From: Hao Wu <wuhao...@google.com> SB Temperature Sensor Interface (SB-TSI) is an SMBus compatible interface that reports AMD SoC's Ttcl (normalized temperature), and resembles a typical 8-pin remote temperature sensor's I2C interface to BMC.
This patch implements a basic AMD SB-TSI sensor that is compatible with the open-source data sheet from AMD and Linux kernel driver. Reference: Linux kernel driver: https://lkml.org/lkml/2020/12/11/968 Register Map: https://developer.amd.com/wp-content/resources/56255_3_03.PDF (Chapter 6) Signed-off-by: Hao Wu <wuhao...@google.com> Reviewed-by: Doug Evans <d...@google.com> --- hw/sensor/Kconfig | 4 + hw/sensor/meson.build | 1 + hw/sensor/tmp_sbtsi.c | 393 +++++++++++++++++++++++++++++++++++ hw/sensor/trace-events | 5 + hw/sensor/trace.h | 1 + meson.build | 1 + tests/qtest/meson.build | 1 + tests/qtest/tmp_sbtsi-test.c | 180 ++++++++++++++++ 8 files changed, 586 insertions(+) create mode 100644 hw/sensor/tmp_sbtsi.c create mode 100644 hw/sensor/trace-events create mode 100644 hw/sensor/trace.h create mode 100644 tests/qtest/tmp_sbtsi-test.c diff --git a/hw/sensor/Kconfig b/hw/sensor/Kconfig index 9c8a049b06..27f6f79c84 100644 --- a/hw/sensor/Kconfig +++ b/hw/sensor/Kconfig @@ -21,3 +21,7 @@ config ADM1272 config MAX34451 bool depends on I2C + +config AMDSBTSI + bool + depends on I2C diff --git a/hw/sensor/meson.build b/hw/sensor/meson.build index 059c4ca935..f7b0e645eb 100644 --- a/hw/sensor/meson.build +++ b/hw/sensor/meson.build @@ -4,3 +4,4 @@ softmmu_ss.add(when: 'CONFIG_DPS310', if_true: files('dps310.c')) softmmu_ss.add(when: 'CONFIG_EMC141X', if_true: files('emc141x.c')) softmmu_ss.add(when: 'CONFIG_ADM1272', if_true: files('adm1272.c')) softmmu_ss.add(when: 'CONFIG_MAX34451', if_true: files('max34451.c')) +softmmu_ss.add(when: 'CONFIG_AMDSBTSI', if_true: files('tmp_sbtsi.c')) diff --git a/hw/sensor/tmp_sbtsi.c b/hw/sensor/tmp_sbtsi.c new file mode 100644 index 0000000000..b68c7ebf61 --- /dev/null +++ b/hw/sensor/tmp_sbtsi.c @@ -0,0 +1,393 @@ +/* + * AMD SBI Temperature Sensor Interface (SB-TSI) + * + * Copyright 2021 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "qemu/osdep.h" +#include "hw/i2c/smbus_slave.h" +#include "hw/irq.h" +#include "migration/vmstate.h" +#include "qapi/error.h" +#include "qapi/visitor.h" +#include "qemu/log.h" +#include "qemu/module.h" +#include "trace.h" + +#define TYPE_SBTSI "sbtsi" +#define SBTSI(obj) OBJECT_CHECK(SBTSIState, (obj), TYPE_SBTSI) + +/** + * SBTSIState: + * temperatures are in units of 0.125 degrees + * @temperature: Temperature + * @limit_low: Lowest temperature + * @limit_high: Highest temperature + * @status: The status register + * @config: The config register + * @alert_config: The config for alarm_l output. + * @addr: The address to read/write for the next cmd. + * @alarm: The alarm_l output pin (GPIO) + */ +typedef struct SBTSIState { + SMBusDevice parent; + + uint32_t temperature; + uint32_t limit_low; + uint32_t limit_high; + uint8_t status; + uint8_t config; + uint8_t alert_config; + uint8_t addr; + qemu_irq alarm; +} SBTSIState; + +/* + * SB-TSI registers only support SMBus byte data access. "_INT" registers are + * the integer part of a temperature value or limit, and "_DEC" registers are + * corresponding decimal parts. + */ +#define SBTSI_REG_TEMP_INT 0x01 /* RO */ +#define SBTSI_REG_STATUS 0x02 /* RO */ +#define SBTSI_REG_CONFIG 0x03 /* RO */ +#define SBTSI_REG_TEMP_HIGH_INT 0x07 /* RW */ +#define SBTSI_REG_TEMP_LOW_INT 0x08 /* RW */ +#define SBTSI_REG_CONFIG_WR 0x09 /* RW */ +#define SBTSI_REG_TEMP_DEC 0x10 /* RO */ +#define SBTSI_REG_TEMP_HIGH_DEC 0x13 /* RW */ +#define SBTSI_REG_TEMP_LOW_DEC 0x14 /* RW */ +#define SBTSI_REG_ALERT_CONFIG 0xBF /* RW */ +#define SBTSI_REG_MAN 0xFE /* RO */ +#define SBTSI_REG_REV 0xFF /* RO */ + +#define SBTSI_STATUS_HIGH_ALERT BIT(4) +#define SBTSI_STATUS_LOW_ALERT BIT(3) +#define SBTSI_CONFIG_ALERT_MASK BIT(7) +#define SBTSI_ALARM_EN BIT(0) + +#define SBTSI_LIMIT_LOW_DEFAULT (0) +#define SBTSI_LIMIT_HIGH_DEFAULT (560) +#define SBTSI_MAN_DEFAULT (0) +#define SBTSI_REV_DEFAULT (4) +#define SBTSI_ALARM_L "alarm_l" + +/* The temperature we stored are in units of 0.125 degrees. */ +#define SBTSI_TEMP_UNIT_IN_MILLIDEGREE 125 + +/* + * The integer part and decimal of the temperature both 8 bits. + * Only the top 3 bits of the decimal parts are used. + * So the max temperature is (2^8-1) + (2^3-1)/8 = 255.875 degrees. + */ +#define SBTSI_TEMP_MAX 255875 + +/* The integer part of the temperature in terms of 0.125 degrees. */ +static uint8_t get_temp_int(uint32_t temp) +{ + return temp >> 3; +} + +/* + * The decimal part of the temperature, in terms of 0.125 degrees. + * H/W store it in the top 3 bits so we shift it by 5. + */ +static uint8_t get_temp_dec(uint32_t temp) +{ + return (temp & 0x7) << 5; +} + +/* + * Compute the temperature using the integer and decimal part, + * in terms of 0.125 degrees. The decimal part are only the top 3 bits + * so we shift it by 5 here. + */ +static uint32_t compute_temp(uint8_t integer, uint8_t decimal) +{ + return (integer << 3) + (decimal >> 5); +} + +/* Compute new temp with new int part of the temperature. */ +static uint32_t compute_temp_int(uint32_t temp, uint8_t integer) +{ + return compute_temp(integer, get_temp_dec(temp)); +} + +/* Compute new temp with new dec part of the temperature. */ +static uint32_t compute_temp_dec(uint32_t temp, uint8_t decimal) +{ + return compute_temp(get_temp_int(temp), decimal); +} + +/* The integer part of the temperature. */ +static void sbtsi_update_status(SBTSIState *s) +{ + s->status = 0; + if (s->alert_config & SBTSI_ALARM_EN) { + if (s->temperature >= s->limit_high) { + s->status |= SBTSI_STATUS_HIGH_ALERT; + } + if (s->temperature <= s->limit_low) { + s->status |= SBTSI_STATUS_LOW_ALERT; + } + } +} + +static void sbtsi_update_alarm(SBTSIState *s) +{ + sbtsi_update_status(s); + if (s->status != 0 && !(s->config & SBTSI_CONFIG_ALERT_MASK)) { + qemu_irq_raise(s->alarm); + } else { + qemu_irq_lower(s->alarm); + } +} + +static uint8_t sbtsi_read_byte(SMBusDevice *d) +{ + SBTSIState *s = SBTSI(d); + uint8_t data = 0; + + switch (s->addr) { + case SBTSI_REG_TEMP_INT: + data = get_temp_int(s->temperature); + break; + + case SBTSI_REG_TEMP_DEC: + data = get_temp_dec(s->temperature); + break; + + case SBTSI_REG_TEMP_HIGH_INT: + data = get_temp_int(s->limit_high); + break; + + case SBTSI_REG_TEMP_LOW_INT: + data = get_temp_int(s->limit_low); + break; + + case SBTSI_REG_TEMP_HIGH_DEC: + data = get_temp_dec(s->limit_high); + break; + + case SBTSI_REG_TEMP_LOW_DEC: + data = get_temp_dec(s->limit_low); + break; + + case SBTSI_REG_CONFIG: + case SBTSI_REG_CONFIG_WR: + data = s->config; + break; + + case SBTSI_REG_STATUS: + sbtsi_update_alarm(s); + data = s->status; + break; + + case SBTSI_REG_ALERT_CONFIG: + data = s->alert_config; + break; + + case SBTSI_REG_MAN: + data = SBTSI_MAN_DEFAULT; + break; + + case SBTSI_REG_REV: + data = SBTSI_REV_DEFAULT; + break; + + default: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: reading from invalid reg: 0x%02x\n", + __func__, s->addr); + break; + } + + trace_tmp_sbtsi_read_data(s->addr, data); + return data; +} + +static void sbtsi_write(SBTSIState *s, uint8_t data) +{ + trace_tmp_sbtsi_write_data(s->addr, data); + switch (s->addr) { + case SBTSI_REG_CONFIG_WR: + s->config = data; + break; + + case SBTSI_REG_TEMP_HIGH_INT: + s->limit_high = compute_temp_int(s->limit_high, data); + break; + + case SBTSI_REG_TEMP_LOW_INT: + s->limit_low = compute_temp_int(s->limit_low, data); + break; + + case SBTSI_REG_TEMP_HIGH_DEC: + s->limit_high = compute_temp_dec(s->limit_high, data); + break; + + case SBTSI_REG_TEMP_LOW_DEC: + s->limit_low = compute_temp_dec(s->limit_low, data); + break; + + case SBTSI_REG_ALERT_CONFIG: + s->alert_config = data; + break; + + case SBTSI_REG_TEMP_INT: + case SBTSI_REG_TEMP_DEC: + case SBTSI_REG_CONFIG: + case SBTSI_REG_STATUS: + case SBTSI_REG_MAN: + case SBTSI_REG_REV: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: writing to read only reg: 0x%02x data: 0x%02x\n", + __func__, s->addr, data); + break; + + default: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: writing to invalid reg: 0x%02x data: 0x%02x\n", + __func__, s->addr, data); + break; + } + sbtsi_update_alarm(s); +} + +static int sbtsi_write_data(SMBusDevice *d, uint8_t *buf, uint8_t len) +{ + SBTSIState *s = SBTSI(d); + + if (len == 0) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: writing empty data\n", __func__); + return -1; + } + + s->addr = buf[0]; + if (len > 1) { + sbtsi_write(s, buf[1]); + if (len > 2) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: extra data at end\n", __func__); + } + } + return 0; +} + +/* Units are millidegrees. */ +static void sbtsi_get_temperature(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + SBTSIState *s = SBTSI(obj); + uint32_t temp = s->temperature * SBTSI_TEMP_UNIT_IN_MILLIDEGREE; + + visit_type_uint32(v, name, &temp, errp); +} + +/* Units are millidegrees. */ +static void sbtsi_set_temperature(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + SBTSIState *s = SBTSI(obj); + uint32_t temp; + + if (!visit_type_uint32(v, name, &temp, errp)) { + return; + } + if (temp > SBTSI_TEMP_MAX) { + error_setg(errp, "value %" PRIu32 ".%03" PRIu32 " C is out of range", + temp / 1000, temp % 1000); + return; + } + + s->temperature = temp / SBTSI_TEMP_UNIT_IN_MILLIDEGREE; + sbtsi_update_alarm(s); +} + +static int sbtsi_post_load(void *opaque, int version_id) +{ + SBTSIState *s = opaque; + + sbtsi_update_alarm(s); + return 0; +} + +static const VMStateDescription vmstate_sbtsi = { + .name = "SBTSI", + .version_id = 0, + .minimum_version_id = 0, + .post_load = sbtsi_post_load, + .fields = (VMStateField[]) { + VMSTATE_UINT32(temperature, SBTSIState), + VMSTATE_UINT32(limit_low, SBTSIState), + VMSTATE_UINT32(limit_high, SBTSIState), + VMSTATE_UINT8(config, SBTSIState), + VMSTATE_UINT8(status, SBTSIState), + VMSTATE_UINT8(addr, SBTSIState), + VMSTATE_END_OF_LIST() + } +}; + +static void sbtsi_enter_reset(Object *obj, ResetType type) +{ + SBTSIState *s = SBTSI(obj); + + s->config = 0; + s->limit_low = SBTSI_LIMIT_LOW_DEFAULT; + s->limit_high = SBTSI_LIMIT_HIGH_DEFAULT; +} + +static void sbtsi_hold_reset(Object *obj) +{ + SBTSIState *s = SBTSI(obj); + + qemu_irq_lower(s->alarm); +} + +static void sbtsi_init(Object *obj) +{ + SBTSIState *s = SBTSI(obj); + + /* Current temperature in millidegrees. */ + object_property_add(obj, "temperature", "uint32", + sbtsi_get_temperature, sbtsi_set_temperature, + NULL, NULL); + qdev_init_gpio_out_named(DEVICE(obj), &s->alarm, SBTSI_ALARM_L, 0); +} + +static void sbtsi_class_init(ObjectClass *klass, void *data) +{ + ResettableClass *rc = RESETTABLE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + SMBusDeviceClass *k = SMBUS_DEVICE_CLASS(klass); + + dc->desc = "SB-TSI Temperature Sensor"; + dc->vmsd = &vmstate_sbtsi; + k->write_data = sbtsi_write_data; + k->receive_byte = sbtsi_read_byte; + rc->phases.enter = sbtsi_enter_reset; + rc->phases.hold = sbtsi_hold_reset; +} + +static const TypeInfo sbtsi_info = { + .name = TYPE_SBTSI, + .parent = TYPE_SMBUS_DEVICE, + .instance_size = sizeof(SBTSIState), + .instance_init = sbtsi_init, + .class_init = sbtsi_class_init, +}; + +static void sbtsi_register_types(void) +{ + type_register_static(&sbtsi_info); +} + +type_init(sbtsi_register_types) diff --git a/hw/sensor/trace-events b/hw/sensor/trace-events new file mode 100644 index 0000000000..21ab3809e2 --- /dev/null +++ b/hw/sensor/trace-events @@ -0,0 +1,5 @@ +# See docs/devel/tracing.rst for syntax documentation. + +# tmp_sbtsi.c +tmp_sbtsi_write_data(uint8_t addr, uint8_t value) "SBTSI write addr:0x%02x data: 0x%02x" +tmp_sbtsi_read_data(uint8_t addr, uint8_t value) "SBTSI read addr:0x%02x data: 0x%02x" diff --git a/hw/sensor/trace.h b/hw/sensor/trace.h new file mode 100644 index 0000000000..e4721560b0 --- /dev/null +++ b/hw/sensor/trace.h @@ -0,0 +1 @@ +#include "trace/trace-hw_sensor.h" diff --git a/meson.build b/meson.build index 53065e96ec..f8ab0bf74e 100644 --- a/meson.build +++ b/meson.build @@ -2494,6 +2494,7 @@ if have_system 'hw/rtc', 'hw/s390x', 'hw/scsi', + 'hw/sensor', 'hw/sd', 'hw/sh4', 'hw/sparc', diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 37e1eaa449..d1a8c38f74 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -254,6 +254,7 @@ qos_test_ss.add( 'spapr-phb-test.c', 'tmp105-test.c', 'emc141x-test.c', + 'tmp_sbtsi-test.c', 'usb-hcd-ohci-test.c', 'virtio-test.c', 'virtio-blk-test.c', diff --git a/tests/qtest/tmp_sbtsi-test.c b/tests/qtest/tmp_sbtsi-test.c new file mode 100644 index 0000000000..7f5fafacc7 --- /dev/null +++ b/tests/qtest/tmp_sbtsi-test.c @@ -0,0 +1,180 @@ +/* + * QTests for the SBTSI temperature sensor + * + * Copyright 2020 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "qemu/osdep.h" + +#include "libqtest-single.h" +#include "libqos/qgraph.h" +#include "libqos/i2c.h" +#include "qapi/qmp/qdict.h" +#include "qemu/bitops.h" + +#define TEST_ID "sbtsi-test" +#define TEST_ADDR (0x4c) + +/* + * SB-TSI registers only support SMBus byte data access. "_INT" registers are + * the integer part of a temperature value or limit, and "_DEC" registers are + * corresponding decimal parts. + */ +#define REG_TEMP_INT 0x01 /* RO */ +#define REG_STATUS 0x02 /* RO */ +#define REG_CONFIG 0x03 /* RO */ +#define REG_TEMP_HIGH_INT 0x07 /* RW */ +#define REG_TEMP_LOW_INT 0x08 /* RW */ +#define REG_CONFIG_WR 0x09 /* RW */ +#define REG_TEMP_DEC 0x10 /* RO */ +#define REG_TEMP_HIGH_DEC 0x13 /* RW */ +#define REG_TEMP_LOW_DEC 0x14 /* RW */ +#define REG_ALERT_CONFIG 0xBF /* RW */ + +#define STATUS_HIGH_ALERT BIT(4) +#define STATUS_LOW_ALERT BIT(3) +#define CONFIG_ALERT_MASK BIT(7) +#define ALARM_EN BIT(0) + +/* The temperature stored are in units of 0.125 degrees. */ +#define TEMP_UNIT_IN_MILLIDEGREE 125 +#define LIMIT_LOW (10500) +#define LIMIT_HIGH (55125) + +static uint32_t qmp_sbtsi_get_temperature(const char *id) +{ + QDict *response; + int ret; + + response = qmp("{ 'execute': 'qom-get', 'arguments': { 'path': %s, " + "'property': 'temperature' } }", id); + g_assert(qdict_haskey(response, "return")); + ret = (uint32_t)qdict_get_int(response, "return"); + qobject_unref(response); + return ret; +} + +static void qmp_sbtsi_set_temperature(const char *id, uint32_t value) +{ + QDict *response; + + response = qmp("{ 'execute': 'qom-set', 'arguments': { 'path': %s, " + "'property': 'temperature', 'value': %d } }", id, value); + g_assert(qdict_haskey(response, "return")); + qobject_unref(response); +} + +/* + * Compute the temperature using the integer and decimal part and return + * millidegrees. The decimal part are only the top 3 bits so we shift it by + * 5 here. + */ +static uint32_t regs_to_temp(uint8_t integer, uint8_t decimal) +{ + return ((integer << 3) + (decimal >> 5)) * TEMP_UNIT_IN_MILLIDEGREE; +} + +/* + * Compute the integer and decimal parts of the temperature in millidegrees. + * H/W store the decimal in the top 3 bits so we shift it by 5. + */ +static void temp_to_regs(uint32_t temp, uint8_t *integer, uint8_t *decimal) +{ + temp /= TEMP_UNIT_IN_MILLIDEGREE; + *integer = temp >> 3; + *decimal = (temp & 0x7) << 5; +} + +static void tx_rx(void *obj, void *data, QGuestAllocator *alloc) +{ + uint16_t value; + uint8_t integer, decimal; + QI2CDevice *i2cdev = (QI2CDevice *)obj; + + /* Test default values */ + value = qmp_sbtsi_get_temperature(TEST_ID); + g_assert_cmpuint(value, ==, 0); + + integer = i2c_get8(i2cdev, REG_TEMP_INT); + decimal = i2c_get8(i2cdev, REG_TEMP_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, 0); + + /* Test setting temperature */ + qmp_sbtsi_set_temperature(TEST_ID, 20000); + value = qmp_sbtsi_get_temperature(TEST_ID); + g_assert_cmpuint(value, ==, 20000); + + integer = i2c_get8(i2cdev, REG_TEMP_INT); + decimal = i2c_get8(i2cdev, REG_TEMP_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, 20000); + + /* Set alert mask in config */ + i2c_set8(i2cdev, REG_CONFIG_WR, CONFIG_ALERT_MASK); + value = i2c_get8(i2cdev, REG_CONFIG); + g_assert_cmphex(value, ==, CONFIG_ALERT_MASK); + /* Enable alarm_en */ + i2c_set8(i2cdev, REG_ALERT_CONFIG, ALARM_EN); + value = i2c_get8(i2cdev, REG_ALERT_CONFIG); + g_assert_cmphex(value, ==, ALARM_EN); + + /* Test setting limits */ + /* Limit low = 10.500 */ + temp_to_regs(LIMIT_LOW, &integer, &decimal); + i2c_set8(i2cdev, REG_TEMP_LOW_INT, integer); + i2c_set8(i2cdev, REG_TEMP_LOW_DEC, decimal); + integer = i2c_get8(i2cdev, REG_TEMP_LOW_INT); + decimal = i2c_get8(i2cdev, REG_TEMP_LOW_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, LIMIT_LOW); + /* Limit high = 55.125 */ + temp_to_regs(LIMIT_HIGH, &integer, &decimal); + i2c_set8(i2cdev, REG_TEMP_HIGH_INT, integer); + i2c_set8(i2cdev, REG_TEMP_HIGH_DEC, decimal); + integer = i2c_get8(i2cdev, REG_TEMP_HIGH_INT); + decimal = i2c_get8(i2cdev, REG_TEMP_HIGH_DEC); + g_assert_cmpuint(regs_to_temp(integer, decimal), ==, LIMIT_HIGH); + /* No alert is generated. */ + value = i2c_get8(i2cdev, REG_STATUS); + g_assert_cmphex(value, ==, 0); + + /* Test alert for low temperature */ + qmp_sbtsi_set_temperature(TEST_ID, LIMIT_LOW); + value = i2c_get8(i2cdev, REG_STATUS); + g_assert_cmphex(value, ==, STATUS_LOW_ALERT); + + /* Test alert for high temperature */ + qmp_sbtsi_set_temperature(TEST_ID, LIMIT_HIGH); + value = i2c_get8(i2cdev, REG_STATUS); + g_assert_cmphex(value, ==, STATUS_HIGH_ALERT); + + /* Disable alarm_en */ + i2c_set8(i2cdev, REG_ALERT_CONFIG, 0); + value = i2c_get8(i2cdev, REG_ALERT_CONFIG); + g_assert_cmphex(value, ==, 0); + /* No alert when alarm_en is false. */ + value = i2c_get8(i2cdev, REG_STATUS); + g_assert_cmphex(value, ==, 0); +} + +static void sbtsi_register_nodes(void) +{ + QOSGraphEdgeOptions opts = { + .extra_device_opts = "id=" TEST_ID ",address=0x4c" + }; + add_qi2c_address(&opts, &(QI2CAddress) { TEST_ADDR }); + + qos_node_create_driver("sbtsi", i2c_device_create); + qos_node_consumes("sbtsi", "i2c-bus", &opts); + + qos_add_test("tx-rx", "sbtsi", tx_rx, NULL); +} +libqos_init(sbtsi_register_nodes); -- 2.34.1.575.g55b058a8bb-goog
