linux-kernel - [PATCH 4.5 66/88] ARM: dts: apq8064: add ahci ports-implemented mask

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Date:	Mon,  9 May 2016 09:21:55 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Andy Gross <andy.gross@...aro.org>, Tejun Heo <tj@...nel.org>
Subject: [PATCH 4.5 66/88] ARM: dts: apq8064: add ahci ports-implemented mask

4.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

commit bb4add2ce991e4ec891b5a0287fd1ab77b631979 upstream.

This patch adds new ports-implemented mask, which is required to get
achi working on the mainline. Without this patch value read from
PORTS_IMPL register which is zero would not enable any ports for
software to use.

Fixes: 566d1827df2e ("libata: disable forced PORTS_IMPL for >= AHCI 1.3")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Reviewed-by: Andy Gross <andy.gross@...aro.org>
Signed-off-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/qcom-apq8064.dtsi |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -665,7 +665,7 @@
 		};
 
 		sata0: sata@...00000 {
-			compatible		= "generic-ahci";
+			compatible		= "qcom,apq8064-ahci", "generic-ahci";
 			status			= "disabled";
 			reg			= <0x29000000 0x180>;
 			interrupts		= <GIC_SPI 209 IRQ_TYPE_NONE>;
@@ -687,6 +687,7 @@
 
 			phys			= <&sata_phy0>;
 			phy-names		= "sata-phy";
+			ports-implemented	= <0x1>;
 		};
 
 		/* Temporary fixed regulator */