From 670c7e5d7f283da8ab23350b41d4c71f08aee3d9 Mon Sep 17 00:00:00 2001 From: Adam Williamson Date: Sep 27 2014 22:06:12 +0000 Subject: new acpi dep patch, couple misc fixes from jan-michael brummer --- diff --git a/RFC-ACPI-Add-_DEP-Operation-Region-Dependencies-support-to-fix-battery-issue-on-the-Asus-T100TA.patch b/RFC-ACPI-Add-_DEP-Operation-Region-Dependencies-support-to-fix-battery-issue-on-the-Asus-T100TA.patch new file mode 100644 index 0000000..cd635be --- /dev/null +++ b/RFC-ACPI-Add-_DEP-Operation-Region-Dependencies-support-to-fix-battery-issue-on-the-Asus-T100TA.patch @@ -0,0 +1,229 @@ +From patchwork Tue Sep 23 07:06:43 2014 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [RFC] ACPI: Add _DEP(Operation Region Dependencies) support to fix + battery issue on the Asus T100TA +From: "lan,Tianyu" +X-Patchwork-Id: 4953801 +Message-Id: <1411456003-29541-1-git-send-email-tianyu.lan@intel.com> +To: rjw@rjwysocki.net, lenb@kernel.org, + mika.westerberg@linux.intel.com, wsa@the-dreams.de, + robert.moore@intel.com, lv.zheng@intel.com +Cc: Lan Tianyu , linux-acpi@vger.kernel.org, + linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, devel@acpica.org +Date: Tue, 23 Sep 2014 15:06:43 +0800 + +ACPI 5.0 introduces _DEP to designate device objects that OSPM should +assign a higher priority in start ordering due to future operation region +accesses. + +On Asus T100TA, ACPI battery info are read from a I2C slave device via +I2C operation region. Before I2C operation region handler is installed, +battery _STA always returns 0. There is a _DEP method of designating +start order under battery device node. + +This patch is to implement _DEP feature to fix battery issue on the Asus T100TA. +Introducing acpi_bus_dep_device_list and adding dep_present flags in the struct +acpi_device. During ACPI namespace scan, all devices with _DEP support will be put +into the new list and those devices' dep_present flag will be set. Driver's probe() +should return EPROBE_DEFER when find dep_present is set. When I2C operation +region handler is installed, check all devices on the new list. Remove the one from +list if _DEP condition is met and clear its dep_present flag and do acpi_bus_attch() +for the device in order to resolve battery _STA issue on the Asus T100TA. + +Signed-off-by: Lan Tianyu + +--- +drivers/acpi/battery.c | 4 +++ + drivers/acpi/scan.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++++ + drivers/i2c/i2c-acpi.c | 1 + + include/acpi/acpi_bus.h | 2 ++ + include/linux/acpi.h | 3 ++ + 5 files changed, 94 insertions(+) + +diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c +index 1c162e7..c0a68ce 100644 +--- a/drivers/acpi/battery.c ++++ b/drivers/acpi/battery.c +@@ -1194,6 +1194,10 @@ static int acpi_battery_add(struct acpi_device *device) + + if (!device) + return -EINVAL; ++ ++ if (device->dep_present) ++ return -EPROBE_DEFER; ++ + battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL); + if (!battery) + return -ENOMEM; +diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c +index 3bf7764..a26dbb3 100644 +--- a/drivers/acpi/scan.c ++++ b/drivers/acpi/scan.c +@@ -36,6 +36,7 @@ bool acpi_force_hot_remove; + + static const char *dummy_hid = "device"; + ++static LIST_HEAD(acpi_bus_dep_device_list); + static LIST_HEAD(acpi_bus_id_list); + static DEFINE_MUTEX(acpi_scan_lock); + static LIST_HEAD(acpi_scan_handlers_list); +@@ -43,6 +44,11 @@ DEFINE_MUTEX(acpi_device_lock); + LIST_HEAD(acpi_wakeup_device_list); + static DEFINE_MUTEX(acpi_hp_context_lock); + ++struct acpi_dep_data { ++ struct list_head node; ++ struct acpi_device *adev; ++}; ++ + struct acpi_device_bus_id{ + char bus_id[15]; + unsigned int instance_no; +@@ -2048,6 +2054,32 @@ static void acpi_scan_init_hotplug(struct acpi_device *adev) + } + } + ++static void acpi_device_dep_initialize(struct acpi_device * adev) ++{ ++ struct acpi_dep_data *dep; ++ acpi_status status; ++ ++ if (!acpi_has_method(adev->handle, "_DEP")) ++ return; ++ ++ status = acpi_evaluate_reference(adev->handle, "_DEP", NULL, ++ &adev->dep_devices); ++ if (ACPI_FAILURE(status)) { ++ dev_err(&adev->dev, "Fail to evaluate _DEP.\n"); ++ return; ++ } ++ ++ dep = kzalloc(sizeof(struct acpi_dep_data), GFP_KERNEL); ++ if (!dep) { ++ dev_err(&adev->dev, "Memory allocation error.\n"); ++ return; ++ } ++ ++ dep->adev = adev; ++ adev->dep_present = true; ++ list_add_tail(&dep->node , &acpi_bus_dep_device_list); ++} ++ + static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, + void *not_used, void **return_value) + { +@@ -2074,6 +2106,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, + return AE_CTRL_DEPTH; + + acpi_scan_init_hotplug(device); ++ acpi_device_dep_initialize(device); + + out: + if (!*return_value) +@@ -2191,6 +2224,57 @@ static void acpi_bus_attach(struct acpi_device *device) + acpi_bus_attach(child); + } + ++static int acpi_device_dep_check(struct acpi_device *adev) ++{ ++ struct acpi_device *dep_adev; ++ struct acpi_device_physical_node *pn; ++ int i; ++ ++ for (i = 0; i < adev->dep_devices.count; i++) { ++ dep_adev = acpi_bus_get_acpi_device( ++ adev->dep_devices.handles[i]); ++ ++ if (!dep_adev) ++ return -ENODEV; ++ ++ /* Check acpi device driver probing */ ++ if (dep_adev->dev.driver) ++ continue; ++ ++ if (!dep_adev->physical_node_count) ++ return -ENODEV; ++ ++ /* Check physcial device node driver probing */ ++ mutex_lock(&dep_adev->physical_node_lock); ++ list_for_each_entry(pn, &dep_adev->physical_node_list, node) { ++ if (pn->dev->driver) { ++ mutex_unlock(&dep_adev->physical_node_lock); ++ continue; ++ } ++ } ++ mutex_unlock(&dep_adev->physical_node_lock); ++ return -EFAULT; ++ } ++ ++ return 0; ++} ++ ++int acpi_walk_dep_device_list(void) ++{ ++ struct acpi_dep_data *dep, *tmp; ++ ++ list_for_each_entry_safe(dep, tmp, &acpi_bus_dep_device_list, node) { ++ if (!acpi_device_dep_check(dep->adev)) { ++ dep->adev->dep_present = false; ++ acpi_bus_attach(dep->adev); ++ list_del(&dep->node); ++ kfree(dep); ++ } ++ } ++ return 0; ++} ++EXPORT_SYMBOL_GPL(acpi_walk_dep_device_list); ++ + /** + * acpi_bus_scan - Add ACPI device node objects in a given namespace scope. + * @handle: Root of the namespace scope to scan. +diff --git a/drivers/i2c/i2c-acpi.c b/drivers/i2c/i2c-acpi.c +index 0dbc18c..fdc8dc8 100644 +--- a/drivers/i2c/i2c-acpi.c ++++ b/drivers/i2c/i2c-acpi.c +@@ -339,6 +339,7 @@ int acpi_i2c_install_space_handler(struct i2c_adapter *adapter) + return -ENOMEM; + } + ++ acpi_walk_dep_device_list(); + return 0; + } + +diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h +index c1c9de1..c1e7055 100644 +--- a/include/acpi/acpi_bus.h ++++ b/include/acpi/acpi_bus.h +@@ -357,7 +357,9 @@ struct acpi_device { + struct acpi_hotplug_context *hp; + struct acpi_driver *driver; + void *driver_data; ++ bool dep_present; + struct device dev; ++ struct acpi_handle_list dep_devices; + unsigned int physical_node_count; + struct list_head physical_node_list; + struct mutex physical_node_lock; +diff --git a/include/linux/acpi.h b/include/linux/acpi.h +index 807cbc4..c9a504b 100644 +--- a/include/linux/acpi.h ++++ b/include/linux/acpi.h +@@ -431,6 +431,7 @@ static inline bool acpi_driver_match_device(struct device *dev, + + int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); + int acpi_device_modalias(struct device *, char *, int); ++int acpi_walk_dep_device_list(void); + + #define ACPI_PTR(_ptr) (_ptr) + +@@ -449,6 +450,8 @@ static inline const char *acpi_dev_name(struct acpi_device *adev) + + static inline void acpi_early_init(void) { } + ++static inline int acpi_walk_dep_device_list(void) { } ++ + static inline int early_acpi_boot_init(void) + { + return 0; diff --git a/kernel.spec b/kernel.spec index 7bd0529..f172a54 100644 --- a/kernel.spec +++ b/kernel.spec @@ -632,15 +632,24 @@ Patch30000: kernel-arm64.patch # AWB PATCH DEFINITIONS (BAYTRAIL) -# http://www.spinics.net/lists/linux-i2c/msg15201.html -Patch31010: 0001-ACPI-temporary-dep-solution-for-battery-support.patch +# https://patchwork.kernel.org/patch/4953801/ +# https://bugzilla.kernel.org/show_bug.cgi?id=69011 +Patch31010: RFC-ACPI-Add-_DEP-Operation-Region-Dependencies-support-to-fix-battery-issue-on-the-Asus-T100TA.patch # Add SDIO ID for the V8P wireless adapter to ath6kl driver -Patch31200: support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch +Patch31011: support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch # UEFI boot fixes from Matt Fleming, try to fix # https://bugzilla.kernel.org/show_bug.cgi?id=84241 -Patch21203: UEFI-big-arse-revert.patch +Patch31012: UEFI-big-arse-revert.patch + +# Map 'Home' button on Venue 8 Pro to left meta key (i.e. "Start") +# from Jan-Michael Brummer +Patch31013: soc_button_use_leftmeta.patch + +# Enable mic on RT5640 (i.e. lots of Baytrail hardware, we hope) +# from Jan-Michael Brummer +Patch31014: rt5640_enable_mic.patch # END OF AWB PATCH DEFINITIONS @@ -1386,9 +1395,11 @@ ApplyPatch kernel-arm64.patch -R # END OF FEDORA PATCH APPLICATIONS # AWB (BAYTRAIL) PATCH APPLICATIONS -ApplyPatch 0001-ACPI-temporary-dep-solution-for-battery-support.patch +ApplyPatch RFC-ACPI-Add-_DEP-Operation-Region-Dependencies-support-to-fix-battery-issue-on-the-Asus-T100TA.patch ApplyPatch support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch ApplyPatch UEFI-big-arse-revert.patch +ApplyPatch rt5640_enable_mic.patch +ApplyPatch soc_button_use_leftmeta.patch # END OF AWB (BAYTRAIL) PATCH APPLICATIONS diff --git a/rt5640_enable_mic.patch b/rt5640_enable_mic.patch new file mode 100644 index 0000000..cfb8718 --- /dev/null +++ b/rt5640_enable_mic.patch @@ -0,0 +1,13 @@ +diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c +index f1ec6e6..e7e480d 100644 +--- a/sound/soc/codecs/rt5640.c ++++ b/sound/soc/codecs/rt5640.c +@@ -2195,6 +2195,7 @@ static int rt5640_i2c_probe(struct i2c_client *i2c, + regmap_update_bits(rt5640->regmap, RT5640_IN3_IN4, + RT5640_IN_DF2, RT5640_IN_DF2); + ++ rt5640->pdata.dmic_en = 1; + if (rt5640->pdata.dmic_en) { + regmap_update_bits(rt5640->regmap, RT5640_GPIO_CTRL1, + RT5640_GP2_PIN_MASK, RT5640_GP2_PIN_DMIC1_SCL); + \ No newline at end of file diff --git a/soc_button_use_leftmeta.patch b/soc_button_use_leftmeta.patch new file mode 100644 index 0000000..605a823 --- /dev/null +++ b/soc_button_use_leftmeta.patch @@ -0,0 +1,14 @@ +diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c +index e34dfc2..0472e3a 100644 +--- a/drivers/input/misc/soc_button_array.c ++++ b/drivers/input/misc/soc_button_array.c +@@ -185,7 +185,7 @@ static int soc_button_pnp_probe(struct pnp_dev *pdev, + + static struct soc_button_info soc_button_PNP0C40[] = { + { "power", 0, EV_KEY, KEY_POWER, false, true }, +- { "home", 1, EV_KEY, KEY_HOME, false, true }, ++ { "home", 1, EV_KEY, KEY_LEFTMETA, false, true }, + { "volume_up", 2, EV_KEY, KEY_VOLUMEUP, true, false }, + { "volume_down", 3, EV_KEY, KEY_VOLUMEDOWN, true, false }, + { "rotation_lock", 4, EV_SW, SW_ROTATE_LOCK, false, false }, + \ No newline at end of file