From: Peng Hao <peng.hao2@zte.com.cn>
To: gregkh@linuxfoundation.org, arnd@arndb.de, andy.shevchenko@gmail.com
Cc: linux-kernel@vger.kernel.org, Peng Hao <peng.hao2@zte.com.cn>
Subject: [PATCH 3/6] misc/pvpanic: add API for pvpanic driver framework
Date: Tue, 22 Jan 2019 03:25:08 +0800 [thread overview]
Message-ID: <1548098711-52497-3-git-send-email-peng.hao2@zte.com.cn> (raw)
In-Reply-To: <1548098711-52497-1-git-send-email-peng.hao2@zte.com.cn>
Add pvpanic_add/remove_device API.
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
drivers/misc/pvpanic/pvpanic.c | 32 ++++++++++++++++++++++++++++++++
drivers/misc/pvpanic/pvpanic.h | 14 ++++++++++++++
2 files changed, 46 insertions(+)
create mode 100644 drivers/misc/pvpanic/pvpanic.h
diff --git a/drivers/misc/pvpanic/pvpanic.c b/drivers/misc/pvpanic/pvpanic.c
index 227ab4e..f842ee4 100644
--- a/drivers/misc/pvpanic/pvpanic.c
+++ b/drivers/misc/pvpanic/pvpanic.c
@@ -48,6 +48,38 @@
.priority = 1, /* let this called before broken drm_fb_helper */
};
+int pvpanic_add_device(struct device *dev, struct resource *res)
+{
+ struct platform_device *pdev;
+ int ret;
+
+ pdev = platform_device_alloc("pvpanic", -1);
+ if (!pdev)
+ return -ENOMEM;
+
+ pdev->dev.parent = dev;
+
+ ret = platform_device_add_resources(pdev, res, 1);
+ if (ret)
+ goto err;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto err;
+ pvpanic_data.pdev = pdev;
+
+ return 0;
+err:
+ platform_device_put(pdev);
+ return -1;
+}
+
+void pvpanic_remove_device(void)
+{
+ platform_device_unregister(pvpanic_data.pdev);
+ pvpanic_data.pdev = NULL;
+}
+
static int pvpanic_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
diff --git a/drivers/misc/pvpanic/pvpanic.h b/drivers/misc/pvpanic/pvpanic.h
new file mode 100644
index 0000000..a72ca59
--- /dev/null
+++ b/drivers/misc/pvpanic/pvpanic.h
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* pvpanic driver framework header file
+ *
+ * Copyright (C) 2019 ZTE Ltd.
+ * Author: Peng Hao <peng.hao2@zte.com.cn>
+ */
+
+#ifndef __DRIVERS_MISC_PVPANIC_H
+#define __DRIVERS_MISC_PVPANIC_H
+
+extern int pvpanic_add_device(struct device *dev, struct resource *res);
+extern void pvpanic_remove_device(void);
+
+#endif
--
1.8.3.1
next prev parent reply other threads:[~2019-01-21 11:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-21 19:25 [PATCH 1/6] misc/pvpanic : preparing for pvpanic driver framework Peng Hao
2019-01-21 19:25 ` [PATCH 2/6] misc/pvpanic: Add " Peng Hao
2019-01-22 9:37 ` Greg KH
2019-01-21 19:25 ` Peng Hao [this message]
2019-01-22 9:38 ` [PATCH 3/6] misc/pvpanic: add API for " Greg KH
2019-01-21 19:25 ` [PATCH 4/6] misc/pvpanic : add pvpanic acpi driver Peng Hao
2019-01-22 9:40 ` Greg KH
2019-01-21 19:25 ` [PATCH 5/6] misc/pvpanic: add pvpanic mmio driver Peng Hao
2019-01-22 9:40 ` Greg KH
2019-01-21 19:25 ` [PATCH 6/6] misc/pvpanic : add pvpanic pci driver Peng Hao
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