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2022-02-24ARM: tegra: paz00: Add MMC aliasesDmitry Osipenko1-2/+4
Add MMC aliases to ensure that the /dev/mmcblk IDs won't change depending on the probe order of the MMC drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-02-24ARM: tegra: tf700t: Rename DSI nodeDmitry Osipenko1-1/+1
Rename DSI bridge node to match the requirement of the DSI DT schema. This silences DTB-check warning about the incorrect name. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-02-24ARM: tegra: transformer: Drop reg-shift for Tegra HS UARTSvyatoslav Ryhel3-0/+6
When the Tegra High-Speed UART is used instead of the regular UART, the reg-shift property is implied from the compatible string and should not be explicitly listed. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-02-24ARM: tegra: asus-tf101: Enable S/PDIF and HDMI audioDmitry Osipenko1-0/+8
Enable S/PDIF controller to enable HDMI audio support on ASUS TF101. Use nvidia,fixed-parent-rate property that prevents audio rate conflict between S/PDIF and I2S. Tested-by: Robert Eckelmann <longnoserob@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-02-24drm/i915: Make pre-skl sprite plane registers unlockedVille Syrjälä1-45/+0
Drop the locks around sprite plane register writes. The lock isn't needed since each plane's register are neatly contained on their own cachelines. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-6-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-24drm/i915: Make most pre-skl primary plane registers unlockedVille Syrjälä1-15/+9
Drop the locks around most primary plane register writes. The lock isn't needed since each plane's register are neatly contained on their own cachelines. The one exception we have to make is DSPADDR/DSPSURF which is (ab)used to also trigger FBC nukes on pre-snb (since the hardware doesn't seem to have any dedicated mechanism to trigger nukes). So we need to keep the lock around it to protect against the rmw performed by the fbc code. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-5-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-24drm/i915: Make cursor plane registers unlockedVille Syrjälä1-10/+10
Drop the locks around cursor plane register writes. The lock isn't needed since each plane's register are neatly contained on their own cachelines. The locking did have a secondary effect of disabling interrupts around the cursor registers writes though. If we drop that then we open outselves up for sceduling delays and whatnot while on the middle of the register writes. That increases the chance of not all the register writes land during the same frame. For normal atomic commits this is not a concern as the vblank evade mechanism anyway disables interrupts around the update, but the legacy cursor codepath does not. Technically we should do a vblank evade there as well, but so far no one has bothered to hook that up. So in the meantime let's put an explicit local irq disable/enable around the legacy cursor update to keep the race window minimal. v2: local_irq_{disable,enable}() for legacy cursor ioctl Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220211092604.393-1-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-24drm/i915: Make skl+ universal plane registers unlockedVille Syrjälä1-35/+0
Drop the locks around most universal plane register writes. The lock isn't needed since each plane's register are neatly contained on their own cachelines. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-3-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-24drm/i915: Optimize icl+ universal plane programmingVille Syrjälä1-40/+155
On icl+ all plane registers are armed by PLANE_SURF, so we can move almost everything over into the update_noarm() hook. The PLANE_CTL write has to stay in the icl_update_arm() hook though as it still exhibits the somewhat annoying self-arming behaviour when the plane transitioning from disabled to enabled. We could either do a full split for skl+ vs. icl+, or we could try some other kind of split where we'd eg. keep most things in the skl+ functions and call them from the icl+ functions. I think a full split is probably the cleaner approach since we've anyway accumulated quite a bit of icl+ specific things, so that is what I opted to do. Some i915_update_info stats for tgl: before: after: Updates: 5043 Updates: 5043 | | 1us | 1us | |** |*** 4us |****** 4us |******** |********** |*********** 16us |*********** 16us |********** |**** |* 66us | 66us | | | 262us | 262us | | | 1ms | 1ms | | | 4ms | 4ms | | | 17ms | 17ms | | | Min update: 3494ns Min update: 2983ns Max update: 49491ns Max update: 39986ns Average update: 18031ns Average update: 13423ns Overruns > 100us: 0 Overruns > 100us: 0 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-2-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-02-24pinctrl: baytrail: Add pinconf group + function for the pmu_clkHans de Goede1-0/+10
On the Lenovo Yoga Tablet 2 830 / 1050 / 1051 models the 32KHz PMU clk, which can be muxed externally to SUS pin 5 and/or 6 is used as a clock for the audio codec. On the 830 and 1050 models, with ship with Android as factory OS the pin-muxing for this is not setup by the BIOS. Add a pinconf group + function for the pmu_clk on SUS pin 5 and 6 to allow setting the pinmux up from within the x86-android-tablets platform code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223133153.730337-2-hdegoede@redhat.com
2022-02-24drm/i915/dg2: Tile 4 plane format supportStanislav Lisovskiy11-9/+38
Tile4 in bspec format is 4K tile organized into 64B subtiles with same basic shape as for legacy TileY which will be supported by Display13. v2: - Moved Tile4 associating struct for modifier/display to the beginning(Imre Deak) - Removed unneeded case I915_FORMAT_MOD_4_TILED modifier checks(Imre Deak) - Fixed I915_FORMAT_MOD_4_TILED to be 9 instead of 12 (Imre Deak) v3: - Rebased patch on top of new changes related to plane_caps. - Added static assert to check that PLANE_CTL_TILING_YF matches PLANE_CTL_TILING_4(Nanley Chery) - Fixed naming and layout description for Tile 4 in drm uapi header(Nanley Chery) v4: - Extracted drm_fourcc changes to separate patch(Nanley Chery) Reviewed-by: Imre Deak <imre.deak@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Juha-Pekka Heikkilä <juha-pekka.heikkila@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220118115544.15116-3-stanislav.lisovskiy@intel.com
2022-02-24random: only wake up writers after zap if threshold was passedJason A. Donenfeld1-1/+1
The only time that we need to wake up /dev/random writers on RNDCLEARPOOL/RNDZAPPOOL is when we're changing from a value that is greater than or equal to POOL_MIN_BITS to zero, because if we're changing from below POOL_MIN_BITS to zero, the writers are already unblocked. Cc: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-02-24random: round-robin registers as ulong, not u32Jason A. Donenfeld1-3/+3
When the interrupt handler does not have a valid cycle counter, it calls get_reg() to read a register from the irq stack, in round-robin. Currently it does this assuming that registers are 32-bit. This is _probably_ the case, and probably all platforms without cycle counters are in fact 32-bit platforms. But maybe not, and either way, it's not quite correct. This commit fixes that to deal with `unsigned long` rather than `u32`. Cc: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-02-24drm/i915: Introduce new Tile 4 formatStanislav Lisovskiy1-0/+11
This tiling layout uses 4KB tiles in a row-major layout. It has the same shape as Tile Y at two granularities: 4KB (128B x 32) and 64B (16B x 4). It only differs from Tile Y at the 256B granularity in between. At this granularity, Tile Y has a shape of 16B x 32 rows, but this tiling has a shape of 64B x 8 rows. Reviewed-by: Imre Deak <imre.deak@intel.com> Acked-by: Nanley Chery <nanley.g.chery@intel.com> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220118115544.15116-2-stanislav.lisovskiy@intel.com
2022-02-24btrfs: reduce extent threshold for autodefragQu Wenruo3-4/+17
There is a big gap between inode_should_defrag() and autodefrag extent size threshold. For inode_should_defrag() it has a flexible @small_write value. For compressed extent is 16K, and for non-compressed extent it's 64K. However for autodefrag extent size threshold, it's always fixed to the default value (256K). This means, the following write sequence will trigger autodefrag to defrag ranges which didn't trigger autodefrag: pwrite 0 8k sync pwrite 8k 128K sync The latter 128K write will also be considered as a defrag target (if other conditions are met). While only that 8K write is really triggering autodefrag. Such behavior can cause extra IO for autodefrag. Close the gap, by copying the @small_write value into inode_defrag, so that later autodefrag can use the same @small_write value which triggered autodefrag. With the existing transid value, this allows autodefrag really to scan the ranges which triggered autodefrag. Although this behavior change is mostly reducing the extent_thresh value for autodefrag, I believe in the future we should allow users to specify the autodefrag extent threshold through mount options, but that's an other problem to consider in the future. CC: stable@vger.kernel.org # 5.16+ Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2022-02-24sizes.h: Add SZ_1T macroChristophe Leroy2-1/+2
Today drivers/pci/controller/pci-xgene.c defines SZ_1T Move it into linux/sizes.h so that it can be re-used elsewhere. Link: https://lore.kernel.org/r/575cb7164cf124c75df7cb9242ea7374733942bf.1642752946.git.christophe.leroy@csgroup.eu Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Krzysztof Wilczyński <kw@linux.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Toan Le <toan@os.amperecomputing.com> Cc: linux-pci@vger.kernel.org
2022-02-24ARM: dts: add DT for lan966 SoC and 2-port board pcb8291Kavyasree Kotagiri3-0/+303
This patch adds basic DT for Microchip lan966x SoC and associated board pcb8291(2-port EVB). Adds peripherals required to allow booting: Interrupt Controller, Clock, Generic ARMv7 Timers, Synopsys Timer, Flexcoms, GPIOs. Also adds other peripherals like crypto(AES/SHA), DMA, Watchdog Timer, TRNG and MCAN0. Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com> Reviewed-by: Michael Walle <michael@walle.cc> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20220221080858.14233-1-kavyasree.kotagiri@microchip.com
2022-02-24phy: rockchip: add naneng combo phy for RK3568Yifeng Zhao3-0/+590
This patch implements a combo phy driver for Rockchip SoCs with NaNeng IP block. This phy can be used as pcie-phy, usb3-phy, sata-phy or sgmii-phy. Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> Link: https://lore.kernel.org/r/20220208091326.12495-4-yifeng.zhao@rock-chips.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-24dt-bindings: phy: rockchip: Add Naneng combo PHY bindingsYifeng Zhao1-0/+109
Add the compatible strings for the Naneng combo PHY found on rockchip SoC. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> Link: https://lore.kernel.org/r/20220208091326.12495-3-yifeng.zhao@rock-chips.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-24dt-bindings: soc: grf: add naneng combo phy register compatibleJohan Jonker1-0/+2
Add Naneng combo phy register compatible. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> Link: https://lore.kernel.org/r/20220208091326.12495-2-yifeng.zhao@rock-chips.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-02-24drm/repaper: Use format helper for xrgb8888 to monochrome conversionJavier Martinez Canillas1-23/+1
There is now a drm_fb_xrgb8888_to_mono_reversed() helper function to do format conversion from XRGB8888 to reversed monochrome. Use that helper and remove the open coded version in the repaper driver. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Tested-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220223193735.213185-1-javierm@redhat.com
2022-02-24pwm: rcar: Simplify multiplication/shift logicGeert Uytterhoeven1-1/+1
- Remove the superfluous cast; the multiplication will yield a 64-bit result due to the "100ULL" anyway, - "a * (1 << b)" == "a << b". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: renesas,tpu: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: tiehrpwm: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: tiecap: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: samsung: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: intel,keembay: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: brcm,bcm7038: Do not require pwm-cells twiceKrzysztof Kozlowski1-1/+0
pwm-cells property is already required by pwm.yaml schema. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: toshiba,visconti: Include generic PWM schemaKrzysztof Kozlowski1-1/+3
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: renesas,pwm: Include generic PWM schemaKrzysztof Kozlowski1-12/+14
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: sifive: Include generic PWM schemaKrzysztof Kozlowski1-1/+3
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: rockchip: Include generic PWM schemaKrzysztof Kozlowski1-30/+32
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: mxs: Include generic PWM schemaKrzysztof Kozlowski1-1/+3
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: iqs620a: Include generic PWM schemaKrzysztof Kozlowski1-1/+3
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Jeff LaBundy <jeff@labundy.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: intel,lgm: Include generic PWM schemaKrzysztof Kozlowski1-0/+3
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: imx: Include generic PWM schemaKrzysztof Kozlowski2-2/+6
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24dt-bindings: pwm: allwinner,sun4i-a10: Include generic PWM schemaKrzysztof Kozlowski1-21/+24
Include generic pwm.yaml schema, which enforces PWM node naming and brings pwm-cells requirement. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24arm64: Use the clearbhb instruction in mitigationsJames Morse10-0/+79
Future CPUs may implement a clearbhb instruction that is sufficient to mitigate SpectreBHB. CPUs that implement this instruction, but not CSV2.3 must be affected by Spectre-BHB. Add support to use this instruction as the BHB mitigation on CPUs that support it. The instruction is in the hint space, so it will be treated by a NOP as older CPUs. Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: James Morse <james.morse@arm.com>
2022-02-24Merge tag 'nvme-5.17-2022-02-24' of git://git.infradead.org/nvme into block-5.17Jens Axboe3-25/+58
Pull NVMe fixes from Christoph: "nvme fixes for Linux 5.17 - send H2CData PDUs based on MAXH2CDATA (Varun Prakash) - fix passthrough to namespaces with unsupported features (me)" * tag 'nvme-5.17-2022-02-24' of git://git.infradead.org/nvme: nvme-tcp: send H2CData PDUs based on MAXH2CDATA nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info nvme: don't return an error from nvme_configure_metadata
2022-02-24KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migratedJames Morse3-1/+34
KVM allows the guest to discover whether the ARCH_WORKAROUND SMCCC are implemented, and to preserve that state during migration through its firmware register interface. Add the necessary boiler plate for SMCCC_ARCH_WORKAROUND_3. Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: James Morse <james.morse@arm.com>
2022-02-24arm64: Mitigate spectre style branch history side channelsJames Morse12-2/+352
Speculation attacks against some high-performance processors can make use of branch history to influence future speculation. When taking an exception from user-space, a sequence of branches or a firmware call overwrites or invalidates the branch history. The sequence of branches is added to the vectors, and should appear before the first indirect branch. For systems using KPTI the sequence is added to the kpti trampoline where it has a free register as the exit from the trampoline is via a 'ret'. For systems not using KPTI, the same register tricks are used to free up a register in the vectors. For the firmware call, arch-workaround-3 clobbers 4 registers, so there is no choice but to save them to the EL1 stack. This only happens for entry from EL0, so if we take an exception due to the stack access, it will not become re-entrant. For KVM, the existing branch-predictor-hardening vectors are used. When a spectre version of these vectors is in use, the firmware call is sufficient to mitigate against Spectre-BHB. For the non-spectre versions, the sequence of branches is added to the indirect vector. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: James Morse <james.morse@arm.com>
2022-02-24pwm: pwm-mediatek: Beautify error messages textAngeloGioacchino Del Regno1-4/+4
As a cherry-on-top cleanup, make error messages clearer to read by changing instances of "clock: XXXX failed" to a more readable "Failed to get XXXX clock". Also add "of" to unsupported period error. This is purely a cosmetic change; no "real" functional changes. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24ASoC: tlv320adc3xxx: Fix buggy return valueRicard Wanderlof1-4/+8
snd_soc_component_update_bits returns 1 if the operation was successful and some bits were changed, so we cannot return this value directly as it can be interpreted as an error. Instead, do some minor mangling to avoid inadvertently returning an error. Signed-off-by: Ricard Wanderlof <ricardw@axis.com> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2202241021420.20760@lnxricardw1.se.axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24Merge tag 'usb-serial-5.17-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linusGreg Kroah-Hartman2-1/+12
Johan writes: USB-serial fixes for 5.17-rc6 Here's a revert of a commit which erroneously added a device id used for the EPP/MEM mode of ch341 devices. Included are also some new modem device ids. All have been in linux-next with no reported issues. * tag 'usb-serial-5.17-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: option: add Telit LE910R1 compositions USB: serial: option: add support for DW5829e Revert "USB: serial: ch341: add new Product ID for CH341A"
2022-02-24pwm: pwm-mediatek: Allocate clk_pwms with devm_kmalloc_arrayAngeloGioacchino Del Regno1-1/+1
Switch from devm_kcalloc to devm_kmalloc_array when allocating clk_pwms, as this structure is being filled right after allocating it, hence there is no need to zero it out beforehand. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24pwm: pwm-mediatek: Simplify error handling with dev_err_probe()AngeloGioacchino Del Regno1-19/+11
Use dev_err_probe() to simplify handling errors in pwm_mediatek_probe(). Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24Merge branch 'kvm-ppc-cap-210' into kvm-next-5.18Paolo Bonzini3-1/+17
2022-02-24pwm: brcmstb: Remove useless lockingUwe Kleine-König1-7/+0
The lock only protects against concurrent users of the PWM API. This is not expected to be necessary. And if there was such an issue, this is better handled in the PWM core instead as it affects all drivers in the same way. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24pwm: brcmstb: Implement .apply() callbackUwe Kleine-König1-21/+24
To eventually get rid of all legacy drivers convert this driver to the modern world implementing .apply(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2022-02-24spi: pxa2xx-pci: Balance reference count for PCI DMA deviceAndy Shevchenko1-1/+16
The pci_get_slot() increases its reference count, the caller must decrement the reference count by calling pci_dev_put(). Fixes: 743485ea3bee ("spi: pxa2xx-pci: Do a specific setup in a separate function") Fixes: 25014521603f ("spi: pxa2xx-pci: Enable DMA for Intel Merrifield") Reported-by: Wang Qing <wangqing@vivo.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223191637.31147-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>