summaryrefslogtreecommitdiff
path: root/drivers/bus
AgeCommit message (Collapse)AuthorFilesLines
2019-09-17Merge tag 'armsoc-drivers' of ↵Linus Torvalds8-17/+923
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC driver updates from Arnd Bergmann: "This contains driver changes that are tightly connected to SoC specific code. Aside from smaller cleanups and bug fixes, here is a list of the notable changes. New device drivers: - The Turris Mox router has a new "moxtet" bus driver for its on-board pluggable extension bus. The same platform also gains a firmware driver. - The Samsung Exynos family gains a new Chipid driver exporting using the soc device sysfs interface - A similar socinfo driver for Qualcomm Snapdragon chips. - A firmware driver for the NXP i.MX DSP IPC protocol using shared memory and a mailbox Other changes: - The i.MX reset controller driver now supports the NXP i.MX8MM chip - Amlogic SoC specific drivers gain support for the S905X3 and A311D chips - A rework of the TI Davinci framebuffer driver to allow important cleanups in the platform code - A couple of device drivers for removed ARM SoC platforms are removed. Most of the removals were picked up by other maintainers, this contains whatever was left" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits) bus: uniphier-system-bus: use devm_platform_ioremap_resource() soc: ti: ti_sci_pm_domains: Add support for exclusive and shared access dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared access firmware: ti_sci: Allow for device shared and exclusive requests bus: imx-weim: remove incorrect __init annotations fbdev: remove w90x900/nuc900 platform drivers spi: remove w90x900 driver net: remove w90p910-ether driver net: remove ks8695 driver firmware: turris-mox-rwtm: Add sysfs documentation firmware: Add Turris Mox rWTM firmware driver dt-bindings: firmware: Document cznic,turris-mox-rwtm binding bus: moxtet: fix unsigned comparison to less than zero bus: moxtet: remove set but not used variable 'dummy' ARM: scoop: Use the right include dt-bindings: power: add Amlogic Everything-Else power domains bindings soc: amlogic: Add support for Everything-Else power domains controller fbdev: da8xx: use resource management for dma fbdev: da8xx-fb: drop a redundant if fbdev: da8xx-fb: use devm_platform_ioremap_resource() ...
2019-09-05bus: uniphier-system-bus: use devm_platform_ioremap_resource()Masahiro Yamada1-3/+1
Replace the chain of platform_get_resource() and devm_ioremap_resource() with devm_platform_ioremap_resource(). This allows to remove the local variable for (struct resource *), and have one function call less. Link: https://lore.kernel.org/r/20190905032122.26076-1-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04bus: imx-weim: remove incorrect __init annotationsArnd Bergmann1-5/+5
The probe function is no longer __init, so anything it calls now must also be available at runtime, as Kbuild points out when building with clang-9: WARNING: vmlinux.o(.text+0x6e7040): Section mismatch in reference from the function weim_probe() to the function .init.text:imx_weim_gpr_setup() The function weim_probe() references the function __init imx_weim_gpr_setup(). This is often because weim_probe lacks a __init annotation or the annotation of imx_weim_gpr_setup is wrong. WARNING: vmlinux.o(.text+0x6e70f0): Section mismatch in reference from the function weim_probe() to the function .init.text:weim_timing_setup() The function weim_probe() references the function __init weim_timing_setup(). This is often because weim_probe lacks a __init annotation or the annotation of weim_timing_setup is wrong. Remove the remaining __init markings that are now wrong. Fixes: 4a92f07816ba ("bus: imx-weim: use module_platform_driver()") Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04bus: moxtet: fix unsigned comparison to less than zeroColin Ian King1-1/+1
Currently the size_t variable res is being checked for an error failure however the unsigned variable is never less than zero so this test is always false. Fix this by making variable res ssize_t Link: https://lore.kernel.org/r/20190822010351.15660-2-marek.behun@nic.cz Addresses-Coverity: ("Unsigned compared against 0") Fixes: 5bc7f990cd98 ("bus: Add support for Moxtet bus") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Marek Behún <marek.behun@nic.cz> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-04bus: moxtet: remove set but not used variable 'dummy'Jason Yan1-2/+1
Fixes gcc '-Wunused-but-set-variable' warning: drivers/bus/moxtet.c: In function moxtet_remove: drivers/bus/moxtet.c:822:6: warning: variable dummy set but not used [-Wunused-but-set-variable] Link: https://lore.kernel.org/r/20190822010351.15660-3-marek.behun@nic.cz Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Marek Behún <marek.behun@nic.cz> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03Merge tag 'imx-drivers-5.4' of ↵Arnd Bergmann1-4/+20
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers i.MX drivers update for 5.4: - A series from Anson Huang to add UID support for i.MX8 SoC and SCU drivers. - A series from Daniel Baluta to add DSP IPC driver for communication between host AP (Linux) and the firmware running on DSP embedded in i.MX8 SoCs. - A small fix for GPCv2 error code printing. - Switch from module_platform_driver_probe() to module_platform_driver() for imx-weim driver, as we need the driver to probe again when device is present later. - Add optional burst clock mode support for imx-weim driver. * tag 'imx-drivers-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: soc: imx: gpcv2: Print the correct error code bus: imx-weim: use module_platform_driver() firmware: imx: Add DSP IPC protocol interface soc: imx-scu: Add SoC UID(unique identifier) support bus: imx-weim: optionally enable burst clock mode firmware: imx: scu-pd: Add IRQSTR_DSP PD range firmware: imx: scu-pd: Add mu13 b side PD range firmware: imx: scu-pd: Rename mu PD range to mu_a soc: imx8: Add i.MX8MM UID(unique identifier) support soc: imx8: Add i.MX8MQ UID(unique identifier) support Link: https://lore.kernel.org/r/20190825153237.28829-1-shawnguo@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-03Merge tag 'sunxi-drivers-for-5.4-2' of ↵Arnd Bergmann1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/drivers Allwinner drivers patches for 5.4 One driver to remove a redundant error message in the Allwinner RSB driver. * tag 'sunxi-drivers-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq() Link: https://lore.kernel.org/r/f9edfc8e-19b7-4b6e-897a-35f3bdcc8643.lettre@localhost Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-29Merge tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi into ↵Arnd Bergmann1-6/+41
arm/fixes Hisilicon fixes for v5.3-rc - Fixed RCU usage in logical PIO - Added a function to unregister a logical PIO range in logical PIO to support the fixes in the hisi-lpc driver - Fixed and optimized hisi-lpc driver to avoid potential use-after-free and driver unbind crash * tag 'hisi-fixes-for-5.3' of git://github.com/hisilicon/linux-hisi: bus: hisi_lpc: Add .remove method to avoid driver unbind crash bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-free lib: logic_pio: Add logic_pio_unregister_range() lib: logic_pio: Avoid possible overlap for unregistering regions lib: logic_pio: Fix RCU usage Link: https://lore.kernel.org/r/5D562335.7000902@hisilicon.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-19bus: imx-weim: use module_platform_driver()Sascha Hauer1-4/+4
Switch from module_platform_driver_probe() to module_platform_driver(). The former is not suitable for booting with device tree as the driver will be registered before the device and thus won't be probed again when the device is present. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-08-16bus: fsl-mc: remove explicit device_link_delIoana Ciornei2-2/+0
Starting with commit 72175d4ea4c4 ("driver core: Make driver core own stateful device links") stateful device links are owned by the driver core and should not be explicitly removed on device unbind. Delete all device_link_del appearances from the fsl-mc bus. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-By: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-08-14bus: Add support for Moxtet busMarek Behún3-0/+897
On the Turris Mox router different modules can be connected to the main CPU board: currently a module with a SFP cage, a module with MiniPCIe connector, a PCIe pass-through MiniPCIe connector module, a 4-port switch module, an 8-port switch module, and a 4-port USB3 module. For example: [CPU]-[PCIe-pass-through]-[PCIe]-[8-port switch]-[8-port switch]-[SFP] Each of this modules has an input and output shift register, and these are connected via SPI to the CPU board. Via SPI we are able to discover which modules are connected, in which order, and we can also read some information about the modules (eg. their interrupt status), and configure them. From each module 8 bits can be read (of which low 4 bits identify the module) and 8 bits can be written. For example from the module with a SFP cage we can read the LOS, TX-FAULT and MOD-DEF0 signals, while we can write TX-DISABLE and RATE-SELECT signals. This driver creates a new bus type, called "moxtet". For each Mox module it finds via SPI, it creates a new device on the moxtet bus so that drivers can be written for them. It also implements a virtual interrupt controller for the modules which send their interrupt status over the SPI shift register. These modules do this in addition to sending their interrupt status via the shared interrupt line. When the shared interrupt is triggered, we read from the shift register and handle IRQs for all devices which are in interrupt. The topology of how Mox modules are connected can then be read by listing /sys/bus/moxtet/devices. Link: https://lore.kernel.org/r/20190812161118.21476-2-marek.behun@nic.cz Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-08-13bus: ti-sysc: Simplify cleanup upon failures in sysc_probe()Suman Anna1-7/+7
The clocks are not yet parsed and prepared until after a successful sysc_get_clocks(), so there is no need to unprepare the clocks upon any failure of any of the prior functions in sysc_probe(). The current code path would have been a no-op because of the clock validity checks within sysc_unprepare(), but let's just simplify the cleanup path by returning the error directly. While at this, also fix the cleanup path for a sysc_init_resets() failure which is executed after the clocks are prepared. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-08-13bus: hisi_lpc: Add .remove method to avoid driver unbind crashJohn Garry1-2/+36
The original driver author seemed to be under the impression that a driver cannot be removed if it does not have a .remove method. Or maybe if it is a built-in platform driver. This is not true. This crash can be created: root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# echo HISI0191\:00 > unbind root@ubuntu:/sys/bus/platform/drivers/hisi-lpc# ipmitool raw 6 1 Unable to handle kernel paging request at virtual address ffff000010035010 Mem abort info: ESR = 0x96000047 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000047 CM = 0, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000000118b000 [ffff000010035010] pgd=0000041ffbfff003, pud=0000041ffbffe003, pmd=0000041ffbffd003, pte=0000000000000000 Internal error: Oops: 96000047 [#1] PREEMPT SMP Modules linked in: CPU: 17 PID: 1473 Comm: ipmitool Not tainted 5.2.0-rc5-00003-gf68c53b414a3-dirty #198 Hardware name: Huawei Taishan 2280 /D05, BIOS Hisilicon D05 IT21 Nemo 2.0 RC0 04/18/2018 pstate: 20000085 (nzCv daIf -PAN -UAO) pc : hisi_lpc_target_in+0x7c/0x120 lr : hisi_lpc_target_in+0x70/0x120 sp : ffff00001efe3930 x29: ffff00001efe3930 x28: ffff841f9f599200 x27: 0000000000000002 x26: 0000000000000000 x25: 0000000000000080 x24: 00000000000000e4 x23: 0000000000000000 x22: 0000000000000064 x21: ffff801fb667d280 x20: 0000000000000001 x19: ffff00001efe39ac x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff841febe60340 x7 : ffff801fb55c52e8 x6 : 0000000000000000 x5 : 0000000000ffc0e3 x4 : 0000000000000001 x3 : ffff801fb667d280 x2 : 0000000000000001 x1 : ffff000010035010 x0 : ffff000010035000 Call trace: hisi_lpc_target_in+0x7c/0x120 hisi_lpc_comm_in+0x88/0x98 logic_inb+0x5c/0xb8 port_inb+0x18/0x20 bt_event+0x38/0x808 smi_event_handler+0x4c/0x5a0 check_start_timer_thread.part.4+0x40/0x58 sender+0x78/0x88 smi_send.isra.6+0x94/0x108 i_ipmi_request+0x2c4/0x8f8 ipmi_request_settime+0x124/0x160 handle_send_req+0x19c/0x208 ipmi_ioctl+0x2c0/0x990 do_vfs_ioctl+0xb8/0x8f8 ksys_ioctl+0x80/0xb8 __arm64_sys_ioctl+0x1c/0x28 el0_svc_common.constprop.0+0x64/0x160 el0_svc_handler+0x28/0x78 el0_svc+0x8/0xc Code: 941d1511 aa0003f9 f94006a0 91004001 (b9000034) ---[ end trace aa842b86af7069e4 ]--- The problem here is that the host goes away but the associated logical PIO region remains registered, as do the children devices. Fix by adding a .remove method to tidy-up by removing the child devices and unregistering the logical PIO region. Cc: stable@vger.kernel.org Fixes: adf38bb0b595 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings") Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-13bus: hisi_lpc: Unregister logical PIO range to avoid potential use-after-freeJohn Garry1-5/+6
If, after registering a logical PIO range, the driver probe later fails, the logical PIO range memory will be released automatically. This causes an issue, in that the logical PIO range is not unregistered and the released range memory may be later referenced. Fix by unregistering the logical PIO range. And since we now unregister the logical PIO range for probe failure, avoid the special ordering of setting logical PIO range ops, which was the previous (poor) attempt at a safeguard against this. Cc: stable@vger.kernel.org Fixes: adf38bb0b595 ("HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings") Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-08-06bus: sunxi-rsb: Remove dev_err() usage after platform_get_irq()Stephen Boyd1-3/+1
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2019-08-03bus: imx-weim: optionally enable burst clock modeSven Van Asbroeck1-0/+16
To enable burst clock mode, add the fsl,burst-clk-enable property to the weim bus's devicetree node. Example: weim: weim@21b8000 { compatible = "fsl,imx6q-weim"; reg = <0x021b8000 0x4000>; clocks = <&clks 196>; #address-cells = <2>; #size-cells = <1>; ranges = <0 0 0x08000000 0x08000000>; fsl,weim-cs-gpr = <&gpr>; fsl,burst-clk-enable; client-device@0,0 { compatible = "something"; reg = <0 0 0x02000000>; #address-cells = <1>; #size-cells = <1>; bank-width = <2>; fsl,weim-cs-timing = <0x00620081 0x00000001 0x1c022000 0x0000c000 0x1404a38e 0x00000000>; }; }; Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-07-24ARM: dts: Fix incorrect dcan register mapping for am3, am4 and dra7Tony Lindgren1-1/+2
We are currently using a wrong register for dcan revision. Although this is currently only used for detecting the dcan module, let's fix it to avoid confusion. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24bus: ti-sysc: Fix using configured sysc mask valueTony Lindgren1-4/+1
We have cases where there are no softreset bits like with am335x lcdc. In that case ti,sysc-mask = <0> needs to be handled properly. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-24bus: ti-sysc: Fix handling of forced idleTony Lindgren1-1/+1
For some devices we can get the following warning on boot: ti-sysc 48485200.target-module: sysc_disable_module: invalid midlemode Fix this by treating SYSC_IDLE_FORCE like we do for the other bits for idlemodes mask. Fixes: d59b60564cbf ("bus: ti-sysc: Add generic enable/disable functions") Cc: Roger Quadros <rogerq@ti.com> Reviewed-by: Suman Anna <s-anna@ti.com> Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-07-20Merge tag 'armsoc-drivers' of ↵Linus Torvalds5-84/+436
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 ...
2019-06-21Merge tag 'spdx-5.2-rc6' of ↵Linus Torvalds2-8/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull still more SPDX updates from Greg KH: "Another round of SPDX updates for 5.2-rc6 Here is what I am guessing is going to be the last "big" SPDX update for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates that were "easy" to determine by pattern matching. The ones after this are going to be a bit more difficult and the people on the spdx list will be discussing them on a case-by-case basis now. Another 5000+ files are fixed up, so our overall totals are: Files checked: 64545 Files with SPDX: 45529 Compared to the 5.1 kernel which was: Files checked: 63848 Files with SPDX: 22576 This is a huge improvement. Also, we deleted another 20000 lines of boilerplate license crud, always nice to see in a diffstat" * tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485 ...
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2-8/+2
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-17Merge tag 'omap-for-v5.3/ti-sysc-signed' of ↵Olof Johansson1-86/+389
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers ti-sysc interconnect target module driver changes for v5.3 This series of changes improves probing devices with ti-sysc to the point where we can now probe most devices without the custom dts property "ti,hwmods" and no legacy platform data :) We add support for platform data callbacks for idling and unidling the clockdomain the module belongs to. The rest of the series mostly adds handling for the various quirks needed by old legacy modules such as i2c and watchdog. Some quirk handling is still missing for few modules, but those will be added as they get tested. The related platform data and dts changes will be sent separately. * tag 'omap-for-v5.3/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Add support for module specific reset quirks bus: ti-sysc: Detect uarts also on omap34xx bus: ti-sysc: Do rstctrl reset handling in two phases bus: ti-sysc: Add support for disabling module without legacy mode bus: ti-sysc: Set ENAWAKEUP if available bus: ti-sysc: Handle swsup idle mode quirks bus: ti-sysc: Handle clockactivity for enable and disable bus: ti-sysc: Enable interconnect target module autoidle bit on enable bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits bus: ti-sysc: Support 16-bit writes too bus: ti-sysc: Add support for missing clockdomain handling ARM: dts: dra71x: Disable usb4_tm target module ARM: dts: dra71x: Disable rtc target module ARM: dts: dra76x: Disable usb4_tm target module ARM: dts: dra76x: Disable rtc target module ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values ARM: dts: am57xx-idk: Remove support for voltage switching for SD card bus: ti-sysc: Handle devices with no control registers ARM: dts: Configure osc clock for d_can on am335x Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17Merge tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux ↵Olof Johansson1-2/+2
into arm/drivers This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes for 5.3, please pull the following: - Markus provides a set of updates to the DPFE driver to support a new revision of the API to the firmware (version 3) and provides minor fixes about how the MR4-8 words are read for LPDDR4 devices - Florian removes a print of a virtual address in brcmstb_gisb.c * tag 'arm-soc/for-5.3/drivers' of https://github.com/Broadcom/stblinux: memory: brcmstb: dpfe: introduce DPFE API v3 memory: brcmstb: dpfe: prepare for API-dependent sysfs attributes memory: brcmstb: dpfe: prepare support for multiple API versions memory: brcmstb: dpfe: wait for DCPU to be ready memory: brcmstb: dpfe: report firmware loading error memory: brcmstb: dpfe: remove unused code and fix formatting bus: brcmstb_gisb: Remove print of base address memory: brcmstb: dpfe: use byte 3 of registers MR4-MR8 memory: brcmstb: dpfe: optimize generic_show() memory: brcmstb: dpfe: use msleep() over udelay() Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17Merge tag 'soc-fsl-next-v5.3' of ↵Olof Johansson3-7/+55
git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers NXP/FSL SoC driver updates for v5.3 DPAA2 Console driver - Add driver to export two char devices to dump logs for MC and AIOP DPAA2 DPIO driver - Add support for memory backed QBMan portals - Increase the timeout period to prevent false error - Add APIs to retrieve QBMan portal probing status DPAA Qman driver - Only make liodn fixup on powerpc SoCs with PAMU iommu * tag 'soc-fsl-next-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux: soc: fsl: qbman_portals: add APIs to retrieve the probing status soc: fsl: qman: fixup liodns only on ppc targets soc: fsl: dpio: Add support for memory backed QBMan portals bus: mc-bus: Add support for mapping shareable portals soc: fsl: dpio: Increase timeout for QBMan Management Commands soc: fsl: add DPAA2 console support Documentation: DT: Add entry for DPAA2 console soc: fsl: guts: Add definition for LX2160A Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16Merge tag 'omap-for-v5.2/fixes-rc2' of ↵Olof Johansson1-12/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omap variants for dra7 mmc voltage and boot issues This series contains dra7 mmc voltage fixes, and fixes to the recent changes to probe devices with device tree data insteas of legacy platform data: - Two fixes for dra7 mmc that needs 1.8V mode disabled as in case of a reset, the bootrom will try to access the mmc card at 3.3V potentially damaging the card - Two regression fixes for am335x d_can. We must allow devices with no control registers for ti-sysc interconnect target module driver for at least d_can, and we remove the incorrect control registers for d_can. And we must configure the osc clock for d_can as otherwise register access may fail depending on the bootloader version - Four regression fixes for dra7 variant dts files to tag rtc and usb4 as disabled for dra71x and dra76x. These SoC variants do not have these devices, and got accidentally enabled when the L4 interconnect got defined in the dra7-l4.dtsi for the dra7 SoC family * tag 'omap-for-v5.2/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: dra71x: Disable usb4_tm target module ARM: dts: dra71x: Disable rtc target module ARM: dts: dra76x: Disable usb4_tm target module ARM: dts: dra76x: Disable rtc target module ARM: dts: dra76x: Update MMC2_HS200_MANUAL1 iodelay values ARM: dts: am57xx-idk: Remove support for voltage switching for SD card bus: ti-sysc: Handle devices with no control registers ARM: dts: Configure osc clock for d_can on am335x Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-10bus: ti-sysc: Add support for module specific reset quirksTony Lindgren1-5/+124
Some older interconnect target modules need module internal clock toggling quirks to reset properly. We've been doing this in the platform code earlier, but need to be able to it directly in the ti-sysc driver when we no longer rely on on the platform code. Let's add reset handling for 1-wire, i2c and watchdog. Later on we can add more modules like msdi and dss as they get tested. For dra7 pcie, we should be able to just use the rstctrl reset driver when available. Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner2-17/+2
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner2-21/+2
Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner2-30/+2
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-28bus: ti-sysc: Detect uarts also on omap34xxTony Lindgren1-1/+3
Looks like we currently only detect UART on omap36xx, let's also add support for omap34xx. And let's also fix the SWSUP mode, it should be SWSUP_SIDLE for omap3, not SWSUP_SIDLE_ACT like for omap4 and later. Note that we are still booting omap3 for most part without ti-sysc, so no need to treat this change as a fix. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Do rstctrl reset handling in two phasesTony Lindgren1-8/+17
We need to deassert rstctrl resets before enabling clocks to avoid clock "failed to enable" errors. For asserting rstctrl reset, the clocks need to be enabled. As the reset controller status is not available for arrays, let's use devm_reset_control_get_optional() so we can get the status after reset. Note that depends on a proper PRM rstctrl driver, so far I've only tested this with earlier reset-simple patches. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Add support for disabling module without legacy modeTony Lindgren1-4/+17
We must not assert reset for modules with no child device drivers until in runtime_suspend. Otherwise register access will fail without legacy mode helping us. Let's add a flag for disable_on_idle and move the reset driver handling to runtime suspend and resume. We can then also use the disable_on_idle flag to reconfigure sysconfig register for PM modes requesting it. Let's also make the other flags use bitfield while at it instead of bool. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Set ENAWAKEUP if availableTony Lindgren1-0/+5
Some modules have ENAWAKEUP bit that we need to configure when not relying on platform data callbacks. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Handle swsup idle mode quirksTony Lindgren1-8/+17
Some modules have idlemodes wired, but not completely functional. We have quirks for SWSUP_SIDLE and SWSUP_SIDLE_ACT to manage interconnect target modules without hardware support, but we've been only using them so far in legacy mode. Let's add support for SWSUP quirks in non-legacy mode too. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Handle clockactivity for enable and disableTony Lindgren1-0/+7
Modules with clockactivity need it configured during enable. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Enable interconnect target module autoidle bit on enableTony Lindgren1-1/+12
For interconnect target modules with autoidle bit wired, we need to manage it for enable and disable. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not setTony Lindgren1-3/+0
We need to specify QUIRK_LEGACY_IDLE for device drivers that still have pm_runtime_irq_safe() set like 8250. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bitsTony Lindgren1-18/+54
We've had minimal OCP softreset support in ti-sysc interconnect target module driver only used for MCAN driver so far. But it turns out that MCAN has the sysstatus register resetdone bit inverted compared to most other modules. Let's make OCP softreset work for other typical cases with reset status in sysstatus or sysconfig register so we can use the new functions for sysc_enable_module() and sysc_disable_module() without "ti,hwmods" property in the following patches. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Support 16-bit writes tooTony Lindgren1-1/+22
We need to also support 16-bit writes for i2c in addition to the reads when we start configuring the sysconfig register for reset and idle modes. Note that only i2c revision register has LO and HI registers, so let's add a check also for 16-bit register read. This change is currently cosmetic and does not affect anything until we enable the module specific quirk handling for i2c reset and enable later on. Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-28bus: ti-sysc: Add support for missing clockdomain handlingTony Lindgren1-26/+101
We need to let ti-sysc driver manage clockdomain autoidle for the duration of of reset, enable and idle. And we need to do it before we enable the clock and after we disable it. Currently we are still relying on platform callbacks indirectly managing clockdomain autoidle. But I noticed that for device tree only probed drivers it now happens only after we enabling the clocks and before we disable the clocks, while it should be the other way around. So far I have not noticed any issues with this though. Let's add new ti_sysc_clkdm_deny_idle() and ti_sysc_clkdm_allow_idle() functions for ti-sysc driver to use to manage clockdomains directly via platform data callbacks. Note that we can implement the clockdomain functions in pdata-quirks.c as for probing devices without "ti,hwmods" custom property we don't need to use the other platform data callbacks. Let's do this in one patch as there's is still an unlikely chance we may need to apply this as a fix for v5.2 for dropping legacy platform data for some devices. We also do have the option of adding back the platform data if needed in case of trouble. Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-05-20bus: mc-bus: Add support for mapping shareable portalsRoy Pledge3-7/+55
Starting with v5 of NXP QBMan devices the hardware supports using regular cacheable/shareable memory as the backing store for the portals. This patch adds support for the new portal mode by switching to use the DPRC get object region v2 command which returns both a base address and offset for the portal memory. The new portal region is identified as shareable through the addition of a new flag. Signed-off-by: Roy Pledge <roy.pledge@nxp.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com>
2019-05-20bus: brcmstb_gisb: Remove print of base addressFlorian Fainelli1-2/+2
Since commit ad67b74d2469 ("printk: hash addresses printed with %p") pointers are being hashed when printed. Displaying the virtual memory at bootup time is not helpful, especially given we use a dev_info() which already displays the platform device's address. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2019-05-20Merge branch 'omap-for-v5.2/ti-sysc' into fixesTony Lindgren1-12/+11
2019-05-16Merge tag 'armsoc-drivers' of ↵Linus Torvalds1-20/+46
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: Among the larger pieces: - Power management improvements for TI am335x and am437x (RTC suspend/wake) - Misc new additions for Amlogic (socinfo updates) - ZynqMP FPGA manager - Nvidia improvements for reset/powergate handling - PMIC wrapper for Mediatek MT8516 - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits) soc: aspeed: fix Kconfig soc: add aspeed folder and misc drivers spi: zynqmp: Fix build break soc: imx: Add generic i.MX8 SoC driver MAINTAINERS: Update email for Qualcomm SoC maintainer memory: tegra: Fix a typos for "fdcdwr2" mc client Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+" memory: tegra: Replace readl-writel with mc_readl-mc_writel memory: tegra: Fix integer overflow on tick value calculation memory: tegra: Fix missed registers values latching ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30 optee: allow to work without static shared memory soc/tegra: pmc: Move powergate initialisation to probe soc/tegra: pmc: Remove reset sysfs entries on error soc/tegra: pmc: Fix reset sources and levels soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask fpga manager: Adding FPGA Manager support for Xilinx zynqmp dt-bindings: fpga: Add bindings for ZynqMP fpga driver firmware: xilinx: Add fpga API's ...
2019-05-02bus: ti-sysc: Handle devices with no control registersTony Lindgren1-12/+11
Some interconnect target modules have no module control registers at all, such as d_can on am335x and am437x. The d_can register offset at 0 is CTL register with 0x401 as the default value. I guess I mistook the 0x401 value for a revision register as the value happens to look similar to what the revision registers typically have for other modules. To handle modules with no control registers, we need to improve the ti-sysc driver a bit to bail out with errors on no control registers, and then we can remove the bogus revision registers for d_can. Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-09bus: ti-sysc: Add generic enable/disable functionsRoger Quadros1-0/+129
For non legacy cases, add generic sysc_enable_module() and sysc_disable_module() functions. Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-06bus: ti-sysc: Detect DMIC for debuggingTony Lindgren1-0/+1
Detect DMIC to see what we have connected if config DEBUG is enabled. Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-06bus: ti-sysc: Handle swsup idle mode quirksTony Lindgren1-3/+3
In preparation of dropping interconnect target module platform data in favor of devicetree based data, we must pass swsup idle quirks to the platform data functions. For now, let's only tag the UART modules with the SWSUP_SIDLE_ACT quirk. The other modules will get tagged with swsup quirks as we drop the platform data and test the changes. Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-03bus: ti-sysc: Add quirk handling for external optional functional clockTony Lindgren1-1/+90
We cannot access mcpdm registers at all unless there is an optional pdmclk configured. As this is currently only needed for mcpdm, let's check for mcpdm in sysc_get_clocks(). If it turns out to be needed for other modules too, we can add more flags to the quirks table for this. Signed-off-by: Tony Lindgren <tony@atomide.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 17:43:57 +0300