Merge tag 'ti-driver-soc-for-v6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/drivers

TI SoC driver updates for v6.7

- Generic fixups: Convert to platform remove callback returning void
- ti_sci: Minor fixups and mark driver as non-removable
- k3-socinfo: Documentation fixups, cosmetic fixups
- knav_qmss_queue: Optimize with device_get_match_data

Signed-off-by: Nishanth Menon <nm@ti.com>

* tag 'ti-driver-soc-for-v6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
  soc: ti: k3-socinfo: Avoid overriding return value
  soc: ti: k3-socinfo: Fix typo in bitfield documentation
  soc: ti: knav_qmss_queue: Use device_get_match_data()
  firmware: ti_sci: Use device_get_match_data()
  soc/ti: wkup_m3_ipc: Convert to platform remove callback returning void
  soc/ti: smartreflex: Convert to platform remove callback returning void
  soc/ti: pruss: Convert to platform remove callback returning void
  soc/ti: pm33xx: Convert to platform remove callback returning void
  soc/ti: knav_qmss_queue: Convert to platform remove callback returning void
  soc/ti: knav_dma: Convert to platform remove callback returning void
  soc/ti: k3-ringacc: Convert to platform remove callback returning void
  firmware: ti_sci: Mark driver as non removable
  firmware: ti_sci: refactor deprecated strncpy
  firmware: ti_sci: Use list_for_each_entry() helper

Link: https://lore.kernel.org/r/20231018165226.33x5cjn5jmgnm3di@magnolia
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 9 insertions, 60 deletions

diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index 26a37f47f4ca..7041befc756a 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -16,7 +16,10 @@
 #include <linux/kernel.h>
 #include <linux/mailbox_client.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/semaphore.h>
 #include <linux/slab.h>
 #include <linux/soc/ti/ti-msgmgr.h>
@@ -190,19 +193,6 @@ static int ti_sci_debugfs_create(struct platform_device *pdev,
 	return 0;
 }
 
-/**
- * ti_sci_debugfs_destroy() - clean up log debug file
- * @pdev:	platform device pointer
- * @info:	Pointer to SCI entity information
- */
-static void ti_sci_debugfs_destroy(struct platform_device *pdev,
-				   struct ti_sci_info *info)
-{
-	if (IS_ERR(info->debug_region))
-		return;
-
-	debugfs_remove(info->d);
-}
 #else /* CONFIG_DEBUG_FS */
 static inline int ti_sci_debugfs_create(struct platform_device *dev,
 					struct ti_sci_info *info)
@@ -485,7 +475,7 @@ static int ti_sci_cmd_get_revision(struct ti_sci_info *info)
 	ver->abi_major = rev_info->abi_major;
 	ver->abi_minor = rev_info->abi_minor;
 	ver->firmware_revision = rev_info->firmware_revision;
-	strncpy(ver->firmware_description, rev_info->firmware_description,
+	strscpy(ver->firmware_description, rev_info->firmware_description,
 		sizeof(ver->firmware_description));
 
 fail:
@@ -2886,7 +2876,6 @@ static void ti_sci_setup_ops(struct ti_sci_info *info)
 const struct ti_sci_handle *ti_sci_get_handle(struct device *dev)
 {
 	struct device_node *ti_sci_np;
-	struct list_head *p;
 	struct ti_sci_handle *handle = NULL;
 	struct ti_sci_info *info;
 
@@ -2901,8 +2890,7 @@ const struct ti_sci_handle *ti_sci_get_handle(struct device *dev)
 	}
 
 	mutex_lock(&ti_sci_list_mutex);
-	list_for_each(p, &ti_sci_list) {
-		info = list_entry(p, struct ti_sci_info, node);
+	list_for_each_entry(info, &ti_sci_list, node) {
 		if (ti_sci_np == info->dev->of_node) {
 			handle = &info->handle;
 			info->users++;
@@ -3012,7 +3000,6 @@ const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
 	struct ti_sci_handle *handle = NULL;
 	struct device_node *ti_sci_np;
 	struct ti_sci_info *info;
-	struct list_head *p;
 
 	if (!np) {
 		pr_err("I need a device pointer\n");
@@ -3024,8 +3011,7 @@ const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
 		return ERR_PTR(-ENODEV);
 
 	mutex_lock(&ti_sci_list_mutex);
-	list_for_each(p, &ti_sci_list) {
-		info = list_entry(p, struct ti_sci_info, node);
+	list_for_each_entry(info, &ti_sci_list, node) {
 		if (ti_sci_np == info->dev->of_node) {
 			handle = &info->handle;
 			info->users++;
@@ -3310,7 +3296,6 @@ MODULE_DEVICE_TABLE(of, ti_sci_of_match);
 static int ti_sci_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	const struct of_device_id *of_id;
 	const struct ti_sci_desc *desc;
 	struct ti_sci_xfer *xfer;
 	struct ti_sci_info *info = NULL;
@@ -3321,12 +3306,7 @@ static int ti_sci_probe(struct platform_device *pdev)
 	int reboot = 0;
 	u32 h_id;
 
-	of_id = of_match_device(ti_sci_of_match, dev);
-	if (!of_id) {
-		dev_err(dev, "OF data missing\n");
-		return -EINVAL;
-	}
-	desc = of_id->data;
+	desc = device_get_match_data(dev);
 
 	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
@@ -3449,43 +3429,12 @@ out:
 	return ret;
 }
 
-static int ti_sci_remove(struct platform_device *pdev)
-{
-	struct ti_sci_info *info;
-	struct device *dev = &pdev->dev;
-	int ret = 0;
-
-	of_platform_depopulate(dev);
-
-	info = platform_get_drvdata(pdev);
-
-	if (info->nb.notifier_call)
-		unregister_restart_handler(&info->nb);
-
-	mutex_lock(&ti_sci_list_mutex);
-	if (info->users)
-		ret = -EBUSY;
-	else
-		list_del(&info->node);
-	mutex_unlock(&ti_sci_list_mutex);
-
-	if (!ret) {
-		ti_sci_debugfs_destroy(pdev, info);
-
-		/* Safe to free channels since no more users */
-		mbox_free_channel(info->chan_tx);
-		mbox_free_channel(info->chan_rx);
-	}
-
-	return ret;
-}
-
 static struct platform_driver ti_sci_driver = {
 	.probe = ti_sci_probe,
-	.remove = ti_sci_remove,
 	.driver = {
 		   .name = "ti-sci",
 		   .of_match_table = of_match_ptr(ti_sci_of_match),
+		   .suppress_bind_attrs = true,
 	},
 };
 module_platform_driver(ti_sci_driver);