/* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only 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. * * max98357a.c -- MAX98357A ALSA SoC Codec driver */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include static int max98357a_daiops_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct gpio_desc *sdmode = snd_soc_dai_get_drvdata(dai); if (!sdmode) return 0; switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: gpiod_set_value(sdmode, 1); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: gpiod_set_value(sdmode, 0); break; } return 0; } static const struct snd_soc_dapm_widget max98357a_dapm_widgets[] = { SND_SOC_DAPM_OUTPUT("Speaker"), }; static const struct snd_soc_dapm_route max98357a_dapm_routes[] = { {"Speaker", NULL, "HiFi Playback"}, }; static int max98357a_codec_probe(struct snd_soc_codec *codec) { struct gpio_desc *sdmode; sdmode = devm_gpiod_get_optional(codec->dev, "sdmode", GPIOD_OUT_LOW); if (IS_ERR(sdmode)) return PTR_ERR(sdmode); snd_soc_codec_set_drvdata(codec, sdmode); return 0; } static struct snd_soc_codec_driver max98357a_codec_driver = { .probe = max98357a_codec_probe, .component_driver = { .dapm_widgets = max98357a_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(max98357a_dapm_widgets), .dapm_routes = max98357a_dapm_routes, .num_dapm_routes = ARRAY_SIZE(max98357a_dapm_routes), }, }; static const struct snd_soc_dai_ops max98357a_dai_ops = { .trigger = max98357a_daiops_trigger, }; static struct snd_soc_dai_driver max98357a_dai_driver = { .name = "HiFi", .playback = { .stream_name = "HiFi Playback", .formats = SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_S32, .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000, .rate_min = 8000, .rate_max = 96000, .channels_min = 1, .channels_max = 2, }, .ops = &max98357a_dai_ops, }; static int max98357a_platform_probe(struct platform_device *pdev) { return snd_soc_register_codec(&pdev->dev, &max98357a_codec_driver, &max98357a_dai_driver, 1); } static int max98357a_platform_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } #ifdef CONFIG_OF static const struct of_device_id max98357a_device_id[] = { { .compatible = "maxim,max98357a" }, {} }; MODULE_DEVICE_TABLE(of, max98357a_device_id); #endif #ifdef CONFIG_ACPI static const struct acpi_device_id max98357a_acpi_match[] = { { "MX98357A", 0 }, {}, }; MODULE_DEVICE_TABLE(acpi, max98357a_acpi_match); #endif static struct platform_driver max98357a_platform_driver = { .driver = { .name = "max98357a", .of_match_table = of_match_ptr(max98357a_device_id), .acpi_match_table = ACPI_PTR(max98357a_acpi_match), }, .probe = max98357a_platform_probe, .remove = max98357a_platform_remove, }; module_platform_driver(max98357a_platform_driver); MODULE_DESCRIPTION("Maxim MAX98357A Codec Driver"); MODULE_LICENSE("GPL v2"); ='0' selected='selected'>unified
authorRob Rice <rob.rice@broadcom.com>2016-11-14 13:26:04 -0500
committerJassi Brar <jaswinder.singh@linaro.org>2016-12-19 20:10:22 +0530
commit30d1ef623fd1e99bc1bab5211ba1da0d97d40e64 (patch)
tree258bd7a69ff0fd8f529b9d6f49bd81ea8fe3e0f1
parent63bb50bdb997f4bede1b5f2d56645f393f7f39fb (diff)
mailbox: bcm-pdc: Simplify interrupt handler logic
Earlier versions of the PDC driver registered for both transmit and receive interrupts. The hard IRQ handler had to communicate to the soft handler which interrupt(s) had occurred. The PDC driver no longer registers for tx interrupts. So there is no reason to save the intstatus. So remove the intstatus member of the PDC state. Signed-off-by: Rob Rice <rob.rice@broadcom.com> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>