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ASoC: wcd937x: Reduce latency in case of impedance detection

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Bulk read api does not work properly for swr regmap,
causing failure/delay in impedance detection.
Use regmap read api to avoid the issue.

CRs-Fixed: 2301798
Change-Id: I5727cfcb7846f40f5b0f75b7976b492e2a2bfde0
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
This commit is contained in:
Vatsal Bucha
2018-09-14 19:49:31 +05:30
parent 186f847814
commit 34b5181903
1 changed files with 6 additions and 4 deletions
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10
asoc/codecs/wcd937x/wcd937x-mbhc.c
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@@ -413,8 +413,10 @@ static inline void wcd937x_mbhc_get_result_params(struct wcd937x_priv *wcd937x,
ramp_down: ramp_down:
i = 0; i = 0;
while (x1) { while (x1) {
regmap_bulk_read(wcd937x->regmap, regmap_read(wcd937x->regmap, WCD937X_ANA_MBHC_RESULT_1, &val);
WCD937X_ANA_MBHC_RESULT_1, (u8 *)&val, 2); regmap_read(wcd937x->regmap, WCD937X_ANA_MBHC_RESULT_2, &val1);
val = val << 0x8;
val |= val1;
x1 = WCD937X_MBHC_GET_X1(val); x1 = WCD937X_MBHC_GET_X1(val);
i++; i++;
if (i == WCD937X_ZDET_NUM_MEASUREMENTS) if (i == WCD937X_ZDET_NUM_MEASUREMENTS)
@@ -972,7 +974,7 @@ int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
wcd_mbhc_deinit(wcd_mbhc); wcd_mbhc_deinit(wcd_mbhc);
ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, &intr_ids, ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, &intr_ids,
wcd_mbhc_registers, false); wcd_mbhc_registers, WCD937X_ZDET_SUPPORTED);
if (ret) { if (ret) {
dev_err(codec->dev, "%s: mbhc initialization failed\n", dev_err(codec->dev, "%s: mbhc initialization failed\n",
__func__); __func__);
@@ -1024,7 +1026,7 @@ int wcd937x_mbhc_init(struct wcd937x_mbhc **mbhc, struct snd_soc_codec *codec,
ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb, ret = wcd_mbhc_init(wcd_mbhc, codec, &mbhc_cb,
&intr_ids, wcd_mbhc_registers, &intr_ids, wcd_mbhc_registers,
false); WCD937X_ZDET_SUPPORTED);
if (ret) { if (ret) {
dev_err(codec->dev, "%s: mbhc initialization failed\n", dev_err(codec->dev, "%s: mbhc initialization failed\n",
__func__); __func__);