[PATCH for 4.9 58/98] ARM: davinci: add skeleton for pdata-quirks

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From: Kevin Hilman <khilman@xxxxxxxxxxxx>

[ Upstream commit 9c9b1bc25291e275b04f758f2549c81e092954f5 ]

Add skeleton pdata-quirks for davinci.

Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxx>
[nsekhar@xxxxxx: move changes to build pdata-quirks.c and call
		 to pdata_quirks_init() to this patch]
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>

Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
 arch/arm/mach-davinci/Makefile              |  2 +-
 arch/arm/mach-davinci/da8xx-dt.c            |  1 +
 arch/arm/mach-davinci/include/mach/common.h |  2 ++
 arch/arm/mach-davinci/pdata-quirks.c        | 39 +++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-davinci/pdata-quirks.c

diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index da4c336..90d2e6e 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -21,7 +21,7 @@ obj-$(CONFIG_AINTC)			+= irq.o
 obj-$(CONFIG_CP_INTC)			+= cp_intc.o
 
 # Board specific
-obj-$(CONFIG_MACH_DA8XX_DT)		+= da8xx-dt.o
+obj-$(CONFIG_MACH_DA8XX_DT)		+= da8xx-dt.o pdata-quirks.o
 obj-$(CONFIG_MACH_DAVINCI_EVM)  	+= board-dm644x-evm.o
 obj-$(CONFIG_MACH_SFFSDR)		+= board-sffsdr.o
 obj-$(CONFIG_MACH_NEUROS_OSD2)		+= board-neuros-osd2.o
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index aed44dc..1b6a88a 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -47,6 +47,7 @@ static void __init da850_init_machine(void)
 {
 	of_platform_default_populate(NULL, da850_auxdata_lookup, NULL);
 	davinci_pm_init();
+	pdata_quirks_init();
 }
 
 static const char *const da850_boards_compat[] __initconst = {
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index 0b3c169..037aa66 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -102,6 +102,8 @@ int davinci_pm_init(void);
 static inline int davinci_pm_init(void) { return 0; }
 #endif
 
+void __init pdata_quirks_init(void);
+
 #define SRAM_SIZE	SZ_128K
 
 #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */
diff --git a/arch/arm/mach-davinci/pdata-quirks.c b/arch/arm/mach-davinci/pdata-quirks.c
new file mode 100644
index 0000000..5b57da4
--- /dev/null
+++ b/arch/arm/mach-davinci/pdata-quirks.c
@@ -0,0 +1,39 @@
+/*
+ * Legacy platform_data quirks
+ *
+ * Copyright (C) 2016 BayLibre, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+
+#include <mach/common.h>
+
+struct pdata_init {
+	const char *compatible;
+	void (*fn)(void);
+};
+
+static void pdata_quirks_check(struct pdata_init *quirks)
+{
+	while (quirks->compatible) {
+		if (of_machine_is_compatible(quirks->compatible)) {
+			if (quirks->fn)
+				quirks->fn();
+			break;
+		}
+		quirks++;
+	}
+}
+
+static struct pdata_init pdata_quirks[] __initdata = {
+	{ /* sentinel */ },
+};
+
+void __init pdata_quirks_init(void)
+{
+	pdata_quirks_check(pdata_quirks);
+}
-- 
2.9.3




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