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Date:	Wed, 8 Sep 2010 13:34:24 +0800
From:	Haojian Zhuang <haojian.zhuang@...il.com>
To:	"Mark F. Brown" <mark.brown314@...il.com>
Cc:	Eric Miao <eric.y.miao@...il.com>,
	Haojian Zhuang <haojian.zhuang@...vell.com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] ARM: pxa168/teton bga: add board support for i2c and rtc-ds1337

On Wed, Sep 8, 2010 at 10:56 AM, Mark F. Brown <mark.brown314@...il.com> wrote:
> Signed-off-by: Mark F. Brown <mark.brown314@...il.com>
> ---
>  arch/arm/mach-mmp/teton_bga.c |   10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
> index bbeda5c..8e5801c 100644
> --- a/arch/arm/mach-mmp/teton_bga.c
> +++ b/arch/arm/mach-mmp/teton_bga.c
> @@ -22,6 +22,7 @@
>  #include <mach/gpio.h>
>  #include <linux/input.h>
>  #include <plat/pxa27x_keypad.h>
> +#include <linux/i2c.h>
>
>  #include "common.h"
>
> @@ -35,6 +36,10 @@ static unsigned long teton_bga_pin_config[] __initdata = {
>        GPIO110_KP_MKIN0,
>        GPIO111_KP_MKOUT7,
>        GPIO112_KP_MKOUT6,
> +
> +       /* i2c bus */
> +       GPIO105_CI2C_SDA,
> +       GPIO106_CI2C_SCL,
>  };
>
>  static unsigned int teton_bga_matrix_key_map[] = {
> @@ -52,6 +57,10 @@ static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
>        .debounce_interval      = 30,
>  };
>
> +static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
> +       { I2C_BOARD_INFO("ds1337", 0x68), },
> +};
> +

I don't have the schematic of teton. But RTC chips should always has
an irq pin. Is it also connected in your platform?

>  static void __init teton_bga_init(void)
>  {
>        mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
> @@ -59,6 +68,7 @@ static void __init teton_bga_init(void)
>        /* on-chip devices */
>        pxa168_add_uart(1);
>        pxa168_add_keypad(&teton_bga_keypad_info);
> +       pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
>  }
>
>  MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
> --
> 1.7.0.4
>
> --
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