From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bo Shen Subject: [PATCH v2] i2c: change the id to let the i2c-gpio work Date: Fri, 12 Oct 2012 17:42:51 +0800 Message-ID: <1350034971-1050-1-git-send-email-voice.shen@atmel.com> Return-path: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: hskinnemoen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org, broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org, Bo Shen List-Id: linux-i2c@vger.kernel.org The i2c-gpio driver will turn the platform device ID to busnum. When using platfrom device ID as -1, it means dynamically assigned the busnum. When writing code, we need to make sure the busnum, and call i2c_register_board_info(int busnum, ...) to register device if using -1, we do not know the value of busnum. In order to solve this issue, set the platform device ID as a fix number Here using 0 to match the busnum used in i2c_regsiter_board_info(). Signed-off-by: Bo Shen --- Change since v1 Make the commit message more clear --- arch/arm/mach-at91/at91sam9260_devices.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index 0f24cfb..805ef95 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -389,7 +389,7 @@ static struct i2c_gpio_platform_data pdata = { static struct platform_device at91sam9260_twi_device = { .name = "i2c-gpio", - .id = -1, + .id = 0, .dev.platform_data = &pdata, }; -- 1.7.9.5