[PATCH v2 2/6] GPIO: xilinx: Add support for dual channel
Linus Walleij
linus.walleij at linaro.org
Mon Jun 17 15:44:37 EST 2013
On Mon, Jun 3, 2013 at 2:31 PM, Michal Simek <michal.simek at xilinx.com> wrote:
> Supporting the second channel in the driver.
> Offset is 0x8 and both channnels share the same
> IRQ.
>
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
>
> ---
> Changes in v2:
> - Use kernel doc format - suggested by Linus Walleij
> - Do not use __raw_readl/__raw_writel IO in this patch
> - Use of_property_read_u32 helper function
> - Use BIT()
> - Change patch subject
Patch is looking overall nice and improves the kernel so
applied.
But check this:
> @@ -202,6 +230,57 @@ static int xgpio_of_probe(struct device_node *np)
> np->full_name, status);
> return status;
> }
> +
> + pr_info("XGpio: %s: registered, base is %d\n", np->full_name,
> + chip->mmchip.gc.base);
> +
> + tree_info = of_get_property(np, "xlnx,is-dual", NULL);
> + if (tree_info && be32_to_cpup(tree_info)) {
Doesn't this work:
if (of_property_read_bool(np, "xlnx,is-dual")) {
(...)
?
Yours,
Linus Walleij
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