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ASoC: Bolero: Vote for LPASS HW core during register access

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Vote for LPASS HW core in soundwire clock request before
soundwire register access to avoid LPASS going to sleep.

Change-Id: I1e54ece19130cf6bd63fbf75a8a0716856c3b73e
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
This commit is contained in:
Sudheer Papothi
2019-03-30 03:00:52 +05:30
zatwierdzone przez Gerrit - the friendly Code Review server
rodzic a7397947d3
commit 7601cc6db6
3 zmienionych plików z 67 dodań i 2 usunięć
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21
asoc/codecs/bolero/wsa-macro.c
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@@ -7,6 +7,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
@@ -19,6 +20,7 @@
#include "wsa-macro.h"
#include "bolero-clk-rsc.h"
#define AUTO_SUSPEND_DELAY 50 /* delay in msec */
#define WSA_MACRO_MAX_OFFSET 0x1000
#define WSA_MACRO_RX_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
@@ -2548,6 +2550,7 @@ 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) {
pm_runtime_get_sync(wsa_priv->dev);
if (wsa_priv->swr_clk_users == 0) {
msm_cdc_pinctrl_select_active_state(
wsa_priv->wsa_swr_gpio_p);
@@ -2573,6 +2576,8 @@ static int wsa_swrm_clock(void *handle, bool enable)
0x02, 0x00);
wsa_priv->reset_swr = false;
}
pm_runtime_mark_last_busy(wsa_priv->dev);
pm_runtime_put_autosuspend(wsa_priv->dev);
wsa_priv->swr_clk_users++;
} else {
if (wsa_priv->swr_clk_users <= 0) {
@@ -2871,6 +2876,11 @@ static int wsa_macro_probe(struct platform_device *pdev)
goto reg_macro_fail;
}
schedule_work(&wsa_priv->wsa_macro_add_child_devices_work);
pm_runtime_set_autosuspend_delay(&pdev->dev, AUTO_SUSPEND_DELAY);
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
pm_runtime_enable(&pdev->dev);
return ret;
reg_macro_fail:
mutex_destroy(&wsa_priv->mclk_lock);
@@ -2892,6 +2902,8 @@ static int wsa_macro_remove(struct platform_device *pdev)
count < WSA_MACRO_CHILD_DEVICES_MAX; count++)
platform_device_unregister(wsa_priv->pdev_child_devices[count]);
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
bolero_unregister_macro(&pdev->dev, WSA_MACRO);
mutex_destroy(&wsa_priv->mclk_lock);
mutex_destroy(&wsa_priv->swr_clk_lock);
@@ -2903,10 +2915,19 @@ static const struct of_device_id wsa_macro_dt_match[] = {
{}
};
static const struct dev_pm_ops bolero_dev_pm_ops = {
SET_RUNTIME_PM_OPS(
bolero_runtime_suspend,
bolero_runtime_resume,
NULL
)
};
static struct platform_driver wsa_macro_driver = {
.driver = {
.name = "wsa_macro",
.owner = THIS_MODULE,
.pm = &bolero_dev_pm_ops,
.of_match_table = wsa_macro_dt_match,
},
.probe = wsa_macro_probe,