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[src/trunk]: src/sys/dev Don't map ACPI _HID / _CID strings to "compatible" s...
details: https://anonhg.NetBSD.org/src/rev/96e777fdfa14
branches: trunk
changeset: 950361:96e777fdfa14
user: thorpej <thorpej%NetBSD.org@localhost>
date: Tue Jan 26 01:23:08 2021 +0000
description:
Don't map ACPI _HID / _CID strings to "compatible" strings from the
Device Tree bindings. Just pass those strings in the standard
most-specific-to-least-specific order to the drivers and let them
deal.
diffstat:
sys/dev/acpi/acpi_i2c.c | 142 ++++++-----------------------------------------
sys/dev/i2c/ihidev.c | 6 +-
sys/dev/i2c/pcai2cmux.c | 8 +-
3 files changed, 27 insertions(+), 129 deletions(-)
diffs (256 lines):
diff -r e1950f43a509 -r 96e777fdfa14 sys/dev/acpi/acpi_i2c.c
--- a/sys/dev/acpi/acpi_i2c.c Tue Jan 26 01:15:39 2021 +0000
+++ b/sys/dev/acpi/acpi_i2c.c Tue Jan 26 01:23:08 2021 +0000
@@ -1,7 +1,7 @@
-/* $NetBSD: acpi_i2c.c,v 1.10 2021/01/26 00:19:53 jmcneill Exp $ */
+/* $NetBSD: acpi_i2c.c,v 1.11 2021/01/26 01:23:08 thorpej Exp $ */
/*-
- * Copyright (c) 2017 The NetBSD Foundation, Inc.
+ * Copyright (c) 2017, 2021 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@@ -30,113 +30,18 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_i2c.c,v 1.10 2021/01/26 00:19:53 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_i2c.c,v 1.11 2021/01/26 01:23:08 thorpej Exp $");
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpi_i2c.h>
#include <dev/i2c/i2cvar.h>
+#include <sys/kmem.h>
+
#define _COMPONENT ACPI_BUS_COMPONENT
ACPI_MODULE_NAME ("acpi_i2c")
-static void
-acpi_enter_i2c_hid(struct acpi_devnode *devnode, prop_dictionary_t dev)
-{
- ACPI_OBJECT_LIST arg;
- ACPI_OBJECT obj[4];
- ACPI_OBJECT *osc;
- ACPI_BUFFER buf;
- ACPI_STATUS rv;
- /* 3cdff6f7-4267-4555-ad05-b30a3d8938de */
- static uint8_t i2c_hid_guid[] = {
- 0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45,
- 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE,
- };
-
- arg.Count = 4;
- arg.Pointer = obj;
-
- obj[0].Type = ACPI_TYPE_BUFFER;
- obj[0].Buffer.Length = sizeof(i2c_hid_guid);
- obj[0].Buffer.Pointer = i2c_hid_guid;
-
- /* rev */
- obj[1].Type = ACPI_TYPE_INTEGER;
- obj[1].Integer.Value = 1;
-
- /* func */
- obj[2].Type = ACPI_TYPE_INTEGER;
- obj[2].Integer.Value = 1;
-
- obj[3].Type = ACPI_TYPE_PACKAGE;
- obj[3].Buffer.Length = 0;
-
- buf.Pointer = NULL;
- buf.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
-
- rv = AcpiEvaluateObject(devnode->ad_handle, "_DSM", &arg, &buf);
-
- if (ACPI_FAILURE(rv)) {
- aprint_error("failed to evaluate _DSM for %s: %s\n",
- devnode->ad_name, AcpiFormatException(rv));
- return;
- }
-
- osc = buf.Pointer;
- if (osc->Type != ACPI_TYPE_INTEGER) {
- aprint_error("bad _DSM return type %d for %s\n",
- osc->Type, devnode->ad_name);
- return;
- }
- prop_dictionary_set_uint32(dev, "hid-descr-addr", osc->Integer.Value);
-}
-
-struct acpi_i2c_id {
- const char *id;
- const char *compat;
- const int compatlen;
- void (*parse)(struct acpi_devnode *, prop_dictionary_t);
-};
-
-static const struct acpi_i2c_id acpi_i2c_ids[] = {
- {
- .id = "PNP0C50",
- .compat = "hid-over-i2c",
- .compatlen = 13,
- .parse = acpi_enter_i2c_hid
- },
- {
- .id = "ACPI0C50",
- .compat = "hid-over-i2c",
- .compatlen = 13,
- .parse = acpi_enter_i2c_hid
- },
- {
- .id = "NXP0002",
- .compat = "nxp,pca9547",
- .compatlen = 12,
- .parse = NULL
- },
- {
- .id = NULL,
- .compat = NULL,
- .compatlen = 0,
- .parse = NULL
- }
-};
-
-static const struct acpi_i2c_id *
-acpi_i2c_search(const char *name)
-{
- int i;
- for (i = 0; acpi_i2c_ids[i].id != NULL; i++) {
- if (strcmp(name, acpi_i2c_ids[i].id) == 0)
- return &acpi_i2c_ids[i];
- }
- return NULL;
-}
-
struct acpi_i2c_context {
uint16_t i2c_addr;
};
@@ -170,10 +75,9 @@
prop_dictionary_t dev;
struct acpi_i2c_context i2cc;
ACPI_STATUS rv;
- int cidi;
- ACPI_PNP_DEVICE_ID_LIST *idlist;
const char *name;
- static const struct acpi_i2c_id *i2c_id;
+ char *clist;
+ size_t clist_size;
memset(&i2cc, 0, sizeof(i2cc));
rv = AcpiWalkResources(ad->ad_handle, "_CRS",
@@ -192,7 +96,14 @@
ad->ad_name);
return;
}
- if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0)
+ clist = acpi_pack_compat_list(ad->ad_devinfo, &clist_size);
+ if (clist == NULL) {
+ prop_object_release(dev);
+ aprint_error("ignoring device %s (no _HID or _CID)\n",
+ ad->ad_name);
+ return;
+ }
+ if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0)
name = ad->ad_name;
else
name = ad->ad_devinfo->HardwareId.String;
@@ -200,30 +111,13 @@
prop_dictionary_set_uint32(dev, "addr", i2cc.i2c_addr);
prop_dictionary_set_uint64(dev, "cookie", (uintptr_t)ad->ad_handle);
prop_dictionary_set_uint32(dev, "cookietype", I2C_COOKIE_ACPI);
- /* first search by name, then by CID */
- i2c_id = acpi_i2c_search(name);
- idlist = &ad->ad_devinfo->CompatibleIdList;
- for (cidi = 0;
- cidi < idlist->Count && i2c_id == NULL;
- cidi++) {
- i2c_id = acpi_i2c_search(idlist->Ids[cidi].String);
- }
- if (i2c_id != NULL) {
- if (i2c_id->compat != NULL) {
- prop_data_t data;
- data = prop_data_create_copy(i2c_id->compat,
- i2c_id->compatlen);
- prop_dictionary_set(dev, "compatible", data);
- prop_object_release(data);
- }
- if (i2c_id->parse != NULL)
- i2c_id->parse(ad, dev);
- }
+ prop_dictionary_set_data(dev, "compatible", clist, clist_size);
+ kmem_free(clist, clist_size);
+
prop_array_add(array, dev);
prop_object_release(dev);
}
-
prop_array_t
acpi_enter_i2c_devs(device_t dev, struct acpi_devnode *devnode)
{
diff -r e1950f43a509 -r 96e777fdfa14 sys/dev/i2c/ihidev.c
--- a/sys/dev/i2c/ihidev.c Tue Jan 26 01:15:39 2021 +0000
+++ b/sys/dev/i2c/ihidev.c Tue Jan 26 01:23:08 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ihidev.c,v 1.15 2021/01/26 01:15:39 thorpej Exp $ */
+/* $NetBSD: ihidev.c,v 1.16 2021/01/26 01:23:08 thorpej Exp $ */
/* $OpenBSD ihidev.c,v 1.13 2017/04/08 02:57:23 deraadt Exp $ */
/*-
@@ -54,7 +54,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ihidev.c,v 1.15 2021/01/26 01:15:39 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ihidev.c,v 1.16 2021/01/26 01:23:08 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -126,6 +126,8 @@
static int ihidev_submatch(device_t, cfdata_t, const int *, void *);
static const struct device_compatible_entry compat_data[] = {
+ { .compat = "PNP0C50" },
+ { .compat = "ACPI0C50" },
{ .compat = "hid-over-i2c" },
{ }
};
diff -r e1950f43a509 -r 96e777fdfa14 sys/dev/i2c/pcai2cmux.c
--- a/sys/dev/i2c/pcai2cmux.c Tue Jan 26 01:15:39 2021 +0000
+++ b/sys/dev/i2c/pcai2cmux.c Tue Jan 26 01:23:08 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pcai2cmux.c,v 1.6 2021/01/25 12:18:18 jmcneill Exp $ */
+/* $NetBSD: pcai2cmux.c,v 1.7 2021/01/26 01:23:08 thorpej Exp $ */
/*-
* Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
#endif
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pcai2cmux.c,v 1.6 2021/01/25 12:18:18 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pcai2cmux.c,v 1.7 2021/01/26 01:23:08 thorpej Exp $");
/*
* Driver for NXP PCA954x / PCA984x I2C switches and multiplexers.
@@ -133,6 +133,8 @@
/* PCA9547 - 8 channel i2c mux */
{ .compat = "nxp,pca9547",
.data = &mux8_type },
+ { .compat = "NXP0002",
+ .data = &mux8_type },
/* PCA9548 - 8 channel i2c switch */
{ .compat = "nxp,pca9548",
@@ -154,7 +156,7 @@
{ .compat = "nxp,pca9849",
.data = &mux4_type },
- { 0 }
+ { }
};
struct pcaiicmux_softc {
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