linux-kernel - [PATCH v10 14/33] remoteproc: k3-dsp: Correct Reset logic for devices without lresets

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Message-ID: <20250417182001.3903905-15-b-padhi@ti.com>
Date: Thu, 17 Apr 2025 23:49:42 +0530
From: Beleswar Padhi <b-padhi@...com>
To: <andersson@...nel.org>, <mathieu.poirier@...aro.org>
CC: <afd@...com>, <hnagalla@...com>, <u-kumar1@...com>, <jm@...com>,
        <jan.kiszka@...mens.com>, <christophe.jaillet@...adoo.fr>,
        <jkangas@...hat.com>, <eballetbo@...hat.com>, <b-padhi@...com>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v10 14/33] remoteproc: k3-dsp: Correct Reset logic for devices without lresets

The k3_dsp_rproc_reset() function erroneously asserts the local reset
even for devices which do not support it. Even though it results in a
no-operation, Update the logic to explicitly assert the local reset for
devices that support it and only the global reset for those that do not.

Signed-off-by: Beleswar Padhi <b-padhi@...com>
---
v10: Changelog:
1. Split [v9 12/26] into [v10 14/33] and [v10 15/33] patches. 

Link to v9:
https://lore.kernel.org/all/20250317120622.1746415-13-b-padhi@ti.com/

 drivers/remoteproc/ti_k3_dsp_remoteproc.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
index 476f4e69d2c11..0a8c9e61393d2 100644
--- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
@@ -30,15 +30,13 @@ static int k3_dsp_rproc_reset(struct k3_rproc *kproc)
 	struct device *dev = kproc->dev;
 	int ret;
 
-	ret = reset_control_assert(kproc->reset);
-	if (ret) {
-		dev_err(dev, "local-reset assert failed (%pe)\n", ERR_PTR(ret));
+	if (kproc->data->uses_lreset) {
+		ret = reset_control_assert(kproc->reset);
+		if (ret)
+			dev_err(dev, "local-reset assert failed (%pe)\n", ERR_PTR(ret));
 		return ret;
 	}
 
-	if (kproc->data->uses_lreset)
-		return ret;
-
 	ret = kproc->ti_sci->ops.dev_ops.put_device(kproc->ti_sci,
 						    kproc->ti_sci_id);
 	if (ret) {
-- 
2.34.1