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Date: Sun, 2 Sep 2018 13:03:32 +0000 From: Sasha Levin <Alexander.Levin@...rosoft.com> To: "stable@...r.kernel.org" <stable@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> CC: Philipp Zabel <p.zabel@...gutronix.de>, Sasha Levin <Alexander.Levin@...rosoft.com> Subject: [PATCH AUTOSEL 4.18 027/131] gpu: ipu-v3: default to id 0 on missing OF alias From: Philipp Zabel <p.zabel@...gutronix.de> [ Upstream commit 2d87e6c1b99c402360fdfe19ce4f579ab2f96adf ] This is better than storing -ENODEV in the id number. This fixes SoCs with only one IPU that don't specify an IPU alias in the device tree. Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de> Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com> --- drivers/gpu/ipu-v3/ipu-common.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c index 48685cddbad1..c73bd003f845 100644 --- a/drivers/gpu/ipu-v3/ipu-common.c +++ b/drivers/gpu/ipu-v3/ipu-common.c @@ -1401,6 +1401,8 @@ static int ipu_probe(struct platform_device *pdev) return -ENODEV; ipu->id = of_alias_get_id(np, "ipu"); + if (ipu->id < 0) + ipu->id = 0; if (of_device_is_compatible(np, "fsl,imx6qp-ipu") && IS_ENABLED(CONFIG_DRM)) { -- 2.17.1
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