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Merge series "ASoC: rt9120: Add Richtek RT9120 supprot" from cy_huang <u0084500@gmail.com>
ChiYuan Huang <cy_huang@richtek.com>: From: ChiYuan Huang <cy_huang@richtek.com> This patch series Add the Richtek RT9120 support. In v4: - Add 'classd_tlv' for 'SPK Gain Volume' control item. - Unify the tlv declaration to the postfix '_tlv'. - Fix 'digital_tlv' mute as 1 to declare the minimum is muted. In v3: - Add dvdd regulator binding to check the dvdd voltage domain. - Refine sdo_select_text. - Use switch case in 'internal_power_event' function. - Remove the volume and mute initially write in component probe. - Remove the mute API. It's no need by HW design. In v2: - Add missing #sound-dai-cells property. ChiYuan Huang (2): ASoC: dt-bindings: rt9120: Add initial bindings ASoC: rt9120: Add rt9210 audio amplifier support .../devicetree/bindings/sound/richtek,rt9120.yaml | 59 +++ sound/soc/codecs/Kconfig | 10 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/rt9120.c | 495 +++++++++++++++++++++ 4 files changed, 566 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/richtek,rt9120.yaml create mode 100644 sound/soc/codecs/rt9120.c -- 2.7.4
This commit is contained in:
Mark Brown
commit
495ee4bac7
59
Documentation/devicetree/bindings/sound/richtek,rt9120.yaml
Normal file
59
Documentation/devicetree/bindings/sound/richtek,rt9120.yaml
Normal file
@ -0,0 +1,59 @@
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Richtek RT9120 Class-D audio amplifier
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maintainers:
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- ChiYuan Huang <cy_huang@richtek.com>
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description: |
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The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
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delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input
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voltage range from 4.5V to 26.4V to meet the need on most common
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applications like as TV, monitors. home entertainment, electronic music
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equipment.
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properties:
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compatible:
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enum:
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- richtek,rt9120
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reg:
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description: I2C device address
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maxItems: 1
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pwdnn-gpios:
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description: GPIO used for power down, low active
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maxItems: 1
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dvdd-supply:
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description: |
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Supply for the default on DVDD power, voltage domain must be 3P3V or 1P8V
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'#sound-dai-cells':
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const: 0
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required:
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- compatible
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- reg
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- dvdd-supply
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- '#sound-dai-cells'
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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rt9120@1a {
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compatible = "richtek,rt9120";
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reg = <0x1a>;
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pwdnn-gpios = <&gpio26 2 0>;
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dvdd-supply = <&vdd_io_reg>;
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#sound-dai-cells = <0>;
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};
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};
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@ -191,6 +191,7 @@ config SND_SOC_ALL_CODECS
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imply SND_SOC_RT715_SDCA_SDW
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imply SND_SOC_RT715_SDCA_SDW
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imply SND_SOC_RT1308_SDW
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imply SND_SOC_RT1308_SDW
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imply SND_SOC_RT1316_SDW
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imply SND_SOC_RT1316_SDW
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imply SND_SOC_RT9120
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imply SND_SOC_SDW_MOCKUP
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imply SND_SOC_SDW_MOCKUP
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imply SND_SOC_SGTL5000
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imply SND_SOC_SGTL5000
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imply SND_SOC_SI476X
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imply SND_SOC_SI476X
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@ -1307,6 +1308,15 @@ config SND_SOC_RT715_SDCA_SDW
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select REGMAP_SOUNDWIRE
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select REGMAP_SOUNDWIRE
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select REGMAP_SOUNDWIRE_MBQ
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select REGMAP_SOUNDWIRE_MBQ
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config SND_SOC_RT9120
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tristate "Richtek RT9120 Stereo Class-D Amplifier"
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depends on I2C
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select REGMAP_I2C
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select GPIOLIB
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help
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Enable support for Richtek RT9120 20W, stereo, inductor-less,
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high-efficiency Class-D audio amplifier.
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config SND_SOC_SDW_MOCKUP
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config SND_SOC_SDW_MOCKUP
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tristate "SoundWire mockup codec"
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tristate "SoundWire mockup codec"
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depends on EXPERT
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depends on EXPERT
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@ -207,6 +207,7 @@ snd-soc-rt711-objs := rt711.o rt711-sdw.o
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snd-soc-rt711-sdca-objs := rt711-sdca.o rt711-sdca-sdw.o
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snd-soc-rt711-sdca-objs := rt711-sdca.o rt711-sdca-sdw.o
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snd-soc-rt715-objs := rt715.o rt715-sdw.o
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snd-soc-rt715-objs := rt715.o rt715-sdw.o
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snd-soc-rt715-sdca-objs := rt715-sdca.o rt715-sdca-sdw.o
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snd-soc-rt715-sdca-objs := rt715-sdca.o rt715-sdca-sdw.o
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snd-soc-rt9120-objs := rt9120.o
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snd-soc-sdw-mockup-objs := sdw-mockup.o
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snd-soc-sdw-mockup-objs := sdw-mockup.o
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snd-soc-sgtl5000-objs := sgtl5000.o
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snd-soc-sgtl5000-objs := sgtl5000.o
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snd-soc-alc5623-objs := alc5623.o
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snd-soc-alc5623-objs := alc5623.o
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@ -539,6 +540,7 @@ obj-$(CONFIG_SND_SOC_RT711) += snd-soc-rt711.o
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obj-$(CONFIG_SND_SOC_RT711_SDCA_SDW) += snd-soc-rt711-sdca.o
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obj-$(CONFIG_SND_SOC_RT711_SDCA_SDW) += snd-soc-rt711-sdca.o
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obj-$(CONFIG_SND_SOC_RT715) += snd-soc-rt715.o
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obj-$(CONFIG_SND_SOC_RT715) += snd-soc-rt715.o
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obj-$(CONFIG_SND_SOC_RT715_SDCA_SDW) += snd-soc-rt715-sdca.o
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obj-$(CONFIG_SND_SOC_RT715_SDCA_SDW) += snd-soc-rt715-sdca.o
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obj-$(CONFIG_SND_SOC_RT9120) += snd-soc-rt9120.o
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obj-$(CONFIG_SND_SOC_SDW_MOCKUP) += snd-soc-sdw-mockup.o
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obj-$(CONFIG_SND_SOC_SDW_MOCKUP) += snd-soc-sdw-mockup.o
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obj-$(CONFIG_SND_SOC_SGTL5000) += snd-soc-sgtl5000.o
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obj-$(CONFIG_SND_SOC_SGTL5000) += snd-soc-sgtl5000.o
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obj-$(CONFIG_SND_SOC_SIGMADSP) += snd-soc-sigmadsp.o
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obj-$(CONFIG_SND_SOC_SIGMADSP) += snd-soc-sigmadsp.o
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495
sound/soc/codecs/rt9120.c
Normal file
495
sound/soc/codecs/rt9120.c
Normal file
@ -0,0 +1,495 @@
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/bits.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/i2c.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/regulator/consumer.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#define RT9120_REG_DEVID 0x00
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#define RT9120_REG_I2SFMT 0x02
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#define RT9120_REG_I2SWL 0x03
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#define RT9120_REG_SDIOSEL 0x04
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#define RT9120_REG_SYSCTL 0x05
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#define RT9120_REG_SPKGAIN 0x07
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#define RT9120_REG_VOLRAMP 0x0A
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#define RT9120_REG_ERRRPT 0x10
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#define RT9120_REG_MSVOL 0x20
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#define RT9120_REG_SWRESET 0x40
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#define RT9120_REG_INTERNAL0 0x65
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#define RT9120_REG_INTERNAL1 0x69
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#define RT9120_REG_UVPOPT 0x6C
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#define RT9120_VID_MASK GENMASK(15, 8)
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#define RT9120_SWRST_MASK BIT(7)
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#define RT9120_MUTE_MASK GENMASK(5, 4)
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#define RT9120_I2SFMT_MASK GENMASK(4, 2)
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#define RT9120_I2SFMT_SHIFT 2
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#define RT9120_CFG_FMT_I2S 0
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#define RT9120_CFG_FMT_LEFTJ 1
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#define RT9120_CFG_FMT_RIGHTJ 2
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#define RT9120_CFG_FMT_DSPA 3
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#define RT9120_CFG_FMT_DSPB 7
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#define RT9120_AUDBIT_MASK GENMASK(1, 0)
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#define RT9120_CFG_AUDBIT_16 0
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#define RT9120_CFG_AUDBIT_20 1
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#define RT9120_CFG_AUDBIT_24 2
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#define RT9120_AUDWL_MASK GENMASK(5, 0)
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#define RT9120_CFG_WORDLEN_16 16
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#define RT9120_CFG_WORDLEN_24 24
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#define RT9120_CFG_WORDLEN_32 32
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#define RT9120_DVDD_UVSEL_MASK GENMASK(5, 4)
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#define RT9120_VENDOR_ID 0x4200
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#define RT9120_RESET_WAITMS 20
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#define RT9120_CHIPON_WAITMS 20
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#define RT9120_AMPON_WAITMS 50
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#define RT9120_AMPOFF_WAITMS 100
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#define RT9120_LVAPP_THRESUV 2000000
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/* 8000 to 192000 supported , only 176400 not support */
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#define RT9120_RATES_MASK (SNDRV_PCM_RATE_8000_192000 &\
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~SNDRV_PCM_RATE_176400)
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#define RT9120_FMTS_MASK (SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S24_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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struct rt9120_data {
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struct device *dev;
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struct regmap *regmap;
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};
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/* 11bit [min,max,step] = [-103.9375dB, 24dB, 0.0625dB] */
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static const DECLARE_TLV_DB_SCALE(digital_tlv, -1039375, 625, 1);
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/* {6, 8, 10, 12, 13, 14, 15, 16}dB */
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static const DECLARE_TLV_DB_RANGE(classd_tlv,
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0, 3, TLV_DB_SCALE_ITEM(600, 200, 0),
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4, 7, TLV_DB_SCALE_ITEM(1300, 100, 0)
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|
);
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static const char * const sdo_select_text[] = {
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"None", "INTF", "Final", "RMS Detect"
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};
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static const struct soc_enum sdo_select_enum =
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SOC_ENUM_SINGLE(RT9120_REG_SDIOSEL, 4, ARRAY_SIZE(sdo_select_text),
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sdo_select_text);
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static const struct snd_kcontrol_new rt9120_snd_controls[] = {
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SOC_SINGLE_TLV("MS Volume", RT9120_REG_MSVOL, 0, 2047, 1, digital_tlv),
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|
SOC_SINGLE_TLV("SPK Gain Volume", RT9120_REG_SPKGAIN, 0, 7, 0, classd_tlv),
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SOC_SINGLE("PBTL Switch", RT9120_REG_SYSCTL, 3, 1, 0),
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|
SOC_ENUM("SDO Select", sdo_select_enum),
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|
};
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|
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|
static int internal_power_event(struct snd_soc_dapm_widget *w,
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|
struct snd_kcontrol *kcontrol, int event)
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|
{
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|
struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
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|
|
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|
switch (event) {
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|
case SND_SOC_DAPM_PRE_PMU:
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|
snd_soc_component_write(comp, RT9120_REG_ERRRPT, 0);
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|
break;
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|
case SND_SOC_DAPM_POST_PMU:
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|
msleep(RT9120_AMPON_WAITMS);
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|
break;
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|
case SND_SOC_DAPM_POST_PMD:
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|
msleep(RT9120_AMPOFF_WAITMS);
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|
break;
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|
default:
|
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|
break;
|
||||||
|
}
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|
|
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|
return 0;
|
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|
}
|
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|
|
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|
static const struct snd_soc_dapm_widget rt9120_dapm_widgets[] = {
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|
SND_SOC_DAPM_MIXER("DMIX", SND_SOC_NOPM, 0, 0, NULL, 0),
|
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|
SND_SOC_DAPM_DAC("LDAC", NULL, SND_SOC_NOPM, 0, 0),
|
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|
SND_SOC_DAPM_DAC("RDAC", NULL, SND_SOC_NOPM, 0, 0),
|
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|
SND_SOC_DAPM_SUPPLY("PWND", RT9120_REG_SYSCTL, 6, 1,
|
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|
internal_power_event, SND_SOC_DAPM_PRE_PMU |
|
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|
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
|
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|
SND_SOC_DAPM_PGA("SPKL PA", SND_SOC_NOPM, 0, 0, NULL, 0),
|
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|
SND_SOC_DAPM_PGA("SPKR PA", SND_SOC_NOPM, 0, 0, NULL, 0),
|
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|
SND_SOC_DAPM_OUTPUT("SPKL"),
|
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|
SND_SOC_DAPM_OUTPUT("SPKR"),
|
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|
};
|
||||||
|
|
||||||
|
static const struct snd_soc_dapm_route rt9120_dapm_routes[] = {
|
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|
{ "DMIX", NULL, "AIF Playback" },
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|
/* SPKL */
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|
{ "LDAC", NULL, "PWND" },
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|
{ "LDAC", NULL, "DMIX" },
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|
{ "SPKL PA", NULL, "LDAC" },
|
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|
{ "SPKL", NULL, "SPKL PA" },
|
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|
/* SPKR */
|
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|
{ "RDAC", NULL, "PWND" },
|
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|
{ "RDAC", NULL, "DMIX" },
|
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|
{ "SPKR PA", NULL, "RDAC" },
|
||||||
|
{ "SPKR", NULL, "SPKR PA" },
|
||||||
|
/* Cap */
|
||||||
|
{ "AIF Capture", NULL, "LDAC" },
|
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|
{ "AIF Capture", NULL, "RDAC" },
|
||||||
|
};
|
||||||
|
|
||||||
|
static int rt9120_codec_probe(struct snd_soc_component *comp)
|
||||||
|
{
|
||||||
|
struct rt9120_data *data = snd_soc_component_get_drvdata(comp);
|
||||||
|
|
||||||
|
snd_soc_component_init_regmap(comp, data->regmap);
|
||||||
|
|
||||||
|
/* Internal setting */
|
||||||
|
snd_soc_component_write(comp, RT9120_REG_INTERNAL1, 0x03);
|
||||||
|
snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x69);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct snd_soc_component_driver rt9120_component_driver = {
|
||||||
|
.probe = rt9120_codec_probe,
|
||||||
|
.controls = rt9120_snd_controls,
|
||||||
|
.num_controls = ARRAY_SIZE(rt9120_snd_controls),
|
||||||
|
.dapm_widgets = rt9120_dapm_widgets,
|
||||||
|
.num_dapm_widgets = ARRAY_SIZE(rt9120_dapm_widgets),
|
||||||
|
.dapm_routes = rt9120_dapm_routes,
|
||||||
|
.num_dapm_routes = ARRAY_SIZE(rt9120_dapm_routes),
|
||||||
|
};
|
||||||
|
|
||||||
|
static int rt9120_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
|
||||||
|
{
|
||||||
|
struct snd_soc_component *comp = dai->component;
|
||||||
|
unsigned int format;
|
||||||
|
|
||||||
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||||
|
case SND_SOC_DAIFMT_I2S:
|
||||||
|
format = RT9120_CFG_FMT_I2S;
|
||||||
|
break;
|
||||||
|
case SND_SOC_DAIFMT_LEFT_J:
|
||||||
|
format = RT9120_CFG_FMT_LEFTJ;
|
||||||
|
break;
|
||||||
|
case SND_SOC_DAIFMT_RIGHT_J:
|
||||||
|
format = RT9120_CFG_FMT_RIGHTJ;
|
||||||
|
break;
|
||||||
|
case SND_SOC_DAIFMT_DSP_A:
|
||||||
|
format = RT9120_CFG_FMT_DSPA;
|
||||||
|
break;
|
||||||
|
case SND_SOC_DAIFMT_DSP_B:
|
||||||
|
format = RT9120_CFG_FMT_DSPB;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(dai->dev, "Unknown dai format\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
snd_soc_component_update_bits(comp, RT9120_REG_I2SFMT,
|
||||||
|
RT9120_I2SFMT_MASK,
|
||||||
|
format << RT9120_I2SFMT_SHIFT);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int rt9120_hw_params(struct snd_pcm_substream *substream,
|
||||||
|
struct snd_pcm_hw_params *param,
|
||||||
|
struct snd_soc_dai *dai)
|
||||||
|
{
|
||||||
|
struct snd_soc_component *comp = dai->component;
|
||||||
|
unsigned int param_width, param_slot_width;
|
||||||
|
int width;
|
||||||
|
|
||||||
|
switch (width = params_width(param)) {
|
||||||
|
case 16:
|
||||||
|
param_width = RT9120_CFG_AUDBIT_16;
|
||||||
|
break;
|
||||||
|
case 20:
|
||||||
|
param_width = RT9120_CFG_AUDBIT_20;
|
||||||
|
break;
|
||||||
|
case 24:
|
||||||
|
case 32:
|
||||||
|
param_width = RT9120_CFG_AUDBIT_24;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(dai->dev, "Unsupported data width [%d]\n", width);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
snd_soc_component_update_bits(comp, RT9120_REG_I2SFMT,
|
||||||
|
RT9120_AUDBIT_MASK, param_width);
|
||||||
|
|
||||||
|
switch (width = params_physical_width(param)) {
|
||||||
|
case 16:
|
||||||
|
param_slot_width = RT9120_CFG_WORDLEN_16;
|
||||||
|
break;
|
||||||
|
case 24:
|
||||||
|
param_slot_width = RT9120_CFG_WORDLEN_24;
|
||||||
|
break;
|
||||||
|
case 32:
|
||||||
|
param_slot_width = RT9120_CFG_WORDLEN_32;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(dai->dev, "Unsupported slot width [%d]\n", width);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
snd_soc_component_update_bits(comp, RT9120_REG_I2SWL,
|
||||||
|
RT9120_AUDWL_MASK, param_slot_width);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct snd_soc_dai_ops rt9120_dai_ops = {
|
||||||
|
.set_fmt = rt9120_set_fmt,
|
||||||
|
.hw_params = rt9120_hw_params,
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct snd_soc_dai_driver rt9120_dai = {
|
||||||
|
.name = "rt9120_aif",
|
||||||
|
.playback = {
|
||||||
|
.stream_name = "AIF Playback",
|
||||||
|
.rates = RT9120_RATES_MASK,
|
||||||
|
.formats = RT9120_FMTS_MASK,
|
||||||
|
.rate_max = 192000,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.channels_min = 1,
|
||||||
|
.channels_max = 2,
|
||||||
|
},
|
||||||
|
.capture = {
|
||||||
|
.stream_name = "AIF Capture",
|
||||||
|
.rates = RT9120_RATES_MASK,
|
||||||
|
.formats = RT9120_FMTS_MASK,
|
||||||
|
.rate_max = 192000,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.channels_min = 1,
|
||||||
|
.channels_max = 2,
|
||||||
|
},
|
||||||
|
.ops = &rt9120_dai_ops,
|
||||||
|
.symmetric_rate = 1,
|
||||||
|
.symmetric_sample_bits = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_range rt9120_rd_yes_ranges[] = {
|
||||||
|
regmap_reg_range(0x00, 0x0C),
|
||||||
|
regmap_reg_range(0x10, 0x15),
|
||||||
|
regmap_reg_range(0x20, 0x27),
|
||||||
|
regmap_reg_range(0x30, 0x38),
|
||||||
|
regmap_reg_range(0x3A, 0x40),
|
||||||
|
regmap_reg_range(0x65, 0x65),
|
||||||
|
regmap_reg_range(0x69, 0x69),
|
||||||
|
regmap_reg_range(0x6C, 0x6C)
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_access_table rt9120_rd_table = {
|
||||||
|
.yes_ranges = rt9120_rd_yes_ranges,
|
||||||
|
.n_yes_ranges = ARRAY_SIZE(rt9120_rd_yes_ranges),
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_range rt9120_wr_yes_ranges[] = {
|
||||||
|
regmap_reg_range(0x00, 0x00),
|
||||||
|
regmap_reg_range(0x02, 0x0A),
|
||||||
|
regmap_reg_range(0x10, 0x15),
|
||||||
|
regmap_reg_range(0x20, 0x27),
|
||||||
|
regmap_reg_range(0x30, 0x38),
|
||||||
|
regmap_reg_range(0x3A, 0x3D),
|
||||||
|
regmap_reg_range(0x40, 0x40),
|
||||||
|
regmap_reg_range(0x65, 0x65),
|
||||||
|
regmap_reg_range(0x69, 0x69),
|
||||||
|
regmap_reg_range(0x6C, 0x6C)
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_access_table rt9120_wr_table = {
|
||||||
|
.yes_ranges = rt9120_wr_yes_ranges,
|
||||||
|
.n_yes_ranges = ARRAY_SIZE(rt9120_wr_yes_ranges),
|
||||||
|
};
|
||||||
|
|
||||||
|
static int rt9120_get_reg_size(unsigned int reg)
|
||||||
|
{
|
||||||
|
switch (reg) {
|
||||||
|
case 0x00:
|
||||||
|
case 0x09:
|
||||||
|
case 0x20 ... 0x27:
|
||||||
|
return 2;
|
||||||
|
case 0x30 ... 0x3D:
|
||||||
|
return 3;
|
||||||
|
case 0x3E ... 0x3F:
|
||||||
|
return 4;
|
||||||
|
default:
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int rt9120_reg_read(void *context, unsigned int reg, unsigned int *val)
|
||||||
|
{
|
||||||
|
struct rt9120_data *data = context;
|
||||||
|
struct i2c_client *i2c = to_i2c_client(data->dev);
|
||||||
|
int size = rt9120_get_reg_size(reg);
|
||||||
|
u8 raw[4] = {0};
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = i2c_smbus_read_i2c_block_data(i2c, reg, size, raw);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
else if (ret != size)
|
||||||
|
return -EIO;
|
||||||
|
|
||||||
|
switch (size) {
|
||||||
|
case 4:
|
||||||
|
*val = be32_to_cpup((__be32 *)raw);
|
||||||
|
break;
|
||||||
|
case 3:
|
||||||
|
*val = raw[0] << 16 | raw[1] << 8 | raw[0];
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
*val = be16_to_cpup((__be16 *)raw);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
*val = raw[0];
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int rt9120_reg_write(void *context, unsigned int reg, unsigned int val)
|
||||||
|
{
|
||||||
|
struct rt9120_data *data = context;
|
||||||
|
struct i2c_client *i2c = to_i2c_client(data->dev);
|
||||||
|
int size = rt9120_get_reg_size(reg);
|
||||||
|
__be32 be32_val;
|
||||||
|
u8 *rawp = (u8 *)&be32_val;
|
||||||
|
int offs = 4 - size;
|
||||||
|
|
||||||
|
be32_val = cpu_to_be32(val);
|
||||||
|
return i2c_smbus_write_i2c_block_data(i2c, reg, size, rawp + offs);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct regmap_config rt9120_regmap_config = {
|
||||||
|
.reg_bits = 8,
|
||||||
|
.val_bits = 32,
|
||||||
|
.max_register = RT9120_REG_UVPOPT,
|
||||||
|
|
||||||
|
.reg_read = rt9120_reg_read,
|
||||||
|
.reg_write = rt9120_reg_write,
|
||||||
|
|
||||||
|
.wr_table = &rt9120_wr_table,
|
||||||
|
.rd_table = &rt9120_rd_table,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int rt9120_check_vendor_info(struct rt9120_data *data)
|
||||||
|
{
|
||||||
|
unsigned int devid;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = regmap_read(data->regmap, RT9120_REG_DEVID, &devid);
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
if ((devid & RT9120_VID_MASK) != RT9120_VENDOR_ID) {
|
||||||
|
dev_err(data->dev, "DEVID not correct [0x%04x]\n", devid);
|
||||||
|
return -ENODEV;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int rt9120_do_register_reset(struct rt9120_data *data)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = regmap_write(data->regmap, RT9120_REG_SWRESET,
|
||||||
|
RT9120_SWRST_MASK);
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
msleep(RT9120_RESET_WAITMS);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int rt9120_probe(struct i2c_client *i2c)
|
||||||
|
{
|
||||||
|
struct rt9120_data *data;
|
||||||
|
struct gpio_desc *pwdnn_gpio;
|
||||||
|
struct regulator *dvdd_supply;
|
||||||
|
int dvdd_supply_volt, ret;
|
||||||
|
|
||||||
|
data = devm_kzalloc(&i2c->dev, sizeof(*data), GFP_KERNEL);
|
||||||
|
if (!data)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
|
data->dev = &i2c->dev;
|
||||||
|
i2c_set_clientdata(i2c, data);
|
||||||
|
|
||||||
|
pwdnn_gpio = devm_gpiod_get_optional(&i2c->dev, "pwdnn",
|
||||||
|
GPIOD_OUT_HIGH);
|
||||||
|
if (IS_ERR(pwdnn_gpio)) {
|
||||||
|
dev_err(&i2c->dev, "Failed to initialize 'pwdnn' gpio\n");
|
||||||
|
return PTR_ERR(pwdnn_gpio);
|
||||||
|
} else if (pwdnn_gpio) {
|
||||||
|
dev_dbg(&i2c->dev, "'pwdnn' from low to high, wait chip on\n");
|
||||||
|
msleep(RT9120_CHIPON_WAITMS);
|
||||||
|
}
|
||||||
|
|
||||||
|
data->regmap = devm_regmap_init(&i2c->dev, NULL, data,
|
||||||
|
&rt9120_regmap_config);
|
||||||
|
if (IS_ERR(data->regmap)) {
|
||||||
|
ret = PTR_ERR(data->regmap);
|
||||||
|
dev_err(&i2c->dev, "Failed to init regmap [%d]\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = rt9120_check_vendor_info(data);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&i2c->dev, "Failed to check vendor info\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = rt9120_do_register_reset(data);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&i2c->dev, "Failed to do register reset\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
dvdd_supply = devm_regulator_get(&i2c->dev, "dvdd");
|
||||||
|
if (IS_ERR(dvdd_supply)) {
|
||||||
|
dev_err(&i2c->dev, "No dvdd regulator found\n");
|
||||||
|
return PTR_ERR(dvdd_supply);
|
||||||
|
}
|
||||||
|
|
||||||
|
dvdd_supply_volt = regulator_get_voltage(dvdd_supply);
|
||||||
|
if (dvdd_supply_volt <= RT9120_LVAPP_THRESUV) {
|
||||||
|
dev_dbg(&i2c->dev, "dvdd low voltage design\n");
|
||||||
|
ret = regmap_update_bits(data->regmap, RT9120_REG_UVPOPT,
|
||||||
|
RT9120_DVDD_UVSEL_MASK, 0);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&i2c->dev, "Failed to config dvdd uvsel\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return devm_snd_soc_register_component(&i2c->dev,
|
||||||
|
&rt9120_component_driver,
|
||||||
|
&rt9120_dai, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct of_device_id __maybe_unused rt9120_device_table[] = {
|
||||||
|
{ .compatible = "richtek,rt9120", },
|
||||||
|
{ }
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(of, rt9120_device_table);
|
||||||
|
|
||||||
|
static struct i2c_driver rt9120_driver = {
|
||||||
|
.driver = {
|
||||||
|
.name = "rt9120",
|
||||||
|
.of_match_table = rt9120_device_table,
|
||||||
|
},
|
||||||
|
.probe_new = rt9120_probe,
|
||||||
|
};
|
||||||
|
module_i2c_driver(rt9120_driver);
|
||||||
|
|
||||||
|
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
||||||
|
MODULE_DESCRIPTION("RT9120 Audio Amplifier Driver");
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
Loading…
Reference in New Issue
Block a user