src/drivers/i2c/da7219/da7219.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <acpi/acpi_device.h>
   5 #include <acpi/acpigen.h>
   6 #include <console/console.h>
   7 #include <device/i2c_simple.h>
   8 #include <device/device.h>
   9
  10 #include "chip.h"
  11
  12 #if CONFIG(HAVE_ACPI_TABLES)
  13
  14 #define DA7219_ACPI_NAME        "DLG7"
  15 #define DA7219_ACPI_HID         "DLGS7219"
  16
  17 static void da7219_fill_ssdt(const struct device *dev)
  18 {
  19         struct drivers_i2c_da7219_config *config = dev->chip_info;
  20         const char *scope = acpi_device_scope(dev);
  21         struct acpi_i2c i2c = {
  22                 .address = dev->path.i2c.device,
  23                 .mode_10bit = dev->path.i2c.mode_10bit,
  24                 .speed = config->bus_speed ? : I2C_SPEED_FAST,
  25                 .resource = scope,
  26         };
  27         struct acpi_dp *dsd, *aad;
  28
  29         if (!scope)
  30                 return;
  31
  32         /* Device */
  33         acpigen_write_scope(scope);
  34         acpigen_write_device(acpi_device_name(dev));
  35         acpigen_write_name_string("_HID", DA7219_ACPI_HID);
  36         acpigen_write_name_integer("_UID", 1);
  37         acpigen_write_name_string("_DDN", dev->chip_ops->name);
  38         acpigen_write_name_integer("_S0W", ACPI_DEVICE_SLEEP_D3_HOT);
  39         acpigen_write_STA(acpi_device_status(dev));
  40
  41         /* Resources */
  42         acpigen_write_name("_CRS");
  43         acpigen_write_resourcetemplate_header();
  44         acpi_device_write_i2c(&i2c);
  45         /* Use either Interrupt() or GpioInt() */
  46         if (config->irq_gpio.pin_count)
  47                 acpi_device_write_gpio(&config->irq_gpio);
  48         else
  49                 acpi_device_write_interrupt(&config->irq);
  50         acpigen_write_resourcetemplate_footer();
  51
  52         /* AAD Child Device Properties */
  53         aad = acpi_dp_new_table("DAAD");
  54         acpi_dp_add_integer(aad, "dlg,btn-cfg", config->btn_cfg);
  55         acpi_dp_add_integer(aad, "dlg,mic-det-thr", config->mic_det_thr);
  56         acpi_dp_add_integer(aad, "dlg,jack-ins-deb", config->jack_ins_deb);
  57         acpi_dp_add_string(aad, "dlg,jack-det-rate", config->jack_det_rate);
  58         acpi_dp_add_integer(aad, "dlg,jack-rem-deb", config->jack_rem_deb);
  59         acpi_dp_add_integer(aad, "dlg,a-d-btn-thr", config->a_d_btn_thr);
  60         acpi_dp_add_integer(aad, "dlg,d-b-btn-thr", config->d_b_btn_thr);
  61         acpi_dp_add_integer(aad, "dlg,b-c-btn-thr", config->b_c_btn_thr);
  62         acpi_dp_add_integer(aad, "dlg,c-mic-btn-thr", config->c_mic_btn_thr);
  63         acpi_dp_add_integer(aad, "dlg,btn-avg", config->btn_avg);
  64         acpi_dp_add_integer(aad, "dlg,adc-1bit-rpt", config->adc_1bit_rpt);
  65         if (config->micbias_pulse_lvl > 0) {
  66                 acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl",
  67                                     config->micbias_pulse_lvl);
  68                 acpi_dp_add_integer(aad, "dlg,micbias-pulse-time",
  69                                     config->micbias_pulse_time);
  70         }
  71
  72         /* DA7219 Properties */
  73         dsd = acpi_dp_new_table("_DSD");
  74         acpi_dp_add_integer(dsd, "dlg,micbias-lvl", config->micbias_lvl);
  75         acpi_dp_add_string(dsd, "dlg,mic-amp-in-sel", config->mic_amp_in_sel);
  76         if (config->mclk_name != NULL)
  77                 acpi_dp_add_string(dsd, "dlg,mclk-name", config->mclk_name);
  78         acpi_dp_add_child(dsd, "da7219_aad", aad);
  79
  80         /* Write Device Property Hierarchy */
  81         acpi_dp_write(dsd);
  82
  83         acpigen_pop_len(); /* Device */
  84         acpigen_pop_len(); /* Scope */
  85
  86         printk(BIOS_INFO, "%s: %s address 0%xh irq %d\n",
  87                acpi_device_path(dev), dev->chip_ops->name,
  88                dev->path.i2c.device, config->irq.pin);
  89 }
  90
  91 static const char *da7219_acpi_name(const struct device *dev)
  92 {
  93         return DA7219_ACPI_NAME;
  94 }
  95 #endif
  96
  97 static struct device_operations da7219_ops = {
  98         .read_resources         = noop_read_resources,
  99         .set_resources          = noop_set_resources,
 100 #if CONFIG(HAVE_ACPI_TABLES)
 101         .acpi_name              = da7219_acpi_name,
 102         .acpi_fill_ssdt         = da7219_fill_ssdt,
 103 #endif
 104 };
 105
 106 static void da7219_enable(struct device *dev)
 107 {
 108         dev->ops = &da7219_ops;
 109 }
 110
 111 struct chip_operations drivers_i2c_da7219_ops = {
 112         .name = "Dialog Semiconductor DA7219 Audio Codec",
 113         .enable_dev = da7219_enable
 114 };