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ASoC: wcd9335: Update SIDO buck register sequence for WCD9335 v2.0

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Set current(IRef) and voltage(VRef) references to external and use
supply from RCO (RC Oscillator) bandgap.

Change-Id: I9c0d608011e20670aafaa343d7c11c17129b5704
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
This commit is contained in:
Sudheer Papothi 2015-09-03 15:54:58 +05:30 committed by Gerrit - the friendly Code Review server
parent 4fd6901dc6
commit ac9cbc4bfa
3 changed files with 38 additions and 6 deletions
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19
sound/soc/codecs/wcd9335.c
View file

@ -660,6 +660,20 @@ struct tasha_priv {
static enum codec_variant codec_ver;
static void tasha_enable_sido_buck(struct snd_soc_codec *codec)
{
struct tasha_priv *tasha = snd_soc_codec_get_drvdata(codec);
snd_soc_update_bits(codec, WCD9335_ANA_RCO, 0x80, 0x80);
snd_soc_update_bits(codec, WCD9335_ANA_BUCK_CTL, 0x02, 0x02);
/* 100us sleep needed after IREF settings */
usleep_range(100, 110);
snd_soc_update_bits(codec, WCD9335_ANA_BUCK_CTL, 0x04, 0x04);
/* 100us sleep needed after VREF settings */
usleep_range(100, 110);
tasha->resmgr->sido_input_src = SIDO_SOURCE_RCO_BG;
}
int tasha_enable_efuse_sensing(struct snd_soc_codec *codec)
{
struct tasha_priv *priv = snd_soc_codec_get_drvdata(codec);
@ -679,6 +693,9 @@ int tasha_enable_efuse_sensing(struct snd_soc_codec *codec)
if (!(snd_soc_read(codec, WCD9335_CHIP_TIER_CTRL_EFUSE_STATUS) & 0x01))
WARN(1, "%s: Efuse sense is not complete\n", __func__);
if (TASHA_IS_2_0(priv->wcd9xxx->version))
tasha_enable_sido_buck(codec);
tasha_cdc_mclk_enable(codec, false, false);
return 0;
@ -9871,6 +9888,8 @@ static int tasha_codec_probe(struct snd_soc_codec *codec)
0x03, 0x01);
tasha_codec_init_reg(codec);
tasha_enable_efuse_sensing(codec);
pdata = dev_get_platdata(codec->dev->parent);
ret = tasha_handle_pdata(tasha, pdata);
if (IS_ERR_VALUE(ret)) {

19
sound/soc/codecs/wcd9xxx-resmgr-v2.c
View file

@ -264,8 +264,10 @@ static int wcd_resmgr_enable_clk_rco(struct wcd9xxx_resmgr_v2 *resmgr)
} else if ((resmgr->clk_rco_users == 1) &&
(resmgr->clk_mclk_users)) {
/* RCO Enable */
wcd_resmgr_codec_reg_update_bits(resmgr, WCD9335_ANA_RCO,
0x80, 0x80);
if (resmgr->sido_input_src == SIDO_SOURCE_INTERNAL)
wcd_resmgr_codec_reg_update_bits(resmgr,
WCD9335_ANA_RCO,
0x80, 0x80);
/*
* 20us required after RCO BG is enabled as per HW
* requirements
@ -318,16 +320,20 @@ static int wcd_resmgr_disable_clk_rco(struct wcd9xxx_resmgr_v2 *resmgr)
0x04, 0x00);
wcd_resmgr_codec_reg_update_bits(resmgr, WCD9335_ANA_RCO,
0x40, 0x00);
wcd_resmgr_codec_reg_update_bits(resmgr, WCD9335_ANA_RCO,
0x80, 0x00);
if (resmgr->sido_input_src == SIDO_SOURCE_INTERNAL)
wcd_resmgr_codec_reg_update_bits(resmgr,
WCD9335_ANA_RCO,
0x80, 0x00);
resmgr->clk_type = WCD_CLK_OFF;
} else if ((resmgr->clk_rco_users == 0) &&
(resmgr->clk_mclk_users)) {
/* Disable RCO while MCLK is ON */
wcd_resmgr_codec_reg_update_bits(resmgr, WCD9335_ANA_RCO,
0x40, 0x00);
wcd_resmgr_codec_reg_update_bits(resmgr, WCD9335_ANA_RCO,
0x80, 0x00);
if (resmgr->sido_input_src == SIDO_SOURCE_INTERNAL)
wcd_resmgr_codec_reg_update_bits(resmgr,
WCD9335_ANA_RCO,
0x80, 0x00);
}
pr_debug("%s: rco clk users: %d, clk_type: %s\n", __func__,
resmgr->clk_rco_users,
@ -424,6 +430,7 @@ struct wcd9xxx_resmgr_v2 *wcd_resmgr_init(
resmgr->master_bias_users = 0;
resmgr->codec = codec;
resmgr->core_res = core_res;
resmgr->sido_input_src = SIDO_SOURCE_INTERNAL;
return resmgr;
}

6
sound/soc/codecs/wcd9xxx-resmgr-v2.h
View file

@ -22,6 +22,11 @@ enum wcd_clock_type {
WCD_CLK_MCLK,
};
enum {
SIDO_SOURCE_INTERNAL,
SIDO_SOURCE_RCO_BG,
};
struct wcd_resmgr_cb {
int (*cdc_rco_ctrl)(struct snd_soc_codec *, bool);
};
@ -40,6 +45,7 @@ struct wcd9xxx_resmgr_v2 {
enum wcd_clock_type clk_type;
const struct wcd_resmgr_cb *resmgr_cb;
int sido_input_src;
};
#define WCD9XXX_V2_BG_CLK_LOCK(resmgr) \