PADCTL_HSIC_P0 + i])
+ break;
+ }
+ BUG_ON(i == TEGRA_XUSB_PADCTL_HSIC_PORTS);
+
+ return i;
+}
+
+static int hsic_phy_power_on(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = hsic_phy_to_port(phy);
+ int ret;
+ u32 value;
+
+ ret = regulator_enable(padctl->vddio_hsic);
+ if (ret)
+ return ret;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE |
+ XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX);
+ value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
+ XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
+ padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+
+ return 0;
+}
+
+static int hsic_phy_power_off(struct phy *phy)
+{
+ struct tegra_xusb_padctl *padctl = phy_get_drvdata(phy);
+ int port = hsic_phy_to_port(phy);
+ u32 value;
+
+ regulator_disable(padctl->vddio_hsic);
+
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ value |= XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
+ XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX;
+ padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+
+ return 0;
+}
+
+static void hsic_phy_set_idle(struct tegra_xusb_padctl *padctl, int port,
+ bool set)
+{
+ u32 value;
+
+ value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+ if (set)
+ value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
+ XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
+ else
+ value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
+ XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE);
+ padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(port));
+}
+
+static const struct phy_ops hsic_phy_ops = {
+ .init = tegra_xusb_phy_init,
+ .exit = tegra_xusb_phy_exit,
+ .power_on = hsic_phy_power_on,
+ .power_off = hsic_phy_power_off,
+ .owner = THIS_MODULE,
+};
+
+static int tegra_xusb_phy_mbox_notifier(struct notifier_block *nb,
+ unsigned long event, void *p)
+{
+ struct tegra_xusb_padctl *padctl = container_of(nb,
+ struct tegra_xusb_padctl,
+ mbox_nb);
+ struct tegra_xusb_mbox_msg *msg = (struct tegra_xusb_mbox_msg *)p;
+ u32 ports;
+ int i;
+
+ switch (event) {
+ case MBOX_CMD_SAVE_DFE_CTLE_CTX:
+ msg->data_out = msg->data_in;
+ if (msg->data_in > TEGRA_XUSB_PADCTL_USB3_PORTS) {
+ msg->cmd_out = MBOX_CMD_NAK;
+ } else {
+ usb3_phy_save_context(padctl, msg->data_in);
+ msg->cmd_out = MBOX_CMD_ACK;
+ }
+ return NOTIFY_STOP;
+ case MBOX_CMD_START_HSIC_IDLE:
+ case MBOX_CMD_STOP_HSIC_IDLE:
+ ports = msg->data_in >> (padctl->soc->hsic_port_offset + 1);
+ msg->data_out = msg->data_in;
+ for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) {
+ if (!(ports & BIT(i)))
+ continue;
+ if (event == MBOX_CMD_START_HSIC_IDLE)
+ hsic_phy_set_idle(padctl, i, true);
+ else
+ hsic_phy_set_idle(padctl, i, false);
+ }
+ msg->cmd_out = MBOX_CMD_ACK;
+ return NOTIFY_STOP;
+ default:
+ return NOTIFY_DONE;
+ }
+}
+
static struct phy *tegra_xusb_padctl_xlate(struct device *dev,
struct of_phandle_args *args)
{
@@ -610,19 +1598,6 @@ static struct phy *tegra_xusb_padctl_xlate(struct device *dev,
return padctl->phys[index];
}
-#define PIN_OTG_0 0
-#define PIN_OTG_1 1
-#define PIN_OTG_2 2
-#define PIN_ULPI_0 3
-#define PIN_HSIC_0 4
-#define PIN_HSIC_1 5
-#define PIN_PCIE_0 6
-#define PIN_PCIE_1 7
-#define PIN_PCIE_2 8
-#define PIN_PCIE_3 9
-#define PIN_PCIE_4 10
-#define PIN_SATA_0 11
-
static const struct pinctrl_pin_desc tegra124_pins[] = {
PINCTRL_PIN(PIN_OTG_0, "otg-0"),
PINCTRL_PIN(PIN_OTG_1, "otg-1"),
@@ -780,6 +1755,15 @@ static const struct tegra_xusb_padctl_soc tegra124_soc = {
.functions = tegra124_functions,
.num_lanes = ARRAY_SIZE(tegra124_lanes),
.lanes = tegra124_lanes,
+ .rx_wander = 0xf,
+ .rx_eq = 0xf070,
+ .cdr_cntl = 0x24,
+ .dfe_cntl = 0x002008ee,
+ .hs_slew = 0xe,
+ .ls_rslew = {0x3, 0x0, 0x0},
+ .hs_discon_level = 0x5,
+ .spare_in = 0x1,
+ .hsic_port_offset = 6,
};
static const struct of_device_id tegra_xusb_padctl_of_match[] = {
@@ -788,13 +1772,40 @@ static const struct of_device_id tegra_xusb_padctl_of_match[] = {
};
MODULE_DEVICE_TABLE(of, tegra_xusb_padctl_of_match);
+static int tegra_xusb_read_fuse_calibration(struct tegra_xusb_padctl *padctl)
+{
+ int i, ret;
+ u32 value;
+
+ ret = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) {
+ padctl->calib.hs_curr_level[i] =
+ (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) &
+ FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK;
+ }
+ padctl->calib.hs_iref_cap =
+ (value >> FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT) &
+ FUSE_SKU_CALIB_HS_IREF_CAP_MASK;
+ padctl->calib.hs_term_range_adj =
+ (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) &
+ FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK;
+ padctl->calib.hs_squelch_level =
+ (value >> FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT) &
+ FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK;
+
+ return 0;
+}
+
static int tegra_xusb_padctl_probe(struct platform_device *pdev)
{
struct tegra_xusb_padctl *padctl;
const struct of_device_id *match;
struct resource *res;
struct phy *phy;
- int err;
+ int err, i;
padctl = devm_kzalloc(&pdev->dev, sizeof(*padctl), GFP_KERNEL);
if (!padctl)
@@ -812,6 +1823,10 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev)
if (IS_ERR(padctl->regs))
return PTR_ERR(padctl->regs);
+ err = tegra_xusb_read_fuse_calibration(padctl);
+ if (err < 0)
+ return err;
+
padctl->rst = devm_reset_control_get(&pdev->dev, NULL);
if (IS_ERR(padctl->rst))
return PTR_ERR(padctl->rst);
@@ -852,6 +1867,54 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev)
padctl->phys[TEGRA_XUSB_PADCTL_SATA] = phy;
phy_set_drvdata(phy, padctl);
+ for (i = 0; i < TEGRA_XUSB_PADCTL_USB3_PORTS; i++) {
+ phy = devm_phy_create(&pdev->dev, &usb3_phy_ops, NULL);
+ if (IS_ERR(phy)) {
+ err = PTR_ERR(phy);
+ goto unregister;
+ }
+
+ padctl->phys[TEGRA_XUSB_PADCTL_USB3_P0 + i] = phy;
+ phy_set_drvdata(phy, padctl);
+ }
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_UTMI_PORTS; i++) {
+ char reg_name[sizeof("vbus-otg-N")];
+
+ sprintf(reg_name, "vbus-otg-%d", i);
+ padctl->vbus[i] = devm_regulator_get(&pdev->dev, reg_name);
+ if (IS_ERR(padctl->vbus[i])) {
+ err = PTR_ERR(padctl->vbus[i]);
+ goto unregister;
+ }
+
+ phy = devm_phy_create(&pdev->dev, &utmi_phy_ops, NULL);
+ if (IS_ERR(phy)) {
+ err = PTR_ERR(phy);
+ goto unregister;
+ }
+
+ padctl->phys[TEGRA_XUSB_PADCTL_UTMI_P0 + i] = phy;
+ phy_set_drvdata(phy, padctl);
+ }
+
+ padctl->vddio_hsic = devm_regulator_get(&pdev->dev, "vddio-hsic");
+ if (IS_ERR(padctl->vddio_hsic)) {
+ err = PTR_ERR(padctl->vddio_hsic);
+ goto unregister;
+ }
+
+ for (i = 0; i < TEGRA_XUSB_PADCTL_HSIC_PORTS; i++) {
+ phy = devm_phy_create(&pdev->dev, &hsic_phy_ops, NULL);
+ if (IS_ERR(phy)) {
+ err = PTR_ERR(phy);
+ goto unregister;
+ }
+
+ padctl->phys[TEGRA_XUSB_PADCTL_HSIC_P0 + i] = phy;
+ phy_set_drvdata(phy, padctl);
+ }
+
padctl->provider = devm_of_phy_provider_register(&pdev->dev,
tegra_xusb_padctl_xlate);
if (err < 0) {
@@ -859,6 +1922,13 @@ static int tegra_xusb_padctl_probe(struct platform_device *pdev)
goto unregister;
}
+ padctl->mbox = tegra_xusb_mbox_lookup_by_phandle(pdev->dev.of_node,
+ "nvidia,xusb-mbox");
+ if (IS_ERR(padctl->mbox))
+ return PTR_ERR(padctl->mbox);
+ padctl->mbox_nb.notifier_call = tegra_xusb_phy_mbox_notifier;
+ tegra_xusb_mbox_register_notifier(padctl->mbox, &padctl->mbox_nb);
+
return 0;
unregister:
@@ -873,6 +1943,8 @@ static int tegra_xusb_padctl_remove(struct platform_device *pdev)
struct tegra_xusb_padctl *padctl = platform_get_drvdata(pdev);
int err;
+ tegra_xusb_mbox_unregister_notifier(padctl->mbox, &padctl->mbox_nb);
+
pinctrl_unregister(padctl->pinctrl);
err = reset_control_assert(padctl->rst);
--
2.0.0.526.g5318336
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