[PATCH 3/4] ARM: davinci: fix GPIO lookup for I2C

David Lechner david at lechnology.com
Thu Apr 26 18:43:04 PDT 2018


On 04/24/2018 09:35 AM, Sekhar Nori wrote:
> The GPIO chip is called davinci_gpio.0 in legacy mode. Fix it, so that
> I2C can correctly lookup the recovery gpios.
> 
> Note that it is the gpio-davinci driver that sets the gpiochip label to
> davinci_gpio.0.
> 
> Also, the I2C device uses an id of 1 on DM644x and DM355.
> 
> Fixes: e53537653791 ("i2c/ARM: davinci: Deep refactoring of I2C recovery")
> Signed-off-by: Sekhar Nori <nsekhar at ti.com>
> ---
>   arch/arm/mach-davinci/board-dm355-evm.c  | 6 +++---
>   arch/arm/mach-davinci/board-dm644x-evm.c | 6 +++---
>   2 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
> index cb30637d9eaf..14557f893798 100644
> --- a/arch/arm/mach-davinci/board-dm355-evm.c
> +++ b/arch/arm/mach-davinci/board-dm355-evm.c
> @@ -110,11 +110,11 @@ static struct platform_device davinci_nand_device = {
>   };
>   
>   static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
> -	.dev_id = "i2c_davinci",
> +	.dev_id = "i2c_davinci.1",
>   	.table = {
> -		GPIO_LOOKUP("davinci_gpio", 15, "sda",
> +		GPIO_LOOKUP("davinci_gpio.0", 15, "sda",
>   			    GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
> -		GPIO_LOOKUP("davinci_gpio", 14, "scl",
> +		GPIO_LOOKUP("davinci_gpio.0", 14, "scl",
>   			    GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
>   	},
>   };
> diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
> index 5bf024784738..5b0b95e04cac 100644
> --- a/arch/arm/mach-davinci/board-dm644x-evm.c
> +++ b/arch/arm/mach-davinci/board-dm644x-evm.c
> @@ -597,11 +597,11 @@ static struct i2c_board_info __initdata i2c_info[] =  {
>   };
>   
>   static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
> -	.dev_id = "i2c_davinci",
> +	.dev_id = "i2c_davinci.1",
>   	.table = {
> -		GPIO_LOOKUP("davinci_gpio", 44, "sda",
> +		GPIO_LOOKUP("davinci_gpio.0", 44, "sda",
>   			    GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
> -		GPIO_LOOKUP("davinci_gpio", 43, "scl",
> +		GPIO_LOOKUP("davinci_gpio.0", 43, "scl",
>   			    GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
>   	},
>   };
> 

Why not use the GPIO_TO_PIN() macro like the previous patches?





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