Add helper function ishtp_set_drvdata() and ishtp_get_drvdata() for
different ISH client drivers to set/get private driver data.
Signed-off-by: Even Xu <even.xu@xxxxxxxxx>
Reviewed-by: Andriy Shevchenko <andriy.shevchenko@xxxxxxxxx>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
---
drivers/hid/intel-ish-hid/ishtp/bus.c | 27 +++++++++++++++++++++++++++
drivers/hid/intel-ish-hid/ishtp/bus.h | 3 +++
2 files changed, 30 insertions(+)
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c
index 2565215..40e13f1 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.c
@@ -562,6 +562,33 @@ void ishtp_put_device(struct ishtp_cl_device *cl_device)
EXPORT_SYMBOL(ishtp_put_device);
/**
+ * ishtp_set_drvdata() - set client driver data
+ * @cl_device: client device instance
+ * @data: driver data need to be set
+ *
+ * Set client driver data to cl_device->driver_data.
+ */
+void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data)
+{
+ cl_device->driver_data = data;
+}
+EXPORT_SYMBOL(ishtp_set_drvdata);
+
+/**
+ * ishtp_get_drvdata() - get client driver data
+ * @cl_device: client device instance
+ *
+ * Get client driver data from cl_device->driver_data.
+ *
+ * Return: pointer of driver data
+ */
+void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device)
+{
+ return cl_device->driver_data;
+}
+EXPORT_SYMBOL(ishtp_get_drvdata);
+
+/**
* ishtp_bus_new_client() - Create a new client
* @dev: ISHTP device instance
*
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.h b/drivers/hid/intel-ish-hid/ishtp/bus.h
index a1ffae7..8888331 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.h
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.h
@@ -101,6 +101,9 @@ void ishtp_reset_compl_handler(struct ishtp_device *dev);
void ishtp_put_device(struct ishtp_cl_device *);
void ishtp_get_device(struct ishtp_cl_device *);
+void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data);
+void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device);
+
int __ishtp_cl_driver_register(struct ishtp_cl_driver *driver,
struct module *owner);
#define ishtp_cl_driver_register(driver) \
--
2.7.4
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