[src/trunk]: src/sys/dev/acpi Add ACPI glue for PL061 GPIO

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fe9bd94e3edf
branches:  trunk
changeset: 836410:fe9bd94e3edf
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Mon Oct 15 23:59:16 2018 +0000

description:
Add ACPI glue for PL061 GPIO

diffstat:

 sys/dev/acpi/files.acpi    |    6 ++-
 sys/dev/acpi/plgpio_acpi.c |  103 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 108 insertions(+), 1 deletions(-)

diffs (125 lines):

diff -r 4c04541631da -r fe9bd94e3edf sys/dev/acpi/files.acpi
--- a/sys/dev/acpi/files.acpi   Mon Oct 15 23:53:47 2018 +0000
+++ b/sys/dev/acpi/files.acpi   Mon Oct 15 23:59:16 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.acpi,v 1.103 2018/10/12 23:26:18 jmcneill Exp $
+#      $NetBSD: files.acpi,v 1.104 2018/10/15 23:59:16 jmcneill Exp $
 
 include "dev/acpi/acpica/files.acpica"
 
@@ -233,4 +233,8 @@
 attach ahcisata at acpinodebus with ahcisata_acpi
 file   dev/acpi/ahcisata_acpi.c        ahcisata_acpi
 
+# ARM PrimeCell PL061 GPIO controller
+attach plgpio at acpinodebus with plgpio_acpi
+file   dev/acpi/plgpio_acpi.c          plgpio_acpi
+
 include        "dev/acpi/wmi/files.wmi"
diff -r 4c04541631da -r fe9bd94e3edf sys/dev/acpi/plgpio_acpi.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/acpi/plgpio_acpi.c        Mon Oct 15 23:59:16 2018 +0000
@@ -0,0 +1,103 @@
+/* $NetBSD: plgpio_acpi.c,v 1.1 2018/10/15 23:59:16 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jared McNeill <jmcneill%invisible.ca@localhost>.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: plgpio_acpi.c,v 1.1 2018/10/15 23:59:16 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
+#include <sys/gpio.h>
+
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+
+#include <dev/gpio/gpiovar.h>
+#include <dev/ic/pl061var.h>
+
+static int     plgpio_acpi_match(device_t, cfdata_t, void *);
+static void    plgpio_acpi_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(plgpio_acpi, sizeof(struct plgpio_softc), plgpio_acpi_match, plgpio_acpi_attach, NULL, NULL);
+
+static const char * const compatible[] = {
+       "ARMH0061",
+       NULL
+};
+
+static int
+plgpio_acpi_match(device_t parent, cfdata_t cf, void *aux)
+{
+       struct acpi_attach_args *aa = aux;
+
+       if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
+               return 0;
+
+       return acpi_match_hid(aa->aa_node->ad_devinfo, compatible);
+}
+
+static void
+plgpio_acpi_attach(device_t parent, device_t self, void *aux)
+{
+       struct plgpio_softc * const sc = device_private(self);
+       struct acpi_attach_args *aa = aux;
+       struct acpi_resources res;
+       struct acpi_mem *mem;
+       ACPI_STATUS rv;
+       int error;
+
+       sc->sc_dev = self;
+
+       rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
+           &res, &acpi_resource_parse_ops_default);
+       if (ACPI_FAILURE(rv))
+               return;
+
+       mem = acpi_res_mem(&res, 0);
+       if (mem == NULL) {
+               aprint_error_dev(self, "couldn't find mem resource\n");
+               goto done;
+       }
+
+       sc->sc_dev = self;
+       sc->sc_bst = aa->aa_memt;
+       error = bus_space_map(sc->sc_bst, mem->ar_base, mem->ar_length, 0, &sc->sc_bsh);
+       if (error) {
+               aprint_error_dev(self, "couldn't map registers\n");
+               return;
+       }
+
+       plgpio_attach(sc);
+
+done:
+       acpi_resource_cleanup(&res);
+}