From 5e63b2ea3dfbab9307e197004a3c5ee4e1442582 Mon Sep 17 00:00:00 2001 From: Lucas Tanure Date: Fri, 21 Jan 2022 17:24:27 +0000 Subject: platform/x86: i2c-multi-instantiate: Rename it for a generic serial driver name Rename I2C multi instantiate driver to serial-multi-instantiate for upcoming addition of SPI support Signed-off-by: Lucas Tanure Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20220121172431.6876-6-sbinding@opensource.cirrus.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/platform/x86/serial-multi-instantiate.c | 173 ++++++++++++++++++++++++ 1 file changed, 173 insertions(+) create mode 100644 drivers/platform/x86/serial-multi-instantiate.c (limited to 'drivers/platform/x86/serial-multi-instantiate.c') diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c new file mode 100644 index 000000000000..9af5bcd466d1 --- /dev/null +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -0,0 +1,173 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Serial multi-instantiate driver, pseudo driver to instantiate multiple + * client devices from a single fwnode. + * + * Copyright 2018 Hans de Goede + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define IRQ_RESOURCE_TYPE GENMASK(1, 0) +#define IRQ_RESOURCE_NONE 0 +#define IRQ_RESOURCE_GPIO 1 +#define IRQ_RESOURCE_APIC 2 + +struct smi_instance { + const char *type; + unsigned int flags; + int irq_idx; +}; + +struct smi { + int i2c_num; + struct i2c_client *i2c_devs[]; +}; + +static int smi_probe(struct platform_device *pdev) +{ + struct i2c_board_info board_info = {}; + const struct smi_instance *inst; + struct device *dev = &pdev->dev; + struct acpi_device *adev; + struct smi *smi; + char name[32]; + int i, ret; + + inst = device_get_match_data(dev); + if (!inst) { + dev_err(dev, "Error ACPI match data is missing\n"); + return -ENODEV; + } + + adev = ACPI_COMPANION(dev); + + /* Count number of clients to instantiate */ + ret = i2c_acpi_client_count(adev); + if (ret < 0) + return ret; + + smi = devm_kmalloc(dev, struct_size(smi, i2c_devs, ret), GFP_KERNEL); + if (!smi) + return -ENOMEM; + + smi->i2c_num = ret; + + for (i = 0; i < smi->i2c_num && inst[i].type; i++) { + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, inst[i].type, I2C_NAME_SIZE); + snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst[i].type, i); + board_info.dev_name = name; + switch (inst[i].flags & IRQ_RESOURCE_TYPE) { + case IRQ_RESOURCE_GPIO: + ret = acpi_dev_gpio_irq_get(adev, inst[i].irq_idx); + if (ret < 0) { + dev_err(dev, "Error requesting irq at index %d: %d\n", + inst[i].irq_idx, ret); + goto error; + } + board_info.irq = ret; + break; + case IRQ_RESOURCE_APIC: + ret = platform_get_irq(pdev, inst[i].irq_idx); + if (ret < 0) { + dev_dbg(dev, "Error requesting irq at index %d: %d\n", + inst[i].irq_idx, ret); + goto error; + } + board_info.irq = ret; + break; + default: + board_info.irq = 0; + break; + } + smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info); + if (IS_ERR(smi->i2c_devs[i])) { + ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]), + "Error creating i2c-client, idx %d\n", i); + goto error; + } + } + if (i < smi->i2c_num) { + dev_err(dev, "Error finding driver, idx %d\n", i); + ret = -ENODEV; + goto error; + } + + platform_set_drvdata(pdev, smi); + return 0; + +error: + while (--i >= 0) + i2c_unregister_device(smi->i2c_devs[i]); + + return ret; +} + +static int smi_remove(struct platform_device *pdev) +{ + struct smi *smi = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < smi->i2c_num; i++) + i2c_unregister_device(smi->i2c_devs[i]); + + return 0; +} + +static const struct smi_instance bsg1160_data[] = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + { "bmg160" }, + {} +}; + +static const struct smi_instance bsg2150_data[] = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + /* The resources describe a 3th client, but it is not really there. */ + { "bsg2150_dummy_dev" }, + {} +}; + +static const struct smi_instance int3515_data[] = { + { "tps6598x", IRQ_RESOURCE_APIC, 0 }, + { "tps6598x", IRQ_RESOURCE_APIC, 1 }, + { "tps6598x", IRQ_RESOURCE_APIC, 2 }, + { "tps6598x", IRQ_RESOURCE_APIC, 3 }, + {} +}; + +/* + * Note new device-ids must also be added to ignore_serial_bus_ids in + * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). + */ +static const struct acpi_device_id smi_acpi_ids[] = { + { "BSG1160", (unsigned long)bsg1160_data }, + { "BSG2150", (unsigned long)bsg2150_data }, + { "INT3515", (unsigned long)int3515_data }, + { } +}; +MODULE_DEVICE_TABLE(acpi, smi_acpi_ids); + +static struct platform_driver smi_driver = { + .driver = { + .name = "Serial bus multi instantiate pseudo device driver", + .acpi_match_table = smi_acpi_ids, + }, + .probe = smi_probe, + .remove = smi_remove, +}; +module_platform_driver(smi_driver); + +MODULE_DESCRIPTION("Serial multi instantiate pseudo device driver"); +MODULE_AUTHOR("Hans de Goede "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2 From 35a36cbb7b1ce7596fc03962f7ce261b2e908d1f Mon Sep 17 00:00:00 2001 From: Lucas Tanure Date: Fri, 21 Jan 2022 17:24:28 +0000 Subject: platform/x86: serial-multi-instantiate: Reorganize I2C functions Reorganize I2C functions to accommodate SPI support Split the probe and factor out parts of the code that will be used in the SPI support Also switched from strlcpy() to strscpy() Signed-off-by: Lucas Tanure Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20220121172431.6876-7-sbinding@opensource.cirrus.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/platform/x86/serial-multi-instantiate.c | 144 +++++++++++++++--------- 1 file changed, 90 insertions(+), 54 deletions(-) (limited to 'drivers/platform/x86/serial-multi-instantiate.c') diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c index 9af5bcd466d1..1eb29bec405f 100644 --- a/drivers/platform/x86/serial-multi-instantiate.c +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -29,96 +29,132 @@ struct smi_instance { struct smi { int i2c_num; - struct i2c_client *i2c_devs[]; + struct i2c_client **i2c_devs; }; -static int smi_probe(struct platform_device *pdev) +static int smi_get_irq(struct platform_device *pdev, struct acpi_device *adev, + const struct smi_instance *inst) +{ + int ret; + + switch (inst->flags & IRQ_RESOURCE_TYPE) { + case IRQ_RESOURCE_GPIO: + ret = acpi_dev_gpio_irq_get(adev, inst->irq_idx); + break; + case IRQ_RESOURCE_APIC: + ret = platform_get_irq(pdev, inst->irq_idx); + break; + default: + return 0; + } + + if (ret < 0) + dev_err_probe(&pdev->dev, ret, "Error requesting irq at index %d: %d\n", + inst->irq_idx, ret); + + return ret; +} + +static void smi_devs_unregister(struct smi *smi) +{ + while (smi->i2c_num > 0) + i2c_unregister_device(smi->i2c_devs[--smi->i2c_num]); +} + +/** + * smi_i2c_probe - Instantiate multiple I2C devices from inst array + * @pdev: Platform device + * @adev: ACPI device + * @smi: Internal struct for Serial multi instantiate driver + * @inst_array: Array of instances to probe + * + * Returns the number of I2C devices instantiate, Zero if none is found or a negative error code. + */ +static int smi_i2c_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi, + const struct smi_instance *inst_array) { struct i2c_board_info board_info = {}; - const struct smi_instance *inst; struct device *dev = &pdev->dev; - struct acpi_device *adev; - struct smi *smi; char name[32]; - int i, ret; + int i, ret, count; - inst = device_get_match_data(dev); - if (!inst) { - dev_err(dev, "Error ACPI match data is missing\n"); - return -ENODEV; - } - - adev = ACPI_COMPANION(dev); - - /* Count number of clients to instantiate */ ret = i2c_acpi_client_count(adev); if (ret < 0) return ret; + else if (!ret) + return -ENODEV; - smi = devm_kmalloc(dev, struct_size(smi, i2c_devs, ret), GFP_KERNEL); - if (!smi) - return -ENOMEM; + count = ret; - smi->i2c_num = ret; + smi->i2c_devs = devm_kcalloc(dev, count, sizeof(*smi->i2c_devs), GFP_KERNEL); + if (!smi->i2c_devs) + return -ENOMEM; - for (i = 0; i < smi->i2c_num && inst[i].type; i++) { + for (i = 0; i < count && inst_array[i].type; i++) { memset(&board_info, 0, sizeof(board_info)); - strlcpy(board_info.type, inst[i].type, I2C_NAME_SIZE); - snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst[i].type, i); + strscpy(board_info.type, inst_array[i].type, I2C_NAME_SIZE); + snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst_array[i].type, i); board_info.dev_name = name; - switch (inst[i].flags & IRQ_RESOURCE_TYPE) { - case IRQ_RESOURCE_GPIO: - ret = acpi_dev_gpio_irq_get(adev, inst[i].irq_idx); - if (ret < 0) { - dev_err(dev, "Error requesting irq at index %d: %d\n", - inst[i].irq_idx, ret); - goto error; - } - board_info.irq = ret; - break; - case IRQ_RESOURCE_APIC: - ret = platform_get_irq(pdev, inst[i].irq_idx); - if (ret < 0) { - dev_dbg(dev, "Error requesting irq at index %d: %d\n", - inst[i].irq_idx, ret); - goto error; - } - board_info.irq = ret; - break; - default: - board_info.irq = 0; - break; - } + + ret = smi_get_irq(pdev, adev, &inst_array[i]); + if (ret < 0) + goto error; + board_info.irq = ret; + smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info); if (IS_ERR(smi->i2c_devs[i])) { ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]), "Error creating i2c-client, idx %d\n", i); goto error; } + smi->i2c_num++; } - if (i < smi->i2c_num) { - dev_err(dev, "Error finding driver, idx %d\n", i); + if (smi->i2c_num < count) { + dev_dbg(dev, "Error finding driver, idx %d\n", i); ret = -ENODEV; goto error; } - platform_set_drvdata(pdev, smi); - return 0; + dev_info(dev, "Instantiated %d I2C devices.\n", smi->i2c_num); + return 0; error: - while (--i >= 0) - i2c_unregister_device(smi->i2c_devs[i]); + smi_devs_unregister(smi); return ret; } +static int smi_probe(struct platform_device *pdev) +{ + const struct smi_instance *inst_array; + struct device *dev = &pdev->dev; + struct acpi_device *adev; + struct smi *smi; + + adev = ACPI_COMPANION(dev); + if (!adev) + return -ENODEV; + + inst_array = device_get_match_data(dev); + if (!inst_array) { + dev_dbg(dev, "Error ACPI match data is missing\n"); + return -ENODEV; + } + + smi = devm_kzalloc(dev, sizeof(*smi), GFP_KERNEL); + if (!smi) + return -ENOMEM; + + platform_set_drvdata(pdev, smi); + + return smi_i2c_probe(pdev, adev, smi, inst_array); +} + static int smi_remove(struct platform_device *pdev) { struct smi *smi = platform_get_drvdata(pdev); - int i; - for (i = 0; i < smi->i2c_num; i++) - i2c_unregister_device(smi->i2c_devs[i]); + smi_devs_unregister(smi); return 0; } -- cgit v1.2.3-70-g09d2 From 68f201f9061c000d7a4a9f359f021b1cd535d62b Mon Sep 17 00:00:00 2001 From: Stefan Binding Date: Fri, 21 Jan 2022 17:24:29 +0000 Subject: platform/x86: serial-multi-instantiate: Add SPI support Add support for spi bus in serial-multi-instantiate driver Some peripherals can have either a I2C or a SPI connection to the host (but not both) but use the same HID for both types. So it is not possible to use the HID to determine whether it is I2C or SPI. The driver must check the node to see if it contains I2cSerialBus or SpiSerialBus entries. For backwards-compatibility with the existing nodes I2C is checked first and if such entries are found ONLY I2C devices are created. Since some existing nodes that were already handled by this driver could also contain unrelated SpiSerialBus nodes that were previously ignored, and this preserves that behavior. If there is ever a need to handle a node where both I2C and SPI devices must be instantiated this can be added in future. Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20220121172431.6876-8-sbinding@opensource.cirrus.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/platform/x86/Kconfig | 2 +- drivers/platform/x86/serial-multi-instantiate.c | 173 ++++++++++++++++++++---- 2 files changed, 150 insertions(+), 25 deletions(-) (limited to 'drivers/platform/x86/serial-multi-instantiate.c') diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 2e656909a866..8d1eec208854 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -992,7 +992,7 @@ config TOPSTAR_LAPTOP config SERIAL_MULTI_INSTANTIATE tristate "Serial bus multi instantiate pseudo device driver" - depends on I2C && ACPI + depends on I2C && SPI && ACPI help Some ACPI-based systems list multiple devices in a single ACPI firmware-node. This driver will instantiate separate clients diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c index 1eb29bec405f..e2fd73905312 100644 --- a/drivers/platform/x86/serial-multi-instantiate.c +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #define IRQ_RESOURCE_TYPE GENMASK(1, 0) @@ -21,15 +22,28 @@ #define IRQ_RESOURCE_GPIO 1 #define IRQ_RESOURCE_APIC 2 +enum smi_bus_type { + SMI_I2C, + SMI_SPI, + SMI_AUTO_DETECT, +}; + struct smi_instance { const char *type; unsigned int flags; int irq_idx; }; +struct smi_node { + enum smi_bus_type bus_type; + struct smi_instance instances[]; +}; + struct smi { int i2c_num; + int spi_num; struct i2c_client **i2c_devs; + struct spi_device **spi_devs; }; static int smi_get_irq(struct platform_device *pdev, struct acpi_device *adev, @@ -59,6 +73,94 @@ static void smi_devs_unregister(struct smi *smi) { while (smi->i2c_num > 0) i2c_unregister_device(smi->i2c_devs[--smi->i2c_num]); + + while (smi->spi_num > 0) + spi_unregister_device(smi->spi_devs[--smi->spi_num]); +} + +/** + * smi_spi_probe - Instantiate multiple SPI devices from inst array + * @pdev: Platform device + * @adev: ACPI device + * @smi: Internal struct for Serial multi instantiate driver + * @inst_array: Array of instances to probe + * + * Returns the number of SPI devices instantiate, Zero if none is found or a negative error code. + */ +static int smi_spi_probe(struct platform_device *pdev, struct acpi_device *adev, struct smi *smi, + const struct smi_instance *inst_array) +{ + struct device *dev = &pdev->dev; + struct spi_controller *ctlr; + struct spi_device *spi_dev; + char name[50]; + int i, ret, count; + + ret = acpi_spi_count_resources(adev); + if (ret < 0) + return ret; + else if (!ret) + return -ENODEV; + + count = ret; + + smi->spi_devs = devm_kcalloc(dev, count, sizeof(*smi->spi_devs), GFP_KERNEL); + if (!smi->spi_devs) + return -ENOMEM; + + for (i = 0; i < count && inst_array[i].type; i++) { + + spi_dev = acpi_spi_device_alloc(NULL, adev, i); + if (IS_ERR(spi_dev)) { + ret = PTR_ERR(spi_dev); + dev_err_probe(dev, ret, "failed to allocate SPI device %s from ACPI: %d\n", + dev_name(&adev->dev), ret); + goto error; + } + + ctlr = spi_dev->controller; + + strscpy(spi_dev->modalias, inst_array[i].type, sizeof(spi_dev->modalias)); + + ret = smi_get_irq(pdev, adev, &inst_array[i]); + if (ret < 0) { + spi_dev_put(spi_dev); + goto error; + } + spi_dev->irq = ret; + + snprintf(name, sizeof(name), "%s-%s-%s.%d", dev_name(&ctlr->dev), dev_name(dev), + inst_array[i].type, i); + spi_dev->dev.init_name = name; + + ret = spi_add_device(spi_dev); + if (ret) { + dev_err_probe(&ctlr->dev, ret, + "failed to add SPI device %s from ACPI: %d\n", + dev_name(&adev->dev), ret); + spi_dev_put(spi_dev); + goto error; + } + + dev_dbg(dev, "SPI device %s using chip select %u", name, spi_dev->chip_select); + + smi->spi_devs[i] = spi_dev; + smi->spi_num++; + } + + if (smi->spi_num < count) { + dev_dbg(dev, "Error finding driver, idx %d\n", i); + ret = -ENODEV; + goto error; + } + + dev_info(dev, "Instantiated %d SPI devices.\n", smi->spi_num); + + return 0; +error: + smi_devs_unregister(smi); + + return ret; } /** @@ -126,8 +228,8 @@ error: static int smi_probe(struct platform_device *pdev) { - const struct smi_instance *inst_array; struct device *dev = &pdev->dev; + const struct smi_node *node; struct acpi_device *adev; struct smi *smi; @@ -135,8 +237,8 @@ static int smi_probe(struct platform_device *pdev) if (!adev) return -ENODEV; - inst_array = device_get_match_data(dev); - if (!inst_array) { + node = device_get_match_data(dev); + if (!node) { dev_dbg(dev, "Error ACPI match data is missing\n"); return -ENODEV; } @@ -147,7 +249,21 @@ static int smi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, smi); - return smi_i2c_probe(pdev, adev, smi, inst_array); + switch (node->bus_type) { + case SMI_I2C: + return smi_i2c_probe(pdev, adev, smi, node->instances); + case SMI_SPI: + return smi_spi_probe(pdev, adev, smi, node->instances); + case SMI_AUTO_DETECT: + if (i2c_acpi_client_count(adev) > 0) + return smi_i2c_probe(pdev, adev, smi, node->instances); + else + return smi_spi_probe(pdev, adev, smi, node->instances); + default: + return -EINVAL; + } + + return 0; /* never reached */ } static int smi_remove(struct platform_device *pdev) @@ -159,27 +275,36 @@ static int smi_remove(struct platform_device *pdev) return 0; } -static const struct smi_instance bsg1160_data[] = { - { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, - { "bmc150_magn" }, - { "bmg160" }, - {} +static const struct smi_node bsg1160_data = { + .instances = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + { "bmg160" }, + {} + }, + .bus_type = SMI_I2C, }; -static const struct smi_instance bsg2150_data[] = { - { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, - { "bmc150_magn" }, - /* The resources describe a 3th client, but it is not really there. */ - { "bsg2150_dummy_dev" }, - {} +static const struct smi_node bsg2150_data = { + .instances = { + { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 }, + { "bmc150_magn" }, + /* The resources describe a 3th client, but it is not really there. */ + { "bsg2150_dummy_dev" }, + {} + }, + .bus_type = SMI_I2C, }; -static const struct smi_instance int3515_data[] = { - { "tps6598x", IRQ_RESOURCE_APIC, 0 }, - { "tps6598x", IRQ_RESOURCE_APIC, 1 }, - { "tps6598x", IRQ_RESOURCE_APIC, 2 }, - { "tps6598x", IRQ_RESOURCE_APIC, 3 }, - {} +static const struct smi_node int3515_data = { + .instances = { + { "tps6598x", IRQ_RESOURCE_APIC, 0 }, + { "tps6598x", IRQ_RESOURCE_APIC, 1 }, + { "tps6598x", IRQ_RESOURCE_APIC, 2 }, + { "tps6598x", IRQ_RESOURCE_APIC, 3 }, + {} + }, + .bus_type = SMI_I2C, }; /* @@ -187,9 +312,9 @@ static const struct smi_instance int3515_data[] = { * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). */ static const struct acpi_device_id smi_acpi_ids[] = { - { "BSG1160", (unsigned long)bsg1160_data }, - { "BSG2150", (unsigned long)bsg2150_data }, - { "INT3515", (unsigned long)int3515_data }, + { "BSG1160", (unsigned long)&bsg1160_data }, + { "BSG2150", (unsigned long)&bsg2150_data }, + { "INT3515", (unsigned long)&int3515_data }, { } }; MODULE_DEVICE_TABLE(acpi, smi_acpi_ids); -- cgit v1.2.3-70-g09d2 From d9c01c530cc5e3b6d5bdfeae12c3d0f33fae7498 Mon Sep 17 00:00:00 2001 From: Lucas Tanure Date: Fri, 21 Jan 2022 17:24:31 +0000 Subject: ACPI / scan: Create platform device for CS35L41 The ACPI device with CSC3551 or CLSA0100 are sound cards with multiple instances of CS35L41 connected by I2C or SPI to the main CPU. We add an ID to the ignore_serial_bus_ids list to enumerate all I2C or SPI devices correctly. The same IDs are also added into serial-multi-instantiate so that the driver can correctly enumerate the ACPI. Signed-off-by: Lucas Tanure Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20220121172431.6876-10-sbinding@opensource.cirrus.com Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/acpi/scan.c | 3 +++ drivers/platform/x86/serial-multi-instantiate.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+) (limited to 'drivers/platform/x86/serial-multi-instantiate.c') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 48db5e80c2dc..4463c2eda61e 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1744,8 +1744,11 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) */ {"BSG1160", }, {"BSG2150", }, + {"CSC3551", }, {"INT33FE", }, {"INT3515", }, + /* Non-conforming _HID for Cirrus Logic already released */ + {"CLSA0100", }, /* * HIDs of device with an UartSerialBusV2 resource for which userspace * expects a regular tty cdev to be created (instead of the in kernel diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c index e2fd73905312..1e8063b7c169 100644 --- a/drivers/platform/x86/serial-multi-instantiate.c +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -307,6 +307,17 @@ static const struct smi_node int3515_data = { .bus_type = SMI_I2C, }; +static const struct smi_node cs35l41_hda = { + .instances = { + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41-hda", IRQ_RESOURCE_GPIO, 0 }, + {} + }, + .bus_type = SMI_AUTO_DETECT, +}; + /* * Note new device-ids must also be added to ignore_serial_bus_ids in * drivers/acpi/scan.c: acpi_device_enumeration_by_parent(). @@ -315,6 +326,9 @@ static const struct acpi_device_id smi_acpi_ids[] = { { "BSG1160", (unsigned long)&bsg1160_data }, { "BSG2150", (unsigned long)&bsg2150_data }, { "INT3515", (unsigned long)&int3515_data }, + { "CSC3551", (unsigned long)&cs35l41_hda }, + /* Non-conforming _HID for Cirrus Logic already released */ + { "CLSA0100", (unsigned long)&cs35l41_hda }, { } }; MODULE_DEVICE_TABLE(acpi, smi_acpi_ids); -- cgit v1.2.3-70-g09d2