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Commit 0e568a16 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Jiri Kosina
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HID: intel-ish-hid: Add interface function for PCI device pointer 



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: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 29b06d12

drivers/hid/intel-ish-hid/ishtp/bus.c

+13 −0
Original line number Diff line number Diff line
@@ -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

 *

include/linux/intel-ish-client-if.h

+2 −0
Original line number Diff line number Diff line
@@ -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);