linux-kernel - [PATCH v2 2/6] mtd: nand: gpmi: document the clocks and clock-names in DT property

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Date:	Fri, 10 Jun 2016 12:01:30 -0500
From:	Han Xu <han.xu@....com>
To:	<han.xu@....com>, <boris.brezillon@...e-electrons.com>,
	<richard@....at>, <dwmw2@...radead.org>,
	<computersforpeace@...il.com>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>
CC:	<linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/6] mtd: nand: gpmi: document the clocks and clock-names in DT property

add the clocks and clock-names in DT property, gpmi-io clock is
mandatory for all platforms, but some platforms, such as i.MX6Q may
need more extra clocks for submodules. More details please refer to the
SoC reference manual.

Signed-off-by: Han Xu <han.xu@....com>
---
 Documentation/devicetree/bindings/mtd/gpmi-nand.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
index d02acaf..c8d0e2f 100644
--- a/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmi-nand.txt
@@ -13,6 +13,13 @@ Required properties:
     and GPMI DMA channel ID.
     Refer to dma.txt and fsl-mxs-dma.txt for details.
   - dma-names: Must be "rx-tx".
+  - clocks : The clocks needed by the gpmi controller. This field varies
+    depends on the SoC design, "gpmi-io" is mandatory but some platforms may
+    need several extra clocks, such as i.MX6Q, it requires "gpmi_apb,
+    gpmi_bch, gpmi_bch_apb and per1_bch" for all submodules. Please refer to
+    the HW design manual.
+  - clock-names : the name of the clocks, please refer to the HW design
+    manual.
 
 Optional properties:
   - nand-on-flash-bbt: boolean to enable on flash bbt option if not
@@ -51,6 +58,8 @@ gpmi-nand@...0c000 {
 	interrupt-names = "bch";
 	dmas = <&dma_apbh 4>;
 	dma-names = "rx-tx";
+	clocks = <&clks 50>,;
+	clock-names = "gpmi_io";
 
 	partition@0 {
 	...
-- 
1.9.1