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| author |   Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2022-02-24 11:17:18 +0000 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2022-02-25 13:51:14 +0000 |
| commit | cc4d891f1876242400ef21d95ab9e9553e9d10b0 (patch) | |
| tree | 416003168e5d0e5a76f0f48044451e0543bef07b /sound/soc/codecs/wcd-mbhc-v2.c | |
| parent | ASoC: codecs: wcd938x: add simple clk stop support (diff) | |
| download | wireguard-linux-cc4d891f1876242400ef21d95ab9e9553e9d10b0.tar.xz wireguard-linux-cc4d891f1876242400ef21d95ab9e9553e9d10b0.zip | |
ASoC: codecs: wcd-mbhc: add runtime pm support
under low power state a SoundWire Wake IRQ could trigger MBHC interrupts
so make sure that codec is not in suspended state when this happens.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220224111718.6264-17-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wcd-mbhc-v2.c')
| -rw-r--r-- | sound/soc/codecs/wcd-mbhc-v2.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sound/soc/codecs/wcd-mbhc-v2.c b/sound/soc/codecs/wcd-mbhc-v2.c index 7488a150a138..c53c2ef33e1a 100644 --- a/sound/soc/codecs/wcd-mbhc-v2.c +++ b/sound/soc/codecs/wcd-mbhc-v2.c @@ -5,6 +5,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/device.h> +#include <linux/pm_runtime.h> #include <linux/printk.h> #include <linux/delay.h> #include <linux/kernel.h> @@ -711,6 +712,16 @@ static irqreturn_t wcd_mbhc_hphr_ocp_irq(int irq, void *data) static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc) { struct snd_soc_component *component = mbhc->component; + int ret; + + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return ret; + } mutex_lock(&mbhc->lock); @@ -751,6 +762,9 @@ static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc) mutex_unlock(&mbhc->lock); + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; } @@ -1078,10 +1092,19 @@ static void wcd_correct_swch_plug(struct work_struct *work) int output_mv, cross_conn, hs_threshold, try = 0, micbias_mv; bool is_spl_hs = false; bool is_pa_on; + int ret; mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch); component = mbhc->component; + ret = pm_runtime_get_sync(component->dev); + if (ret < 0 && ret != -EACCES) { + dev_err_ratelimited(component->dev, + "pm_runtime_get_sync failed in %s, ret %d\n", + __func__, ret); + pm_runtime_put_noidle(component->dev); + return; + } micbias_mv = wcd_mbhc_get_micbias(mbhc); hs_threshold = wcd_mbhc_adc_get_hs_thres(mbhc); @@ -1232,6 +1255,9 @@ exit: if (mbhc->mbhc_cb->hph_pull_down_ctrl) mbhc->mbhc_cb->hph_pull_down_ctrl(component, true); + + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); } static irqreturn_t wcd_mbhc_adc_hs_rem_irq(int irq, void *data) |