[PATCH] i2c: omap: fix fclk_rate for ti,omap4-i2c

Sascha Hauer s.hauer at pengutronix.de
Wed Dec 10 23:59:48 PST 2014


On Wed, Dec 10, 2014 at 07:49:28AM +0100, Jan Weitzel wrote:
> "ti,am33xx" and "ti,omap4" use "ti,omap4-i2c" with different fclk_rate.
> By now set it according to the used cpu compatible.
> 
> Signed-off-by: Jan Weitzel <j.weitzel at phytec.de>
> ---
>  drivers/i2c/busses/i2c-omap.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index 094f591..d2254d4 100644
> --- a/drivers/i2c/busses/i2c-omap.c
> +++ b/drivers/i2c/busses/i2c-omap.c
> @@ -1015,6 +1015,13 @@ i2c_omap_probe(struct device_d *pdev)
>  	i2c_omap->reg_shift = (i2c_data->flags >>
>  					OMAP_I2C_FLAG_BUS_SHIFT__SHIFT) & 3;
>  
> +	if (!i2c_data->fclk_rate) {
> +		if (of_machine_is_compatible("ti,am33xx"))
> +			i2c_data->fclk_rate = am33xx_data.fclk_rate;
> +		if (of_machine_is_compatible("ti,omap4"))
> +			i2c_data->fclk_rate = omap4_data.fclk_rate;
> +	}

Can't we just do a:

	if (of_machine_is_compatible("ti,am33xx"))
		i2c_omap->data = &am33xx_data;
	if (of_machine_is_compatible("ti,omap4"))
		i2c_omap->data = &omap4_data;

Instead?

With that we could also remove the nonworking omap4_of_data.

Sascha


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