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asoc: codecs: delay codec irq handler during ssr

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Put the irq handler of codec device to sleep if device is
not up, to allow other threads to execute meanwhile the device
will be up.

Change-Id: Ic7421bdf236be52070b6d5fcd774b0641368bf2b
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>
This commit is contained in:
Karthikeyan Mani
2018-07-25 12:41:03 -07:00
committed by Gerrit - the friendly Code Review server
parent 1fdb5b3e3f
commit 9bc7b45fc9
1 changed files with 18 additions and 0 deletions
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18
asoc/codecs/wcd9xxx-irq.c
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@@ -295,6 +295,7 @@ static irqreturn_t wcd9xxx_irq_thread(int irq, void *data)
static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 1);
struct wcd9xxx_core_resource *wcd9xxx_res = data;
int num_irq_regs = wcd9xxx_res->num_irq_regs;
struct wcd9xxx *wcd9xxx;
u8 status[4], status1[4] = {0}, unmask_status[4] = {0};
if (unlikely(wcd9xxx_lock_sleep(wcd9xxx_res) == false)) {
@@ -309,6 +310,23 @@ static irqreturn_t wcd9xxx_irq_thread(int irq, void *data)
goto err_disable_irq;
}
wcd9xxx = (struct wcd9xxx *)wcd9xxx_res->parent;
if (!wcd9xxx) {
dev_err(wcd9xxx_res->dev,
"%s: Codec core not supplied\n", __func__);
goto err_disable_irq;
}
if (!wcd9xxx->dev_up) {
dev_info_ratelimited(wcd9xxx_res->dev, "wcd9xxx dev not up\n");
/*
* sleep to not block the core when device is
* not up (slimbus will not be available) to
* process interrupts.
*/
msleep(10);
}
memset(status, 0, sizeof(status));
ret = regmap_bulk_read(wcd9xxx_res->wcd_core_regmap,
wcd9xxx_res->intr_reg[WCD9XXX_INTR_STATUS_BASE],