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path: root/drivers/platform/x86/thinkpad_acpi.c
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Diffstat (limited to 'drivers/platform/x86/thinkpad_acpi.c')
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c175
1 files changed, 163 insertions, 12 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index c568fae56db2..e6cb4a14cdd4 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -309,6 +309,20 @@ struct ibm_init_struct {
struct ibm_struct *data;
};
+/* DMI Quirks */
+struct quirk_entry {
+ bool btusb_bug;
+ u32 s2idle_bug_mmio;
+};
+
+static struct quirk_entry quirk_btusb_bug = {
+ .btusb_bug = true,
+};
+
+static struct quirk_entry quirk_s2idle_bug = {
+ .s2idle_bug_mmio = 0xfed80380,
+};
+
static struct {
u32 bluetooth:1;
u32 hotkey:1;
@@ -338,6 +352,7 @@ static struct {
u32 hotkey_poll_active:1;
u32 has_adaptive_kbd:1;
u32 kbd_lang:1;
+ struct quirk_entry *quirks;
} tp_features;
static struct {
@@ -4359,9 +4374,10 @@ static void bluetooth_exit(void)
bluetooth_shutdown();
}
-static const struct dmi_system_id bt_fwbug_list[] __initconst = {
+static const struct dmi_system_id fwbug_list[] __initconst = {
{
.ident = "ThinkPad E485",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20KU"),
@@ -4369,6 +4385,7 @@ static const struct dmi_system_id bt_fwbug_list[] __initconst = {
},
{
.ident = "ThinkPad E585",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20KV"),
@@ -4376,6 +4393,7 @@ static const struct dmi_system_id bt_fwbug_list[] __initconst = {
},
{
.ident = "ThinkPad A285 - 20MW",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MW"),
@@ -4383,6 +4401,7 @@ static const struct dmi_system_id bt_fwbug_list[] __initconst = {
},
{
.ident = "ThinkPad A285 - 20MX",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MX"),
@@ -4390,6 +4409,7 @@ static const struct dmi_system_id bt_fwbug_list[] __initconst = {
},
{
.ident = "ThinkPad A485 - 20MU",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MU"),
@@ -4397,14 +4417,125 @@ static const struct dmi_system_id bt_fwbug_list[] __initconst = {
},
{
.ident = "ThinkPad A485 - 20MV",
+ .driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MV"),
},
},
+ {
+ .ident = "L14 Gen2 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20X5"),
+ }
+ },
+ {
+ .ident = "T14s Gen2 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20XF"),
+ }
+ },
+ {
+ .ident = "X13 Gen2 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20XH"),
+ }
+ },
+ {
+ .ident = "T14 Gen2 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20XK"),
+ }
+ },
+ {
+ .ident = "T14 Gen1 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20UD"),
+ }
+ },
+ {
+ .ident = "T14 Gen1 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20UE"),
+ }
+ },
+ {
+ .ident = "T14s Gen1 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20UH"),
+ }
+ },
+ {
+ .ident = "P14s Gen1 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20Y1"),
+ }
+ },
+ {
+ .ident = "P14s Gen2 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21A0"),
+ }
+ },
{}
};
+#ifdef CONFIG_SUSPEND
+/*
+ * Lenovo laptops from a variety of generations run a SMI handler during the D3->D0
+ * transition that occurs specifically when exiting suspend to idle which can cause
+ * large delays during resume when the IOMMU translation layer is enabled (the default
+ * behavior) for NVME devices:
+ *
+ * To avoid this firmware problem, skip the SMI handler on these machines before the
+ * D0 transition occurs.
+ */
+static void thinkpad_acpi_amd_s2idle_restore(void)
+{
+ struct resource *res;
+ void __iomem *addr;
+ u8 val;
+
+ res = request_mem_region_muxed(tp_features.quirks->s2idle_bug_mmio, 1,
+ "thinkpad_acpi_pm80");
+ if (!res)
+ return;
+
+ addr = ioremap(tp_features.quirks->s2idle_bug_mmio, 1);
+ if (!addr)
+ goto cleanup_resource;
+
+ val = ioread8(addr);
+ iowrite8(val & ~BIT(0), addr);
+
+ iounmap(addr);
+cleanup_resource:
+ release_resource(res);
+}
+
+static struct acpi_s2idle_dev_ops thinkpad_acpi_s2idle_dev_ops = {
+ .restore = thinkpad_acpi_amd_s2idle_restore,
+};
+#endif
+
static const struct pci_device_id fwbug_cards_ids[] __initconst = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) },
@@ -4419,7 +4550,8 @@ static int __init have_bt_fwbug(void)
* Some AMD based ThinkPads have a firmware bug that calling
* "GBDC" will cause bluetooth on Intel wireless cards blocked
*/
- if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) {
+ if (tp_features.quirks && tp_features.quirks->btusb_bug &&
+ pci_dev_present(fwbug_cards_ids)) {
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
FW_BUG "disable bluetooth subdriver for Intel cards\n");
return 1;
@@ -8748,24 +8880,27 @@ static int __init fan_init(struct ibm_init_struct *iibm)
fan_status_access_mode = TPACPI_FAN_RD_TPEC;
if (quirks & TPACPI_FAN_Q1)
fan_quirk1_setup();
- if (quirks & TPACPI_FAN_2FAN) {
- tp_features.second_fan = 1;
- pr_info("secondary fan support enabled\n");
- }
- if (quirks & TPACPI_FAN_2CTL) {
- tp_features.second_fan = 1;
- tp_features.second_fan_ctl = 1;
- pr_info("secondary fan control enabled\n");
- }
/* Try and probe the 2nd fan */
+ tp_features.second_fan = 1; /* needed for get_speed to work */
res = fan2_get_speed(&speed);
if (res >= 0) {
/* It responded - so let's assume it's there */
tp_features.second_fan = 1;
tp_features.second_fan_ctl = 1;
pr_info("secondary fan control detected & enabled\n");
+ } else {
+ /* Fan not auto-detected */
+ tp_features.second_fan = 0;
+ if (quirks & TPACPI_FAN_2FAN) {
+ tp_features.second_fan = 1;
+ pr_info("secondary fan support enabled\n");
+ }
+ if (quirks & TPACPI_FAN_2CTL) {
+ tp_features.second_fan = 1;
+ tp_features.second_fan_ctl = 1;
+ pr_info("secondary fan control enabled\n");
+ }
}
-
} else {
pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n");
return -ENODEV;
@@ -11455,6 +11590,10 @@ static void thinkpad_acpi_module_exit(void)
tpacpi_lifecycle = TPACPI_LIFE_EXITING;
+#ifdef CONFIG_SUSPEND
+ if (tp_features.quirks && tp_features.quirks->s2idle_bug_mmio)
+ acpi_unregister_lps0_dev(&thinkpad_acpi_s2idle_dev_ops);
+#endif
if (tpacpi_hwmon)
hwmon_device_unregister(tpacpi_hwmon);
if (tp_features.sensors_pdrv_registered)
@@ -11496,6 +11635,7 @@ static void thinkpad_acpi_module_exit(void)
static int __init thinkpad_acpi_module_init(void)
{
+ const struct dmi_system_id *dmi_id;
int ret, i;
tpacpi_lifecycle = TPACPI_LIFE_INIT;
@@ -11535,6 +11675,10 @@ static int __init thinkpad_acpi_module_init(void)
return -ENODEV;
}
+ dmi_id = dmi_first_match(fwbug_list);
+ if (dmi_id)
+ tp_features.quirks = dmi_id->driver_data;
+
/* Device initialization */
tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1,
NULL, 0);
@@ -11623,6 +11767,13 @@ static int __init thinkpad_acpi_module_init(void)
tp_features.input_device_registered = 1;
}
+#ifdef CONFIG_SUSPEND
+ if (tp_features.quirks && tp_features.quirks->s2idle_bug_mmio) {
+ if (!acpi_register_lps0_dev(&thinkpad_acpi_s2idle_dev_ops))
+ pr_info("Using s2idle quirk to avoid %s platform firmware bug\n",
+ (dmi_id && dmi_id->ident) ? dmi_id->ident : "");
+ }
+#endif
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-01-30 20:23:16 +0000