diff --git a/asoc/codecs/wcd9xxx-irq.c b/asoc/codecs/wcd9xxx-irq.c index b192e992d1..ad15470a39 100644 --- a/asoc/codecs/wcd9xxx-irq.c +++ b/asoc/codecs/wcd9xxx-irq.c @@ -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],