[PATCH 11/13] ARM: dts: am437x-gp-evm: Add pinctrl sleep states for dcan pins
From: Roger Quadros <hidden>
Date: 2014-09-08 14:10:40
Also in:
linux-can, linux-omap
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Dave Gerlach <redacted> Define pinctrl sleep states for both dcan0 and dcan1 to place pull downs on the lines to optimize power savings during suspend. Signed-off-by: Dave Gerlach <redacted> Signed-off-by: Sekhar Nori <redacted> --- arch/arm/boot/dts/am437x-gp-evm.dts | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 6d03baa..ca9e1ab 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts@@ -262,12 +262,26 @@ >; }; + dcan0_sleep: dcan0_sleep_pins { + pinctrl-single,pins = < + 0x178 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x17c (PIN_INPUT_PULLDOWN | MUX_MODE7) + >; + }; + dcan1_default: dcan1_default_pins { pinctrl-single,pins = < 0x180 (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* uart1_rxd.d_can1_tx */ 0x184 (PIN_INPUT_PULLUP | MUX_MODE2) /* uart1_txd.d_can1_rx */ >; }; + + dcan1_sleep: dcan1_sleep_pins { + pinctrl-single,pins = < + 0x180 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x184 (PIN_INPUT_PULLDOWN | MUX_MODE7) + >; + }; }; &i2c0 {
@@ -527,13 +541,15 @@ }; &dcan0 { - pinctrl-names = "default"; + pinctrl-names = "default", "sleep"; pinctrl-0 = <&dcan0_default>; + pinctrl-1 = <&dcan0_sleep>; status = "okay"; }; &dcan1 { - pinctrl-names = "default"; + pinctrl-names = "default", "sleep"; pinctrl-0 = <&dcan1_default>; + pinctrl-1 = <&dcan1_sleep>; status = "okay"; };
--
1.8.3.2