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2025-10-27firmware: imx: scu: Use devm_mutex_initPeng Fan
In normal case, there is no need to invoke mutex_destroy in error path, but it is useful when CONFIG_DEBUG_MUTEXES, so use devm_mutex_init(). Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu: Suppress bind attrsPeng Fan
The SCU driver is critical for system working properly, it should never be removed and binded again. So suppress the bind attrs Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu: Update error codePeng Fan
IMX_SC_ERR_NOTFOUND should map with -ENOENT, not -EEXIST. -ENODEV makes more sense for IMX_SC_ERR_NOPOWER, and -ECOMM makes more sense for IMX_SC_ERR_IPC. Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu-irq: Remove unused export of ↵Peng Fan
imx_scu_enable_general_irq_channel Since its introduction, this symbol has not been used by any loadable modules. It remains only referenced within imx-scu.c, which is always built together with imx-scu-irq.c As such, exporting imx_scu_enable_general_irq_channel is unnecessary, so remove the export. Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu-irq: Set mu_resource_id before get handlePeng Fan
mu_resource_id is referenced in imx_scu_irq_get_status() and imx_scu_irq_group_enable() which could be used by other modules, so need to set correct value before using imx_sc_irq_ipc_handle in SCU API call. Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu-irq: Init workqueue before request mbox channelPeng Fan
With mailbox channel requested, there is possibility that interrupts may come in, so need to make sure the workqueue is initialized before the queue is scheduled by mailbox rx callback. Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu-irq: Free mailbox client on failure at ↵Peng Fan
imx_scu_enable_general_irq_channel() The IRQ mailbox is an optional channel and does not need to be kept until driver removal when an error occurs. Free the allocated memory in the error path. Add 'goto free_cl' when mbox_request_channel_byname() fails, to keep free at one place. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-27firmware: imx: scu-irq: fix OF node leak inPeng Fan
imx_scu_enable_general_irq_channel() calls of_parse_phandle_with_args(), but does not release the OF node reference. Add a of_node_put() call to release the reference. Fixes: 851826c7566e ("firmware: imx: enable imx scu general irq function") Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-04-14firmware: imx: Add i.MX95 SCMI CPU driverPeng Fan
The i.MX95 System manager exports SCMI CPU protocol for linux to manage cpu cores. The driver is to use the cpu Protocol interface to start, stop a cpu cores (eg, M7). Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Message-Id: <20250408-imx-lmm-cpu-v4-6-4c5f4a456e49@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2025-04-14firmware: imx: Add i.MX95 SCMI LMM driverPeng Fan
The i.MX95 System manager exports SCMI LMM protocol for linux to manage Logical Machines. The driver is to use the LMM Protocol interface to boot, shutdown a LM. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Message-Id: <20250408-imx-lmm-cpu-v4-5-4c5f4a456e49@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2025-03-06Merge tag 'imx-fixes-6.14' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 6.14: - A tqma8mpql board fix from Alexander Stein to correct vqmmc-supply for usdhc3 - A change from Joe Hattori to fix OF node leak in imx-scu driver probe - A soc-imx8m driver fix from Peng Fan unregister cpufreq and soc device in cleanup path - A couple of changes from Stefan Eichenberger to fix iMX6 Apalis poweroff and iMX8M verdin-dahlia sound-card descriptions * tag 'imx-fixes-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: freescale: imx8mm-verdin-dahlia: add Microphone Jack to sound card arm64: dts: freescale: imx8mp-verdin-dahlia: add Microphone Jack to sound card soc: imx8m: Unregister cpufreq and soc dev in cleanup path ARM: dts: imx6qdl-apalis: Fix poweroff on Apalis iMX6 arm64: dts: freescale: tqma8mpql: Fix vqmmc-supply firmware: imx-scu: fix OF node leak in .probe() Link: https://lore.kernel.org/r/Z8A+rihFV4K3l8QR@dragon Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-02-18firmware: imx-scu: fix OF node leak in .probe()Joe Hattori
imx_scu_probe() calls of_parse_phandle_with_args(), but does not release the OF node reference obtained by it. Add a of_node_put() call after done with the node. Fixes: f25a066d1a07 ("firmware: imx-scu: Support one TX and one RX") Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-02-14firmware: imx: IMX_SCMI_MISC_DRV should depend on ARCH_MXCGeert Uytterhoeven
The i.MX System Controller Management Interface firmware is only present on Freescale i.MX SoCs. Hence add a dependency on ARCH_MXC, to prevent asking the user about this driver when configuring a kernel without Freescale i.MX platform support. Fixes: 514b2262ade48a05 ("firmware: arm_scmi: Fix i.MX build dependency") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-12-03firmware: arm_scmi: Fix i.MX build dependencyArnd Bergmann
The newly added SCMI vendor driver references functions in the protocol driver but needs a Kconfig dependency to ensure it can link, essentially the Kconfig dependency needs to be reversed to match the link time dependency: | arm-linux-gnueabi-ld: sound/soc/fsl/fsl_mqs.o: in function `fsl_mqs_sm_write': | fsl_mqs.c:(.text+0x1aa): undefined reference to `scmi_imx_misc_ctrl_set' | arm-linux-gnueabi-ld: sound/soc/fsl/fsl_mqs.o: in function `fsl_mqs_sm_read': | fsl_mqs.c:(.text+0x1ee): undefined reference to `scmi_imx_misc_ctrl_get' This however only works after changing the dependency in the SND_SOC_FSL_MQS driver as well, which uses 'select IMX_SCMI_MISC_DRV' to turn on a driver it depends on. This is generally a bad idea, so the best solution is to change that into a dependency. To allow the ASoC driver to keep building with the SCMI support, this needs to be an optional dependency that enforces the link-time dependency if IMX_SCMI_MISC_DRV is a loadable module but not depend on it if that is disabled. Fixes: 61c9f03e22fc ("firmware: arm_scmi: Add initial support for i.MX MISC protocol") Fixes: 101c9023594a ("ASoC: fsl_mqs: Support accessing registers by scmi interface") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com> Message-Id: <20241115230555.2435004-1-arnd@kernel.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2024-11-12firmware: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/firmware to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/36974feb6035201d53384557259ec72fe311053b.1731397962.git.u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-28firmware: imx: Add i.MX95 MISC driverPeng Fan
The i.MX95 System manager exports SCMI MISC protocol for linux to do various settings, such as set board gpio expander as wakeup source. The driver is to add the support. Reviewed-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Message-Id: <20240823-imx95-bbm-misc-v2-v8-5-e600ed9e9271@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2024-01-04firmware: imx-dsp: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/f4cc1ffe30b837d5eab96f2924f51999dfa9f671.1703693980.git.u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-01Merge tag 'pmdomain-v6.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm Pull pmdomain updates from Ulf Hansson: - Move Kconfig files into the pmdomain subsystem - Drop use of genpd's redundant ->opp_to_performance_state() callback - amlogic: - Add support for the T7 power-domains controller - Fix mask for the second NNA mem power-domain - bcm: Fixup ASB register read and comparison for bcm2835-power - imx: Fix device link problem for consumers of the pgc power-domain - mediatek: Add support for the MT8365 power domains - qcom: - Add support for the rpmhpds for SC8380XP power-domains - Add support for the rpmhpds for SM8650 power-domains - Add support for the rpmhpd clocks for SM7150 - Add support for the rpmpds for MSM8917 (families) power-domains - starfive: Add support for the JH7110 AON PMU * tag 'pmdomain-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (56 commits) pmdomain: amlogic: Fix mask for the second NNA mem PD domain pmdomain: qcom: rpmhpd: Add SC8380XP power domains pmdomain: qcom: rpmhpd: Add SM8650 RPMh Power Domains dt-bindings: power: rpmpd: Add SC8380XP support dt-bindings: power: qcom,rpmhpd: Add GMXC PD index dt-bindings: power: qcom,rpmpd: document the SM8650 RPMh Power Domains pmdomain: imx: Make imx pgc power domain also set the fwnode pmdomain: qcom: rpmpd: Add QM215 power domains pmdomain: qcom: rpmpd: Add MSM8917 power domains dt-bindings: power: rpmpd: Add MSM8917, MSM8937 and QM215 pmdomain: bcm: bcm2835-power: check if the ASB register is equal to enable pmdomain: qcom: rpmhpd: Drop the ->opp_to_performance_state() callback pmdomain: qcom: rpmpd: Drop the ->opp_to_performance_state() callback pmdomain: qcom: cpr: Drop the ->opp_to_performance_state() callback pmdomain: Use device_get_match_data() pmdomain: ti: add missing of_node_put pmdomain: mediatek: Add support for MT8365 pmdomain: mediatek: Add support for MTK_SCPD_STRICT_BUS_PROTECTION cap pmdomain: mediatek: Add support for WAY_EN operations pmdomain: mediatek: Unify configuration for infracfg and smi ...
2023-10-10firmware/imx-dsp: Fix use_after_free in imx_dsp_setup_channels()Hao Ge
dsp_chan->name and chan_name points to same block of memory, because dev_err still needs to be used it,so we need free it's memory after use to avoid use_after_free. Fixes: e527adfb9b7d ("firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()") Signed-off-by: Hao Ge <gehao@kylinos.cn> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-10-04pmdomain: imx: Move Kconfig options to the pmdomain subsystemUlf Hansson
The Kconfig options belongs closer to the corresponding implementations, hence let's move them from the soc- and firmware subsystem to the pmdomain subsystem. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: Peng Fan <peng.fan@nxp.com> Cc: <kernel@pengutronix.de> Cc: <linux-imx@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-09-19firmware: imx-dsp: Fix an error handling path in imx_dsp_setup_channels()Christophe JAILLET
If mbox_request_channel_byname() fails, the memory allocated a few lines above still need to be freed before going to the error handling path. Fixes: 046326989a18 ("firmware: imx: Save channel name for further use") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-30Merge tag 'soc-arm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds
Pull ARM SoC cleanups from Arnd Bergmann: "These are all minor cleanups for platform specific code in arch/arm/ and some of the associated drivers. The majority of these are work done by Rob Herring to improve the way devicetreee header files are handled" * tag 'soc-arm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (49 commits) ARM: davinci: Drop unused includes ARM: s5pv210: Explicitly include correct DT includes ARM: dove: Drop unused includes ARM: mvebu: Explicitly include correct DT includes Documentation/process: maintainer-soc: document dtbs_check requirement for Samsung MAINTAINER: samsung: document dtbs_check requirement for Samsung Documentation/process: maintainer-soc: add clean platforms profile MAINTAINERS: soc: reference maintainer profile ARM: nspire: Remove unused header file mmio.h ARM: nspire: Use syscon-reboot to handle restart soc: fsl: Explicitly include correct DT includes soc: xilinx: Explicitly include correct DT includes soc: sunxi: Explicitly include correct DT includes soc: rockchip: Explicitly include correct DT includes soc: mediatek: Explicitly include correct DT includes soc: aspeed: Explicitly include correct DT includes firmware: Explicitly include correct DT includes bus: Explicitly include correct DT includes ARM: spear: Explicitly include correct DT includes ARM: mvebu: Explicitly include correct DT includes ...
2023-08-30Merge tag 'soc-drivers-6.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC driver updates from Arnd Bergmann: "The main change this time was the introduction of the drivers/genpd subsystem that gets split out from drivers/soc to keep common functionality together. The SCMI driver subsystem gets an update to version 3.2 of the specification. There are also updates to memory, reset and other firmware drivers. On the soc driver side, the updates are mostly cleanups across a number of Arm platforms. On driver for loongarch adds power management for DT based systems, another driver is for HiSilicon's Arm server chips with their HCCS system health interface. The remaining updates for the most part add support for additional hardware in existing drivers or contain minor cleanups. Most of these are for the Qualcomm Snapdragon platform" * tag 'soc-drivers-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (136 commits) bus: fsl-mc: Use common ranges functions soc: kunpeng_hccs: fix some sparse warnings about incorrect type soc: loongson2_pm: add power management support soc: dt-bindings: add loongson-2 pm soc: rockchip: grf: Fix SDMMC not working on RK3588 with bus-width > 1 genpd: rockchip: Add PD_VO entry for rv1126 bus: ti-sysc: Fix cast to enum warning soc: kunpeng_hccs: add MAILBOX dependency MAINTAINERS: remove OXNAS entry dt-bindings: interrupt-controller: arm,versatile-fpga-irq: mark oxnas compatible as deprecated irqchip: irq-versatile-fpga: remove obsolete oxnas compatible soc: qcom: aoss: Tidy up qmp_send() callers soc: qcom: aoss: Format string in qmp_send() soc: qcom: aoss: Move length requirements from caller soc: kunpeng_hccs: fix size_t format string soc: ti: k3-socinfo.c: Add JTAG ID for AM62PX dt-bindings: firmware: qcom: scm: Updating VMID list firmware: imx: scu-irq: support identifying SCU wakeup source from sysfs firmware: imx: scu-irq: enlarge the IMX_SC_IRQ_NUM_GROUP firmware: imx: scu-irq: add imx_scu_irq_get_status ...
2023-08-17genpd: imx: relocate scu-pd under genpdPeng Fan
Move scu-pd driver under genpd directory where the driver should be. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-08-12firmware: Explicitly include correct DT includesRob Herring
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Link: https://lore.kernel.org/r/20230803-dt-header-cleanups-for-soc-v2-17-d8de2cc88bff@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-11firmware: imx: scu-irq: support identifying SCU wakeup source from sysfsRanjani Vaidyanathan
Record SCU wakeup interrupt in /sys/power/pm_wakeup_irq The user can further identify the exact wakeup source by using the following interface: cat /sys/firmware/scu_wakeup_source/wakeup_src The above will print the wake groups and the irqs that could have contributed to waking up the kernel. For example if ON/OFF button was the wakeup source: cat /sys/firmware/scu_wakeup_source/wakeup_src Wakeup source group = 3, irq = 0x1 The user can refer to the SCFW API documentation to identify all the wake groups and irqs. Signed-off-by: Ranjani Vaidyanathan <ranjani.vaidyanathan@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu-irq: enlarge the IMX_SC_IRQ_NUM_GROUPPeng Fan
Per SCFW update, update the IMX_SC_IRQ_NUM_GROUP to 9. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu-irq: add imx_scu_irq_get_statusPeng Fan
Extract the scu irq get status code from imx_scu_irq_work_handler and make into a new function imx_scu_irq_get_status which could be used by others, such as SECO. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu-irq: fix RCU complaint after M4 partition resetRobin Gong
Use blocking_notifier_chain instead of atomic_notifier_chain, otherwise there will be RCU complaint, because unregister/register_virtio_device() will issue mbox message. mbox_send_message() is blocking again after received M4 partition reset. Actually, no need atomic notifier for scu irq notification since this notifier is called in worker instead of interrupt handler. [ 389.706645] i2c-rpmsg virtio0.rpmsg-i2c-channel.-1.2: i2c rpmsg driver is removed [ 389.767362] Wait for remote ready timeout, use first_notify. [ 389.774084] ------------[ cut here ]------------ [ 389.778729] WARNING: CPU: 0 PID: 397 at kernel/rcu/tree_plugin.h:293 rcu_note_context_switch+0x34/0x338 [ 389.788131] Modules linked in: [ 389.791195] CPU: 0 PID: 397 Comm: kworker/0:13 Not tainted 5.4.0-rc5-02977-g08f78722f07b #26 [ 389.799633] Hardware name: Freescale i.MX8DXL MEK (DT) [ 389.805481] Workqueue: events imx_scu_irq_work_handler Signed-off-by: Robin Gong <yibin.gong@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu: use soc name for soc_idPeng Fan
Same as soc-imx8m and soc-imx driver, use soc name for soc_id which is user friendly. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu: increase RPC timeoutDong Aisheng
When system loading is high, we can meet some command timeout issue occasionally, so increase the timeout to a safe value. Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-08-11firmware: imx: scu: change init level to subsys_initcall_syncDong Aisheng
Change firmware init level to subsys_initcall_sync to ensure it's probed before most devices to avoid unnecessary defer probe. Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-03-06firmware: imx: scu-pd: add missed lvds lpi2c and pwm power domainsClark Wang
LVDS' lpi2c and pwm power domains definitions are missed. Add them here. Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2023-03-06firmware: imx: scu: use dev_err_probeAlexander Stein
This simplifies the code and silences -517 error messages. Also the reason is listed in /sys/kernel/debug/devices_deferred. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-10-24firmware: imx: scu-pd: add missed USB_1_PHY pdFrank Li
USB_1_PHY is not defined in pd driver on 8DXL. Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-02-20firmware: imx: scu-pd: imx8q: add vpu mu resourcesMing Qian
the vpu core depends on the mu resources. if they're missed, the vpu can't work. Signed-off-by: Ming Qian <ming.qian@nxp.com> Signed-off-by: Shijie Qin <shijie.qin@nxp.com> Signed-off-by: Zhou Peng <eagle.zhou@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-02-12firmware: imx: add get resource owner apiPeng Fan
Add resource owner management API, this API could be used to check whether M4 is under control of Linux. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29firmware: imx: scu-pd: add missed ADC1 pdFrank Li
ADC1 is not defined in pd driver on 8QM. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29firmware: imx: scu-pd: Update comments for single global power domainUlf Hansson
Since the introduction of the PM domain support for the scu-pd, the genpd framework has been continuously improved. More preciously, using a single global power domain can quite easily be deployed for imx platforms. To avoid confusions, let's therefore make an update to the comments about the missing pieces. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-15firmware: imx: scu-pd: do not power off console domainDong Aisheng
Do not power off console domain in runtime pm. Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-01-18firmware: imx: select SOC_BUS to fix firmware buildRandy Dunlap
Fix build error in firmware/imx/ selecting SOC_BUS. riscv32-linux-ld: drivers/firmware/imx/imx-scu-soc.o: in function `.L9': imx-scu-soc.c:(.text+0x1b0): undefined reference to `soc_device_register' Fixes: edbee095fafb ("firmware: imx: add SCU firmware driver support") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Atish Patra <atish.patra@wdc.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Anson Huang <Anson.Huang@nxp.com> Cc: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30firmware: imx: scu-pd: Add some power domains support for i.MX8qxp MIPI1 ↵Liu Ying
subsystem This patch adds the main power domain, pwm0 power domain and i2c0/1 power domains support for i.MX8qxp MIPI1 subsystem. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30firmware: imx: scu-pd: Add main power domain support for i.MX8qxp LVDS1 ↵Liu Ying
subsystem This patch adds the main power domain support for i.MX8qxp LVDS1 subsystem. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-30firmware: imx: scu-pd: Add video0/1 power domains support for i.MX8qxp DC0 ↵Liu Ying
subsystem This patch adds video0/1 power domains support for i.MX8qxp DC0 subsystem. Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-16firmware: imx-dsp: Export functions to request/free channelsDaniel Baluta
In order to save power, we only need to request a channel when the communication with the DSP active. For this we export the following functions: - imx_dsp_request_channel, gets a channel with a given index - imx_dsp_free_channel, frees a channel with a given index Notice that we still request channels at probe to support devices that do not have PM callbacks implemented. More explanations about why requesting a channel has an effect on power savings: - requesting an mailbox channel will call mailbox's startup function. - startup function calls pm_runtime_get_sync which increments device usage count and will keep the device active. Specifically, mailbox clock will be always ON when a mailbox channel is requested. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Paul Olaru <paul.olaru@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-16firmware: imx: Save channel name for further useDaniel Baluta
We want to request / free channels on demand later in order to save power. For this for each channel we save the name and use it to reference the channel later. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Paul Olaru <paul.olaru@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-16firmware: imx: Introduce imx_dsp_setup_channelsDaniel Baluta
Create a separate function that sets up DSP mailbox channels so that imx_dsp_probe function will be easier to read. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Paul Olaru <paul.olaru@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-11-16firmware: imx: scu-pd: Add power domains for imx-jpegMirela Rabulea
The power domains are for imx8qxp/imx8qm JPEG encoder & decoder. Each has 4 slots and a wrapper. Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com> Acked-by: Daniel Baluta <daniel.baluta@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-09-13firmware: imx: scu-pd: ignore power domain not ownedPeng Fan
Should not register power domain that not owned by current partition. Alought power domains will not be registered when power on failure, we have to let CPU waste more cycles. Whether power on or owned check, both need communicate with SCU, but with owned check, we no need to run more code path to save CPU cycles. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-07-13firmware: imx: Move i.MX SCU soc driver into imx firmware folderAnson Huang
The i.MX SCU soc driver depends on SCU firmware driver, so it has to use platform driver model for proper defer probe operation, since it has no device binding in DT file, a simple platform device is created together inside the platform driver. To make it more clean, we can just move the entire SCU soc driver into imx firmware folder and initialized by i.MX SCU firmware driver. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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