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2021-01-05drm: rcar-du: Use DRM-managed allocation for VSP planesLaurent Pinchart
devm_kcalloc() is the wrong API to allocate planes, as the lifetime of the planes is tied to the DRM device, not the device to driver binding. drmm_kcalloc() isn't a good option either, as it would result in the planes being freed before being unregistered during the managed cleanup of the DRM objects. Use a plain kcalloc(), and cleanup the planes and free the memory in the existing rcar_du_vsp_cleanup() handler. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
2021-01-05drm: rcar-du: Drop unneeded encoder cleanup in error pathLaurent Pinchart
The encoder->name field can never be non-null in the error path, as that can only be possible after a successful call to drm_simple_encoder_init(). Drop the cleanup. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2021-01-05drm: rcar-du: Release vsp device reference in all error pathsLaurent Pinchart
Use drmm_add_action_or_reset() instead of drmm_add_action() to ensure the vsp device reference is released in case the function call fails. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2021-01-05drm: rcar-du: Fix crash when using LVDS1 clock for CRTCLaurent Pinchart
On D3 and E3 platforms, the LVDS encoder includes a PLL that can generate a clock for the corresponding CRTC, used even when the CRTC output to a non-LVDS port. This mechanism is supported by the driver, but the implementation is broken in dual-link LVDS mode. In that case, the LVDS1 drm_encoder is skipped, which causes a crash when trying to access its bridge later on. Fix this by storing bridge pointers internally instead of retrieving them from the encoder. The rcar_du_device encoders field isn't used anymore and can be dropped. Fixes: 8e8fddab0d0a ("drm: rcar-du: Skip LVDS1 output on Gen3 when using dual-link LVDS mode") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2021-01-05drm: Add default modes for connectors in unknown stateLaurent Pinchart
The DRM CRTC helpers add default modes to connectors in the connected state if no mode can be retrieved from the connector. This behaviour is useful for VGA or DVI outputs that have no connected DDC bus. However, in such cases, the status of the output usually can't be retrieved and is reported as connector_status_unknown. Extend the addition of default modes to connectors in an unknown state to support outputs that can retrieve neither the modes nor the connection status. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-05drm: rcar-du: Fix PM reference leak in rcar_cmm_enable()Qinglang Miao
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in a reference leak here. A new function pm_runtime_resume_and_get is introduced in [0] to keep usage counter balanced. So We fix the reference leak by replacing it with new funtion. [0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") Fixes: e08e934d6c28 ("drm: rcar-du: Add support for CMM") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2021-01-05drm/bridge: thc63lvd1024: Fix regulator_get_optional() misuseMark Brown
The thc63lvd1024 driver requests a supply using regulator_get_optional() but both the name of the supply and the usage pattern suggest that it is being used for the main power for the device and is not at all optional for the device for function, there is no handling at all for absent supplies. Such regulators should use the vanilla regulator_get() interface, it will ensure that even if a supply is not described in the system integration one will be provided in software. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2021-01-05dt-bindings: display: bridge: thc63lvd1024: Document dual-output modeLaurent Pinchart
The DT binding support both dual-input and dual-output mode, but only dual-input is documented. Document dual-output mode. Suggested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2021-01-04drm/imx: ipuv3-crtc: use drm managed resourcesPhilipp Zabel
Use use drmm_crtc_alloc_with_planes() to align crtc memory lifetime with the drm device. drm_crtc_cleanup() is called automatically before the memory is freed. Also use drmm_add_action_or_reset() to make sure IPU resources are released automatically. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: ipuv3-plane: use drm managed resourcesPhilipp Zabel
Use drmm_universal_plane_alloc() to align plane memory lifetime with the drm device. drm_plane_cleanup() is called automatically before the memory is freed. Also move the call to ipu_plane_get_resources() into ipu_plane_init() and use drm managed resources to put IPU resources automatically when required. Handle error return values of the plane property creation functions. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: parallel-display: use drm managed resourcesPhilipp Zabel
Use drmm_simple_encoder_alloc() to align encoder memory lifetime with the drm device. drm_encoder_cleanup() is called automatically before the memory is freed. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-tve: use drm managed resourcesPhilipp Zabel
Use drmm_simple_encoder_alloc() to align encoder memory lifetime with the drm device. drm_encoder_cleanup() is called automatically before the memory is freed. Also fold imx_tve_register() into imx_tve_bind(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-ldb: use drm managed resourcesPhilipp Zabel
Use drmm_simple_encoder_alloc() to align encoder memory lifetime with the drm device. drm_encoder_cleanup() is called automatically before the memory is freed. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: dw_hdmi-imx: use drm managed resourcesPhilipp Zabel
Use drmm_simple_encoder_alloc() to align encoder memory lifetime with the drm device. drm_encoder_cleanup() is called automatically. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: parallel-display: move initialization into probePhilipp Zabel
Parts of the initialization that do not require the drm device can be done once during probe instead of possibly multiple times during bind. The bind function only creates the encoder. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: parallel-display: use local bridge and connector variablesPhilipp Zabel
Use local variables for bridge and connector. This simplifies the following commits. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-tve: use devm_clk_registerPhilipp Zabel
Avoid leaking the clock provider when the driver is unbound. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-tve: move initialization into probePhilipp Zabel
Parts of the initialization that do not require the drm device can be done once during probe instead of possibly multiple times during bind. The bind function only creates the encoder. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-tve: use local encoder and connector variablesPhilipp Zabel
Introduce local variables for encoder and connector. This simplifies the following commits. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-ldb: move initialization into probePhilipp Zabel
Parts of the initialization that do not require the drm device can be done once during probe instead of possibly multiple times during bind. The bind function only creates the encoders. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: imx-ldb: use local connector variablePhilipp Zabel
Use a local variable for the connector. This simplifies the following commits. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/imx: dw_hdmi-imx: move initialization into probePhilipp Zabel
Parts of the initialization that do not require the drm device can be done once during probe instead of possibly multiple times during bind. The bind function only creates the encoder and attaches the bridge. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/crtc: add drmm_crtc_alloc_with_planes()Philipp Zabel
Add an alternative to drm_crtc_init_with_planes() that allocates and initializes a crtc and registers drm_crtc_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/plane: add drmm_universal_plane_alloc()Philipp Zabel
Add an alternative to drm_universal_plane_init() that allocates and initializes a plane and registers drm_plane_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/simple_kms_helper: add drmm_simple_encoder_alloc()Philipp Zabel
Add an alternative to drm_simple_encoder_init() that allocates and initializes a simple encoder and registers drm_encoder_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm: add drmm_encoder_alloc()Philipp Zabel
Add an alternative to drm_encoder_init() that allocates and initializes an encoder and registers drm_encoder_cleanup() with drmm_add_action_or_reset(). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04drm/encoder: make encoder control functions optionalPhilipp Zabel
Simple managed encoders do not require the .destroy callback, make the whole funcs structure optional. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2021-01-04gpu: drm: imx: convert comma to semicolonZheng Yongjun
Replace a comma between expression statements by a semicolon. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-01-04drm/imx: depend on COMMON_CLK to fix compile testsKrzysztof Kozlowski
The iMX DRM LVDS driver uses Common Clock Framework thus it cannot be built on platforms without it (e.g. compile test on MIPS with RALINK and SOC_RT305X): /usr/bin/mips-linux-gnu-ld: drivers/gpu/drm/imx/imx-ldb.o: in function `imx_ldb_encoder_disable': imx-ldb.c:(.text+0x400): undefined reference to `clk_set_parent' Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-01-04gpu/ipu-v3/ipu-di: Strip out 2 unused 'di_sync_config' entriesLee Jones
They're taking up too much space on the stack. Fixes the following W=1 kernel build warning(s): drivers/gpu/ipu-v3/ipu-di.c: In function ‘ipu_di_sync_config_noninterlaced’: drivers/gpu/ipu-v3/ipu-di.c:391:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=] Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-01-04drm: warn if cursor plane is set with legacy funcsSimon Ser
A driver must not set drm_crtc.cursor and any of the legacy funcs at the same time, otherwise it's not clear which one DRM core should use for legacy cursor updates. Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201222134002.161613-1-contact@emersion.fr
2021-01-03Linux 5.11-rc2v5.11-rc2Linus Torvalds
2021-01-02Merge tag 's390-5.11-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 cleanups from Vasily Gorbik: "Update defconfigs and sort config select list" * tag 's390-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/Kconfig: sort config S390 select list once again s390: update defconfigs
2021-01-02Merge tag 'pm-5.11-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix a crash in intel_pstate during resume from suspend-to-RAM that may occur after recent changes and two resource leaks in error paths in the operating performance points (OPP) framework, add a new C-states table to intel_idle and update the cpuidle MAINTAINERS entry to cover the governors too. Specifics: - Fix recently introduced crash in the intel_pstate driver that occurs if scale-invariance is disabled during resume from suspend-to-RAM due to inconsistent changes of APERF or MPERF MSR values made by the platform firmware (Rafael Wysocki). - Fix a memory leak and add a missing clk_put() in error paths in the OPP framework (Quanyang Wang, Viresh Kumar). - Add new C-states table for SnowRidge processors to the intel_idle driver (Artem Bityutskiy). - Update the MAINTAINERS entry for cpuidle to make it clear that the governors are covered by it too (Lukas Bulwahn)" * tag 'pm-5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: intel_idle: add SnowRidge C-state table cpufreq: intel_pstate: Fix fast-switch fallback path opp: Call the missing clk_put() on error opp: fix memory leak in _allocate_opp_table MAINTAINERS: include governors into CPU IDLE TIME MANAGEMENT FRAMEWORK
2021-01-02Merge branches 'pm-cpufreq' and 'pm-cpuidle'Rafael J. Wysocki
* pm-cpufreq: cpufreq: intel_pstate: Fix fast-switch fallback path * pm-cpuidle: intel_idle: add SnowRidge C-state table MAINTAINERS: include governors into CPU IDLE TIME MANAGEMENT FRAMEWORK
2021-01-01Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a load of driver fixes (12 ufs, 1 mpt3sas, 1 cxgbi). The big core two fixes are for power management ("block: Do not accept any requests while suspended" and "block: Fix a race in the runtime power management code") which finally sorts out the resume problems we've occasionally been having. To make the resume fix, there are seven necessary precursors which effectively renames REQ_PREEMPT to REQ_PM, so every "special" request in block is automatically a power management exempt one. All of the non-PM preempt cases are removed except for the one in the SCSI Parallel Interface (spi) domain validation which is a genuine case where we have to run requests at high priority to validate the bus so this becomes an autopm get/put protected request" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (22 commits) scsi: cxgb4i: Fix TLS dependency scsi: ufs: Un-inline ufshcd_vops_device_reset function scsi: ufs: Re-enable WriteBooster after device reset scsi: ufs-mediatek: Use correct path to fix compile error scsi: mpt3sas: Signedness bug in _base_get_diag_triggers() scsi: block: Do not accept any requests while suspended scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT scsi: core: Only process PM requests if rpm_status != RPM_ACTIVE scsi: scsi_transport_spi: Set RQF_PM for domain validation commands scsi: ide: Mark power management requests with RQF_PM instead of RQF_PREEMPT scsi: ide: Do not set the RQF_PREEMPT flag for sense requests scsi: block: Introduce BLK_MQ_REQ_PM scsi: block: Fix a race in the runtime power management code scsi: ufs-pci: Enable UFSHCD_CAP_RPM_AUTOSUSPEND for Intel controllers scsi: ufs-pci: Fix recovery from hibernate exit errors for Intel controllers scsi: ufs-pci: Ensure UFS device is in PowerDown mode for suspend-to-disk ->poweroff() scsi: ufs-pci: Fix restore from S4 for Intel controllers scsi: ufs-mediatek: Keep VCC always-on for specific devices scsi: ufs: Allow regulators being always-on scsi: ufs: Clear UAC for RPMB after ufshcd resets ...
2021-01-01Merge tag 'block-5.11-2021-01-01' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "Two minor block fixes from this last week that should go into 5.11: - Add missing NOWAIT debugfs definition (Andres) - Fix kerneldoc warning introduced this merge window (Randy)" * tag 'block-5.11-2021-01-01' of git://git.kernel.dk/linux-block: block: add debugfs stanza for QUEUE_FLAG_NOWAIT fs: block_dev.c: fix kernel-doc warnings from struct block_device changes
2021-01-01Merge tag 'io_uring-5.11-2021-01-01' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring fixes from Jens Axboe: "A few fixes that should go into 5.11, all marked for stable as well: - Fix issue around identity COW'ing and users that share a ring across processes - Fix a hang associated with unregistering fixed files (Pavel) - Move the 'process is exiting' cancelation a bit earlier, so task_works aren't affected by it (Pavel)" * tag 'io_uring-5.11-2021-01-01' of git://git.kernel.dk/linux-block: kernel/io_uring: cancel io_uring before task works io_uring: fix io_sqe_files_unregister() hangs io_uring: add a helper for setting a ref node io_uring: don't assume mm is constant across submits
2021-01-01depmod: handle the case of /sbin/depmod without /sbin in PATHLinus Torvalds
Commit 436e980e2ed5 ("kbuild: don't hardcode depmod path") stopped hard-coding the path of depmod, but in the process caused trouble for distributions that had that /sbin location, but didn't have it in the PATH (generally because /sbin is limited to the super-user path). Work around it for now by just adding /sbin to the end of PATH in the depmod.sh script. Reported-and-tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-30kernel/io_uring: cancel io_uring before task worksPavel Begunkov
For cancelling io_uring requests it needs either to be able to run currently enqueued task_works or having it shut down by that moment. Otherwise io_uring_cancel_files() may be waiting for requests that won't ever complete. Go with the first way and do cancellations before setting PF_EXITING and so before putting the task_work infrastructure into a transition state where task_work_run() would better not be called. Cc: stable@vger.kernel.org # 5.5+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-12-30io_uring: fix io_sqe_files_unregister() hangsPavel Begunkov
io_sqe_files_unregister() uninterruptibly waits for enqueued ref nodes, however requests keeping them may never complete, e.g. because of some userspace dependency. Make sure it's interruptible otherwise it would hang forever. Cc: stable@vger.kernel.org # 5.6+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-12-30io_uring: add a helper for setting a ref nodePavel Begunkov
Setting a new reference node to a file data is not trivial, don't repeat it, add and use a helper. Cc: stable@vger.kernel.org # 5.6+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-12-30drm/i915/dp: Track pm_qos per connectorChris Wilson
Since multiple connectors may run intel_dp_aux_xfer conncurrently, a single global pm_qos does not suffice. (One connector may disable the dma-latency boost prematurely while the second is still depending on it.) Instead of a single global pm_qos, track the pm_qos request for each intel_dp. v2: Move the pm_qos setup/teardown to intel_dp_aux_init/fini Fixes: 9ee32fea5fe8 ("drm/i915: irq-drive the dp aux communication") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201230202309.23982-1-chris@chris-wilson.co.uk
2020-12-30Merge tag 'ceph-for-5.11-rc2' of git://github.com/ceph/ceph-clientLinus Torvalds
Pull ceph fixes from Ilya Dryomov: "A fix for an edge case in MClientRequest encoding and a couple of trivial fixups for the new msgr2 support" * tag 'ceph-for-5.11-rc2' of git://github.com/ceph/ceph-client: libceph: add __maybe_unused to DEFINE_MSGR2_FEATURE libceph: align session_key and con_secret to 16 bytes libceph: fix auth_signature buffer allocation in secure mode ceph: reencode gid_list when reconnecting
2020-12-30intel_idle: add SnowRidge C-state tableArtem Bityutskiy
Add C-state table for the SnowRidge SoC which is found on Intel Jacobsville platforms. The following has been changed. 1. C1E latency changed from 10us to 15us. It was measured using the open source "wult" tool (the "nic" method, 15us is the 99.99th percentile). 2. C1E power break even changed from 20us to 25us, which may result in less C1E residency in some workloads. 3. C6 latency changed from 50us to 130us. Measured the same way as C1E. The C6 C-state is supported only by some SnowRidge revisions, so add a C-state table commentary about this. On SnowRidge, C6 support is enumerated via the usual mechanism: "mwait" leaf of the "cpuid" instruction. The 'intel_idle' driver does check this leaf, so even though C6 is present in the table, the driver will only use it if the CPU does support it. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-12-30cpufreq: intel_pstate: Fix fast-switch fallback pathRafael J. Wysocki
When sugov_update_single_perf() falls back to the "frequency" path due to the missing scale-invariance, it will call cpufreq_driver_fast_switch() via sugov_fast_switch() and the driver's ->fast_switch() callback will be invoked, so it must not be NULL. However, after commit a365ab6b9dfb ("cpufreq: intel_pstate: Implement the ->adjust_perf() callback") intel_pstate sets ->fast_switch() to NULL when it is going to use intel_cpufreq_adjust_perf(), which is a mistake, because on x86 the scale-invariance may be turned off dynamically, so modify it to retain the original ->adjust_perf() callback pointer. Fixes: a365ab6b9dfb ("cpufreq: intel_pstate: Implement the ->adjust_perf() callback") Reported-by: Kenneth R. Crudup <kenny@panix.com> Tested-by: Kenneth R. Crudup <kenny@panix.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-12-30Merge branch 'opp/linux-next' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull operating performance points (OPP) framework fixes for 5.11-rc2 from Viresh Kumar: "This contains two patches to fix freeing of resources in error paths." * 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: opp: Call the missing clk_put() on error opp: fix memory leak in _allocate_opp_table
2020-12-30s390/Kconfig: sort config S390 select list once againHeiko Carstens
...and add comments at the top and bottom. Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-12-30s390: update defconfigsHeiko Carstens
Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-12-30drm/panel: s6e63m0: Support max-brightnessLinus Walleij
The "max-brightness" is a standard backlight property that we need to support for the Samsung GT-I8190 Golden because the display will go black if we crank up the brightness too high. As the platform needs this ability to give picture this is a regression fix along with the addition of the property to the GT-I8190 device tree. Cc: Stephan Gerhold <stephan@gerhold.net> Fixes: 9c3f0a0dd6a1 ("drm/panel: s6e63m0: Implement 28 backlight levels") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201214222210.238081-1-linus.walleij@linaro.org