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mmc: dw_mmc: modify the dt-binding for removing slot-node and supports-highspeed

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Almost all SoCs use one slot per host controller.
(Even if controller can support the multiple slot, Recommend to use one slot per host controller.)
Don't use the slot-node and deprecate the "supports-highspeed" property.
Instead, use the cap-mmc/sd-highspeed.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Tushar Behera <trblinux@gmail.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2014-08-07 16:37:59 +09:00 committed by Ulf Hansson
parent 26375b5c84
commit c83c8737e3
3 changed files with 15 additions and 26 deletions
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17
Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
View file

@ -46,13 +46,14 @@ Required Properties:
- if CIU clock divider value is 0 (that is divide by 1), both tx and rx
phase shift clocks should be 0.
Required properties for a slot:
Required properties for a slot (Deprecated - Recommend to use one slot per host):
* gpios: specifies a list of gpios used for command, clock and data bus. The
first gpio is the command line and the second gpio is the clock line. The
rest of the gpios (depending on the bus-width property) are the data lines in
no particular order. The format of the gpio specifier depends on the gpio
controller.
(Deprecated - Refer to Documentation/devicetree/binding/pinctrl/samsung-pinctrl.txt)
Example:
@ -69,21 +70,13 @@ Example:
dwmmc0@12200000 {
num-slots = <1>;
supports-highspeed;
cap-mmc-highspeed;
cap-sd-highspeed;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
slot@0 {
reg = <0>;
bus-width = <8>;
gpios = <&gpc0 0 2 0 3>, <&gpc0 1 2 0 3>,
<&gpc1 0 2 3 3>, <&gpc1 1 2 3 3>,
<&gpc1 2 2 3 3>, <&gpc1 3 2 3 3>,
<&gpc0 3 2 3 3>, <&gpc0 4 2 3 3>,
<&gpc0 5 2 3 3>, <&gpc0 6 2 3 3>;
};
bus-width = <8>;
};

12
Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
View file

@ -34,13 +34,11 @@ Example:
num-slots = <1>;
vmmc-supply = <&ldo12>;
fifo-depth = <0x100>;
supports-highspeed;
pinctrl-names = "default";
pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>;
slot@0 {
reg = <0>;
bus-width = <4>;
disable-wp;
cd-gpios = <&gpio10 3 0>;
};
bus-width = <4>;
disable-wp;
cd-gpios = <&gpio10 3 0>;
cap-mmc-highspeed;
cap-sd-highspeed;
};

12
Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
View file

@ -67,7 +67,8 @@ Optional properties:
* card-detect-delay: Delay in milli-seconds before detecting card after card
insert event. The default value is 0.
* supports-highspeed: Enables support for high speed cards (up to 50MHz)
* supports-highspeed (DEPRECATED): Enables support for high speed cards (up to 50MHz)
(use "cap-mmc-highspeed" or "cap-sd-highspeed" instead)
* broken-cd: as documented in mmc core bindings.
@ -98,14 +99,11 @@ board specific portions as listed below.
clock-frequency = <400000000>;
clock-freq-min-max = <400000 200000000>;
num-slots = <1>;
supports-highspeed;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
vmmc-supply = <&buck8>;
slot@0 {
reg = <0>;
bus-width = <8>;
};
bus-width = <8>;
cap-mmc-highspeed;
cap-sd-highspeed;
};