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2024-07-08Input: preallocate memory to hold event valuesDmitry Torokhov
Preallocate memory for holding event values (input_dev->vals) so that there is no need to check if it was allocated or not in the event processing code. The amount of memory will be adjusted after input device has been fully set up upon registering device with the input core. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-7-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: rearrange input_alloc_device() to prepare for preallocating of valsDmitry Torokhov
In preparation to have dev->vals memory pre-allocated rearrange code in input_alloc_device() so that it allows handling multiple points of failure. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-6-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: simplify event handling logicDmitry Torokhov
Streamline event handling code by providing batch implementations for filtering and event processing and using them in place of the main event handler, as needed, instead of having complex branching logic in the middle of the event processing code. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: make events() method return number of events processedDmitry Torokhov
In preparation to consolidating filtering and event processing in the input core change events() method to return number of events processed by it. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: make sure input handlers define only one processing methodDmitry Torokhov
Input core expects input handlers to be either filters, or regular handlers, but not both. Additionally, for regular handlers it does not make sense to define both single event method and batch method. Refuse registering handler if it defines more than one method. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: evdev - remove ->event() methodDmitry Torokhov
Input core favors ->events() (batch) method over ->event() method if the former is defined, so there is no point in defining evdev_event() as it is never called. Remove it. Reviewed-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Benjamin Tissoires <bentiss@kernel.org> Link: https://lore.kernel.org/r/20240703213756.3375978-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: imagis - add supports for Imagis IST3038Raymond Hackley
Imagis IST3038 is another variant of Imagis IST3038 IC, which has a different register interface from IST3038C (possibly firmware defined). Unlike IST3038C/IST3032C, IST3038 has different registers for commands, which means IST3038 doesn't use protocol B. Similar to IST3032C and maybe the other variants, IST3038 has touch keys support, which provides KEY_APPSELECT and KEY_BACK. Add support for IST3038 with touch keys. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240613025631.5425-4-raymondhackley@protonmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-08Input: imagis - clarify the usage of protocol_bRaymond Hackley
protocol_b is a property, which tells Imagis panel to use a different format for coordinates. IST30XXC series is known for using protocol B, while the other series aren't. Note this could be confusing, unlike the model name implies. Adjust the usage of protocol_b to avoid confusion. Signed-off-by: Raymond Hackley <raymondhackley@protonmail.com> Link: https://lore.kernel.org/r/20240613025631.5425-2-raymondhackley@protonmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-07-09i2c: rcar: bring hardware to known state when probingWolfram Sang
When probing, the hardware is not brought into a known state. This may be a problem when a hypervisor restarts Linux without resetting the hardware, leaving an old state running. Make sure the hardware gets initialized, especially interrupts should be cleared and disabled. Reported-by: Dirk Behme <dirk.behme@de.bosch.com> Reported-by: Geert Uytterhoeven <geert+renesas@glider.be> Closes: https://lore.kernel.org/r/20240702045535.2000393-1-dirk.behme@de.bosch.com Fixes: 6ccbe607132b ("i2c: add Renesas R-Car I2C driver") Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: mt7621: Add Airoha EN7581 i2c supportLorenzo Bianconi
Introduce i2c support to Airoha EN7581 SoC through the i2c-mt7621 driver. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Ray Liu <ray.liu@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: designware: Constify read-only struct regmap_configJavier Carrasco
`bt1_i2c_cfg` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: xiic: improve error message when transfer fails to startMarc Ferland
xiic_start_xfer can fail for different reasons: - EBUSY: bus is busy or i2c messages still in tx_msg or rx_msg - ETIMEDOUT: timed-out trying to clear the RX fifo - EINVAL: wrong clock settings Both EINVAL and ETIMEDOUT will currently print a specific error message followed by a generic one, for example: Failed to clear rx fifo Error xiic_start_xfer however EBUSY will simply output the generic message: Error xiic_start_xfer which is not really helpful. This commit adds a new error message when a busy condition is detected and also removes the generic message since it does not provide any relevant information to the user. Signed-off-by: Marc Ferland <marc.ferland@sonatest.com> Acked-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: omap: wakeup the controller during suspend() callbackThomas Richard
A device may need the controller up during suspend_noirq() or resume_noirq(). But if the controller is autosuspended, there is no way to wakeup it during suspend_noirq() or resume_noirq() because runtime pm is disabled at this time. The suspend() callback wakes up the controller, so it is available until its suspend_noirq() callback (pm_runtime_force_suspend()). During the resume, it's restored by resume_noirq() callback (pm_runtime_force_resume()). Then resume() callback enables autosuspend. So the controller is up during a little time slot in suspend and resume sequences even if it's not used. Reviewed-by: Andi Shyti <andi.shyti@kernel.org> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: omap: switch to NOIRQ_SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS()Thomas Richard
Replace SET_NOIRQ_SYSTEM_SLEEP_PM_OPS() and SET_RUNTIME_PM_OPS() by NOIRQ_SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS(). The usage of pm_ptr() and these more recent macros allows the compiler to see and drop the dead code. The unnecessary '__maybe_unused' annotations on PM functions can be removed. Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: add missing MODULE_DESCRIPTION() macrosJeff Johnson
make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-ccgx-ucsi.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-ali1563.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-pxa.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/i2c/busses/i2c-qup.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-09i2c: i801: Add support for Intel Arrow Lake-HJarkko Nikula
Add SMBus PCI ID on Intel Arrow Lake-H. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-07-08clk: en7523: fix rate divider for slic and spi clocksLorenzo Bianconi
Introduce div_offset field in en_clk_desc struct in order to fix rate divider estimation in en7523_get_div routine for slic and spi fixed rate clocks. Moreover, fix base_shift for crypto clock. Fixes: 1e6273179190 ("clk: en7523: Add clock driver for Airoha EN7523 SoC") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/c491bdea05d847f1f1294b94f14725d292eb95d0.1718615934.git.lorenzo@kernel.org Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08of/irq: Disable "interrupt-map" parsing for PASEMI NemoMarc Zyngier
Once again, we've broken PASEMI Nemo boards with its incomplete "interrupt-map" translations. Commit 935df1bd40d4 ("of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()") changed the behavior resulting in the existing work-around not taking effect. Rework the work-around to just skip parsing "interrupt-map" up front by using the of_irq_imap_abusers list. Fixes: 935df1bd40d4 ("of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()") Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/86ed8ba2sp.wl-maz@kernel.org Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-07-08drm/amdgpu: set CP_HQD_PQ_DOORBELL_CONTROL.DOORBELL_MODE to 1Zhigang Luo
to avoid reading wrong WPTR from doorbell in sriov vf, set CP_HQD_PQ_DOORBELL_CONTROL.DOORBELL_MODE to 1 to read WPTR from MQD. Signed-off-by: Zhigang Luo <Zhigang.Luo@amd.com> Acked-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add ras event state device attribute supportYang Wang
add amdgpu ras 'event_state' sysfs device attribute support Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amd/swsmu: enable more Pstates profile levels for SMU v14.0.0 and v14.0.1Li Ma
V1: This patch enables following UMD stable Pstates profile levels for power_dpm_force_performance_level interface. - profile_peak - profile_min_mclk - profile_min_sclk - profile_standard V2: Fix conflict with commit "drm/amd/pm: smu v14.0.4 reuse smu v14.0.0 dpmtable " V3: Add VCLK1 and DCLK1 support for SMU V14.0.1 And avoid to set VCLK1 and DCLK1 for SMU v14.0.0 Signed-off-by: Li Ma <li.ma@amd.com> Reviewed-by: Tim Huang <tim.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add ras POSION_CONSUMPTION event id supportYang Wang
add amdgpu ras POSION_CONSUMPTION event id support. Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdkfd: Use mode1 reset for GFX v9.4.4Stanley.Yang
GFX v9.4.4 uses mode1 reset to handle poison consumption. Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add ras POSION_CREATION event id supportYang Wang
add amdgpu ras POSION_CREATION event id support. Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: refine amdgpu ras event id core codeYang Wang
v1: - use unified event id to manage ras events - add a new function amdgpu_ras_query_error_status_with_event() to accept event type as parameter. v2: add a warn log to show the location of function failure when calling amdgpu_ras_mark_event(). (Tao Zhou) v3: change RAS_EVENT_TYPE_ISR to RAS_EVENT_TYPE_FATAL. v4: rename amdgpu_ras_get_recovery_event() to amdgpu_ras_get_fatal_error_event(). Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amd/display: Solve mst monitors blank out problem after resumeWayne Lin
[Why] In dm resume, we firstly restore dc state and do the mst resume for topology probing thereafter. If we change dpcd DP_MSTM_CTRL value after LT in mst reume, it will cause light up problem on the hub. [How] Revert commit 202dc359adda ("drm/amd/display: Defer handling mst up request in resume"). And adjust the reason to trigger dc_link_detect by DETECT_REASON_RESUMEFROMS3S4. Cc: stable@vger.kernel.org Fixes: 202dc359adda ("drm/amd/display: Defer handling mst up request in resume") Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Reviewed-by: Fangzhi Zuo <jerry.zuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: reject gang submit on reserved VMIDsChristian König
A gang submit won't work if the VMID is reserved and we can't flush out VM changes from multiple engines at the same time. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: enable dpg for vcn and jpeg on GC 11_5_2Saleemkhan Jamadar
DPG mode is enabled for vcn and jpeg on VCN v4_0_5 Signed-off-by: Saleemkhan Jamadar <saleemkhan.jamadar@amd.com> Reviewed-by: Tim Huang <tim.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: remove redundant semicolons in RAS_EVENT_LOGYang Wang
remove redundant semicolons in RAS_EVENT_LOG to avoid code format check warning. Fixes: b712d7c20133 ("drm/amdgpu: fix compiler 'side-effect' check issue for RAS_EVENT_LOG()") Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: restore dcc bo tilling configs while movingFrank Min
While moving buffer which has dcc tiling config, it is needed to restore its original dcc tiling. 1. extend copy flag to cover tiling bits 2. add logic to restore original dcc tiling config Signed-off-by: Frank Min <Frank.Min@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add gfx queue support for gfx12 ipdumpSunil Khatri
Add support of all the CP GFX queues for gfx12 ipdump to be used by devcoredump. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add cp queue registers for gfx12 ipdumpSunil Khatri
Add gfx12 support of CP queue registers for all queues to be used by devcoredump. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: enable redirection of irq's for IH v7.0Sunil Khatri
Enable redirection of irq for pagefaults for specific clients to avoid overflow without dropping interrupts. So here we redirect the interrupts to another IH ring i.e ring1 where only these interrupts are processed. Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm:amdgpu: enable IH ring1 for IH v7.0Sunil Khatri
We need IH ring1 for handling the pagefault interrupts which over flow in default ring for specific usecases. Enable ring1 allows software to redirect high interrupts to ring1 from default IH ring. Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: Set no_hw_access when VF request full GPU failsYifan Zha
[Why] If VF request full GPU access and the request failed, the VF driver can get stuck accessing registers for an extended period during the unload of KMS. [How] Set no_hw_access flag when VF request for full GPU access fails This prevents further hardware access attempts, avoiding the prolonged stuck state. Signed-off-by: Yifan Zha <Yifan.Zha@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add print support for gfx12 ipdumpSunil Khatri
Add support of gfx12 ipdump print so devcoredump could trigger it to dump the captured registers in devcoredump. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: add gfx12 register support in ipdumpSunil Khatri
Add general registers of gfx12 in ipdump for devcoredump support. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: update gfxhub client id for gfx12Frank Min
update gfxhub client id for gfx12 Signed-off-by: Frank Min <Frank.Min@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amd/pm: avoid to load smu firmware for APUsTim Huang
Certain call paths still load the SMU firmware for APUs, which needs to be skipped. Signed-off-by: Tim Huang <Tim.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08drm/amdgpu: sysfs node disable query error count during gpu resetYiPeng Chai
Sysfs node disable query error count during gpu reset. Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by: Stanley.Yang <Stanley.Yang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-08clk: lpc32xx: Constify struct regmap_configJavier Carrasco
`lpc32xx_scb_regmap_config` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240703-clk-const-regmap-v1-7-7d15a0671d6f@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08clk: xilinx: Constify struct regmap_configJavier Carrasco
`vcu_settings_regmap_config` is not modified and can be declared as const to move its data to a read-only section. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240703-clk-const-regmap-v1-10-7d15a0671d6f@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08ipmi: Drop explicit initialization of struct i2c_device_id::driver_data to 0Uwe Kleine-König
These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. While at it, also remove commas after the sentinel entries. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Message-Id: <20240708150914.18190-2-u.kleine-koenig@baylibre.com> Signed-off-by: Corey Minyard <corey@minyard.net>
2024-07-08Merge tag 'tegra-for-6.11-soc' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers soc/tegra: Changes for v6.11-rc1 This is a simple change that condenses two function calls into one in two places to save some boilerplate. * tag 'tegra-for-6.11-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: pmc: Simplify resource lookup Link: https://lore.kernel.org/r/20240628210818.3627404-1-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-07-08PCI/pwrctl: only call of_platform_populate() if CONFIG_OF is enabledBert Karwatzki
If of_platform_populate() is called when CONFIG_OF is not defined this leads to spurious error messages of the following type: pci 0000:00:01.1: failed to populate child OF nodes (-19) pci 0000:00:02.1: failed to populate child OF nodes (-19) Fixes: 8fb18619d910 ("PCI/pwrctl: Create platform devices for child OF nodes of the port node") Signed-off-by: Bert Karwatzki <spasswolf@web.de> Closes: https://lore.kernel.org/all/20240702173255.39932-1-superm1@kernel.org/ Reviewed-by: Lukas Wunner <lukas@wunner.de> Acked-by: Krzysztof Wilczyński <kw@linux.com> Reported-by: Praveenkumar Patil <PraveenKumar.Patil@amd.com> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20240707183829.41519-1-spasswolf@web.de Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-07-08clk: en7523: Remove PCIe reset open drain configuration for EN7581Lorenzo Bianconi
PCIe reset open drain configuration will be managed by pinctrl driver. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/43276af5f08a554b4ab2e52e8d437fff5c06a732.1719485847.git.lorenzo@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08clk: en7523: Remove pcie prepare/unpreare callbacks for EN7581 SoCLorenzo Bianconi
Get rid of prepare and unpreare callbacks for PCIe clock since they can be modeled as a reset line cosumed by the PCIe driver (pcie-mediatek-gen3) Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Zhengping Zhang <zhengping.zhang@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/16df149975514d3030499c48fc1c64f090093595.1719485847.git.lorenzo@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08clk: en7523: Add reset-controller support for EN7581 SoCLorenzo Bianconi
Introduce reset API support to EN7581 clock driver. Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Zhengping Zhang <zhengping.zhang@airoha.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/4f735d17e549ea53769bf5a3f50406debb879a44.1719485847.git.lorenzo@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08clk: mediatek: mt8173-infracfg: Handle unallocated infracfg when moduleAlper Nebi Yasak
The MT8173 infracfg clock driver does initialization in two steps, via a CLK_OF_DECLARE_DRIVER declaration. However its early init function doesn't get to run when it's built as a module, presumably since it's not loaded by the time it would have been called by of_clk_init(). This causes its second-step probe() to return -ENOMEM when trying to register clocks, as the necessary clock_data struct isn't initialized by the first step. MT2701 and MT6797 clock drivers also use this mechanism, but they try to allocate the necessary clock_data structure if missing in the second step. Mimic that for the MT8173 infracfg clock as well to make it work as a module. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> Link: https://lore.kernel.org/r/20240612201211.91683-1-alpernebiyasak@gmail.com Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-07-08clk: qcom: Park shared RCGs upon registrationStephen Boyd
There's two problems with shared RCGs. The first problem is that they incorrectly report the parent after commit 703db1f5da1e ("clk: qcom: rcg2: Cache CFG register updates for parked RCGs"). That's because the cached CFG register value needs to be populated when the clk is registered. clk_rcg2_shared_enable() writes the cached CFG register value 'parked_cfg'. This value is initially zero due to static initializers. If a driver calls clk_enable() before setting a rate or parent, it will set the parent to '0' which is (almost?) always XO, and may not reflect the parent at registration. In the worst case, this switches the RCG from sourcing a fast PLL to the slow crystal speed. The second problem is that the force enable bit isn't cleared. The force enable bit is only used during parking and unparking of shared RCGs. Otherwise it shouldn't be set because it keeps the RCG enabled even when all the branches on the output of the RCG are disabled (the hardware has a feedback mechanism so that any child branches keep the RCG enabled when the branch enable bit is set). This problem wastes power if the clk is unused, and is harmful in the case that the clk framework disables the parent of the force enabled RCG. In the latter case, the GDSC the shared RCG is associated with will get wedged if the RCG's source clk is disabled and the GDSC tries to enable the RCG to do "housekeeping" while powering on. Both of these problems combined with incorrect runtime PM usage in the display driver lead to a black screen on Qualcomm sc7180 Trogdor chromebooks. What happens is that the bootloader leaves the 'disp_cc_mdss_rot_clk' enabled and the 'disp_cc_mdss_rot_clk_src' force enabled and parented to 'disp_cc_pll0'. The mdss driver probes and runtime suspends, disabling the mdss_gdsc which uses the 'disp_cc_mdss_rot_clk_src' for "housekeeping". The 'disp_cc_mdss_rot_clk' is disabled during late init because the clk is unused, but the parent 'disp_cc_mdss_rot_clk_src' is still force enabled because the force enable bit was never cleared. Then 'disp_cc_pll0' is disabled because it is also unused. That's because the clk framework believes the parent of the RCG is XO when it isn't. A child device of the mdss device (e.g. DSI) runtime resumes mdss which powers on the mdss_gdsc. This wedges the GDSC because 'disp_cc_mdss_rot_clk_src' is parented to 'disp_cc_pll0' and that PLL is off. With the GDSC wedged, mdss_runtime_resume() tries to enable 'disp_cc_mdss_mdp_clk' but it can't because the GDSC has wedged all the clks associated with the GDSC causing clks to stay stuck off. This leads to the following warning seen at boot and a black screen because the display driver fails to probe. disp_cc_mdss_mdp_clk status stuck at 'off' WARNING: CPU: 1 PID: 81 at drivers/clk/qcom/clk-branch.c:87 clk_branch_toggle+0x114/0x168 Modules linked in: CPU: 1 PID: 81 Comm: kworker/u16:4 Not tainted 6.7.0-g0dd3ee311255 #1 f5757d475795053fd2ad52247a070cd50dd046f2 Hardware name: Google Lazor (rev1 - 2) with LTE (DT) Workqueue: events_unbound deferred_probe_work_func pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : clk_branch_toggle+0x114/0x168 lr : clk_branch_toggle+0x110/0x168 sp : ffffffc08084b670 pmr_save: 00000060 x29: ffffffc08084b680 x28: ffffff808006de00 x27: 0000000000000001 x26: ffffff8080dbd4f4 x25: 0000000000000000 x24: 0000000000000000 x23: 0000000000000000 x22: ffffffd838461198 x21: ffffffd838007997 x20: ffffffd837541d5c x19: 0000000000000001 x18: 0000000000000004 x17: 0000000000000000 x16: 0000000000000010 x15: ffffffd837070fac x14: 0000000000000003 x13: 0000000000000004 x12: 0000000000000001 x11: c0000000ffffdfff x10: ffffffd838347aa0 x9 : 08dadf92e516c000 x8 : 08dadf92e516c000 x7 : 0000000000000000 x6 : 0000000000000027 x5 : ffffffd8385a61f2 x4 : 0000000000000000 x3 : ffffffc08084b398 x2 : ffffffc08084b3a0 x1 : 00000000ffffdfff x0 : 00000000fffffff0 Call trace: clk_branch_toggle+0x114/0x168 clk_branch2_enable+0x24/0x30 clk_core_enable+0x5c/0x1c8 clk_enable+0x38/0x58 clk_bulk_enable+0x40/0xb0 mdss_runtime_resume+0x68/0x258 pm_generic_runtime_resume+0x30/0x44 __genpd_runtime_resume+0x30/0x80 genpd_runtime_resume+0x124/0x214 __rpm_callback+0x7c/0x15c rpm_callback+0x30/0x88 rpm_resume+0x390/0x4d8 rpm_resume+0x43c/0x4d8 __pm_runtime_resume+0x54/0x98 __device_attach+0xe0/0x170 device_initial_probe+0x1c/0x28 bus_probe_device+0x48/0xa4 device_add+0x52c/0x6fc mipi_dsi_device_register_full+0x104/0x1a8 devm_mipi_dsi_device_register_full+0x28/0x78 ti_sn_bridge_probe+0x1dc/0x2bc auxiliary_bus_probe+0x4c/0x94 really_probe+0xf8/0x270 __driver_probe_device+0xa8/0x130 driver_probe_device+0x44/0x104 __device_attach_driver+0xa4/0xcc bus_for_each_drv+0x94/0xe8 __device_attach+0xf8/0x170 device_initial_probe+0x1c/0x28 bus_probe_device+0x48/0xa4 deferred_probe_work_func+0x9c/0xd8 Fix these problems by parking shared RCGs at boot. This will properly initialize the parked_cfg struct member so that the parent is reported properly and ensure that the clk won't get stuck on or off because the RCG is parented to the safe source (XO). Fixes: 703db1f5da1e ("clk: qcom: rcg2: Cache CFG register updates for parked RCGs") Reported-by: Stephen Boyd <sboyd@kernel.org> Closes: https://lore.kernel.org/r/1290a5a0f7f584fcce722eeb2a1fd898.sboyd@kernel.org Closes: https://issuetracker.google.com/319956935 Reported-by: Laura Nao <laura.nao@collabora.com> Closes: https://lore.kernel.org/r/20231218091806.7155-1-laura.nao@collabora.com Cc: Bjorn Andersson <andersson@kernel.org> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Taniya Das <quic_tdas@quicinc.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20240502224703.103150-1-swboyd@chromium.org Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-16 07:20:04 +0000