[U-Boot] [PATCH] dm: i2c: Add compatibility functions for dm_i2c_reg_read/write()

[Heiko Schocher <hs@denx.de>]

Hello Simon,

Am 16.05.2015 23:01, schrieb Simon Glass:
> Add the legacy i2c_reg_read/write() functions to the compatibility layer
> so that they can be used when CONFIG_DM_I2C_COMPAT is defined.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>   drivers/i2c/i2c-uclass-compat.c | 21 +++++++++++++++++++++
>   include/i2c.h                   |  6 ++++++
>   2 files changed, 27 insertions(+)

Acked-by: Heiko Schocher <hs@denx.de>

Thanks!

bye,
Heiko

>
> diff --git a/drivers/i2c/i2c-uclass-compat.c b/drivers/i2c/i2c-uclass-compat.c
> index 223f238..5606d1f 100644
> --- a/drivers/i2c/i2c-uclass-compat.c
> +++ b/drivers/i2c/i2c-uclass-compat.c
> @@ -106,3 +106,24 @@ void board_i2c_init(const void *blob)
>   {
>   	/* Nothing to do here - the init happens through driver model */
>   }
> +
> +uint8_t i2c_reg_read(uint8_t chip_addr, uint8_t offset)
> +{
> +	struct udevice *dev;
> +	int ret;
> +
> +	ret = i2c_compat_get_device(chip_addr, 1, &dev);
> +	if (ret)
> +		return 0xff;
> +	return dm_i2c_reg_read(dev, offset);
> +}
> +
> +void i2c_reg_write(uint8_t chip_addr, uint8_t offset, uint8_t val)
> +{
> +	struct udevice *dev;
> +	int ret;
> +
> +	ret = i2c_compat_get_device(chip_addr, 1, &dev);
> +	if (!ret)
> +		dm_i2c_reg_write(dev, offset, val);
> +}
> diff --git a/include/i2c.h b/include/i2c.h
> index ddfebc4..9300d97 100644
> --- a/include/i2c.h
> +++ b/include/i2c.h
> @@ -284,6 +284,12 @@ void i2c_init(int speed, int slaveaddr);
>    */
>   void board_i2c_init(const void *blob);
>
> +/*
> + * Compatibility functions for driver model.
> + */
> +uint8_t i2c_reg_read(uint8_t addr, uint8_t reg);
> +void i2c_reg_write(uint8_t addr, uint8_t reg, uint8_t val);
> +
>   #endif
>
>   /*
>

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