From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: jikos@kernel.org, benjamin.tissoires@redhat.com
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH v2 10/10] HID: intel-ish-hid: Add interface function for PCI device pointer
Date: Mon, 18 Mar 2019 12:14:28 -0700 [thread overview]
Message-ID: <20190318191428.6527-11-srinivas.pandruvada@linux.intel.com> (raw)
In-Reply-To: <20190318191428.6527-1-srinivas.pandruvada@linux.intel.com>
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(+)
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
@@ -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
*
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);
--
2.17.2
next prev parent reply other threads:[~2019-03-18 19:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-18 19:14 [PATCH v2 00/10] HID: intel-ish-hid: Clean up external interfaces Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 01/10] HID: intel-ish-hid: Add match callback to ishtp bus type Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 02/10] HID: intel-ish-hid: Hide members of struct ishtp_cl_device Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 03/10] HID: intel-ish-hid: Simplify ishtp_cl_link() Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 04/10] HID: intel-ish-hid: Move driver registry functions Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 05/10] HID: intel-ish-hid: Store ishtp_cl_device instance in device Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 06/10] HID: intel-ish-hid: Move the common functions from client.h Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 07/10] HID: intel-ish-hid: Add interface functions for struct ishtp_cl Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 08/10] HID: intel-ish-hid: Move functions related to bus and device Srinivas Pandruvada
2019-03-18 19:14 ` [PATCH v2 09/10] HID: intel-ish-hid: Use the new interface functions in HID ish client Srinivas Pandruvada
2019-03-18 19:14 ` Srinivas Pandruvada [this message]
2019-03-19 10:59 ` [PATCH v2 00/10] HID: intel-ish-hid: Clean up external interfaces Jiri Kosina
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