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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2019-03-18 12:14:28 -0700 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2019-03-19 11:57:24 +0100 |
| commit | 0e568a16af403263f8e421f1f10b91f9f15b52c3 (patch) | |
| tree | be788ed1972401dbcf935a498a75e5251e9f8d16 | |
| parent | 29b06d12ba796a4c3e7bdfd8a26230eefb261261 (diff) | |
| download | linux-0e568a16af403263f8e421f1f10b91f9f15b52c3.tar.gz linux-0e568a16af403263f8e421f1f10b91f9f15b52c3.tar.bz2 linux-0e568a16af403263f8e421f1f10b91f9f15b52c3.zip | |
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: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | drivers/hid/intel-ish-hid/ishtp/bus.c | 13 | ||||
| -rw-r--r-- | include/linux/intel-ish-client-if.h | 2 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c index 66a485a41481..fb8ca12955b4 100644 --- a/drivers/hid/intel-ish-hid/ishtp/bus.c +++ b/drivers/hid/intel-ish-hid/ishtp/bus.c @@ -856,6 +856,19 @@ 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 * * This interface is used to return trace callback function pointer. diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h index e98bfbb1e07e..16255c2ca2f4 100644 --- a/include/linux/intel-ish-client-if.h +++ b/include/linux/intel-ish-client-if.h @@ -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); |