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Code Issues Releases Wiki Activity

soc: microchip: mpfs: use a consistent completion timeout

Browse source 
Completion timeouts use jiffies, so passing a number directly will
produce inconsistent timeouts depending on config. Define the timeout in
ms and convert it to jiffies instead.

Tested-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
This commit is contained in:
Conor Dooley 2023-03-07 20:22:56 +00:00
parent 5ca631ec75
commit 4f739af193
1 changed files with 5 additions and 1 deletions
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6
drivers/soc/microchip/mpfs-sys-controller.c
View file

@ -11,12 +11,15 @@
#include <linux/slab.h>
#include <linux/kref.h>
#include <linux/module.h>
#include <linux/jiffies.h>
#include <linux/interrupt.h>
#include <linux/of_platform.h>
#include <linux/mailbox_client.h>
#include <linux/platform_device.h>
#include <soc/microchip/mpfs.h>
#define MPFS_SYS_CTRL_TIMEOUT_MS 100
static DEFINE_MUTEX(transaction_lock);
struct mpfs_sys_controller {
@ -28,6 +31,7 @@ struct mpfs_sys_controller {
int mpfs_blocking_transaction(struct mpfs_sys_controller *sys_controller, struct mpfs_mss_msg *msg)
{
unsigned long timeout = msecs_to_jiffies(MPFS_SYS_CTRL_TIMEOUT_MS);
int ret, err;
err = mutex_lock_interruptible(&transaction_lock);
@ -38,7 +42,7 @@ int mpfs_blocking_transaction(struct mpfs_sys_controller *sys_controller, struct
ret = mbox_send_message(sys_controller->chan, msg);
if (ret >= 0) {
if (wait_for_completion_timeout(&sys_controller->c, HZ)) {
if (wait_for_completion_timeout(&sys_controller->c, timeout)) {
ret = 0;
} else {
ret = -ETIMEDOUT;