The GPIO pin on Apple M1 systems is actually connected to the SDZ pin, which

is reflected in more recent device trees.  Adjust the driver accordingly.

ok patrick@

diff --git a/sys/dev/fdt/tascodec.c b/sys/dev/fdt/tascodec.c
index 48c7e35..12e1466 100644 (file)
--- a/sys/dev/fdt/tascodec.c
+++ b/sys/dev/fdt/tascodec.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: tascodec.c,v 1.3 2022/03/21 19:22:40 miod Exp $       */
+/*     $OpenBSD: tascodec.c,v 1.4 2022/07/25 16:35:41 kettenis Exp $   */
 /*
  * Copyright (c) 2022 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -107,8 +107,8 @@ tascodec_attach(struct device *parent, struct device *self, void *aux)
        struct tascodec_softc *sc = (struct tascodec_softc *)self;
        struct i2c_attach_args *ia = aux;
        int node = *(int *)ia->ia_cookie;
-       uint32_t *reset_gpio;
-       int reset_gpiolen;
+       uint32_t *sdz_gpio;
+       int sdz_gpiolen;
        uint8_t cfg2;
 
        sc->sc_tag = ia->ia_tag;
@@ -116,14 +116,14 @@ tascodec_attach(struct device *parent, struct device *self, void *aux)
 
        printf("\n");
 
-       reset_gpiolen = OF_getproplen(node, "reset-gpios");
-       if (reset_gpiolen > 0) {
-               reset_gpio = malloc(reset_gpiolen, M_TEMP, M_WAITOK);
-               OF_getpropintarray(node, "reset-gpios",
-                   reset_gpio, reset_gpiolen);
-               gpio_controller_config_pin(reset_gpio, GPIO_CONFIG_OUTPUT);
-               gpio_controller_set_pin(reset_gpio, 1);
-               free(reset_gpio, M_TEMP, reset_gpiolen);
+       sdz_gpiolen = OF_getproplen(node, "shutdown-gpios");
+       if (sdz_gpiolen > 0) {
+               sdz_gpio = malloc(sdz_gpiolen, M_TEMP, M_WAITOK);
+               OF_getpropintarray(node, "shutdown-gpios",
+                   sdz_gpio, sdz_gpiolen);
+               gpio_controller_config_pin(sdz_gpio, GPIO_CONFIG_OUTPUT);
+               gpio_controller_set_pin(sdz_gpio, 1);
+               free(sdz_gpio, M_TEMP, sdz_gpiolen);
                delay(1000);
        }