On Mon, Aug 05, 2019 at 05:56:25PM +0800, Mihail Atanassov wrote:
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.
Changes since v1:
- Move handling inside komeda_parse_dt
Signed-off-by: Mihail Atanassov mihail.atanassov@arm.com
drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c index 1ff7f4b2c620..0142ee991957 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c @@ -8,6 +8,7 @@ #include <linux/iommu.h> #include <linux/of_device.h> #include <linux/of_graph.h> +#include <linux/of_reserved_mem.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> #ifdef CONFIG_DEBUG_FS @@ -146,6 +147,12 @@ static int komeda_parse_dt(struct device *dev, struct komeda_dev *mdev) return mdev->irq; }
- /* Get the optional framebuffer memory resource */
- ret = of_reserved_mem_device_init(dev);
- if (ret && ret != -ENODEV)
return ret;- ret = 0;
- for_each_available_child_of_node(np, child) { if (of_node_cmp(child->name, "pipeline") == 0) { ret = komeda_parse_pipe_dt(mdev, child);
@@ -292,6 +299,8 @@ void komeda_dev_destroy(struct komeda_dev *mdev)
mdev->n_pipelines = 0;
- of_reserved_mem_device_release(dev);
- if (funcs && funcs->cleanup) funcs->cleanup(mdev);
-- 2.22.0
Thank you.
Reviewed-by: James Qian Wang (Arm Technology China) james.qian.wang@arm.com