[PATCH v1] soc: qcom: apr: Drop unused apr_device_id

From: Uwe Kleine-König (The Capable Hub)

Date: Mon Jun 15 2026 - 06:05:12 EST


apr_device_id was introduced in commit 6adba21eb434 ("soc: qcom: Add APR
bus driver") in 2018, and since then not a single driver made use of it.

So drop the unused id_table pointer from struct apr_driver and move
APR_NAME_SIZE to the apr header which still has a usage of it.

Note that with the id_table being NULL apr_device_match() degrades to just
of_driver_match_device(), so replace this callback accordingly.

Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@xxxxxxxxxxxx>
---
drivers/soc/qcom/apr.c | 25 +------------------------
include/linux/mod_devicetable.h | 11 -----------
include/linux/soc/qcom/apr.h | 4 ++--
3 files changed, 3 insertions(+), 37 deletions(-)

diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index ea7f83916d8d..2073edb416a4 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -338,29 +338,6 @@ static void apr_rxwq(struct work_struct *work)
}
}

-static int apr_device_match(struct device *dev, const struct device_driver *drv)
-{
- struct apr_device *adev = to_apr_device(dev);
- const struct apr_driver *adrv = to_apr_driver(drv);
- const struct apr_device_id *id = adrv->id_table;
-
- /* Attempt an OF style match first */
- if (of_driver_match_device(dev, drv))
- return 1;
-
- if (!id)
- return 0;
-
- while (id->domain_id != 0 || id->svc_id != 0) {
- if (id->domain_id == adev->domain_id &&
- id->svc_id == adev->svc.id)
- return 1;
- id++;
- }
-
- return 0;
-}
-
static int apr_device_probe(struct device *dev)
{
struct apr_device *adev = to_apr_device(dev);
@@ -401,7 +378,7 @@ static int apr_uevent(const struct device *dev, struct kobj_uevent_env *env)

const struct bus_type aprbus = {
.name = "aprbus",
- .match = apr_device_match,
+ .match = of_driver_match_device,
.probe = apr_device_probe,
.uevent = apr_uevent,
.remove = apr_device_remove,
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 7f44057aa65e..d74ff3ee1424 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -547,17 +547,6 @@ struct slim_device_id {
kernel_ulong_t driver_data;
};

-#define APR_NAME_SIZE 32
-#define APR_MODULE_PREFIX "apr:"
-
-struct apr_device_id {
- char name[APR_NAME_SIZE];
- __u32 domain_id;
- __u32 svc_id;
- __u32 svc_version;
- kernel_ulong_t driver_data; /* Data private to the driver */
-};
-
#define SPMI_NAME_SIZE 32
#define SPMI_MODULE_PREFIX "spmi:"

diff --git a/include/linux/soc/qcom/apr.h b/include/linux/soc/qcom/apr.h
index 58fa1df96347..2e4231092088 100644
--- a/include/linux/soc/qcom/apr.h
+++ b/include/linux/soc/qcom/apr.h
@@ -5,7 +5,6 @@

#include <linux/spinlock.h>
#include <linux/device.h>
-#include <linux/mod_devicetable.h>
#include <dt-bindings/soc/qcom,apr.h>
#include <dt-bindings/soc/qcom,gpr.h>

@@ -135,6 +134,8 @@ struct pkt_router_svc {

typedef struct pkt_router_svc gpr_port_t;

+#define APR_NAME_SIZE 32
+
struct apr_device {
struct device dev;
uint16_t svc_id;
@@ -158,7 +159,6 @@ struct apr_driver {
const struct apr_resp_pkt *d);
gpr_port_cb gpr_callback;
struct device_driver driver;
- const struct apr_device_id *id_table;
};

typedef struct apr_driver gpr_driver_t;

base-commit: c425609d6ac4012c8bbf01ec2e10e801b1923a7b
--
2.47.3