linux-kernel - [PATCH v3 3/5] remoteproc: imx_rproc: Introduce prepare ops for imx_rproc

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Message-Id: <20251122-imx95-rproc-2025-11-20-v3-3-9ae6ee619a78@nxp.com>
Date: Sat, 22 Nov 2025 08:58:18 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Mathieu Poirier <mathieu.poirier@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Frank Li <Frank.Li@....com>, 
 Daniel Baluta <daniel.baluta@....com>
Cc: linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH v3 3/5] remoteproc: imx_rproc: Introduce prepare ops for
 imx_rproc_dcfg

From: Peng Fan <peng.fan@....com>

Allow each platform to provide its own prepare operations, preparing
for i.MX95 LMM and CPU ops support.

No functional changes.

Reviewed-by: Daniel Baluta <daniel.baluta@....com>
Reviewed-by: Frank Li <Frank.Li@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/remoteproc/imx_rproc.c | 5 ++++-
 drivers/remoteproc/imx_rproc.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 82cb8c7866ccb79061c46068d2039f38feebbb3c..232eb91e0b5dc2432131b1c140d6688b073fea1d 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -532,7 +532,10 @@ static int imx_rproc_prepare(struct rproc *rproc)
 		rproc_add_carveout(rproc, mem);
 	}
 
-	return  0;
+	if (priv->ops && priv->ops->prepare)
+		return priv->ops->prepare(rproc);
+
+	return 0;
 }
 
 static int imx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
diff --git a/drivers/remoteproc/imx_rproc.h b/drivers/remoteproc/imx_rproc.h
index 1b2d9f4d6d19dcdc215be97f7e2ab3488281916a..37417568a0ade2ae4d6a4e3d0f139ea52b185254 100644
--- a/drivers/remoteproc/imx_rproc.h
+++ b/drivers/remoteproc/imx_rproc.h
@@ -24,6 +24,7 @@ struct imx_rproc_plat_ops {
 	int (*stop)(struct rproc *rproc);
 	int (*detach)(struct rproc *rproc);
 	int (*detect_mode)(struct rproc *rproc);
+	int (*prepare)(struct rproc *rproc);
 };
 
 struct imx_rproc_dcfg {

-- 
2.37.1