[U-Boot] [PATCH] i2c: Instantiate I2C controllers when selected

[Heiko Schocher <hs@denx.de>]

Hello Michal,

Am 27.10.2015 um 16:02 schrieb Michal Simek:
> Do not enable both I2C controllers by default. Enable them only when
> they are selected.
>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> ---
>
>   drivers/i2c/zynq_i2c.c | 4 ++++
>   1 file changed, 4 insertions(+)

Thanks!

I will accept this patch, but it is a fix for the old style
I2C driver. I would prefer a patch, which converts this driver
to DM ;-)

What do you mean with "enabled"? The old style i2c driver,
does not initialize (call zynq_i2c_init()) the i2c driver, until
it is used ... nevertheless, you save some bytes, which is always
good.

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

bye,
Heiko
>
> diff --git a/drivers/i2c/zynq_i2c.c b/drivers/i2c/zynq_i2c.c
> index b3264af4526e..380863bde148 100644
> --- a/drivers/i2c/zynq_i2c.c
> +++ b/drivers/i2c/zynq_i2c.c
> @@ -297,11 +297,15 @@ static unsigned int zynq_i2c_set_bus_speed(struct i2c_adapter *adap,
>   	return 0;
>   }
>
> +#ifdef CONFIG_ZYNQ_I2C0
>   U_BOOT_I2C_ADAP_COMPLETE(zynq_0, zynq_i2c_init, zynq_i2c_probe, zynq_i2c_read,
>   			 zynq_i2c_write, zynq_i2c_set_bus_speed,
>   			 CONFIG_SYS_I2C_ZYNQ_SPEED, CONFIG_SYS_I2C_ZYNQ_SLAVE,
>   			 0)
> +#endif
> +#ifdef CONFIG_ZYNQ_I2C1
>   U_BOOT_I2C_ADAP_COMPLETE(zynq_1, zynq_i2c_init, zynq_i2c_probe, zynq_i2c_read,
>   			 zynq_i2c_write, zynq_i2c_set_bus_speed,
>   			 CONFIG_SYS_I2C_ZYNQ_SPEED, CONFIG_SYS_I2C_ZYNQ_SLAVE,
>   			 1)
> +#endif
>

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