Re: [PATCH 2/8] mmc: sdhci-st: STMicroelectronics SDHCI binding documentation.
From: Lee Jones
Date: Thu May 22 2014 - 12:06:55 EST
> This patch adds the device tree binding documentation for ST
> SDHCI driver. It contains the differences between the core properties
> in mmc.txt and the properties used by the sdhci-st driver.
>
> Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx>
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@xxxxxx>
> ---
> Documentation/devicetree/bindings/mmc/sdhci-st.txt | 26 ++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-st.txt
>
> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-st.txt b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
> new file mode 100644
> index 0000000..ae3dae0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/sdhci-st.txt
> @@ -0,0 +1,26 @@
> +* STMicroelectronics sdhci-st MMC/SD controller
> +
> +This file documents differences between the core properties in mmc.txt
Where is mmc.txt?
> +and the properties used by the sdhci-st driver
> +
> +Required properties:
> +- compatible: "st,sdhci"
> +- clocks: card clock, must be "mmc".
This isn't correct. I think you mean it must be a phandle to the
'mmc' clock. It's also worth referencing the clock DT documentation
here.
> +Optional properties:
> +- reset: to provide a reset to the HC.
What is it; integer, string, phandle, something else?
> +- non-removable: non-removable slot (bindings/mmc/mmc.txt).
This however, _is_ a string, so you need to put it in "'s like you did
with "mmc" above and/or reference the file which documents it.
> +
> +Example:
> +
> +mmc0: sdhci@fe81e000 {
> + compatible = "st,sdhci";
> + status = "disabled";
> + reg = <0xfe81e000 0x1000>;
> + interrupts = <GIC_SPI 127 IRQ_TYPE_NONE>;
> + interrupt-names = "mmcirq";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_mmc0>;
> + clock-names = "mmc";
I don't think you need clock-names if you only have one clock.
> + clocks = <&clk_s_a1_ls 1>;
> +};
Once fixed you can add my Ack for the next submission:
Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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