Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
new file mode 100644
index 0000000000..aa8096ecb2
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_device.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * omap_device headers
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Paul Walmsley
+ *
+ * Developed in collaboration with (alphabetical order): Benoit
+ * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram
+ * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard
+ * Woodruff
+ *
+ * This type of functionality should be implemented as a proper
+ * omap_bus/omap_device in Linux.
+ *
+ * omap_device differs from omap_hwmod in that it includes external
+ * (e.g., board- and system-level) integration details.  omap_hwmod
+ * stores hardware data that is invariant for a given OMAP chip.
+ */
+#ifndef __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
+#define __ARCH_ARM_PLAT_OMAP_INCLUDE_MACH_OMAP_DEVICE_H
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include "omap_hwmod.h"
+
+/* omap_device._state values */
+#define OMAP_DEVICE_STATE_UNKNOWN	0
+#define OMAP_DEVICE_STATE_ENABLED	1
+#define OMAP_DEVICE_STATE_IDLE		2
+#define OMAP_DEVICE_STATE_SHUTDOWN	3
+
+/* omap_device.flags values */
+#define OMAP_DEVICE_SUSPENDED		BIT(0)
+
+/**
+ * struct omap_device - omap_device wrapper for platform_devices
+ * @pdev: platform_device
+ * @hwmods: (one .. many per omap_device)
+ * @hwmods_cnt: ARRAY_SIZE() of @hwmods
+ * @_state: one of OMAP_DEVICE_STATE_* (see above)
+ * @flags: device flags
+ * @_driver_status: one of BUS_NOTIFY_*_DRIVER from <linux/device.h>
+ *
+ * Integrates omap_hwmod data into Linux platform_device.
+ *
+ * Field names beginning with underscores are for the internal use of
+ * the omap_device code.
+ *
+ */
+struct omap_device {
+	struct platform_device		*pdev;
+	struct omap_hwmod		**hwmods;
+	unsigned long			_driver_status;
+	u8				hwmods_cnt;
+	u8				_state;
+	u8                              flags;
+};
+
+/* Device driver interface (call via platform_data fn ptrs) */
+
+int omap_device_enable(struct platform_device *pdev);
+int omap_device_idle(struct platform_device *pdev);
+
+/* Other */
+
+int omap_device_assert_hardreset(struct platform_device *pdev,
+				 const char *name);
+int omap_device_deassert_hardreset(struct platform_device *pdev,
+				 const char *name);
+
+/* Get omap_device pointer from platform_device pointer */
+static inline struct omap_device *to_omap_device(struct platform_device *pdev)
+{
+	return pdev ? pdev->archdata.od : NULL;
+}
+#endif