From 1046cac109225eda0973b898e053aeb3d6c10e1d Mon Sep 17 00:00:00 2001 From: Sybil Isabel Dorsett Date: Mon, 3 Feb 2025 16:33:15 +0000 Subject: [PATCH 1/5] platform/x86: thinkpad_acpi: Fix invalid fan speed on ThinkPad X120e MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On ThinkPad X120e, fan speed is reported in ticks per revolution rather than RPM. Recalculate the fan speed value reported for ThinkPad X120e to RPM based on a 22.5 kHz clock. Based on the information on https://www.thinkwiki.org/wiki/How_to_control_fan_speed, the same problem is highly likely to be relevant to at least Edge11, but Edge11 is not addressed in this patch. Signed-off-by: Sybil Isabel Dorsett Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20250203163255.5525-1-sybdorsett@proton.me Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/thinkpad_acpi.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 1fcb0f99695a..e7778ea41478 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -7885,6 +7885,7 @@ static struct ibm_struct volume_driver_data = { #define FAN_NS_CTRL_STATUS BIT(2) /* Bit which determines control is enabled or not */ #define FAN_NS_CTRL BIT(4) /* Bit which determines control is by host or EC */ +#define FAN_CLOCK_TPM (22500*60) /* Ticks per minute for a 22.5 kHz clock */ enum { /* Fan control constants */ fan_status_offset = 0x2f, /* EC register 0x2f */ @@ -7940,6 +7941,7 @@ static int fan_watchdog_maxinterval; static bool fan_with_ns_addr; static bool ecfw_with_fan_dec_rpm; +static bool fan_speed_in_tpr; static struct mutex fan_mutex; @@ -8142,8 +8144,11 @@ static int fan_get_speed(unsigned int *speed) !acpi_ec_read(fan_rpm_offset + 1, &hi))) return -EIO; - if (likely(speed)) + if (likely(speed)) { *speed = (hi << 8) | lo; + if (fan_speed_in_tpr && *speed != 0) + *speed = FAN_CLOCK_TPM / *speed; + } break; case TPACPI_FAN_RD_TPEC_NS: if (!acpi_ec_read(fan_rpm_status_ns, &lo)) @@ -8176,8 +8181,11 @@ static int fan2_get_speed(unsigned int *speed) if (rc) return -EIO; - if (likely(speed)) + if (likely(speed)) { *speed = (hi << 8) | lo; + if (fan_speed_in_tpr && *speed != 0) + *speed = FAN_CLOCK_TPM / *speed; + } break; case TPACPI_FAN_RD_TPEC_NS: @@ -8788,6 +8796,7 @@ static const struct attribute_group fan_driver_attr_group = { #define TPACPI_FAN_NOFAN 0x0008 /* no fan available */ #define TPACPI_FAN_NS 0x0010 /* For EC with non-Standard register addresses */ #define TPACPI_FAN_DECRPM 0x0020 /* For ECFW's with RPM in register as decimal */ +#define TPACPI_FAN_TPR 0x0040 /* Fan speed is in Ticks Per Revolution */ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1), @@ -8817,6 +8826,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { TPACPI_Q_LNV3('R', '0', 'V', TPACPI_FAN_NS), /* 11e Gen5 KL-Y */ TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN), /* X1 Tablet (2nd gen) */ TPACPI_Q_LNV3('R', '0', 'Q', TPACPI_FAN_DECRPM),/* L480 */ + TPACPI_Q_LNV('8', 'F', TPACPI_FAN_TPR), /* ThinkPad x120e */ }; static int __init fan_init(struct ibm_init_struct *iibm) @@ -8887,6 +8897,8 @@ static int __init fan_init(struct ibm_init_struct *iibm) if (quirks & TPACPI_FAN_Q1) fan_quirk1_setup(); + if (quirks & TPACPI_FAN_TPR) + fan_speed_in_tpr = true; /* Try and probe the 2nd fan */ tp_features.second_fan = 1; /* needed for get_speed to work */ res = fan2_get_speed(&speed); From 9cff907cbf8c7fb5345918dbcc7b74a01656f34f Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Thu, 6 Feb 2025 14:39:41 -0500 Subject: [PATCH 2/5] platform/x86: thinkpad_acpi: Support for V9 DYTC platform profiles MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Newer Thinkpad AMD platforms are using V9 DYTC and this changes the profiles used for PSC mode. Add support for this update. Tested on P14s G5 AMD Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20250206193953.58365-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/thinkpad_acpi.c | 34 ++++++++++++++++++---------- 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index e7778ea41478..99cdea723d32 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -10331,6 +10331,10 @@ static struct ibm_struct proxsensor_driver_data = { #define DYTC_MODE_PSC_BALANCE 5 /* Default mode aka balanced */ #define DYTC_MODE_PSC_PERFORM 7 /* High power mode aka performance */ +#define DYTC_MODE_PSCV9_LOWPOWER 1 /* Low power mode */ +#define DYTC_MODE_PSCV9_BALANCE 3 /* Default mode aka balanced */ +#define DYTC_MODE_PSCV9_PERFORM 4 /* High power mode aka performance */ + #define DYTC_ERR_MASK 0xF /* Bits 0-3 in cmd result are the error result */ #define DYTC_ERR_SUCCESS 1 /* CMD completed successful */ @@ -10351,6 +10355,10 @@ static int dytc_capabilities; static bool dytc_mmc_get_available; static int profile_force; +static int platform_psc_profile_lowpower = DYTC_MODE_PSC_LOWPOWER; +static int platform_psc_profile_balanced = DYTC_MODE_PSC_BALANCE; +static int platform_psc_profile_performance = DYTC_MODE_PSC_PERFORM; + static int convert_dytc_to_profile(int funcmode, int dytcmode, enum platform_profile_option *profile) { @@ -10372,19 +10380,15 @@ static int convert_dytc_to_profile(int funcmode, int dytcmode, } return 0; case DYTC_FUNCTION_PSC: - switch (dytcmode) { - case DYTC_MODE_PSC_LOWPOWER: + if (dytcmode == platform_psc_profile_lowpower) *profile = PLATFORM_PROFILE_LOW_POWER; - break; - case DYTC_MODE_PSC_BALANCE: + else if (dytcmode == platform_psc_profile_balanced) *profile = PLATFORM_PROFILE_BALANCED; - break; - case DYTC_MODE_PSC_PERFORM: + else if (dytcmode == platform_psc_profile_performance) *profile = PLATFORM_PROFILE_PERFORMANCE; - break; - default: /* Unknown mode */ + else return -EINVAL; - } + return 0; case DYTC_FUNCTION_AMT: /* For now return balanced. It's the closest we have to 'auto' */ @@ -10405,19 +10409,19 @@ static int convert_profile_to_dytc(enum platform_profile_option profile, int *pe if (dytc_capabilities & BIT(DYTC_FC_MMC)) *perfmode = DYTC_MODE_MMC_LOWPOWER; else if (dytc_capabilities & BIT(DYTC_FC_PSC)) - *perfmode = DYTC_MODE_PSC_LOWPOWER; + *perfmode = platform_psc_profile_lowpower; break; case PLATFORM_PROFILE_BALANCED: if (dytc_capabilities & BIT(DYTC_FC_MMC)) *perfmode = DYTC_MODE_MMC_BALANCE; else if (dytc_capabilities & BIT(DYTC_FC_PSC)) - *perfmode = DYTC_MODE_PSC_BALANCE; + *perfmode = platform_psc_profile_balanced; break; case PLATFORM_PROFILE_PERFORMANCE: if (dytc_capabilities & BIT(DYTC_FC_MMC)) *perfmode = DYTC_MODE_MMC_PERFORM; else if (dytc_capabilities & BIT(DYTC_FC_PSC)) - *perfmode = DYTC_MODE_PSC_PERFORM; + *perfmode = platform_psc_profile_performance; break; default: /* Unknown profile */ return -EOPNOTSUPP; @@ -10611,6 +10615,7 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) if (output & BIT(DYTC_QUERY_ENABLE_BIT)) dytc_version = (output >> DYTC_QUERY_REV_BIT) & 0xF; + dbg_printk(TPACPI_DBG_INIT, "DYTC version %d\n", dytc_version); /* Check DYTC is enabled and supports mode setting */ if (dytc_version < 5) return -ENODEV; @@ -10649,6 +10654,11 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) } } else if (dytc_capabilities & BIT(DYTC_FC_PSC)) { /* PSC MODE */ pr_debug("PSC is supported\n"); + if (dytc_version >= 9) { /* update profiles for DYTC 9 and up */ + platform_psc_profile_lowpower = DYTC_MODE_PSCV9_LOWPOWER; + platform_psc_profile_balanced = DYTC_MODE_PSCV9_BALANCE; + platform_psc_profile_performance = DYTC_MODE_PSCV9_PERFORM; + } } else { dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n"); return -ENODEV; From fc22b06fbd2afefa1eddff69a6fd30c539cef577 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 11 Feb 2025 09:28:39 +0200 Subject: [PATCH 3/5] platform/x86: int3472: Use correct type for "polarity", call it gpio_flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Struct gpiod_lookup flags field's type is unsigned long. Thus use unsigned long for values to be assigned to that field. Similarly, also call the field gpio_flags which it really is. Signed-off-by: Sakari Ailus Reviewed-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250211072841.7713-2-sakari.ailus@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/int3472/discrete.c | 39 ++++++++++--------- 1 file changed, 20 insertions(+), 19 deletions(-) diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 31015ebe20d8..b891b064fbf7 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -55,7 +55,7 @@ static void skl_int3472_log_sensor_module_name(struct int3472_discrete_device *i static int skl_int3472_fill_gpiod_lookup(struct gpiod_lookup *table_entry, struct acpi_resource_gpio *agpio, - const char *func, u32 polarity) + const char *func, unsigned long gpio_flags) { char *path = agpio->resource_source.string_ptr; struct acpi_device *adev; @@ -70,14 +70,14 @@ static int skl_int3472_fill_gpiod_lookup(struct gpiod_lookup *table_entry, if (!adev) return -ENODEV; - *table_entry = GPIO_LOOKUP(acpi_dev_name(adev), agpio->pin_table[0], func, polarity); + *table_entry = GPIO_LOOKUP(acpi_dev_name(adev), agpio->pin_table[0], func, gpio_flags); return 0; } static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int3472, struct acpi_resource_gpio *agpio, - const char *func, u32 polarity) + const char *func, unsigned long gpio_flags) { int ret; @@ -87,7 +87,7 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347 } ret = skl_int3472_fill_gpiod_lookup(&int3472->gpios.table[int3472->n_sensor_gpios], - agpio, func, polarity); + agpio, func, gpio_flags); if (ret) return ret; @@ -100,7 +100,7 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347 static struct gpio_desc * skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472, struct acpi_resource_gpio *agpio, - const char *func, u32 polarity) + const char *func, unsigned long gpio_flags) { struct gpio_desc *desc; int ret; @@ -111,7 +111,7 @@ skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472, return ERR_PTR(-ENOMEM); lookup->dev_id = dev_name(int3472->dev); - ret = skl_int3472_fill_gpiod_lookup(&lookup->table[0], agpio, func, polarity); + ret = skl_int3472_fill_gpiod_lookup(&lookup->table[0], agpio, func, gpio_flags); if (ret) return ERR_PTR(ret); @@ -122,32 +122,33 @@ skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472, return desc; } -static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polarity) +static void int3472_get_func_and_polarity(u8 type, const char **func, + unsigned long *gpio_flags) { switch (type) { case INT3472_GPIO_TYPE_RESET: *func = "reset"; - *polarity = GPIO_ACTIVE_LOW; + *gpio_flags = GPIO_ACTIVE_LOW; break; case INT3472_GPIO_TYPE_POWERDOWN: *func = "powerdown"; - *polarity = GPIO_ACTIVE_LOW; + *gpio_flags = GPIO_ACTIVE_LOW; break; case INT3472_GPIO_TYPE_CLK_ENABLE: *func = "clk-enable"; - *polarity = GPIO_ACTIVE_HIGH; + *gpio_flags = GPIO_ACTIVE_HIGH; break; case INT3472_GPIO_TYPE_PRIVACY_LED: *func = "privacy-led"; - *polarity = GPIO_ACTIVE_HIGH; + *gpio_flags = GPIO_ACTIVE_HIGH; break; case INT3472_GPIO_TYPE_POWER_ENABLE: *func = "power-enable"; - *polarity = GPIO_ACTIVE_HIGH; + *gpio_flags = GPIO_ACTIVE_HIGH; break; default: *func = "unknown"; - *polarity = GPIO_ACTIVE_HIGH; + *gpio_flags = GPIO_ACTIVE_HIGH; break; } } @@ -194,7 +195,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, struct gpio_desc *gpio; const char *err_msg; const char *func; - u32 polarity; + unsigned long gpio_flags; int ret; if (!acpi_gpio_get_io_resource(ares, &agpio)) @@ -217,7 +218,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, type = FIELD_GET(INT3472_GPIO_DSM_TYPE, obj->integer.value); - int3472_get_func_and_polarity(type, &func, &polarity); + int3472_get_func_and_polarity(type, &func, &gpio_flags); pin = FIELD_GET(INT3472_GPIO_DSM_PIN, obj->integer.value); /* Pin field is not really used under Windows and wraps around at 8 bits */ @@ -227,16 +228,16 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, active_value = FIELD_GET(INT3472_GPIO_DSM_SENSOR_ON_VAL, obj->integer.value); if (!active_value) - polarity ^= GPIO_ACTIVE_LOW; + gpio_flags ^= GPIO_ACTIVE_LOW; dev_dbg(int3472->dev, "%s %s pin %d active-%s\n", func, agpio->resource_source.string_ptr, agpio->pin_table[0], - str_high_low(polarity == GPIO_ACTIVE_HIGH)); + str_high_low(gpio_flags == GPIO_ACTIVE_HIGH)); switch (type) { case INT3472_GPIO_TYPE_RESET: case INT3472_GPIO_TYPE_POWERDOWN: - ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity); + ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, gpio_flags); if (ret) err_msg = "Failed to map GPIO pin to sensor\n"; @@ -244,7 +245,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, case INT3472_GPIO_TYPE_CLK_ENABLE: case INT3472_GPIO_TYPE_PRIVACY_LED: case INT3472_GPIO_TYPE_POWER_ENABLE: - gpio = skl_int3472_gpiod_get_from_temp_lookup(int3472, agpio, func, polarity); + gpio = skl_int3472_gpiod_get_from_temp_lookup(int3472, agpio, func, gpio_flags); if (IS_ERR(gpio)) { ret = PTR_ERR(gpio); err_msg = "Failed to get GPIO\n"; From 569617dbbd06286fb73f3f1c2ac91e51d863c7de Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 11 Feb 2025 09:28:40 +0200 Subject: [PATCH 4/5] platform/x86: int3472: Call "reset" GPIO "enable" for INT347E MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The DT bindings for ov7251 specify "enable" GPIO (xshutdown in documentation) but the int3472 indiscriminately provides this as a "reset" GPIO to sensor drivers. Take this into account by assigning it as "enable" with active high polarity for INT347E devices, i.e. ov7251. "reset" with active low polarity remains the default GPIO name for other devices. Signed-off-by: Sakari Ailus Reviewed-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20250211072841.7713-3-sakari.ailus@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/int3472/discrete.c | 52 +++++++++++++++++-- 1 file changed, 48 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index b891b064fbf7..092252eb95a8 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -2,6 +2,7 @@ /* Author: Dan Scally */ #include +#include #include #include #include @@ -122,10 +123,53 @@ skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472, return desc; } -static void int3472_get_func_and_polarity(u8 type, const char **func, - unsigned long *gpio_flags) +/** + * struct int3472_gpio_map - Map GPIOs to whatever is expected by the + * sensor driver (as in DT bindings) + * @hid: The ACPI HID of the device without the instance number e.g. INT347E + * @type_from: The GPIO type from ACPI ?SDT + * @type_to: The assigned GPIO type, typically same as @type_from + * @func: The function, e.g. "enable" + * @polarity_low: GPIO_ACTIVE_LOW true if the @polarity_low is true, + * GPIO_ACTIVE_HIGH otherwise + */ +struct int3472_gpio_map { + const char *hid; + u8 type_from; + u8 type_to; + bool polarity_low; + const char *func; +}; + +static const struct int3472_gpio_map int3472_gpio_map[] = { + { "INT347E", INT3472_GPIO_TYPE_RESET, INT3472_GPIO_TYPE_RESET, false, "enable" }, +}; + +static void int3472_get_func_and_polarity(struct acpi_device *adev, u8 *type, + const char **func, unsigned long *gpio_flags) { - switch (type) { + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(int3472_gpio_map); i++) { + /* + * Map the firmware-provided GPIO to whatever a driver expects + * (as in DT bindings). First check if the type matches with the + * GPIO map, then further check that the device _HID matches. + */ + if (*type != int3472_gpio_map[i].type_from) + continue; + + if (!acpi_dev_hid_uid_match(adev, int3472_gpio_map[i].hid, NULL)) + continue; + + *type = int3472_gpio_map[i].type_to; + *gpio_flags = int3472_gpio_map[i].polarity_low ? + GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH; + *func = int3472_gpio_map[i].func; + return; + } + + switch (*type) { case INT3472_GPIO_TYPE_RESET: *func = "reset"; *gpio_flags = GPIO_ACTIVE_LOW; @@ -218,7 +262,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, type = FIELD_GET(INT3472_GPIO_DSM_TYPE, obj->integer.value); - int3472_get_func_and_polarity(type, &func, &gpio_flags); + int3472_get_func_and_polarity(int3472->sensor, &type, &func, &gpio_flags); pin = FIELD_GET(INT3472_GPIO_DSM_PIN, obj->integer.value); /* Pin field is not really used under Windows and wraps around at 8 bits */ From b3e127dacad60a384c92baafdc74f1508bf7dd47 Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Tue, 11 Feb 2025 12:36:11 -0500 Subject: [PATCH 5/5] platform/x86: thinkpad_acpi: Fix registration of tpacpi platform driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The recent platform profile changes prevent the tpacpi platform driver from registering. This error is seen in the kernel logs, and the various tpacpi entries are not created: [ 7550.642171] platform thinkpad_acpi: Resources present before probing This happens because devm_platform_profile_register() is called before tpacpi_pdev probes (thanks to Kurt Borja for identifying the root cause). For now revert back to the old platform_profile_register to fix the issue. This is quick fix and will be re-implemented later as more testing is needed for full solution. Tested on X1 Carbon G12. Fixes: 31658c916fa6 ("platform/x86: thinkpad_acpi: Use devm_platform_profile_register()") Signed-off-by: Mark Pearson Reviewed-by: Kurt Borja Link: https://lore.kernel.org/r/20250211173620.16522-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/thinkpad_acpi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 99cdea723d32..72a10ed2017c 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -10668,8 +10668,8 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) "DYTC version %d: thermal mode available\n", dytc_version); /* Create platform_profile structure and register */ - tpacpi_pprof = devm_platform_profile_register(&tpacpi_pdev->dev, "thinkpad-acpi", - NULL, &dytc_profile_ops); + tpacpi_pprof = platform_profile_register(&tpacpi_pdev->dev, "thinkpad-acpi-profile", + NULL, &dytc_profile_ops); /* * If for some reason platform_profiles aren't enabled * don't quit terminally. @@ -10687,8 +10687,15 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm) return 0; } +static void dytc_profile_exit(void) +{ + if (!IS_ERR_OR_NULL(tpacpi_pprof)) + platform_profile_remove(tpacpi_pprof); +} + static struct ibm_struct dytc_profile_driver_data = { .name = "dytc-profile", + .exit = dytc_profile_exit, }; /*************************************************************************