Commit c07f216a authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Nishanth Menon
Browse files

soc: ti: k3-ringacc: Allow the driver to be built as module 



The ring accelerator driver can be built as module since all depending
functions are exported.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Tested-by: default avatarNicolas Frayer <nfrayer@baylibre.com>
Reviewed-by: default avatarNicolas Frayer <nfrayer@baylibre.com>
Link: https://lore.kernel.org/r/20221029075356.7296-1-peter.ujfalusi@gmail.com
parent b13b2c3e

drivers/soc/ti/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -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

drivers/soc/ti/k3-ringacc.c

+26 −2
Original line number Diff line number Diff line
@@ -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 @@ struct k3_ring *k3_ringacc_request_ring(struct k3_ringacc *ringacc, 
	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>");