Re: [PATCH v2 1/2] dt-bindings: mmc: add DT bindings for Milbeaut SD controller
From: Rob Herring <robh@kernel.org>
Date: 2019-07-08 21:26:36
Also in:
linux-mmc, lkml
On Thu, May 30, 2019 at 06:22:11PM +0900, Takao Orito wrote:
quoted hunk ↗ jump to hunk
Add the device-tree binding documentation for Milbeaut SDHCI driver. Signed-off-by: Takao Orito <orito.takao@socionext.com> --- .../devicetree/bindings/mmc/sdhci-milbeaut.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txtdiff --git a/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt b/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt new file mode 100644 index 0000000..6063116 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt@@ -0,0 +1,32 @@ +* SOCIONEXT Milbeaut SDHCI controller + +This file documents differences between the core properties in mmc.txt +and the properties used by the sdhci_milbeaut driver. + +Required properties: +- compatible: "socionext,milbeaut-m10v-sdhci-3.0" +- clocks: Must contain an entry for each entry in clock-names. It is a + list of phandles and clock-specifier pairs. + See ../clocks/clock-bindings.txt for details. +- clock-names: Should contain the following two entries: + "iface" - clock used for sdhci interface + "core" - core clock for sdhci controller +- vmmc-supply: a phandle of a fixed GPIO regulator
Being a fixed GPIO regulator is board specific and outside the scope of the binding. Otherwise, Reviewed-by: Rob Herring <robh@kernel.org>
+
+Optional properties:
+- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
+ requires the CMD_DAT_DELAY control to be enabled.
+
+Example:
+ sdhci3: mmc@1b010000 {
+ compatible = "socionext,milbeaut-m10v-sdhci-3.0";
+ reg = <0x1b010000 0x10000>;
+ interrupts = <0 265 0x4>;
+ voltage-ranges = <3300 3300>;
+ bus-width = <4>;
+ clocks = <&clk 7>, <&ahb_clk>;
+ clock-names = "core", "iface";
+ cap-sdio-irq;
+ vmmc-supply = <&vcc_sdhci3>;
+ fujitsu,cmd-dat-delay-select;
+ };
--
1.9.1