From: Masahiro Yamada Date: Fri, 22 Jun 2018 16:06:36 +0000 (+0900) Subject: dt-binding: mtd: denali_dt: document clock property X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d91e8a3eec69a9767a6efa17543a12e1bfcbe099;p=linux.git dt-binding: mtd: denali_dt: document clock property Commit 30f9f2fb7ba0 ("mtd: denali: add a DT driver") supported the clock enablement, but did not document it in the DT binding. In addition to the existing clock, this commit adds more clocks based on the IP specification. According to the Denali User's Guide, this IP needs three clocks: - clk: controller core clock - clk_x: bus interface clock - ecc_clk: clock at which ECC circuitry is run The driver should accept the current single clock for the backward compatibility, but the DT binding should represent the real hardware, and future platforms must follow this. Signed-off-by: Masahiro Yamada Reviewed-by: Boris Brezillon Reviewed-by: Rob Herring Signed-off-by: Miquel Raynal --- diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt index 0ee8edb60efc6..f33da87827410 100644 --- a/Documentation/devicetree/bindings/mtd/denali-nand.txt +++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt @@ -8,6 +8,9 @@ Required properties: - reg : should contain registers location and length for data and reg. - reg-names: Should contain the reg names "nand_data" and "denali_reg" - interrupts : The interrupt number. + - clocks: should contain phandle of the controller core clock, the bus + interface clock, and the ECC circuit clock. + - clock-names: should contain "nand", "nand_x", "ecc" Optional properties: - nand-ecc-step-size: see nand.txt for details. If present, the value must be @@ -31,5 +34,7 @@ nand: nand@ff900000 { compatible = "altr,socfpga-denali-nand"; reg = <0xff900000 0x20>, <0xffb80000 0x1000>; reg-names = "nand_data", "denali_reg"; + clocks = <&nand_clk>, <&nand_x_clk>, <&nand_ecc_clk>; + clock-names = "nand", "nand_x", "ecc"; interrupts = <0 144 4>; };