[PATCH 03/20] mmc: mmci: Update DT documentation
From: Rob Herring <hidden>
Date: 2014-03-21 15:03:39
Also in:
linux-devicetree
On Fri, Mar 21, 2014 at 7:14 AM, Ulf Hansson [off-list ref] wrote:
quoted hunk
Document how to configure the regulator supplies and add an example of a typical mmci DT node. Signed-off-by: Ulf Hansson <redacted> --- Documentation/devicetree/bindings/mmc/mmci.txt | 35 ++++++++++++++++++++++-- 1 file changed, 33 insertions(+), 2 deletions(-)diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt index 2b584ca..d167562 100644 --- a/Documentation/devicetree/bindings/mmc/mmci.txt +++ b/Documentation/devicetree/bindings/mmc/mmci.txt@@ -9,7 +9,38 @@ by mmc.txt and the properties used by the mmci driver. Required properties: - compatible : contains "arm,pl18x", "arm,primecell". - arm,primecell-periphid : contains the PrimeCell Peripheral ID.
This should not be required. This is only for if the peripheral ID is wrong in the h/w.
+- vmmc-supply : phandle to the regulator device tree node.
You cannot add new required properties as that breaks the ABI. The exception is if you *know* it is okay to break all users of this binding.
Optional properties: -- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable -- mmc-cap-sd-highspeed : indicates whether SD is high speed capable +- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable. +- mmc-cap-sd-highspeed : indicates whether SD is high speed capable. +- vqmmc-supply : phandle to the regulator device tree node.
Is this a standard property? If not, explain what vmmc and vgmmc are for and what the difference is.
+
+Example:
+
+sdi0_per1 at 80126000 {
+ compatible = "arm,pl18x", "arm,primecell";
+ arm,primecell-periphid = <0x10480180>;Drop this from the example.
+ reg = <0x80126000 0x1000>; + interrupts = <0 60 IRQ_TYPE_LEVEL_HIGH>; + + dmas = <&dma 29 0 0x2>, /* Logical - DevToMem */ + <&dma 29 0 0x0>; /* Logical - MemToDev */ + dma-names = "rx", "tx"; + + clocks = <&prcc_kclk 1 5>, <&prcc_pclk 1 5>; + clock-names = "sdi", "apb_pclk"; + + max-frequency = <100000000>; + bus-width = <4>; + mmc-cap-sd-highspeed; + mmc-cap-mmc-highspeed; + cd-gpios = <&gpio2 31 0x4>; // 95 + + vmmc-supply = <&ab8500_ldo_aux3_reg>; + vqmmc-supply = <&vmmci>; + + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&sdi0_default_mode>; + pinctrl-1 = <&sdi0_sleep_mode>; +}; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html