于 2013年07月02日 17:56, Mark Rutland 写道:
On Tue, Jul 02, 2013 at 07:30:26AM +0100, Huang Shijie wrote:
> The imx6 uart can supports the DMA, imx uart driver has added a new
> compatible property for the imx6 uart.
>
> In order to enable the DMA for some uart port in imx6, we rename the
> uart's compatible property to "fsl,imx6-uart".
Doesn't this change break using these dts with an older kernel? You
is it reasonable to use a new dts with an old kernel?
remove the "fsl,imx21-uart" string older kernels understand.
Given you already had "fsl,imx6q-uart" and "fsl,imx6sl-uart" strings,
would it not have made more sense to just add these to the driver?
I think it's not a good idea.
Shawn, what's your opinion about this?
thanks
Huang Shijie
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
