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authorJoonyoung Shim <jy0922.shim@samsung.com>2010-08-06 19:26:10 +0900
committerKukjin Kim <kgene.kim@samsung.com>2010-08-06 21:27:50 +0900
commit995c48adde09e04298036501df9dac87661fa66c (patch)
tree6c5bf7939dac0c6a5f233c6095ad2d68760606ca /arch
parent929343ef840051b102b67ad1bc8748dbe7c7ce13 (diff)
downloadop-kernel-dev-995c48adde09e04298036501df9dac87661fa66c.zip
op-kernel-dev-995c48adde09e04298036501df9dac87661fa66c.tar.gz
ARM: SAMSUNG: Add keypad device support
This patch adds Samsung keypad device definition for Samsung SoCs. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-samsung/Kconfig5
-rw-r--r--arch/arm/plat-samsung/Makefile1
-rw-r--r--arch/arm/plat-samsung/dev-keypad.c50
-rw-r--r--arch/arm/plat-samsung/include/plat/devs.h2
-rw-r--r--arch/arm/plat-samsung/include/plat/keypad.h13
5 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 15ef1e4..4529dd6 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -237,6 +237,11 @@ config SAMSUNG_DEV_TS
help
Common in platform device definitions for touchscreen device
+config SAMSUNG_DEV_KEYPAD
+ bool
+ help
+ Compile in platform device definitions for keypad
+
# DMA
config S3C_DMA
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 75b91b4..8594fe7 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -52,6 +52,7 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o
obj-$(CONFIG_SAMSUNG_DEV_ADC) += dev-adc.o
obj-$(CONFIG_SAMSUNG_DEV_IDE) += dev-ide.o
obj-$(CONFIG_SAMSUNG_DEV_TS) += dev-ts.o
+obj-$(CONFIG_SAMSUNG_DEV_KEYPAD) += dev-keypad.o
# DMA support
diff --git a/arch/arm/plat-samsung/dev-keypad.c b/arch/arm/plat-samsung/dev-keypad.c
new file mode 100644
index 0000000..677c2d7
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-keypad.c
@@ -0,0 +1,50 @@
+/*
+ * linux/arch/arm/plat-samsung/dev-keypad.c
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <mach/irqs.h>
+#include <mach/map.h>
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/keypad.h>
+
+static struct resource samsung_keypad_resources[] = {
+ [0] = {
+ .start = SAMSUNG_PA_KEYPAD,
+ .end = SAMSUNG_PA_KEYPAD + 0x20 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_KEYPAD,
+ .end = IRQ_KEYPAD,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device samsung_device_keypad = {
+ .name = "samsung-keypad",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(samsung_keypad_resources),
+ .resource = samsung_keypad_resources,
+};
+
+void __init samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd)
+{
+ struct samsung_keypad_platdata *npd;
+
+ npd = s3c_set_platdata(pd, sizeof(struct samsung_keypad_platdata),
+ &samsung_device_keypad);
+
+ if (!npd->cfg_gpio)
+ npd->cfg_gpio = samsung_keypad_cfg_gpio;
+}
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 097d0e4..4c31d32 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -102,6 +102,8 @@ extern struct platform_device s5pc100_device_iis0;
extern struct platform_device s5pc100_device_iis1;
extern struct platform_device s5pc100_device_iis2;
+extern struct platform_device samsung_device_keypad;
+
/* s3c2440 specific devices */
#ifdef CONFIG_CPU_S3C2440
diff --git a/arch/arm/plat-samsung/include/plat/keypad.h b/arch/arm/plat-samsung/include/plat/keypad.h
index 3a70c12..b59a648 100644
--- a/arch/arm/plat-samsung/include/plat/keypad.h
+++ b/arch/arm/plat-samsung/include/plat/keypad.h
@@ -40,4 +40,17 @@ struct samsung_keypad_platdata {
void (*cfg_gpio)(unsigned int rows, unsigned int cols);
};
+/**
+ * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device.
+ * @pd: Platform data to register to device.
+ *
+ * Register the given platform data for use with Samsung Keypad device.
+ * The call will copy the platform data, so the board definitions can
+ * make the structure itself __initdata.
+ */
+extern void samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd);
+
+/* defined by architecture to configure gpio. */
+extern void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols);
+
#endif /* __PLAT_SAMSUNG_KEYPAD_H */
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