src/drivers/i2c/rt5663/rt5663.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi_device.h>
   4 #include <acpi/acpigen.h>
   5 #include <console/console.h>
   6 #include <device/i2c.h>
   7 #include <device/device.h>
   8 #include "chip.h"
   9
  10 #define RT5663_ACPI_NAME        "RT53"
  11 #define RT5663_ACPI_HID         "10EC5663"
  12
  13 #define RT5663_DP_INT(key, val) \
  14         acpi_dp_add_integer(dp, "realtek," key, (val))
  15
  16 static void rt5663_fill_ssdt(const struct device *dev)
  17 {
  18         struct drivers_i2c_rt5663_config *config = dev->chip_info;
  19         const char *scope = acpi_device_scope(dev);
  20         struct acpi_i2c i2c = {
  21                 .address = dev->path.i2c.device,
  22                 .mode_10bit = dev->path.i2c.mode_10bit,
  23                 .speed = config->bus_speed ? : I2C_SPEED_FAST,
  24                 .resource = scope,
  25         };
  26         struct acpi_dp *dp;
  27
  28         if (!scope)
  29                 return;
  30
  31         /* Device */
  32         acpigen_write_scope(scope);
  33         acpigen_write_device(acpi_device_name(dev));
  34         acpigen_write_name_string("_HID", RT5663_ACPI_HID);
  35         acpigen_write_name_integer("_UID", config->uid);
  36         acpigen_write_name_string("_DDN", dev->chip_ops->name);
  37         acpigen_write_STA(acpi_device_status(dev));
  38
  39         /* Resources */
  40         acpigen_write_name("_CRS");
  41         acpigen_write_resourcetemplate_header();
  42         acpi_device_write_i2c(&i2c);
  43         /* Allow either GpioInt() or Interrupt() */
  44         if (config->irq_gpio.pin_count)
  45                 acpi_device_write_gpio(&config->irq_gpio);
  46         else
  47                 acpi_device_write_interrupt(&config->irq);
  48         acpigen_write_resourcetemplate_footer();
  49
  50         /* Device Properties */
  51         dp = acpi_dp_new_table("_DSD");
  52         if (config->irq_gpio.pin_count)
  53                 acpi_dp_add_gpio(dp, "irq-gpios", acpi_device_path(dev), 0, 0,
  54                          config->irq_gpio.active_low);
  55         RT5663_DP_INT("dc_offset_l_manual", config->dc_offset_l_manual);
  56         RT5663_DP_INT("dc_offset_r_manual", config->dc_offset_r_manual);
  57         RT5663_DP_INT("dc_offset_l_manual_mic", config->dc_offset_l_manual_mic);
  58         RT5663_DP_INT("dc_offset_r_manual_mic", config->dc_offset_r_manual_mic);
  59         acpi_dp_write(dp);
  60
  61         acpigen_pop_len(); /* Device */
  62         acpigen_pop_len(); /* Scope */
  63
  64         printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev),
  65                         dev->chip_ops->name, dev->path.i2c.device);
  66 }
  67
  68 static const char *rt5663_acpi_name(const struct device *dev)
  69 {
  70         return RT5663_ACPI_NAME;
  71 }
  72
  73 static struct device_operations rt5663_ops = {
  74         .read_resources         = noop_read_resources,
  75         .set_resources          = noop_set_resources,
  76         .acpi_name              = rt5663_acpi_name,
  77         .acpi_fill_ssdt         = rt5663_fill_ssdt,
  78 };
  79
  80 static void rt5663_enable(struct device *dev)
  81 {
  82         dev->ops = &rt5663_ops;
  83 }
  84
  85 struct chip_operations drivers_i2c_rt5663_ops = {
  86         .name = "Realtek RT5663 Codec",
  87         .enable_dev = rt5663_enable
  88 };