ARM: s3c: move into a common directory

s3c24xx and s3c64xx have a lot in common, but are split across three
separate directories, which makes the interaction of the header files
more complicated than necessary.

Move all three directories into a new mach-s3c, with a minimal
set of changes to each file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX
       headers to new files, remove plat-samsung from MAINTAINERS]
Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c/include/plat/wakeup-mask.h b/arch/arm/mach-s3c/include/plat/wakeup-mask.h
new file mode 100644
index 000000000000..630909e6630b
--- /dev/null
+++ b/arch/arm/mach-s3c/include/plat/wakeup-mask.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2010 Ben Dooks <ben-linux@fluff.org>
+ *
+ * Support for wakeup mask interrupts on newer SoCs
+ */
+
+#ifndef __PLAT_WAKEUP_MASK_H
+#define __PLAT_WAKEUP_MASK_H __file__
+
+/* if no irq yet defined, but still want to mask */
+#define NO_WAKEUP_IRQ (0x90000000)
+
+/**
+ * struct samsung_wakeup_mask - wakeup mask information
+ * @irq: The interrupt associated with this wakeup.
+ * @bit: The bit, as a (1 << bitno) controlling this source.
+ */ 
+struct samsung_wakeup_mask {
+	unsigned int	irq;
+	u32		bit;
+};
+
+/**
+ * samsung_sync_wakemask - sync wakeup mask information for pm
+ * @reg: The register that is used.
+ * @masks: The list of masks to use.
+ * @nr_masks: The number of entries pointed to buy @masks.
+ *
+ * Synchronise the wakeup mask information at suspend time from the list
+ * of interrupts and control bits in @masks. We do this at suspend time
+ * as overriding the relevant irq chips is harder and the register is only
+ * required to be correct before we enter sleep.
+ */
+extern void samsung_sync_wakemask(void __iomem *reg,
+				  const struct samsung_wakeup_mask *masks,
+				  int nr_masks);
+
+#endif /* __PLAT_WAKEUP_MASK_H */