[4/4] fpga pr ip: Platform driver for Altera Partial Reconfiguration IP.

Commit Message

Matthew Gerlach Feb. 15, 2017, 9:10 p.m. UTC

From: Matthew Gerlach <[e-mail]>

This adds a platform bus driver for a fpga-mgr driver
that uses the Altera Partial Reconfiguration IP component.

Signed-off-by: Matthew Gerlach <[e-mail]>
---
 drivers/fpga/Kconfig                  |  7 ++++
 drivers/fpga/Makefile                 |  1 +
 drivers/fpga/altera-pr-ip-core-plat.c | 65 +++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 drivers/fpga/altera-pr-ip-core-plat.c

Comments

kernel test robot Feb. 26, 2017, 10:51 p.m. UTC | #1

Hi Matthew,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.10]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/matthew-gerlach-linux-intel-com/Altera-Partial-Reconfiguration-IP/20170216-061352
config: um-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=um 

All errors (new ones prefixed by >>):

>> ERROR: "devm_ioremap_resource" [drivers/fpga/altera-pr-ip-core-plat.ko] undefined!
   ERROR: "devm_ioremap_resource" [drivers/auxdisplay/img-ascii-lcd.ko] undefined!

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Patch

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index a46c173..40f75d0 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -68,6 +68,13 @@  config ALTERA_PR_IP_CORE
         help
           Core driver support for Altera Partial Reconfiguration IP component
 
+config ALTERA_PR_IP_CORE_PLAT
+	tristate "Platform support of Altera Partial Reconfiguration IP Core"
+	depends on ALTERA_PR_IP_CORE && OF
+	help
+	  Platform driver support for Altera Partial Reconfiguration IP
+	  component
+
 endif # FPGA
 
 endmenu
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 82693d2..5b8ae2b 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -10,6 +10,7 @@  obj-$(CONFIG_FPGA_MGR_SOCFPGA)		+= socfpga.o
 obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10)	+= socfpga-a10.o
 obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA)	+= zynq-fpga.o
 obj-$(CONFIG_ALTERA_PR_IP_CORE)         += altera-pr-ip-core.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT)    += altera-pr-ip-core-plat.o
 
 # FPGA Bridge Drivers
 obj-$(CONFIG_FPGA_BRIDGE)		+= fpga-bridge.o
diff --git a/drivers/fpga/altera-pr-ip-core-plat.c b/drivers/fpga/altera-pr-ip-core-plat.c
new file mode 100644
index 0000000..1c3e4b5
--- /dev/null
+++ b/drivers/fpga/altera-pr-ip-core-plat.c
@@ -0,0 +1,65 @@ 
+/*
+ * Driver for Altera Partial Reconfiguration IP Core
+ *
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * Based on socfpga-a10.c Copyright (C) 2015-2016 Altera Corporation
+ *  by Alan Tull <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "altera-pr-ip-core.h"
+#include <linux/module.h>
+#include <linux/of_device.h>
+
+static int alt_pr_platform_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	void __iomem *reg_base;
+	struct resource *res;
+
+	/* First mmio base is for register access */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	reg_base = devm_ioremap_resource(dev, res);
+
+	if (IS_ERR(reg_base))
+		return PTR_ERR(reg_base);
+
+	return alt_pr_probe(dev, reg_base);
+}
+
+static int alt_pr_platform_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+
+	return alt_pr_remove(dev);
+}
+
+static const struct of_device_id alt_pr_of_match[] = {
+	{ .compatible = "altr,pr-ip-core", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, alt_pr_of_match);
+
+static struct platform_driver alt_pr_platform_driver = {
+	.probe = alt_pr_platform_probe,
+	.remove = alt_pr_platform_remove,
+	.driver = {
+		.name	= "alt_pr_ip_core",
+		.of_match_table = alt_pr_of_match,
+	},
+};
+
+module_platform_driver(alt_pr_platform_driver);