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asoc: codecs: Correct the clk users increment/decrement logic

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The clk users count goes out of sync with the actual
clk requests from clients during SSR/PDR. Increment the
clk users only after the clk request is successful.

Change-Id: I512f037a118f4763a64e7a64f7f559bcfa37a37f
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>
This commit is contained in:
Aditya Bavanari
2018-11-16 15:50:40 +05:30
committed by Gerrit - the friendly Code Review server
parent 3a0e91bf0c
commit c496ed25a9
2 changed files with 36 additions and 10 deletions
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32
asoc/codecs/bolero/wsa-macro.c
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@@ -766,8 +766,7 @@ static int wsa_macro_mclk_enable(struct wsa_macro_priv *wsa_priv,
mutex_lock(&wsa_priv->mclk_lock);
if (mclk_enable) {
wsa_priv->wsa_mclk_users++;
if (wsa_priv->wsa_mclk_users == 1) {
if (wsa_priv->wsa_mclk_users == 0) {
ret = bolero_request_clock(wsa_priv->dev,
WSA_MACRO, MCLK_MUX0, true);
if (ret < 0) {
@@ -790,7 +789,14 @@ static int wsa_macro_mclk_enable(struct wsa_macro_priv *wsa_priv,
BOLERO_CDC_WSA_CLK_RST_CTRL_FS_CNT_CONTROL,
0x01, 0x01);
}
wsa_priv->wsa_mclk_users++;
} else {
if (wsa_priv->wsa_mclk_users <= 0) {
dev_err(wsa_priv->dev, "%s: clock already disabled\n",
__func__);
wsa_priv->wsa_mclk_users = 0;
goto exit;
}
wsa_priv->wsa_mclk_users--;
if (wsa_priv->wsa_mclk_users == 0) {
regmap_update_bits(regmap,
@@ -2435,6 +2441,7 @@ static int wsa_swrm_clock(void *handle, bool enable)
{
struct wsa_macro_priv *wsa_priv = (struct wsa_macro_priv *) handle;
struct regmap *regmap = dev_get_regmap(wsa_priv->dev->parent, NULL);
int ret = 0;
if (regmap == NULL) {
dev_err(wsa_priv->dev, "%s: regmap is NULL\n", __func__);
@@ -2446,9 +2453,14 @@ static int wsa_swrm_clock(void *handle, bool enable)
dev_dbg(wsa_priv->dev, "%s: swrm clock %s\n",
__func__, (enable ? "enable" : "disable"));
if (enable) {
wsa_priv->swr_clk_users++;
if (wsa_priv->swr_clk_users == 1) {
wsa_macro_mclk_enable(wsa_priv, 1, true);
if (wsa_priv->swr_clk_users == 0) {
ret = wsa_macro_mclk_enable(wsa_priv, 1, true);
if (ret < 0) {
dev_err(wsa_priv->dev,
"%s: wsa request clock enable failed\n",
__func__);
goto exit;
}
regmap_update_bits(regmap,
BOLERO_CDC_WSA_CLK_RST_CTRL_SWR_CONTROL,
0x01, 0x01);
@@ -2458,7 +2470,14 @@ static int wsa_swrm_clock(void *handle, bool enable)
msm_cdc_pinctrl_select_active_state(
wsa_priv->wsa_swr_gpio_p);
}
wsa_priv->swr_clk_users++;
} else {
if (wsa_priv->swr_clk_users <= 0) {
dev_err(wsa_priv->dev, "%s: clock already disabled\n",
__func__);
wsa_priv->swr_clk_users = 0;
goto exit;
}
wsa_priv->swr_clk_users--;
if (wsa_priv->swr_clk_users == 0) {
regmap_update_bits(regmap,
@@ -2471,8 +2490,9 @@ static int wsa_swrm_clock(void *handle, bool enable)
}
dev_dbg(wsa_priv->dev, "%s: swrm clock users %d\n",
__func__, wsa_priv->swr_clk_users);
exit:
mutex_unlock(&wsa_priv->swr_clk_lock);
return 0;
return ret;
}
static int wsa_macro_init(struct snd_soc_codec *codec)