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2019-02-12ARM: OMAP2+: hwmod: Fix some section annotationsNathan Chancellor
[ Upstream commit c10b26abeb53cabc1e6271a167d3f3d396ce0218 ] When building the kernel with Clang, the following section mismatch warnings appears: WARNING: vmlinux.o(.text+0x2d398): Section mismatch in reference from the function _setup() to the function .init.text:_setup_iclk_autoidle() The function _setup() references the function __init _setup_iclk_autoidle(). This is often because _setup lacks a __init annotation or the annotation of _setup_iclk_autoidle is wrong. WARNING: vmlinux.o(.text+0x2d3a0): Section mismatch in reference from the function _setup() to the function .init.text:_setup_reset() The function _setup() references the function __init _setup_reset(). This is often because _setup lacks a __init annotation or the annotation of _setup_reset is wrong. WARNING: vmlinux.o(.text+0x2d408): Section mismatch in reference from the function _setup() to the function .init.text:_setup_postsetup() The function _setup() references the function __init _setup_postsetup(). This is often because _setup lacks a __init annotation or the annotation of _setup_postsetup is wrong. _setup is used in omap_hwmod_allocate_module, which isn't marked __init and looks like it shouldn't be, meaning to fix these warnings, those functions must be moved out of the init section, which this patch does. Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2017-08-16ARM: Convert to using %pOF instead of full_nameRob Herring
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Cc: Russell King <linux@armlinux.org.uk> Cc: Kukjin Kim <kgene@kernel.org> Cc: Javier Martinez Canillas <javier@osg.samsung.com> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Tony Lindgren <tony@atomide.com> Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-06-12Merge branch 'omap-for-v4.13/clkctrl' into omap-for-v4.13/soc-v4Tony Lindgren
2017-06-08ARM: OMAP2+: Remove unused legacy code for interconnectsTony Lindgren
We are now booting all mach-omap2 in device tree only mode. Any code that is only called in legacy boot mode where of_have_populated_dt() is not set is safe to remove now. Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-06-06ARM: OMAP2+: hwmod: populate clkctrl clocks for hwmods if availableTero Kristo
If clkctrl clocks are available on a device, populate these automatically to replace hwmod main_clk info. First, the patch parses all "ti,clkctrl" compatible nodes and maps these against existing clockdomain data. Once done, individual hwmod init routines can search for a clkctrl clock handle based on the clockdomain info and the created mapping. This patch also drops the obsolete "_mod_ck" search as the implementation required for this was not accepted usptream. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-23ARM: OMAP2+ hwmod: Allow modules to disable HW_AUTORoger Quadros
Introduce HWMOD_CLKDM_NOAUTO flag that allows the hwmod's clockdomain to be prevented from HW_AUTO while the hwmod is active. This is needed to workaround some modules which don't function correctly with HW_AUTO. e.g. DCAN on DRA7. Signed-off-by: Roger Quadros <rogerq@ti.com> [nsekhar@ti.com: rebased to v4.9 kernel] Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14ARM: OMAP2+: Remove unused CLOCKACT_TEST_ICLKTony Lindgren
This is not used so let's remove it. Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14ARM: OMAP2+: Use list_for_each_entry for hwmod slave_portsTony Lindgren
We are just iterating over the slave_ports lists, so we can use list_for_each_entry() no problem. Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-14ARM: OMAP2+: Remove mostly unused hwmod linkspaceTony Lindgren
We want to be able to dynamically allocate struct omap_hwmod_ocp_if and struct omap_hwmod at device driver probe time based on .dts data. Current setup with the linkspace using memblock_virt_alloc() makes this tricky, so let's get rid of struct linkspace and directly set up struct omap_hwmod_ocp_if as the master and slave lists. As we are currently not using the master_ports either, let's remove it too. And let's add the struct omap_hwmod_ocp_if node directly to the slave_ports list. Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-01-29Merge tag 'omap-for-v4.11/soc-signed' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc SoC changes for omaps for v4.11 merge window. This adds support for keeping the interconnect target module active for uart if earlycon is specified. And we're adding Aaro Koskinen as a co-maintainer for omap1 to make sure things stay working for omap1. The other changes are mostly clean-up of old legacy code: - Remove unused omap_display_init() - Make omapdss_find_dss_of_node() function static - Add support for earlycon - Tidy up omap1 usb logging output with pr_cont - Make omap_otg_init() static - Delete redundant CPU class checks for omap1 - Remove unused mpurate cmdline option that has not done anything for past 1.5 years at least * tag 'omap-for-v4.11/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP: clock: Remove unused mpurate cmdline option ARM: OMAP2+: omap_hwmod: Add support for earlycon MAINTAINERS: Add Aaro Koskinen as TI omap1 SoC co-maintainer ARM: OMAP1: USB: delete redundant CPU class checks ARM: OMAP1: USB: make omap_otg_init() static ARM: OMAP1: USB: tidy up logging output ARM: OMAP2+: Make the omapdss_find_dss_of_node() function static ARM: OMAP2+: Remove unused omap_display_init() function Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-20ARM: OMAP2+: omap_hwmod: Add support for earlyconLokesh Vutla
Hwmod core tries to reset and idles each IP that is registered with hwmod. In case of earlycon, that specific uart IP cannot be reset or keep it in idle state else earlycon hangs once hwmod resets that uart IP. So add support to not reset uart that is being used as earlycon only if CONFIG_SERIAL_EARLYCON is enabled. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-12-27ARM: omap2+: fixing wrong strcat for Non-NULL terminated stringManinder Singh
Issue caught with static analysis tool: "Dangerous usage of 'name' (strncpy doesn't always 0-terminate it)" Use strlcpy _includes_ the NUL terminator, and strlcat() which ensures that it won't overflow the buffer. Reported-by: Maninder Singh <maninder1.s@samsung.com> Signed-off-by: Vaneet Narang <v.narang@samsung.com> CC: Russell King <linux@armlinux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-10ARM: OMAP2+: Remove legacy hwmod mux codeTony Lindgren
This is no longer needed when booted with device tree. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-22ARM: OMAP4+: Have _omap4_wait_target_* check for valid clkctrl_offsDave Gerlach
Previously the low-level CM call internal to the _omap4_wait_target_ready/disable calls was responsible for checking for a valid clkctrl_offs. Now we must also consider the value of the prcm.omap4.flags because if HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET is set in the flags then clkctrl_offs of 0 is valid. Let's add this check into the _omap4_wait_target_ready/disable where we have access to both the clkctrl_offs and the flags values and simply return 0 without calling the low level CM call at all, which would have returned 0 anyway if the clktrl_offs was zero. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04ARM: OMAP2+: clockdomain: add usecounting support to autoidle APIsTero Kristo
The previous implementation was racy in many locations, where the current status of the clockdomain was read out, some operations were executed, and the previous status info was used afterwards to decide next state for the clockdomain. Instead, fix the implementation of the allow_idle / deny_idle APIs to properly have usecounting support. This allows clean handling internally within the clockdomain core, and simplifies the usage also within hwmod. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-07-04ARM: OMAP2+: hwmod: fetch main_clk based on hwmod nameTero Kristo
With the transition to hwmod module clocks, all hwmods will have their main clocks named <hwmod_name>_mod_ck. Use this info to fetch main_clk, and use it if found. Also, if a main_clk is found based on the hwmod name, disable the direct PRCM modulemode access from hwmod. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-04-10ARM: OMAP2+: hwmod: fix _idle() hwmod state sanity check sequenceSuman Anna
The omap_hwmod _enable() function can return success without setting the hwmod state to _HWMOD_STATE_ENABLED for IPs with reset lines when all of the reset lines are asserted. The omap_hwmod _idle() function also performs a similar check, but after checking for the hwmod state first. This triggers the WARN when pm_runtime_get and pm_runtime_put are invoked on IPs with all reset lines asserted. Reverse the checks for hwmod state and reset lines status to fix this. Issue found during a unbind operation on a device with reset lines still asserted, example backtrace below ------------[ cut here ]------------ WARNING: CPU: 1 PID: 879 at arch/arm/mach-omap2/omap_hwmod.c:2207 _idle+0x1e4/0x240() omap_hwmod: mmu_dsp: idle state can only be entered from enabled state Modules linked in: CPU: 1 PID: 879 Comm: sh Not tainted 4.4.0-00008-ga989d951331a #3 Hardware name: Generic OMAP5 (Flattened Device Tree) [<c0018e60>] (unwind_backtrace) from [<c0014dc4>] (show_stack+0x10/0x14) [<c0014dc4>] (show_stack) from [<c037ac28>] (dump_stack+0x90/0xc0) [<c037ac28>] (dump_stack) from [<c003f420>] (warn_slowpath_common+0x78/0xb4) [<c003f420>] (warn_slowpath_common) from [<c003f48c>] (warn_slowpath_fmt+0x30/0x40) [<c003f48c>] (warn_slowpath_fmt) from [<c0028c20>] (_idle+0x1e4/0x240) [<c0028c20>] (_idle) from [<c0029080>] (omap_hwmod_idle+0x28/0x48) [<c0029080>] (omap_hwmod_idle) from [<c002a5a4>] (omap_device_idle+0x3c/0x90) [<c002a5a4>] (omap_device_idle) from [<c0427a90>] (__rpm_callback+0x2c/0x60) [<c0427a90>] (__rpm_callback) from [<c0427ae4>] (rpm_callback+0x20/0x80) [<c0427ae4>] (rpm_callback) from [<c0427f84>] (rpm_suspend+0x138/0x74c) [<c0427f84>] (rpm_suspend) from [<c0428b78>] (__pm_runtime_idle+0x78/0xa8) [<c0428b78>] (__pm_runtime_idle) from [<c041f514>] (__device_release_driver+0x64/0x100) [<c041f514>] (__device_release_driver) from [<c041f5d0>] (device_release_driver+0x20/0x2c) [<c041f5d0>] (device_release_driver) from [<c041d85c>] (unbind_store+0x78/0xf8) [<c041d85c>] (unbind_store) from [<c0206df8>] (kernfs_fop_write+0xc0/0x1c4) [<c0206df8>] (kernfs_fop_write) from [<c018a120>] (__vfs_write+0x20/0xdc) [<c018a120>] (__vfs_write) from [<c018a9cc>] (vfs_write+0x90/0x164) [<c018a9cc>] (vfs_write) from [<c018b1f0>] (SyS_write+0x44/0x9c) [<c018b1f0>] (SyS_write) from [<c0010420>] (ret_fast_syscall+0x0/0x1c) ---[ end trace a4182013c75a9f50 ]--- While at this, fix the sequence in _shutdown() as well, though there is no easy reproducible scenario. Fixes: 747834ab8347 ("ARM: OMAP2+: hwmod: revise hardreset behavior") Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-26ARM: OMAP2+: hwmod: Fix updating of sysconfig registerLokesh Vutla
Commit 127500ccb766f ("ARM: OMAP2+: Only write the sysconfig on idle when necessary") talks about verification of sysconfig cache value before updating it, only during idle path. But the patch is adding the verification in the enable path. So, adding the check in a proper place as per the commit description. Not keeping this check during enable path as there is a chance of losing context and it is safe to do on idle as the context of the register will never be lost while the device is active. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Cc: Jon Hunter <jonathanh@nvidia.com> Cc: <stable@vger.kernel.org> # 3.12+ Fixes: commit 127500ccb766 "ARM: OMAP2+: Only write the sysconfig on idle when necessary" [paul@pwsan.com: appears to have been caused by my own mismerge of the originally posted patch] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2016-03-07ARM: OMAP2+: hwmod: Introduce ti,no-idle dt propertyLokesh Vutla
Introduce a dt property, ti,no-idle, that prevents an IP to idle at any point. This is to handle Errata i877, which tells that GMAC clocks cannot be disabled. Acked-by: Roger Quadros <rogerq@ti.com> Tested-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Rob Herring <robh@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-12-22Merge tag 'omap-for-v4.5/soc-initcall' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc SoC changes for omaps for v4.5 merge window. The main change here is to change the omap initcall levels a bit to initialize things later to allow early device drivers at core_initcall level. This makes things easier for us as most clocks can be made into regular device drivers except for a few early clocks needed to initialize system timers. I wanted to have these changes sit in Linux next for a few weeks before sending out a pull request, and so far now issues have showed up. The other changes in this series are timer changes for making use of the new PWM driver, and timer changes to support more high security SoCs. Also few minor improvments for module autoidle settings for ti81xx spinbox and dra7 debug on uart4 in hwmod code. The rest is pretty much just removal of platform data for SoCs that are all device tree only nowadays. * tag 'omap-for-v4.5/soc-initcall' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Remove device creation for omap-pcm-audio ARM: OMAP1: Remove device creation for omap-pcm-audio ARM: OMAP2+: Change core_initcall levels to postcore_initcall ARM: DRA7: hwmod: Enable DEBUG_LL for UART4 ARM: OMAP: RX-51: fix a typo in log writing ARM: omap4: hwmod: Remove elm address space from hwmod data ARM: OMAP2+: timer: Remove secure timer for DRA7xx HS devices ARM: OMAP: dmtimer: check for fixed timers during config ARM: OMAP2+: Remove omap_mmu_dev_attr structure ARM: OMAP4: hwmod data: Remove legacy IOMMU attr and addrs ARM: OMAP3: hwmod data: Remove legacy IOMMU data ARM: OMAP2+: Remove legacy device instantiation of IOMMUs ARM: OMAP2+: Add hwmod spinbox support for dm816x ARM: OMAP: add DT support for ti,dm816-timer ARM: OMAP: dmtimer: Add clock source from DT Signed-off-by: Olof Johansson <olof@lixom.net>
2015-12-03ARM: OMAP2+: Change core_initcall levels to postcore_initcallTony Lindgren
We want to be able to probe a few selected device drivers before hwmod code populates the clocks in omap_hwmod_setup_all(). This allows us to convert most of the clock drivers into regular device drivers. We only need a few minimal clock drivers early for the system timers to select between the 32KiHz clock and the high frequency oscillator. With these changes, initializing the clock drivers can be just done at core_initcall time with something like: np = of_find_node_by_name(NULL, "plls"); if (np) of_platform_populate(np, NULL, NULL, NULL); And then these clocks will be available for the interconnect code to use. Having most of the clock drivers being regular device drivers allows us to use the nice things like devm_* functions and dev_err and dev_dbg. As an extra bonus, this also allows us to develop the clock drivers for new SoCs as loadable modules initially for cases where we can boot up the system based on the bootloader configured clocks. To do this, let's change the core_initcalls to postcore_initcall under mach-omap2. Cc: Felipe Balbi <balbi@ti.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-11-12ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDEDPeter Ujfalusi
Some module needs more than one functional clock in order to be accessible, like the McASPs found in DRA7xx family. This flag will indicate that the opt_clks need to be handled at the same time as the main_clk for the given hwmod, ensuring that all needed clocks are enabled before we try to access the module's address space. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-01Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "New or improved SoC support: - add support for Atmel's SAMA5D2 SoC - add support for Freescale i.MX6UL - improved support for TI's DM814x platform - misc fixes and improvements for RockChip platforms - Marvell MVEBU suspend/resume support A few driver changes that ideally would belong in the drivers branch are also here (acked by appropriate maintainers): - power key input driver for Freescale platforms (svns) - RTC driver updates for Freescale platforms (svns/mxc) - clk fixes for TI DM814/816X + a bunch of other changes for various platforms" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: rockchip: pm: Fix PTR_ERR() argument ARM: imx: mach-imx6ul: Fix allmodconfig build clk: ti: fix for definition movement ARM: uniphier: drop v7_invalidate_l1 call at secondary entry memory: kill off set_irq_flags usage rtc: snvs: select option REGMAP_MMIO ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE ARM: BCM: Enable ARM erratum 798181 for BRCMSTB ARM: OMAP2+: Fix power domain operations regression caused by 81xx ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend ARM: rockchip: set correct stabilization thresholds in suspend ARM: rockchip: rename osc_switch_to_32k variable ARM: imx6ul: add fec MAC refrence clock and phy fixup init ARM: imx6ul: add fec bits to GPR syscon definition rtc: mxc: add support of device tree dt-binding: document the binding for mxc rtc rtc: mxc: use a second rtc clock ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback soc: mediatek: Fix SCPSYS compilation ARM: at91/soc: add basic support for new sama5d2 SoC ...
2015-08-31Merge tag 'clk-for-linus-4.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Michael Turquette: "The clk framework changes for 4.3 are mostly updates to existing drivers and the addition of new clock drivers. Stephen Boyd has also done a lot of subsystem-wide driver clean-ups (thanks!). There are also fixes to the framework core and changes to better split clock provider drivers from clock consumer drivers" * tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits) clk: s5pv210: add missing call to samsung_clk_of_add_provider() clk: pistachio: correct critical clock list clk: pistachio: Fix PLL rate calculation in integer mode clk: pistachio: Fix override of clk-pll settings from boot loader clk: pistachio: Fix 32bit integer overflows clk: tegra: Fix some static checker problems clk: qcom: Fix MSM8916 prng clock enable bit clk: Add missing header for 'bool' definition to clk-conf.h drivers/clk: appropriate __init annotation for const data clk: rockchip: register pll mux before pll itself clk: add bindings for the Ux500 clocks clk/ARM: move Ux500 PRCC bases to the device tree clk: remove duplicated code with __clk_set_parent_after clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw) clk: Constify clk_hw argument to provider APIs clk: Hi6220: add stub clock driver dt-bindings: clk: Hi6220: Document stub clock driver dt-bindings: arm: Hi6220: add doc for SRAM controller clk: atlas7: fix pll missed divide NR in fraction mode clk: atlas7: fix bit field and its root clk for coresight_tpiu ...
2015-07-23Merge branch 'dm814x-soc' into omap-for-v4.3/socTony Lindgren
Update dm814x changes for sparse fixes to make data structures static. Conflicts: arch/arm/mach-omap2/omap_hwmod_81xx_data.c
2015-07-23ARM: OMAP2: Add minimal dm814x hwmod supportTony Lindgren
Let's add minimal set of dm814x hwmods to have a bootable system. Cc: Matthijs van Duin <matthijsvanduin@gmail.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-23ARM: OMAP2+: hwmod: Fix _wait_target_ready() for hwmods without syscRoger Quadros
For hwmods without sysc, _init_mpu_rt_base(oh) won't be called and so _find_mpu_rt_port(oh) will return NULL thus preventing ready state check on those modules after the module is enabled. This can potentially cause a bus access error if the module is accessed before the module is ready. Fix this by unconditionally calling _init_mpu_rt_base() during hwmod _init(). Do ioremap only if we need SYSC access. Eventhough _wait_target_ready() check doesn't really need MPU RT port but just the PRCM registers, we still mandate that the hwmod must have an MPU RT port if ready state check needs to be done. Else it would mean that the module is not accessible by MPU so there is no point in waiting for target to be ready. e.g. this fixes the below DCAN bus access error on AM437x-gp-evm. [ 16.672978] ------------[ cut here ]------------ [ 16.677885] WARNING: CPU: 0 PID: 1580 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x234/0x35c() [ 16.687946] 44000000.ocp:L3 Custom Error: MASTER M2 (64-bit) TARGET L4_PER_0 (Read): Data Access in User mode during Functional access [ 16.700654] Modules linked in: xhci_hcd btwilink ti_vpfe dwc3 videobuf2_core ov2659 bluetooth v4l2_common videodev ti_am335x_adc kfifo_buf industrialio c_can_platform videobuf2_dma_contig media snd_soc_tlv320aic3x pixcir_i2c_ts c_can dc [ 16.731144] CPU: 0 PID: 1580 Comm: rpc.statd Not tainted 3.14.26-02561-gf733aa036398 #180 [ 16.739747] Backtrace: [ 16.742336] [<c0011108>] (dump_backtrace) from [<c00112a4>] (show_stack+0x18/0x1c) [ 16.750285] r6:00000093 r5:00000009 r4:eab5b8a8 r3:00000000 [ 16.756252] [<c001128c>] (show_stack) from [<c05a4418>] (dump_stack+0x20/0x28) [ 16.763870] [<c05a43f8>] (dump_stack) from [<c0037120>] (warn_slowpath_common+0x6c/0x8c) [ 16.772408] [<c00370b4>] (warn_slowpath_common) from [<c00371e4>] (warn_slowpath_fmt+0x38/0x40) [ 16.781550] r8:c05d1f90 r7:c0730844 r6:c0730448 r5:80080003 r4:ed0cd210 [ 16.788626] [<c00371b0>] (warn_slowpath_fmt) from [<c027fa94>] (l3_interrupt_handler+0x234/0x35c) [ 16.797968] r3:ed0cd480 r2:c0730508 [ 16.801747] [<c027f860>] (l3_interrupt_handler) from [<c0063758>] (handle_irq_event_percpu+0x54/0x1bc) [ 16.811533] r10:ed005600 r9:c084855b r8:0000002a r7:00000000 r6:00000000 r5:0000002a [ 16.819780] r4:ed0e6d80 [ 16.822453] [<c0063704>] (handle_irq_event_percpu) from [<c00638f0>] (handle_irq_event+0x30/0x40) [ 16.831789] r10:eb2b6938 r9:eb2b6960 r8:bf011420 r7:fa240100 r6:00000000 r5:0000002a [ 16.840052] r4:ed005600 [ 16.842744] [<c00638c0>] (handle_irq_event) from [<c00661d8>] (handle_fasteoi_irq+0x74/0x128) [ 16.851702] r4:ed005600 r3:00000000 [ 16.855479] [<c0066164>] (handle_fasteoi_irq) from [<c0063068>] (generic_handle_irq+0x28/0x38) [ 16.864523] r4:0000002a r3:c0066164 [ 16.868294] [<c0063040>] (generic_handle_irq) from [<c000ef60>] (handle_IRQ+0x38/0x8c) [ 16.876612] r4:c081c640 r3:00000202 [ 16.880380] [<c000ef28>] (handle_IRQ) from [<c00084f0>] (gic_handle_irq+0x30/0x5c) [ 16.888328] r6:eab5ba38 r5:c0804460 r4:fa24010c r3:00000100 [ 16.894303] [<c00084c0>] (gic_handle_irq) from [<c05a8d80>] (__irq_svc+0x40/0x50) [ 16.902193] Exception stack(0xeab5ba38 to 0xeab5ba80) [ 16.907499] ba20: 00000000 00000006 [ 16.916108] ba40: fa1d0000 fa1d0008 ed3d3000 eab5bab4 ed3d3460 c0842af4 bf011420 eb2b6960 [ 16.924716] ba60: eb2b6938 eab5ba8c eab5ba90 eab5ba80 bf035220 bf07702c 600f0013 ffffffff [ 16.933317] r7:eab5ba6c r6:ffffffff r5:600f0013 r4:bf07702c [ 16.939317] [<bf077000>] (c_can_plat_read_reg_aligned_to_16bit [c_can_platform]) from [<bf035220>] (c_can_get_berr_counter+0x38/0x64 [c_can]) [ 16.952696] [<bf0351e8>] (c_can_get_berr_counter [c_can]) from [<bf010294>] (can_fill_info+0x124/0x15c [can_dev]) [ 16.963480] r5:ec8c9740 r4:ed3d3000 [ 16.967253] [<bf010170>] (can_fill_info [can_dev]) from [<c0502fa8>] (rtnl_fill_ifinfo+0x58c/0x8fc) [ 16.976749] r6:ec8c9740 r5:ed3d3000 r4:eb2b6780 [ 16.981613] [<c0502a1c>] (rtnl_fill_ifinfo) from [<c0503408>] (rtnl_dump_ifinfo+0xf0/0x1dc) [ 16.990401] r10:ec8c9740 r9:00000000 r8:00000000 r7:00000000 r6:ebd4d1b4 r5:ed3d3000 [ 16.998671] r4:00000000 [ 17.001342] [<c0503318>] (rtnl_dump_ifinfo) from [<c050e6e4>] (netlink_dump+0xa8/0x1e0) [ 17.009772] r10:00000000 r9:00000000 r8:c0503318 r7:ebf3e6c0 r6:ebd4d1b4 r5:ec8c9740 [ 17.018050] r4:ebd4d000 [ 17.020714] [<c050e63c>] (netlink_dump) from [<c050ec10>] (__netlink_dump_start+0x104/0x154) [ 17.029591] r6:eab5bd34 r5:ec8c9980 r4:ebd4d000 [ 17.034454] [<c050eb0c>] (__netlink_dump_start) from [<c0505604>] (rtnetlink_rcv_msg+0x110/0x1f4) [ 17.043778] r7:00000000 r6:ec8c9980 r5:00000f40 r4:ebf3e6c0 [ 17.049743] [<c05054f4>] (rtnetlink_rcv_msg) from [<c05108e8>] (netlink_rcv_skb+0xb4/0xc8) [ 17.058449] r8:eab5bdac r7:ec8c9980 r6:c05054f4 r5:ec8c9980 r4:ebf3e6c0 [ 17.065534] [<c0510834>] (netlink_rcv_skb) from [<c0504134>] (rtnetlink_rcv+0x24/0x2c) [ 17.073854] r6:ebd4d000 r5:00000014 r4:ec8c9980 r3:c0504110 [ 17.079846] [<c0504110>] (rtnetlink_rcv) from [<c05102ac>] (netlink_unicast+0x180/0x1ec) [ 17.088363] r4:ed0c6800 r3:c0504110 [ 17.092113] [<c051012c>] (netlink_unicast) from [<c0510670>] (netlink_sendmsg+0x2ac/0x380) [ 17.100813] r10:00000000 r8:00000008 r7:ec8c9980 r6:ebd4d000 r5:eab5be70 r4:eab5bee4 [ 17.109083] [<c05103c4>] (netlink_sendmsg) from [<c04dfdb4>] (sock_sendmsg+0x90/0xb0) [ 17.117305] r10:00000000 r9:eab5a000 r8:becdda3c r7:0000000c r6:ea978400 r5:eab5be70 [ 17.125563] r4:c05103c4 [ 17.128225] [<c04dfd24>] (sock_sendmsg) from [<c04e1c28>] (SyS_sendto+0xb8/0xdc) [ 17.136001] r6:becdda5c r5:00000014 r4:ecd37040 [ 17.140876] [<c04e1b70>] (SyS_sendto) from [<c000e680>] (ret_fast_syscall+0x0/0x30) [ 17.148923] r10:00000000 r8:c000e804 r7:00000122 r6:becdda5c r5:0000000c r4:becdda5c [ 17.157169] ---[ end trace 2b71e15b38f58bad ]--- Fixes: 6423d6df1440 ("ARM: OMAP2+: hwmod: check for module address space during init") Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: <stable@vger.kernel.org>
2015-07-20ARM: OMAP2+: Include clk.hStephen Boyd
These files use the consumer API, so include clk.h explicitly. Acked-by: Tero Kristo <t-kristo@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-15ARM: OMAP2+: hwmod: add support for lock and unlock hooksLokesh Vutla
Some IP blocks like RTC, needs an additional setting for writing to its registers. This is to prevent any spurious writes from changing the register values. This patch adds optional lock and unlock function pointers to the IP block's hwmod data. These unlock and lock function pointers are called by hwmod code before and after writing sysconfig registers. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> [paul@pwsan.com: fixed indentation level to conform with the rest of the structure members] Reviewed-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-06-01ARM: OMAP2+: Return correct error values from device and hwmodPali Rohár
Without this patch function pm_runtime_get_sync() returns 0 even when some omap subfunction fails. This patch properly propagate error codes from omap functions back to caller. This patch fix problem, when loading omap-aes driver in qemu cause kernel oops. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> [paul@pwsan.com: fix a checkpatch warning] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-05-08ARM: AM33xx+: hwmod: re-use omap4 implementations for reset functionalityTero Kristo
The reset code functionality is mostly a copy paste between OMAP4+ and AM33xx+. Re-use the omap4 code where possible, and just keep the special implementation for de-asserting the hardreset lines for AM33xx, as AM33xx+ devices have slightly different register layouts compared to OMAP4+. This patch also fixes the hardreset issues faced on AM43xx. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reported-by: Dave Gerlach <d-gerlach@ti.com> Reported-by: Suman Anna <s-anna@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-05-08ARM: OMAP4+: PRM: add support for passing status register/bit info to resetTero Kristo
AM43xx has slightly different reset register layout compared to OMAP4+, with varying status bit shifts and status register offsets. Current code assumes static offsets and identical status / reset control bit shifts, which is wrong. This patch adds PRM core support for passing the actual implementations from hwmod code. AM43xx mappings will be fixed in subsequent patch. Signed-off-by: Tero Kristo <t-kristo@ti.com> Reported-by: Dave Gerlach <d-gerlach@ti.com> Reported-by: Suman Anna <s-anna@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-03-01ARM: OMAP2+: hwmod: fix deassert hardreset clkdm usecountingTero Kristo
Deasserting hardreset increases the usecount for the hwmod parent clockdomain always, however usecount is only decreased at end in certain error cases. This causes software supervised clockdomains to remain always on, preventing idle. Fixed by always releasing the hwmods clockdomain parent when exiting the function. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Carlos Hernandez <ceh@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-02-26ARM: omap2+: omap_hwmod: Set unique lock_class_key per hwmodPeter Ujfalusi
Add struct lock_class_key to omap_hwmod struct and use it to set unique lockdep class per hwmod. This will ensure that lockdep will know that each omap_hwmod->_lock should be treated as separate class and will not give false warning about deadlock or other issues due to nested use of hwmods. DRA7x's ATL hwmod is one example for this since McASP can select ATL clock as functional clock, which will trigger nested oh->_lock usage. This will trigger false warning from lockdep validator as it is dealing with classes and for it all hwmod clocks are the same class. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-02-17Merge tag 'soc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "New and updated SoC support. Also included are some cleanups where the platform maintainers hadn't separated cleanups from new developent in separate branches. Some of the larger things worth pointing out: - A large set of changes from Alexandre Belloni and Nicolas Ferre preparing at91 platforms for multiplatform and cleaning up quite a bit in the process. - Removal of CSR's "Marco" SoC platform that never made it out to the market. We love seeing these since it means the vendor published support before product was out, which is exactly what we want! New platforms this release are: - Conexant Digicolor (CX92755 SoC) - Hisilicon HiP01 SoC - CSR/sirf Atlas7 SoC - ST STiH418 SoC - Common code changes for Nvidia Tegra132 (64-bit SoC) We're seeing more and more platforms having a harder time labelling changes as cleanups vs new development -- which is a good sign that we've come quite far on the cleanup effort. So over time we might start combining the cleanup and new-development branches more" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits) ARM: at91/trivial: unify functions and machine names ARM: at91: remove at91_dt_initialize and machine init_early() ARM: at91: change board files into SoC files ARM: at91: remove at91_boot_soc ARM: at91: move alternative initial mapping to board-dt-sama5.c ARM: at91: merge all SOC_AT91SAM9xxx ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init() ARM: digicolor: select syscon and timer ARM: zynq: Simplify SLCR initialization ARM: zynq: PM: Fixed simple typo. ARM: zynq: Setup default gpio number for Xilinx Zynq ARM: digicolor: add low level debug support ARM: initial support for Conexant Digicolor CX92755 SoC ARM: OMAP2+: Add dm816x hwmod support ARM: OMAP2+: Add clock domain support for dm816x ARM: OMAP2+: Add board-generic.c entry for ti81xx ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage ARM: at91: remove unused mach/system_rev.h ARM: at91: stop using HAVE_AT91_DBGUx ARM: at91: fix ordering of SRAM and PM initialization ...
2015-02-17Merge tag 'cleanup-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "This is a good healthy set of various code removals. Total net delta is 8100 lines removed. Among the larger cleanups are: - Removal of old Samsung S3C DMA infrastructure by Arnd - Removal of the non-DT version of the 'lager' board by Magnus Damm - General stale code removal on OMAP and Davinci by Rickard Strandqvist - Removal of non-DT support on am3517 platforms by Tony Lindgren ... plus several other cleanups of various platforms across the board" * tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (47 commits) ARM: sirf: drop redundant function and marco declaration arm: omap: specify PMUs are for ARMv7 CPUs arm: shmobile: specify PMUs are for ARMv7 CPUs arm: iop: specify PMUs are for XScale CPUs arm: pxa: specify PMUs are for XScale CPUs arm: realview: specify PMU types ARM: SAMSUNG: remove unused DMA infrastructure ARM: OMAP3: Add back Kconfig option MACH_OMAP3517EVM for ASoC ARM: davinci: Remove CDCE949 driver ARM: at91: remove useless at91rm9200_set_type() ARM: at91: remove useless at91rm9200_dt_initialize() ARM: at91: move debug-macro.S into the common space ARM: at91: remove useless at91_sysirq_mask_rtx ARM: at91: remove useless config MACH_AT91SAM9_DT ARM: at91: remove useless config MACH_AT91RM9200_DT ARM: at91: remove unused mach/memory.h ARM: at91: remove useless header file includes ARM: at91: remove unneeded header file rtc: at91/Kconfig: remove useless options ARM: at91/Documentation: add a README for Atmel SoCs ...
2015-02-17Merge tag 'fixes-non-critical-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC non-critical fixes from Olof Johansson: "Here's a small collection of fixes accrued during the last release that weren't considered severe enough to merge during the -rc series. A few of these are around resurrecting TI81xx support that's been broken for quite a while, the rest are smaller fixes -- most for PXA but a few across the board. There are also some updates to MAINTAINERS here, in particular for Broadcom platforms" * tag 'fixes-non-critical-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits) MAINTAINERS: fix git repositories for Broadcom SoCs ARM: pxa: fix broken isa interrupts for zeus and viper ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL enabled on UART3 ARM: OMAP: DRA7: hwmod: Make gpmc software supervised as the smart idle is broken ARM: AM43xx: hwmod: set DSS submodule parent hwmods ARM: OMAP2+: hwmod: print error if wait_target_ready() failed MAINTAINERS: add maintainer for OMAP hwmod data ARM: OMAP2+: Disable omap3 PM init for ti81xx ARM: OMAP2+: Fix reboot for 81xx ARM: OMAP2+: Fix dm814 and dm816 for clocks and timer init ARM: OMAP2+: Fix ti81xx class type ARM: OMAP2+: Fix ti81xx devtype ARM: OMAP2+: Fix error handling for omap2_clk_enable_init_clocks MAINTAINERS: add a git entry for BMIPS-based BCM7xxx SoCs MAINTAINERS: add a git entry for BCM7xxx ARM-based SoCs MAINTAINERS: update Broadcom Cygnus SoC git tree MAINTAINERS: move BCM63xx ARM-based SoCs git tree hx4700: regulator: declare full constraints ARM: pxa: add regulator_has_full_constraints to spitz board file ARM: pxa: add regulator_has_full_constraints to poodle board file ...
2015-01-26ARM: OMAP2+: Add dm816x hwmod supportTony Lindgren
Add minimal hwmod support that works at least on dm8168. This is based on the code in the earlier TI CDP tree, and an earlier patch by Aida Mynzhasova <aida.mynzhasova@skitlab.ru>. I've set up things to work pretty much the same way as for am33xx. We are basically using cm33xx.c with a different set of clocks and clockdomains. This code is based on the TI81XX-LINUX-PSP-04.04.00.02 patches published at: http://downloads.ti.com/dsps/dsps_public_sw/psp/LinuxPSP/TI81XX_04_04/04_04_00_02/index_FDS.html Cc: Aida Mynzhasova <aida.mynzhasova@skitlab.ru> Cc: Brian Hutchinson <b.hutchman@gmail.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-20ARM: OMAP2+: hwmod: print error if wait_target_ready() failedLokesh Vutla
Fixed pr_debug to pr_err when hwmod returns an error when enabling a module. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-01-17ARM: OMAP: Work around hardcoded interruptsMarc Zyngier
Commit 9a1091ef0017 ("irqchip: gic: Support hierarchy irq domain") changed the GIC driver to use a non-legacy IRQ domain on DT platforms. This patch assumes that DT-driven systems are getting all of their interrupts from device tree. Turns out that OMAP has quite a few hidden gems, and still uses hardcoded interrupts despite having fairly complete DTs. This patch attempts to work around these by offering a translation method that can be called directly from the hwmod code, if present. The same hack is sprinkled over PRCM and TWL. It isn't pretty, but it seems to do the job without having to add more hacks to the interrupt controller code. Tested on OMAP4 (Panda-ES) and OMAP5 (UEVM5432). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: updated to fix make randconfig issue] Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-07ARM: OMAP2+: omap_hwmod.c: Remove some unused functionsRickard Strandqvist
Removes some functions that are not used anywhere: omap_hwmod_pad_route_irq() omap_hwmod_no_setup_reset() omap_hwmod_read_hardreset() omap_hwmod_del_initiator_dep() omap_hwmod_enable_clocks() omap_hwmod_reset() omap_hwmod_ocp_barrier() omap_hwmod_disable_clocks() omap_hwmod_add_initiator_dep() This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-11-28Merge (part of) tag 'omap-for-v3.19/hwmod-and-defconfig' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc SoC related changes for omaps including hwmod clean-up for DSS, and hwmod data for more UARTs and ADC. Also few defconfig changes to enable devices found on am335x and am437x. [arnd: I removed the defconfig changes from the branch in order to cherry-pick them onto the next/defconfig branch, but I did not change the other commits] * commit '29c4ce17bcad': ARM: dts: cm-t3x30: add keypad support ARM: OMAP2+: hwmod: AM43x: add hwmod support for ADC on AM43xx ARM: DRA7: hwmod data: Add missing UART hwmod data ARM: dts: omap4.dtsi: remove dss_fck ARM: OMAP4: fix RFBI iclk ARM: OMAP4: hwmod: use MODULEMODE properly ARM: OMAP4: hwmod: set DSS submodule parent hwmods ARM: OMAP5: hwmod: set DSS submodule parent hwmods ARM: OMAP2+: hwmod: add parent_hwmod support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-11-20Merge tag 'omap-for-v3.19/prcm-cleanup' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc Pull "omap prcm clean-up for v3.19" from Tony Lindgren: Clean-up series for omap PRCM (Power Reset Clock Module) from Tero Kristo to move things a bit closer to becoming a proper device driver. * tag 'omap-for-v3.19/prcm-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (26 commits) ARM: OMAP2+: PRM: provide generic API for system reset ARM: OMAP3+: PRM: add generic API for reconfiguring I/O chain ARM: OMAP4: PRM: make PRCM interrupt handler related functions static ARM: OMAP3: PRM: make PRCM interrupt handler related functions static ARM: OMAP4: PRM: make omap4_prm_read/write_inst_reg calls static ARM: AM33xx: PRM: make direct register access functions static ARM: AM33xx: PRM: move global warm reset implementation to driver ARM: OMAP4+: CM: remove omap4_cm1/cm2_* functions ARM: OMAP4: CM: make cminst direct register access functions static ARM: OMAP4: CM: move public definitions from cminst44xx.h to cm44xx.h ARM: OMAP2+: PRM: add generic API for checking hardreset status ARM: OMAP2+: PRM: add generic API for deasserting hardware reset ARM: OMAP2+: PRM: add generic API for asserting hardware reset ARM: AM33xx: PRM: add support for prm_init ARM: AM43xx: hwmod: use OMAP4 hardreset ops instead of the AM33xx version ARM: AM33xx: hwmod: remove am33xx specific module SoC opts ARM: OMAP2/3: CM: make cm_split_idlest_reg SoC calls static ARM: OMAP2+: CM: add common APIs for cm_module_enable/disable ARM: OMAP2+: CM: make clkdm_hwsup operations static ARM: OMAP4+/AM33xx: CM: add common API for cm_wait_module_idle ... Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-11-19ARM: OMAP2+: hwmod: add parent_hwmod supportTomi Valkeinen
Add parent_hwmod pointer to omap_hwmod. This can be set to point to a "parent" hwmod that needs to be enabled for the "child" hwmod to work. This is used at hwmod setup time: when doing the initial setup and reset, first enable the parent hwmod, and after setup and reset is done, restore the parent hwmod to postsetup_state. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Archit Taneja <archit.taneja@gmail.com> [paul@pwsan.com: add kerneldoc documentation for parent_hwmod; note that it is a temporary workaround] Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-11-13ARM: OMAP2+: hwmod: drop unnecessary list initializationFelipe Balbi
ml->node and sl->node are currently initialized by means of INIT_LIST_HEAD(). That initialiation is followed by a list_add() call. Looking at what both these functions do we will have: ml->node.next = &ml->node; ml->node.prev = &ml->node; oi->master->master_ports.next.prev = &ml->node; ml->node.next = &oi->master->master_ports.next; ml->node.prev = &oi->master->master_ports; oi->master->master_ports.next = &ml->node; from this, it's clear that both INIT_LIST_HEAD() calls are unnecessary and can be safely removed. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-10-27ARM: OMAP3+: PRM: add generic API for reconfiguring I/O chainTero Kristo
This adds a generic API for reconfiguring the I/O chain. The implementation will call the SoC specific function registered during init time. The SoC specific reconfigure functions are also made static, as they don't need to be accessed outside the PRM driver itself. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: updated for recent omap3 prcm fixes] Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP4: CM: move public definitions from cminst44xx.h to cm44xx.hTero Kristo
cminst44xx.h will be removed, thus move the public APIs to cm44xx.h header. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP2+: PRM: add generic API for checking hardreset statusTero Kristo
PRM driver now has a generic API for checking hardreset status. SoC specific support functions are registered through the prm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP2+: PRM: add generic API for deasserting hardware resetTero Kristo
PRM driver now has a generic API for deasserting hardware resets. SoC specific support functions are registered through the prm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-10-27ARM: OMAP2+: PRM: add generic API for asserting hardware resetTero Kristo
PRM driver now has a generic API for asserting hardware resets. SoC specific support functions are registered through the prm_ll_data. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>