--- /dev/null
+/*
+ * Core MFD support for Cirrus Logic Madera codecs
+ *
+ * Copyright 2015-2017 Cirrus Logic
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+
+#include <linux/mfd/madera/core.h>
+#include <linux/mfd/madera/registers.h>
+
+#include "madera.h"
+
+#define CS47L35_SILICON_ID 0x6360
+#define CS47L85_SILICON_ID 0x6338
+#define CS47L90_SILICON_ID 0x6364
+
+#define MADERA_32KZ_MCLK2 1
+
+static const char * const madera_core_supplies[] = {
+ "AVDD",
+ "DBVDD1",
+};
+
+static const struct mfd_cell madera_ldo1_devs[] = {
+ { .name = "madera-ldo1" },
+};
+
+static const char * const cs47l35_supplies[] = {
+ "MICVDD",
+ "DBVDD2",
+ "CPVDD1",
+ "CPVDD2",
+ "SPKVDD",
+};
+
+static const struct mfd_cell cs47l35_devs[] = {
+ { .name = "madera-pinctrl", },
+ { .name = "madera-irq", },
+ { .name = "madera-micsupp" },
+ { .name = "madera-gpio", },
+ { .name = "madera-extcon", },
+ {
+ .name = "cs47l35-codec",
+ .parent_supplies = cs47l35_supplies,
+ .num_parent_supplies = ARRAY_SIZE(cs47l35_supplies),
+ },
+};
+
+static const char * const cs47l85_supplies[] = {
+ "MICVDD",
+ "DBVDD2",
+ "DBVDD3",
+ "DBVDD4",
+ "CPVDD1",
+ "CPVDD2",
+ "SPKVDDL",
+ "SPKVDDR",
+};
+
+static const struct mfd_cell cs47l85_devs[] = {
+ { .name = "madera-pinctrl", },
+ { .name = "madera-irq", },
+ { .name = "madera-micsupp", },
+ { .name = "madera-gpio", },
+ { .name = "madera-extcon", },
+ {
+ .name = "cs47l85-codec",
+ .parent_supplies = cs47l85_supplies,
+ .num_parent_supplies = ARRAY_SIZE(cs47l85_supplies),
+ },
+};
+
+static const char * const cs47l90_supplies[] = {
+ "MICVDD",
+ "DBVDD2",
+ "DBVDD3",
+ "DBVDD4",
+ "CPVDD1",
+ "CPVDD2",
+};
+
+static const struct mfd_cell cs47l90_devs[] = {
+ { .name = "madera-pinctrl", },
+ { .name = "madera-irq", },
+ { .name = "madera-micsupp", },
+ { .name = "madera-gpio", },
+ { .name = "madera-extcon", },
+ {
+ .name = "cs47l90-codec",
+ .parent_supplies = cs47l90_supplies,
+ .num_parent_supplies = ARRAY_SIZE(cs47l90_supplies),
+ },
+};
+
+const char *madera_name_from_type(enum madera_type type)
+{
+ switch (type) {
+ case CS47L35:
+ return "CS47L35";
+ case CS47L85:
+ return "CS47L85";
+ case CS47L90:
+ return "CS47L90";
+ case CS47L91:
+ return "CS47L91";
+ case WM1840:
+ return "WM1840";
+ default:
+ return "Unknown";
+ }
+}
+EXPORT_SYMBOL_GPL(madera_name_from_type);
+
+#define MADERA_BOOT_POLL_MAX_INTERVAL_US 5000
+#define MADERA_BOOT_POLL_TIMEOUT_US 25000
+
+static int madera_wait_for_boot(struct madera *madera)
+{
+ unsigned int val;
+ int ret;
+
+ /*
+ * We can't use an interrupt as we need to runtime resume to do so,
+ * so we poll the status bit. This won't race with the interrupt
+ * handler because it will be blocked on runtime resume.
+ */
+ ret = regmap_read_poll_timeout(madera->regmap,
+ MADERA_IRQ1_RAW_STATUS_1,
+ val,
+ (val & MADERA_BOOT_DONE_STS1),
+ MADERA_BOOT_POLL_MAX_INTERVAL_US,
+ MADERA_BOOT_POLL_TIMEOUT_US);
+
+ if (ret)
+ dev_err(madera->dev, "Polling BOOT_DONE_STS failed: %d\n", ret);
+
+ /*
+ * BOOT_DONE defaults to unmasked on boot so we must ack it.
+ * Do this unconditionally to avoid interrupt storms
+ */
+ regmap_write(madera->regmap, MADERA_IRQ1_STATUS_1,
+ MADERA_BOOT_DONE_EINT1);
+
+ if (ret)
+ dev_err(madera->dev, "Polling BOOT_DONE_STS failed: %d\n", ret);
+
+ pm_runtime_mark_last_busy(madera->dev);
+
+ return ret;
+}
+
+static int madera_soft_reset(struct madera *madera)
+{
+ int ret;
+
+ ret = regmap_write(madera->regmap, MADERA_SOFTWARE_RESET, 0);
+ if (ret != 0) {
+ dev_err(madera->dev, "Failed to soft reset device: %d\n", ret);
+ return ret;
+ }
+
+ /* Allow time for internal clocks to startup after reset */
+ usleep_range(1000, 2000);
+
+ return 0;
+}
+
+static void madera_enable_hard_reset(struct madera *madera)
+{
+ if (madera->reset_gpio)
+ gpiod_set_value_cansleep(madera->reset_gpio, 0);
+}
+
+static void madera_disable_hard_reset(struct madera *madera)
+{
+ if (madera->reset_gpio) {
+ gpiod_set_value_cansleep(madera->reset_gpio, 1);
+ usleep_range(1000, 2000);
+ }
+}
+
+#ifdef CONFIG_PM
+static int madera_runtime_resume(struct device *dev)
+{
+ struct madera *madera = dev_get_drvdata(dev);
+ int ret;
+
+ dev_dbg(dev, "Leaving sleep mode\n");
+
+ ret = regulator_enable(madera->dcvdd);
+ if (ret) {
+ dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
+ return ret;
+ }
+
+ regcache_cache_only(madera->regmap, false);
+ regcache_cache_only(madera->regmap_32bit, false);
+
+ ret = madera_wait_for_boot(madera);
+ if (ret)
+ goto err;
+
+ ret = regcache_sync(madera->regmap);
+ if (ret) {
+ dev_err(dev, "Failed to restore 16-bit register cache\n");
+ goto err;
+ }
+
+ ret = regcache_sync(madera->regmap_32bit);
+ if (ret) {
+ dev_err(dev, "Failed to restore 32-bit register cache\n");
+ goto err;
+ }
+
+ return 0;
+
+err:
+ regcache_cache_only(madera->regmap_32bit, true);
+ regcache_cache_only(madera->regmap, true);
+ regulator_disable(madera->dcvdd);
+
+ return ret;
+}
+
+static int madera_runtime_suspend(struct device *dev)
+{
+ struct madera *madera = dev_get_drvdata(dev);
+
+ dev_dbg(madera->dev, "Entering sleep mode\n");
+
+ regcache_cache_only(madera->regmap, true);
+ regcache_mark_dirty(madera->regmap);
+ regcache_cache_only(madera->regmap_32bit, true);
+ regcache_mark_dirty(madera->regmap_32bit);
+
+ regulator_disable(madera->dcvdd);
+
+ return 0;
+}
+#endif
+
+const struct dev_pm_ops madera_pm_ops = {
+ SET_RUNTIME_PM_OPS(madera_runtime_suspend,
+ madera_runtime_resume,
+ NULL)
+};
+EXPORT_SYMBOL_GPL(madera_pm_ops);
+
+unsigned int madera_get_num_micbias(struct madera *madera)
+{
+
+ switch (madera->type) {
+ case CS47L35:
+ return 2;
+ case CS47L85:
+ case WM1840:
+ return 4;
+ case CS47L90:
+ case CS47L91:
+ return 2;
+ default:
+ dev_warn(madera->dev, "No micbias known for codec %s\n",
+ madera_name_from_type(madera->type));
+ return 0;
+ }
+}
+EXPORT_SYMBOL_GPL(madera_get_num_micbias);
+
+unsigned int madera_get_num_childbias(struct madera *madera,
+ unsigned int micbias)
+{
+ /*
+ * micbias argument reserved for future codecs that don't
+ * have the same number of children on each micbias
+ */
+
+ switch (madera->type) {
+ case CS47L35:
+ return 2;
+ case CS47L85:
+ case WM1840:
+ return 0;
+ case CS47L90:
+ case CS47L91:
+ return 4;
+ default:
+ dev_warn(madera->dev, "No child micbias known for codec %s\n",
+ madera_name_from_type(madera->type));
+ return 0;
+ }
+}
+EXPORT_SYMBOL_GPL(madera_get_num_childbias);
+
+#ifdef CONFIG_OF
+const struct of_device_id madera_of_match[] = {
+ { .compatible = "cirrus,cs47l35", .data = (void *)CS47L35 },
+ { .compatible = "cirrus,cs47l85", .data = (void *)CS47L85 },
+ { .compatible = "cirrus,cs47l90", .data = (void *)CS47L90 },
+ { .compatible = "cirrus,cs47l91", .data = (void *)CS47L91 },
+ { .compatible = "cirrus,wm1840", .data = (void *)WM1840 },
+ {},
+};
+EXPORT_SYMBOL_GPL(madera_of_match);
+
+unsigned long madera_get_type_from_of(struct device *dev)
+{
+ const struct of_device_id *id = of_match_device(madera_of_match, dev);
+
+ if (id)
+ return (unsigned long)id->data;
+ else
+ return 0;
+}
+EXPORT_SYMBOL_GPL(madera_get_type_from_of);
+#endif
+
+static int madera_get_reset_gpio(struct madera *madera)
+{
+ int ret;
+
+ /* We use 0 in pdata to indicate a GPIO has not been set */
+ if (dev_get_platdata(madera->dev) && (madera->pdata.reset > 0)) {
+ /* Start out with /RESET asserted */
+ ret = devm_gpio_request_one(madera->dev,
+ madera->pdata.reset,
+ GPIOF_DIR_OUT | GPIOF_INIT_LOW,
+ "madera reset");
+ if (!ret)
+ madera->reset_gpio = gpio_to_desc(madera->pdata.reset);
+ } else {
+ madera->reset_gpio = devm_gpiod_get_optional(madera->dev,
+ "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(madera->reset_gpio))
+ ret = PTR_ERR(madera->reset_gpio);
+ else
+ ret = 0;
+ }
+
+ if (ret == -EPROBE_DEFER)
+ return ret;
+
+ if (ret) {
+ dev_err(madera->dev, "Failed to request /RESET: %d\n", ret);
+ return ret;
+ }
+
+ if (!madera->reset_gpio)
+ dev_warn(madera->dev,
+ "Running without reset GPIO is not recommended\n");
+
+ return 0;
+}
+
+static void madera_prop_get_micbias_child(struct madera *madera,
+ const char *name,
+ struct madera_micbias_pin_pdata *pdata)
+{
+ struct device_node *np;
+ struct regulator_desc desc = { };
+
+ np = of_get_child_by_name(madera->dev->of_node, name);
+ if (!np)
+ return;
+
+ desc.name = name;
+ pdata->init_data = of_get_regulator_init_data(madera->dev, np, &desc);
+ of_property_read_u32(np, "regulator-active-discharge",
+ &pdata->active_discharge);
+}
+
+static void madera_prop_get_micbias_gen(struct madera *madera,
+ const char *name,
+ struct madera_micbias_pdata *pdata)
+{
+ struct device_node *np;
+ struct regulator_desc desc = { };
+
+ np = of_get_child_by_name(madera->dev->of_node, name);
+ if (!np)
+ return;
+
+ desc.name = name;
+ pdata->init_data = of_get_regulator_init_data(madera->dev, np, &desc);
+ pdata->ext_cap = of_property_read_bool(np, "wlf,ext-cap");
+ of_property_read_u32(np, "regulator-active-discharge",
+ &pdata->active_discharge);
+}
+
+static void madera_prop_get_micbias(struct madera *madera)
+{
+ struct madera_micbias_pdata *pdata;
+ char name[10];
+ int i, child;
+
+ for (i = madera_get_num_micbias(madera) - 1; i >= 0; --i) {
+ pdata = &madera->pdata.micbias[i];
+
+ snprintf(name, sizeof(name), "MICBIAS%d", i + 1);
+ madera_prop_get_micbias_gen(madera, name, pdata);
+
+ child = madera_get_num_childbias(madera, i + 1) - 1;
+ for (; child >= 0; --child) {
+ snprintf(name, sizeof(name), "MICBIAS%d%c",
+ i + 1, 'A' + child);
+ madera_prop_get_micbias_child(madera, name,
+ &pdata->pin[child]);
+ }
+ }
+}
+
+static void madera_configure_micbias(struct madera *madera)
+{
+ unsigned int num_micbias = madera_get_num_micbias(madera);
+ struct madera_micbias_pdata *pdata;
+ struct regulator_init_data *init_data;
+ unsigned int num_child_micbias;
+ unsigned int val, mask, reg;
+ int i, child, ret;
+
+ for (i = 0; i < num_micbias; ++i) {
+ pdata = &madera->pdata.micbias[i];
+
+ /* Configure the child micbias pins */
+ val = 0;
+ mask = 0;
+ num_child_micbias = madera_get_num_childbias(madera, i + 1);
+ for (child = 0; child < num_child_micbias; ++child) {
+ if (!pdata->pin[child].init_data)
+ continue;
+
+ mask |= MADERA_MICB1A_DISCH << (child * 4);
+ if (pdata->pin[child].active_discharge)
+ val |= MADERA_MICB1A_DISCH << (child * 4);
+ }
+
+ if (mask) {
+ reg = MADERA_MIC_BIAS_CTRL_5 + (i * 4);
+ ret = regmap_update_bits(madera->regmap, reg, mask, val);
+ if (ret)
+ dev_warn(madera->dev,
+ "Failed to write 0x%x (%d)\n",
+ reg, ret);
+
+ dev_dbg(madera->dev,
+ "Set MICBIAS_CTRL%d mask=0x%x val=0x%x\n",
+ i + 5, mask, val);
+ }
+
+ /* configure the parent */
+ init_data = pdata->init_data;
+ if (!init_data)
+ continue;
+
+ mask = MADERA_MICB1_LVL_MASK | MADERA_MICB1_EXT_CAP |
+ MADERA_MICB1_BYPASS | MADERA_MICB1_RATE;
+
+ if (!init_data->constraints.max_uV)
+ init_data->constraints.max_uV = 2800;
+
+ val = (init_data->constraints.max_uV - 1500000) / 100000;
+ val <<= MADERA_MICB1_LVL_SHIFT;
+
+ if (pdata->ext_cap)
+ val |= MADERA_MICB1_EXT_CAP;
+
+ /* if no child biases the discharge is set in the parent */
+ if (num_child_micbias == 0) {
+ mask |= MADERA_MICB1_DISCH;
+
+ if (pdata->active_discharge)
+ val |= MADERA_MICB1_DISCH;
+ }
+
+ if (init_data->constraints.soft_start)
+ val |= MADERA_MICB1_RATE;
+
+ if (init_data->constraints.valid_ops_mask &
+ REGULATOR_CHANGE_BYPASS)
+ val |= MADERA_MICB1_BYPASS;
+
+ reg = MADERA_MIC_BIAS_CTRL_1 + (i * 4);
+ ret = regmap_update_bits(madera->regmap, reg, mask, val);
+ if (ret)
+ dev_warn(madera->dev, "Failed to write 0x%x (%d)\n",
+ reg, ret);
+
+ dev_dbg(madera->dev, "Set MICBIAS_CTRL%d mask=0x%x val=0x%x\n",
+ i + 1, mask, val);
+ }
+}
+
+int madera_dev_init(struct madera *madera)
+{
+ struct device *dev = madera->dev;
+ const char *name;
+ unsigned int hwid;
+ int (*patch_fn)(struct madera *) = NULL;
+ const struct mfd_cell *mfd_devs;
+ int n_devs = 0;
+ int i, ret;
+
+ dev_set_drvdata(madera->dev, madera);
+ BLOCKING_INIT_NOTIFIER_HEAD(&madera->notifier);
+
+ if (dev_get_platdata(madera->dev)) {
+ memcpy(&madera->pdata, dev_get_platdata(madera->dev),
+ sizeof(madera->pdata));
+ }
+
+ ret = madera_get_reset_gpio(madera);
+ if (ret)
+ return ret;
+
+ madera_prop_get_micbias(madera);
+
+ regcache_cache_only(madera->regmap, true);
+ regcache_cache_only(madera->regmap_32bit, true);
+
+ for (i = 0; i < ARRAY_SIZE(madera_core_supplies); i++)
+ madera->core_supplies[i].supply = madera_core_supplies[i];
+
+ madera->num_core_supplies = ARRAY_SIZE(madera_core_supplies);
+
+ switch (madera->type) {
+ case CS47L35:
+ case CS47L90:
+ case CS47L91:
+ break;
+ case CS47L85:
+ case WM1840:
+ /* On these DCVDD could be supplied from the onboard LDO1 */
+ ret = mfd_add_devices(madera->dev, PLATFORM_DEVID_NONE,
+ madera_ldo1_devs,
+ ARRAY_SIZE(madera_ldo1_devs),
+ NULL, 0, NULL);
+ if (ret) {
+ dev_err(dev, "Failed to add LDO1 child: %d\n", ret);
+ return ret;
+ }
+ break;
+ default:
+ dev_err(madera->dev, "Unknown device type %d\n", madera->type);
+ return -ENODEV;
+ }
+
+ ret = devm_regulator_bulk_get(dev, madera->num_core_supplies,
+ madera->core_supplies);
+ if (ret) {
+ dev_err(dev, "Failed to request core supplies: %d\n", ret);
+ goto err_devs;
+ }
+
+ /*
+ * Don't use devres here because the only device we have to get
+ * against is the MFD device and DCVDD will likely be supplied by
+ * one of its children. Meaning that the regulator will be
+ * destroyed by the time devres calls regulator put.
+ */
+ madera->dcvdd = regulator_get_exclusive(madera->dev, "DCVDD");
+ if (IS_ERR(madera->dcvdd)) {
+ ret = PTR_ERR(madera->dcvdd);
+ dev_err(dev, "Failed to request DCVDD: %d\n", ret);
+ goto err_devs;
+ }
+
+ ret = regulator_bulk_enable(madera->num_core_supplies,
+ madera->core_supplies);
+ if (ret) {
+ dev_err(dev, "Failed to enable core supplies: %d\n", ret);
+ goto err_dcvdd;
+ }
+
+ ret = regulator_enable(madera->dcvdd);
+ if (ret) {
+ dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
+ goto err_enable;
+ }
+
+ madera_disable_hard_reset(madera);
+
+ regcache_cache_only(madera->regmap, false);
+ regcache_cache_only(madera->regmap_32bit, false);
+
+ /*
+ * Verify that this is a chip we know about before we
+ * starting doing any writes to its registers
+ */
+ ret = regmap_read(madera->regmap, MADERA_SOFTWARE_RESET, &hwid);
+ if (ret) {
+ dev_err(dev, "Failed to read ID register: %d\n", ret);
+ goto err_reset;
+ }
+
+ switch (hwid) {
+ case CS47L35_SILICON_ID:
+ case CS47L85_SILICON_ID:
+ case CS47L90_SILICON_ID:
+ break;
+ default:
+ dev_err(madera->dev, "Unknown device ID: %x\n", hwid);
+ ret = -EINVAL;
+ goto err_reset;
+ }
+
+ /* If we don't have a reset GPIO use a soft reset */
+ if (!madera->reset_gpio) {
+ ret = madera_soft_reset(madera);
+ if (ret)
+ goto err_reset;
+ }
+
+ ret = madera_wait_for_boot(madera);
+ if (ret) {
+ dev_err(madera->dev, "Device failed initial boot: %d\n", ret);
+ goto err_reset;
+ }
+
+ ret = regmap_read(madera->regmap, MADERA_HARDWARE_REVISION,
+ &madera->rev);
+ if (ret) {
+ dev_err(dev, "Failed to read revision register: %d\n", ret);
+ goto err_reset;
+ }
+ madera->rev &= MADERA_HW_REVISION_MASK;
+
+ name = madera_name_from_type(madera->type);
+
+ switch (hwid) {
+ case CS47L35_SILICON_ID:
+ if (IS_ENABLED(CONFIG_MFD_CS47L35)) {
+ switch (madera->type) {
+ case CS47L35:
+ patch_fn = cs47l35_patch;
+ mfd_devs = cs47l35_devs;
+ n_devs = ARRAY_SIZE(cs47l35_devs);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case CS47L85_SILICON_ID:
+ if (IS_ENABLED(CONFIG_MFD_CS47L85)) {
+ switch (madera->type) {
+ case CS47L85:
+ case WM1840:
+ patch_fn = cs47l85_patch;
+ mfd_devs = cs47l85_devs;
+ n_devs = ARRAY_SIZE(cs47l85_devs);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case CS47L90_SILICON_ID:
+ if (IS_ENABLED(CONFIG_MFD_CS47L90)) {
+ switch (madera->type) {
+ case CS47L90:
+ case CS47L91:
+ patch_fn = cs47l90_patch;
+ mfd_devs = cs47l90_devs;
+ n_devs = ARRAY_SIZE(cs47l90_devs);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (!n_devs) {
+ dev_err(madera->dev, "Device ID 0x%x not a %s\n", hwid, name);
+ ret = -ENODEV;
+ goto err_reset;
+ }
+
+ dev_info(dev, "%s silicon revision %d\n", name, madera->rev);
+
+ /* Apply hardware patch */
+ if (patch_fn) {
+ ret = patch_fn(madera);
+ if (ret) {
+ dev_err(madera->dev, "Failed to apply patch %d\n", ret);
+ goto err_reset;
+ }
+ }
+
+ /* Init 32k clock sourced from MCLK2 */
+ ret = regmap_update_bits(madera->regmap,
+ MADERA_CLOCK_32K_1,
+ MADERA_CLK_32K_ENA_MASK | MADERA_CLK_32K_SRC_MASK,
+ MADERA_CLK_32K_ENA | MADERA_32KZ_MCLK2);
+ if (ret) {
+ dev_err(madera->dev, "Failed to init 32k clock: %d\n", ret);
+ goto err_reset;
+ }
+
+ madera_configure_micbias(madera);
+
+ pm_runtime_set_active(madera->dev);
+ pm_runtime_enable(madera->dev);
+ pm_runtime_set_autosuspend_delay(madera->dev, 100);
+ pm_runtime_use_autosuspend(madera->dev);
+
+ ret = mfd_add_devices(madera->dev, PLATFORM_DEVID_NONE,
+ mfd_devs, n_devs,
+ NULL, 0, NULL);
+ if (ret) {
+ dev_err(madera->dev, "Failed to add subdevices: %d\n", ret);
+ goto err_pm_runtime;
+ }
+
+ return 0;
+
+err_pm_runtime:
+ pm_runtime_disable(madera->dev);
+err_reset:
+ madera_enable_hard_reset(madera);
+ regulator_disable(madera->dcvdd);
+err_enable:
+ regulator_bulk_disable(madera->num_core_supplies,
+ madera->core_supplies);
+err_dcvdd:
+ regulator_put(madera->dcvdd);
+err_devs:
+ mfd_remove_devices(dev);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(madera_dev_init);
+
+int madera_dev_exit(struct madera *madera)
+{
+ /* Prevent any IRQs being serviced while we clean up */
+ disable_irq(madera->irq);
+
+ /*
+ * DCVDD could be supplied by a child node, we must disable it before
+ * removing the children, and prevent PM runtime from turning it back on
+ */
+ pm_runtime_disable(madera->dev);
+
+ regulator_disable(madera->dcvdd);
+ regulator_put(madera->dcvdd);
+
+ mfd_remove_devices(madera->dev);
+ madera_enable_hard_reset(madera);
+
+ regulator_bulk_disable(madera->num_core_supplies,
+ madera->core_supplies);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(madera_dev_exit);
--- /dev/null
+/*
+ * MFD internals for Cirrus Logic Madera codecs
+ *
+ * Copyright 2015-2017 Cirrus Logic
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MADERA_CORE_H
+#define MADERA_CORE_H
+
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <linux/regmap.h>
+#include <linux/gpio/consumer.h>
+#include <linux/irqchip/irq-madera.h>
+#include <linux/mfd/madera/pdata.h>
+#include <linux/regulator/consumer.h>
+#include <sound/madera-pdata.h>
+
+enum madera_type {
+ CS47L35 = 1,
+ CS47L85 = 2,
+ CS47L90 = 3,
+ CS47L91 = 4,
+ WM1840 = 7,
+};
+
+#define MADERA_MAX_CORE_SUPPLIES 2
+#define MADERA_MAX_GPIOS 40
+
+#define CS47L35_NUM_GPIOS 16
+#define CS47L85_NUM_GPIOS 40
+#define CS47L90_NUM_GPIOS 38
+
+
+/* Notifier events */
+#define MADERA_NOTIFY_VOICE_TRIGGER 0x1
+#define MADERA_NOTIFY_HPDET 0x2
+#define MADERA_NOTIFY_MICDET 0x4
+
+/* GPIO Function Definitions */
+#define MADERA_GP_FN_ALTERNATE 0x00
+#define MADERA_GP_FN_GPIO 0x01
+#define MADERA_GP_FN_DSP_GPIO 0x02
+#define MADERA_GP_FN_IRQ1 0x03
+#define MADERA_GP_FN_IRQ2 0x04
+#define MADERA_GP_FN_FLL1_CLOCK 0x10
+#define MADERA_GP_FN_FLL2_CLOCK 0x11
+#define MADERA_GP_FN_FLL3_CLOCK 0x12
+#define MADERA_GP_FN_FLLAO_CLOCK 0x13
+#define MADERA_GP_FN_FLL1_LOCK 0x18
+#define MADERA_GP_FN_FLL2_LOCK 0x19
+#define MADERA_GP_FN_FLL3_LOCK 0x1A
+#define MADERA_GP_FN_FLLAO_LOCK 0x1B
+#define MADERA_GP_FN_OPCLK_OUT 0x40
+#define MADERA_GP_FN_OPCLK_ASYNC_OUT 0x41
+#define MADERA_GP_FN_PWM1 0x48
+#define MADERA_GP_FN_PWM2 0x49
+#define MADERA_GP_FN_SPDIF_OUT 0x4C
+#define MADERA_GP_FN_HEADPHONE_DET 0x50
+#define MADERA_GP_FN_MIC_DET 0x58
+#define MADERA_GP_FN_DRC1_SIGNAL_DETECT 0x80
+#define MADERA_GP_FN_DRC2_SIGNAL_DETECT 0x81
+#define MADERA_GP_FN_ASRC1_IN1_LOCK 0x88
+#define MADERA_GP_FN_ASRC1_IN2_LOCK 0x89
+#define MADERA_GP_FN_ASRC2_IN1_LOCK 0x8A
+#define MADERA_GP_FN_ASRC2_IN2_LOCK 0x8B
+#define MADERA_GP_FN_DSP_IRQ1 0xA0
+#define MADERA_GP_FN_DSP_IRQ2 0xA1
+#define MADERA_GP_FN_DSP_IRQ3 0xA2
+#define MADERA_GP_FN_DSP_IRQ4 0xA3
+#define MADERA_GP_FN_DSP_IRQ5 0xA4
+#define MADERA_GP_FN_DSP_IRQ6 0xA5
+#define MADERA_GP_FN_DSP_IRQ7 0xA6
+#define MADERA_GP_FN_DSP_IRQ8 0xA7
+#define MADERA_GP_FN_DSP_IRQ9 0xA8
+#define MADERA_GP_FN_DSP_IRQ10 0xA9
+#define MADERA_GP_FN_DSP_IRQ11 0xAA
+#define MADERA_GP_FN_DSP_IRQ12 0xAB
+#define MADERA_GP_FN_DSP_IRQ13 0xAC
+#define MADERA_GP_FN_DSP_IRQ14 0xAD
+#define MADERA_GP_FN_DSP_IRQ15 0xAE
+#define MADERA_GP_FN_DSP_IRQ16 0xAF
+#define MADERA_GP_FN_HPOUT1L_SC 0xB0
+#define MADERA_GP_FN_HPOUT1R_SC 0xB1
+#define MADERA_GP_FN_HPOUT2L_SC 0xB2
+#define MADERA_GP_FN_HPOUT2R_SC 0xB3
+#define MADERA_GP_FN_HPOUT3L_SC 0xB4
+#define MADERA_GP_FN_HPOUT4R_SC 0xB5
+#define MADERA_GP_FN_SPKOUTL_SC 0xB6
+#define MADERA_GP_FN_SPKOUTR_SC 0xB7
+#define MADERA_GP_FN_HPOUT1L_ENA 0xC0
+#define MADERA_GP_FN_HPOUT1R_ENA 0xC1
+#define MADERA_GP_FN_HPOUT2L_ENA 0xC2
+#define MADERA_GP_FN_HPOUT2R_ENA 0xC3
+#define MADERA_GP_FN_HPOUT3L_ENA 0xC4
+#define MADERA_GP_FN_HPOUT4R_ENA 0xC5
+#define MADERA_GP_FN_SPKOUTL_ENA 0xC6
+#define MADERA_GP_FN_SPKOUTR_ENA 0xC7
+#define MADERA_GP_FN_HPOUT1L_DIS 0xD0
+#define MADERA_GP_FN_HPOUT1R_DIS 0xD1
+#define MADERA_GP_FN_HPOUT2L_DIS 0xD2
+#define MADERA_GP_FN_HPOUT2R_DIS 0xD3
+#define MADERA_GP_FN_HPOUT3L_DIS 0xD4
+#define MADERA_GP_FN_HPOUT4R_DIS 0xD5
+#define MADERA_GP_FN_SPKOUTL_DIS 0xD6
+#define MADERA_GP_FN_SPKOUTR_DIS 0xD7
+#define MADERA_GP_FN_SPK_SHUTDOWN 0xE0
+#define MADERA_GP_FN_SPK_OVH_SHUTDOWN 0xE1
+#define MADERA_GP_FN_SPK_OVH_WARN 0xE2
+#define MADERA_GP_FN_TIMER1_STATUS 0x140
+#define MADERA_GP_FN_TIMER2_STATUS 0x141
+#define MADERA_GP_FN_TIMER3_STATUS 0x142
+#define MADERA_GP_FN_TIMER4_STATUS 0x143
+#define MADERA_GP_FN_TIMER5_STATUS 0x144
+#define MADERA_GP_FN_TIMER6_STATUS 0x145
+#define MADERA_GP_FN_TIMER7_STATUS 0x146
+#define MADERA_GP_FN_TIMER8_STATUS 0x147
+#define MADERA_GP_FN_EVENTLOG1_FIFO_STS 0x150
+#define MADERA_GP_FN_EVENTLOG2_FIFO_STS 0x151
+#define MADERA_GP_FN_EVENTLOG3_FIFO_STS 0x152
+#define MADERA_GP_FN_EVENTLOG4_FIFO_STS 0x153
+#define MADERA_GP_FN_EVENTLOG5_FIFO_STS 0x154
+#define MADERA_GP_FN_EVENTLOG6_FIFO_STS 0x155
+#define MADERA_GP_FN_EVENTLOG7_FIFO_STS 0x156
+#define MADERA_GP_FN_EVENTLOG8_FIFO_STS 0x157
+
+struct snd_soc_dapm_context;
+
+/*
+ * struct madera
+ *
+ * This should not be used by anything except child drivers of the Madera MFD
+ */
+struct madera {
+ struct regmap *regmap;
+ struct regmap *regmap_32bit;
+
+ struct device *dev;
+
+ enum madera_type type;
+ unsigned int rev;
+
+ struct gpio_desc *reset_gpio;
+
+ int num_core_supplies;
+ struct regulator_bulk_data core_supplies[MADERA_MAX_CORE_SUPPLIES];
+ struct regulator *dcvdd;
+ bool internal_dcvdd;
+
+ struct madera_pdata pdata;
+
+ struct device *irq_dev;
+ int irq;
+
+ unsigned int out_clamp[MADERA_MAX_OUTPUT];
+ unsigned int out_shorted[MADERA_MAX_OUTPUT];
+ unsigned int hp_ena;
+
+ struct snd_soc_dapm_context *dapm;
+
+ struct blocking_notifier_head notifier;
+};
+
+unsigned int madera_get_num_micbias(struct madera *madera);
+unsigned int madera_get_num_childbias(struct madera *madera,
+ unsigned int micbias);
+
+const char *madera_name_from_type(enum madera_type type);
+
+static inline int madera_call_notifiers(struct madera *madera,
+ unsigned long event,
+ void *data)
+{
+ return blocking_notifier_call_chain(&madera->notifier, event, data);
+}
+#endif
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff