| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Hans de Goede | 665 | 54.73% | 6 | 26.09% |
| Mark Brown | 360 | 29.63% | 3 | 13.04% |
| Charles Keepax | 104 | 8.56% | 3 | 13.04% |
| Richard Fitzgerald | 70 | 5.76% | 4 | 17.39% |
| Lee Jones | 4 | 0.33% | 1 | 4.35% |
| Sachin Kamat | 3 | 0.25% | 1 | 4.35% |
| Paul Cercueil | 3 | 0.25% | 1 | 4.35% |
| Thomas Gleixner | 2 | 0.16% | 1 | 4.35% |
| Wei Yongjun | 2 | 0.16% | 1 | 4.35% |
| Jingoo Han | 1 | 0.08% | 1 | 4.35% |
| Uwe Kleine-König | 1 | 0.08% | 1 | 4.35% |
| Total | 1215 | 23 |
// SPDX-License-Identifier: GPL-2.0-only /* * arizona-spi.c -- Arizona SPI bus interface * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> */ #include <linux/acpi.h> #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/gpio/machine.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/spi/spi.h> #include <linux/of.h> #include <uapi/linux/input-event-codes.h> #include <linux/mfd/arizona/core.h> #include "arizona.h" #ifdef CONFIG_ACPI static const struct acpi_gpio_params reset_gpios = { 1, 0, false }; static const struct acpi_gpio_params ldoena_gpios = { 2, 0, false }; static const struct acpi_gpio_mapping arizona_acpi_gpios[] = { { "reset-gpios", &reset_gpios, 1, }, { "wlf,ldoena-gpios", &ldoena_gpios, 1 }, { } }; /* * The ACPI resources for the device only describe external GPIO-s. They do * not provide mappings for the GPIO-s coming from the Arizona codec itself. */ static const struct gpiod_lookup arizona_soc_gpios[] = { { "arizona", 2, "wlf,spkvdd-ena", 0, GPIO_ACTIVE_HIGH }, { "arizona", 4, "wlf,micd-pol", 0, GPIO_ACTIVE_LOW }, }; static void arizona_spi_acpi_remove_lookup(void *lookup) { gpiod_remove_lookup_table(lookup); } /* For ACPI tables from boards which ship with Windows as factory OS */ static int arizona_spi_acpi_windows_probe(struct arizona *arizona) { struct gpiod_lookup_table *lookup; acpi_status status; int ret; /* Add mappings for the 2 ACPI declared GPIOs used for reset and ldo-ena */ devm_acpi_dev_add_driver_gpios(arizona->dev, arizona_acpi_gpios); /* Add lookups for the SoCs own GPIOs used for micdet-polarity and spkVDD-enable */ lookup = devm_kzalloc(arizona->dev, struct_size(lookup, table, ARRAY_SIZE(arizona_soc_gpios) + 1), GFP_KERNEL); if (!lookup) return -ENOMEM; lookup->dev_id = dev_name(arizona->dev); memcpy(lookup->table, arizona_soc_gpios, sizeof(arizona_soc_gpios)); gpiod_add_lookup_table(lookup); ret = devm_add_action_or_reset(arizona->dev, arizona_spi_acpi_remove_lookup, lookup); if (ret) return ret; /* Enable 32KHz clock from SoC to codec for jack-detect */ status = acpi_evaluate_object(ACPI_HANDLE(arizona->dev), "CLKE", NULL, NULL); if (ACPI_FAILURE(status)) dev_warn(arizona->dev, "Failed to enable 32KHz clk ACPI error %d\n", status); return 0; } /* For ACPI tables from boards which ship with Android as factory OS */ static int arizona_spi_acpi_android_probe(struct arizona *arizona) { int ret; /* * Get the reset GPIO, treating -ENOENT as -EPROBE_DEFER to wait for * the x86-android-tablets module to register the board specific GPIO * lookup table. */ arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(arizona->pdata.reset)) { ret = PTR_ERR(arizona->pdata.reset); if (ret == -ENOENT) { dev_info_once(arizona->dev, "Deferring probe till GPIO lookup is registered\n"); ret = -EPROBE_DEFER; } return dev_err_probe(arizona->dev, ret, "getting reset GPIO\n"); } return 0; } /* * The AOSP 3.5 mm Headset: Accessory Specification gives the following values: * Function A Play/Pause: 0 ohm * Function D Voice assistant: 135 ohm * Function B Volume Up 240 ohm * Function C Volume Down 470 ohm * Minimum Mic DC resistance 1000 ohm * Minimum Ear speaker impedance 16 ohm * Note the first max value below must be less then the min. speaker impedance, * to allow CTIA/OMTP detection to work. The other max values are the closest * value from extcon-arizona.c:arizona_micd_levels halfway 2 button resistances. */ static const struct arizona_micd_range arizona_micd_aosp_ranges[] = { { .max = 11, .key = KEY_PLAYPAUSE }, { .max = 186, .key = KEY_VOICECOMMAND }, { .max = 348, .key = KEY_VOLUMEUP }, { .max = 752, .key = KEY_VOLUMEDOWN }, }; static int arizona_spi_acpi_probe(struct arizona *arizona) { struct acpi_device *adev = ACPI_COMPANION(arizona->dev); int ret; if (acpi_dev_hid_uid_match(adev, "10WM5102", NULL)) ret = arizona_spi_acpi_android_probe(arizona); else ret = arizona_spi_acpi_windows_probe(arizona); if (ret) return ret; /* * Some DSDTs wrongly declare the IRQ trigger-type as IRQF_TRIGGER_FALLING * The IRQ line will stay low when a new IRQ event happens between reading * the IRQ status flags and acknowledging them. When the IRQ line stays * low like this the IRQ will never trigger again when its type is set * to IRQF_TRIGGER_FALLING. Correct the IRQ trigger-type to fix this. * * Note theoretically it is possible that some boards are not capable * of handling active low level interrupts. In that case setting the * flag to IRQF_TRIGGER_FALLING would not be a bug (and we would need * to work around this) but so far all known usages of IRQF_TRIGGER_FALLING * are a bug in the board's DSDT. */ arizona->pdata.irq_flags = IRQF_TRIGGER_LOW; /* Wait 200 ms after jack insertion */ arizona->pdata.micd_detect_debounce = 200; /* Use standard AOSP values for headset-button mappings */ arizona->pdata.micd_ranges = arizona_micd_aosp_ranges; arizona->pdata.num_micd_ranges = ARRAY_SIZE(arizona_micd_aosp_ranges); /* Use left headphone speaker for HP vs line-out detection */ arizona->pdata.hpdet_channel = ARIZONA_ACCDET_MODE_HPL; return 0; } static const struct acpi_device_id arizona_acpi_match[] = { { .id = "WM510204", .driver_data = WM5102, }, { .id = "WM510205", .driver_data = WM5102, }, { .id = "10WM5102", .driver_data = WM5102, }, { } }; MODULE_DEVICE_TABLE(acpi, arizona_acpi_match); #else static int arizona_spi_acpi_probe(struct arizona *arizona) { return -ENODEV; } #endif static int arizona_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); const void *match_data; struct arizona *arizona; const struct regmap_config *regmap_config = NULL; unsigned long type = 0; int ret; match_data = device_get_match_data(&spi->dev); if (match_data) type = (unsigned long)match_data; else if (id) type = id->driver_data; switch (type) { case WM5102: if (IS_ENABLED(CONFIG_MFD_WM5102)) regmap_config = &wm5102_spi_regmap; break; case WM5110: case WM8280: if (IS_ENABLED(CONFIG_MFD_WM5110)) regmap_config = &wm5110_spi_regmap; break; case WM1831: case CS47L24: if (IS_ENABLED(CONFIG_MFD_CS47L24)) regmap_config = &cs47l24_spi_regmap; break; default: dev_err(&spi->dev, "Unknown device type %ld\n", type); return -EINVAL; } if (!regmap_config) { dev_err(&spi->dev, "No kernel support for device type %ld\n", type); return -EINVAL; } arizona = devm_kzalloc(&spi->dev, sizeof(*arizona), GFP_KERNEL); if (arizona == NULL) return -ENOMEM; arizona->regmap = devm_regmap_init_spi(spi, regmap_config); if (IS_ERR(arizona->regmap)) { ret = PTR_ERR(arizona->regmap); dev_err(&spi->dev, "Failed to allocate register map: %d\n", ret); return ret; } arizona->type = type; arizona->dev = &spi->dev; arizona->irq = spi->irq; if (has_acpi_companion(&spi->dev)) { ret = arizona_spi_acpi_probe(arizona); if (ret) return ret; } return arizona_dev_init(arizona); } static void arizona_spi_remove(struct spi_device *spi) { struct arizona *arizona = spi_get_drvdata(spi); arizona_dev_exit(arizona); } static const struct spi_device_id arizona_spi_ids[] = { { "wm5102", WM5102 }, { "wm5110", WM5110 }, { "wm8280", WM8280 }, { "wm1831", WM1831 }, { "cs47l24", CS47L24 }, { }, }; MODULE_DEVICE_TABLE(spi, arizona_spi_ids); #ifdef CONFIG_OF static const struct of_device_id arizona_spi_of_match[] = { { .compatible = "wlf,wm5102", .data = (void *)WM5102 }, { .compatible = "wlf,wm5110", .data = (void *)WM5110 }, { .compatible = "wlf,wm8280", .data = (void *)WM8280 }, { .compatible = "wlf,wm1831", .data = (void *)WM1831 }, { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 }, {}, }; MODULE_DEVICE_TABLE(of, arizona_spi_of_match); #endif static struct spi_driver arizona_spi_driver = { .driver = { .name = "arizona", .pm = pm_ptr(&arizona_pm_ops), .of_match_table = of_match_ptr(arizona_spi_of_match), .acpi_match_table = ACPI_PTR(arizona_acpi_match), }, .probe = arizona_spi_probe, .remove = arizona_spi_remove, .id_table = arizona_spi_ids, }; module_spi_driver(arizona_spi_driver); MODULE_SOFTDEP("pre: arizona_ldo1"); MODULE_DESCRIPTION("Arizona SPI bus interface"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_LICENSE("GPL");
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