Allow attaching miscellaneous quirk information to devices as drvdata.
Signed-off-by: Alexander Shishkin <alexander.shish...@linux.intel.com>
---
drivers/hwtracing/intel_th/core.c | 6 ++++--
drivers/hwtracing/intel_th/intel_th.h | 27 ++++++++++++++++++++-------
drivers/hwtracing/intel_th/pci.c | 3 ++-
3 files changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/hwtracing/intel_th/core.c
b/drivers/hwtracing/intel_th/core.c
index d1760003b4..e915ab24f4 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -576,6 +576,7 @@ intel_th_subdevice_alloc(struct intel_th *th,
if (!thdev)
return ERR_PTR(-ENOMEM);
+ thdev->drvdata = th->drvdata;
memcpy(res, subdev->res,
sizeof(struct resource) * subdev->nres);
@@ -789,8 +790,8 @@ static const struct file_operations intel_th_output_fops = {
* @irq: irq number
*/
struct intel_th *
-intel_th_alloc(struct device *dev, struct resource *devres,
- unsigned int ndevres, int irq)
+intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
+ struct resource *devres, unsigned int ndevres, int irq)
{
struct intel_th *th;
int err;
@@ -812,6 +813,7 @@ intel_th_alloc(struct device *dev, struct resource *devres,
goto err_ida;
}
th->dev = dev;
+ th->drvdata = drvdata;
th->resource = devres;
th->num_resources = ndevres;
diff --git a/drivers/hwtracing/intel_th/intel_th.h
b/drivers/hwtracing/intel_th/intel_th.h
index 3f4558404d..68244602ca 100644
--- a/drivers/hwtracing/intel_th/intel_th.h
+++ b/drivers/hwtracing/intel_th/intel_th.h
@@ -47,9 +47,20 @@ struct intel_th_output {
bool active;
};
+/**
+ * struct intel_th_drvdata - describes hardware capabilities and quirks
+ * @tscu_enable: device needs SW to enable time stamping unit
+ */
+struct intel_th_drvdata {
+ unsigned int tscu_enable : 1;
+};
+
+#define INTEL_TH_CAP(_th, _cap) ((_th)->drvdata ? (_th)->drvdata->_cap : 0)
+
/**
* struct intel_th_device - device on the intel_th bus
* @dev: device
+ * @drvdata: hardware capabilities/quirks
* @resource: array of resources available to this device
* @num_resources: number of resources in @resource array
* @type: INTEL_TH_{SOURCE,OUTPUT,SWITCH}
@@ -59,11 +70,12 @@ struct intel_th_output {
* @name: device name to match the driver
*/
struct intel_th_device {
- struct device dev;
- struct resource *resource;
- unsigned int num_resources;
- unsigned int type;
- int id;
+ struct device dev;
+ struct intel_th_drvdata *drvdata;
+ struct resource *resource;
+ unsigned int num_resources;
+ unsigned int type;
+ int id;
/* INTEL_TH_SWITCH specific */
bool host_mode;
@@ -206,8 +218,8 @@ static inline struct intel_th *to_intel_th(struct
intel_th_device *thdev)
}
struct intel_th *
-intel_th_alloc(struct device *dev, struct resource *devres,
- unsigned int ndevres, int irq);
+intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
+ struct resource *devres, unsigned int ndevres, int irq);
void intel_th_free(struct intel_th *th);
int intel_th_driver_register(struct intel_th_driver *thdrv);
@@ -248,6 +260,7 @@ struct intel_th {
struct intel_th_device *thdev[TH_SUBDEVICE_MAX];
struct intel_th_device *hub;
+ struct intel_th_drvdata *drvdata;
struct resource *resource;
unsigned int num_thdevs;
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 5a9a9e8072..aed6d59499 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -30,6 +30,7 @@
static int intel_th_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
+ struct intel_th_drvdata *drvdata = (void *)id->driver_data;
struct intel_th *th;
int err;
@@ -41,7 +42,7 @@ static int intel_th_pci_probe(struct pci_dev *pdev,
if (err)
return err;
- th = intel_th_alloc(&pdev->dev, pdev->resource,
+ th = intel_th_alloc(&pdev->dev, drvdata, pdev->resource,
DEVICE_COUNT_RESOURCE, pdev->irq);
if (IS_ERR(th))
return PTR_ERR(th);
--
2.14.1
