linux-kernel - [PATCH] arm: dts: socfpga: denali needs nand_x

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Date:   Tue, 19 Jun 2018 14:07:19 +0200
From:   Richard Weinberger <richard@....at>
To:     devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        dinguyen@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        marek.vasut@...il.com, computersforpeace@...il.com,
        dwmw2@...radead.org, miquel.raynal@...tlin.com,
        boris.brezillon@...tlin.com, yamada.masahiro@...ionext.com,
        Richard Weinberger <richard@....at>
Subject: [PATCH] arm: dts: socfpga: denali needs nand_x_clk too

The denali NAND flash controller needs at least two clocks to operate,
nand_clk and nand_x_clk.
Since 1bb88666775e ("mtd: nand: denali: handle timing parameters by
setup_data_interface()") nand_x_clk is used to derive timing settings.

Signed-off-by: Richard Weinberger <richard@....at>
---
Strictly speaking denali needs a ecc_clk too, but AFAIK such a clock
is not present on this SoC.
But my SoCFPGA knowledge is very limited.

Thanks,
//richard
---
 arch/arm/boot/dts/socfpga.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 486d4e7433ed..562f7b375bbd 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -754,7 +754,8 @@
 			reg-names = "nand_data", "denali_reg";
 			interrupts = <0x0 0x90 0x4>;
 			dma-mask = <0xffffffff>;
-			clocks = <&nand_clk>;
+			clocks = <&nand_clk>, <&nand_x_clk>;
+			clock-names = "nand", "nand_x";
 			status = "disabled";
 		};
 
-- 
2.17.1