summaryrefslogtreecommitdiffstats
path: root/drivers/firmware/ti_sci.c (follow)
Commit message (Collapse)AuthorAgeFilesLines
* firmware: ti_sci: Fixup documentation errorsNishanth Menon2023-07-111-6/+7
| | | | | | | | | | | | | | | | | Fix up documentation errors, squashes the following warnings: drivers/firmware/ti_sci.c:1986: warning: Excess function parameter 'vint_irq' description in 'ti_sci_cmd_set_irq' drivers/firmware/ti_sci.c:2034: warning: Excess function parameter 'vint_irq' description in 'ti_sci_cmd_free_irq' drivers/firmware/ti_sci.c:2630: warning: Function parameter or member 'bootvector' not described in 'ti_sci_cmd_proc_set_config' drivers/firmware/ti_sci.c:2746: warning: Function parameter or member 'bv' not described in 'ti_sci_cmd_proc_get_status' drivers/firmware/ti_sci.c:2746: warning: Function parameter or member 'cfg_flags' not described in 'ti_sci_cmd_proc_get_status' drivers/firmware/ti_sci.c:2746: warning: Function parameter or member 'ctrl_flags' not described in 'ti_sci_cmd_proc_get_status' drivers/firmware/ti_sci.c:2746: warning: Function parameter or member 'sts_flags' not described in 'ti_sci_cmd_proc_get_status' drivers/firmware/ti_sci.c:2746: warning: expecting prototype for ti_sci_cmd_get_boot_status(). Prototype was for ti_sci_cmd_proc_get_status() instead drivers/firmware/ti_sci.c:3265: warning: Function parameter or member 'sub_type' not described in 'devm_ti_sci_get_resource' drivers/firmware/ti_sci.c:3265: warning: Excess function parameter 'suub_type' description in 'devm_ti_sci_get_resource' Link: https://lore.kernel.org/r/20230621021619.265162-1-nm@ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
* firmware: ti_sci: Use system_state to determine pollingNishanth Menon2023-07-111-34/+2
| | | | | | | | | | | | | | | | | | | | Commit b9e8a7d950ff ("firmware: ti_sci: Switch transport to polled mode during system suspend") aims to resolve issues with tisci operations during system suspend operation. However, the system may enter a no_irq stage in various other usage modes, including power-off and restart. To determine if polling mode is appropriate, use the system_state instead. While at this, drop the unused is_suspending state variable and related helpers. Fixes: b9e8a7d950ff ("firmware: ti_sci: Switch transport to polled mode during system suspend") Reported-by: Francesco Dolcini <francesco@dolcini.it> Reported-by: Wadim Egorov <w.egorov@phytec.de> Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Toradex Verdin AM62 Link: https://lore.kernel.org/r/20230620130329.4120443-1-nm@ti.com Closes: https://lore.kernel.org/all/ZGeHMjlnob2GFyHF@francesco-nb.int.toradex.com/ Signed-off-by: Nishanth Menon <nm@ti.com>
* firmware: ti_sci: Use devm_bitmap_zalloc when applicableChristophe JAILLET2022-11-041-5/+3
| | | | | | | | | | | | 'xfer_alloc_table' is a bitmap. So use 'devm_bitmap_zalloc()' to simplify code and improve the semantic of the code. While at it, remove a redundant 'bitmap_zero()' call. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/43ab1a7dd073d0d037d5d4bbbd5f8335de605826.1667457664.git.christophe.jaillet@wanadoo.fr
* firmware: ti_sci: Fix polled mode during system suspendGeorgi Vlaev2022-10-281-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | Commit b9e8a7d950ff ("firmware: ti_sci: Switch transport to polled mode during system suspend") uses read_poll_timeout_atomic() macro in ti_sci_do_xfer() to wait for completion when the system is suspending. The break condition of the macro is set to "true" which will cause it break immediately when evaluated, likely before the TISCI xfer is completed, and always return 0. We want to poll here until "done_state == true". 1) Change the break condition of read_poll_timeout_atomic() to the bool variable "done_state". 2) The read_poll_timeout_atomic() returns 0 if the break condition is met or -ETIMEDOUT if not. Since our break condition has changed to "done_state", we also don't have to check for "!done_state" when evaluating the return value. Fixes: b9e8a7d950ff ("firmware: ti_sci: Switch transport to polled mode during system suspend") Signed-off-by: Georgi Vlaev <g-vlaev@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20221021185704.181316-1-g-vlaev@ti.com
* firmware: ti_sci: Use the non-atomic bitmap API when applicableChristophe JAILLET2022-10-281-3/+3
| | | | | | | | | Usages of the 'res_map' bitmap is protected with a spinlock, so non-atomic functions can be used to set/clear bits. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/fb7edc555b6fa7c74707f13e422196693a834bc8.1657308216.git.christophe.jaillet@wanadoo.fr
* firmware: ti_sci: Use the bitmap API to allocate bitmapsChristophe JAILLET2022-10-281-3/+2
| | | | | | | | | | Use devm_bitmap_zalloc() instead of hand-writing them. It is less verbose and it improves the semantic. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/3ee11e9e83f7c1552d237f5c28f554319fcbbf1f.1657308216.git.christophe.jaillet@wanadoo.fr
* firmware: ti_sci: Switch transport to polled mode during system suspendDave Gerlach2022-05-031-6/+55
| | | | | | | | | | | | | | | | | | During system suspend it is completely valid for devices to invoke TISCI commands during the noirq phase of the suspend path. Specifically this will always be seen for devices that define a power-domains DT property and make use of the ti_sci_pm_domains genpd implementation. The genpd_finish_suspend call will power off devices during the noirq phase, which will invoke TISCI. In order to support this, the ti_sci driver must switch to not use wait_for_completion_timeout during suspend, but instead rely on a manual check for if the completion is not yet done, and proceed only if this is the case. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20220412192138.31189-1-d-gerlach@ti.com
* firmware: ti_sci: inproper error handling of ti_sci_probePeiwei Hu2022-02-021-1/+1
| | | | | | | | goto out instead of returning directly in error exiting Signed-off-by: Peiwei Hu <jlu.hpw@foxmail.com> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/tencent_0D5124AF8235001703711A7A09703F918806@qq.com
* firmware: ti_sci: rm: remove unneeded semicolonJason Wang2021-11-231-1/+1
| | | | | | | | The semicolon after `}' is unneeded. So, just remove it. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20211114055333.217919-1-wangborong@cdjrlc.com
* firmware: ti_sci: rm: Remove unused config() from ti_sci_rm_ringacc_opsPeter Ujfalusi2020-11-021-72/+0
| | | | | | | | | The ringacc driver has been converted to use the new set_cfg function to configure the ring, the old config ops can be removed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: rm: Add new ops for ring configurationPeter Ujfalusi2020-11-021-0/+63
| | | | | | | | | | | | | | | | | | The sysfw ring configuration message has been extended to include virtid and asel value for the ring. Add the ASEL_VALID to TI_SCI_MSG_VALUE_RM_ALL_NO_ORDER as it is required for DMA rings. Instead of extending the current .config() ops - which would need same patch change in the ringacc driver - add ti_sci_msg_rm_ring_cfg struct and a new ops using it to configure the ring. This will allow easy update path in case new members are added for the ring configuration. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: rm: Remove ring_get_config supportPeter Ujfalusi2020-11-021-80/+0
| | | | | | | | | The ring_get_cfg (0x1111 message) is not used and it is not supported by sysfw for a long time. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: rm: Add support for extended_ch_type for tx channelPeter Ujfalusi2020-11-021-0/+1
| | | | | | | | | | Sysfw added 'extended_ch_type' to the tx_ch_cfg_req message which should be used when BCDMA block copy channels are configured: extended_ch_type = 0 : the channel is split tx channel (tchan) extended_ch_type = 1 : the channel is block copy channel (bchan) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: rm: Add support for second resource rangePeter Ujfalusi2020-11-021-17/+31
| | | | | | | | | | Sysfw added support for a second range in the resource range API to be able to describe complex allocations mainly for DMA channels. Update the ti_sci part to consider the second range as well. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: Use struct ti_sci_resource_desc in get_range opsPeter Ujfalusi2020-11-021-17/+15
| | | | | | | | | | Use the ti_sci_resource_desc directly and update it's start and num members directly instead of requiring individual parameters for them. This will allow easy extension of the RM parameters without changing API. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: rm: Add support for tx_tdtype parameter for tx channelPeter Ujfalusi2020-11-021-0/+1
| | | | | | | | | | | | | | The system controller's resource manager have support for configuring the TDTYPE of TCHAN_CFG register on j721e. With this parameter the teardown completion can be controlled: TDTYPE == 0: Return without waiting for peer to complete the teardown TDTYPE == 1: Wait for peer to complete the teardown Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Tero Kristo <t-kristo@ti.com> Tested-by: Keerthy <j-keerthy@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2020-10-241-2/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms. A bulk of this is smaller fixes or cleanups, but some of the new material this time around is: - Support for Nvidia Tegra234 SoC - Ring accelerator support for TI AM65x - PRUSS driver for TI platforms - Renesas support for R-Car V3U SoC - Reset support for Cortex-M4 processor on i.MX8MQ There are also new socinfo entries for a handful of different SoCs and platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits) drm/mediatek: reduce clear event soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api soc: mediatek: cmdq: add jump function soc: mediatek: cmdq: add write_s_mask value function soc: mediatek: cmdq: add write_s value function soc: mediatek: cmdq: add read_s function soc: mediatek: cmdq: add write_s_mask function soc: mediatek: cmdq: add write_s function soc: mediatek: cmdq: add address shift in jump soc: mediatek: mtk-infracfg: Fix kerneldoc soc: amlogic: pm-domains: use always-on flag reset: sti: reset-syscfg: fix struct description warnings reset: imx7: add the cm4 reset for i.MX8MQ dt-bindings: reset: imx8mq: add m4 reset reset: Fix and extend kerneldoc reset: reset-zynqmp: Added support for Versal platform dt-bindings: reset: Updated binding for Versal reset driver reset: imx7: Support module build soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk soc: fsl: qman: convert to use be32_add_cpu() ...
| * firmware: ti_sci: allow frequency change for disabled clocks by defaultTero Kristo2020-09-121-2/+4
| | | | | | | | | | | | | | | | | | | | | | If a clock is disabled, its frequency should be allowed to change as it is no longer in use. Add a flag towards this to the firmware clock API handler routines. Acked-by: Nishanth Menon <nm@ti.com> Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* | firmware: ti_sci: Add support for getting resource with subtypeLokesh Vutla2020-08-161-22/+67
| | | | | | | | | | | | | | | | | | | | | | | | With SYSFW ABI 3.0 changes, interrupts coming out of an interrupt controller is identified by a type and it is consistent across SoCs. Similarly global events for Interrupt aggregator. So add an API to get resource range using a resource type. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20200806074826.24607-4-lokeshvutla@ti.com
* | firmware: ti_sci: Drop unused structure ti_sci_rm_type_mapLokesh Vutla2020-08-161-55/+1
| | | | | | | | | | | | | | | | | | | | struct ti_sci_rm_type_map is no longer used. Drop its definition and its declarations. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20200806074826.24607-3-lokeshvutla@ti.com
* | firmware: ti_sci: Drop the device id to resource type translationLokesh Vutla2020-08-161-11/+1
|/ | | | | | | | | | | With ABI 3.0, sysfw deprecated special resource types used for AM65x SoC. Instead started using device id as resource type similar to the convention used in J721E SOC. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Nishanth Menon <nm@ti.com> Link: https://lore.kernel.org/r/20200806074826.24607-2-lokeshvutla@ti.com
* firmware: ti_sci: Replace HTTP links with HTTPS onesAlexander A. Klimov2020-07-241-1/+1
| | | | | | | | | | | | | | | | | | | | | Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: Allow for device shared and exclusive requestsLokesh Vutla2019-09-041-2/+43
| | | | | | | | | | | | | | | | Sysfw provides an option for requesting exclusive access for a device using the flags MSG_FLAG_DEVICE_EXCLUSIVE. If this flag is not used, the device is meant to be shared across hosts. Once a device is requested from a host with this flag set, any request to this device from a different host will be nacked by sysfw. Current tisci driver enables this flag for every device requests. But this may not be true for all the devices. So provide a separate commands in driver for exclusive and shared device requests. Reviewed-by: Nishanth Menon <nm@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'armsoc-drivers' of ↵Linus Torvalds2019-07-201-7/+852
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms and a couple of the small driver subsystems we merge through our tree: - A driver for SCU (system control) on NXP i.MX8QXP - Qualcomm Always-on Subsystem messaging driver (AOSS QMP) - Qualcomm PM support for MSM8998 - Support for a newer version of DRAM PHY driver for Broadcom (DPFE) - Reset controller support for Bitmain BM1880 - TI SCI (System Control Interface) support for CPU control on AM654 processors - More TI sysc refactoring and rework" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits) reset: remove redundant null check on pointer dev soc: rockchip: work around clang warning dt-bindings: reset: imx7: Fix the spelling of 'indices' soc: imx: Add i.MX8MN SoC driver support soc: aspeed: lpc-ctrl: Fix probe error handling soc: qcom: geni: Add support for ACPI firmware: ti_sci: Fix gcc unused-but-set-variable warning firmware: ti_sci: Use the correct style for SPDX License Identifier soc: imx8: Use existing of_root directly soc: imx8: Fix potential kernel dump in error path firmware/psci: psci_checker: Park kthreads before stopping them memory: move jedec_ddr.h from include/memory to drivers/memory/ memory: move jedec_ddr_data.c from lib/ to drivers/memory/ MAINTAINERS: Remove myself as qcom maintainer soc: aspeed: lpc-ctrl: make parameter optional soc: qcom: apr: Don't use reg for domain id soc: qcom: fix QCOM_AOSS_QMP dependency and build errors memory: tegra: Fix -Wunused-const-variable firmware: tegra: Early resume BPMP soc/tegra: Select pinctrl for Tegra194 ...
| * firmware: ti_sci: Fix gcc unused-but-set-variable warningYueHaibing2019-06-191-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes gcc '-Wunused-but-set-variable' warning: drivers/firmware/ti_sci.c: In function ti_sci_cmd_ring_config: drivers/firmware/ti_sci.c:2035:17: warning: variable dev set but not used [-Wunused-but-set-variable] drivers/firmware/ti_sci.c: In function ti_sci_cmd_ring_get_config: drivers/firmware/ti_sci.c:2104:17: warning: variable dev set but not used [-Wunused-but-set-variable] drivers/firmware/ti_sci.c: In function ti_sci_cmd_rm_udmap_tx_ch_cfg: drivers/firmware/ti_sci.c:2287:17: warning: variable dev set but not used [-Wunused-but-set-variable] drivers/firmware/ti_sci.c: In function ti_sci_cmd_rm_udmap_rx_ch_cfg: drivers/firmware/ti_sci.c:2357:17: warning: variable dev set but not used [-Wunused-but-set-variable] Use the 'dev' variable instead of info->dev to fix this. Acked-by: Suman Anna <s-anna@ti.com> Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
| * firmware: ti_sci: Parse all resource ranges even if some is not availablePeter Ujfalusi2019-06-131-3/+10
| | | | | | | | | | | | | | | | | | | | Do not fail if any of the requested subtypes are not availabe, but set the number of resources to 0 and continue parsing the resource ranges. Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
| * firmware: ti_sci: Add support for processor controlSuman Anna2019-06-131-0/+350
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Texas Instrument's System Control Interface (TI-SCI) Message Protocol is used in Texas Instrument's System on Chip (SoC) such as those in K3 family AM654 SoC to communicate between various compute processors with a central system controller entity. The system controller provides various services including the control of other compute processors within the SoC. Extend the TI-SCI protocol support to add various TI-SCI commands to invoke services associated with power and reset control, and boot vector management of the various compute processors from the Linux kernel. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
| * firmware: ti_sci: Add resource management APIs for ringacc, psi-l and udmaPeter Ujfalusi2019-06-131-0/+488
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Configuration of NAVSS resource, like rings, UDMAP channels, flows and PSI-L thread management need to be done via TISCI. Add the needed structures and functions for NAVSS resource configuration of the following: Rings from Ring Accelerator PSI-L thread management UDMAP tchan, rchan and rflow configuration. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
| * firmware: ti_sci: Always request response from firmwareAndrew F. Davis2019-06-131-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TI-SCI firmware will only respond to messages when the TI_SCI_FLAG_REQ_ACK_ON_PROCESSED flag is set. Most messages already do this, set this for the ones that do not. This will be enforced in future firmware that better match the TI-SCI specifications, this patch will not break users of existing firmware. Fixes: aa276781a64a ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol") Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Tested-by: Alejandro Hernandez <ajhernandez@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* | clk: ti: Use int to check return value from of_property_count_elems_of_size()Stephen Boyd2019-06-251-4/+5
| | | | | | | | | | | | | | | | | | This function can return a negative number when it fails, but res->sets is at most a u16 which can't hold that negative number. Let's store the result into an int, ret, and then assign that to res->sets when it works to avoid this logical impossibility. Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* | firmware: ti_sci: extend clock identifiers from u8 to u32Tero Kristo2019-06-121-31/+84
|/ | | | | | | | | | | | | | | Future SoCs are going to have more than 255 device clocks in certain cases, and thus the API must be extended to support this. The support is done in backwards compatible extension, in which the new u32 clock identifier fields are only used if the existing u8 size clock identifier is set as 255. In all the other cases, the existing u8 clock identifier is used. As the size of the messages sent / received is not verified for existing devices / old firmware, increasing the size of the messages from the end is also fine. Due to this reason, depending on ABI version isn't necessary either. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tero Kristo <t-kristo@ti.com>
* firmware: ti_sci: Add helper apis to manage resourcesLokesh Vutla2019-05-011-0/+130
| | | | | | | | | | | Each resource with in the device can be uniquely identified as defined by TISCI. Since this is generic across the devices, resource allocation also can be made generic instead of each client driver handling the resource. So add helper apis to manage the resource. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* firmware: ti_sci: Add RM mapping table for am654Peter Ujfalusi2019-05-011-0/+23
| | | | | | | | | | | | | | Add the resource mapping table for AM654 SoC as defined in http://downloads.ti.com/tisci/esd/latest/5_soc_doc/am6x/resasg_types.html Introduce a new compatible for AM654 "ti,am654-sci" for using this resource map table. Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* firmware: ti_sci: Add support for IRQ managementLokesh Vutla2019-05-011-0/+245
| | | | | | | | | | TISCI abstracts the handling of IRQ routes where interrupt sources are not directly connected to host interrupt controller. Add support for the set of TISCI commands for requesting and releasing IRQs. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* firmware: ti_sci: Add support for RM core opsLokesh Vutla2019-05-011-0/+170
| | | | | | | | | | | | | | | | TISCI provides support for getting the resources(IRQ, RING etc..) assigned to a specific device. These resources can be handled by the client and in turn sends TISCI cmd to configure the resources. It is very important that client should keep track on usage of these resources. Add support for TISCI commands to get resource ranges. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* firmware: ti_sci: Add support to get TISCI handle using of_phandleGrygorii Strashko2019-05-011-0/+83
| | | | | | | | | | | | | | | | | | | TISCI has been updated to have support for Resource management(like interrupts etc..). And there can be multiple device instances of a resource type in a SoC. So every driver corresponding to a resource type should get a TISCI handle so that it can make TISCI calls. And each DT node corresponding to a device should exist under its corresponding bus node as per the SoC architecture. But existing apis in TISCI library assumes that all TISCI users are child nodes of TISCI. Which is not true in the above case. So introduce (devm_)ti_sci_get_by_phandle() apis that can be used by TISCI users to get TISCI handle using of phandle property. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* firmware: ti_sci: Change to use DEFINE_SHOW_ATTRIBUTE macroYangtao Li2019-01-301-19/+2
| | | | | | | | Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Reviewed-by: Nishanth Menon <nm@ti.com> Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: Provide host-id as an optional dt parameterNishanth Menon2018-08-281-4/+20
| | | | | | | | | | | | | | | | | Texas Instrument's System Control Interface (TISCI) permits the ability for Operating Systems to running in virtual machines to be able to independently communicate with the firmware without the need going through an hypervisor. The "host-id" in effect is the hardware representation of the host (example: VMs locked to a core) as identified to the System Controller. Provide support as an optional parameter implementation and use the compatible data as default if one is not provided by device tree. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* Merge tag 'overflow-v4.18-rc1-part2' of ↵Linus Torvalds2018-06-131-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull more overflow updates from Kees Cook: "The rest of the overflow changes for v4.18-rc1. This includes the explicit overflow fixes from Silvio, further struct_size() conversions from Matthew, and a bug fix from Dan. But the bulk of it is the treewide conversions to use either the 2-factor argument allocators (e.g. kmalloc(a * b, ...) into kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a * b) into vmalloc(array_size(a, b)). Coccinelle was fighting me on several fronts, so I've done a bunch of manual whitespace updates in the patches as well. Summary: - Error path bug fix for overflow tests (Dan) - Additional struct_size() conversions (Matthew, Kees) - Explicitly reported overflow fixes (Silvio, Kees) - Add missing kvcalloc() function (Kees) - Treewide conversions of allocators to use either 2-factor argument variant when available, or array_size() and array3_size() as needed (Kees)" * tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits) treewide: Use array_size in f2fs_kvzalloc() treewide: Use array_size() in f2fs_kzalloc() treewide: Use array_size() in f2fs_kmalloc() treewide: Use array_size() in sock_kmalloc() treewide: Use array_size() in kvzalloc_node() treewide: Use array_size() in vzalloc_node() treewide: Use array_size() in vzalloc() treewide: Use array_size() in vmalloc() treewide: devm_kzalloc() -> devm_kcalloc() treewide: devm_kmalloc() -> devm_kmalloc_array() treewide: kvzalloc() -> kvcalloc() treewide: kvmalloc() -> kvmalloc_array() treewide: kzalloc_node() -> kcalloc_node() treewide: kzalloc() -> kcalloc() treewide: kmalloc() -> kmalloc_array() mm: Introduce kvcalloc() video: uvesafb: Fix integer overflow in allocation UBIFS: Fix potential integer overflow in allocation leds: Use struct_size() in allocation Convert intel uncore to struct_size ...
| * treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook2018-06-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* | firmware: ti_sci: Switch to SPDX LicensingLokesh Vutla2018-05-051-9/+1
|/ | | | | | | | Switch to SPDX licensing and drop the GPL text which comes redundant. Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* firmware: ti_sci: Use %zu for size_t print formatNishanth Menon2017-12-161-2/+2
| | | | | | | | | mbox_msg->len is of type size_t and %d is incorrect format. Instead use %zu for handling size_t correctly. Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
* ti_sci: Use %pS printk format for direct addressesHelge Deller2017-10-091-1/+1
| | | | | | | | | | | Use the %pS printk format for printing symbols from direct addresses. This is important for the ia64, ppc64 and parisc64 architectures, while on other architectures there is no difference between %pS and %pF. Fix it for consistency across the kernel. Signed-off-by: Helge Deller <deller@gmx.de> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
* firmware: ti_sci: fix strncat length checkArnd Bergmann2017-05-191-1/+2
| | | | | | | | | | | | | | | | gcc-7 notices that the length we pass to strncat is wrong: drivers/firmware/ti_sci.c: In function 'ti_sci_probe': drivers/firmware/ti_sci.c:204:32: error: specified bound 50 equals the size of the destination [-Werror=stringop-overflow=] Instead of the total length, we must pass the length of the remaining space here. Fixes: aa276781a64a ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol") Cc: stable@vger.kernel.org Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* firmware: ti_sci: Add support for reboot core serviceNishanth Menon2016-10-271-0/+83
| | | | | | | | | | | | | | | | | Since system controller now has control over SoC power management, it needs to be explicitly requested to reboot the SoC. Add support for it. In some systems however, SoC needs to toggle a GPIO or send event to an external entity (like a PMIC) for a system reboot to take place. To facilitate that, we allow for a DT property to determine if the reboot handler will be registered and further, the service is also made available to other drivers (such as PMIC driver) to sequence the additional operation and trigger the SoC reboot as the last step. Tested-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
* firmware: ti_sci: Add support for Clock controlNishanth Menon2016-10-271-0/+685
| | | | | | | | | | | | | | | | | | | | | | Texas Instrument's System Control Interface (TI-SCI) Message Protocol is used in Texas Instrument's System on Chip (SoC) such as those in keystone family K2G SoC to communicate between various compute processors with a central system controller entity. TI-SCI message protocol provides support for management of various hardware entities within the SoC. Add support driver to allow communication with system controller entity within the SoC using the mailbox client. In general, we expect to function at a device level of abstraction, however, for proper operation of hardware blocks, many clocks directly supplying the hardware block needs to be queried or configured. Introduce support for the set of SCI message protocol support that provide us with this capability. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
* firmware: ti_sci: Add support for Device controlNishanth Menon2016-10-271-0/+433
| | | | | | | | | | | | | | | | | | | | Texas Instrument's System Control Interface (TI-SCI) Message Protocol is used in Texas Instrument's System on Chip (SoC) such as those in keystone family K2G SoC to communicate between various compute processors with a central system controller entity. TI-SCI message protocol provides support for management of various hardware entitites within the SoC. Add support driver to allow communication with system controller entity within the SoC using the mailbox client. We introduce the fundamental device management capability support to the driver protocol as part of this change. [d-gerlach@ti.com: Contributed device reset handling] Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
* firmware: Add basic support for TI System Control Interface (TI-SCI) protocolNishanth Menon2016-10-271-0/+790
Texas Instrument's System Control Interface (TI-SCI) Message Protocol is used in Texas Instrument's System on Chip (SoC) such as those in keystone family K2G SoC to communicate between various compute processors with a central system controller entity. TI-SCI message protocol provides support for management of various hardware entities within the SoC. Add support driver to allow communication with system controller entity within the SoC using the mailbox client. We introduce the basic registration and query capability for the driver protocol as part of this change. Subsequent patches add in functionality specific to the TI-SCI features. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 18:01:04 +0100