The 'memory-region' property of the komeda display driver DT binding
allows the use of a 'reserved-memory' node for buffer allocations. Add
the requisite of_reserved_mem_device_{init,release} calls to actually
make use of the memory if present.
Signed-off-by: Mihail Atanassov <mihail.atanassov@xxxxxxx>
---
drivers/gpu/drm/arm/display/komeda/komeda_drv.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index cfa5068d9d1e..2ec877ad260a 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -6,6 +6,7 @@
*/
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
#include <linux/component.h>
#include <drm/drm_of.h>
@@ -32,6 +33,7 @@ static void komeda_unbind(struct device *dev)
return;
komeda_kms_detach(mdrv->kms);
+of_reserved_mem_device_release(dev);
komeda_dev_destroy(mdrv->mdev);
dev_set_drvdata(dev, NULL);
@@ -53,6 +55,11 @@ static int komeda_bind(struct device *dev)
goto free_mdrv;
}
+/* Get the optional framebuffer memory resource */
+err = of_reserved_mem_device_init(dev);
+if (err && err != -ENODEV)
+goto destroy_mdev;
+
mdrv->kms = komeda_kms_attach(mdrv->mdev);
if (IS_ERR(mdrv->kms)) {
err = PTR_ERR(mdrv->kms);
--
2.22.0
IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
