linux-kernel - [PATCH 2/2] ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1

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Message-ID: <1449493765-5111-3-git-send-email-jszhang@marvell.com>
Date:	Mon, 7 Dec 2015 21:09:25 +0800
From:	Jisheng Zhang <jszhang@...vell.com>
To:	<sebastian.hesselbarth@...il.com>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux@....linux.org.uk>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Jisheng Zhang <jszhang@...vell.com>
Subject: [PATCH 2/2] ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1

We removed CLK_IGNORE_UNUSED from CLKID_SDIO's flag, so the sdhci0 and
sdhci1 don't work. We fix this by adding the optional 2nd clock for
BG2Q's sdhci0 and sdhci1. This patch brings another benefit: the 2nd
clock can be disabled during runtime pm, so saves power a bit.

Signed-off-by: Jisheng Zhang <jszhang@...vell.com>
---
 arch/arm/boot/dts/berlin2q.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 5b10129..fb1da99 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -118,7 +118,8 @@
 		sdhci0: sdhci@...000 {
 			compatible = "mrvl,pxav3-mmc";
 			reg = <0xab0000 0x200>;
-			clocks = <&chip_clk CLKID_SDIO1XIN>;
+			clocks = <&chip_clk CLKID_SDIO1XIN>, <&chip_clk CLKID_SDIO>;
+			clock-names = "io", "core";
 			interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 		};
@@ -126,7 +127,8 @@
 		sdhci1: sdhci@...800 {
 			compatible = "mrvl,pxav3-mmc";
 			reg = <0xab0800 0x200>;
-			clocks = <&chip_clk CLKID_SDIO1XIN>;
+			clocks = <&chip_clk CLKID_SDIO1XIN>, <&chip_clk CLKID_SDIO>;
+			clock-names = "io", "core";
 			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 			status = "disabled";
 		};
-- 
2.6.2

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