mfd: Support configuration of WM831x /IRQ output in CMOS mode (b103e0b3) · Commits · 戴 / test

Provide platform data allowing the system to set the /IRQ pin into CMOS mode rather than the default open drain. The default value of this platform data reflects the default hardware configuration so there should be no change to existing users. Signed-off-by:

Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:

Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/wm831x-irq.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -520,6 +520,14 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
		return 0;
		}

		if (pdata->irq_cmos)
		i = 0;
		else
		i = WM831X_IRQ_OD;

		wm831x_set_bits(wm831x, WM831X_IRQ_CONFIG,
		WM831X_IRQ_OD, i);

		/* Try to flag /IRQ as a wake source; there are a number of
		* unconditional wake sources in the PMIC so this isn't
		* conditional but we don't actually care too much if it

include/linux/mfd/wm831x/pdata.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -109,6 +109,9 @@ struct wm831x_pdata {
		/** Called after subdevices are set up */
		int (post_init)(struct wm831x wm831x);

		/** Put the /IRQ line into CMOS mode */
		bool irq_cmos;

		int irq_base;
		int gpio_base;
		struct wm831x_backlight_pdata *backlight;

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