[PATCH v10 31/33] remoteproc: k3: Refactor mem_release() functions into common driver

[Beleswar Padhi <b-padhi@ti.com>]

The mem_release() implementations in the TI K3 R5, DSP and M4 remoteproc
drivers 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 use this common function in R5, DSP and M4 drivers.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
v10: Changelog:
1. Update commit message to call out changes in a better way.

Link to v9:
https://lore.kernel.org/all/20250317120622.1746415-25-b-padhi@ti.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 +--------
 drivers/remoteproc/ti_k3_r5_remoteproc.c  | 9 +--------
 5 files changed, 12 insertions(+), 24 deletions(-)

diff --git a/drivers/remoteproc/ti_k3_common.c b/drivers/remoteproc/ti_k3_common.c
index 4358502850214..ec7c06f492ec5 100644
--- a/drivers/remoteproc/ti_k3_common.c
+++ b/drivers/remoteproc/ti_k3_common.c
@@ -463,5 +463,13 @@ 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 a811c4951e6b0..70656215c4d72 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 5ba82944a537f..6c79b347a610a 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 81862a7809b5b..aeddbf82901f9 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;
 
diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
index 94e9506a8e6e2..59bd610f2a8c7 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -761,13 +761,6 @@ static int k3_r5_rproc_configure(struct k3_rproc *kproc)
 	return ret;
 }
 
-static void k3_r5_mem_release(void *data)
-{
-	struct device *dev = data;
-
-	of_reserved_mem_device_release(dev);
-}
-
 static int k3_r5_reserved_mem_init(struct k3_rproc *kproc)
 {
 	struct device *dev = kproc->dev;
@@ -798,7 +791,7 @@ static int k3_r5_reserved_mem_init(struct k3_rproc *kproc)
 		return ret;
 	}
 
-	ret = devm_add_action_or_reset(dev, k3_r5_mem_release, dev);
+	ret = devm_add_action_or_reset(dev, k3_mem_release, dev);
 	if (ret)
 		return ret;
 
-- 
2.34.1