[PATCH v4 1/4] drm/xe: Use devm_ioremap_wc for VRAM mapping and drop manual unmap

[Piórkowski, Piotr]

From: Piotr Piórkowski <piotr.piorkowski at intel.com>

Let's replace the manual call to ioremap_wc function with devm_ioremap_wc
function, ensuring that VRAM mappings are automatically released when
the driver is detached.
Since devm_ioremap_wc registers the mapping with the device's managed
resources, the explicit iounmap call in vram_fini is no longer needed,
so let's remove it.

Signed-off-by: Piotr Piórkowski <piotr.piorkowski at intel.com>
Suggested-by: Matthew Auld <matthew.auld at intel.com>
---
 drivers/gpu/drm/xe/xe_vram.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_vram.c b/drivers/gpu/drm/xe/xe_vram.c
index e421a74fb87c..3a4c84e9efc6 100644
--- a/drivers/gpu/drm/xe/xe_vram.c
+++ b/drivers/gpu/drm/xe/xe_vram.c
@@ -156,7 +156,8 @@ static int determine_lmem_bar_size(struct xe_device *xe)
 	xe->mem.vram.dpa_base = 0;
 
 	/* set up a map to the total memory area. */
-	xe->mem.vram.mapping = ioremap_wc(xe->mem.vram.io_start, xe->mem.vram.io_size);
+	xe->mem.vram.mapping = devm_ioremap_wc(&pdev->dev, xe->mem.vram.io_start,
+					       xe->mem.vram.io_size);
 
 	return 0;
 }
@@ -278,9 +279,6 @@ static void vram_fini(void *arg)
 	struct xe_tile *tile;
 	int id;
 
-	if (xe->mem.vram.mapping)
-		iounmap(xe->mem.vram.mapping);
-
 	xe->mem.vram.mapping = NULL;
 
 	for_each_tile(tile, xe, id)
-- 
2.34.1