diff options
| author | Dave Gerlach <d-gerlach@ti.com> | 2018-11-07 10:34:19 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-11-19 10:32:37 -0800 |
| commit | 6a156a05bb55de2655505429516bbce040aa89f8 (patch) | |
| tree | c6a959deacab59e86a3a321d745c6b74c948e59d /arch/arm/boot/dts/am437x-gp-evm.dts | |
| parent | 74fe9bf45e71a3122831106a19398dc96443181a (diff) | |
ARM: dts: am437x-gp-evm: Add pinmux for gpio0 wake
Add pinctrl settings so that gpio0 wake from suspend will be supported
using buttons SW4 and SW7. Also, add pinctrl configuration for 0x954,
spi0_d0, which is an unused pin brought out to a header on the board
that in it's default state also connects to the gpio used for wakeup,
gpio0_3, which affects the state of the pin and prevents a working
wakeup unless we set the mux to a different state.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/am437x-gp-evm.dts')
| -rw-r--r-- | arch/arm/boot/dts/am437x-gp-evm.dts | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index e52b0132d43c..0127d11d1488 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -67,7 +67,13 @@ debounce-delay-ms = <5>; col-scan-delay-us = <2>; - row-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH /* Bank3, pin21 */ + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&matrix_keypad_default>; + pinctrl-1 = <&matrix_keypad_sleep>; + + linux,wakeup; + + row-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH /* Bank0, pin3 */ &gpio4 3 GPIO_ACTIVE_HIGH /* Bank4, pin3 */ &gpio4 2 GPIO_ACTIVE_HIGH>; /* Bank4, pin2 */ @@ -601,6 +607,24 @@ AM4372_IOPAD(0x974, PIN_INPUT_PULLDOWN | SLEWCTRL_FAST | DS0_PULL_UP_DOWN_EN | MUX_MODE0) /* uart0_txd.uart0_txd */ >; }; + + matrix_keypad_default: matrix_keypad_default { + pinctrl-single,pins = < + AM4372_IOPAD(0x9a4, PIN_OUTPUT | MUX_MODE7) + AM4372_IOPAD(0x9a8, PIN_OUTPUT | MUX_MODE7) + AM4372_IOPAD(0x9ac, PIN_INPUT | PULL_DISABLE | MUX_MODE9) + AM4372_IOPAD(0x954, PIN_INPUT_PULLDOWN | MUX_MODE0) + >; + }; + + matrix_keypad_sleep: matrix_keypad_sleep { + pinctrl-single,pins = < + AM4372_IOPAD(0x9a4, PULL_UP | MUX_MODE7) + AM4372_IOPAD(0x9a8, PULL_UP | MUX_MODE7) + AM4372_IOPAD(0x9ac, PIN_INPUT | PULL_DISABLE | MUX_MODE9) + AM4372_IOPAD(0x954, PIN_INPUT_PULLDOWN | MUX_MODE0) + >; + }; }; &uart0 { |