[PATCH RFC 1/2] ARM: imx6qdl: provide pinctrl configurations for DAT3 pull-down

[Russell King]

DAT3 needs to be pulled down if the USDHC card detection facility is
used rather than GPIO mode.  This is due to there being two methods
to detect a card - one via the card detect signal, and the other via
DAT3 being pulled up by the inserted card via an internal 50k resistor.

This requires DAT3 to be pulled down to hold the signal in the "no
card" state, using a 100k pull down setting.

Provide pinctrl settings for this for all USDHC controllers.

Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
 arch/arm/boot/dts/imx6qdl.dtsi |  104 ++++++++++++++++++++++++++++++++++++++++
 1 files changed, 104 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index ccd55c2..199fdab 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -1138,6 +1138,32 @@
 							MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc1_1_dat3cd: usdhc1grp-3 {
+						fsl,pins = <
+							MX6QDL_PAD_SD1_CMD__SD1_CMD    0x17059
+							MX6QDL_PAD_SD1_CLK__SD1_CLK    0x10059
+							MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
+							MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
+							MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
+							MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x13059
+							MX6QDL_PAD_NANDF_D0__SD1_DATA4 0x17059
+							MX6QDL_PAD_NANDF_D1__SD1_DATA5 0x17059
+							MX6QDL_PAD_NANDF_D2__SD1_DATA6 0x17059
+							MX6QDL_PAD_NANDF_D3__SD1_DATA7 0x17059
+						>;
+					};
+
+					pinctrl_usdhc1_2_dat3cd: usdhc1grp-4 {
+						fsl,pins = <
+							MX6QDL_PAD_SD1_CMD__SD1_CMD    0x17059
+							MX6QDL_PAD_SD1_CLK__SD1_CLK    0x10059
+							MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
+							MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
+							MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
+							MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x13059
+						>;
+					};
 				};
 
 				usdhc2 {
@@ -1166,6 +1192,32 @@
 							MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc2_1_dat3cd: usdhc2grp-3 {
+						fsl,pins = <
+							MX6QDL_PAD_SD2_CMD__SD2_CMD    0x17059
+							MX6QDL_PAD_SD2_CLK__SD2_CLK    0x10059
+							MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
+							MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
+							MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
+							MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x13059
+							MX6QDL_PAD_NANDF_D4__SD2_DATA4 0x17059
+							MX6QDL_PAD_NANDF_D5__SD2_DATA5 0x17059
+							MX6QDL_PAD_NANDF_D6__SD2_DATA6 0x17059
+							MX6QDL_PAD_NANDF_D7__SD2_DATA7 0x17059
+						>;
+					};
+
+					pinctrl_usdhc2_2_dat3cd: usdhc2grp-4 {
+						fsl,pins = <
+							MX6QDL_PAD_SD2_CMD__SD2_CMD    0x17059
+							MX6QDL_PAD_SD2_CLK__SD2_CLK    0x10059
+							MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
+							MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
+							MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
+							MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x13059
+						>;
+					};
 				};
 
 				usdhc3 {
@@ -1194,6 +1246,32 @@
 							MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc3_1_dat3cd: usdhc3grp-3 {
+						fsl,pins = <
+							MX6QDL_PAD_SD3_CMD__SD3_CMD    0x17059
+							MX6QDL_PAD_SD3_CLK__SD3_CLK    0x10059
+							MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
+							MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
+							MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
+							MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x13059
+							MX6QDL_PAD_SD3_DAT4__SD3_DATA4 0x17059
+							MX6QDL_PAD_SD3_DAT5__SD3_DATA5 0x17059
+							MX6QDL_PAD_SD3_DAT6__SD3_DATA6 0x17059
+							MX6QDL_PAD_SD3_DAT7__SD3_DATA7 0x17059
+						>;
+					};
+
+					pinctrl_usdhc3_2_dat3cd: usdhc3grp-4 {
+						fsl,pins = <
+							MX6QDL_PAD_SD3_CMD__SD3_CMD    0x17059
+							MX6QDL_PAD_SD3_CLK__SD3_CLK    0x10059
+							MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
+							MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
+							MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
+							MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x13059
+						>;
+					};
 				};
 
 				usdhc4 {
@@ -1222,6 +1300,32 @@
 							MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc4_1_dat3cd: usdhc4grp-3 {
+						fsl,pins = <
+							MX6QDL_PAD_SD4_CMD__SD4_CMD    0x17059
+							MX6QDL_PAD_SD4_CLK__SD4_CLK    0x10059
+							MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17059
+							MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17059
+							MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17059
+							MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x13059
+							MX6QDL_PAD_SD4_DAT4__SD4_DATA4 0x17059
+							MX6QDL_PAD_SD4_DAT5__SD4_DATA5 0x17059
+							MX6QDL_PAD_SD4_DAT6__SD4_DATA6 0x17059
+							MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17059
+						>;
+					};
+
+					pinctrl_usdhc4_2_dat3cd: usdhc4grp-4 {
+						fsl,pins = <
+							MX6QDL_PAD_SD4_CMD__SD4_CMD    0x17059
+							MX6QDL_PAD_SD4_CLK__SD4_CLK    0x10059
+							MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17059
+							MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17059
+							MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17059
+							MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x13059
+						>;
+					};
 				};
 
 				weim {
-- 
1.7.4.4