| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi.h> |
| #include <acpi/acpi_device.h> |
| #include <acpi/acpigen.h> |
| #include <console/console.h> |
| #include <device/i2c_simple.h> |
| #include <device/device.h> |
| #include <device/path.h> |
| |
| #include "chip.h" |
| |
| #define CS35L53_ACPI_HID "CSC3541" |
| |
| static void cs35l53_fill_ssdt(const struct device *dev) |
| { |
| struct drivers_i2c_cs35l53_config *config = dev->chip_info; |
| const char *scope = acpi_device_scope(dev); |
| const char *path = acpi_device_path(dev); |
| struct acpi_i2c i2c = { |
| .address = dev->path.i2c.device, |
| .mode_10bit = dev->path.i2c.mode_10bit, |
| .speed = config->bus_speed ? : I2C_SPEED_FAST, |
| .resource = scope, |
| }; |
| struct acpi_dp *dsd; |
| int gpio_index = 0; |
| |
| if (!scope) |
| return; |
| |
| /* Device */ |
| acpigen_write_scope(scope); |
| acpigen_write_device(acpi_device_name(dev)); |
| acpigen_write_name_string("_HID", CS35L53_ACPI_HID); |
| acpigen_write_name_integer("_UID", 0); |
| acpigen_write_name_string("_DDN", dev->chip_ops->name); |
| acpigen_write_name_string("_SUB", config->sub); |
| acpigen_write_STA(acpi_device_status(dev)); |
| |
| /* Resources */ |
| acpigen_write_name("_CRS"); |
| acpigen_write_resourcetemplate_header(); |
| acpi_device_write_i2c(&i2c); |
| /* Use either Interrupt() or GpioInt() */ |
| if (config->irq_gpio.pin_count) |
| acpi_device_write_gpio(&config->irq_gpio); |
| else |
| acpi_device_write_interrupt(&config->irq); |
| |
| /* for cs35l53 reset gpio */ |
| if (config->reset_gpio.pin_count) |
| acpi_device_write_gpio(&config->reset_gpio); |
| |
| acpigen_write_resourcetemplate_footer(); |
| |
| /* Add Child Device Properties */ |
| dsd = acpi_dp_new_table("_DSD"); |
| if (config->irq_gpio.pin_count) |
| acpi_dp_add_gpio(dsd, "irq-gpios", path, |
| gpio_index++, /* Index = 0 */ |
| 0, /* Pin = 0 (There is a single pin in the GPIO resource). */ |
| config->irq_gpio.active_low); |
| if (config->reset_gpio.pin_count) |
| acpi_dp_add_gpio(dsd, "reset-gpios", path, |
| gpio_index++, /* Index = 0 or 1 (if irq gpio is written). */ |
| 0, /* Pin = 0 (There is a single pin in the GPIO resource). */ |
| config->reset_gpio.active_low); |
| |
| acpi_dp_add_integer(dsd, "cirrus,boost-type", config->boost_type); |
| |
| switch (config->boost_type) { |
| case INTERNAL_BOOST: |
| if ((config->boost_peak_milliamp > 4500) || |
| (config->boost_peak_milliamp < 1600) || |
| (config->boost_peak_milliamp % 50)) { |
| printk(BIOS_ERR, |
| "%s: Incorrect boost_peak_milliamp(%d). Using default of 4500 mA\n", |
| __func__, config->boost_peak_milliamp); |
| config->boost_peak_milliamp = 4500; |
| } |
| acpi_dp_add_integer(dsd, "cirrus,boost-peak-milliamp", |
| config->boost_peak_milliamp); |
| acpi_dp_add_integer(dsd, "cirrus,boost-ind-nanohenry", |
| config->boost_ind_nanohenry); |
| acpi_dp_add_integer(dsd, "cirrus,boost-cap-microfarad", |
| config->boost_cap_microfarad); |
| break; |
| case EXTERNAL_BOOST: |
| config->gpio1_output_enable = true; |
| config->gpio1_src_select = GPIO1_SRC_GPIO; |
| break; |
| default: |
| break; |
| } |
| |
| acpi_dp_add_integer(dsd, "cirrus,asp-sdout-hiz", config->asp_sdout_hiz); |
| acpi_dp_add_integer(dsd, "cirrus,gpio1-polarity-invert", |
| config->gpio1_polarity_invert); |
| acpi_dp_add_integer(dsd, "cirrus,gpio1-output-enable", |
| config->gpio1_output_enable); |
| acpi_dp_add_integer(dsd, "cirrus,gpio1-src-select", config->gpio1_src_select); |
| acpi_dp_add_integer(dsd, "cirrus,gpio2-polarity-invert", |
| config->gpio2_polarity_invert); |
| acpi_dp_add_integer(dsd, "cirrus,gpio2-output-enable", |
| config->gpio2_output_enable); |
| acpi_dp_add_integer(dsd, "cirrus,gpio2-src-select", config->gpio2_src_select); |
| |
| /* Write Device Property Hierarchy */ |
| acpi_dp_write(dsd); |
| |
| acpigen_pop_len(); /* Device */ |
| acpigen_pop_len(); /* Scope */ |
| |
| printk(BIOS_INFO, "%s: %s address 0%xh irq %d\n", |
| acpi_device_path(dev), dev->chip_ops->name, |
| dev->path.i2c.device, config->irq.pin); |
| } |
| |
| static const char *cs35l53_acpi_name(const struct device *dev) |
| { |
| struct drivers_i2c_cs35l53_config *config = dev->chip_info; |
| static char name[ACPI_NAME_BUFFER_SIZE]; |
| |
| if (config->name) |
| return config->name; |
| |
| snprintf(name, sizeof(name), "D%03.3X", dev->path.i2c.device); |
| return name; |
| } |
| |
| static struct device_operations cs35l53_ops = { |
| .read_resources = noop_read_resources, |
| .set_resources = noop_set_resources, |
| .acpi_name = cs35l53_acpi_name, |
| .acpi_fill_ssdt = cs35l53_fill_ssdt, |
| }; |
| |
| static void cs35l53_enable(struct device *dev) |
| { |
| dev->ops = &cs35l53_ops; |
| } |
| |
| struct chip_operations drivers_i2c_cs35l53_ops = { |
| CHIP_NAME("Cirrus Logic CS35L53 Audio Codec") |
| .enable_dev = cs35l53_enable |
| }; |