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Date: Wed, 19 Apr 2017 23:36:36 +0800
From: icenowy@...c.io
To: Chen-Yu Tsai <wens@...e.org>
Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>,
devicetree@...r.kernel.org, linux-sunxi@...glegroups.com,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/4] ARM: sunxi: Drop mmc0_cd_pin_reference_design pinmux
setting
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@...e.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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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 = <®_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";
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