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path: root/drivers/media/pci/intel/ipu-bridge.c
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Diffstat (limited to 'drivers/media/pci/intel/ipu-bridge.c')
-rw-r--r--drivers/media/pci/intel/ipu-bridge.c92
1 files changed, 73 insertions, 19 deletions
diff --git a/drivers/media/pci/intel/ipu-bridge.c b/drivers/media/pci/intel/ipu-bridge.c
index f980e3125a..61750cc98d 100644
--- a/drivers/media/pci/intel/ipu-bridge.c
+++ b/drivers/media/pci/intel/ipu-bridge.c
@@ -2,6 +2,7 @@
/* Author: Dan Scally <djrscally@gmail.com> */
#include <linux/acpi.h>
+#include <linux/cleanup.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/mei_cl_bus.h>
@@ -14,6 +15,8 @@
#include <media/ipu-bridge.h>
#include <media/v4l2-fwnode.h>
+#define ADEV_DEV(adev) ACPI_PTR(&((adev)->dev))
+
/*
* 92335fcf-3203-4472-af93-7b4453ac29da
*
@@ -60,6 +63,8 @@ static const struct ipu_sensor_config ipu_supported_sensors[] = {
IPU_SENSOR_CONFIG("OVTIDB10", 1, 560000000),
/* GalaxyCore GC0310 */
IPU_SENSOR_CONFIG("INT0310", 0),
+ /* Omnivision ov01a10 */
+ IPU_SENSOR_CONFIG("OVTI01A0", 1, 400000000),
};
static const struct ipu_property_names prop_names = {
@@ -84,6 +89,7 @@ static const char * const ipu_vcm_types[] = {
"lc898212axb",
};
+#if IS_ENABLED(CONFIG_ACPI)
/*
* Used to figure out IVSC acpi device by ipu_bridge_get_ivsc_acpi_dev()
* instead of device and driver match to probe IVSC device.
@@ -97,13 +103,13 @@ static const struct acpi_device_id ivsc_acpi_ids[] = {
static struct acpi_device *ipu_bridge_get_ivsc_acpi_dev(struct acpi_device *adev)
{
- acpi_handle handle = acpi_device_handle(adev);
- struct acpi_device *consumer, *ivsc_adev;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ivsc_acpi_ids); i++) {
const struct acpi_device_id *acpi_id = &ivsc_acpi_ids[i];
+ struct acpi_device *consumer, *ivsc_adev;
+ acpi_handle handle = acpi_device_handle(adev);
for_each_acpi_dev_match(ivsc_adev, acpi_id->id, NULL, -1)
/* camera sensor depends on IVSC in DSDT if exist */
for_each_acpi_consumer_dev(ivsc_adev, consumer)
@@ -115,6 +121,12 @@ static struct acpi_device *ipu_bridge_get_ivsc_acpi_dev(struct acpi_device *adev
return NULL;
}
+#else
+static struct acpi_device *ipu_bridge_get_ivsc_acpi_dev(struct acpi_device *adev)
+{
+ return NULL;
+}
+#endif
static int ipu_bridge_match_ivsc_dev(struct device *dev, const void *adev)
{
@@ -160,7 +172,7 @@ static int ipu_bridge_check_ivsc_dev(struct ipu_sensor *sensor,
csi_dev = ipu_bridge_get_ivsc_csi_dev(adev);
if (!csi_dev) {
acpi_dev_put(adev);
- dev_err(&adev->dev, "Failed to find MEI CSI dev\n");
+ dev_err(ADEV_DEV(adev), "Failed to find MEI CSI dev\n");
return -ENODEV;
}
@@ -179,24 +191,25 @@ static int ipu_bridge_read_acpi_buffer(struct acpi_device *adev, char *id,
acpi_status status;
int ret = 0;
- status = acpi_evaluate_object(adev->handle, id, NULL, &buffer);
+ status = acpi_evaluate_object(ACPI_PTR(adev->handle),
+ id, NULL, &buffer);
if (ACPI_FAILURE(status))
return -ENODEV;
obj = buffer.pointer;
if (!obj) {
- dev_err(&adev->dev, "Couldn't locate ACPI buffer\n");
+ dev_err(ADEV_DEV(adev), "Couldn't locate ACPI buffer\n");
return -ENODEV;
}
if (obj->type != ACPI_TYPE_BUFFER) {
- dev_err(&adev->dev, "Not an ACPI buffer\n");
+ dev_err(ADEV_DEV(adev), "Not an ACPI buffer\n");
ret = -ENODEV;
goto out_free_buff;
}
if (obj->buffer.length > size) {
- dev_err(&adev->dev, "Given buffer is too small\n");
+ dev_err(ADEV_DEV(adev), "Given buffer is too small\n");
ret = -EINVAL;
goto out_free_buff;
}
@@ -217,7 +230,7 @@ static u32 ipu_bridge_parse_rotation(struct acpi_device *adev,
case IPU_SENSOR_ROTATION_INVERTED:
return 180;
default:
- dev_warn(&adev->dev,
+ dev_warn(ADEV_DEV(adev),
"Unknown rotation %d. Assume 0 degree rotation\n",
ssdb->degree);
return 0;
@@ -227,12 +240,14 @@ static u32 ipu_bridge_parse_rotation(struct acpi_device *adev,
static enum v4l2_fwnode_orientation ipu_bridge_parse_orientation(struct acpi_device *adev)
{
enum v4l2_fwnode_orientation orientation;
- struct acpi_pld_info *pld;
- acpi_status status;
+ struct acpi_pld_info *pld = NULL;
+ acpi_status status = AE_ERROR;
+#if IS_ENABLED(CONFIG_ACPI)
status = acpi_get_physical_device_location(adev->handle, &pld);
+#endif
if (ACPI_FAILURE(status)) {
- dev_warn(&adev->dev, "_PLD call failed, using default orientation\n");
+ dev_warn(ADEV_DEV(adev), "_PLD call failed, using default orientation\n");
return V4L2_FWNODE_ORIENTATION_EXTERNAL;
}
@@ -250,7 +265,8 @@ static enum v4l2_fwnode_orientation ipu_bridge_parse_orientation(struct acpi_dev
orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL;
break;
default:
- dev_warn(&adev->dev, "Unknown _PLD panel val %d\n", pld->panel);
+ dev_warn(ADEV_DEV(adev), "Unknown _PLD panel val %d\n",
+ pld->panel);
orientation = V4L2_FWNODE_ORIENTATION_EXTERNAL;
break;
}
@@ -269,12 +285,12 @@ int ipu_bridge_parse_ssdb(struct acpi_device *adev, struct ipu_sensor *sensor)
return ret;
if (ssdb.vcmtype > ARRAY_SIZE(ipu_vcm_types)) {
- dev_warn(&adev->dev, "Unknown VCM type %d\n", ssdb.vcmtype);
+ dev_warn(ADEV_DEV(adev), "Unknown VCM type %d\n", ssdb.vcmtype);
ssdb.vcmtype = 0;
}
if (ssdb.lanes > IPU_MAX_LANES) {
- dev_err(&adev->dev, "Number of lanes in SSDB is invalid\n");
+ dev_err(ADEV_DEV(adev), "Number of lanes in SSDB is invalid\n");
return -EINVAL;
}
@@ -462,8 +478,14 @@ static void ipu_bridge_create_connection_swnodes(struct ipu_bridge *bridge,
sensor->ipu_properties);
if (sensor->csi_dev) {
+ const char *device_hid = "";
+
+#if IS_ENABLED(CONFIG_ACPI)
+ device_hid = acpi_device_hid(sensor->ivsc_adev);
+#endif
+
snprintf(sensor->ivsc_name, sizeof(sensor->ivsc_name), "%s-%u",
- acpi_device_hid(sensor->ivsc_adev), sensor->link);
+ device_hid, sensor->link);
nodes[SWNODE_IVSC_HID] = NODE_SENSOR(sensor->ivsc_name,
sensor->ivsc_properties);
@@ -628,11 +650,15 @@ static int ipu_bridge_connect_sensor(const struct ipu_sensor_config *cfg,
{
struct fwnode_handle *fwnode, *primary;
struct ipu_sensor *sensor;
- struct acpi_device *adev;
+ struct acpi_device *adev = NULL;
int ret;
+#if IS_ENABLED(CONFIG_ACPI)
for_each_acpi_dev_match(adev, cfg->hid, NULL, -1) {
- if (!adev->status.enabled)
+#else
+ while (true) {
+#endif
+ if (!ACPI_PTR(adev->status.enabled))
continue;
if (bridge->n_sensors >= IPU_MAX_PORTS) {
@@ -668,7 +694,7 @@ static int ipu_bridge_connect_sensor(const struct ipu_sensor_config *cfg,
goto err_free_swnodes;
}
- sensor->adev = acpi_dev_get(adev);
+ sensor->adev = ACPI_PTR(acpi_dev_get(adev));
primary = acpi_fwnode_handle(adev);
primary->secondary = fwnode;
@@ -724,11 +750,16 @@ static int ipu_bridge_ivsc_is_ready(void)
unsigned int i;
for (i = 0; i < ARRAY_SIZE(ipu_supported_sensors); i++) {
+#if IS_ENABLED(CONFIG_ACPI)
const struct ipu_sensor_config *cfg =
&ipu_supported_sensors[i];
for_each_acpi_dev_match(sensor_adev, cfg->hid, NULL, -1) {
- if (!sensor_adev->status.enabled)
+#else
+ while (true) {
+ sensor_adev = NULL;
+#endif
+ if (!ACPI_PTR(sensor_adev->status.enabled))
continue;
adev = ipu_bridge_get_ivsc_acpi_dev(sensor_adev);
@@ -747,6 +778,24 @@ static int ipu_bridge_ivsc_is_ready(void)
return ready;
}
+static int ipu_bridge_check_fwnode_graph(struct fwnode_handle *fwnode)
+{
+ struct fwnode_handle *endpoint;
+
+ if (IS_ERR_OR_NULL(fwnode))
+ return -EINVAL;
+
+ endpoint = fwnode_graph_get_next_endpoint(fwnode, NULL);
+ if (endpoint) {
+ fwnode_handle_put(endpoint);
+ return 0;
+ }
+
+ return ipu_bridge_check_fwnode_graph(fwnode->secondary);
+}
+
+static DEFINE_MUTEX(ipu_bridge_mutex);
+
int ipu_bridge_init(struct device *dev,
ipu_parse_sensor_fwnode_t parse_sensor_fwnode)
{
@@ -755,6 +804,11 @@ int ipu_bridge_init(struct device *dev,
unsigned int i;
int ret;
+ guard(mutex)(&ipu_bridge_mutex);
+
+ if (!ipu_bridge_check_fwnode_graph(dev_fwnode(dev)))
+ return 0;
+
if (!ipu_bridge_ivsc_is_ready())
return -EPROBE_DEFER;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 12:25:31 +0000