@@ -855,6 +855,19 @@ struct device *ishtp_device(struct ishtp_cl_device *device)
}
EXPORT_SYMBOL(ishtp_device);
+/**
+ * ishtp_get_pci_device() - Return PCI device dev pointer
+ * This interface is used to return PCI device pointer
+ * from ishtp_cl_device instance.
+ *
+ * Return: device *.
+ */
+struct device *ishtp_get_pci_device(struct ishtp_cl_device *device)
+{
+ return device->ishtp_dev->devc;
+}
+EXPORT_SYMBOL(ishtp_get_pci_device);
+
/**
* ishtp_trace_callback() - Return trace callback
*
@@ -77,6 +77,8 @@ int ishtp_register_event_cb(struct ishtp_cl_device *device,
struct device *ishtp_device(struct ishtp_cl_device *cl_device);
/* Trace interface for clients */
void *ishtp_trace_callback(struct ishtp_cl_device *cl_device);
+/* Get device pointer of PCI device for DMA acces */
+struct device *ishtp_get_pci_device(struct ishtp_cl_device *cl_device);
struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device);
void ishtp_cl_free(struct ishtp_cl *cl);
Instead of directly accessing PCI device poitner via struct ishtp_cl, create interface function for same. This is required for DMA transfer. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> --- drivers/hid/intel-ish-hid/ishtp/bus.c | 13 +++++++++++++ include/linux/intel-ish-client-if.h | 2 ++ 2 files changed, 15 insertions(+)