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

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

The release_tsp() implementations in the TI K3 R5, DSP and M4 remoteproc
drivers release the TI-SCI processor control of a remote processor,
which is auto triggered upon device removal.

Refactor these functions into ti_k3_common.c driver as k3_release_tsp()
and use this common function throughout 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/20250317120622.1746415-27-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 f7fa757de04de..64edf536f384d 100644
--- a/drivers/remoteproc/ti_k3_common.c
+++ b/drivers/remoteproc/ti_k3_common.c
@@ -541,5 +541,13 @@ int k3_reserved_mem_init(struct k3_rproc *kproc)
 }
 EXPORT_SYMBOL_GPL(k3_reserved_mem_init);
 
+void k3_release_tsp(void *data)
+{
+	struct ti_sci_proc *tsp = data;
+
+	ti_sci_proc_release(tsp);
+}
+EXPORT_SYMBOL_GPL(k3_release_tsp);
+
 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 148717942dfb3..a9981303dde83 100644
--- a/drivers/remoteproc/ti_k3_common.h
+++ b/drivers/remoteproc/ti_k3_common.h
@@ -109,4 +109,5 @@ int k3_rproc_of_get_memories(struct platform_device *pdev,
 			     struct k3_rproc *kproc);
 void k3_mem_release(void *data);
 int k3_reserved_mem_init(struct k3_rproc *kproc);
+void k3_release_tsp(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 45000b68260c1..7a72933bd403b 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_release_tsp(void *data)
-{
-	struct ti_sci_proc *tsp = data;
-
-	ti_sci_proc_release(tsp);
-}
-
 static int k3_dsp_rproc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -136,7 +129,7 @@ static int k3_dsp_rproc_probe(struct platform_device *pdev)
 		dev_err_probe(dev, ret, "ti_sci_proc_request failed\n");
 		return ret;
 	}
-	ret = devm_add_action_or_reset(dev, k3_dsp_release_tsp, kproc->tsp);
+	ret = devm_add_action_or_reset(dev, k3_release_tsp, kproc->tsp);
 	if (ret)
 		return ret;
 
diff --git a/drivers/remoteproc/ti_k3_m4_remoteproc.c b/drivers/remoteproc/ti_k3_m4_remoteproc.c
index d6c9d90184bb4..6a5ff3b7a82a3 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_release_tsp(void *data)
-{
-	struct ti_sci_proc *tsp = data;
-
-	ti_sci_proc_release(tsp);
-}
-
 static const struct rproc_ops k3_m4_rproc_ops = {
 	.prepare = k3_rproc_prepare,
 	.unprepare = k3_rproc_unprepare,
@@ -93,7 +86,7 @@ static int k3_m4_rproc_probe(struct platform_device *pdev)
 	ret = ti_sci_proc_request(kproc->tsp);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "ti_sci_proc_request failed\n");
-	ret = devm_add_action_or_reset(dev, k3_m4_release_tsp, kproc->tsp);
+	ret = devm_add_action_or_reset(dev, k3_release_tsp, kproc->tsp);
 	if (ret)
 		return ret;
 
diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c
index 77183606b9d4d..aada8a3795357 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -1011,13 +1011,6 @@ static int k3_r5_core_of_get_sram_memories(struct platform_device *pdev,
 	return 0;
 }
 
-static void k3_r5_release_tsp(void *data)
-{
-	struct ti_sci_proc *tsp = data;
-
-	ti_sci_proc_release(tsp);
-}
-
 static int k3_r5_cluster_rproc_init(struct platform_device *pdev)
 {
 	struct k3_r5_cluster *cluster = platform_get_drvdata(pdev);
@@ -1103,7 +1096,7 @@ static int k3_r5_cluster_rproc_init(struct platform_device *pdev)
 			goto out;
 		}
 
-		ret = devm_add_action_or_reset(cdev, k3_r5_release_tsp, kproc->tsp);
+		ret = devm_add_action_or_reset(cdev, k3_release_tsp, kproc->tsp);
 		if (ret)
 			goto out;
 	}
-- 
2.34.1