Implement support for the `timeout-ms` device tree property, allowing
platforms to adjust the userspace response timeout as needed.
If `timeout-ms` is not specified, the default response timeout remains
500 ms. This ensures compatibility while providing flexibility for
platforms that require longer timeouts due to BMC or application load.
Signed-off-by: Potin Lai <potin.lai.pt@xxxxxxxxx>
---
drivers/char/ipmi/ssif_bmc.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/char/ipmi/ssif_bmc.c b/drivers/char/ipmi/ssif_bmc.c
index 310f17dd9511..8f0fbc941936 100644
--- a/drivers/char/ipmi/ssif_bmc.c
+++ b/drivers/char/ipmi/ssif_bmc.c
@@ -87,6 +87,7 @@ struct ssif_bmc_ctx {
/* Timeout waiting for response */
struct timer_list response_timer;
bool response_timer_inited;
+ u32 response_timeout;
/* Flag to identify a Multi-part Read Transaction */
bool is_singlepart_read;
u8 nbytes_processed;
@@ -331,7 +332,8 @@ static void handle_request(struct ssif_bmc_ctx *ssif_bmc)
timer_setup(&ssif_bmc->response_timer, response_timeout, 0);
ssif_bmc->response_timer_inited = true;
}
- mod_timer(&ssif_bmc->response_timer, jiffies + msecs_to_jiffies(RESPONSE_TIMEOUT));
+ mod_timer(&ssif_bmc->response_timer, jiffies +
+ msecs_to_jiffies(ssif_bmc->response_timeout));
}
static void calculate_response_part_pec(struct ssif_part_buffer *part)
@@ -809,6 +811,10 @@ static int ssif_bmc_probe(struct i2c_client *client)
if (!ssif_bmc)
return -ENOMEM;
+ if (of_property_read_u32(client->dev.of_node, "timeout-ms",
+ &ssif_bmc->response_timeout))
+ ssif_bmc->response_timeout = RESPONSE_TIMEOUT;
+
spin_lock_init(&ssif_bmc->lock);
init_waitqueue_head(&ssif_bmc->wait_queue);
--
2.31.1
