6.6-stable review patch. If anyone has any objections, please let me know.
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From: Gergo Koteles soyer@irl.hu
[ Upstream commit cde7886b35176d56e72bfc68dc104fa08e7b072c ]
Some models need to trigger the EC after each YMC event for the yoga mode control to work properly. EC triggering consist of a VPC call from the lenovo-ymc module. Except for this, all VPC calls are in the ideapad-laptop module.
Since ideapad-laptop has a notification chain, a new YMC_EVENT action can be added and triggered from the lenovo-ymc module. Then the ideapad-laptop can trigger the EC.
If the triggering is in the ideapad-laptop module, then the ec_trigger module parameter should be there as well.
Move the ymc_trigger_ec functionality and the ec_trigger module parameter to the ideapad-laptop module.
Signed-off-by: Gergo Koteles soyer@irl.hu Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Link: https://lore.kernel.org/r/d980ab3ac32b5e554f456b0ff17279bfdbe2a203.172189874... Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Stable-dep-of: 5808c3421695 ("platform/x86: ideapad-laptop: use usleep_range() for EC polling") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/Kconfig | 1 + drivers/platform/x86/ideapad-laptop.c | 49 ++++++++++++++++++++++ drivers/platform/x86/ideapad-laptop.h | 4 ++ drivers/platform/x86/lenovo-ymc.c | 60 +-------------------------- 4 files changed, 56 insertions(+), 58 deletions(-)
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 07eea525091b0..1fd57eb867662 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -466,6 +466,7 @@ config LENOVO_YMC tristate "Lenovo Yoga Tablet Mode Control" depends on ACPI_WMI depends on INPUT + depends on IDEAPAD_LAPTOP select INPUT_SPARSEKMAP help This driver maps the Tablet Mode Control switch to SW_TABLET_MODE input diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index e21b4dcfe1ddd..3d23c4f908426 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -145,6 +145,7 @@ struct ideapad_private { bool touchpad_ctrl_via_ec : 1; bool ctrl_ps2_aux_port : 1; bool usb_charging : 1; + bool ymc_ec_trigger : 1; } features; struct { bool initialized; @@ -188,6 +189,12 @@ MODULE_PARM_DESC(touchpad_ctrl_via_ec, "Enable registering a 'touchpad' sysfs-attribute which can be used to manually " "tell the EC to enable/disable the touchpad. This may not work on all models.");
+static bool ymc_ec_trigger __read_mostly; +module_param(ymc_ec_trigger, bool, 0444); +MODULE_PARM_DESC(ymc_ec_trigger, + "Enable EC triggering work-around to force emitting tablet mode events. " + "If you need this please report this to: platform-driver-x86@vger.kernel.org"); + /* * shared data */ @@ -1501,10 +1508,50 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv, bool send_ priv->r_touchpad_val = value; }
+static const struct dmi_system_id ymc_ec_trigger_quirk_dmi_table[] = { + { + /* Lenovo Yoga 7 14ARB7 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "82QF"), + }, + }, + { + /* Lenovo Yoga 7 14ACN6 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "82N7"), + }, + }, + { } +}; + +static void ideapad_laptop_trigger_ec(void) +{ + struct ideapad_private *priv; + int ret; + + guard(mutex)(&ideapad_shared_mutex); + + priv = ideapad_shared; + if (!priv) + return; + + if (!priv->features.ymc_ec_trigger) + return; + + ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_YMC, 1); + if (ret) + dev_warn(&priv->platform_device->dev, "Could not write YMC: %d\n", ret); +} + static int ideapad_laptop_nb_notify(struct notifier_block *nb, unsigned long action, void *data) { switch (action) { + case IDEAPAD_LAPTOP_YMC_EVENT: + ideapad_laptop_trigger_ec(); + break; }
return 0; @@ -1670,6 +1717,8 @@ static void ideapad_check_features(struct ideapad_private *priv) priv->features.ctrl_ps2_aux_port = ctrl_ps2_aux_port || dmi_check_system(ctrl_ps2_aux_port_list); priv->features.touchpad_ctrl_via_ec = touchpad_ctrl_via_ec; + priv->features.ymc_ec_trigger = + ymc_ec_trigger || dmi_check_system(ymc_ec_trigger_quirk_dmi_table);
if (!read_ec_data(handle, VPCCMD_R_FAN, &val)) priv->features.fan_mode = true; diff --git a/drivers/platform/x86/ideapad-laptop.h b/drivers/platform/x86/ideapad-laptop.h index 3eb0dcd6bf7ba..948cc61800a95 100644 --- a/drivers/platform/x86/ideapad-laptop.h +++ b/drivers/platform/x86/ideapad-laptop.h @@ -14,6 +14,10 @@ #include <linux/errno.h> #include <linux/notifier.h>
+enum ideapad_laptop_notifier_actions { + IDEAPAD_LAPTOP_YMC_EVENT, +}; + int ideapad_laptop_register_notifier(struct notifier_block *nb); int ideapad_laptop_unregister_notifier(struct notifier_block *nb); void ideapad_laptop_call_notifier(unsigned long action, void *data); diff --git a/drivers/platform/x86/lenovo-ymc.c b/drivers/platform/x86/lenovo-ymc.c index ef2c267ab485c..bd9f95404c7cb 100644 --- a/drivers/platform/x86/lenovo-ymc.c +++ b/drivers/platform/x86/lenovo-ymc.c @@ -20,32 +20,10 @@ #define LENOVO_YMC_QUERY_INSTANCE 0 #define LENOVO_YMC_QUERY_METHOD 0x01
-static bool ec_trigger __read_mostly; -module_param(ec_trigger, bool, 0444); -MODULE_PARM_DESC(ec_trigger, "Enable EC triggering work-around to force emitting tablet mode events"); - static bool force; module_param(force, bool, 0444); MODULE_PARM_DESC(force, "Force loading on boards without a convertible DMI chassis-type");
-static const struct dmi_system_id ec_trigger_quirk_dmi_table[] = { - { - /* Lenovo Yoga 7 14ARB7 */ - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_NAME, "82QF"), - }, - }, - { - /* Lenovo Yoga 7 14ACN6 */ - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_NAME, "82N7"), - }, - }, - { } -}; - static const struct dmi_system_id allowed_chasis_types_dmi_table[] = { { .matches = { @@ -62,21 +40,8 @@ static const struct dmi_system_id allowed_chasis_types_dmi_table[] = {
struct lenovo_ymc_private { struct input_dev *input_dev; - struct acpi_device *ec_acpi_dev; };
-static void lenovo_ymc_trigger_ec(struct wmi_device *wdev, struct lenovo_ymc_private *priv) -{ - int err; - - if (!priv->ec_acpi_dev) - return; - - err = write_ec_cmd(priv->ec_acpi_dev->handle, VPCCMD_W_YMC, 1); - if (err) - dev_warn(&wdev->dev, "Could not write YMC: %d\n", err); -} - static const struct key_entry lenovo_ymc_keymap[] = { /* Ignore the uninitialized state */ { KE_IGNORE, 0x00 }, @@ -127,11 +92,9 @@ static void lenovo_ymc_notify(struct wmi_device *wdev, union acpi_object *data)
free_obj: kfree(obj); - lenovo_ymc_trigger_ec(wdev, priv); + ideapad_laptop_call_notifier(IDEAPAD_LAPTOP_YMC_EVENT, &code); }
-static void acpi_dev_put_helper(void *p) { acpi_dev_put(p); } - static int lenovo_ymc_probe(struct wmi_device *wdev, const void *ctx) { struct lenovo_ymc_private *priv; @@ -145,29 +108,10 @@ static int lenovo_ymc_probe(struct wmi_device *wdev, const void *ctx) return -ENODEV; }
- ec_trigger |= dmi_check_system(ec_trigger_quirk_dmi_table); - priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM;
- if (ec_trigger) { - pr_debug("Lenovo YMC enable EC triggering.\n"); - priv->ec_acpi_dev = acpi_dev_get_first_match_dev("VPC2004", NULL, -1); - - if (!priv->ec_acpi_dev) { - dev_err(&wdev->dev, "Could not find EC ACPI device.\n"); - return -ENODEV; - } - err = devm_add_action_or_reset(&wdev->dev, - acpi_dev_put_helper, priv->ec_acpi_dev); - if (err) { - dev_err(&wdev->dev, - "Could not clean up EC ACPI device: %d\n", err); - return err; - } - } - input_dev = devm_input_allocate_device(&wdev->dev); if (!input_dev) return -ENOMEM; @@ -194,7 +138,6 @@ static int lenovo_ymc_probe(struct wmi_device *wdev, const void *ctx) dev_set_drvdata(&wdev->dev, priv);
/* Report the state for the first time on probe */ - lenovo_ymc_trigger_ec(wdev, priv); lenovo_ymc_notify(wdev, NULL); return 0; } @@ -219,3 +162,4 @@ module_wmi_driver(lenovo_ymc_driver); MODULE_AUTHOR("Gergo Koteles soyer@irl.hu"); MODULE_DESCRIPTION("Lenovo Yoga Mode Control driver"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(IDEAPAD_LAPTOP);