/* * Machine driver for EVAL-ADAU1701MINIZ on Analog Devices bfin * evaluation boards. * * Copyright 2011 Analog Devices Inc. * Author: Lars-Peter Clausen * * Licensed under the GPL-2 or later. */ #include #include #include #include #include #include #include "../codecs/adau1701.h" static const struct snd_soc_dapm_widget bfin_eval_adau1701_dapm_widgets[] = { SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_LINE("Line Out", NULL), SND_SOC_DAPM_LINE("Line In", NULL), }; static const struct snd_soc_dapm_route bfin_eval_adau1701_dapm_routes[] = { { "Speaker", NULL, "OUT0" }, { "Speaker", NULL, "OUT1" }, { "Line Out", NULL, "OUT2" }, { "Line Out", NULL, "OUT3" }, { "IN0", NULL, "Line In" }, { "IN1", NULL, "Line In" }, }; static int bfin_eval_adau1701_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000, SND_SOC_CLOCK_IN); return ret; } static struct snd_soc_ops bfin_eval_adau1701_ops = { .hw_params = bfin_eval_adau1701_hw_params, }; #define BFIN_EVAL_ADAU1701_DAI_FMT (SND_SOC_DAIFMT_I2S | \ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM) static struct snd_soc_dai_link bfin_eval_adau1701_dai[] = { { .name = "adau1701", .stream_name = "adau1701", .cpu_dai_name = "bfin-i2s.0", .codec_dai_name = "adau1701", .platform_name = "bfin-i2s-pcm-audio", .codec_name = "adau1701.0-0034", .ops = &bfin_eval_adau1701_ops, .dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT, }, { .name = "adau1701", .stream_name = "adau1701", .cpu_dai_name = "bfin-i2s.1", .codec_dai_name = "adau1701", .platform_name = "bfin-i2s-pcm-audio", .codec_name = "adau1701.0-0034", .ops = &bfin_eval_adau1701_ops, .dai_fmt = BFIN_EVAL_ADAU1701_DAI_FMT, }, }; static struct snd_soc_card bfin_eval_adau1701 = { .name = "bfin-eval-adau1701", .owner = THIS_MODULE, .dai_link = &bfin_eval_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM], .num_links = 1, .dapm_widgets = bfin_eval_adau1701_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1701_dapm_widgets), .dapm_routes = bfin_eval_adau1701_dapm_routes, .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1701_dapm_routes), }; static int bfin_eval_adau1701_probe(struct platform_device *pdev) { struct snd_soc_card *card = &bfin_eval_adau1701; card->dev = &pdev->dev; return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1701); } static struct platform_driver bfin_eval_adau1701_driver = { .driver = { .name = "bfin-eval-adau1701", .pm = &snd_soc_pm_ops, }, .probe = bfin_eval_adau1701_probe, }; module_platform_driver(bfin_eval_adau1701_driver); MODULE_AUTHOR("Lars-Peter Clausen "); MODULE_DESCRIPTION("ALSA SoC bfin ADAU1701 driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:bfin-eval-adau1701"); ?id=b2d60415684663d9dfc616ed97a6f78b3c73c29a'>target_core_backend.h
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authorJisheng Zhang <jszhang@marvell.com>2016-11-10 17:21:29 +0800
committerMark Brown <broonie@kernel.org>2016-11-11 15:38:08 +0000
commit09f2ba0b0b7c44ecea49cf69a708203b76ba5535 (patch)
tree042df33ac99f77d8b86ac427431e267c33561c35 /security
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER -EINVAL and so on. Currently, for the optional property "enable-gpio", we only check -EPROBE_DEFER, this is not enough since there may be misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return -EINVAL in this case, we should return immediately here. And for the optional property "gpios", we didn't check the return value, the driver will continue to the point where gpio_request_array() is called, it doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here. This patch tries to address these two issues by properly checking the return value of of_get_named_gpio. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'security')