[PATCH v1 1/2] ARM: dts: imx6sl: add fec sleep pinctrl for pin PM state
Fugang Duan
b38611 at freescale.com
Mon May 19 23:50:44 PDT 2014
when system suspend, need to set pins to low power state to
save IO power consumption, there are three states of pinctrl:
"default", "idle" and "sleep". Currently enet supports default
and sleep state.
Signed-off-by: Fugang Duan <B38611 at freescale.com>
---
arch/arm/boot/dts/imx6sl-evk.dts | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index a8d9a93..050786d 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -116,8 +116,9 @@
};
&fec {
- pinctrl-names = "default";
+ pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_fec>;
+ pinctrl-1 = <&pinctrl_fec_sleep>;
phy-mode = "rmii";
status = "okay";
};
@@ -300,6 +301,19 @@
>;
};
+ pinctrl_fec_sleep: fecgrp-sleep {
+ fsl,pins = <
+ MX6SL_PAD_FEC_MDC__GPIO4_IO23 0x3080
+ MX6SL_PAD_FEC_CRS_DV__GPIO4_IO25 0x3080
+ MX6SL_PAD_FEC_RXD0__GPIO4_IO17 0x3080
+ MX6SL_PAD_FEC_RXD1__GPIO4_IO18 0x3080
+ MX6SL_PAD_FEC_TX_EN__GPIO4_IO22 0x3080
+ MX6SL_PAD_FEC_TXD0__GPIO4_IO24 0x3080
+ MX6SL_PAD_FEC_TXD1__GPIO4_IO16 0x3080
+ MX6SL_PAD_FEC_REF_CLK__GPIO4_IO26 0x3080
+ >;
+ };
+
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX6SL_PAD_I2C1_SCL__I2C1_SCL 0x4001b8b1
--
1.7.8
More information about the linux-arm-kernel
mailing list