rt5663.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi_device.h>
#include <acpi/acpigen.h>
#include <console/console.h>
#include <device/i2c.h>
#include <device/device.h>
#include <device/path.h>
#include "chip.h"
 
#define RT5663_ACPI_NAME        "RT53"
#define RT5663_ACPI_HID         "10EC5663"
 
#define RT5663_DP_INT(key, val) \
        acpi_dp_add_integer(dp, "realtek," key, (val))
 
static void rt5663_fill_ssdt(const struct device *dev)
{
        struct drivers_i2c_rt5663_config *config = dev->chip_info;
        const char *scope = acpi_device_scope(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 *dp;
 
        if (!scope)
                return;
 
        /* Device */
        acpigen_write_scope(scope);
        acpigen_write_device(acpi_device_name(dev));
        acpigen_write_name_string("_HID", RT5663_ACPI_HID);
        acpigen_write_name_integer("_UID", config->uid);
        acpigen_write_name_string("_DDN", dev->chip_ops->name);
        acpigen_write_STA(acpi_device_status(dev));
 
        /* Resources */
        acpigen_write_name("_CRS");
        acpigen_write_resourcetemplate_header();
        acpi_device_write_i2c(&i2c);
        /* Allow either GpioInt() or Interrupt() */
        if (config->irq_gpio.pin_count)
                acpi_device_write_gpio(&config->irq_gpio);
        else
                acpi_device_write_interrupt(&config->irq);
        acpigen_write_resourcetemplate_footer();
 
        /* Device Properties */
        dp = acpi_dp_new_table("_DSD");
        if (config->irq_gpio.pin_count)
                acpi_dp_add_gpio(dp, "irq-gpios", acpi_device_path(dev), 0, 0,
                         config->irq_gpio.active_low);
        RT5663_DP_INT("dc_offset_l_manual", config->dc_offset_l_manual);
        RT5663_DP_INT("dc_offset_r_manual", config->dc_offset_r_manual);
        RT5663_DP_INT("dc_offset_l_manual_mic", config->dc_offset_l_manual_mic);
        RT5663_DP_INT("dc_offset_r_manual_mic", config->dc_offset_r_manual_mic);
        acpi_dp_write(dp);
 
        acpigen_pop_len(); /* Device */
        acpigen_pop_len(); /* Scope */
 
        printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev),
                        dev->chip_ops->name, dev->path.i2c.device);
}
 
static const char *rt5663_acpi_name(const struct device *dev)
{
        return RT5663_ACPI_NAME;
}
 
static struct device_operations rt5663_ops = {
        .read_resources         = noop_read_resources,
        .set_resources          = noop_set_resources,
        .acpi_name              = rt5663_acpi_name,
        .acpi_fill_ssdt         = rt5663_fill_ssdt,
};
 
static void rt5663_enable(struct device *dev)
{
        dev->ops = &rt5663_ops;
}
 
struct chip_operations drivers_i2c_rt5663_ops = {
        CHIP_NAME("Realtek RT5663 Codec")
        .enable_dev = rt5663_enable
};