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From: Moritz Fischer <mdf@kernel.org>
To: gregkh@linuxfoundation.org
Cc: linux-fpga@vger.kernel.org, trix@redhat.com, hao.wu@intel.com,
	yilun.xu@intel.com, russell.h.weight@intel.com,
	Matthew Gerlach <matthew.gerlach@linux.intel.com>,
	Moritz Fischer <mdf@kernel.org>
Subject: [PATCH 4/8] fpga: dfl: move dfl_device_id to mod_devicetable.h
Date: Thu, 10 Dec 2020 08:58:00 -0800
Message-ID: <20201210165804.44234-5-mdf@kernel.org> (raw)
In-Reply-To: <20201210165804.44234-1-mdf@kernel.org>

From: Xu Yilun <yilun.xu@intel.com>

In order to support MODULE_DEVICE_TABLE() for dfl device driver, this
patch moves struct dfl_device_id to mod_devicetable.h

Some brief description for DFL (Device Feature List) is added to make
the DFL known to the whole kernel.

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
---
 drivers/fpga/dfl.h              | 13 +------------
 include/linux/mod_devicetable.h | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index ac373b1fcff9..549c7900dcfd 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/iopoll.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/uuid.h>
@@ -525,18 +526,6 @@ enum dfl_id_type {
 	DFL_ID_MAX,
 };
 
-/**
- * struct dfl_device_id -  dfl device identifier
- * @type: DFL FIU type of the device. See enum dfl_id_type.
- * @feature_id: feature identifier local to its DFL FIU type.
- * @driver_data: driver specific data.
- */
-struct dfl_device_id {
-	u16 type;
-	u16 feature_id;
-	unsigned long driver_data;
-};
-
 /**
  * struct dfl_device - represent an dfl device on dfl bus
  *
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 5b08a473cdba..7d36c8c0fdc2 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -838,4 +838,28 @@ struct mhi_device_id {
 	kernel_ulong_t driver_data;
 };
 
+/*
+ * DFL (Device Feature List)
+ *
+ * DFL defines a linked list of feature headers within the device MMIO space to
+ * provide an extensible way of adding features. Software can walk through these
+ * predefined data structures to enumerate features. It is now used in the FPGA.
+ * See Documentation/fpga/dfl.rst for more information.
+ *
+ * The dfl bus type is introduced to match the individual feature devices (dfl
+ * devices) for specific dfl drivers.
+ */
+
+/**
+ * struct dfl_device_id -  dfl device identifier
+ * @type: DFL FIU type of the device. See enum dfl_id_type.
+ * @feature_id: feature identifier local to its DFL FIU type.
+ * @driver_data: driver specific data.
+ */
+struct dfl_device_id {
+	__u16 type;
+	__u16 feature_id;
+	kernel_ulong_t driver_data;
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */
-- 
2.29.2


  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-10 16:57 [PATCH 0/8] FPGA DFL Changes for 5.11 Moritz Fischer
2020-12-10 16:57 ` [PATCH 1/8] fpga: dfl: refactor cci_enumerate_feature_devs() Moritz Fischer
2020-12-10 16:57 ` [PATCH 2/8] fpga: dfl-pci: locate DFLs by PCIe vendor specific capability Moritz Fischer
2020-12-10 16:57 ` [PATCH 3/8] fpga: dfl: fix the definitions of type & feature_id for dfl devices Moritz Fischer
2020-12-10 16:58 ` Moritz Fischer [this message]
2020-12-10 16:58 ` [PATCH 5/8] fpga: dfl: add dfl bus support to MODULE_DEVICE_TABLE() Moritz Fischer
2020-12-14 13:43   ` Tom Rix
2020-12-15  1:39     ` Xu Yilun
2020-12-10 16:58 ` [PATCH 6/8] fpga: dfl: move dfl bus related APIs to include/linux/dfl.h Moritz Fischer
2020-12-10 16:58 ` [PATCH 7/8] fpga: dfl: add support for N3000 Nios private feature Moritz Fischer
2020-12-10 16:58 ` [PATCH 8/8] memory: dfl-emif: add the DFL EMIF private feature driver Moritz Fischer
2020-12-14 14:05 ` [PATCH 0/8] FPGA DFL Changes for 5.11 Greg KH
2021-01-07  4:37 [PATCH 0/8] FPGA DFL Changes for 5.12 Moritz Fischer
2021-01-07  4:37 ` [PATCH 4/8] fpga: dfl: move dfl_device_id to mod_devicetable.h Moritz Fischer

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