From ad60d502fb8aaa3c1e011f4d72b8228f553d87a8 Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Fri, 28 Jun 2013 12:03:01 +0200 Subject: [PATCH] ALSA: hda - Add support for ALC5505 DSP power-save mode This patch adds the power-saving control for ALC5505 DSP on some Realtek codecs. Signed-off-by: Kailang Yang Tested-by: Mengdong Lin Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 98 +++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index ae121113f223..eeb6ecc31366 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -115,6 +115,7 @@ struct alc_spec { int init_amp; int codec_variant; /* flag for other variants */ + bool has_alc5505_dsp; /* for PLL fix */ hda_nid_t pll_nid; @@ -2580,7 +2581,96 @@ static void alc269_shutup(struct hda_codec *codec) } } +static void alc5505_coef_set(struct hda_codec *codec, unsigned int index_reg, + unsigned int val) +{ + snd_hda_codec_write(codec, 0x51, 0, AC_VERB_SET_COEF_INDEX, index_reg >> 1); + snd_hda_codec_write(codec, 0x51, 0, AC_VERB_SET_PROC_COEF, val & 0xffff); /* LSB */ + snd_hda_codec_write(codec, 0x51, 0, AC_VERB_SET_PROC_COEF, val >> 16); /* MSB */ +} + +static int alc5505_coef_get(struct hda_codec *codec, unsigned int index_reg) +{ + unsigned int val; + + snd_hda_codec_write(codec, 0x51, 0, AC_VERB_SET_COEF_INDEX, index_reg >> 1); + val = snd_hda_codec_read(codec, 0x51, 0, AC_VERB_GET_PROC_COEF, 0) + & 0xffff; + val |= snd_hda_codec_read(codec, 0x51, 0, AC_VERB_GET_PROC_COEF, 0) + << 16; + return val; +} + +static void alc5505_dsp_halt(struct hda_codec *codec) +{ + unsigned int val; + + alc5505_coef_set(codec, 0x3000, 0x000c); /* DSP CPU stop */ + alc5505_coef_set(codec, 0x880c, 0x0008); /* DDR enter self refresh */ + alc5505_coef_set(codec, 0x61c0, 0x11110080); /* Clock control for PLL and CPU */ + alc5505_coef_set(codec, 0x6230, 0xfc0d4011); /* Disable Input OP */ + alc5505_coef_set(codec, 0x61b4, 0x040a2b03); /* Stop PLL2 */ + alc5505_coef_set(codec, 0x61b0, 0x00005b17); /* Stop PLL1 */ + alc5505_coef_set(codec, 0x61b8, 0x04133303); /* Stop PLL3 */ + val = alc5505_coef_get(codec, 0x6220); + alc5505_coef_set(codec, 0x6220, (val | 0x3000)); /* switch Ringbuffer clock to DBUS clock */ +} + +static void alc5505_dsp_back_from_halt(struct hda_codec *codec) +{ + alc5505_coef_set(codec, 0x61b8, 0x04133302); + alc5505_coef_set(codec, 0x61b0, 0x00005b16); + alc5505_coef_set(codec, 0x61b4, 0x040a2b02); + alc5505_coef_set(codec, 0x6230, 0xf80d4011); + alc5505_coef_set(codec, 0x6220, 0x2002010f); + alc5505_coef_set(codec, 0x880c, 0x00000004); +} + +static void alc5505_dsp_init(struct hda_codec *codec) +{ + unsigned int val; + + alc5505_dsp_halt(codec); + alc5505_dsp_back_from_halt(codec); + alc5505_coef_set(codec, 0x61b0, 0x5b14); /* PLL1 control */ + alc5505_coef_set(codec, 0x61b0, 0x5b16); + alc5505_coef_set(codec, 0x61b4, 0x04132b00); /* PLL2 control */ + alc5505_coef_set(codec, 0x61b4, 0x04132b02); + alc5505_coef_set(codec, 0x61b8, 0x041f3300); /* PLL3 control*/ + alc5505_coef_set(codec, 0x61b8, 0x041f3302); + snd_hda_codec_write(codec, 0x51, 0, AC_VERB_SET_CODEC_RESET, 0); /* Function reset */ + alc5505_coef_set(codec, 0x61b8, 0x041b3302); + alc5505_coef_set(codec, 0x61b8, 0x04173302); + alc5505_coef_set(codec, 0x61b8, 0x04163302); + alc5505_coef_set(codec, 0x8800, 0x348b328b); /* DRAM control */ + alc5505_coef_set(codec, 0x8808, 0x00020022); /* DRAM control */ + alc5505_coef_set(codec, 0x8818, 0x00000400); /* DRAM control */ + + val = alc5505_coef_get(codec, 0x6200) >> 16; /* Read revision ID */ + if (val <= 3) + alc5505_coef_set(codec, 0x6220, 0x2002010f); /* I/O PAD Configuration */ + else + alc5505_coef_set(codec, 0x6220, 0x6002018f); + + alc5505_coef_set(codec, 0x61ac, 0x055525f0); /**/ + alc5505_coef_set(codec, 0x61c0, 0x12230080); /* Clock control */ + alc5505_coef_set(codec, 0x61b4, 0x040e2b02); /* PLL2 control */ + alc5505_coef_set(codec, 0x61bc, 0x010234f8); /* OSC Control */ + alc5505_coef_set(codec, 0x880c, 0x00000004); /* DRAM Function control */ + alc5505_coef_set(codec, 0x880c, 0x00000003); + alc5505_coef_set(codec, 0x880c, 0x00000010); +} + #ifdef CONFIG_PM +static int alc269_suspend(struct hda_codec *codec) +{ + struct alc_spec *spec = codec->spec; + + if (spec->has_alc5505_dsp) + alc5505_dsp_halt(codec); + return alc_suspend(codec); +} + static int alc269_resume(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; @@ -2605,6 +2695,8 @@ static int alc269_resume(struct hda_codec *codec) snd_hda_codec_resume_cache(codec); alc_inv_dmic_sync(codec, true); hda_call_check_power_status(codec, 0x01); + if (spec->has_alc5505_dsp) + alc5505_dsp_back_from_halt(codec); return 0; } #endif /* CONFIG_PM */ @@ -3730,6 +3822,11 @@ static int patch_alc269(struct hda_codec *codec) break; } + if (snd_hda_codec_read(codec, 0x51, 0, AC_VERB_PARAMETERS, 0) == 0x10ec5505) { + spec->has_alc5505_dsp = true; + spec->init_hook = alc5505_dsp_init; + } + /* automatic parse from the BIOS config */ err = alc269_parse_auto_config(codec); if (err < 0) @@ -3740,6 +3837,7 @@ static int patch_alc269(struct hda_codec *codec) codec->patch_ops = alc_patch_ops; #ifdef CONFIG_PM + codec->patch_ops.suspend = alc269_suspend; codec->patch_ops.resume = alc269_resume; #endif spec->shutup = alc269_shutup; -- 2.45.2