Commit 43541bfa authored Jul 31, 2018 by H. Nikolaus Schaller Committed by Tony Lindgren Sep 07, 2018

ARM: dts: omap3-gta04a5: disable IrDA receiver to save power



The GTA04A5 has an improved IrDA circuit that can enable/disable
the receiver individually. We do not have an IrDA driver/subsystem
and hence the receiver should be actively turned off to save power,
especially in suspend.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent 4440f94d

arch/arm/boot/dts/omap3-gta04a5.dts

+14 −0

Original line number	Diff line number	Diff line
		@@ -25,7 +25,21 @@

		};

		&gpio5 {
		irda_en {
		gpio-hog;
		gpios = <(175-160) GPIO_ACTIVE_HIGH>;
		output-high; /* activate gpio_175 to disable IrDA receiver */
		};
		};

		&omap3_pmx_core {
		irda_pins: pinmux_irda {
		pinctrl-single,pins = <
		OMAP3_CORE1_IOPAD(0x21d0, PIN_OUTPUT_PULLUP \| MUX_MODE4) /* mcspi1_cs1 = gpio175 */
		>;
		};

		pps_pins: pinmux_pps_pins {
		pinctrl-single,pins = <
		OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT \| MUX_MODE4) /* gpin114 */