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arm64: dts: zcu100-revC: Give wifi some time after power-on
Somewhere along recent changes to power control of the wl1831, power-on became very unreliable on the Ultra96, failing like this: wl1271_sdio: probe of mmc2:0001:1 failed with error -16 wl1271_sdio: probe of mmc2:0001:2 failed with error -16 After playing with some dt parameters and comparing to other users of this chip, it turned out we need some power-on delay to make things stable again. In contrast to those other users which define 200 ms, Ultra96 is already happy with 10 ms. Fixes: 5869ba0653b9 ("arm64: zynqmp: Add support for Xilinx zcu100-revC") Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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@ -123,6 +123,7 @@
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sdio_pwrseq: sdio-pwrseq {
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compatible = "mmc-pwrseq-simple";
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reset-gpios = <&gpio 7 GPIO_ACTIVE_LOW>; /* WIFI_EN */
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post-power-on-delay-ms = <10>;
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};
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ina226 {
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