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Subject[PATCH v3 1/3] char drivers: ramoops dump_oops platform data
Date
The platform driver currently allows setting the mem_size and mem_address.
Since dump_oops is also a module parameter it would be more consistent
if it could be set through platform data as well.

Change-Id: I27e541a51c9722047c4163bf408e778caa77ecc9
Signed-off-by: Sergiu Iordache <sergiu@chromium.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
---
drivers/char/ramoops.c | 5 ++++-
include/linux/ramoops.h | 1 +
2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index c9e1028..5349d94 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -55,6 +55,7 @@ static struct ramoops_context {
void *virt_addr;
phys_addr_t phys_addr;
unsigned long size;
+ int dump_oops;
int count;
int max_count;
} oops_cxt;
@@ -80,7 +81,7 @@ static void ramoops_do_dump(struct kmsg_dumper *dumper,
return;

/* Only dump oopses if dump_oops is set */
- if (reason == KMSG_DUMP_OOPS && !dump_oops)
+ if (reason == KMSG_DUMP_OOPS && !cxt->dump_oops)
return;

buf = cxt->virt_addr + (cxt->count * RECORD_SIZE);
@@ -128,6 +129,7 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->count = 0;
cxt->size = pdata->mem_size;
cxt->phys_addr = pdata->mem_address;
+ cxt->dump_oops = pdata->dump_oops;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
pr_err("request mem region failed\n");
@@ -194,6 +196,7 @@ static int __init ramoops_init(void)
return -ENOMEM;
dummy_data->mem_size = mem_size;
dummy_data->mem_address = mem_address;
+ dummy_data->dump_oops = dump_oops;
dummy = platform_create_bundle(&ramoops_driver, ramoops_probe,
NULL, 0, dummy_data,
sizeof(struct ramoops_platform_data));
diff --git a/include/linux/ramoops.h b/include/linux/ramoops.h
index 0ae68a2..7105c4b 100644
--- a/include/linux/ramoops.h
+++ b/include/linux/ramoops.h
@@ -10,6 +10,7 @@
struct ramoops_platform_data {
unsigned long mem_size;
unsigned long mem_address;
+ int dump_oops;
};

#endif
--
1.7.3.1


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