From: gregkh@linuxfoundation.org
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Andy Shevchenko <andy.shevchenko@gmail.com>,
Hans de Goede <hdegoede@redhat.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 29/39] platform/x86: acer-wmi: Add new force_caps module parameter
Date: Wed, 10 Mar 2021 14:24:37 +0100 [thread overview]
Message-ID: <20210310132320.626710165@linuxfoundation.org> (raw)
In-Reply-To: <20210310132319.708237392@linuxfoundation.org>
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
From: Hans de Goede <hdegoede@redhat.com>
[ Upstream commit 39aa009bb66f9d5fbd1e58ca4aa03d6e6f2c9915 ]
Add a new force_caps module parameter to allow overriding the drivers
builtin capability detection mechanism.
This can be used to for example:
-Disable rfkill functionality on devices where there is an AA OEM DMI
record advertising non functional rfkill switches
-Force loading of the driver on devices with a missing AA OEM DMI record
Note that force_caps is -1 when unset, this allows forcing the
capability field to 0, which results in acer-wmi only providing WMI
hotkey handling while disabling all other (led, rfkill, backlight)
functionality.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20201019185628.264473-4-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/acer-wmi.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index b95dce2475ab..2e77ac458bab 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -246,6 +246,7 @@ static int mailled = -1;
static int brightness = -1;
static int threeg = -1;
static int force_series;
+static int force_caps = -1;
static bool ec_raw_mode;
static bool has_type_aa;
static u16 commun_func_bitmap;
@@ -255,11 +256,13 @@ module_param(mailled, int, 0444);
module_param(brightness, int, 0444);
module_param(threeg, int, 0444);
module_param(force_series, int, 0444);
+module_param(force_caps, int, 0444);
module_param(ec_raw_mode, bool, 0444);
MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
MODULE_PARM_DESC(force_series, "Force a different laptop series");
+MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
struct acer_data {
@@ -2228,7 +2231,7 @@ static int __init acer_wmi_init(void)
}
/* WMID always provides brightness methods */
interface->capability |= ACER_CAP_BRIGHTNESS;
- } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa) {
+ } else if (!wmi_has_guid(WMID_GUID2) && interface && !has_type_aa && force_caps == -1) {
pr_err("No WMID device detection method found\n");
return -ENODEV;
}
@@ -2258,6 +2261,9 @@ static int __init acer_wmi_init(void)
if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
interface->capability &= ~ACER_CAP_BRIGHTNESS;
+ if (force_caps != -1)
+ interface->capability = force_caps;
+
if (wmi_has_guid(WMID_GUID3)) {
if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
pr_warn("Cannot enable RF Button Driver\n");
--
2.30.1
next prev parent reply other threads:[~2021-03-10 13:31 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 13:24 [PATCH 4.19 00/39] 4.19.180-rc1 review gregkh
2021-03-10 13:24 ` [PATCH 4.19 01/39] btrfs: raid56: simplify tracking of Q stripe presence gregkh
2021-03-10 13:24 ` [PATCH 4.19 02/39] btrfs: fix raid6 qstripe kmap gregkh
2021-03-10 13:24 ` [PATCH 4.19 03/39] btrfs: validate qgroup inherit for SNAP_CREATE_V2 ioctl gregkh
2021-03-10 13:24 ` [PATCH 4.19 04/39] btrfs: free correct amount of space in btrfs_delayed_inode_reserve_metadata gregkh
2021-03-10 13:24 ` [PATCH 4.19 05/39] btrfs: unlock extents in btrfs_zero_range in case of quota reservation errors gregkh
2021-03-10 13:24 ` [PATCH 4.19 06/39] PM: runtime: Update device status before letting suppliers suspend gregkh
2021-03-10 13:24 ` [PATCH 4.19 07/39] dm bufio: subtract the number of initial sectors in dm_bufio_get_device_size gregkh
2021-03-10 13:24 ` [PATCH 4.19 08/39] drm/amdgpu: fix parameter error of RREG32_PCIE() in amdgpu_regs_pcie gregkh
2021-03-10 13:24 ` [PATCH 4.19 09/39] usbip: tools: fix build error for multiple definition gregkh
2021-03-10 13:24 ` [PATCH 4.19 10/39] Revert "zram: close udev startup race condition as default groups" gregkh
2021-03-10 13:24 ` [PATCH 4.19 11/39] block: genhd: add groups argument to device_add_disk gregkh
2021-03-10 13:24 ` [PATCH 4.19 12/39] nvme: register ns_id attributes as default sysfs groups gregkh
2021-03-10 13:24 ` [PATCH 4.19 13/39] aoe: register default groups with device_add_disk() gregkh
2021-03-10 13:24 ` [PATCH 4.19 14/39] zram: " gregkh
2021-03-10 13:24 ` [PATCH 4.19 15/39] virtio-blk: modernize sysfs attribute creation gregkh
2021-03-10 13:24 ` [PATCH 4.19 16/39] ALSA: ctxfi: cthw20k2: fix mask on conf to allow 4 bits gregkh
2021-03-10 13:24 ` [PATCH 4.19 17/39] RDMA/rxe: Fix missing kconfig dependency on CRYPTO gregkh
2021-03-10 13:24 ` [PATCH 4.19 18/39] rsxx: Return -EFAULT if copy_to_user() fails gregkh
2021-03-10 13:24 ` [PATCH 4.19 19/39] dm verity: fix FEC for RS roots unaligned to block size gregkh
2021-03-10 13:24 ` [PATCH 4.19 20/39] r8169: fix resuming from suspend on RTL8105e if machine runs on battery gregkh
2021-03-10 13:24 ` [PATCH 4.19 21/39] net: dsa: add GRO support via gro_cells gregkh
2021-03-10 13:24 ` [PATCH 4.19 22/39] dm table: fix iterate_devices based device capability checks gregkh
2021-03-10 13:24 ` [PATCH 4.19 23/39] dm table: fix DAX " gregkh
2021-03-10 13:24 ` [PATCH 4.19 24/39] dm table: fix zoned " gregkh
2021-03-10 13:24 ` [PATCH 4.19 25/39] iommu/amd: Fix sleeping in atomic in increase_address_space() gregkh
2021-03-10 13:24 ` [PATCH 4.19 26/39] mwifiex: pcie: skip cancel_work_sync() on reset failure path gregkh
2021-03-10 13:24 ` [PATCH 4.19 27/39] platform/x86: acer-wmi: Cleanup ACER_CAP_FOO defines gregkh
2021-03-10 13:24 ` [PATCH 4.19 28/39] platform/x86: acer-wmi: Cleanup accelerometer device handling gregkh
2021-03-10 13:24 ` gregkh [this message]
2021-03-10 13:24 ` [PATCH 4.19 30/39] platform/x86: acer-wmi: Add ACER_CAP_SET_FUNCTION_MODE capability flag gregkh
2021-03-10 13:24 ` [PATCH 4.19 31/39] platform/x86: acer-wmi: Add support for SW_TABLET_MODE on Switch devices gregkh
2021-03-10 13:24 ` [PATCH 4.19 32/39] platform/x86: acer-wmi: Add ACER_CAP_KBD_DOCK quirk for the Aspire Switch 10E SW3-016 gregkh
2021-03-10 13:24 ` [PATCH 4.19 33/39] HID: mf: add support for 0079:1846 Mayflash/Dragonrise USB Gamecube Adapter gregkh
2021-03-10 13:24 ` [PATCH 4.19 34/39] media: cx23885: add more quirks for reset DMA on some AMD IOMMU gregkh
2021-03-10 13:24 ` [PATCH 4.19 35/39] ASoC: Intel: bytcr_rt5640: Add quirk for ARCHOS Cesium 140 gregkh
2021-03-10 13:24 ` [PATCH 4.19 36/39] PCI: Add function 1 DMA alias quirk for Marvell 9215 SATA controller gregkh
2021-03-10 13:24 ` [PATCH 4.19 37/39] misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom gregkh
2021-03-10 13:24 ` [PATCH 4.19 38/39] drm/msm/a5xx: Remove overwriting A5XX_PC_DBG_ECO_CNTL register gregkh
2021-03-10 13:24 ` [PATCH 4.19 39/39] mmc: sdhci-of-dwcmshc: set SDHCI_QUIRK2_PRESET_VALUE_BROKEN gregkh
2021-03-10 20:22 ` [PATCH 4.19 00/39] 4.19.180-rc1 review Pavel Machek
2021-03-10 22:01 ` Shuah Khan
2021-03-10 23:51 ` Guenter Roeck
2021-03-11 2:39 ` Samuel Zou
2021-03-11 4:04 ` Ross Schmidt
2021-03-11 7:47 ` Naresh Kamboju
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