ALSA: hda - Always allow access for POWER_STATE verbs via regmap
The hdac regmap code checks whether the codec is powered on while accessing, but there must be an exception -- the verbs to control the power state. Currently HD-audio driver doesn't access them via regmap, so this patch doesn't fix any current behavior, but it's just for future. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -239,7 +239,7 @@ static int hda_reg_read(void *context, unsigned int reg, unsigned int *val)
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int verb = get_verb(reg);
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int err;
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if (!codec_is_running(codec))
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if (!codec_is_running(codec) && verb != AC_VERB_GET_POWER_STATE)
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return -EAGAIN;
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reg |= (codec->addr << 28);
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if (is_stereo_amp_verb(reg))
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@ -265,16 +265,16 @@ static int hda_reg_write(void *context, unsigned int reg, unsigned int val)
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unsigned int verb;
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int i, bytes, err;
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if (!codec_is_running(codec))
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return codec->lazy_cache ? 0 : -EAGAIN;
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reg &= ~0x00080000U; /* drop GET bit */
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reg |= (codec->addr << 28);
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verb = get_verb(reg);
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if (!codec_is_running(codec) && verb != AC_VERB_SET_POWER_STATE)
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return codec->lazy_cache ? 0 : -EAGAIN;
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if (is_stereo_amp_verb(reg))
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return hda_reg_write_stereo_amp(codec, reg, val);
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verb = get_verb(reg);
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if (verb == AC_VERB_SET_PROC_COEF)
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return hda_reg_write_coef(codec, reg, val);
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