From: Cristian Marussi <cristian.marussi@arm.com>
Date: Mon, 28 Oct 2024 12:01:48 +0000 (+0000)
Subject: firmware: arm_scmi: Use max_msg and max_msg_size devicetree properties
X-Git-Tag: v6.13-rc1~139^2~7^2~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c091de2d383a079bc996b8ebbc1d193732fa4897;p=thirdparty%2Fkernel%2Flinux.git

firmware: arm_scmi: Use max_msg and max_msg_size devicetree properties

Override the default built-in max_msg and max_msg_size transport properties
when the corresponding properties were found to be described in the
devicetree.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Message-Id: <20241028120151.1301177-5-cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 7d5f0da975c77..ab9b055293398 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -3054,8 +3054,20 @@ static const struct scmi_desc *scmi_transport_setup(struct device *dev)
 	if (ret && ret != -EINVAL)
 		dev_err(dev, "Malformed arm,max-rx-timeout-ms DT property.\n");
 
-	dev_info(dev, "SCMI max-rx-timeout: %dms\n",
-		 trans->desc->max_rx_timeout_ms);
+	ret = of_property_read_u32(dev->of_node, "arm,max-msg-size",
+				   &trans->desc->max_msg_size);
+	if (ret && ret != -EINVAL)
+		dev_err(dev, "Malformed arm,max-msg-size DT property.\n");
+
+	ret = of_property_read_u32(dev->of_node, "arm,max-msg",
+				   &trans->desc->max_msg);
+	if (ret && ret != -EINVAL)
+		dev_err(dev, "Malformed arm,max-msg DT property.\n");
+
+	dev_info(dev,
+		 "SCMI max-rx-timeout: %dms / max-msg-size: %dbytes / max-msg: %d\n",
+		 trans->desc->max_rx_timeout_ms, trans->desc->max_msg_size,
+		 trans->desc->max_msg);
 
 	return trans->desc;
 }