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Message-Id: <20110531155200.3524.52833.sendpatchset@prarit.bos.redhat.com>
Date: Tue, 31 May 2011 11:52:00 -0400
From: Prarit Bhargava <prarit@...hat.com>
To: linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org
Cc: Prarit Bhargava <prarit@...hat.com>
Subject: [RFC PATCH 12/35] drivers/i2c changes for SMBIOS and System Firmware
drivers/i2c changes for SMBIOS and System Firmware
---
drivers/i2c/busses/i2c-i801.c | 76 ++++++++++---------------------------
drivers/i2c/busses/i2c-nforce2.c | 12 +++---
drivers/i2c/busses/i2c-piix4.c | 22 +++++-----
3 files changed, 38 insertions(+), 72 deletions(-)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index ab26840d..7e19ea2 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -73,7 +73,8 @@
#include <linux/i2c.h>
#include <linux/acpi.h>
#include <linux/io.h>
-#include <linux/dmi.h>
+#include <linux/smbios.h>
+#include <linux/sysfw.h>
#include <linux/slab.h>
/* I801 SMBus address offsets */
@@ -669,69 +670,34 @@ static void __init input_apanel_init(void)
iounmap(bios);
}
-struct dmi_onboard_device_info {
+struct smbios_onboard_device_info {
const char *name;
- u8 type;
unsigned short i2c_addr;
const char *i2c_type;
};
-static struct dmi_onboard_device_info __devinitdata dmi_devices[] = {
- { "Syleus", DMI_DEV_TYPE_OTHER, 0x73, "fscsyl" },
- { "Hermes", DMI_DEV_TYPE_OTHER, 0x73, "fscher" },
- { "Hades", DMI_DEV_TYPE_OTHER, 0x73, "fschds" },
+static struct smbios_onboard_device_info __devinitdata smbios_devices[] = {
+ { "Syleus", 0x73, "fscsyl" },
+ { "SYLEUS", 0x73, "fscsyl" },
+ { "Hermes", 0x73, "fscher" },
+ { "HERMES", 0x73, "fscher" },
+ { "Hades", 0x73, "fschds" },
+ { "HADES", 0x73, "fschds" },
};
-static void __devinit dmi_check_onboard_device(u8 type, const char *name,
- struct i2c_adapter *adap)
+static void __devinit smbios_check_fschmd(struct i2c_adapter *adap)
{
int i;
struct i2c_board_info info;
- for (i = 0; i < ARRAY_SIZE(dmi_devices); i++) {
- /* & ~0x80, ignore enabled/disabled bit */
- if ((type & ~0x80) != dmi_devices[i].type)
- continue;
- if (strcasecmp(name, dmi_devices[i].name))
- continue;
-
- memset(&info, 0, sizeof(struct i2c_board_info));
- info.addr = dmi_devices[i].i2c_addr;
- strlcpy(info.type, dmi_devices[i].i2c_type, I2C_NAME_SIZE);
- i2c_new_device(adap, &info);
- break;
- }
-}
-
-/* We use our own function to check for onboard devices instead of
- dmi_find_device() as some buggy BIOS's have the devices we are interested
- in marked as disabled */
-static void __devinit dmi_check_onboard_devices(const struct dmi_header *dm,
- void *adap)
-{
- int i, count;
-
- if (dm->type != 10)
- return;
-
- count = (dm->length - sizeof(struct dmi_header)) / 2;
- for (i = 0; i < count; i++) {
- const u8 *d = (char *)(dm + 1) + (i * 2);
- const char *name = ((char *) dm) + dm->length;
- u8 type = d[0];
- u8 s = d[1];
-
- if (!s)
- continue;
- s--;
- while (s > 0 && name[0]) {
- name += strlen(name) + 1;
- s--;
+ for (i = 0; i < ARRAY_SIZE(onboard); i++) {
+ /* some buggy BIOSes have the devices disabled */
+ if (smbios_is_onboard_device(onboard[i].name, 1)) {
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ info.addr = onboard[i].i2c_addr;
+ strlcpy(info.type, onboard[i].i2c_type, I2C_NAME_SIZE);
+ i2c_new_device(adap, &info);
}
- if (name[0] == 0) /* Bogus string reference */
- continue;
-
- dmi_check_onboard_device(type, name, adap);
}
}
@@ -751,8 +717,8 @@ static void __devinit i801_probe_optional_slaves(struct i801_priv *priv)
i2c_new_device(&priv->adapter, &info);
}
- if (dmi_name_in_vendors("FUJITSU"))
- dmi_walk(dmi_check_onboard_devices, &priv->adapter);
+ if (sysfw_vendor_is("FUJITSU"))
+ smbios_check_fschmd(&priv->adapter);
}
#else
static void __init input_apanel_init(void) {}
@@ -927,7 +893,7 @@ static struct pci_driver i801_driver = {
static int __init i2c_i801_init(void)
{
- if (dmi_name_in_vendors("FUJITSU"))
+ if (sysfw_vendor_is("FUJITSU"))
input_apanel_init();
return pci_register_driver(&i801_driver);
}
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c
index ff1e127..458623e 100644
--- a/drivers/i2c/busses/i2c-nforce2.c
+++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -54,7 +54,7 @@
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/delay.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
#include <linux/acpi.h>
#include <linux/slab.h>
#include <linux/io.h>
@@ -117,15 +117,15 @@ struct nforce2_smbus {
#define MAX_TIMEOUT 100
/* We disable the second SMBus channel on these boards */
-static struct dmi_system_id __devinitdata nforce2_dmi_blacklist2[] = {
+static struct sysfw_id __devinitdata nforce2_id_blacklist2[] = {
{
.ident = "DFI Lanparty NF4 Expert",
.matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "DFI Corp,LTD"),
- DMI_MATCH(DMI_BOARD_NAME, "LP UT NF4 Expert"),
+ SYSFW_MATCH(SYSFW_BOARD_VENDOR, "DFI Corp,LTD"),
+ SYSFW_MATCH(SYSFW_BOARD_NAME, "LP UT NF4 Expert"),
},
},
- { }
+ {}
};
static struct pci_driver nforce2_driver;
@@ -408,7 +408,7 @@ static int __devinit nforce2_probe(struct pci_dev *dev, const struct pci_device_
smbuses[0].base = 0; /* to have a check value */
/* SMBus adapter 2 */
- if (dmi_check_system(nforce2_dmi_blacklist2)) {
+ if (sysfw_callback(nforce2_id_blacklist2)) {
dev_err(&dev->dev, "Disabling SMB2 for safety reasons.\n");
res2 = -EPERM;
smbuses[1].base = 0;
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 6d14ac2..fa9d8a0 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -37,7 +37,7 @@
#include <linux/ioport.h>
#include <linux/i2c.h>
#include <linux/init.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
#include <linux/acpi.h>
#include <linux/io.h>
@@ -99,30 +99,30 @@ static int srvrworks_csb5_delay;
static struct pci_driver piix4_driver;
static struct i2c_adapter piix4_adapter;
-static struct dmi_system_id __devinitdata piix4_dmi_blacklist[] = {
+static struct sysfw_id __devinitdata piix4_id_blacklist[] = {
{
.ident = "Sapphire AM2RD790",
.matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "SAPPHIRE Inc."),
- DMI_MATCH(DMI_BOARD_NAME, "PC-AM2RD790"),
+ SYSFW_MATCH(SYSFW_BOARD_VENDOR, "SAPPHIRE Inc."),
+ SYSFW_MATCH(SYSFW_BOARD_NAME, "PC-AM2RD790"),
},
},
{
.ident = "DFI Lanparty UT 790FX",
.matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "DFI Inc."),
- DMI_MATCH(DMI_BOARD_NAME, "LP UT 790FX"),
+ SYSFW_MATCH(SYSFW_BOARD_VENDOR, "DFI Inc."),
+ SYSFW_MATCH(SYSFW_BOARD_NAME, "LP UT 790FX"),
},
},
- { }
+ {}
};
/* The IBM entry is in a separate table because we only check it
on Intel-based systems */
-static struct dmi_system_id __devinitdata piix4_dmi_ibm[] = {
+static struct sysfw_id __devinitdata piix4_id_ibm[] = {
{
.ident = "IBM",
- .matches = { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), },
+ .matches = { SYSFW_MATCH(SYSFW_SYS_VENDOR, "IBM"), },
},
{ },
};
@@ -138,14 +138,14 @@ static int __devinit piix4_setup(struct pci_dev *PIIX4_dev,
/* On some motherboards, it was reported that accessing the SMBus
caused severe hardware problems */
- if (dmi_check_system(piix4_dmi_blacklist)) {
+ if (sysfw_callback(piix4_id_blacklist)) {
dev_err(&PIIX4_dev->dev,
"Accessing the SMBus on this system is unsafe!\n");
return -EPERM;
}
/* Don't access SMBus on IBM systems which get corrupted eeproms */
- if (dmi_check_system(piix4_dmi_ibm) &&
+ if (sysfw_callback(piix4_id_ibm) &&
PIIX4_dev->vendor == PCI_VENDOR_ID_INTEL) {
dev_err(&PIIX4_dev->dev, "IBM system detected; this module "
"may corrupt your serial eeprom! Refusing to load "
--
1.7.5.1
--
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