Commit 74fe9bf4 authored by Dave Gerlach's avatar Dave Gerlach Committed by Tony Lindgren
Browse files

ARM: dts: am437x-gp-evm: Add uart0 pinctrl default and sleep states 



Currently uart0 uses pinctrl config set by bootloader so
create default state that can be restored after a suspend
event.

Also, modify uart0 pinctrl to include RTS and CTS pins as by
default these are not in a mode for optimal power savings.

Signed-off-by: default avatarDave Gerlach <d-gerlach@ti.com>
Signed-off-by: default avatarKeerthy <j-keerthy@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 7235ed18

arch/arm/boot/dts/am437x-gp-evm.dts

+20 −10
Original line number Diff line number Diff line
@@ -517,15 +517,6 @@ 
		>;

	};



	uart0_pins_default: uart0_pins_default {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x968, PIN_INPUT | MUX_MODE0)		/* uart0_ctsn.uart0_ctsn */

			AM4372_IOPAD(0x96C, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_rtsn.uart0_rtsn */

			AM4372_IOPAD(0x970, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */

			AM4372_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */

		>;

	};



	beeper_pins: beeper_pins {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x9e0, PIN_OUTPUT_PULLUP | MUX_MODE7)	/* cam1_field.gpio4_12 */
@@ -592,12 +583,31 @@ 
			AM4372_IOPAD(0xaa8, PIN_INPUT_PULLDOWN)

		>;

	};



	uart0_pins_default: uart0_pins_default {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x968, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0) /* uart0_ctsn.uart0_ctsn */

			AM4372_IOPAD(0x96C, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE0) /* uart0_rtsn.uart0_rtsn */

			AM4372_IOPAD(0x970, PIN_INPUT_PULLUP | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_rxd.uart0_rxd */

			AM4372_IOPAD(0x974, PIN_INPUT | PULL_DISABLE | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */

		>;

	};



	uart0_pins_sleep: uart0_pins_sleep {

		pinctrl-single,pins = <

			AM4372_IOPAD(0x968, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7) /* uart0_ctsn.uart0_ctsn */

			AM4372_IOPAD(0x96C, DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7) /* uart0_rtsn.uart0_rtsn */

			AM4372_IOPAD(0x970, PIN_INPUT_PULLUP | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_rxd.uart0_rxd */

			AM4372_IOPAD(0x974, PIN_INPUT_PULLDOWN | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */

		>;

	};

};



&uart0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&uart0_pins_default>;

	pinctrl-1 = <&uart0_pins_sleep>;

};



&i2c0 {

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