linux-kernel - [PATCH] drm/msm/mdp5: Use drm_device for creating gem address space

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Date:   Mon,  1 Jul 2019 10:39:07 -0700
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     robdclark@...il.com, sean@...rly.run, airlied@...ux.ie,
        daniel@...ll.ch
Cc:     bjorn.andersson@...aro.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Subject: [PATCH] drm/msm/mdp5: Use drm_device for creating gem address space

Creating the msm gem address space requires a reference to the dev where
the iommu is located.  The driver currently assumes this is the same as
the platform device, which breaks when the iommu is outside of the
platform device.  Use the drm_device instead, which happens to always have
a reference to the proper device.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 4a60f5fca6b0..1347a5223918 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -702,7 +702,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
 	mdelay(16);
 
 	if (config->platform.iommu) {
-		aspace = msm_gem_address_space_create(&pdev->dev,
+		aspace = msm_gem_address_space_create(dev->dev,
 				config->platform.iommu, "mdp5");
 		if (IS_ERR(aspace)) {
 			ret = PTR_ERR(aspace);
-- 
2.17.1