linux-kernel - [PATCH v8 18/20] remoteproc: k3: Refactor mem

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Message-ID: <20250103101231.1508151-19-b-padhi@ti.com>
Date: Fri, 3 Jan 2025 15:42:29 +0530
From: Beleswar Padhi <b-padhi@...com>
To: <andersson@...nel.org>, <mathieu.poirier@...aro.org>
CC: <afd@...com>, <hnagalla@...com>, <u-kumar1@...com>,
        <p.zabel@...gutronix.de>, <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 v8 18/20] remoteproc: k3: Refactor mem_release() functions into common driver

The k3_dsp_mem_release() and k3_m4_rproc_dev_mem_release() functions
release the reserved memory of the device, which get auto triggered upon
device removal. Refactor these functions into ti_k3_common.c driver as
k3_mem_release() and align DSP and M4 drivers to use this common
function throughout.

Signed-off-by: Beleswar Padhi <b-padhi@...com>
---
 drivers/remoteproc/ti_k3_common.c         | 8 ++++++++
 drivers/remoteproc/ti_k3_common.h         | 1 +
 drivers/remoteproc/ti_k3_dsp_remoteproc.c | 9 +--------
 drivers/remoteproc/ti_k3_m4_remoteproc.c  | 9 +--------
 4 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/drivers/remoteproc/ti_k3_common.c b/drivers/remoteproc/ti_k3_common.c
index c1c6eabb867f..c8766a01dc19 100644
--- a/drivers/remoteproc/ti_k3_common.c
+++ b/drivers/remoteproc/ti_k3_common.c
@@ -496,5 +496,13 @@ int k3_rproc_of_get_memories(struct platform_device *pdev,
 }
 EXPORT_SYMBOL_GPL(k3_rproc_of_get_memories);
 
+void k3_mem_release(void *data)
+{
+	struct device *dev = data;
+
+	of_reserved_mem_device_release(dev);
+}
+EXPORT_SYMBOL_GPL(k3_mem_release);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("TI K3 common Remoteproc code");
diff --git a/drivers/remoteproc/ti_k3_common.h b/drivers/remoteproc/ti_k3_common.h
index 8801914a7c56..31cd202be348 100644
--- a/drivers/remoteproc/ti_k3_common.h
+++ b/drivers/remoteproc/ti_k3_common.h
@@ -107,4 +107,5 @@ void *k3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len,
 			bool *is_iomem);
 int k3_rproc_of_get_memories(struct platform_device *pdev,
 			     struct k3_rproc *kproc);
+void k3_mem_release(void *data);
 #endif /* REMOTEPROC_TI_K3_COMMON_H */
diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
index 476f53249793..1176a6f4c977 100644
--- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c
@@ -66,13 +66,6 @@ static const struct rproc_ops k3_dsp_rproc_ops = {
 	.get_loaded_rsc_table	=	k3_get_loaded_rsc_table,
 };
 
-static void k3_dsp_mem_release(void *data)
-{
-	struct device *dev = data;
-
-	of_reserved_mem_device_release(dev);
-}
-
 static int k3_dsp_reserved_mem_init(struct k3_rproc *kproc)
 {
 	struct device *dev = kproc->dev;
@@ -102,7 +95,7 @@ static int k3_dsp_reserved_mem_init(struct k3_rproc *kproc)
 			ERR_PTR(ret));
 		return ret;
 	}
-	ret = devm_add_action_or_reset(dev, k3_dsp_mem_release, dev);
+	ret = devm_add_action_or_reset(dev, k3_mem_release, dev);
 	if (ret)
 		return ret;
 
diff --git a/drivers/remoteproc/ti_k3_m4_remoteproc.c b/drivers/remoteproc/ti_k3_m4_remoteproc.c
index a077fe2c06aa..6608b13d125b 100644
--- a/drivers/remoteproc/ti_k3_m4_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_m4_remoteproc.c
@@ -21,13 +21,6 @@
 #include "ti_sci_proc.h"
 #include "ti_k3_common.h"
 
-static void k3_m4_rproc_dev_mem_release(void *data)
-{
-	struct device *dev = data;
-
-	of_reserved_mem_device_release(dev);
-}
-
 static int k3_m4_reserved_mem_init(struct k3_rproc *kproc)
 {
 	struct device *dev = kproc->dev;
@@ -56,7 +49,7 @@ static int k3_m4_reserved_mem_init(struct k3_rproc *kproc)
 		dev_err(dev, "device cannot initialize DMA pool (%d)\n", ret);
 		return ret;
 	}
-	ret = devm_add_action_or_reset(dev, k3_m4_rproc_dev_mem_release, dev);
+	ret = devm_add_action_or_reset(dev, k3_mem_release, dev);
 	if (ret)
 		return ret;
 
-- 
2.34.1