remoteproc: k3: Refactor release_tsp() functions into common driver

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>
Tested-by: Judith Mendez <jm@ti.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20250513054510.3439842-37-b-padhi@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

5 files changed, 12 insertions, 24 deletions

diff --git a/drivers/remoteproc/ti_k3_common.c b/drivers/remoteproc/ti_k3_common.c
index 92da2af2733d..d5dccc81d460 100644
--- a/drivers/remoteproc/ti_k3_common.c
+++ b/drivers/remoteproc/ti_k3_common.c
@@ -539,5 +539,13 @@ 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 d304755990a9..aee3c28dbe51 100644
--- a/drivers/remoteproc/ti_k3_common.h
+++ b/drivers/remoteproc/ti_k3_common.h
@@ -114,4 +114,5 @@ 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 45000b68260c..7a72933bd403 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 41bca6b64517..3a11fd24eb52 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 3cd8391212f7..e34c04c135fc 100644
--- a/drivers/remoteproc/ti_k3_r5_remoteproc.c
+++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c
@@ -1017,13 +1017,6 @@ 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);
@@ -1109,7 +1102,7 @@ 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;
 	}