Draft: p4wifi and glide dt-schema improvements #102
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Add blocking_notifier_call_chain_empty() that returns true if call chain is empty and false otherwise. Signed-off-by: Dmitry Osipenko <[email protected]>
Add atomic/blocking_notifier_has_unique_priority() helpers which return true if given handler has unique priority in the notifier chain. Signed-off-by: Dmitry Osipenko <[email protected]>
Correct s/implemenations/implementations/ in <reboot.h>. Signed-off-by: Dmitry Osipenko <[email protected]>
It doesn't make sense to register restart handlers with the same priority, normally it's a direct sign of a problem. Add sanity check which ensures that there are no two restart handlers registered with the same priority. Signed-off-by: Dmitry Osipenko <[email protected]>
Emit warning if unregister_restart_handler() fails since it never should fail. This will ease further API development by catching dumb mistakes. Signed-off-by: Dmitry Osipenko <[email protected]>
There is no need to annotate function prototypes with 'extern', it makes code less readable. Remove unnecessary annotations from <reboot.h>. Signed-off-by: Dmitry Osipenko <[email protected]>
SoC platforms often have multiple options for performing of system's power-off and restart operations. Meanwhile today's kernel is limited to a single option. Add combined power-off+restart handler call chain API, which is inspired by the restart API. The new API provides both power-off and restart functionality, it's designed with reliability, simplicity and extensibility in mind. The old pm_power_off method will be kept around till all users are converted to the new API. Current restart API will be replaced with the new unified API since new API is its superset. The restart functionality of the power-handler API is built upon the existing restart-notifier APIs. In order to ease conversion to the new API, convenient helpers are added for the common use-cases. They will reduce amount of boilerplate code and remove global variables. These helpers preserve old behaviour where only one power-off handler was executed. Users of the new API should explicitly opt-in to allow power-off chaining by enabling the corresponding flag of power_handler structure. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use do_kernel_power_off() that invokes chained power-off handlers. It also invokes legacy pm_power_off() for now, which will be removed once all drivers will be converted to the new power-off API. Signed-off-by: Dmitry Osipenko <[email protected]>
Kernel now supports chained power-off handlers. Use register_power_off_handler() that registers power-off handlers and do_kernel_power_off() that invokes chained power-off handlers. Legacy pm_power_off() will be removed once all drivers will be converted to the new power-off API. Normally arch code should adopt only the do_kernel_power_off() at first, but m68k is a special case because it uses pm_power_off() "inside out", i.e. it assigns machine_power_off() to pm_power_off, while it's machine_power_off() that should invoke the pm_power_off(), and thus, we can't convert platforms to the new API separately. There are only two platforms changed here, so it's not a big deal. Signed-off-by: Dmitry Osipenko <[email protected]>
Replace legacy pm_power_off with kernel_can_power_off() helper that is aware about chained power-off handlers. Signed-off-by: Dmitry Osipenko <[email protected]>
Switch to power-handler API that replaces legacy pm_power_off callbacks. Signed-off-by: Dmitry Osipenko <[email protected]>
Use devm_register_power_handler() that replaces global pm_power_off_prepare variable and allows to register multiple power-off handlers. Signed-off-by: Dmitry Osipenko <[email protected]>
All pm_power_off_prepare() users were converted to power-handler API. Remove the obsolete callback. Signed-off-by: Dmitry Osipenko <[email protected]>
Nexus 7 Android tablet can be turned off using a special bootloader command which is conveyed to bootloader by putting magic value into specific scratch register and then rebooting normally. This power-off method should be invoked if USB cable is connected. Bootloader then will display battery status and power off the device. This behaviour is borrowed from downstream kernel and matches user expectations, otherwise it looks like device got hung during power-off and it may wake up on USB disconnect. Switch PMC driver to power-handler API, which provides drivers with combined power-off+restart call chains functionality, replacing the restart-only call chain API. Signed-off-by: Dmitry Osipenko <[email protected]>
Use devm_register_power_handler() that replaces global pm_power_off variable and allows to register multiple power-off handlers. It also provides restart-handler support, i.e. all in one API. Signed-off-by: Dmitry Osipenko <[email protected]>
Use devm_register_power_handler() that replaces global pm_power_off variable and allows to register multiple power-off handlers. It also provides restart-handler support, i.e. all in one API. Signed-off-by: Dmitry Osipenko <[email protected]>
Use devm_register_power_handler() that replaces global pm_power_off variable and allows to register multiple power-off handlers. It also provides restart-handler support, i.e. all in one API. Signed-off-by: Dmitry Osipenko <[email protected]>
Enable options needed by Transformers, GalaxyTab, SGH-I927 and SurfaceRT devices. Signed-off-by: Dmitry Osipenko <[email protected]>
Supported devices: - acer-picasso; - microsoft surface-rt; - transformers; - pegatron chagall; - grouper / tilapia; - samsung-i927 glide; Link: grate-driver#69 (comment) Signed-off-by: Anton Bambura <[email protected]>
besides generic needed options: - built-in stuff needed for cryptsetup - anbox support (is broken on armv7, but we hope it will be fixed) - waydroid support - nftables - containers (docker, lxc) - zram Link: grate-driver#69 (comment) Signed-off-by: Anton Bambura <[email protected]>
NVIDIA Tegra30 thermal sensor driver has a hardware-controlled CPU cooling feature that halves CPU frequency once a specified trip point is breached. In order to account the hardware state transitions, which are reported by interrupt, the sensor driver needs to report the cooling state transition and this is done by thermal_cooling_device_stats_update(). The sensor driver could be compiled as a loadable driver module, but this API function isn't exported, hence export it. Signed-off-by: Dmitry Osipenko <[email protected]>
Expose Tegra30 thermal sensor as a cooling device and enable hardware-assisted DIV2 CPU frequency throttling. The DIV2 cooling is activated by hardware while the breach of hot temperature trip is detected by sensor. Signed-off-by: Dmitry Osipenko <[email protected]>
Tegra I2C device isn't guaranteed to be suspended after removal of the driver since driver uses pm_runtime_put() that is asynchronous and pm_runtime_disable() cancels pending power-change requests. This means that potentially refcount of the clocks may become unbalanced after removal of the driver. This a very minor problem which unlikely to happen in practice and won't cause any visible problems, nevertheless let's replace pm_runtime_disable() with pm_runtime_force_suspend() and use pm_runtime_put_sync() which disables RPM of the device and puts it into suspend before driver is removed. Signed-off-by: Dmitry Osipenko <[email protected]>
Not all OPP entries fit into a single word. In particular NVIDIA Tegra OPP tables use multi-word names. Allow OPP entry to have multi-worded name separated by hyphen. This silences DT checker warnings about wrong naming scheme. Reviewed-by: David Heidelberg <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]>
Fixed regulator can't change voltage and regulator_sync_voltage() returns -EINVAL in this case. Make regulator_sync_voltage() to succeed for regulators that are incapable to change voltage. On NVIDIA Tegra power management driver needs to sync voltage and we have one device (Trimslice) that uses fixed regulator which is getting synced. The syncing error isn't treated as fatal, but produces a noisy error message. This patch silences that error. Signed-off-by: Dmitry Osipenko <[email protected]>
The clock-frequency property was never used and is deprecated now. Remove it from Nexus 7 device-tree. Signed-off-by: David Heidelberg <[email protected]>
Older device-trees don't specify padctrl interrupt and xhci-tegra driver now fails to probe with -EINVAL using those device-trees. Check interrupt presence and disallow runtime PM suspension if it's missing to fix the trouble. Fixes: 971ee24 ("usb: xhci: tegra: Enable ELPG for runtime/system PM") Reported-by: Nicolas Chauvet <[email protected]> Tested-by: Nicolas Chauvet <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]>
The current default is to leave the VDE clock's parent at the default, which is clk_m. However, that is not a configuration that will allow the VDE to function. Reparent it to pll_p instead to make sure the hardware can actually decode video content. Signed-off-by: Dmitry Osipenko <[email protected]>
Tegra114 and Tegra124 support reference picture marking, which will cause BSEV to write picture marking data to SDRAM. Make sure there is a valid destination address for that data to avoid error messages from the memory controller. [[email protected]: added BO support and moved secure BO allocation to kernel] Tested-by: Anton Bambura <[email protected]> # T114 ASUS TF701T Signed-off-by: Thierry Reding <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]>
Entries in the reference picture list are marked as invalid by setting the frame ID to 0x3f. Signed-off-by: Thierry Reding <[email protected]> Signed-off-by: Dmitry Osipenko <[email protected]>
Register misc device in the end of driver's probing since device should become visible to userspace once driver is fully prepared. Do the opposite in case of driver removal. This is a minor improvement that doesn't solve any problem. Signed-off-by: Dmitry Osipenko <[email protected]>
LQ101R1SX03 is compatible with LQ101R1SX01, document it. Signed-off-by: Anton Bambura <[email protected]>
LQ101R1SX03 is compatible with LQ101R1SX01, add compatible to the driver. Signed-off-by: Anton Bambura <[email protected]>
Document Tegra114-based Asus Transformer Pad TF701T (asus-tf701t). Signed-off-by: Anton Bambura <[email protected]>
Add more labels in order to use label reference in device-specific dts files. Signed-off-by: Anton Bambura <[email protected]>
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Add device-tree for Tegra114-based Asus Transformer Pad TF701T (K00C) tablet. Signed-off-by: Anton Bambura <[email protected]>
Add Video Decoder Engine node to Tegra114 device-tree. Signed-off-by: Anton Bambura <[email protected]>
Signed-off-by: David Heidelberg <[email protected]>
Signed-off-by: David Heidelberg <[email protected]>
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…patch-fixes Cc: Davidlohr Bueso <[email protected]> WARNING: A patch subject line should describe the change not the tool that found it #2: Subject: kernel-sys-only-take-tasklist_lock-for-get-setpriorityprio_pgrp-checkpatch-fixes WARNING: Commit log lines starting with '#' are dropped by git as comments #5: #102: FILE: kernel/sys.c:321: WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) #13: mechanically convert to the typical style using --fix or --fix-inplace. total: 0 errors, 3 warnings, 8 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/kernel-sys-only-take-tasklist_lock-for-get-setpriorityprio_pgrp-checkpatch-fixes.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Davidlohr Bueso <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Oleg Nesterov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]>
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Task for Max:
Validate nvidia,tegra-audio-wm8994 node in
p4wifiandglide(it's used later in automatedmake dtbs_checkvalidation).This helps discover typos and mistakes when DTS are upstreamed + ensures support for this device won't get broken.
Install steps:
install dt-schema
install yamllint
look at
Documentation/devicetree/bindings/sound/nvidia,tegra-audio-*(preferably.yaml) also check them in https://github.com/okias/linux/tree/dt_bindings there is at least one I ported (but may need improvements)create
Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm8994.yamltest with
yamllintthere are no errorsadjust glide and p4wifi DTS as described in this pull-request to have additional
compatiblein 1st placetest with
make dt_bindings_check(check example inside YAML)You'll need crosscompilator for arm and settings something like
export ARCH=arm && export CROSS_COMPILE=arm-linux-gnueabihf-test with
make dtbs_check(check p4wifi and glide DTS)Sending to grate/upstream:
git commit --fixup COMMIT_HASH) for p4wifi and glide (as in this PR are changes done)