From: kmpark@infradead.org (Kyungmin Park)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 3/3] ARM: S5PC210: Add I2C0/I2C1/I2C2 support
Date: Mon, 02 Aug 2010 09:25:45 +0900 [thread overview]
Message-ID: <20100802002545.GA32265@july> (raw)
From: Kyungmin Park <kyungmin.park@samsung.com>
Configure proper mux pins and define i2c0/i2c1/i2c2.
v1:
Use the linux/gpio.h
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/mach-s5pv310/Kconfig | 10 ++++++++++
arch/arm/mach-s5pv310/Makefile | 5 +++++
arch/arm/mach-s5pv310/setup-i2c0.c | 12 ++++++++++--
arch/arm/mach-s5pv310/setup-i2c1.c | 25 +++++++++++++++++++++++++
arch/arm/mach-s5pv310/setup-i2c2.c | 25 +++++++++++++++++++++++++
5 files changed, 75 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mach-s5pv310/setup-i2c1.c
create mode 100644 arch/arm/mach-s5pv310/setup-i2c2.c
diff --git a/arch/arm/mach-s5pv310/Kconfig b/arch/arm/mach-s5pv310/Kconfig
index 2fe8149..faa3436 100644
--- a/arch/arm/mach-s5pv310/Kconfig
+++ b/arch/arm/mach-s5pv310/Kconfig
@@ -15,6 +15,16 @@ config CPU_S5PV310
help
Enable S5PV310 CPU support
+config S5PV310_SETUP_I2C1
+ bool
+ help
+ Common setup code for i2c bus 1.
+
+config S5PV310_SETUP_I2C2
+ bool
+ help
+ Common setup code for i2c bus 2.
+
# machine support
config MACH_SMDKV310
diff --git a/arch/arm/mach-s5pv310/Makefile b/arch/arm/mach-s5pv310/Makefile
index 5b52132..82dbbaa 100644
--- a/arch/arm/mach-s5pv310/Makefile
+++ b/arch/arm/mach-s5pv310/Makefile
@@ -23,3 +23,8 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
obj-$(CONFIG_MACH_SMDKV310) += mach-smdkv310.o
obj-$(CONFIG_MACH_UNIVERSAL) += mach-universal.o
+
+# device support
+
+obj-$(CONFIG_S5PV310_SETUP_I2C1) += setup-i2c1.o
+obj-$(CONFIG_S5PV310_SETUP_I2C2) += setup-i2c2.o
diff --git a/arch/arm/mach-s5pv310/setup-i2c0.c b/arch/arm/mach-s5pv310/setup-i2c0.c
index d4f5a81..a29f5e6 100644
--- a/arch/arm/mach-s5pv310/setup-i2c0.c
+++ b/arch/arm/mach-s5pv310/setup-i2c0.c
@@ -1,4 +1,5 @@
-/* linux/arch/arm/mach-s5pv210/setup-i2c0.c
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c0.c
*
* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
@@ -14,7 +15,14 @@
struct platform_device; /* don't need the contents */
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
void s3c_i2c0_cfg_gpio(struct platform_device *dev)
{
-/* will be implemented later */
+ s3c_gpio_cfgpin(S5PV310_GPD1(0), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV310_GPD1(0), S3C_GPIO_PULL_UP);
+ s3c_gpio_cfgpin(S5PV310_GPD1(1), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV310_GPD1(1), S3C_GPIO_PULL_UP);
}
diff --git a/arch/arm/mach-s5pv310/setup-i2c1.c b/arch/arm/mach-s5pv310/setup-i2c1.c
new file mode 100644
index 0000000..8ce6ebd
--- /dev/null
+++ b/arch/arm/mach-s5pv310/setup-i2c1.c
@@ -0,0 +1,25 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c1.c
+ *
+ * Copyright (C) 2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C1 GPIO configuration.
+ *
+ * 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.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c1_cfg_gpio(struct platform_device *dev)
+{
+ s3c_gpio_cfgpin(S5PV310_GPD1(2), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV310_GPD1(2), S3C_GPIO_PULL_UP);
+ s3c_gpio_cfgpin(S5PV310_GPD1(3), S3C_GPIO_SFN(2));
+ s3c_gpio_setpull(S5PV310_GPD1(3), S3C_GPIO_PULL_UP);
+}
diff --git a/arch/arm/mach-s5pv310/setup-i2c2.c b/arch/arm/mach-s5pv310/setup-i2c2.c
new file mode 100644
index 0000000..dcae14f
--- /dev/null
+++ b/arch/arm/mach-s5pv310/setup-i2c2.c
@@ -0,0 +1,25 @@
+/*
+ * linux/arch/arm/mach-s5pv310/setup-i2c2.c
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ *
+ * I2C2 GPIO configuration.
+ *
+ * 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.
+*/
+
+struct platform_device; /* don't need the contents */
+
+#include <linux/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c2_cfg_gpio(struct platform_device *dev)
+{
+ s3c_gpio_cfgpin(S5PV310_GPA0(6), S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(S5PV310_GPA0(6), S3C_GPIO_PULL_UP);
+ s3c_gpio_cfgpin(S5PV310_GPA0(7), S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(S5PV310_GPA0(7), S3C_GPIO_PULL_UP);
+}
--
1.5.3.3
next reply other threads:[~2010-08-02 0:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 0:25 Kyungmin Park [this message]
2010-08-03 4:50 ` [PATCH v2 3/3] ARM: S5PC210: Add I2C0/I2C1/I2C2 support Kukjin Kim
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