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![Linus Torvalds](/assets/img/avatar_default.png)
There are little changes in core part, but lots of development are found in drivers, especially ASoC. The diffstat shows regmap- related changes for a slight API additions / changes, and that's all. Looking at the code size statistics, the most significant addition is for Intel Skylake. (Note that SKL support is still underway, the codec driver is missing.) Also STI controller driver is a major addition as well as a few new codec drivers. In HD-audio side, there are fewer changes than the past. The noticeable change is the support of ELD notification from i915 graphics driver. Thus this pull request carries a few changes in drm/i915. Other than that, USB-audio got a rewrite of runtime PM code. It was initiated by lockdep warning, but resulted in a good cleanup in the end. Below are the highlights: Common: - Factoring out of AC'97 reset code from ASoC into the core helper - A few regmap API extensions (in case it's not pulled yet) ASoC: - New drivers for Cirrus CS4349, GTM601, InvenSense ICS43432, Realtek RT298 and ST STI controllers - Machine drivers for Rockchip systems with MAX98090 and RT5645 and RT5650 - Initial driver support for Intel Skylake devices - Lots of rsnd cleanup and enhancements - A few DAPM fixes and cleanups - A large number of cleanups in various drivers (conversion and standardized to regmap, component) mostly by Lars-Peter and Axel HD-audio: - Extended HD-audio core for Intel Skylake controller support - Quirks for Dell headsets, Alienware 15 - Clean up of pin-based quirk tables for Realtek codecs - ELD notifier implenetation for Intel HDMI/DP USB-audio: - Refactor runtime PM code to make lockdep happier -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJV6TwJAAoJEGwxgFQ9KSmkZoEP/06GrsGlfgIfBbnlAKcsZ0t0 RDDCbxmwD8IsjTk180Gs3qBuhVPurhmPxq6Leow5fBktkEK5bIN3eAQkO9aIMroW xxU1UF6Q9XE2j97e/PhhUld7/NP0IQK/YTMuwX74G2kfEkA9Lktl4UjNMw9mKJX2 8OIwz8ZuqSG60znmGlgiqRE4M3Svs1L/jVP1wrPg2DXQfe+ptAJpUTsyVGOMRWm3 IaJ9h5OelPg8Jm61zcg6/pgsdYx4oquCV5wLwMz8rzIUfHb7ox8F7YKOzB+sXtYI zcsTfF2CqifoBcQAh9c+XE4+gMamAdheA+uc8ScUkcskucTj4Fr5tXLiPSN9QMt4 QGOOVjqcpWv5rWwAgzUJvl1/PT4HyQfkXn5tEQVGdg9Ab1SIcQBzD1+nHUV94vKZ N7/grMdqJ56zUGK2fEcBS6BEDlaSToOIHDrQ1iPFNBvmW8qjBq9tYaufTGC6Vtj2 0YKJukzIbyqLIgQtQf44aqLouFIz2lq437PqRQ4W+9C3FwGN9FKCYJ/JzvOGDIJa sSjEwQkJ9vnmZ3E2B30NKb24TG8pPq9WPIN2Rqe5EbHctU3gEnMScwvmG7SmCSG5 LtDVr6Q5XKFM56cVb7tdZl6Jv97BvGu6EERM+zN+8YyMver206rC8upWOev6R2q3 asvLDEchv7Qm3upx+PYg =/sXs -----END PGP SIGNATURE----- Merge tag 'sound-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "There are little changes in core part, but lots of development are found in drivers, especially ASoC. The diffstat shows regmap-related changes for a slight API additions / changes, and that's all. Looking at the code size statistics, the most significant addition is for Intel Skylake. (Note that SKL support is still underway, the codec driver is missing.) Also STI controller driver is a major addition as well as a few new codec drivers. In HD-audio side, there are fewer changes than the past. The noticeable change is the support of ELD notification from i915 graphics driver. Thus this pull request carries a few changes in drm/i915. Other than that, USB-audio got a rewrite of runtime PM code. It was initiated by lockdep warning, but resulted in a good cleanup in the end. Below are the highlights: Common: - Factoring out of AC'97 reset code from ASoC into the core helper - A few regmap API extensions (in case it's not pulled yet) ASoC: - New drivers for Cirrus CS4349, GTM601, InvenSense ICS43432, Realtek RT298 and ST STI controllers - Machine drivers for Rockchip systems with MAX98090 and RT5645 and RT5650 - Initial driver support for Intel Skylake devices - Lots of rsnd cleanup and enhancements - A few DAPM fixes and cleanups - A large number of cleanups in various drivers (conversion and standardized to regmap, component) mostly by Lars-Peter and Axel HD-audio: - Extended HD-audio core for Intel Skylake controller support - Quirks for Dell headsets, Alienware 15 - Clean up of pin-based quirk tables for Realtek codecs - ELD notifier implenetation for Intel HDMI/DP USB-audio: - Refactor runtime PM code to make lockdep happier" * tag 'sound-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (411 commits) drm/i915: Add locks around audio component bind/unbind drm/i915: Drop port_mst_index parameter from pin/eld callback ALSA: hda - Fix missing inline for dummy snd_hdac_set_codec_wakeup() ALSA: hda - Wake the codec up on pin/ELD notify events ALSA: hda - allow codecs to access the i915 pin/ELD callback drm/i915: Call audio pin/ELD notify function drm/i915: Add audio pin sense / ELD callback ASoC: zx296702-i2s: Fix resource leak when unload module ASoC: sti_uniperif: Ensure component is unregistered when unload module ASoC: au1x: psc-i2s: Convert to use devm_ioremap_resource ASoC: sh: dma-sh7760: Convert to devm_snd_soc_register_platform ASoC: spear_pcm: Use devm_snd_dmaengine_pcm_register to fix resource leak ALSA: fireworks/bebob/dice/oxfw: fix substreams counting at vmalloc failure ASoC: Clean up docbook warnings ASoC: txx9: Convert to devm_snd_soc_register_platform ASoC: pxa: Convert to devm_snd_soc_register_platform ASoC: nuc900: Convert to devm_snd_soc_register_platform ASoC: blackfin: Convert to devm_snd_soc_register_platform ASoC: au1x: Convert to devm_snd_soc_register_platform ASoC: qcom: Constify asoc_qcom_lpass_cpu_dai_ops ...
815 lines
20 KiB
C
815 lines
20 KiB
C
/*
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* MFD driver for TWL6040 audio device
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*
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* Authors: Misael Lopez Cruz <misael.lopez@ti.com>
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* Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
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* Peter Ujfalusi <peter.ujfalusi@ti.com>
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*
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* Copyright: (C) 2011 Texas Instruments, Inc.
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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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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_gpio.h>
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#include <linux/of_platform.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/twl6040.h>
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#include <linux/regulator/consumer.h>
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#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1)
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#define TWL6040_NUM_SUPPLIES (2)
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static const struct reg_default twl6040_defaults[] = {
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{ 0x01, 0x4B }, /* REG_ASICID (ro) */
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{ 0x02, 0x00 }, /* REG_ASICREV (ro) */
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{ 0x03, 0x00 }, /* REG_INTID */
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{ 0x04, 0x00 }, /* REG_INTMR */
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{ 0x05, 0x00 }, /* REG_NCPCTRL */
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{ 0x06, 0x00 }, /* REG_LDOCTL */
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{ 0x07, 0x60 }, /* REG_HPPLLCTL */
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{ 0x08, 0x00 }, /* REG_LPPLLCTL */
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{ 0x09, 0x4A }, /* REG_LPPLLDIV */
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{ 0x0A, 0x00 }, /* REG_AMICBCTL */
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{ 0x0B, 0x00 }, /* REG_DMICBCTL */
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{ 0x0C, 0x00 }, /* REG_MICLCTL */
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{ 0x0D, 0x00 }, /* REG_MICRCTL */
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{ 0x0E, 0x00 }, /* REG_MICGAIN */
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{ 0x0F, 0x1B }, /* REG_LINEGAIN */
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{ 0x10, 0x00 }, /* REG_HSLCTL */
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{ 0x11, 0x00 }, /* REG_HSRCTL */
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{ 0x12, 0x00 }, /* REG_HSGAIN */
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{ 0x13, 0x00 }, /* REG_EARCTL */
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{ 0x14, 0x00 }, /* REG_HFLCTL */
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{ 0x15, 0x00 }, /* REG_HFLGAIN */
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{ 0x16, 0x00 }, /* REG_HFRCTL */
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{ 0x17, 0x00 }, /* REG_HFRGAIN */
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{ 0x18, 0x00 }, /* REG_VIBCTLL */
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{ 0x19, 0x00 }, /* REG_VIBDATL */
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{ 0x1A, 0x00 }, /* REG_VIBCTLR */
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{ 0x1B, 0x00 }, /* REG_VIBDATR */
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{ 0x1C, 0x00 }, /* REG_HKCTL1 */
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{ 0x1D, 0x00 }, /* REG_HKCTL2 */
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{ 0x1E, 0x00 }, /* REG_GPOCTL */
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{ 0x1F, 0x00 }, /* REG_ALB */
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{ 0x20, 0x00 }, /* REG_DLB */
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/* 0x28, REG_TRIM1 */
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/* 0x29, REG_TRIM2 */
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/* 0x2A, REG_TRIM3 */
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/* 0x2B, REG_HSOTRIM */
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/* 0x2C, REG_HFOTRIM */
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{ 0x2D, 0x08 }, /* REG_ACCCTL */
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{ 0x2E, 0x00 }, /* REG_STATUS (ro) */
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};
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static struct reg_sequence twl6040_patch[] = {
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/*
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* Select I2C bus access to dual access registers
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* Interrupt register is cleared on read
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* Select fast mode for i2c (400KHz)
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*/
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{ TWL6040_REG_ACCCTL,
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TWL6040_I2CSEL | TWL6040_INTCLRMODE | TWL6040_I2CMODE(1) },
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};
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static bool twl6040_has_vibra(struct device_node *node)
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{
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#ifdef CONFIG_OF
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if (of_find_node_by_name(node, "vibra"))
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return true;
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#endif
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return false;
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}
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int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg)
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{
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int ret;
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unsigned int val;
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ret = regmap_read(twl6040->regmap, reg, &val);
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if (ret < 0)
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return ret;
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return val;
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}
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EXPORT_SYMBOL(twl6040_reg_read);
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int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val)
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{
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int ret;
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ret = regmap_write(twl6040->regmap, reg, val);
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return ret;
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}
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EXPORT_SYMBOL(twl6040_reg_write);
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int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask)
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{
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return regmap_update_bits(twl6040->regmap, reg, mask, mask);
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}
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EXPORT_SYMBOL(twl6040_set_bits);
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int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask)
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{
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return regmap_update_bits(twl6040->regmap, reg, mask, 0);
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}
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EXPORT_SYMBOL(twl6040_clear_bits);
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/* twl6040 codec manual power-up sequence */
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static int twl6040_power_up_manual(struct twl6040 *twl6040)
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{
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u8 ldoctl, ncpctl, lppllctl;
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int ret;
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/* enable high-side LDO, reference system and internal oscillator */
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ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA;
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ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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if (ret)
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return ret;
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usleep_range(10000, 10500);
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/* enable negative charge pump */
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ncpctl = TWL6040_NCPENA;
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ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
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if (ret)
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goto ncp_err;
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usleep_range(1000, 1500);
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/* enable low-side LDO */
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ldoctl |= TWL6040_LSLDOENA;
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ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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if (ret)
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goto lsldo_err;
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usleep_range(1000, 1500);
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/* enable low-power PLL */
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lppllctl = TWL6040_LPLLENA;
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ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
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if (ret)
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goto lppll_err;
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usleep_range(5000, 5500);
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/* disable internal oscillator */
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ldoctl &= ~TWL6040_OSCENA;
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ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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if (ret)
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goto osc_err;
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return 0;
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osc_err:
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lppllctl &= ~TWL6040_LPLLENA;
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twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
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lppll_err:
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ldoctl &= ~TWL6040_LSLDOENA;
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twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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lsldo_err:
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ncpctl &= ~TWL6040_NCPENA;
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twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
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ncp_err:
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ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA);
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twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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dev_err(twl6040->dev, "manual power-up failed\n");
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return ret;
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}
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/* twl6040 manual power-down sequence */
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static void twl6040_power_down_manual(struct twl6040 *twl6040)
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{
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u8 ncpctl, ldoctl, lppllctl;
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ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL);
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ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL);
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lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL);
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/* enable internal oscillator */
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ldoctl |= TWL6040_OSCENA;
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twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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usleep_range(1000, 1500);
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/* disable low-power PLL */
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lppllctl &= ~TWL6040_LPLLENA;
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twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
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/* disable low-side LDO */
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ldoctl &= ~TWL6040_LSLDOENA;
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twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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/* disable negative charge pump */
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ncpctl &= ~TWL6040_NCPENA;
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twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
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/* disable high-side LDO, reference system and internal oscillator */
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ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA);
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twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
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}
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static irqreturn_t twl6040_readyint_handler(int irq, void *data)
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{
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struct twl6040 *twl6040 = data;
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complete(&twl6040->ready);
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return IRQ_HANDLED;
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}
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static irqreturn_t twl6040_thint_handler(int irq, void *data)
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{
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struct twl6040 *twl6040 = data;
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u8 status;
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status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
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if (status & TWL6040_TSHUTDET) {
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dev_warn(twl6040->dev, "Thermal shutdown, powering-off");
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twl6040_power(twl6040, 0);
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} else {
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dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on");
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twl6040_power(twl6040, 1);
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}
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return IRQ_HANDLED;
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}
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static int twl6040_power_up_automatic(struct twl6040 *twl6040)
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{
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int time_left;
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gpio_set_value(twl6040->audpwron, 1);
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time_left = wait_for_completion_timeout(&twl6040->ready,
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msecs_to_jiffies(144));
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if (!time_left) {
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u8 intid;
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dev_warn(twl6040->dev, "timeout waiting for READYINT\n");
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intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
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if (!(intid & TWL6040_READYINT)) {
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dev_err(twl6040->dev, "automatic power-up failed\n");
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gpio_set_value(twl6040->audpwron, 0);
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return -ETIMEDOUT;
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}
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}
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return 0;
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}
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int twl6040_power(struct twl6040 *twl6040, int on)
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{
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int ret = 0;
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mutex_lock(&twl6040->mutex);
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if (on) {
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/* already powered-up */
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if (twl6040->power_count++)
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goto out;
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clk_prepare_enable(twl6040->clk32k);
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/* Allow writes to the chip */
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regcache_cache_only(twl6040->regmap, false);
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if (gpio_is_valid(twl6040->audpwron)) {
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/* use automatic power-up sequence */
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ret = twl6040_power_up_automatic(twl6040);
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if (ret) {
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twl6040->power_count = 0;
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goto out;
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}
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} else {
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/* use manual power-up sequence */
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ret = twl6040_power_up_manual(twl6040);
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if (ret) {
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twl6040->power_count = 0;
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goto out;
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}
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}
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/* Sync with the HW */
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regcache_sync(twl6040->regmap);
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/* Default PLL configuration after power up */
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twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL;
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twl6040->sysclk = 19200000;
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twl6040->mclk = 32768;
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} else {
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/* already powered-down */
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if (!twl6040->power_count) {
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dev_err(twl6040->dev,
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"device is already powered-off\n");
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ret = -EPERM;
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goto out;
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}
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if (--twl6040->power_count)
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goto out;
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if (gpio_is_valid(twl6040->audpwron)) {
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/* use AUDPWRON line */
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gpio_set_value(twl6040->audpwron, 0);
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/* power-down sequence latency */
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usleep_range(500, 700);
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} else {
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/* use manual power-down sequence */
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twl6040_power_down_manual(twl6040);
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}
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/* Set regmap to cache only and mark it as dirty */
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regcache_cache_only(twl6040->regmap, true);
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regcache_mark_dirty(twl6040->regmap);
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twl6040->sysclk = 0;
|
|
twl6040->mclk = 0;
|
|
|
|
clk_disable_unprepare(twl6040->clk32k);
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&twl6040->mutex);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(twl6040_power);
|
|
|
|
int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
|
|
unsigned int freq_in, unsigned int freq_out)
|
|
{
|
|
u8 hppllctl, lppllctl;
|
|
int ret = 0;
|
|
|
|
mutex_lock(&twl6040->mutex);
|
|
|
|
hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL);
|
|
lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL);
|
|
|
|
/* Force full reconfiguration when switching between PLL */
|
|
if (pll_id != twl6040->pll) {
|
|
twl6040->sysclk = 0;
|
|
twl6040->mclk = 0;
|
|
}
|
|
|
|
switch (pll_id) {
|
|
case TWL6040_SYSCLK_SEL_LPPLL:
|
|
/* low-power PLL divider */
|
|
/* Change the sysclk configuration only if it has been canged */
|
|
if (twl6040->sysclk != freq_out) {
|
|
switch (freq_out) {
|
|
case 17640000:
|
|
lppllctl |= TWL6040_LPLLFIN;
|
|
break;
|
|
case 19200000:
|
|
lppllctl &= ~TWL6040_LPLLFIN;
|
|
break;
|
|
default:
|
|
dev_err(twl6040->dev,
|
|
"freq_out %d not supported\n",
|
|
freq_out);
|
|
ret = -EINVAL;
|
|
goto pll_out;
|
|
}
|
|
twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
|
|
lppllctl);
|
|
}
|
|
|
|
/* The PLL in use has not been change, we can exit */
|
|
if (twl6040->pll == pll_id)
|
|
break;
|
|
|
|
switch (freq_in) {
|
|
case 32768:
|
|
lppllctl |= TWL6040_LPLLENA;
|
|
twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
|
|
lppllctl);
|
|
mdelay(5);
|
|
lppllctl &= ~TWL6040_HPLLSEL;
|
|
twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
|
|
lppllctl);
|
|
hppllctl &= ~TWL6040_HPLLENA;
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL,
|
|
hppllctl);
|
|
break;
|
|
default:
|
|
dev_err(twl6040->dev,
|
|
"freq_in %d not supported\n", freq_in);
|
|
ret = -EINVAL;
|
|
goto pll_out;
|
|
}
|
|
break;
|
|
case TWL6040_SYSCLK_SEL_HPPLL:
|
|
/* high-performance PLL can provide only 19.2 MHz */
|
|
if (freq_out != 19200000) {
|
|
dev_err(twl6040->dev,
|
|
"freq_out %d not supported\n", freq_out);
|
|
ret = -EINVAL;
|
|
goto pll_out;
|
|
}
|
|
|
|
if (twl6040->mclk != freq_in) {
|
|
hppllctl &= ~TWL6040_MCLK_MSK;
|
|
|
|
switch (freq_in) {
|
|
case 12000000:
|
|
/* PLL enabled, active mode */
|
|
hppllctl |= TWL6040_MCLK_12000KHZ |
|
|
TWL6040_HPLLENA;
|
|
break;
|
|
case 19200000:
|
|
/* PLL enabled, bypass mode */
|
|
hppllctl |= TWL6040_MCLK_19200KHZ |
|
|
TWL6040_HPLLBP | TWL6040_HPLLENA;
|
|
break;
|
|
case 26000000:
|
|
/* PLL enabled, active mode */
|
|
hppllctl |= TWL6040_MCLK_26000KHZ |
|
|
TWL6040_HPLLENA;
|
|
break;
|
|
case 38400000:
|
|
/* PLL enabled, bypass mode */
|
|
hppllctl |= TWL6040_MCLK_38400KHZ |
|
|
TWL6040_HPLLBP | TWL6040_HPLLENA;
|
|
break;
|
|
default:
|
|
dev_err(twl6040->dev,
|
|
"freq_in %d not supported\n", freq_in);
|
|
ret = -EINVAL;
|
|
goto pll_out;
|
|
}
|
|
|
|
/*
|
|
* enable clock slicer to ensure input waveform is
|
|
* square
|
|
*/
|
|
hppllctl |= TWL6040_HPLLSQRENA;
|
|
|
|
twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL,
|
|
hppllctl);
|
|
usleep_range(500, 700);
|
|
lppllctl |= TWL6040_HPLLSEL;
|
|
twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
|
|
lppllctl);
|
|
lppllctl &= ~TWL6040_LPLLENA;
|
|
twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
|
|
lppllctl);
|
|
}
|
|
break;
|
|
default:
|
|
dev_err(twl6040->dev, "unknown pll id %d\n", pll_id);
|
|
ret = -EINVAL;
|
|
goto pll_out;
|
|
}
|
|
|
|
twl6040->sysclk = freq_out;
|
|
twl6040->mclk = freq_in;
|
|
twl6040->pll = pll_id;
|
|
|
|
pll_out:
|
|
mutex_unlock(&twl6040->mutex);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(twl6040_set_pll);
|
|
|
|
int twl6040_get_pll(struct twl6040 *twl6040)
|
|
{
|
|
if (twl6040->power_count)
|
|
return twl6040->pll;
|
|
else
|
|
return -ENODEV;
|
|
}
|
|
EXPORT_SYMBOL(twl6040_get_pll);
|
|
|
|
unsigned int twl6040_get_sysclk(struct twl6040 *twl6040)
|
|
{
|
|
return twl6040->sysclk;
|
|
}
|
|
EXPORT_SYMBOL(twl6040_get_sysclk);
|
|
|
|
/* Get the combined status of the vibra control register */
|
|
int twl6040_get_vibralr_status(struct twl6040 *twl6040)
|
|
{
|
|
unsigned int reg;
|
|
int ret;
|
|
u8 status;
|
|
|
|
ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLL, ®);
|
|
if (ret != 0)
|
|
return ret;
|
|
status = reg;
|
|
|
|
ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLR, ®);
|
|
if (ret != 0)
|
|
return ret;
|
|
status |= reg;
|
|
|
|
status &= (TWL6040_VIBENA | TWL6040_VIBSEL);
|
|
|
|
return status;
|
|
}
|
|
EXPORT_SYMBOL(twl6040_get_vibralr_status);
|
|
|
|
static struct resource twl6040_vibra_rsrc[] = {
|
|
{
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct resource twl6040_codec_rsrc[] = {
|
|
{
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static bool twl6040_readable_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
/* Register 0 is not readable */
|
|
if (!reg)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool twl6040_volatile_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case TWL6040_REG_ASICID:
|
|
case TWL6040_REG_ASICREV:
|
|
case TWL6040_REG_INTID:
|
|
case TWL6040_REG_LPPLLCTL:
|
|
case TWL6040_REG_HPPLLCTL:
|
|
case TWL6040_REG_STATUS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool twl6040_writeable_reg(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case TWL6040_REG_ASICID:
|
|
case TWL6040_REG_ASICREV:
|
|
case TWL6040_REG_STATUS:
|
|
return false;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static const struct regmap_config twl6040_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
|
|
.reg_defaults = twl6040_defaults,
|
|
.num_reg_defaults = ARRAY_SIZE(twl6040_defaults),
|
|
|
|
.max_register = TWL6040_REG_STATUS, /* 0x2e */
|
|
|
|
.readable_reg = twl6040_readable_reg,
|
|
.volatile_reg = twl6040_volatile_reg,
|
|
.writeable_reg = twl6040_writeable_reg,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static const struct regmap_irq twl6040_irqs[] = {
|
|
{ .reg_offset = 0, .mask = TWL6040_THINT, },
|
|
{ .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, },
|
|
{ .reg_offset = 0, .mask = TWL6040_HOOKINT, },
|
|
{ .reg_offset = 0, .mask = TWL6040_HFINT, },
|
|
{ .reg_offset = 0, .mask = TWL6040_VIBINT, },
|
|
{ .reg_offset = 0, .mask = TWL6040_READYINT, },
|
|
};
|
|
|
|
static struct regmap_irq_chip twl6040_irq_chip = {
|
|
.name = "twl6040",
|
|
.irqs = twl6040_irqs,
|
|
.num_irqs = ARRAY_SIZE(twl6040_irqs),
|
|
|
|
.num_regs = 1,
|
|
.status_base = TWL6040_REG_INTID,
|
|
.mask_base = TWL6040_REG_INTMR,
|
|
};
|
|
|
|
static int twl6040_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct device_node *node = client->dev.of_node;
|
|
struct twl6040 *twl6040;
|
|
struct mfd_cell *cell = NULL;
|
|
int irq, ret, children = 0;
|
|
|
|
if (!node) {
|
|
dev_err(&client->dev, "of node is missing\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* In order to operate correctly we need valid interrupt config */
|
|
if (!client->irq) {
|
|
dev_err(&client->dev, "Invalid IRQ configuration\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040),
|
|
GFP_KERNEL);
|
|
if (!twl6040)
|
|
return -ENOMEM;
|
|
|
|
twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config);
|
|
if (IS_ERR(twl6040->regmap))
|
|
return PTR_ERR(twl6040->regmap);
|
|
|
|
i2c_set_clientdata(client, twl6040);
|
|
|
|
twl6040->clk32k = devm_clk_get(&client->dev, "clk32k");
|
|
if (IS_ERR(twl6040->clk32k)) {
|
|
dev_info(&client->dev, "clk32k is not handled\n");
|
|
twl6040->clk32k = NULL;
|
|
}
|
|
|
|
twl6040->supplies[0].supply = "vio";
|
|
twl6040->supplies[1].supply = "v2v1";
|
|
ret = devm_regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES,
|
|
twl6040->supplies);
|
|
if (ret != 0) {
|
|
dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
|
|
if (ret != 0) {
|
|
dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
twl6040->dev = &client->dev;
|
|
twl6040->irq = client->irq;
|
|
|
|
mutex_init(&twl6040->mutex);
|
|
init_completion(&twl6040->ready);
|
|
|
|
regmap_register_patch(twl6040->regmap, twl6040_patch,
|
|
ARRAY_SIZE(twl6040_patch));
|
|
|
|
twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV);
|
|
if (twl6040->rev < 0) {
|
|
dev_err(&client->dev, "Failed to read revision register: %d\n",
|
|
twl6040->rev);
|
|
ret = twl6040->rev;
|
|
goto gpio_err;
|
|
}
|
|
|
|
/* ERRATA: Automatic power-up is not possible in ES1.0 */
|
|
if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0)
|
|
twl6040->audpwron = of_get_named_gpio(node,
|
|
"ti,audpwron-gpio", 0);
|
|
else
|
|
twl6040->audpwron = -EINVAL;
|
|
|
|
if (gpio_is_valid(twl6040->audpwron)) {
|
|
ret = devm_gpio_request_one(&client->dev, twl6040->audpwron,
|
|
GPIOF_OUT_INIT_LOW, "audpwron");
|
|
if (ret)
|
|
goto gpio_err;
|
|
|
|
/* Clear any pending interrupt */
|
|
twl6040_reg_read(twl6040, TWL6040_REG_INTID);
|
|
}
|
|
|
|
ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, IRQF_ONESHOT,
|
|
0, &twl6040_irq_chip, &twl6040->irq_data);
|
|
if (ret < 0)
|
|
goto gpio_err;
|
|
|
|
twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data,
|
|
TWL6040_IRQ_READY);
|
|
twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data,
|
|
TWL6040_IRQ_TH);
|
|
|
|
ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_ready, NULL,
|
|
twl6040_readyint_handler, IRQF_ONESHOT,
|
|
"twl6040_irq_ready", twl6040);
|
|
if (ret) {
|
|
dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret);
|
|
goto readyirq_err;
|
|
}
|
|
|
|
ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_th, NULL,
|
|
twl6040_thint_handler, IRQF_ONESHOT,
|
|
"twl6040_irq_th", twl6040);
|
|
if (ret) {
|
|
dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
|
|
goto readyirq_err;
|
|
}
|
|
|
|
/*
|
|
* The main functionality of twl6040 to provide audio on OMAP4+ systems.
|
|
* We can add the ASoC codec child whenever this driver has been loaded.
|
|
*/
|
|
irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG);
|
|
cell = &twl6040->cells[children];
|
|
cell->name = "twl6040-codec";
|
|
twl6040_codec_rsrc[0].start = irq;
|
|
twl6040_codec_rsrc[0].end = irq;
|
|
cell->resources = twl6040_codec_rsrc;
|
|
cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc);
|
|
children++;
|
|
|
|
/* Vibra input driver support */
|
|
if (twl6040_has_vibra(node)) {
|
|
irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB);
|
|
|
|
cell = &twl6040->cells[children];
|
|
cell->name = "twl6040-vibra";
|
|
twl6040_vibra_rsrc[0].start = irq;
|
|
twl6040_vibra_rsrc[0].end = irq;
|
|
cell->resources = twl6040_vibra_rsrc;
|
|
cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc);
|
|
children++;
|
|
}
|
|
|
|
/* GPO support */
|
|
cell = &twl6040->cells[children];
|
|
cell->name = "twl6040-gpo";
|
|
children++;
|
|
|
|
/* The chip is powered down so mark regmap to cache only and dirty */
|
|
regcache_cache_only(twl6040->regmap, true);
|
|
regcache_mark_dirty(twl6040->regmap);
|
|
|
|
ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
|
|
NULL, 0, NULL);
|
|
if (ret)
|
|
goto readyirq_err;
|
|
|
|
return 0;
|
|
|
|
readyirq_err:
|
|
regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
|
|
gpio_err:
|
|
regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
|
|
return ret;
|
|
}
|
|
|
|
static int twl6040_remove(struct i2c_client *client)
|
|
{
|
|
struct twl6040 *twl6040 = i2c_get_clientdata(client);
|
|
|
|
if (twl6040->power_count)
|
|
twl6040_power(twl6040, 0);
|
|
|
|
regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
|
|
|
|
mfd_remove_devices(&client->dev);
|
|
|
|
regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id twl6040_i2c_id[] = {
|
|
{ "twl6040", 0, },
|
|
{ "twl6041", 0, },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id);
|
|
|
|
static struct i2c_driver twl6040_driver = {
|
|
.driver = {
|
|
.name = "twl6040",
|
|
},
|
|
.probe = twl6040_probe,
|
|
.remove = twl6040_remove,
|
|
.id_table = twl6040_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(twl6040_driver);
|
|
|
|
MODULE_DESCRIPTION("TWL6040 MFD");
|
|
MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
|
|
MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
|
|
MODULE_LICENSE("GPL");
|