1322 lines
32 KiB
C
1322 lines
32 KiB
C
/*
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* Arizona core driver
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*
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* Copyright 2012 Wolfson Microelectronics plc
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/gpio.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <linux/regulator/machine.h>
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#include <linux/slab.h>
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#include <linux/mfd/arizona/core.h>
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#include <linux/mfd/arizona/registers.h>
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#include "arizona.h"
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static const char *wm5102_core_supplies[] = {
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"AVDD",
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"DBVDD1",
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};
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int arizona_clk32k_enable(struct arizona *arizona)
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{
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int ret = 0;
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mutex_lock(&arizona->clk_lock);
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arizona->clk32k_ref++;
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if (arizona->clk32k_ref == 1) {
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switch (arizona->pdata.clk32k_src) {
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case ARIZONA_32KZ_MCLK1:
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ret = pm_runtime_get_sync(arizona->dev);
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if (ret != 0)
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goto out;
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break;
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}
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ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
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ARIZONA_CLK_32K_ENA,
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ARIZONA_CLK_32K_ENA);
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}
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out:
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if (ret != 0)
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arizona->clk32k_ref--;
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mutex_unlock(&arizona->clk_lock);
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return ret;
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}
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EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
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int arizona_clk32k_disable(struct arizona *arizona)
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{
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int ret = 0;
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mutex_lock(&arizona->clk_lock);
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BUG_ON(arizona->clk32k_ref <= 0);
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arizona->clk32k_ref--;
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if (arizona->clk32k_ref == 0) {
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regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
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ARIZONA_CLK_32K_ENA, 0);
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switch (arizona->pdata.clk32k_src) {
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case ARIZONA_32KZ_MCLK1:
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pm_runtime_put_sync(arizona->dev);
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break;
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}
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}
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mutex_unlock(&arizona->clk_lock);
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return ret;
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}
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EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
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static irqreturn_t arizona_clkgen_err(int irq, void *data)
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{
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struct arizona *arizona = data;
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dev_err(arizona->dev, "CLKGEN error\n");
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return IRQ_HANDLED;
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}
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static irqreturn_t arizona_underclocked(int irq, void *data)
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{
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struct arizona *arizona = data;
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unsigned int val;
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int ret;
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ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
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&val);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to read underclock status: %d\n",
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ret);
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return IRQ_NONE;
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}
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if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "AIF3 underclocked\n");
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if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "AIF2 underclocked\n");
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if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "AIF1 underclocked\n");
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if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC3 underclocked\n");
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if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC2 underclocked\n");
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if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC1 underclocked\n");
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if (val & ARIZONA_FX_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "FX underclocked\n");
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if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "ASRC underclocked\n");
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if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "DAC underclocked\n");
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if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "ADC underclocked\n");
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if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
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dev_err(arizona->dev, "Mixer dropped sample\n");
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return IRQ_HANDLED;
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}
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static irqreturn_t arizona_overclocked(int irq, void *data)
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{
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struct arizona *arizona = data;
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unsigned int val[2];
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int ret;
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ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
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&val[0], 2);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to read overclock status: %d\n",
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ret);
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return IRQ_NONE;
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}
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if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
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dev_err(arizona->dev, "PWM overclocked\n");
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if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
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dev_err(arizona->dev, "FX core overclocked\n");
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if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
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dev_err(arizona->dev, "DAC SYS overclocked\n");
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if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
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dev_err(arizona->dev, "DAC WARP overclocked\n");
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if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ADC overclocked\n");
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if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
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dev_err(arizona->dev, "Mixer overclocked\n");
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if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "AIF3 overclocked\n");
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if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "AIF2 overclocked\n");
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if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "AIF1 overclocked\n");
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if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
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dev_err(arizona->dev, "Pad control overclocked\n");
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if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
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dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
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if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "Slimbus async overclocked\n");
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if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
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dev_err(arizona->dev, "Slimbus sync overclocked\n");
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if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ASRC async system overclocked\n");
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if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ASRC async WARP overclocked\n");
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if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ASRC sync system overclocked\n");
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if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
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if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
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dev_err(arizona->dev, "DSP1 overclocked\n");
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if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC3 overclocked\n");
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if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC2 overclocked\n");
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if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
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dev_err(arizona->dev, "ISRC1 overclocked\n");
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return IRQ_HANDLED;
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}
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static int arizona_poll_reg(struct arizona *arizona,
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int timeout, unsigned int reg,
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unsigned int mask, unsigned int target)
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{
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unsigned int val = 0;
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int ret, i;
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for (i = 0; i < timeout; i++) {
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ret = regmap_read(arizona->regmap, reg, &val);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to read reg %u: %d\n",
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reg, ret);
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continue;
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}
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if ((val & mask) == target)
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return 0;
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msleep(1);
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}
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dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
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return -ETIMEDOUT;
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}
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static int arizona_wait_for_boot(struct arizona *arizona)
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{
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int ret;
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/*
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* We can't use an interrupt as we need to runtime resume to do so,
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* we won't race with the interrupt handler as it'll be blocked on
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* runtime resume.
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*/
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ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
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ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
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if (!ret)
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regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
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ARIZONA_BOOT_DONE_STS);
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pm_runtime_mark_last_busy(arizona->dev);
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return ret;
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}
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static inline void arizona_enable_reset(struct arizona *arizona)
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{
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if (arizona->pdata.reset)
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gpio_set_value_cansleep(arizona->pdata.reset, 0);
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}
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static void arizona_disable_reset(struct arizona *arizona)
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{
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if (arizona->pdata.reset) {
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switch (arizona->type) {
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case WM5110:
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case WM8280:
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/* Meet requirements for minimum reset duration */
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msleep(5);
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break;
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default:
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break;
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}
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gpio_set_value_cansleep(arizona->pdata.reset, 1);
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msleep(1);
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}
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}
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struct arizona_sysclk_state {
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unsigned int fll;
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unsigned int sysclk;
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};
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static int arizona_enable_freerun_sysclk(struct arizona *arizona,
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struct arizona_sysclk_state *state)
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{
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int ret, err;
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/* Cache existing FLL and SYSCLK settings */
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ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
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if (ret) {
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dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
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ret);
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return ret;
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}
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ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
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&state->sysclk);
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if (ret) {
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dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
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ret);
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return ret;
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}
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/* Start up SYSCLK using the FLL in free running mode */
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ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
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ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
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if (ret) {
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dev_err(arizona->dev,
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"Failed to start FLL in freerunning mode: %d\n",
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ret);
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return ret;
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}
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ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
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ARIZONA_FLL1_CLOCK_OK_STS,
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ARIZONA_FLL1_CLOCK_OK_STS);
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if (ret) {
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ret = -ETIMEDOUT;
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goto err_fll;
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}
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ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
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if (ret) {
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dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
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goto err_fll;
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}
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return 0;
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err_fll:
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err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
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if (err)
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dev_err(arizona->dev,
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"Failed to re-apply old FLL settings: %d\n", err);
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return ret;
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}
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static int arizona_disable_freerun_sysclk(struct arizona *arizona,
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struct arizona_sysclk_state *state)
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{
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int ret;
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ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
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state->sysclk);
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if (ret) {
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dev_err(arizona->dev,
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"Failed to re-apply old SYSCLK settings: %d\n", ret);
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return ret;
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}
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ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
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if (ret) {
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dev_err(arizona->dev,
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"Failed to re-apply old FLL settings: %d\n", ret);
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return ret;
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}
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return 0;
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}
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static int wm5102_apply_hardware_patch(struct arizona *arizona)
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{
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struct arizona_sysclk_state state;
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int err, ret;
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ret = arizona_enable_freerun_sysclk(arizona, &state);
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if (ret)
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return ret;
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/* Start the write sequencer and wait for it to finish */
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ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
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ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
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if (ret) {
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dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
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ret);
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goto err;
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}
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ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
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ARIZONA_WSEQ_BUSY, 0);
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if (ret) {
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regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
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ARIZONA_WSEQ_ABORT);
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ret = -ETIMEDOUT;
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}
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err:
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err = arizona_disable_freerun_sysclk(arizona, &state);
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return ret ?: err;
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}
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/*
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* Register patch to some of the CODECs internal write sequences
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* to ensure a clean exit from the low power sleep state.
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*/
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static const struct reg_default wm5110_sleep_patch[] = {
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{ 0x337A, 0xC100 },
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{ 0x337B, 0x0041 },
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{ 0x3300, 0xA210 },
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{ 0x3301, 0x050C },
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};
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static int wm5110_apply_sleep_patch(struct arizona *arizona)
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{
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struct arizona_sysclk_state state;
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int err, ret;
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ret = arizona_enable_freerun_sysclk(arizona, &state);
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if (ret)
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return ret;
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ret = regmap_multi_reg_write_bypassed(arizona->regmap,
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wm5110_sleep_patch,
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ARRAY_SIZE(wm5110_sleep_patch));
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err = arizona_disable_freerun_sysclk(arizona, &state);
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return ret ?: err;
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}
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static int wm5102_clear_write_sequencer(struct arizona *arizona)
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{
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int ret;
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ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
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0x0);
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if (ret) {
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dev_err(arizona->dev,
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"Failed to clear write sequencer state: %d\n", ret);
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return ret;
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}
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arizona_enable_reset(arizona);
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regulator_disable(arizona->dcvdd);
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msleep(20);
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ret = regulator_enable(arizona->dcvdd);
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if (ret) {
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dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
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return ret;
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}
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arizona_disable_reset(arizona);
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return 0;
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}
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#ifdef CONFIG_PM
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static int arizona_runtime_resume(struct device *dev)
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{
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struct arizona *arizona = dev_get_drvdata(dev);
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int ret;
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dev_dbg(arizona->dev, "Leaving AoD mode\n");
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if (arizona->has_fully_powered_off) {
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dev_dbg(arizona->dev, "Re-enabling core supplies\n");
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ret = regulator_bulk_enable(arizona->num_core_supplies,
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arizona->core_supplies);
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if (ret) {
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dev_err(dev, "Failed to enable core supplies: %d\n",
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ret);
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return ret;
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}
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}
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ret = regulator_enable(arizona->dcvdd);
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
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if (arizona->has_fully_powered_off)
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regulator_bulk_disable(arizona->num_core_supplies,
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arizona->core_supplies);
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return ret;
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}
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if (arizona->has_fully_powered_off) {
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arizona_disable_reset(arizona);
|
|
enable_irq(arizona->irq);
|
|
arizona->has_fully_powered_off = false;
|
|
}
|
|
|
|
regcache_cache_only(arizona->regmap, false);
|
|
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
if (arizona->external_dcvdd) {
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ISOLATION_CONTROL,
|
|
ARIZONA_ISOLATE_DCVDD1, 0);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev,
|
|
"Failed to connect DCVDD: %d\n", ret);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
ret = wm5102_patch(arizona);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to apply patch: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
|
|
ret = wm5102_apply_hardware_patch(arizona);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to apply hardware patch: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
break;
|
|
case WM5110:
|
|
case WM8280:
|
|
ret = arizona_wait_for_boot(arizona);
|
|
if (ret)
|
|
goto err;
|
|
|
|
if (arizona->external_dcvdd) {
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ISOLATION_CONTROL,
|
|
ARIZONA_ISOLATE_DCVDD1, 0);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to connect DCVDD: %d\n", ret);
|
|
goto err;
|
|
}
|
|
} else {
|
|
/*
|
|
* As this is only called for the internal regulator
|
|
* (where we know voltage ranges available) it is ok
|
|
* to request an exact range.
|
|
*/
|
|
ret = regulator_set_voltage(arizona->dcvdd,
|
|
1200000, 1200000);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev,
|
|
"Failed to set resume voltage: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
ret = wm5110_apply_sleep_patch(arizona);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to re-apply sleep patch: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
break;
|
|
default:
|
|
ret = arizona_wait_for_boot(arizona);
|
|
if (ret != 0) {
|
|
goto err;
|
|
}
|
|
|
|
if (arizona->external_dcvdd) {
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ISOLATION_CONTROL,
|
|
ARIZONA_ISOLATE_DCVDD1, 0);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev,
|
|
"Failed to connect DCVDD: %d\n", ret);
|
|
goto err;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
ret = regcache_sync(arizona->regmap);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to restore register cache\n");
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
regcache_cache_only(arizona->regmap, true);
|
|
regulator_disable(arizona->dcvdd);
|
|
return ret;
|
|
}
|
|
|
|
static int arizona_runtime_suspend(struct device *dev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(dev);
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
dev_dbg(arizona->dev, "Entering AoD mode\n");
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
|
|
if (ret) {
|
|
dev_err(dev, "Failed to check jack det status: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (arizona->external_dcvdd) {
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ISOLATION_CONTROL,
|
|
ARIZONA_ISOLATE_DCVDD1,
|
|
ARIZONA_ISOLATE_DCVDD1);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
switch (arizona->type) {
|
|
case WM5110:
|
|
case WM8280:
|
|
if (arizona->external_dcvdd)
|
|
break;
|
|
|
|
/*
|
|
* As this is only called for the internal regulator
|
|
* (where we know voltage ranges available) it is ok
|
|
* to request an exact range.
|
|
*/
|
|
ret = regulator_set_voltage(arizona->dcvdd, 1175000, 1175000);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev,
|
|
"Failed to set suspend voltage: %d\n", ret);
|
|
return ret;
|
|
}
|
|
break;
|
|
case WM5102:
|
|
if (!(val & ARIZONA_JD1_ENA)) {
|
|
ret = regmap_write(arizona->regmap,
|
|
ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to clear write sequencer: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
regcache_cache_only(arizona->regmap, true);
|
|
regcache_mark_dirty(arizona->regmap);
|
|
regulator_disable(arizona->dcvdd);
|
|
|
|
/* Allow us to completely power down if no jack detection */
|
|
if (!(val & ARIZONA_JD1_ENA)) {
|
|
dev_dbg(arizona->dev, "Fully powering off\n");
|
|
|
|
arizona->has_fully_powered_off = true;
|
|
|
|
disable_irq(arizona->irq);
|
|
arizona_enable_reset(arizona);
|
|
regulator_bulk_disable(arizona->num_core_supplies,
|
|
arizona->core_supplies);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int arizona_suspend(struct device *dev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(dev);
|
|
|
|
dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
|
|
disable_irq(arizona->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arizona_suspend_late(struct device *dev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(dev);
|
|
|
|
dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
|
|
enable_irq(arizona->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arizona_resume_noirq(struct device *dev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(dev);
|
|
|
|
dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
|
|
disable_irq(arizona->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int arizona_resume(struct device *dev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(dev);
|
|
|
|
dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
|
|
enable_irq(arizona->irq);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
const struct dev_pm_ops arizona_pm_ops = {
|
|
SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
|
|
arizona_runtime_resume,
|
|
NULL)
|
|
SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
|
|
#ifdef CONFIG_PM_SLEEP
|
|
.suspend_late = arizona_suspend_late,
|
|
.resume_noirq = arizona_resume_noirq,
|
|
#endif
|
|
};
|
|
EXPORT_SYMBOL_GPL(arizona_pm_ops);
|
|
|
|
#ifdef CONFIG_OF
|
|
unsigned long arizona_of_get_type(struct device *dev)
|
|
{
|
|
const struct of_device_id *id = of_match_device(arizona_of_match, dev);
|
|
|
|
if (id)
|
|
return (unsigned long)id->data;
|
|
else
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(arizona_of_get_type);
|
|
|
|
int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
|
|
bool mandatory)
|
|
{
|
|
int gpio;
|
|
|
|
gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0);
|
|
if (gpio < 0) {
|
|
if (mandatory)
|
|
dev_err(arizona->dev,
|
|
"Mandatory DT gpio %s missing/malformed: %d\n",
|
|
prop, gpio);
|
|
|
|
gpio = 0;
|
|
}
|
|
|
|
return gpio;
|
|
}
|
|
EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);
|
|
|
|
static int arizona_of_get_core_pdata(struct arizona *arizona)
|
|
{
|
|
struct arizona_pdata *pdata = &arizona->pdata;
|
|
struct property *prop;
|
|
const __be32 *cur;
|
|
u32 val;
|
|
int ret, i;
|
|
int count = 0;
|
|
|
|
pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);
|
|
|
|
ret = of_property_read_u32_array(arizona->dev->of_node,
|
|
"wlf,gpio-defaults",
|
|
arizona->pdata.gpio_defaults,
|
|
ARRAY_SIZE(arizona->pdata.gpio_defaults));
|
|
if (ret >= 0) {
|
|
/*
|
|
* All values are literal except out of range values
|
|
* which are chip default, translate into platform
|
|
* data which uses 0 as chip default and out of range
|
|
* as zero.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
|
|
if (arizona->pdata.gpio_defaults[i] > 0xffff)
|
|
arizona->pdata.gpio_defaults[i] = 0;
|
|
else if (arizona->pdata.gpio_defaults[i] == 0)
|
|
arizona->pdata.gpio_defaults[i] = 0x10000;
|
|
}
|
|
} else {
|
|
dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
|
|
ret);
|
|
}
|
|
|
|
of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop,
|
|
cur, val) {
|
|
if (count == ARRAY_SIZE(arizona->pdata.inmode))
|
|
break;
|
|
|
|
arizona->pdata.inmode[count] = val;
|
|
count++;
|
|
}
|
|
|
|
count = 0;
|
|
of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
|
|
cur, val) {
|
|
if (count == ARRAY_SIZE(arizona->pdata.dmic_ref))
|
|
break;
|
|
|
|
arizona->pdata.dmic_ref[count] = val;
|
|
count++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct of_device_id arizona_of_match[] = {
|
|
{ .compatible = "wlf,wm5102", .data = (void *)WM5102 },
|
|
{ .compatible = "wlf,wm5110", .data = (void *)WM5110 },
|
|
{ .compatible = "wlf,wm8280", .data = (void *)WM8280 },
|
|
{ .compatible = "wlf,wm8997", .data = (void *)WM8997 },
|
|
{},
|
|
};
|
|
EXPORT_SYMBOL_GPL(arizona_of_match);
|
|
#else
|
|
static inline int arizona_of_get_core_pdata(struct arizona *arizona)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static const struct mfd_cell early_devs[] = {
|
|
{ .name = "arizona-ldo1" },
|
|
};
|
|
|
|
static const char *wm5102_supplies[] = {
|
|
"MICVDD",
|
|
"DBVDD2",
|
|
"DBVDD3",
|
|
"CPVDD",
|
|
"SPKVDDL",
|
|
"SPKVDDR",
|
|
};
|
|
|
|
static const struct mfd_cell wm5102_devs[] = {
|
|
{ .name = "arizona-micsupp" },
|
|
{
|
|
.name = "arizona-extcon",
|
|
.parent_supplies = wm5102_supplies,
|
|
.num_parent_supplies = 1, /* We only need MICVDD */
|
|
},
|
|
{ .name = "arizona-gpio" },
|
|
{ .name = "arizona-haptics" },
|
|
{ .name = "arizona-pwm" },
|
|
{
|
|
.name = "wm5102-codec",
|
|
.parent_supplies = wm5102_supplies,
|
|
.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
|
|
},
|
|
};
|
|
|
|
static const struct mfd_cell wm5110_devs[] = {
|
|
{ .name = "arizona-micsupp" },
|
|
{
|
|
.name = "arizona-extcon",
|
|
.parent_supplies = wm5102_supplies,
|
|
.num_parent_supplies = 1, /* We only need MICVDD */
|
|
},
|
|
{ .name = "arizona-gpio" },
|
|
{ .name = "arizona-haptics" },
|
|
{ .name = "arizona-pwm" },
|
|
{
|
|
.name = "wm5110-codec",
|
|
.parent_supplies = wm5102_supplies,
|
|
.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
|
|
},
|
|
};
|
|
|
|
static const char *wm8997_supplies[] = {
|
|
"MICVDD",
|
|
"DBVDD2",
|
|
"CPVDD",
|
|
"SPKVDD",
|
|
};
|
|
|
|
static const struct mfd_cell wm8997_devs[] = {
|
|
{ .name = "arizona-micsupp" },
|
|
{
|
|
.name = "arizona-extcon",
|
|
.parent_supplies = wm8997_supplies,
|
|
.num_parent_supplies = 1, /* We only need MICVDD */
|
|
},
|
|
{ .name = "arizona-gpio" },
|
|
{ .name = "arizona-haptics" },
|
|
{ .name = "arizona-pwm" },
|
|
{
|
|
.name = "wm8997-codec",
|
|
.parent_supplies = wm8997_supplies,
|
|
.num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
|
|
},
|
|
};
|
|
|
|
int arizona_dev_init(struct arizona *arizona)
|
|
{
|
|
struct device *dev = arizona->dev;
|
|
const char *type_name;
|
|
unsigned int reg, val;
|
|
int (*apply_patch)(struct arizona *) = NULL;
|
|
int ret, i;
|
|
|
|
dev_set_drvdata(arizona->dev, arizona);
|
|
mutex_init(&arizona->clk_lock);
|
|
|
|
if (dev_get_platdata(arizona->dev))
|
|
memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
|
|
sizeof(arizona->pdata));
|
|
else
|
|
arizona_of_get_core_pdata(arizona);
|
|
|
|
regcache_cache_only(arizona->regmap, true);
|
|
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
case WM5110:
|
|
case WM8280:
|
|
case WM8997:
|
|
for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
|
|
arizona->core_supplies[i].supply
|
|
= wm5102_core_supplies[i];
|
|
arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
|
|
break;
|
|
default:
|
|
dev_err(arizona->dev, "Unknown device type %d\n",
|
|
arizona->type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Mark DCVDD as external, LDO1 driver will clear if internal */
|
|
arizona->external_dcvdd = true;
|
|
|
|
ret = mfd_add_devices(arizona->dev, -1, early_devs,
|
|
ARRAY_SIZE(early_devs), NULL, 0, NULL);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to add early children: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
|
|
arizona->core_supplies);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to request core supplies: %d\n",
|
|
ret);
|
|
goto err_early;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
|
|
if (IS_ERR(arizona->dcvdd)) {
|
|
ret = PTR_ERR(arizona->dcvdd);
|
|
dev_err(dev, "Failed to request DCVDD: %d\n", ret);
|
|
goto err_early;
|
|
}
|
|
|
|
if (arizona->pdata.reset) {
|
|
/* Start out with /RESET low to put the chip into reset */
|
|
ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset,
|
|
GPIOF_DIR_OUT | GPIOF_INIT_LOW,
|
|
"arizona /RESET");
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to request /RESET: %d\n", ret);
|
|
goto err_dcvdd;
|
|
}
|
|
}
|
|
|
|
ret = regulator_bulk_enable(arizona->num_core_supplies,
|
|
arizona->core_supplies);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to enable core supplies: %d\n",
|
|
ret);
|
|
goto err_dcvdd;
|
|
}
|
|
|
|
ret = regulator_enable(arizona->dcvdd);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
|
|
goto err_enable;
|
|
}
|
|
|
|
arizona_disable_reset(arizona);
|
|
|
|
regcache_cache_only(arizona->regmap, false);
|
|
|
|
/* Verify that this is a chip we know about */
|
|
ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to read ID register: %d\n", ret);
|
|
goto err_reset;
|
|
}
|
|
|
|
switch (reg) {
|
|
case 0x5102:
|
|
case 0x5110:
|
|
case 0x8997:
|
|
break;
|
|
default:
|
|
dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
|
|
goto err_reset;
|
|
}
|
|
|
|
/* If we have a /RESET GPIO we'll already be reset */
|
|
if (!arizona->pdata.reset) {
|
|
ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to reset device: %d\n", ret);
|
|
goto err_reset;
|
|
}
|
|
|
|
msleep(1);
|
|
}
|
|
|
|
/* Ensure device startup is complete */
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
ret = regmap_read(arizona->regmap,
|
|
ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
|
|
if (ret) {
|
|
dev_err(dev,
|
|
"Failed to check write sequencer state: %d\n",
|
|
ret);
|
|
} else if (val & 0x01) {
|
|
ret = wm5102_clear_write_sequencer(arizona);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = arizona_wait_for_boot(arizona);
|
|
if (ret) {
|
|
dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
|
|
goto err_reset;
|
|
}
|
|
|
|
/* Read the device ID information & do device specific stuff */
|
|
ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to read ID register: %d\n", ret);
|
|
goto err_reset;
|
|
}
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
|
|
&arizona->rev);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to read revision register: %d\n", ret);
|
|
goto err_reset;
|
|
}
|
|
arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
|
|
|
|
switch (reg) {
|
|
#ifdef CONFIG_MFD_WM5102
|
|
case 0x5102:
|
|
type_name = "WM5102";
|
|
if (arizona->type != WM5102) {
|
|
dev_err(arizona->dev, "WM5102 registered as %d\n",
|
|
arizona->type);
|
|
arizona->type = WM5102;
|
|
}
|
|
apply_patch = wm5102_patch;
|
|
arizona->rev &= 0x7;
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_MFD_WM5110
|
|
case 0x5110:
|
|
switch (arizona->type) {
|
|
case WM5110:
|
|
type_name = "WM5110";
|
|
break;
|
|
case WM8280:
|
|
type_name = "WM8280";
|
|
break;
|
|
default:
|
|
type_name = "WM5110";
|
|
dev_err(arizona->dev, "WM5110 registered as %d\n",
|
|
arizona->type);
|
|
arizona->type = WM5110;
|
|
break;
|
|
}
|
|
apply_patch = wm5110_patch;
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_MFD_WM8997
|
|
case 0x8997:
|
|
type_name = "WM8997";
|
|
if (arizona->type != WM8997) {
|
|
dev_err(arizona->dev, "WM8997 registered as %d\n",
|
|
arizona->type);
|
|
arizona->type = WM8997;
|
|
}
|
|
apply_patch = wm8997_patch;
|
|
break;
|
|
#endif
|
|
default:
|
|
dev_err(arizona->dev, "Unknown device ID %x\n", reg);
|
|
goto err_reset;
|
|
}
|
|
|
|
dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
|
|
|
|
if (apply_patch) {
|
|
ret = apply_patch(arizona);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to apply patch: %d\n",
|
|
ret);
|
|
goto err_reset;
|
|
}
|
|
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
ret = wm5102_apply_hardware_patch(arizona);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to apply hardware patch: %d\n",
|
|
ret);
|
|
goto err_reset;
|
|
}
|
|
break;
|
|
case WM5110:
|
|
case WM8280:
|
|
ret = wm5110_apply_sleep_patch(arizona);
|
|
if (ret) {
|
|
dev_err(arizona->dev,
|
|
"Failed to apply sleep patch: %d\n",
|
|
ret);
|
|
goto err_reset;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
|
|
if (!arizona->pdata.gpio_defaults[i])
|
|
continue;
|
|
|
|
regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
|
|
arizona->pdata.gpio_defaults[i]);
|
|
}
|
|
|
|
pm_runtime_set_autosuspend_delay(arizona->dev, 100);
|
|
pm_runtime_use_autosuspend(arizona->dev);
|
|
pm_runtime_enable(arizona->dev);
|
|
|
|
/* Chip default */
|
|
if (!arizona->pdata.clk32k_src)
|
|
arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
|
|
|
|
switch (arizona->pdata.clk32k_src) {
|
|
case ARIZONA_32KZ_MCLK1:
|
|
case ARIZONA_32KZ_MCLK2:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
|
|
ARIZONA_CLK_32K_SRC_MASK,
|
|
arizona->pdata.clk32k_src - 1);
|
|
arizona_clk32k_enable(arizona);
|
|
break;
|
|
case ARIZONA_32KZ_NONE:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
|
|
ARIZONA_CLK_32K_SRC_MASK, 2);
|
|
break;
|
|
default:
|
|
dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
|
|
arizona->pdata.clk32k_src);
|
|
ret = -EINVAL;
|
|
goto err_reset;
|
|
}
|
|
|
|
for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
|
|
if (!arizona->pdata.micbias[i].mV &&
|
|
!arizona->pdata.micbias[i].bypass)
|
|
continue;
|
|
|
|
/* Apply default for bypass mode */
|
|
if (!arizona->pdata.micbias[i].mV)
|
|
arizona->pdata.micbias[i].mV = 2800;
|
|
|
|
val = (arizona->pdata.micbias[i].mV - 1500) / 100;
|
|
|
|
val <<= ARIZONA_MICB1_LVL_SHIFT;
|
|
|
|
if (arizona->pdata.micbias[i].ext_cap)
|
|
val |= ARIZONA_MICB1_EXT_CAP;
|
|
|
|
if (arizona->pdata.micbias[i].discharge)
|
|
val |= ARIZONA_MICB1_DISCH;
|
|
|
|
if (arizona->pdata.micbias[i].soft_start)
|
|
val |= ARIZONA_MICB1_RATE;
|
|
|
|
if (arizona->pdata.micbias[i].bypass)
|
|
val |= ARIZONA_MICB1_BYPASS;
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MIC_BIAS_CTRL_1 + i,
|
|
ARIZONA_MICB1_LVL_MASK |
|
|
ARIZONA_MICB1_EXT_CAP |
|
|
ARIZONA_MICB1_DISCH |
|
|
ARIZONA_MICB1_BYPASS |
|
|
ARIZONA_MICB1_RATE, val);
|
|
}
|
|
|
|
for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
|
|
/* Default for both is 0 so noop with defaults */
|
|
val = arizona->pdata.dmic_ref[i]
|
|
<< ARIZONA_IN1_DMIC_SUP_SHIFT;
|
|
if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
|
|
val |= 1 << ARIZONA_IN1_MODE_SHIFT;
|
|
if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
|
|
val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_IN1L_CONTROL + (i * 8),
|
|
ARIZONA_IN1_DMIC_SUP_MASK |
|
|
ARIZONA_IN1_MODE_MASK |
|
|
ARIZONA_IN1_SINGLE_ENDED_MASK, val);
|
|
}
|
|
|
|
for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
|
|
/* Default is 0 so noop with defaults */
|
|
if (arizona->pdata.out_mono[i])
|
|
val = ARIZONA_OUT1_MONO;
|
|
else
|
|
val = 0;
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
|
|
ARIZONA_OUT1_MONO, val);
|
|
}
|
|
|
|
for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
|
|
if (arizona->pdata.spk_mute[i])
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
|
|
ARIZONA_SPK1_MUTE_ENDIAN_MASK |
|
|
ARIZONA_SPK1_MUTE_SEQ1_MASK,
|
|
arizona->pdata.spk_mute[i]);
|
|
|
|
if (arizona->pdata.spk_fmt[i])
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
|
|
ARIZONA_SPK1_FMT_MASK,
|
|
arizona->pdata.spk_fmt[i]);
|
|
}
|
|
|
|
/* Set up for interrupts */
|
|
ret = arizona_irq_init(arizona);
|
|
if (ret != 0)
|
|
goto err_reset;
|
|
|
|
arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
|
|
arizona_clkgen_err, arizona);
|
|
arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
|
|
arizona_overclocked, arizona);
|
|
arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
|
|
arizona_underclocked, arizona);
|
|
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
|
|
ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
|
|
break;
|
|
case WM5110:
|
|
case WM8280:
|
|
ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
|
|
ARRAY_SIZE(wm5110_devs), NULL, 0, NULL);
|
|
break;
|
|
case WM8997:
|
|
ret = mfd_add_devices(arizona->dev, -1, wm8997_devs,
|
|
ARRAY_SIZE(wm8997_devs), NULL, 0, NULL);
|
|
break;
|
|
}
|
|
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
|
|
goto err_irq;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
regulator_disable(arizona->dcvdd);
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
err_irq:
|
|
arizona_irq_exit(arizona);
|
|
err_reset:
|
|
arizona_enable_reset(arizona);
|
|
regulator_disable(arizona->dcvdd);
|
|
err_enable:
|
|
regulator_bulk_disable(arizona->num_core_supplies,
|
|
arizona->core_supplies);
|
|
err_dcvdd:
|
|
regulator_put(arizona->dcvdd);
|
|
err_early:
|
|
mfd_remove_devices(dev);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(arizona_dev_init);
|
|
|
|
int arizona_dev_exit(struct arizona *arizona)
|
|
{
|
|
pm_runtime_disable(arizona->dev);
|
|
|
|
regulator_disable(arizona->dcvdd);
|
|
regulator_put(arizona->dcvdd);
|
|
|
|
mfd_remove_devices(arizona->dev);
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
|
|
arizona_irq_exit(arizona);
|
|
arizona_enable_reset(arizona);
|
|
|
|
regulator_bulk_disable(arizona->num_core_supplies,
|
|
arizona->core_supplies);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(arizona_dev_exit);
|