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Commit 45d56d58 authored by Tingwei Zhang's avatar Tingwei Zhang
Browse files

soc: qcom: reserve memory in memory dump probe 



Initialize reserved memory with of_reserved_mem_device_init_by_idx().

Change-Id: I5c3867ec685a8b30eb8457bb461cda937e48f8c0
Signed-off-by: default avatarTingwei Zhang <tingwei@codeaurora.org>
parent 24a21204

drivers/soc/qcom/memory_dump_v2.c

+24 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/of_device.h>

#include <linux/dma-mapping.h>

#include <linux/module.h>

#include <linux/of_reserved_mem.h>



#define MSM_DUMP_TABLE_VERSION		MSM_DUMP_MAKE_VERSION(2, 0)
@@ -225,6 +226,26 @@ static int __init init_memory_dump(void) 
}

early_initcall(init_memory_dump);



static int mem_dump_reserve_mem(struct device *dev)

{

	struct device_node *mem_node;

	int ret;



	mem_node = of_parse_phandle(dev->of_node, "memory-region", 0);

	if (mem_node) {

		ret = of_reserved_mem_device_init_by_idx(dev,

				dev->of_node, 0);

		of_node_put(dev->of_node);

		if (ret) {

			dev_err(dev,

				"Failed to initialize reserved mem, ret %d\n",

				ret);

			return ret;

		}

	}

	return 0;

}



static int mem_dump_probe(struct platform_device *pdev)

{

	struct device_node *child_node;
@@ -236,6 +257,9 @@ static int mem_dump_probe(struct platform_device *pdev) 
	int ret;

	u32 size, id;



	if (mem_dump_reserve_mem(&pdev->dev) != 0)

		return -ENOMEM;



	for_each_available_child_of_node(node, child_node) {

		ret = of_property_read_u32(child_node, "qcom,dump-size", &size);

		if (ret) {