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From: Simon Horman <horms+renesas@verge.net.au>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Magnus Damm <magnus.damm@gmail.com>,
	linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	devicetree@vger.kernel.org,
	Simon Horman <horms+renesas@verge.net.au>
Subject: [PATCH v3 1/4] PCI: rcar-gen2: add gen2 fallback compatibility string
Date: Mon, 18 Jan 2016 14:09:42 +0900	[thread overview]
Message-ID: <1453093785-21067-2-git-send-email-horms+renesas@verge.net.au> (raw)
In-Reply-To: <1453093785-21067-1-git-send-email-horms+renesas@verge.net.au>

Add fallback compatibility string for R-Car Gen 2 family.
This is in keeping with the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>

---
v2
* Include "rcar-" in new compatibility string
---
 Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt | 11 +++++++++--
 drivers/pci/host/pci-rcar-gen2.c                        |  1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
index 7fab84b33531..7f3d383e605f 100644
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
@@ -8,7 +8,14 @@ OHCI and EHCI controllers.
 Required properties:
 - compatible: "renesas,pci-r8a7790" for the R8A7790 SoC;
 	      "renesas,pci-r8a7791" for the R8A7791 SoC;
-	      "renesas,pci-r8a7794" for the R8A7794 SoC.
+	      "renesas,pci-r8a7794" for the R8A7794 SoC;
+	      "renesas,pci-rcar-gen2" for a generic R-Car Gen2 compatible device.
+
+
+	      When compatible with the generic version, nodes must list the
+	      SoC-specific version corresponding to the platform first
+	      followed by the generic version.
+
 - reg:	A list of physical regions to access the device: the first is
 	the operational registers for the OHCI/EHCI controllers and the
 	second is for the bridge configuration and control registers.
@@ -27,7 +34,7 @@ Required properties:
 Example SoC configuration:
 
 	pci0: pci@ee090000  {
-		compatible = "renesas,pci-r8a7790";
+		compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2";
 		clocks = <&mstp7_clks R8A7790_CLK_EHCI>;
 		reg = <0x0 0xee090000 0x0 0xc00>,
 		      <0x0 0xee080000 0x0 0x1100>;
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c
index c4f64bfee551..5683e7068b29 100644
--- a/drivers/pci/host/pci-rcar-gen2.c
+++ b/drivers/pci/host/pci-rcar-gen2.c
@@ -360,6 +360,7 @@ static int rcar_pci_probe(struct platform_device *pdev)
 }
 
 static struct of_device_id rcar_pci_of_match[] = {
+	{ .compatible = "renesas,pci-rcar-gen2", },
 	{ .compatible = "renesas,pci-r8a7790", },
 	{ .compatible = "renesas,pci-r8a7791", },
 	{ .compatible = "renesas,pci-r8a7794", },
-- 
2.1.4

  reply	other threads:[~2016-01-18  5:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-18  5:09 [PATCH v3 0/4] PCI: rcar, rcar-gen2: More Gen2 compatibility strings Simon Horman
2016-01-18  5:09 ` Simon Horman [this message]
2016-01-18  5:09 ` [PATCH v3 2/4] PCI: rcar-gen2: add device tree support for r8a7793 Simon Horman
2016-01-18  5:09 ` [PATCH v3 3/4] PCI: rcar: add gen2 fallback compatibility string Simon Horman
2016-01-18  5:09 ` [PATCH v3 4/4] PCI: rcar: add device tree support for r8a7793 Simon Horman
2016-02-05 20:21 ` [PATCH v3 0/4] PCI: rcar, rcar-gen2: More Gen2 compatibility strings Bjorn Helgaas
2016-02-10 17:22   ` Simon Horman

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