linux-kernel - [PATCH v4 3/5] ARM: ep93xx: ts72xx: Rewrite map IO code to be reusable

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Date:   Fri,  1 Dec 2017 00:51:38 +0100
From:   Lukasz Majewski <lukma@...x.de>
To:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Arnd Bergmann <arnd@...db.de>, arndbergmann@...il.com,
        Hartley Sweeten <hsweeten@...ionengravers.com>
Cc:     Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Olof Johansson <olof@...om.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        Lukasz Majewski <lukma@...x.de>
Subject: [PATCH v4 3/5] ARM: ep93xx: ts72xx: Rewrite map IO code to be reusable

The map IO common code has been excluded to be reused by other ts72xx
clones.

Signed-off-by: Lukasz Majewski <lukma@...x.de>
Acked-by: Alexander Sverdlin <alexander.sverdlin@...il.com>
---
Changes for v2:
- New patch
Changes for v3:
- None
Changes for v4:
- None
---
 arch/arm/mach-ep93xx/ts72xx.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 141ae4c65a81..19b23c9a2efa 100644
--- a/arch/arm/mach-ep93xx/ts72xx.c
+++ b/arch/arm/mach-ep93xx/ts72xx.c
@@ -33,11 +33,6 @@
 
 static struct map_desc ts72xx_io_desc[] __initdata = {
 	{
-		.virtual	= (unsigned long)TS72XX_MODEL_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
-		.length		= TS72XX_MODEL_SIZE,
-		.type		= MT_DEVICE,
-	}, {
 		.virtual	= (unsigned long)TS72XX_OPTIONS_VIRT_BASE,
 		.pfn		= __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
 		.length		= TS72XX_OPTIONS_SIZE,
@@ -50,12 +45,26 @@ static struct map_desc ts72xx_io_desc[] __initdata = {
 	}
 };
 
-static void __init ts72xx_map_io(void)
+static struct map_desc ts72xx_common_io_desc[] __initdata = {
+	{
+		.virtual	= (unsigned long)TS72XX_MODEL_VIRT_BASE,
+		.pfn		= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
+		.length		= TS72XX_MODEL_SIZE,
+		.type		= MT_DEVICE,
+	}
+};
+
+void __init ts72xx_common_map_io(void)
 {
 	ep93xx_map_io();
-	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
+	iotable_init(ts72xx_common_io_desc, ARRAY_SIZE(ts72xx_common_io_desc));
 }
 
+static void __init ts72xx_map_io(void)
+{
+	ts72xx_common_map_io();
+	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
+}
 
 /*************************************************************************
  * NAND flash
-- 
2.11.0