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Commit a3462490 authored by Mark Brown's avatar Mark Brown
Browse files

mfd: Test for jack detection when deciding if wm8994 should suspend 



The jack detection on WM1811 is often required during system suspend, add
it as another check when deciding if we should suspend.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent d0616bbe

drivers/mfd/wm8994-core.c

+14 −0
Original line number Diff line number Diff line
@@ -241,6 +241,20 @@ 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)