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

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

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Nicolas Frayer <nfrayer@baylibre.com>
Reviewed-by: Nicolas Frayer <nfrayer@baylibre.com>
Link: https://lore.kernel.org/r/20221029075356.7296-1-peter.ujfalusi@gmail.com
This commit is contained in:
Peter Ujfalusi 2022-10-29 10:53:56 +03:00 committed by Nishanth Menon
parent b13b2c3e0e
commit c07f216a8b
2 changed files with 27 additions and 3 deletions
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2
drivers/soc/ti/Kconfig
View File

@ -63,7 +63,7 @@ config TI_SCI_PM_DOMAINS
rootfs may be available. rootfs may be available.
config TI_K3_RINGACC config TI_K3_RINGACC
bool "K3 Ring accelerator Sub System" tristate "K3 Ring accelerator Sub System"
depends on ARCH_K3 || COMPILE_TEST depends on ARCH_K3 || COMPILE_TEST
depends on TI_SCI_INTA_IRQCHIP depends on TI_SCI_INTA_IRQCHIP
help help

28
drivers/soc/ti/k3-ringacc.c
View File

@ -7,7 +7,7 @@
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/io.h> #include <linux/io.h>
#include <linux/init.h> #include <linux/module.h>
#include <linux/of.h> #include <linux/of.h>
#include <linux/of_device.h> #include <linux/of_device.h>
#include <linux/platform_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); mutex_lock(&ringacc->req_lock);
if (!try_module_get(ringacc->dev->driver->owner))
goto err_module_get;
if (id == K3_RINGACC_RING_ID_ANY) { if (id == K3_RINGACC_RING_ID_ANY) {
/* Request for any general purpose ring */ /* Request for any general purpose ring */
struct ti_sci_resource_desc *gp_rings = struct ti_sci_resource_desc *gp_rings =
@ -380,6 +383,9 @@ out:
return &ringacc->rings[id]; return &ringacc->rings[id];
error: error:
module_put(ringacc->dev->driver->owner);
err_module_get:
mutex_unlock(&ringacc->req_lock); mutex_unlock(&ringacc->req_lock);
return NULL; return NULL;
} }
@ -616,6 +622,8 @@ int k3_ringacc_ring_free(struct k3_ring *ring)
no_init: no_init:
clear_bit(ring->ring_id, ringacc->rings_inuse); clear_bit(ring->ring_id, ringacc->rings_inuse);
module_put(ringacc->dev->driver->owner);
out: out:
mutex_unlock(&ringacc->req_lock); mutex_unlock(&ringacc->req_lock);
return 0; 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, }, { .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 *k3_ringacc_dmarings_init(struct platform_device *pdev,
struct k3_ringacc_init_data *data) struct k3_ringacc_init_data *data)
@ -1544,12 +1553,27 @@ static int k3_ringacc_probe(struct platform_device *pdev)
return 0; 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 = { static struct platform_driver k3_ringacc_driver = {
.probe = k3_ringacc_probe, .probe = k3_ringacc_probe,
.remove = k3_ringacc_remove,
.driver = { .driver = {
.name = "k3-ringacc", .name = "k3-ringacc",
.of_match_table = k3_ringacc_of_match, .of_match_table = k3_ringacc_of_match,
.suppress_bind_attrs = true, .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>");