efc913c8fb
Along with the recent unification of snd_soc_component_read*()
functions, the behavior of snd_soc_component_read() was changed
slightly; namely it returns the register read value directly, and even
if an error happens, it returns zero (but it prints an error
message). That said, the caller side can't know whether it's an error
or not any longer.
Ideally this shouldn't matter much, but in practice this seems causing
a regression, as John reported. And, grepping the tree revealed that
there are still plenty of callers that do check the error code, so
we'll need to deal with them in anyway.
As a quick band-aid over the regression, this patch changes the return
value of snd_soc_component_read() again to the negative error code.
It can't work, obviously, for 32bit register values, but it should be
enough for the known regressions, so far.
Fixes: cf6e26c71b ("ASoC: soc-component: merge snd_soc_component_read() and snd_soc_component_read32()")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200810134631.19742-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
808 lines
21 KiB
C
808 lines
21 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// soc-component.c
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//
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// Copyright 2009-2011 Wolfson Microelectronics PLC.
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// Copyright (C) 2019 Renesas Electronics Corp.
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//
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// Mark Brown <broonie@opensource.wolfsonmicro.com>
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// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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//
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#include <linux/module.h>
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#include <sound/soc.h>
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#define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret)
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static inline int _soc_component_ret(struct snd_soc_component *component,
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const char *func, int ret)
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{
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/* Positive/Zero values are not errors */
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if (ret >= 0)
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return ret;
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/* Negative values might be errors */
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switch (ret) {
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case -EPROBE_DEFER:
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case -ENOTSUPP:
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break;
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default:
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dev_err(component->dev,
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"ASoC: error at %s on %s: %d\n",
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func, component->name, ret);
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}
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return ret;
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}
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void snd_soc_component_set_aux(struct snd_soc_component *component,
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struct snd_soc_aux_dev *aux)
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{
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component->init = (aux) ? aux->init : NULL;
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}
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int snd_soc_component_init(struct snd_soc_component *component)
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{
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int ret = 0;
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if (component->init)
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ret = component->init(component);
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return soc_component_ret(component, ret);
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}
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/**
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* snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
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* @component: COMPONENT
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* @clk_id: DAI specific clock ID
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* @source: Source for the clock
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* @freq: new clock frequency in Hz
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* @dir: new clock direction - input/output.
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*
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* Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
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*/
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int snd_soc_component_set_sysclk(struct snd_soc_component *component,
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int clk_id, int source, unsigned int freq,
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int dir)
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{
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int ret = -ENOTSUPP;
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if (component->driver->set_sysclk)
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ret = component->driver->set_sysclk(component, clk_id, source,
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freq, dir);
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return soc_component_ret(component, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
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/*
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* snd_soc_component_set_pll - configure component PLL.
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* @component: COMPONENT
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* @pll_id: DAI specific PLL ID
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* @source: DAI specific source for the PLL
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* @freq_in: PLL input clock frequency in Hz
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* @freq_out: requested PLL output clock frequency in Hz
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*
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* Configures and enables PLL to generate output clock based on input clock.
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*/
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int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
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int source, unsigned int freq_in,
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unsigned int freq_out)
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{
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int ret = -EINVAL;
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if (component->driver->set_pll)
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ret = component->driver->set_pll(component, pll_id, source,
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freq_in, freq_out);
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return soc_component_ret(component, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
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void snd_soc_component_seq_notifier(struct snd_soc_component *component,
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enum snd_soc_dapm_type type, int subseq)
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{
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if (component->driver->seq_notifier)
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component->driver->seq_notifier(component, type, subseq);
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}
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int snd_soc_component_stream_event(struct snd_soc_component *component,
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int event)
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{
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int ret = 0;
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if (component->driver->stream_event)
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ret = component->driver->stream_event(component, event);
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return soc_component_ret(component, ret);
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}
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int snd_soc_component_set_bias_level(struct snd_soc_component *component,
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enum snd_soc_bias_level level)
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{
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int ret = 0;
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if (component->driver->set_bias_level)
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ret = component->driver->set_bias_level(component, level);
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return soc_component_ret(component, ret);
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}
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static int soc_component_pin(struct snd_soc_component *component,
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const char *pin,
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int (*pin_func)(struct snd_soc_dapm_context *dapm,
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const char *pin))
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix) {
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ret = pin_func(dapm, pin);
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goto end;
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}
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name) {
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ret = -ENOMEM;
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goto end;
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}
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ret = pin_func(dapm, full_name);
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kfree(full_name);
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end:
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return soc_component_ret(component, ret);
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}
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int snd_soc_component_enable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_enable_pin);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
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int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_enable_pin_unlocked);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
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int snd_soc_component_disable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_disable_pin);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
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int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_disable_pin_unlocked);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
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int snd_soc_component_nc_pin(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_nc_pin);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
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int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_nc_pin_unlocked);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
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int snd_soc_component_get_pin_status(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_get_pin_status);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
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int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
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int snd_soc_component_force_enable_pin_unlocked(
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struct snd_soc_component *component,
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const char *pin)
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{
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return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin_unlocked);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
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/**
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* snd_soc_component_set_jack - configure component jack.
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* @component: COMPONENTs
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* @jack: structure to use for the jack
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* @data: can be used if codec driver need extra data for configuring jack
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*
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* Configures and enables jack detection function.
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*/
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int snd_soc_component_set_jack(struct snd_soc_component *component,
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struct snd_soc_jack *jack, void *data)
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{
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int ret = -ENOTSUPP;
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if (component->driver->set_jack)
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ret = component->driver->set_jack(component, jack, data);
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return soc_component_ret(component, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
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int snd_soc_component_module_get(struct snd_soc_component *component,
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int upon_open)
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{
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int ret = 0;
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if (component->driver->module_get_upon_open == !!upon_open &&
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!try_module_get(component->dev->driver->owner))
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ret = -ENODEV;
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return soc_component_ret(component, ret);
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}
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void snd_soc_component_module_put(struct snd_soc_component *component,
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int upon_open)
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{
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if (component->driver->module_get_upon_open == !!upon_open)
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module_put(component->dev->driver->owner);
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}
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int snd_soc_component_open(struct snd_soc_component *component,
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struct snd_pcm_substream *substream)
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{
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int ret = 0;
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if (component->driver->open)
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ret = component->driver->open(component, substream);
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return soc_component_ret(component, ret);
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}
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int snd_soc_component_close(struct snd_soc_component *component,
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struct snd_pcm_substream *substream)
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{
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int ret = 0;
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if (component->driver->close)
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ret = component->driver->close(component, substream);
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return soc_component_ret(component, ret);
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}
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void snd_soc_component_suspend(struct snd_soc_component *component)
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{
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if (component->driver->suspend)
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component->driver->suspend(component);
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component->suspended = 1;
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}
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void snd_soc_component_resume(struct snd_soc_component *component)
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{
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if (component->driver->resume)
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component->driver->resume(component);
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component->suspended = 0;
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}
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int snd_soc_component_is_suspended(struct snd_soc_component *component)
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{
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return component->suspended;
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}
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int snd_soc_component_probe(struct snd_soc_component *component)
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{
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int ret = 0;
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if (component->driver->probe)
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ret = component->driver->probe(component);
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return soc_component_ret(component, ret);
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}
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void snd_soc_component_remove(struct snd_soc_component *component)
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{
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if (component->driver->remove)
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component->driver->remove(component);
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}
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int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
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struct device_node *ep)
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{
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int ret = -ENOTSUPP;
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if (component->driver->of_xlate_dai_id)
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ret = component->driver->of_xlate_dai_id(component, ep);
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return soc_component_ret(component, ret);
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}
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int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
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struct of_phandle_args *args,
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const char **dai_name)
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{
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if (component->driver->of_xlate_dai_name)
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return component->driver->of_xlate_dai_name(component,
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args, dai_name);
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/*
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* Don't use soc_component_ret here because we may not want to report
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* the error just yet. If a device has more than one component, the
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* first may not match and we don't want spam the log with this.
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*/
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return -ENOTSUPP;
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}
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void snd_soc_component_setup_regmap(struct snd_soc_component *component)
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{
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int val_bytes = regmap_get_val_bytes(component->regmap);
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/* Errors are legitimate for non-integer byte multiples */
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if (val_bytes > 0)
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component->val_bytes = val_bytes;
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}
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#ifdef CONFIG_REGMAP
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/**
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* snd_soc_component_init_regmap() - Initialize regmap instance for the
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* component
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* @component: The component for which to initialize the regmap instance
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* @regmap: The regmap instance that should be used by the component
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*
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* This function allows deferred assignment of the regmap instance that is
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* associated with the component. Only use this if the regmap instance is not
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* yet ready when the component is registered. The function must also be called
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* before the first IO attempt of the component.
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*/
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void snd_soc_component_init_regmap(struct snd_soc_component *component,
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struct regmap *regmap)
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{
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component->regmap = regmap;
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snd_soc_component_setup_regmap(component);
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
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/**
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* snd_soc_component_exit_regmap() - De-initialize regmap instance for the
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* component
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* @component: The component for which to de-initialize the regmap instance
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*
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* Calls regmap_exit() on the regmap instance associated to the component and
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* removes the regmap instance from the component.
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*
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* This function should only be used if snd_soc_component_init_regmap() was used
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* to initialize the regmap instance.
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*/
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void snd_soc_component_exit_regmap(struct snd_soc_component *component)
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{
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regmap_exit(component->regmap);
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component->regmap = NULL;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
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#endif
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static unsigned int soc_component_read_no_lock(
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struct snd_soc_component *component,
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unsigned int reg)
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{
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int ret;
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unsigned int val = 0;
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if (component->regmap)
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ret = regmap_read(component->regmap, reg, &val);
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else if (component->driver->read) {
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ret = 0;
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val = component->driver->read(component, reg);
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}
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else
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ret = -EIO;
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if (ret < 0)
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return soc_component_ret(component, ret);
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return val;
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}
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/**
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* snd_soc_component_read() - Read register value
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* @component: Component to read from
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* @reg: Register to read
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*
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* Return: read value
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*/
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unsigned int snd_soc_component_read(struct snd_soc_component *component,
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unsigned int reg)
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{
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unsigned int val;
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mutex_lock(&component->io_mutex);
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val = soc_component_read_no_lock(component, reg);
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mutex_unlock(&component->io_mutex);
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return val;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_read);
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static int soc_component_write_no_lock(
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struct snd_soc_component *component,
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unsigned int reg, unsigned int val)
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{
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int ret = -EIO;
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if (component->regmap)
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ret = regmap_write(component->regmap, reg, val);
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else if (component->driver->write)
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ret = component->driver->write(component, reg, val);
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return soc_component_ret(component, ret);
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}
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/**
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* snd_soc_component_write() - Write register value
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* @component: Component to write to
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* @reg: Register to write
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* @val: Value to write to the register
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*
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* Return: 0 on success, a negative error code otherwise.
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*/
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int snd_soc_component_write(struct snd_soc_component *component,
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unsigned int reg, unsigned int val)
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{
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int ret;
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mutex_lock(&component->io_mutex);
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ret = soc_component_write_no_lock(component, reg, val);
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mutex_unlock(&component->io_mutex);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_write);
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static int snd_soc_component_update_bits_legacy(
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struct snd_soc_component *component, unsigned int reg,
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unsigned int mask, unsigned int val, bool *change)
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{
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unsigned int old, new;
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int ret = 0;
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mutex_lock(&component->io_mutex);
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old = soc_component_read_no_lock(component, reg);
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new = (old & ~mask) | (val & mask);
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*change = old != new;
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if (*change)
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ret = soc_component_write_no_lock(component, reg, new);
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mutex_unlock(&component->io_mutex);
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return soc_component_ret(component, ret);
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}
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/**
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* snd_soc_component_update_bits() - Perform read/modify/write cycle
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* @component: Component to update
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* @reg: Register to update
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* @mask: Mask that specifies which bits to update
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* @val: New value for the bits specified by mask
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*
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* Return: 1 if the operation was successful and the value of the register
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* changed, 0 if the operation was successful, but the value did not change.
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* Returns a negative error code otherwise.
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*/
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int snd_soc_component_update_bits(struct snd_soc_component *component,
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unsigned int reg, unsigned int mask, unsigned int val)
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{
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bool change;
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int ret;
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if (component->regmap)
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ret = regmap_update_bits_check(component->regmap, reg, mask,
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val, &change);
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else
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ret = snd_soc_component_update_bits_legacy(component, reg,
|
|
mask, val, &change);
|
|
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
return change;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
|
|
|
|
/**
|
|
* snd_soc_component_update_bits_async() - Perform asynchronous
|
|
* read/modify/write cycle
|
|
* @component: Component to update
|
|
* @reg: Register to update
|
|
* @mask: Mask that specifies which bits to update
|
|
* @val: New value for the bits specified by mask
|
|
*
|
|
* This function is similar to snd_soc_component_update_bits(), but the update
|
|
* operation is scheduled asynchronously. This means it may not be completed
|
|
* when the function returns. To make sure that all scheduled updates have been
|
|
* completed snd_soc_component_async_complete() must be called.
|
|
*
|
|
* Return: 1 if the operation was successful and the value of the register
|
|
* changed, 0 if the operation was successful, but the value did not change.
|
|
* Returns a negative error code otherwise.
|
|
*/
|
|
int snd_soc_component_update_bits_async(struct snd_soc_component *component,
|
|
unsigned int reg, unsigned int mask, unsigned int val)
|
|
{
|
|
bool change;
|
|
int ret;
|
|
|
|
if (component->regmap)
|
|
ret = regmap_update_bits_check_async(component->regmap, reg,
|
|
mask, val, &change);
|
|
else
|
|
ret = snd_soc_component_update_bits_legacy(component, reg,
|
|
mask, val, &change);
|
|
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
return change;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
|
|
|
|
/**
|
|
* snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
|
|
* @component: Component for which to wait
|
|
*
|
|
* This function blocks until all asynchronous I/O which has previously been
|
|
* scheduled using snd_soc_component_update_bits_async() has completed.
|
|
*/
|
|
void snd_soc_component_async_complete(struct snd_soc_component *component)
|
|
{
|
|
if (component->regmap)
|
|
regmap_async_complete(component->regmap);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
|
|
|
|
/**
|
|
* snd_soc_component_test_bits - Test register for change
|
|
* @component: component
|
|
* @reg: Register to test
|
|
* @mask: Mask that specifies which bits to test
|
|
* @value: Value to test against
|
|
*
|
|
* Tests a register with a new value and checks if the new value is
|
|
* different from the old value.
|
|
*
|
|
* Return: 1 for change, otherwise 0.
|
|
*/
|
|
int snd_soc_component_test_bits(struct snd_soc_component *component,
|
|
unsigned int reg, unsigned int mask, unsigned int value)
|
|
{
|
|
unsigned int old, new;
|
|
|
|
old = snd_soc_component_read(component, reg);
|
|
new = (old & ~mask) | value;
|
|
return old != new;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
|
|
|
|
int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i;
|
|
|
|
/* FIXME: use 1st pointer */
|
|
for_each_rtd_components(rtd, i, component)
|
|
if (component->driver->pointer)
|
|
return component->driver->pointer(component, substream);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i;
|
|
|
|
/* FIXME: use 1st ioctl */
|
|
for_each_rtd_components(rtd, i, component)
|
|
if (component->driver->ioctl)
|
|
return soc_component_ret(
|
|
component,
|
|
component->driver->ioctl(component,
|
|
substream, cmd, arg));
|
|
|
|
return snd_pcm_lib_ioctl(substream, cmd, arg);
|
|
}
|
|
|
|
int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i, ret;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->sync_stop) {
|
|
ret = component->driver->sync_stop(component,
|
|
substream);
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
|
|
int channel, unsigned long pos,
|
|
void __user *buf, unsigned long bytes)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i;
|
|
|
|
/* FIXME. it returns 1st copy now */
|
|
for_each_rtd_components(rtd, i, component)
|
|
if (component->driver->copy_user)
|
|
return soc_component_ret(
|
|
component,
|
|
component->driver->copy_user(
|
|
component, substream, channel,
|
|
pos, buf, bytes));
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
|
|
unsigned long offset)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
struct page *page;
|
|
int i;
|
|
|
|
/* FIXME. it returns 1st page now */
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->page) {
|
|
page = component->driver->page(component,
|
|
substream, offset);
|
|
if (page)
|
|
return page;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
|
|
struct vm_area_struct *vma)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i;
|
|
|
|
/* FIXME. it returns 1st mmap now */
|
|
for_each_rtd_components(rtd, i, component)
|
|
if (component->driver->mmap)
|
|
return soc_component_ret(
|
|
component,
|
|
component->driver->mmap(component,
|
|
substream, vma));
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_component *component;
|
|
int ret;
|
|
int i;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->pcm_construct) {
|
|
ret = component->driver->pcm_construct(component, rtd);
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_component *component;
|
|
int i;
|
|
|
|
if (!rtd->pcm)
|
|
return;
|
|
|
|
for_each_rtd_components(rtd, i, component)
|
|
if (component->driver->pcm_destruct)
|
|
component->driver->pcm_destruct(component, rtd->pcm);
|
|
}
|
|
|
|
int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i, ret;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->prepare) {
|
|
ret = component->driver->prepare(component, substream);
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params,
|
|
struct snd_soc_component **last)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i, ret;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->hw_params) {
|
|
ret = component->driver->hw_params(component,
|
|
substream, params);
|
|
if (ret < 0) {
|
|
*last = component;
|
|
return soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
*last = NULL;
|
|
return 0;
|
|
}
|
|
|
|
void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
|
|
struct snd_soc_component *last)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i, ret;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component == last)
|
|
break;
|
|
|
|
if (component->driver->hw_free) {
|
|
ret = component->driver->hw_free(component, substream);
|
|
if (ret < 0)
|
|
soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
}
|
|
|
|
int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_component *component;
|
|
int i, ret;
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (component->driver->trigger) {
|
|
ret = component->driver->trigger(component, substream, cmd);
|
|
if (ret < 0)
|
|
return soc_component_ret(component, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|