Merge tag 'ti-driver-soc-for-v6.2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/drivers

TI SoC driver updates for v6.2 v2

* Minor bugfixes for knav_qmss_queue, smartreflex drivers
* API optimizations including using devm, bitmap apis to
  ti-sci, soc-info drivers
* k3-ringacc can now be built as modules for certain
  distros that mandate such usage.
* k3-socinfo can now detect AM62A SoCs.

* tag 'ti-driver-soc-for-v6.2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
  soc: ti: k3-socinfo: Add AM62Ax JTAG ID
  soc: ti: smartreflex: Fix PM disable depth imbalance in omap_sr_probe
  soc: ti: knav_qmss_queue: Fix PM disable depth imbalance in knav_queue_probe
  firmware: ti_sci: Use devm_bitmap_zalloc when applicable
  soc: ti: k3-ringacc: Allow the driver to be built as module
  firmware: ti_sci: Fix polled mode during system suspend
  firmware: ti_sci: Use the non-atomic bitmap API when applicable
  firmware: ti_sci: Use the bitmap API to allocate bitmaps
  drivers: soc: ti: knav_qmss_queue: Mark knav_acc_firmwares as static

Link: https://lore.kernel.org/r/20221122223856.fwackjg7fbd5jcz7@wannabe
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

5 files changed, 31 insertions, 4 deletions

diff --git a/drivers/soc/ti/Kconfig b/drivers/soc/ti/Kconfig
index 7e2fb1c16af1..e009d9589af4 100644
--- a/drivers/soc/ti/Kconfig
+++ b/drivers/soc/ti/Kconfig
@@ -63,7 +63,7 @@ config TI_SCI_PM_DOMAINS
 	  rootfs may be available.
 
 config TI_K3_RINGACC
-	bool "K3 Ring accelerator Sub System"
+	tristate "K3 Ring accelerator Sub System"
 	depends on ARCH_K3 || COMPILE_TEST
 	depends on TI_SCI_INTA_IRQCHIP
 	help
diff --git a/drivers/soc/ti/k3-ringacc.c b/drivers/soc/ti/k3-ringacc.c
index f7bf18b8229a..e01e4d815230 100644
--- a/drivers/soc/ti/k3-ringacc.c
+++ b/drivers/soc/ti/k3-ringacc.c
@@ -7,7 +7,7 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
-#include <linux/init.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
@@ -336,6 +336,9 @@ struct k3_ring *k3_ringacc_request_ring(struct k3_ringacc *ringacc,
 
 	mutex_lock(&ringacc->req_lock);
 
+	if (!try_module_get(ringacc->dev->driver->owner))
+		goto err_module_get;
+
 	if (id == K3_RINGACC_RING_ID_ANY) {
 		/* Request for any general purpose ring */
 		struct ti_sci_resource_desc *gp_rings =
@@ -380,6 +383,9 @@ out:
 	return &ringacc->rings[id];
 
 error:
+	module_put(ringacc->dev->driver->owner);
+
+err_module_get:
 	mutex_unlock(&ringacc->req_lock);
 	return NULL;
 }
@@ -616,6 +622,8 @@ int k3_ringacc_ring_free(struct k3_ring *ring)
 no_init:
 	clear_bit(ring->ring_id, ringacc->rings_inuse);
 
+	module_put(ringacc->dev->driver->owner);
+
 out:
 	mutex_unlock(&ringacc->req_lock);
 	return 0;
@@ -1450,6 +1458,7 @@ static const struct of_device_id k3_ringacc_of_match[] = {
 	{ .compatible = "ti,am654-navss-ringacc", .data = &k3_ringacc_data, },
 	{},
 };
+MODULE_DEVICE_TABLE(of, k3_ringacc_of_match);
 
 struct k3_ringacc *k3_ringacc_dmarings_init(struct platform_device *pdev,
 					    struct k3_ringacc_init_data *data)
@@ -1544,12 +1553,27 @@ static int k3_ringacc_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static int k3_ringacc_remove(struct platform_device *pdev)
+{
+	struct k3_ringacc *ringacc = dev_get_drvdata(&pdev->dev);
+
+	mutex_lock(&k3_ringacc_list_lock);
+	list_del(&ringacc->list);
+	mutex_unlock(&k3_ringacc_list_lock);
+	return 0;
+}
+
 static struct platform_driver k3_ringacc_driver = {
 	.probe		= k3_ringacc_probe,
+	.remove		= k3_ringacc_remove,
 	.driver		= {
 		.name	= "k3-ringacc",
 		.of_match_table = k3_ringacc_of_match,
 		.suppress_bind_attrs = true,
 	},
 };
-builtin_platform_driver(k3_ringacc_driver);
+module_platform_driver(k3_ringacc_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("TI Ringacc driver for K3 SOCs");
+MODULE_AUTHOR("Grygorii Strashko <grygorii.strashko@ti.com>");
diff --git a/drivers/soc/ti/k3-socinfo.c b/drivers/soc/ti/k3-socinfo.c
index 91f441ee6175..d15764e19d96 100644
--- a/drivers/soc/ti/k3-socinfo.c
+++ b/drivers/soc/ti/k3-socinfo.c
@@ -43,6 +43,7 @@ static const struct k3_soc_id {
 	{ 0xBB38, "AM64X" },
 	{ 0xBB75, "J721S2"},
 	{ 0xBB7E, "AM62X" },
+	{ 0xBB8D, "AM62AX" },
 };
 
 static int
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 92af7d1b6f5b..8fb76908be70 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -67,7 +67,7 @@ static DEFINE_MUTEX(knav_dev_lock);
  * Newest followed by older ones. Search is done from start of the array
  * until a firmware file is found.
  */
-const char *knav_acc_firmwares[] = {"ks2_qmss_pdsp_acc48.bin"};
+static const char * const knav_acc_firmwares[] = {"ks2_qmss_pdsp_acc48.bin"};
 
 static bool device_ready;
 bool knav_qmss_device_ready(void)
@@ -1785,6 +1785,7 @@ static int knav_queue_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0) {
+		pm_runtime_disable(&pdev->dev);
 		dev_err(dev, "Failed to enable QMSS\n");
 		return ret;
 	}
diff --git a/drivers/soc/ti/smartreflex.c b/drivers/soc/ti/smartreflex.c
index ad2bb72e640c..6a389a6444f3 100644
--- a/drivers/soc/ti/smartreflex.c
+++ b/drivers/soc/ti/smartreflex.c
@@ -932,6 +932,7 @@ static int omap_sr_probe(struct platform_device *pdev)
 err_debugfs:
 	debugfs_remove_recursive(sr_info->dbg_dir);
 err_list_del:
+	pm_runtime_disable(&pdev->dev);
 	list_del(&sr_info->node);
 	clk_unprepare(sr_info->fck);