2023-10-14 17:36:38 +00:00
|
|
|
From d93936f175bd914067df8f63f5fbe6e3b77bb4d2 Mon Sep 17 00:00:00 2001
|
|
|
|
|
From: Mantas Pucka <mantas@8devices.com>
|
|
|
|
|
Date: Tue, 23 May 2023 14:46:28 +0300
|
|
|
|
|
Subject: [PATCH 11/19] soc: qcom: fix smp2p ack on ipq6018
|
|
|
|
|
|
|
|
|
|
IPQ6018 seem to need different ack mechanism for smp2p messaging. This
|
|
|
|
|
fixes q6v5_wcss remoteproc firmware reloading. Without this first load
|
|
|
|
|
is OK, but subsequent loads would hang and fail to complete.
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Mantas Pucka <mantas@8devices.com>
|
|
|
|
|
---
|
|
|
|
|
arch/arm64/boot/dts/qcom/ipq6018.dtsi | 1 +
|
|
|
|
|
drivers/soc/qcom/smp2p.c | 6 +++++-
|
|
|
|
|
2 files changed, 6 insertions(+), 1 deletion(-)
|
|
|
|
|
|
|
|
|
|
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
|
|
|
|
|
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
|
2024-07-27 12:18:53 +00:00
|
|
|
@@ -1157,6 +1157,7 @@
|
2023-10-14 17:36:38 +00:00
|
|
|
|
|
|
|
|
wcss_smp2p_out: master-kernel {
|
|
|
|
|
qcom,entry-name = "master-kernel";
|
|
|
|
|
+ qcom,smp2p-feature-ssr-ack;
|
|
|
|
|
#qcom,smem-state-cells = <1>;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
--- a/drivers/soc/qcom/smp2p.c
|
|
|
|
|
+++ b/drivers/soc/qcom/smp2p.c
|
|
|
|
|
@@ -158,6 +158,8 @@ struct qcom_smp2p {
|
|
|
|
|
|
|
|
|
|
struct list_head inbound;
|
|
|
|
|
struct list_head outbound;
|
|
|
|
|
+
|
|
|
|
|
+ bool need_ssr_ack;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void qcom_smp2p_kick(struct qcom_smp2p *smp2p)
|
|
|
|
|
@@ -306,7 +308,7 @@ static irqreturn_t qcom_smp2p_intr(int i
|
|
|
|
|
ack_restart = qcom_smp2p_check_ssr(smp2p);
|
|
|
|
|
qcom_smp2p_notify_in(smp2p);
|
|
|
|
|
|
|
|
|
|
- if (ack_restart)
|
|
|
|
|
+ if (ack_restart || smp2p->need_ssr_ack)
|
|
|
|
|
qcom_smp2p_do_ssr_ack(smp2p);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
@@ -427,6 +429,7 @@ static int qcom_smp2p_outbound_entry(str
|
|
|
|
|
|
|
|
|
|
/* Make the logical entry reference the physical value */
|
|
|
|
|
entry->value = &out->entries[out->valid_entries].value;
|
|
|
|
|
+ smp2p->need_ssr_ack = of_property_read_bool(node, "qcom,smp2p-feature-ssr-ack");
|
|
|
|
|
|
|
|
|
|
out->valid_entries++;
|
|
|
|
|
|
