[PATCH 0/4] ARM: sunxi: device tree pinctrl clean up and H3 OTG

[PATCH 0/4] ARM: sunxi: device tree pinctrl clean up and H3 OTG

[Chen-Yu Tsai]

Hi Maxime,

This series has 2 parts. The parts are largely unrelated, though the
second part should be applied after the first part, so we don't
accidentally mux pins that we shouldn't. Hence I'm sending them
together.

The first 2 patches clean up the sunxi device tree files, removing
pinmux settings for common GPIO pins. These include the enable pins
for the common regulators, and the mmc0 card detect pin from the
reference designs.

The second part, the latter 2 patches, enable USB OTG on the Orangepi
PC, PC Plus, Plus 2E, and the Bananapi M2+. The first 3 boards are
bunched together, due to how the PC Plus and Plus 2E device trees include
the device tree of the Opi PC.

Regards
ChenYu

Chen-Yu Tsai (4):
  ARM: sunxi: common-regulators: Drop pinmux settings for GPIO pins
  ARM: sunxi: Drop mmc0_cd_pin_reference_design pinmux setting
  ARM: sun8i: h3: orangepi-pc: Enable USB OTG
  ARM: sun8i: h3: bananapi-m2-plus: Enable USB OTG

 arch/arm/boot/dts/sun4i-a10-a1000.dts              |  2 +-
 arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts         |  2 +-
 arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts    |  2 +-
 arch/arm/boot/dts/sun4i-a10-cubieboard.dts         |  2 +-
 arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts   |  2 +-
 arch/arm/boot/dts/sun4i-a10-gemei-g9.dts           |  2 +-
 arch/arm/boot/dts/sun4i-a10-hackberry.dts          |  2 +-
 arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts       |  6 +----
 arch/arm/boot/dts/sun4i-a10-inet1.dts              |  2 +-
 arch/arm/boot/dts/sun4i-a10-inet97fv2.dts          |  2 +-
 arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts       |  2 +-
 .../boot/dts/sun4i-a10-itead-iteaduino-plus.dts    |  2 +-
 arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts         |  2 +-
 arch/arm/boot/dts/sun4i-a10-marsboard.dts          |  2 +-
 arch/arm/boot/dts/sun4i-a10-mini-xplus.dts         |  2 +-
 arch/arm/boot/dts/sun4i-a10-mk802.dts              |  2 +-
 arch/arm/boot/dts/sun4i-a10-mk802ii.dts            |  2 +-
 arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts     |  2 +-
 arch/arm/boot/dts/sun4i-a10-pcduino.dts            |  2 +-
 arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts   |  2 +-
 arch/arm/boot/dts/sun4i-a10.dtsi                   |  6 -----
 arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts       |  8 ------
 arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts       |  4 ---
 arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts   |  4 ---
 arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts           |  4 ---
 .../boot/dts/sun5i-a13-empire-electronix-d709.dts  |  4 ---
 arch/arm/boot/dts/sun5i-a13-hsg-h702.dts           |  5 ----
 arch/arm/boot/dts/sun5i-a13-olinuxino.dts          |  4 ---
 arch/arm/boot/dts/sun6i-a31-hummingbird.dts        |  5 ----
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts        |  2 +-
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts         |  2 +-
 arch/arm/boot/dts/sun7i-a20-hummingbird.dts        |  2 +-
 arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts          |  2 +-
 arch/arm/boot/dts/sun7i-a20-icnova-swac.dts        |  2 +-
 arch/arm/boot/dts/sun7i-a20-itead-ibox.dts         |  2 +-
 arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts          |  8 ------
 arch/arm/boot/dts/sun7i-a20-m3.dts                 |  2 +-
 arch/arm/boot/dts/sun7i-a20-mk808c.dts             |  2 +-
 arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts     |  2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts     |  2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts    |  2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts    |  2 +-
 arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts      |  2 +-
 arch/arm/boot/dts/sun7i-a20-pcduino3.dts           |  6 +----
 arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts     |  2 +-
 arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts   |  2 +-
 arch/arm/boot/dts/sun7i-a20.dtsi                   |  6 -----
 arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts    | 22 +++++++++++++++-
 arch/arm/boot/dts/sun8i-h3-orangepi-2.dts          |  4 ---
 arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts         | 22 +++++++++++++++-
 arch/arm/boot/dts/sunxi-common-regulators.dtsi     | 30 ----------------------
 51 files changed, 78 insertions(+), 138 deletions(-)

-- 
2.11.0

[PATCH 1/4] ARM: sunxi: common-regulators: Drop pinmux settings for GPIO pins

[Chen-Yu Tsai]

As part of our effort to move pinctrl/GPIO interlocking into the
driver where it belongs, this patch drops the definition and usage
of the pinmux settings for the common regulators defined in
sunxi-common-regulators.dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts       |  4 ---
 arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts       |  8 ------
 arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts       |  4 ---
 arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts   |  4 ---
 arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts           |  4 ---
 .../boot/dts/sun5i-a13-empire-electronix-d709.dts  |  4 ---
 arch/arm/boot/dts/sun5i-a13-hsg-h702.dts           |  5 ----
 arch/arm/boot/dts/sun5i-a13-olinuxino.dts          |  4 ---
 arch/arm/boot/dts/sun6i-a31-hummingbird.dts        |  5 ----
 arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts          |  8 ------
 arch/arm/boot/dts/sun7i-a20-pcduino3.dts           |  4 ---
 arch/arm/boot/dts/sun8i-h3-orangepi-2.dts          |  4 ---
 arch/arm/boot/dts/sunxi-common-regulators.dtsi     | 30 ----------------------
 13 files changed, 88 deletions(-)

diff --git a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
index 85dcf81ab64e..bc4351bb851f 100644
--- a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
@@ -120,10 +120,6 @@
 	status = "okay";
 };
 
-&usb2_vbus_pin_a {
-	pins = "PH6";
-};
-
 &usb_otg {
 	dr_mode = "otg";
 	status = "okay";
diff --git a/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts b/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
index c6f742a7e69f..d2dee8d434bf 100644
--- a/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-auxtek-t003.dts
@@ -136,14 +136,6 @@
 	status = "okay";
 };
 
-&usb0_vbus_pin_a {
-	pins = "PG13";
-};
-
-&usb1_vbus_pin_a {
-	pins = "PB10";
-};
-
 &usb_otg {
 	dr_mode = "host";
 	status = "okay";
diff --git a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
index a27c3fa58736..16f839df4227 100644
--- a/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-auxtek-t004.dts
@@ -168,10 +168,6 @@
 	status = "okay";
 };
 
-&usb1_vbus_pin_a {
-	pins = "PG13";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 894f874a5beb..eff36fe1aaa3 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -271,10 +271,6 @@
 	status = "okay";
 };
 
-&usb0_vbus_pin_a {
-	pins = "PG11";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
index ea3e5655a61b..5482be174e12 100644
--- a/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-wobo-i5.dts
@@ -216,10 +216,6 @@
 	status = "okay";
 };
 
-&usb1_vbus_pin_a {
-	pins = "PG12";
-};
-
 &usbphy {
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";
diff --git a/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts b/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
index 34411d27aadf..3dbb0d7c2f8c 100644
--- a/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
+++ b/arch/arm/boot/dts/sun5i-a13-empire-electronix-d709.dts
@@ -207,10 +207,6 @@
 	status = "okay";
 };
 
-&usb0_vbus_pin_a {
-	pins = "PG12";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index 2489c16f7efa..584fa579ded2 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -186,7 +186,6 @@
 };
 
 &reg_usb0_vbus {
-	pinctrl-0 = <&usb0_vbus_pin_a>;
 	gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
 	status = "okay";
 };
@@ -202,10 +201,6 @@
 	status = "okay";
 };
 
-&usb0_vbus_pin_a {
-	pins = "PG12";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index 95f591bb8ced..38072c7e10e2 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -269,10 +269,6 @@
 	status = "okay";
 };
 
-&usb0_vbus_pin_a {
-	pins = "PG12";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
index d4f74f476f25..b4c87a23e3f8 100644
--- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
+++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
@@ -344,11 +344,6 @@
 	status = "okay";
 };
 
-&usb1_vbus_pin_a {
-	/* different pin from sunxi-common-regulators */
-	pins = "PH24";
-};
-
 &usbphy {
 	usb0_id_det-gpio = <&pio 0 15 GPIO_ACTIVE_HIGH>; /* PA15 */
 	usb0_vbus_det-gpio = <&pio 0 16 GPIO_ACTIVE_HIGH>; /* PA16 */
diff --git a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
index 96bb0bc198ba..004b6ddac813 100644
--- a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
+++ b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
@@ -85,10 +85,6 @@
 	};
 };
 
-&ahci_pwr_pin_a {
-	pins = "PB3";
-};
-
 &ahci {
 	target-supply = <&reg_ahci_5v>;
 	status = "okay";
@@ -319,10 +315,6 @@
 	status = "okay";
 };
 
-&usb2_vbus_pin_a {
-	pins = "PH12";
-};
-
 &usbphy {
 	pinctrl-names = "default";
 	pinctrl-0 = <&usb0_id_detect_pin>;
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
index 7c96b53b76bf..98177b5891cb 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
@@ -106,10 +106,6 @@
 	status = "okay";
 };
 
-&ahci_pwr_pin_a {
-	pins = "PH2";
-};
-
 &codec {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
index 5b6d14555b7c..d7d5330c566f 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-2.dts
@@ -195,10 +195,6 @@
 	status = "disabled";
 };
 
-&usb1_vbus_pin_a {
-	pins = "PG13";
-};
-
 &usbphy {
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";
diff --git a/arch/arm/boot/dts/sunxi-common-regulators.dtsi b/arch/arm/boot/dts/sunxi-common-regulators.dtsi
index ce5c53e4452f..d8e5826fb3de 100644
--- a/arch/arm/boot/dts/sunxi-common-regulators.dtsi
+++ b/arch/arm/boot/dts/sunxi-common-regulators.dtsi
@@ -44,33 +44,9 @@
 
 #include <dt-bindings/gpio/gpio.h>
 
-&pio {
-	ahci_pwr_pin_a: ahci_pwr_pin@0 {
-		pins = "PB8";
-		function = "gpio_out";
-	};
-
-	usb0_vbus_pin_a: usb0_vbus_pin@0 {
-		pins = "PB9";
-		function = "gpio_out";
-	};
-
-	usb1_vbus_pin_a: usb1_vbus_pin@0 {
-		pins = "PH6";
-		function = "gpio_out";
-	};
-
-	usb2_vbus_pin_a: usb2_vbus_pin@0 {
-		pins = "PH3";
-		function = "gpio_out";
-	};
-};
-
 / {
 	reg_ahci_5v: ahci-5v {
 		compatible = "regulator-fixed";
-		pinctrl-names = "default";
-		pinctrl-0 = <&ahci_pwr_pin_a>;
 		regulator-name = "ahci-5v";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -82,8 +58,6 @@
 
 	reg_usb0_vbus: usb0-vbus {
 		compatible = "regulator-fixed";
-		pinctrl-names = "default";
-		pinctrl-0 = <&usb0_vbus_pin_a>;
 		regulator-name = "usb0-vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -94,8 +68,6 @@
 
 	reg_usb1_vbus: usb1-vbus {
 		compatible = "regulator-fixed";
-		pinctrl-names = "default";
-		pinctrl-0 = <&usb1_vbus_pin_a>;
 		regulator-name = "usb1-vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
@@ -107,8 +79,6 @@
 
 	reg_usb2_vbus: usb2-vbus {
 		compatible = "regulator-fixed";
-		pinctrl-names = "default";
-		pinctrl-0 = <&usb2_vbus_pin_a>;
 		regulator-name = "usb2-vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-- 
2.11.0

[PATCH 2/4] ARM: sunxi: Drop mmc0_cd_pin_reference_design pinmux setting

[Chen-Yu Tsai]

As part of our effort to move pinctrl/GPIO interlocking into the
driver where it belongs, this patch drops the definition and usage
of the mmc0_cd_pin_reference_design pinmux setting for the default
mmc0 card detect GPIO pin.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun4i-a10-a1000.dts                | 2 +-
 arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts           | 2 +-
 arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts      | 2 +-
 arch/arm/boot/dts/sun4i-a10-cubieboard.dts           | 2 +-
 arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts     | 2 +-
 arch/arm/boot/dts/sun4i-a10-gemei-g9.dts             | 2 +-
 arch/arm/boot/dts/sun4i-a10-hackberry.dts            | 2 +-
 arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts         | 2 +-
 arch/arm/boot/dts/sun4i-a10-inet1.dts                | 2 +-
 arch/arm/boot/dts/sun4i-a10-inet97fv2.dts            | 2 +-
 arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts         | 2 +-
 arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts | 2 +-
 arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts           | 2 +-
 arch/arm/boot/dts/sun4i-a10-marsboard.dts            | 2 +-
 arch/arm/boot/dts/sun4i-a10-mini-xplus.dts           | 2 +-
 arch/arm/boot/dts/sun4i-a10-mk802.dts                | 2 +-
 arch/arm/boot/dts/sun4i-a10-mk802ii.dts              | 2 +-
 arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts       | 2 +-
 arch/arm/boot/dts/sun4i-a10-pcduino.dts              | 2 +-
 arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts     | 2 +-
 arch/arm/boot/dts/sun4i-a10.dtsi                     | 6 ------
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts          | 2 +-
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts           | 2 +-
 arch/arm/boot/dts/sun7i-a20-hummingbird.dts          | 2 +-
 arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts            | 2 +-
 arch/arm/boot/dts/sun7i-a20-icnova-swac.dts          | 2 +-
 arch/arm/boot/dts/sun7i-a20-itead-ibox.dts           | 2 +-
 arch/arm/boot/dts/sun7i-a20-m3.dts                   | 2 +-
 arch/arm/boot/dts/sun7i-a20-mk808c.dts               | 2 +-
 arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts       | 2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts       | 2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts      | 2 +-
 arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts      | 2 +-
 arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts        | 2 +-
 arch/arm/boot/dts/sun7i-a20-pcduino3.dts             | 2 +-
 arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts       | 2 +-
 arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts     | 2 +-
 arch/arm/boot/dts/sun7i-a20.dtsi                     | 6 ------
 38 files changed, 36 insertions(+), 48 deletions(-)

diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index f2a01fe2bebc..f80d37ddc4c6 100644
--- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
+++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
@@ -171,7 +171,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
index 942d739a4384..6b02de592a02 100644
--- a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
+++ b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
@@ -109,7 +109,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
index 17f8c5ec011c..a7d61994b8fd 100644
--- a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
+++ b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
@@ -128,7 +128,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index d844938e2aa7..a698a994e5ff 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -142,7 +142,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
index aad3bec1cb39..e0777ae808c7 100644
--- a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
+++ b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
@@ -163,7 +163,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
index 9616cdecce93..d8bfd7b74916 100644
--- a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
+++ b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
@@ -146,7 +146,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH01 */
diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
index a1a7282199d5..856cfc9128e6 100644
--- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
@@ -107,7 +107,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
index bc4351bb851f..6506595268b2 100644
--- a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
@@ -79,7 +79,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-inet1.dts b/arch/arm/boot/dts/sun4i-a10-inet1.dts
index b8923b92cb36..d51d8c302daf 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet1.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet1.dts
@@ -161,7 +161,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
index a1a2bbb3f9d3..a8e479fe43ca 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
@@ -147,7 +147,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
index 4a27eb9102cd..2acb89a87d41 100644
--- a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
+++ b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
@@ -305,7 +305,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
index 4e798f014c99..92e3e030ced3 100644
--- a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
+++ b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
@@ -100,7 +100,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
index 308dc1513041..92b2d4af3d21 100644
--- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
+++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
@@ -140,7 +140,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-marsboard.dts b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
index 98a5f7258dca..0f927da28ee1 100644
--- a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
@@ -141,7 +141,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
index 484c57493bd2..a5ed9e4e22c6 100644
--- a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
@@ -97,7 +97,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802.dts b/arch/arm/boot/dts/sun4i-a10-mk802.dts
index 2b75745cd246..81db6824a2c7 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802.dts
@@ -72,7 +72,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
index c861fa7e356c..e74a881fd9a7 100644
--- a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
+++ b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
@@ -83,7 +83,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
index 3a2522a9419d..462412ee903c 100644
--- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
@@ -145,7 +145,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index 83596fd2ccfc..84f55e76df0c 100644
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
@@ -147,7 +147,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
index a68c7cc53b94..c0f8c88b5a7d 100644
--- a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
@@ -149,7 +149,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index b63668ece151..41c2579143fd 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -1030,12 +1030,6 @@
 				bias-pull-up;
 			};
 
-			mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
-				pins = "PH1";
-				function = "gpio_in";
-				bias-pull-up;
-			};
-
 			ps20_pins_a: ps20@0 {
 				pins = "PI20", "PI21";
 				function = "ps2";
diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index a2eab7aa80e0..7ac5bcc9f972 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -137,7 +137,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 102903e83bd2..4ebeecf9c3d7 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -178,7 +178,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
index 99c00b9a1546..6e6264cd69f8 100644
--- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
+++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
@@ -160,7 +160,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v0>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
index 4da49717da21..e5cbcad3a556 100644
--- a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
+++ b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
@@ -157,7 +157,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
index 28d3abbdc2d4..794e7617f545 100644
--- a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
+++ b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
@@ -104,7 +104,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 8 5 GPIO_ACTIVE_HIGH>; /* PI5 */
diff --git a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
index d52222c82cb8..8a8a6dbcd414 100644
--- a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
+++ b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
@@ -121,7 +121,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-m3.dts b/arch/arm/boot/dts/sun7i-a20-m3.dts
index 86f69813683e..43c94787ef07 100644
--- a/arch/arm/boot/dts/sun7i-a20-m3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-m3.dts
@@ -117,7 +117,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-mk808c.dts b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
index c4ee30709f3a..f7413094183c 100644
--- a/arch/arm/boot/dts/sun7i-a20-mk808c.dts
+++ b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
@@ -109,7 +109,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v0>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
index 1af5b46862cb..64c8ef9a2756 100644
--- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
@@ -187,7 +187,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
index dcd0f7a0dffa..2ce1a9f13a17 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
@@ -130,7 +130,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index e7d45425758c..097bd755764c 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -131,7 +131,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index def0ad8395bb..0b7403e4d687 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -198,7 +198,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
index f47a5c46bc20..39bc73db72e5 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
@@ -130,7 +130,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
index 98177b5891cb..777152a3df0f 100644
--- a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
+++ b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
@@ -156,7 +156,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
index e19f17177755..f8d0aafb9f88 100644
--- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
@@ -151,7 +151,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
index c3078d4f1093..84462d7961f5 100644
--- a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
@@ -120,7 +120,7 @@
 
 &mmc0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
+	pinctrl-0 = <&mmc0_pins_a>;
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
 	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 93aa55970bd7..c03b59aaec82 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -1190,12 +1190,6 @@
 				bias-pull-up;
 			};
 
-			mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
-				pins = "PH1";
-				function = "gpio_in";
-				bias-pull-up;
-			};
-
 			mmc2_pins_a: mmc2@0 {
 				pins = "PC6", "PC7", "PC8",
 				       "PC9", "PC10", "PC11";
-- 
2.11.0

[PATCH 3/4] ARM: sun8i: h3: orangepi-pc: Enable USB OTG

[Chen-Yu Tsai]

The Orange Pi PC, PC Plus, and Plus 2E all have a USB OTG port
that can be used in both powered host mode and peripheral mode.
When in peripheral mode, the port does not power the board.
There is no VBUS sensing on the port. All three boards have all
related pins routed the same way.

The device tree file for the Orange Pi Plus 2E is based on the
Orange Pi PC Plus, which itself is based on the Orange Pi PC.
Changes to the base Orange Pi PC device tree file affects all 3
boards.

This patch adds the regulator controlling VBUS on the OTG port,
the GPIO for the ID detect pin, and enables the USB OTG and host
controllers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
index f148111c326d..1a044b17d6c6 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts
@@ -97,6 +97,10 @@
 	status = "okay";
 };
 
+&ehci0 {
+	status = "okay";
+};
+
 &ehci1 {
 	status = "okay";
 };
@@ -125,6 +129,10 @@
 	status = "okay";
 };
 
+&ohci0 {
+	status = "okay";
+};
+
 &ohci1 {
 	status = "okay";
 };
@@ -156,6 +164,11 @@
 	};
 };
 
+&reg_usb0_vbus {
+	gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;
@@ -180,7 +193,14 @@
 	status = "disabled";
 };
 
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
 &usbphy {
-	/* USB VBUS is always on */
+	usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+	usb0_vbus-supply = <&reg_usb0_vbus>;
+	/* VBUS on USB host ports are always on */
 	status = "okay";
 };
-- 
2.11.0

[PATCH 4/4] ARM: sun8i: h3: bananapi-m2-plus: Enable USB OTG

[Chen-Yu Tsai]

The Bananapi M2 Plus has a USB OTG port that can be used in both
powered host mode and peripheral mode. When in peripheral mode,
the port does not power the board. There is no VBUS sensing on
the port.

This patch adds the regulator controlling VBUS on the OTG port,
the GPIO for the ID detect pin, and enables the USB OTG and host
controllers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
index 52acbe111cad..17c7c088cdea 100644
--- a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
@@ -92,6 +92,10 @@
 	};
 };
 
+&ehci0 {
+	status = "okay";
+};
+
 &ehci1 {
 	status = "okay";
 };
@@ -145,6 +149,10 @@
 	status = "okay";
 };
 
+&ohci0 {
+	status = "okay";
+};
+
 &ohci1 {
 	status = "okay";
 };
@@ -170,6 +178,11 @@
 	};
 };
 
+&reg_usb0_vbus {
+	gpio = <&pio 3 11 GPIO_ACTIVE_HIGH>; /* PD11 */
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;
@@ -182,7 +195,14 @@
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
 &usbphy {
-	/* USB VBUS is on as long as VCC-IO is on */
+	usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+	usb0_vbus-supply = <&reg_usb0_vbus>;
+	/* USB host VBUS is on as long as VCC-IO is on */
 	status = "okay";
 };
-- 
2.11.0

Re: [PATCH 0/4] ARM: sunxi: device tree pinctrl clean up and H3 OTG

[Maxime Ripard]

[-- Attachment #1: Type: text/plain, Size: 925 bytes --]

On Wed, Apr 19, 2017 at 01:09:15PM +0800, Chen-Yu Tsai wrote:
> Hi Maxime,
> 
> This series has 2 parts. The parts are largely unrelated, though the
> second part should be applied after the first part, so we don't
> accidentally mux pins that we shouldn't. Hence I'm sending them
> together.
> 
> The first 2 patches clean up the sunxi device tree files, removing
> pinmux settings for common GPIO pins. These include the enable pins
> for the common regulators, and the mmc0 card detect pin from the
> reference designs.
> 
> The second part, the latter 2 patches, enable USB OTG on the Orangepi
> PC, PC Plus, Plus 2E, and the Bananapi M2+. The first 3 boards are
> bunched together, due to how the PC Plus and Plus 2E device trees include
> the device tree of the Opi PC.

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 801 bytes --]

Re: [PATCH 2/4] ARM: sunxi: Drop mmc0_cd_pin_reference_design pinmux setting

[icenowy]

在 2017-04-19 13:09，Chen-Yu Tsai 写道：
> As part of our effort to move pinctrl/GPIO interlocking into the
> driver where it belongs, this patch drops the definition and usage
> of the mmc0_cd_pin_reference_design pinmux setting for the default
> mmc0 card detect GPIO pin.
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>  arch/arm/boot/dts/sun4i-a10-a1000.dts                | 2 +-
>  arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts           | 2 +-
>  arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts      | 2 +-
>  arch/arm/boot/dts/sun4i-a10-cubieboard.dts           | 2 +-
>  arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts     | 2 +-
>  arch/arm/boot/dts/sun4i-a10-gemei-g9.dts             | 2 +-
>  arch/arm/boot/dts/sun4i-a10-hackberry.dts            | 2 +-
>  arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts         | 2 +-
>  arch/arm/boot/dts/sun4i-a10-inet1.dts                | 2 +-
>  arch/arm/boot/dts/sun4i-a10-inet97fv2.dts            | 2 +-
>  arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts         | 2 +-
>  arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts | 2 +-
>  arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts           | 2 +-
>  arch/arm/boot/dts/sun4i-a10-marsboard.dts            | 2 +-
>  arch/arm/boot/dts/sun4i-a10-mini-xplus.dts           | 2 +-
>  arch/arm/boot/dts/sun4i-a10-mk802.dts                | 2 +-
>  arch/arm/boot/dts/sun4i-a10-mk802ii.dts              | 2 +-
>  arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts       | 2 +-
>  arch/arm/boot/dts/sun4i-a10-pcduino.dts              | 2 +-
>  arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts     | 2 +-
>  arch/arm/boot/dts/sun4i-a10.dtsi                     | 6 ------
>  arch/arm/boot/dts/sun7i-a20-cubieboard2.dts          | 2 +-
>  arch/arm/boot/dts/sun7i-a20-cubietruck.dts           | 2 +-
>  arch/arm/boot/dts/sun7i-a20-hummingbird.dts          | 2 +-
>  arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts            | 2 +-
>  arch/arm/boot/dts/sun7i-a20-icnova-swac.dts          | 2 +-
>  arch/arm/boot/dts/sun7i-a20-itead-ibox.dts           | 2 +-
>  arch/arm/boot/dts/sun7i-a20-m3.dts                   | 2 +-
>  arch/arm/boot/dts/sun7i-a20-mk808c.dts               | 2 +-
>  arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts       | 2 +-
>  arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts       | 2 +-
>  arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts      | 2 +-
>  arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts      | 2 +-
>  arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts        | 2 +-
>  arch/arm/boot/dts/sun7i-a20-pcduino3.dts             | 2 +-
>  arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts       | 2 +-
>  arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts     | 2 +-
>  arch/arm/boot/dts/sun7i-a20.dtsi                     | 6 ------
>  38 files changed, 36 insertions(+), 48 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts
> b/arch/arm/boot/dts/sun4i-a10-a1000.dts
> index f2a01fe2bebc..f80d37ddc4c6 100644
> --- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
> @@ -171,7 +171,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
> b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
> index 942d739a4384..6b02de592a02 100644
> --- a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
> @@ -109,7 +109,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
> b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
> index 17f8c5ec011c..a7d61994b8fd 100644
> --- a/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-chuwi-v7-cw0825.dts
> @@ -128,7 +128,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
> b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
> index d844938e2aa7..a698a994e5ff 100644
> --- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
> @@ -142,7 +142,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
> b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
> index aad3bec1cb39..e0777ae808c7 100644
> --- a/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-dserve-dsrv9703c.dts
> @@ -163,7 +163,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> index 9616cdecce93..d8bfd7b74916 100644
> --- a/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-gemei-g9.dts
> @@ -146,7 +146,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH01 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
> b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
> index a1a7282199d5..856cfc9128e6 100644
> --- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
> @@ -107,7 +107,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
> b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
> index bc4351bb851f..6506595268b2 100644
> --- a/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-hyundai-a7hd.dts
> @@ -79,7 +79,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-inet1.dts
> b/arch/arm/boot/dts/sun4i-a10-inet1.dts
> index b8923b92cb36..d51d8c302daf 100644
> --- a/arch/arm/boot/dts/sun4i-a10-inet1.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-inet1.dts
> @@ -161,7 +161,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
> b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
> index a1a2bbb3f9d3..a8e479fe43ca 100644
> --- a/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-inet97fv2.dts
> @@ -147,7 +147,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
> b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
> index 4a27eb9102cd..2acb89a87d41 100644
> --- a/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-inet9f-rev03.dts
> @@ -305,7 +305,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
> b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
> index 4e798f014c99..92e3e030ced3 100644
> --- a/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-itead-iteaduino-plus.dts
> @@ -100,7 +100,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
> b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
> index 308dc1513041..92b2d4af3d21 100644
> --- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
> @@ -140,7 +140,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
> b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
> index 98a5f7258dca..0f927da28ee1 100644
> --- a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
> @@ -141,7 +141,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
> b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
> index 484c57493bd2..a5ed9e4e22c6 100644
> --- a/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
> @@ -97,7 +97,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-mk802.dts
> b/arch/arm/boot/dts/sun4i-a10-mk802.dts
> index 2b75745cd246..81db6824a2c7 100644
> --- a/arch/arm/boot/dts/sun4i-a10-mk802.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-mk802.dts
> @@ -72,7 +72,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
> b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
> index c861fa7e356c..e74a881fd9a7 100644
> --- a/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-mk802ii.dts
> @@ -83,7 +83,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
> b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
> index 3a2522a9419d..462412ee903c 100644
> --- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
> @@ -145,7 +145,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
> b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
> index 83596fd2ccfc..84f55e76df0c 100644
> --- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
> @@ -147,7 +147,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> index a68c7cc53b94..c0f8c88b5a7d 100644
> --- a/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> +++ b/arch/arm/boot/dts/sun4i-a10-pov-protab2-ips9.dts
> @@ -149,7 +149,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi 
> b/arch/arm/boot/dts/sun4i-a10.dtsi
> index b63668ece151..41c2579143fd 100644
> --- a/arch/arm/boot/dts/sun4i-a10.dtsi
> +++ b/arch/arm/boot/dts/sun4i-a10.dtsi
> @@ -1030,12 +1030,6 @@
>  				bias-pull-up;
>  			};
> 
> -			mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
> -				pins = "PH1";
> -				function = "gpio_in";
> -				bias-pull-up;
> -			};
> -
>  			ps20_pins_a: ps20@0 {
>  				pins = "PI20", "PI21";
>  				function = "ps2";
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> index a2eab7aa80e0..7ac5bcc9f972 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
> @@ -137,7 +137,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> index 102903e83bd2..4ebeecf9c3d7 100644
> --- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
> @@ -178,7 +178,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
> b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
> index 99c00b9a1546..6e6264cd69f8 100644
> --- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
> @@ -160,7 +160,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v0>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
> b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
> index 4da49717da21..e5cbcad3a556 100644
> --- a/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-i12-tvbox.dts
> @@ -157,7 +157,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
> b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
> index 28d3abbdc2d4..794e7617f545 100644
> --- a/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-icnova-swac.dts
> @@ -104,7 +104,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 8 5 GPIO_ACTIVE_HIGH>; /* PI5 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
> b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
> index d52222c82cb8..8a8a6dbcd414 100644
> --- a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts
> @@ -121,7 +121,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-m3.dts
> b/arch/arm/boot/dts/sun7i-a20-m3.dts
> index 86f69813683e..43c94787ef07 100644
> --- a/arch/arm/boot/dts/sun7i-a20-m3.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-m3.dts
> @@ -117,7 +117,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-mk808c.dts
> b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
> index c4ee30709f3a..f7413094183c 100644
> --- a/arch/arm/boot/dts/sun7i-a20-mk808c.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-mk808c.dts
> @@ -109,7 +109,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v0>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
> b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
> index 1af5b46862cb..64c8ef9a2756 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
> @@ -187,7 +187,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
> b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
> index dcd0f7a0dffa..2ce1a9f13a17 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime.dts
> @@ -130,7 +130,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> index e7d45425758c..097bd755764c 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
> @@ -131,7 +131,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> index def0ad8395bb..0b7403e4d687 100644
> --- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
> @@ -198,7 +198,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
> b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
> index f47a5c46bc20..39bc73db72e5 100644
> --- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts
> @@ -130,7 +130,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
> b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
> index 98177b5891cb..777152a3df0f 100644
> --- a/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-pcduino3.dts
> @@ -156,7 +156,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
> b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
> index e19f17177755..f8d0aafb9f88 100644
> --- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
> @@ -151,7 +151,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
> b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
> index c3078d4f1093..84462d7961f5 100644
> --- a/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
> +++ b/arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts
> @@ -120,7 +120,7 @@
> 
>  &mmc0 {
>  	pinctrl-names = "default";
> -	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_reference_design>;
> +	pinctrl-0 = <&mmc0_pins_a>;
>  	vmmc-supply = <&reg_vcc3v3>;
>  	bus-width = <4>;
>  	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi 
> b/arch/arm/boot/dts/sun7i-a20.dtsi
> index 93aa55970bd7..c03b59aaec82 100644
> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
> @@ -1190,12 +1190,6 @@
>  				bias-pull-up;
>  			};
> 
> -			mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
> -				pins = "PH1";
> -				function = "gpio_in";
> -				bias-pull-up;

It needs pull up, so shouldn't be dropped.

(Although there may be external pull-up resistors on the board;
however last time we removed the pull-up on MMC node many boards
failed, so we cannot rely on external pull-up resistors)

> -			};
> -
>  			mmc2_pins_a: mmc2@0 {
>  				pins = "PC6", "PC7", "PC8",
>  				       "PC9", "PC10", "PC11";

Re: [linux-sunxi] Re: [PATCH 2/4] ARM: sunxi: Drop mmc0_cd_pin_reference_design pinmux setting

[Chen-Yu Tsai]

On Wed, Apr 19, 2017 at 11:36 PM,  <icenowy@aosc.io> wrote:
> 在 2017-04-19 13:09，Chen-Yu Tsai 写道：
>>
>> As part of our effort to move pinctrl/GPIO interlocking into the
>> driver where it belongs, this patch drops the definition and usage
>> of the mmc0_cd_pin_reference_design pinmux setting for the default
>> mmc0 card detect GPIO pin.
>>
>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>

[...]

>> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi
>> b/arch/arm/boot/dts/sun7i-a20.dtsi
>> index 93aa55970bd7..c03b59aaec82 100644
>> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
>> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
>> @@ -1190,12 +1190,6 @@
>>                                 bias-pull-up;
>>                         };
>>
>> -                       mmc0_cd_pin_reference_design: mmc0_cd_pin@0 {
>> -                               pins = "PH1";
>> -                               function = "gpio_in";
>> -                               bias-pull-up;
>
>
> It needs pull up, so shouldn't be dropped.
>
> (Although there may be external pull-up resistors on the board;
> however last time we removed the pull-up on MMC node many boards
> failed, so we cannot rely on external pull-up resistors)

I checked the boards that I have schematics, and the reference design.
All have proper external pull-up resistors for this pin, unlike the
other mmc pins.

If some board doesn't, it really needs to be singled out and handled
separately. Have you encountered any issues?

Regards
ChenYu

>
>> -                       };
>> -
>>                         mmc2_pins_a: mmc2@0 {
>>                                 pins = "PC6", "PC7", "PC8",
>>                                        "PC9", "PC10", "PC11";
>
>
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