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| * | ARM: OMAP2+: Fix suspcious RCU usage splats for omap_enter_idle_coupledTony Lindgren2021-01-151-8/+8
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We get suspcious RCU usage splats with cpuidle in several places in omap_enter_idle_coupled() with the kernel debug options enabled: RCU used illegally from extended quiescent state! ... (_raw_spin_lock_irqsave) (omap_enter_idle_coupled+0x17c/0x2d8) (omap_enter_idle_coupled) (cpuidle_enter_state) (cpuidle_enter_state_coupled) (cpuidle_enter) Let's use RCU_NONIDLE to suppress these splats. Things got changed around with commit 1098582a0f6c ("sched,idle,rcu: Push rcu_idle deeper into the idle path") that started triggering these warnings. For the tick_broadcast related calls, ideally we'd just switch over to using CPUIDLE_FLAG_TIMER_STOP for omap_enter_idle_coupled() to have the generic cpuidle code handle the tick_broadcast related calls for us and then just drop the tick_broadcast calls here. But we're currently missing the call in the common cpuidle code for tick_broadcast_enable() that CPU1 hotplug needs as described in earlier commit 50d6b3cf9403 ("ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug"). Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * Merge tag 'arm-soc-omap-genpd-5.11' of ↵Linus Torvalds2020-12-1611-1093/+21
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC OMAP GenPD updates from Arnd Bergmann: "These are additional updates for the power domain support on OMAP, moving to an implementation based on device tree information instead of SoC specific code. This is the latest step in the ongoing process for moving code out of arch/arm/mach-omap2. I kept this separate from the other driver changes since it touches code in multiple areas" * tag 'arm-soc-omap-genpd-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (51 commits) ARM: OMAP2+: Fix am4 only build after genpd changes ARM: dts: Configure power domain for omap5 dss ARM: dts: omap5: add remaining PRM instances soc: ti: omap-prm: omap5: add genpd support for remaining PRM instances ARM: OMAP2+: Drop legacy platform data for dra7 gpmc ARM: dts: Configure interconnect target module for dra7 iva ARM: dts: dra7: add remaining PRM instances soc: ti: omap-prm: dra7: add genpd support for remaining PRM instances clk: ti: dra7: Drop idlest polling from IVA clkctrl clocks ARM: OMAP2+: Drop legacy platform data for omap4 gpmc ARM: OMAP2+: Drop legacy platform data for omap4 iva ARM: dts: Configure power domain for omap4 dsp ARM: dts: Configure power domain for omap4 dss ARM: dts: omap4: add remaining PRM instances soc: ti: omap-prm: omap4: add genpd support for remaining PRM instances clk: ti: omap4: Drop idlest polling from IVA clkctrl clocks ARM: OMAP2+: Drop legacy remaining legacy platform data for am4 ARM: dts: Use simple-pm-bus for genpd for am4 l3 ARM: dts: Move am4 l3 noc to a separate node ARM: dts: Use simple-pm-bus for genpd for am4 l4_per ...
| | * ARM: OMAP2+: Fix am4 only build after genpd changesTony Lindgren2020-11-272-13/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit df6c2ec872a6 ("ARM: OMAP2+: Drop legacy remaining legacy platform data for am4") we moved am4 to boot with simple-pm-bus using genpd and devicetree based data. But I forgot to test am4 only build that still has few references to the old platform data left, and cause undefined reference errors with omap_hwmod_set_postsetup_state and omap_hwmod_for_each. We can just drop the related calls for am4 now, and also drop the references to unused struct wkup_m3_platform_data. Reported-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for dra7 gpmcTony Lindgren2020-11-191-49/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Cc: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for omap4 gpmcTony Lindgren2020-11-191-45/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Cc: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for omap4 ivaTony Lindgren2020-11-191-69/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy remaining legacy platform data for am4Tony Lindgren2020-11-167-382/+1
| | | | | | | | | | | | | | | | | | | | | We can now drop the remaining legacy platform data as we are probing devices with device tree data. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am4 mpussTony Lindgren2020-11-164-42/+0
| | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am4 ocmcramTony Lindgren2020-11-163-27/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Note that we need to use "ti,no-idle" here. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am4 emifTony Lindgren2020-11-162-36/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am4 wkup_m3Tony Lindgren2020-11-162-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am4 control moduleTony Lindgren2020-11-162-29/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. To drop the legacy platform data for am3 control module, we need to configure the missing functional clock and tag the module to not idle as platform data also had it configured with HWMOD_INIT_NO_IDLE. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Build hwmod related code as neededTony Lindgren2020-11-163-12/+22
| | | | | | | | | | | | | | | | | | | | | | | | If we have only am3 selected, there's no need to build the hwmod related code as we are probing devices with device tree data. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy remaining legacy platform data for am3Tony Lindgren2020-11-163-164/+0
| | | | | | | | | | | | | | | | | | | | | We can now drop the remaining legacy platform data as we are probing devices with device tree data. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 mpussTony Lindgren2020-11-162-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 instrTony Lindgren2020-11-162-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 ocmcramTony Lindgren2020-11-162-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Note that we need to use "ti,no-idle" here. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 emifTony Lindgren2020-11-161-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 debugssTony Lindgren2020-11-161-37/+0
| | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 and am4 gpmcTony Lindgren2020-11-165-45/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Cc: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 wkup_m3Tony Lindgren2020-11-161-43/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Cc: Dave Gerlach <d-gerlach@ti.com> Cc: Suman Anna <s-anna@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Drop legacy platform data for am3 control moduleTony Lindgren2020-11-161-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. To drop the legacy platform data for am3 control module, we need to configure the missing functional clock and tag the module to not idle as platform data also had it configured with HWMOD_INIT_NO_IDLE. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | Merge tag 'arm-soc-drivers-5.11' of ↵Linus Torvalds2020-12-162-0/+17
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC driver updates from Arnd Bergmann: "There are a couple of subsystems maintained by other people that merge their drivers through the SoC tree, those changes include: - The SCMI firmware framework gains support for sensor notifications and for controlling voltage domains. - A large update for the Tegra memory controller driver, integrating it better with the interconnect framework - The memory controller subsystem gains support for Mediatek MT8192 - The reset controller framework gains support for sharing pulsed resets For Soc specific drivers in drivers/soc, the main changes are - The Allwinner/sunxi MBUS gets a rework for the way it handles dma_map_ops and offsets between physical and dma address spaces. - An errata fix plus some cleanups for Freescale Layerscape SoCs - A cleanup for renesas drivers regarding MMIO accesses. - New SoC specific drivers for Mediatek MT8192 and MT8183 power domains - New SoC specific drivers for Aspeed AST2600 LPC bus control and SoC identification. - Core Power Domain support for Qualcomm MSM8916, MSM8939, SDM660 and SDX55. - A rework of the TI AM33xx 'genpd' power domain support to use information from DT instead of platform data - Support for TI AM64x SoCs - Allow building some Amlogic drivers as modules instead of built-in Finally, there are numerous cleanups and smaller bug fixes for Mediatek, Tegra, Samsung, Qualcomm, TI OMAP, Amlogic, Rockchips, Renesas, and Xilinx SoCs" * tag 'arm-soc-drivers-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (222 commits) soc: mediatek: mmsys: Specify HAS_IOMEM dependency for MTK_MMSYS firmware: xilinx: Properly align function parameter firmware: xilinx: Add a blank line after function declaration firmware: xilinx: Remove additional newline firmware: xilinx: Fix kernel-doc warnings firmware: xlnx-zynqmp: fix compilation warning soc: xilinx: vcu: add missing register NUM_CORE soc: xilinx: vcu: use vcu-settings syscon registers dt-bindings: soc: xlnx: extract xlnx, vcu-settings to separate binding soc: xilinx: vcu: drop useless success message clk: samsung: mark PM functions as __maybe_unused soc: samsung: exynos-chipid: initialize later - with arch_initcall soc: samsung: exynos-chipid: order list of SoCs by name memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe() memory: ti-emif-sram: only build for ARMv7 memory: tegra30: Support interconnect framework memory: tegra20: Support hardware versioning and clean up OPP table initialization dt-bindings: memory: tegra20-emc: Document opp-supported-hw property soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe() reset-controller: ti: force the write operation when assert or deassert ...
| | * ARM: OMAP2+: Probe PRCM first to probe l4_wkup with simple-pm-busTony Lindgren2020-11-161-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | In preparation for probing the interconnects with simple-pm-bus to make use of genpd, we need to probe the always-on PRCM first for the clocks needed by l4_wkup instance. Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP2+: Check for inited flagTony Lindgren2020-11-161-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | If we have no hwmods configured and omap_hwmod_init() is not called, we don't want to call omap_hwmod_setup_all() as it will fail with checks for configured MPU at least. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | Merge tag 'arm-soc-5.11' of ↵Linus Torvalds2020-12-163-11/+11
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC updates from Arnd Bergmann: "These are updates for SoC specific code, mostly in the 32-bit architecture: - A rework for handling MMIO accesses in Renesas SoCs in a more portable way - Updates to SoC version detection in NXP i.MX SoCs. - Smaller bug fixes for OMAP, Samsung, Marvell, Amlogic" * tag 'arm-soc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits) arm64: Kconfig: meson: drop pinctrl ARM: mxs: Add serial number support for i.MX23, i.MX28 SoCs MAINTAINERS: switch mvebu tree to kernel.org MAINTAINERS: Add an entry for MikroTik CRS3xx 98DX3236 boards ARM: shmobile: Stop using __raw_*() I/O accessors ARM: shmobile: sh73a0: Remove obsolete static mapping ARM: shmobile: sh73a0: Use ioremap() to map SMP registers ARM: shmobile: sh73a0: Use ioremap() to map L2C registers ARM: shmobile: r8a7779: Remove obsolete static mappings ARM: shmobile: r8a7779: Use ioremap() to map SMP registers ARM: shmobile: r8a7779: Use ioremap() to map INTC2 registers ARM: shmobile: r8a7778: Introduce HPBREG_BASE ARM: OMAP1: clock: Use IS_ERR_OR_NULL() to clean code ARM: OMAP2+: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare ARM: OMAP2+: Remove redundant assignment to variable ret ARM: OMAP2+: Fix kfree NULL pointer in omap2xxx_clkt_vps_init ARM: OMAP2+: Fix memleak in omap2xxx_clkt_vps_init ARM: exynos: extend cpuidle support to P4 Note boards ARM: imx: mach-imx6q: correctly identify i.MX6QP SoCs ARM: imx: imx7ulp: Add a comment explaining the B2 silicon version ...
| | * | ARM: OMAP2+: Remove redundant null check before ↵Xu Wang2020-11-191-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clk_prepare_enable/clk_disable_unprepare Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | ARM: OMAP2+: Remove redundant assignment to variable retJing Xiangfeng2020-11-191-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The variable ret has been initialized with '-ENOMEM'. The assignment in the if branch is redundant. So remove it. Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | ARM: OMAP2+: Fix kfree NULL pointer in omap2xxx_clkt_vps_initYouling Tang2020-11-191-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The returns pointer is NULL when kzalloc fails to apply for space, so fix kfree NULL pointer. Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | ARM: OMAP2+: Fix memleak in omap2xxx_clkt_vps_initYouling Tang2020-11-191-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the clk_register fails, we should free hw before function returns to prevent memleak. Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODELMike Rapoport2020-12-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ARM is the only architecture that defines CONFIG_ARCH_HAS_HOLES_MEMORYMODEL which in turn enables memmap_valid_within() function that is intended to verify existence of struct page associated with a pfn when there are holes in the memory map. However, the ARCH_HAS_HOLES_MEMORYMODEL also enables HAVE_ARCH_PFN_VALID and arch-specific pfn_valid() implementation that also deals with the holes in the memory map. The only two users of memmap_valid_within() call this function after a call to pfn_valid() so the memmap_valid_within() check becomes redundant. Remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL and memmap_valid_within() and rely entirely on ARM's implementation of pfn_valid() that is now enabled unconditionally. Link: https://lkml.kernel.org/r/20201101170454.9567-9-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Meelis Roos <mroos@linux.ee> Cc: Michael Schmitz <schmitzmic@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ARM: omap2: pmic-cpcap: fix maximum voltage to be consistent with defaults ↵Carl Philipp Klemm2020-12-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | on xt875 xt875 comes up with a iva voltage of 1375000 and android runs at this too. fix maximum voltage to be consistent with this. Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | | ARM: OMAP2+: omap_device: fix idling of devices during probeAndreas Kemnade2020-12-071-3/+5
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On the GTA04A5 od->_driver_status was not set to BUS_NOTIFY_BIND_DRIVER during probe of the second mmc used for wifi. Therefore omap_device_late_idle idled the device during probing causing oopses when accessing the registers. It was not set because od->_state was set to OMAP_DEVICE_STATE_IDLE in the notifier callback. Therefore set od->_driver_status also in that case. This came apparent after commit 21b2cec61c04 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4") causing this oops: omap_hsmmc 480b4000.mmc: omap_device_late_idle: enabled but no driver. Idling 8<--- cut here --- Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0b402c ... (omap_hsmmc_set_bus_width) from [<c07996bc>] (omap_hsmmc_set_ios+0x11c/0x258) (omap_hsmmc_set_ios) from [<c077b2b0>] (mmc_power_up.part.8+0x3c/0xd0) (mmc_power_up.part.8) from [<c077c14c>] (mmc_start_host+0x88/0x9c) (mmc_start_host) from [<c077d284>] (mmc_add_host+0x58/0x84) (mmc_add_host) from [<c0799190>] (omap_hsmmc_probe+0x5fc/0x8c0) (omap_hsmmc_probe) from [<c0666728>] (platform_drv_probe+0x48/0x98) (platform_drv_probe) from [<c066457c>] (really_probe+0x1dc/0x3b4) Fixes: 04abaf07f6d5 ("ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer") Fixes: 21b2cec61c04 ("mmc: Set PROBE_PREFER_ASYNCHRONOUS for drivers that existed in v4.4") Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Andreas Kemnade <andreas@kemnade.info> [tony@atomide.com: left out extra parens, trimmed description stack trace] Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | Merge tag 'ti-sysc-fixes' into fixesTony Lindgren2020-11-161-1/+2
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| * | ARM: OMAP2+: Fix missing select PM_GENERIC_DOMAINS_OFTony Lindgren2020-10-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | We should select also PM_GENERIC_DOMAINS_OF in addition to PM_GENERIC_DOMAINS to have device tree based PM domain providers enabled. Fixes: 58cbff023bfa ("soc: ti: omap-prm: Add basic power domain support") Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2+: Fix location for select PM_GENERIC_DOMAINSTony Lindgren2020-10-261-1/+1
| |/ | | | | | | | | | | | | | | I accidentally misplaced select PM_GENERIC_DOMAINS, it should be selected for all the SoCs instead. Fixes: 58cbff023bfa ("soc: ti: omap-prm: Add basic power domain support") Signed-off-by: Tony Lindgren <tony@atomide.com>
* / ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled()Tony Lindgren2020-10-271-3/+5
|/ | | | | | | | | | | | | | | | | | | | | | Based on more testing, commit 8ca5ee624b4c ("ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails") is a poor fix for handling cpu_cluster_pm_enter() returned errors. We should not override the cpuidle states with a hardcoded PWRDM_POWER_ON value. Instead, we should use a configured idle state that does not cause the context to be lost. Otherwise we end up configuring a potentially improper state for the MPUSS. We also want to update the returned state index for the selected state. Let's just select the highest power idle state C1 to ensure no context loss is allowed on cpu_cluster_pm_enter() errors. With these changes we can now unconditionally call omap4_enter_lowpower() for WFI like we did earlier before commit 55be2f50336f ("ARM: OMAP2+: Handle errors for cpu_pm"). And we can return the selected state index. Fixes: 8f04aea048d5 ("ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails") Fixes: 55be2f50336f ("ARM: OMAP2+: Handle errors for cpu_pm") Signed-off-by: Tony Lindgren <tony@atomide.com>
* Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds2020-10-2453-299/+71
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC platform updates from Olof Johansson: "SoC changes, a substantial part of this is cleanup of some of the older platforms that used to have a bunch of board files. In particular: - Remove non-DT i.MX platforms that haven't seen activity in years, it's time to remove them. - A bunch of cleanup and removal of platform data for TI/OMAP platforms, moving over to genpd for power/reset control (yay!) - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them closer to multiplatform support (not quite there yet, but getting close). There are a few other changes too, smaller fixlets, etc. For new platform support, the primary ones are: - New SoC: Hisilicon SD5203, ARM926EJ-S platform. - Cpufreq support for i.MX7ULP" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits) ARM: mstar: Select MStar intc ARM: stm32: Replace HTTP links with HTTPS ones ARM: debug: add UART early console support for SD5203 ARM: hisi: add support for SD5203 SoC ARM: omap3: enable off mode automatically clk: imx: imx35: Remove mx35_clocks_init() clk: imx: imx31: Remove mx31_clocks_init() clk: imx: imx27: Remove mx27_clocks_init() ARM: imx: Remove unused definitions ARM: imx35: Retrieve the IIM base address from devicetree ARM: imx3: Retrieve the AVIC base address from devicetree ARM: imx3: Retrieve the CCM base address from devicetree ARM: imx31: Retrieve the IIM base address from devicetree ARM: imx27: Retrieve the CCM base address from devicetree ARM: imx27: Retrieve the SYSCTRL base address from devicetree ARM: s3c64xx: bring back notes from removed debug-macro.S ARM: s3c24xx: fix Wunused-variable warning on !MMU ARM: samsung: fix PM debug build with DEBUG_LL but !MMU MAINTAINERS: mark linux-samsung-soc list non-moderated ARM: imx: Remove remnant board file support pieces ...
| * Merge tag 'omap-for-v5.10/soc-part2-v2-signed' of ↵Olof Johansson2020-10-034-7/+27
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc One more SoC change for omaps for v5.10 merge window Remove debugfs dependency for enabling off mode during idle for omap3 by enabling it automatically based on the PMIC configuration. * tag 'omap-for-v5.10/soc-part2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: omap3: enable off mode automatically Link: https://lore.kernel.org/r/pull-1601445968-476435@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>
| | * ARM: omap3: enable off mode automaticallyAndreas Kemnade2020-09-244-7/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabling off mode was only reachable deeply hidden in the debugfs. As powersaving is an important feature, move the option out of its shady place. The debugfs file can still be used to override the default. Use the presence of a device compatible to ti,twl4030-idle or ti,twl4030-idle-osc-off as an indicator that the board is wired correctly for off mode. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> [tony@atomide.com: updated to fix a checkpatch warning] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | Merge tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of ↵Olof Johansson2020-09-1310-249/+1
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc Add initial genpd support for omaps to drop more platform data We now drop legacy platform data for RTC on am3, am4 and dra7. And we add initial genpd support for PRM (Power and Reset Manager) and use it to drop legacy platform data for am3 sgx and omap4/5 l4_abe interconnect instance. * tag 'omap-for-v5.10/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Drop legacy platform data for dra7 rtcss ARM: OMAP2+: Drop legacy platform data for am3 and am4 rtc soc: ti: pm33xx: Simplify RTC usage to prepare to drop platform data ARM: dts: Configure omap4 and 5 l4_abe for genpd and drop platform data ARM: dts: Configure am3 and am4 sgx for genpd and drop platform data soc: ti: omap-prm: Configure omap4 and 5 l4_abe power domain soc: ti: omap-prm: Configure sgx power domain for am3 and am4 soc: ti: omap-prm: Add basic power domain support dt-bindings: omap: Update PRM binding for genpd Link: https://lore.kernel.org/r/pull-1599132307-761202@atomide.com-2 Signed-off-by: Olof Johansson <olof@lixom.net>
| | * \ Merge branch 'omap-for-v5.10/prm-genpd' into omap-for-v5.10/ti-sysc-drop-pdataTony Lindgren2020-09-037-124/+1
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| | | * | ARM: dts: Configure omap4 and 5 l4_abe for genpd and drop platform dataTony Lindgren2020-08-182-64/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can power off l4_abe domain when not in use when we configure it for genpd. And with that change, we can now also drop the old unused legacy platform data. Note that we also need to now use "simple-pm-bus" instead of "simple-bus" for PM runtime to get enabled for the bus. Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * | ARM: dts: Configure am3 and am4 sgx for genpd and drop platform dataTony Lindgren2020-08-184-60/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can power off the SGX power domain when not in use when we configure it for genpd. And with that change, we can now also drop the old unused legacy platform data. Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | | * | soc: ti: omap-prm: Add basic power domain supportTony Lindgren2020-08-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PRM controller has currently only support for resets while the power domains are still handled in the platform code. Let's add basic power domain support to enable and disable a PRM controlled power domain if configured in the devicetree. This can be used for various hardware accelerators, and interconnect instances. Further support can be added later on as needed for runtime configuration based on domain-idle-states. Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | ARM: OMAP2+: Drop legacy platform data for dra7 rtcssTony Lindgren2020-08-241-44/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Cc: Keerthy <j-keerthy@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | ARM: OMAP2+: Drop legacy platform data for am3 and am4 rtcTony Lindgren2020-08-245-56/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can now probe devices with ti-sysc interconnect driver and dts data. Let's drop the related platform data and custom ti,hwmods dts property. As we're just dropping data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Note that we also must tag rtc as disabled on am43x-epos-evm as it's not accessible according to commit 4321dc8dff35 ("ARM: AM43XX: hwmod: Add rtc hwmod"). And we must keep RTC enabled for rtcwake to work now that we've removed the custom platfor code for re-enabling the RTC on suspend. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | soc: ti: pm33xx: Simplify RTC usage to prepare to drop platform dataTony Lindgren2020-08-241-25/+0
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We must re-enable the RTC module clock enabled in RTC+DDR suspend, and pm33xx has been using platform data callbacks for that. Looks like for retention suspend the RTC module clock must not be re-enabled. To remove the legacy platform data callbacks, and eventually be able to drop the RTC legacy platform data, let's manage the RTC module clock and register range directly in pm33xx. Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | Merge tag 'omap-for-v5.10/soc-signed' of ↵Olof Johansson2020-09-1343-43/+43
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc SoC changes for omaps for v5.10 Few changes to replace HTTP links with HTTPS, and a change to delete a duplicate word for omap1 mux.h comments. * tag 'omap-for-v5.10/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: arm: mach-omap1: mux.h: delete duplicate word ARM: OMAP2+: Replace HTTP links with HTTPS ones ARM: OMAP2+: pm33xx-core: Replace HTTP links with HTTPS ones ARM: OMAP2+: hwmod: Replace HTTP links with HTTPS ones ARM: OMAP2+: Replace HTTP links with HTTPS ones ARM: OMAP2+: PRM: Replace HTTP links with HTTPS ones Link: https://lore.kernel.org/r/pull-1599132307-761202@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>
| | * | ARM: OMAP2+: Replace HTTP links with HTTPS onesAlexander A. Klimov2020-08-1931-31/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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> Signed-off-by: Tony Lindgren <tony@atomide.com>