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authorTvrtko Ursulin <tvrtko.ursulin@intel.com>2022-10-03 17:04:02 +0100
committerTvrtko Ursulin <tvrtko.ursulin@intel.com>2022-10-03 17:04:02 +0100
commit97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3 (patch)
treec4f1a18b38d655b7806a72515992bd9aae14ef53 /drivers/gpu/drm/msm/msm_io_utils.c
parent6fa964c045a6bc3321a9186e87bfbcfd1059b0f1 (diff)
parent7860d720a84c74b2761c6b7995392a798ab0a3cb (diff)
Merge drm/drm-next into drm-intel-gt-next
Daniele needs 84d4333c1e28 ("misc/mei: Add NULL check to component match callback functions") in order to merge the DG2 HuC patches. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_io_utils.c')
-rw-r--r--drivers/gpu/drm/msm/msm_io_utils.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_io_utils.c b/drivers/gpu/drm/msm/msm_io_utils.c
index 7b504617833a..d02cd29ce829 100644
--- a/drivers/gpu/drm/msm/msm_io_utils.c
+++ b/drivers/gpu/drm/msm/msm_io_utils.c
@@ -5,6 +5,8 @@
* Author: Rob Clark <robdclark@gmail.com>
*/
+#include <linux/interconnect.h>
+
#include "msm_drv.h"
/*
@@ -124,3 +126,23 @@ void msm_hrtimer_work_init(struct msm_hrtimer_work *work,
work->worker = worker;
kthread_init_work(&work->work, fn);
}
+
+struct icc_path *msm_icc_get(struct device *dev, const char *name)
+{
+ struct device *mdss_dev = dev->parent;
+ struct icc_path *path;
+
+ path = of_icc_get(dev, name);
+ if (path)
+ return path;
+
+ /*
+ * If there are no interconnects attached to the corresponding device
+ * node, of_icc_get() will return NULL.
+ *
+ * If the MDP5/DPU device node doesn't have interconnects, lookup the
+ * path in the parent (MDSS) device.
+ */
+ return of_icc_get(mdss_dev, name);
+
+}