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soc: qcom: reserve memory in memory dump probe

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Initialize reserved memory with of_reserved_mem_device_init_by_idx().

Change-Id: I5c3867ec685a8b30eb8457bb461cda937e48f8c0
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>
This commit is contained in:
Tingwei Zhang 2019-12-16 16:05:17 +08:00
commit 45d56d58ff
1 changed files with 24 additions and 0 deletions
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24
drivers/soc/qcom/memory_dump_v2.c
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@ -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 @@ err0:
}
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) {