diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0076-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0076-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch | 667 |
1 files changed, 0 insertions, 667 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0076-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch b/target/linux/brcm2708/patches-4.19/950-0076-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch deleted file mode 100644 index 9b0750f24b..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0076-Add-support-for-Allo-Boss-DAC-add-on-board-for-Raspb.patch +++ /dev/null @@ -1,667 +0,0 @@ -From 77dce745cd500cbe65e4cbb613c27c23e26f5bbb Mon Sep 17 00:00:00 2001 -From: BabuSubashChandar <babuenir@gmail.com> -Date: Tue, 28 Mar 2017 20:04:42 +0530 -Subject: [PATCH] Add support for Allo Boss DAC add-on board for - Raspberry Pi. (#1924) - -Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> -Reviewed-by: Deepak <deepak@zilogic.com> -Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com> - -Add support for new clock rate and mute gpios. - -Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> -Reviewed-by: Deepak <deepak@zilogic.com> -Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com> - -ASoC: allo-boss-dac: fix S24_LE format - -Remove set_bclk_ratio call so 24-bit data is transmitted in -24 bclk cycles. - -Signed-off-by: Matthias Reichl <hias@horus.com> - -ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - drivers/clk/Makefile | 1 + - drivers/clk/clk-allo-dac.c | 161 ++++++++++++ - sound/soc/bcm/allo-boss-dac.c | 456 ++++++++++++++++++++++++++++++++++ - 3 files changed, 618 insertions(+) - create mode 100644 drivers/clk/clk-allo-dac.c - create mode 100644 sound/soc/bcm/allo-boss-dac.c - ---- a/drivers/clk/Makefile -+++ b/drivers/clk/Makefile -@@ -18,6 +18,7 @@ endif - - # hardware specific clock types - # please keep this section sorted lexicographically by file path name -+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += clk-allo-dac.o - obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o - obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o - obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o ---- /dev/null -+++ b/drivers/clk/clk-allo-dac.c -@@ -0,0 +1,161 @@ -+/* -+ * Clock Driver for Allo DAC -+ * -+ * Author: Baswaraj K <jaikumar@cem-solutions.net> -+ * Copyright 2016 -+ * based on code by Stuart MacLean -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * version 2 as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, but -+ * WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ */ -+ -+#include <linux/clk-provider.h> -+#include <linux/clkdev.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/of.h> -+#include <linux/slab.h> -+#include <linux/platform_device.h> -+ -+/* Clock rate of CLK44EN attached to GPIO6 pin */ -+#define CLK_44EN_RATE 45158400UL -+/* Clock rate of CLK48EN attached to GPIO3 pin */ -+#define CLK_48EN_RATE 49152000UL -+ -+/** -+ * struct allo_dac_clk - Common struct to the Allo DAC -+ * @hw: clk_hw for the common clk framework -+ * @mode: 0 => CLK44EN, 1 => CLK48EN -+ */ -+struct clk_allo_hw { -+ struct clk_hw hw; -+ uint8_t mode; -+}; -+ -+#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw) -+ -+static const struct of_device_id clk_allo_dac_dt_ids[] = { -+ { .compatible = "allo,dac-clk",}, -+ { } -+}; -+MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids); -+ -+static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw, -+ unsigned long parent_rate) -+{ -+ return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE : -+ CLK_48EN_RATE; -+} -+ -+static long clk_allo_dac_round_rate(struct clk_hw *hw, -+ unsigned long rate, unsigned long *parent_rate) -+{ -+ long actual_rate; -+ -+ if (rate <= CLK_44EN_RATE) { -+ actual_rate = (long)CLK_44EN_RATE; -+ } else if (rate >= CLK_48EN_RATE) { -+ actual_rate = (long)CLK_48EN_RATE; -+ } else { -+ long diff44Rate = (long)(rate - CLK_44EN_RATE); -+ long diff48Rate = (long)(CLK_48EN_RATE - rate); -+ -+ if (diff44Rate < diff48Rate) -+ actual_rate = (long)CLK_44EN_RATE; -+ else -+ actual_rate = (long)CLK_48EN_RATE; -+ } -+ return actual_rate; -+} -+ -+ -+static int clk_allo_dac_set_rate(struct clk_hw *hw, -+ unsigned long rate, unsigned long parent_rate) -+{ -+ unsigned long actual_rate; -+ struct clk_allo_hw *clk = to_allo_clk(hw); -+ -+ actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate, -+ &parent_rate); -+ clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1; -+ return 0; -+} -+ -+ -+const struct clk_ops clk_allo_dac_rate_ops = { -+ .recalc_rate = clk_allo_dac_recalc_rate, -+ .round_rate = clk_allo_dac_round_rate, -+ .set_rate = clk_allo_dac_set_rate, -+}; -+ -+static int clk_allo_dac_probe(struct platform_device *pdev) -+{ -+ int ret; -+ struct clk_allo_hw *proclk; -+ struct clk *clk; -+ struct device *dev; -+ struct clk_init_data init; -+ -+ dev = &pdev->dev; -+ -+ proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL); -+ if (!proclk) -+ return -ENOMEM; -+ -+ init.name = "clk-allo-dac"; -+ init.ops = &clk_allo_dac_rate_ops; -+ init.flags = CLK_IS_BASIC; -+ init.parent_names = NULL; -+ init.num_parents = 0; -+ -+ proclk->mode = 0; -+ proclk->hw.init = &init; -+ -+ clk = devm_clk_register(dev, &proclk->hw); -+ if (!IS_ERR(clk)) { -+ ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get, -+ clk); -+ } else { -+ dev_err(dev, "Fail to register clock driver\n"); -+ kfree(proclk); -+ ret = PTR_ERR(clk); -+ } -+ return ret; -+} -+ -+static int clk_allo_dac_remove(struct platform_device *pdev) -+{ -+ of_clk_del_provider(pdev->dev.of_node); -+ return 0; -+} -+ -+static struct platform_driver clk_allo_dac_driver = { -+ .probe = clk_allo_dac_probe, -+ .remove = clk_allo_dac_remove, -+ .driver = { -+ .name = "clk-allo-dac", -+ .of_match_table = clk_allo_dac_dt_ids, -+ }, -+}; -+ -+static int __init clk_allo_dac_init(void) -+{ -+ return platform_driver_register(&clk_allo_dac_driver); -+} -+core_initcall(clk_allo_dac_init); -+ -+static void __exit clk_allo_dac_exit(void) -+{ -+ platform_driver_unregister(&clk_allo_dac_driver); -+} -+module_exit(clk_allo_dac_exit); -+ -+MODULE_DESCRIPTION("Allo DAC clock driver"); -+MODULE_LICENSE("GPL v2"); -+MODULE_ALIAS("platform:clk-allo-dac"); ---- /dev/null -+++ b/sound/soc/bcm/allo-boss-dac.c -@@ -0,0 +1,456 @@ -+/* -+ * ALSA ASoC Machine Driver for Allo Boss DAC -+ * -+ * Author: Baswaraj K <jaikumar@cem-solutions.net> -+ * Copyright 2017 -+ * based on code by Daniel Matuschek, -+ * Stuart MacLean <stuart@hifiberry.com> -+ * based on code by Florian Meier <florian.meier@koalo.de> -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * version 2 as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, but -+ * WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ */ -+ -+#include <linux/module.h> -+#include <linux/gpio/consumer.h> -+#include <linux/platform_device.h> -+#include <linux/clk.h> -+#include <linux/delay.h> -+ -+#include <sound/core.h> -+#include <sound/pcm.h> -+#include <sound/pcm_params.h> -+#include <sound/soc.h> -+#include "../codecs/pcm512x.h" -+ -+#define ALLO_BOSS_NOCLOCK 0 -+#define ALLO_BOSS_CLK44EN 1 -+#define ALLO_BOSS_CLK48EN 2 -+ -+struct pcm512x_priv { -+ struct regmap *regmap; -+ struct clk *sclk; -+}; -+ -+static struct gpio_desc *mute_gpio; -+ -+/* Clock rate of CLK44EN attached to GPIO6 pin */ -+#define CLK_44EN_RATE 45158400UL -+/* Clock rate of CLK48EN attached to GPIO3 pin */ -+#define CLK_48EN_RATE 49152000UL -+ -+static bool slave; -+static bool snd_soc_allo_boss_master; -+static bool digital_gain_0db_limit = true; -+ -+static void snd_allo_boss_select_clk(struct snd_soc_component *component, -+ int clk_id) -+{ -+ switch (clk_id) { -+ case ALLO_BOSS_NOCLOCK: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00); -+ break; -+ case ALLO_BOSS_CLK44EN: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20); -+ break; -+ case ALLO_BOSS_CLK48EN: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04); -+ break; -+ } -+} -+ -+static void snd_allo_boss_clk_gpio(struct snd_soc_component *component) -+{ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02); -+} -+ -+static bool snd_allo_boss_is_sclk(struct snd_soc_component *component) -+{ -+ unsigned int sck; -+ -+ snd_soc_component_read(component, PCM512x_RATE_DET_4, &sck); -+ return (!(sck & 0x40)); -+} -+ -+static bool snd_allo_boss_is_sclk_sleep( -+ struct snd_soc_component *component) -+{ -+ msleep(2); -+ return snd_allo_boss_is_sclk(component); -+} -+ -+static bool snd_allo_boss_is_master_card(struct snd_soc_component *component) -+{ -+ bool isClk44EN, isClk48En, isNoClk; -+ -+ snd_allo_boss_clk_gpio(component); -+ -+ snd_allo_boss_select_clk(component, ALLO_BOSS_CLK44EN); -+ isClk44EN = snd_allo_boss_is_sclk_sleep(component); -+ -+ snd_allo_boss_select_clk(component, ALLO_BOSS_NOCLOCK); -+ isNoClk = snd_allo_boss_is_sclk_sleep(component); -+ -+ snd_allo_boss_select_clk(component, ALLO_BOSS_CLK48EN); -+ isClk48En = snd_allo_boss_is_sclk_sleep(component); -+ -+ return (isClk44EN && isClk48En && !isNoClk); -+} -+ -+static int snd_allo_boss_clk_for_rate(int sample_rate) -+{ -+ int type; -+ -+ switch (sample_rate) { -+ case 11025: -+ case 22050: -+ case 44100: -+ case 88200: -+ case 176400: -+ case 352800: -+ type = ALLO_BOSS_CLK44EN; -+ break; -+ default: -+ type = ALLO_BOSS_CLK48EN; -+ break; -+ } -+ return type; -+} -+ -+static void snd_allo_boss_set_sclk(struct snd_soc_component *component, -+ int sample_rate) -+{ -+ struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); -+ -+ if (!IS_ERR(pcm512x->sclk)) { -+ int ctype; -+ -+ ctype = snd_allo_boss_clk_for_rate(sample_rate); -+ clk_set_rate(pcm512x->sclk, (ctype == ALLO_BOSS_CLK44EN) -+ ? CLK_44EN_RATE : CLK_48EN_RATE); -+ snd_allo_boss_select_clk(component, ctype); -+ } -+} -+ -+static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component); -+ -+ if (slave) -+ snd_soc_allo_boss_master = false; -+ else -+ snd_soc_allo_boss_master = -+ snd_allo_boss_is_master_card(component); -+ -+ if (snd_soc_allo_boss_master) { -+ struct snd_soc_dai_link *dai = rtd->dai_link; -+ -+ dai->name = "BossDAC"; -+ dai->stream_name = "Boss DAC HiFi [Master]"; -+ dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF -+ | SND_SOC_DAIFMT_CBM_CFM; -+ -+ snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); -+ snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03); -+ snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); -+ /* -+ * Default sclk to CLK_48EN_RATE, otherwise codec -+ * pcm512x_dai_startup_master method could call -+ * snd_pcm_hw_constraint_ratnums using CLK_44EN/64 -+ * which will mask 384k sample rate. -+ */ -+ if (!IS_ERR(priv->sclk)) -+ clk_set_rate(priv->sclk, CLK_48EN_RATE); -+ } else { -+ priv->sclk = ERR_PTR(-ENOENT); -+ } -+ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); -+ -+ if (digital_gain_0db_limit) { -+ int ret; -+ struct snd_soc_card *card = rtd->card; -+ -+ ret = snd_soc_limit_volume(card, "Digital Playback Volume", -+ 207); -+ if (ret < 0) -+ dev_warn(card->dev, "Failed to set volume limit: %d\n", -+ ret); -+ } -+ -+ return 0; -+} -+ -+static int snd_allo_boss_update_rate_den( -+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); -+ struct snd_ratnum *rats_no_pll; -+ unsigned int num = 0, den = 0; -+ int err; -+ -+ rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL); -+ if (!rats_no_pll) -+ return -ENOMEM; -+ -+ rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64; -+ rats_no_pll->den_min = 1; -+ rats_no_pll->den_max = 128; -+ rats_no_pll->den_step = 1; -+ -+ err = snd_interval_ratnum(hw_param_interval(params, -+ SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den); -+ if (err >= 0 && den) { -+ params->rate_num = num; -+ params->rate_den = den; -+ } -+ -+ devm_kfree(rtd->dev, rats_no_pll); -+ return 0; -+} -+ -+static void snd_allo_boss_gpio_mute(struct snd_soc_card *card) -+{ -+ if (mute_gpio) -+ gpiod_set_value_cansleep(mute_gpio, 1); -+} -+ -+static void snd_allo_boss_gpio_unmute(struct snd_soc_card *card) -+{ -+ if (mute_gpio) -+ gpiod_set_value_cansleep(mute_gpio, 0); -+} -+ -+static int snd_allo_boss_set_bias_level(struct snd_soc_card *card, -+ struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) -+{ -+ struct snd_soc_pcm_runtime *rtd; -+ struct snd_soc_dai *codec_dai; -+ -+ rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); -+ codec_dai = rtd->codec_dai; -+ -+ if (dapm->dev != codec_dai->dev) -+ return 0; -+ -+ switch (level) { -+ case SND_SOC_BIAS_PREPARE: -+ if (dapm->bias_level != SND_SOC_BIAS_STANDBY) -+ break; -+ /* UNMUTE DAC */ -+ snd_allo_boss_gpio_unmute(card); -+ break; -+ -+ case SND_SOC_BIAS_STANDBY: -+ if (dapm->bias_level != SND_SOC_BIAS_PREPARE) -+ break; -+ /* MUTE DAC */ -+ snd_allo_boss_gpio_mute(card); -+ break; -+ -+ default: -+ break; -+ } -+ -+ return 0; -+} -+ -+static int snd_allo_boss_hw_params( -+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) -+{ -+ int ret = 0; -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ int channels = params_channels(params); -+ int width = snd_pcm_format_physical_width(params_format(params)); -+ -+ if (snd_soc_allo_boss_master) { -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ -+ snd_allo_boss_set_sclk(component, -+ params_rate(params)); -+ -+ ret = snd_allo_boss_update_rate_den( -+ substream, params); -+ if (ret) -+ return ret; -+ } -+ -+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x03, 0x03, -+ channels, width); -+ if (ret) -+ return ret; -+ ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03, -+ channels, width); -+ return ret; -+} -+ -+static int snd_allo_boss_startup( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ struct snd_soc_card *card = rtd->card; -+ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); -+ snd_allo_boss_gpio_mute(card); -+ -+ if (snd_soc_allo_boss_master) { -+ struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component); -+ /* -+ * Default sclk to CLK_48EN_RATE, otherwise codec -+ * pcm512x_dai_startup_master method could call -+ * snd_pcm_hw_constraint_ratnums using CLK_44EN/64 -+ * which will mask 384k sample rate. -+ */ -+ if (!IS_ERR(priv->sclk)) -+ clk_set_rate(priv->sclk, CLK_48EN_RATE); -+ } -+ -+ return 0; -+} -+ -+static void snd_allo_boss_shutdown( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); -+} -+ -+static int snd_allo_boss_prepare( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_card *card = rtd->card; -+ -+ snd_allo_boss_gpio_unmute(card); -+ return 0; -+} -+/* machine stream operations */ -+static struct snd_soc_ops snd_allo_boss_ops = { -+ .hw_params = snd_allo_boss_hw_params, -+ .startup = snd_allo_boss_startup, -+ .shutdown = snd_allo_boss_shutdown, -+ .prepare = snd_allo_boss_prepare, -+}; -+ -+static struct snd_soc_dai_link snd_allo_boss_dai[] = { -+{ -+ .name = "Boss DAC", -+ .stream_name = "Boss DAC HiFi", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .codec_dai_name = "pcm512x-hifi", -+ .platform_name = "bcm2708-i2s.0", -+ .codec_name = "pcm512x.1-004d", -+ .dai_fmt = SND_SOC_DAIFMT_I2S | -+ SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .ops = &snd_allo_boss_ops, -+ .init = snd_allo_boss_init, -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_allo_boss = { -+ .name = "BossDAC", -+ .owner = THIS_MODULE, -+ .dai_link = snd_allo_boss_dai, -+ .num_links = ARRAY_SIZE(snd_allo_boss_dai), -+}; -+ -+static int snd_allo_boss_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_allo_boss.dev = &pdev->dev; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai; -+ -+ dai = &snd_allo_boss_dai[0]; -+ i2s_node = of_parse_phandle(pdev->dev.of_node, -+ "i2s-controller", 0); -+ -+ if (i2s_node) { -+ dai->cpu_dai_name = NULL; -+ dai->cpu_of_node = i2s_node; -+ dai->platform_name = NULL; -+ dai->platform_of_node = i2s_node; -+ } -+ -+ digital_gain_0db_limit = !of_property_read_bool( -+ pdev->dev.of_node, "allo,24db_digital_gain"); -+ slave = of_property_read_bool(pdev->dev.of_node, -+ "allo,slave"); -+ -+ mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", -+ GPIOD_OUT_LOW); -+ if (IS_ERR(mute_gpio)) { -+ ret = PTR_ERR(mute_gpio); -+ dev_err(&pdev->dev, -+ "failed to get mute gpio: %d\n", ret); -+ return ret; -+ } -+ -+ if (mute_gpio) -+ snd_allo_boss.set_bias_level = -+ snd_allo_boss_set_bias_level; -+ -+ ret = snd_soc_register_card(&snd_allo_boss); -+ if (ret) { -+ dev_err(&pdev->dev, -+ "snd_soc_register_card() failed: %d\n", ret); -+ return ret; -+ } -+ -+ if (mute_gpio) -+ snd_allo_boss_gpio_mute(&snd_allo_boss); -+ -+ return 0; -+ } -+ -+ return -EINVAL; -+} -+ -+static int snd_allo_boss_remove(struct platform_device *pdev) -+{ -+ snd_allo_boss_gpio_mute(&snd_allo_boss); -+ return snd_soc_unregister_card(&snd_allo_boss); -+} -+ -+static const struct of_device_id snd_allo_boss_of_match[] = { -+ { .compatible = "allo,boss-dac", }, -+ { /* sentinel */ }, -+}; -+MODULE_DEVICE_TABLE(of, snd_allo_boss_of_match); -+ -+static struct platform_driver snd_allo_boss_driver = { -+ .driver = { -+ .name = "snd-allo-boss-dac", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_allo_boss_of_match, -+ }, -+ .probe = snd_allo_boss_probe, -+ .remove = snd_allo_boss_remove, -+}; -+ -+module_platform_driver(snd_allo_boss_driver); -+ -+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>"); -+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Boss DAC"); -+MODULE_LICENSE("GPL v2"); |