Merge tag 'regmap-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

[firefly-linux-kernel-4.4.55.git] / drivers / mfd / wm8994-core.c

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 4b8b78c397679eb6106413ecc7b9abe02cd8af33..98733d408feec58f719da3842a7b13387fc42db8 100644 (file)
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -256,6 +256,20 @@ static int wm8994_suspend(struct device *dev)
                break;
        }
 
+       switch (wm8994->type) {
+       case WM1811:
+               ret = wm8994_reg_read(wm8994, WM8994_ANTIPOP_2);
+               if (ret < 0) {
+                       dev_err(dev, "Failed to read jackdet: %d\n", ret);
+               } else if (ret & WM1811_JACKDET_MODE_MASK) {
+                       dev_dbg(dev, "CODEC still active, ignoring suspend\n");
+                       return 0;
+               }
+               break;
+       default:
+               break;
+       }
+
        /* Disable LDO pulldowns while the device is suspended if we
         * don't know that something will be driving them. */
        if (!wm8994->ldo_ena_always_driven)