On 14.01.22 09:47, Ahmad Fatoum wrote:
> From: Michael Riesch <[email protected]>
>
> We've so far relied on GPIO controllers being named "gpioX", while the
> binding mandates gpio controllers being just called "gpio". This already
> broke rk3288 support and rk3568.dtsi upstream also differs from the
> version in barebox' arch/arm/dts in that regard.
>
> Instead, do like Linux does and use the alias to match the controllers to
> the GPIO banks with a fallback to probe order.
>
> Fixes: 3f2f5980d517 ("dts: update to v5.16-rc1")
> Signed-off-by: Michael Riesch <[email protected]>
> [afa: drop strncmp in favor of id comparison, reword commit message]
> Signed-off-by: Ahmad Fatoum <[email protected]>
@Sascha, can this go into a master? V7 Rockchip boards should be broken
without this.
> ---
> drivers/pinctrl/pinctrl-rockchip.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-rockchip.c
> b/drivers/pinctrl/pinctrl-rockchip.c
> index 5cf77c58b218..ea748b600419 100644
> --- a/drivers/pinctrl/pinctrl-rockchip.c
> +++ b/drivers/pinctrl/pinctrl-rockchip.c
> @@ -877,18 +877,24 @@ static struct rockchip_pin_ctrl
> *rockchip_pinctrl_get_soc_data(
> struct rockchip_pin_bank *bank;
> char *name;
> int grf_offs, pmu_offs, drv_grf_offs, drv_pmu_offs, i, j;
> + int gpio = 0;
>
> match = of_match_node(rockchip_pinctrl_dt_match, node);
> ctrl = (struct rockchip_pin_ctrl *)match->data;
>
> for_each_child_of_node(node, np) {
> + int id;
> +
> if (!of_find_property(np, "gpio-controller", NULL))
> continue;
>
> + id = of_alias_get_id(np, "gpio");
> + if (id < 0)
> + id = gpio++;
> +
> bank = ctrl->pin_banks;
> for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
> - name = bank->name;
> - if (!strncmp(name, np->name, strlen(name))) {
> + if (bank->bank_num == id) {
> bank->of_node = np;
> if (!rockchip_get_bank_data(bank, dev))
> bank->valid = true;
>
--
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