- 18 4月, 2016 1 次提交
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由 Pankaj Dubey 提交于
As now we have dedicated driver for SROM controller, it will take care of saving register banks during S2R so we can safely remove these settings from mach-exynos. Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org> [k.kozlowski: Need to select also SAMSUNG_MC] Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
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- 25 2月, 2016 1 次提交
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由 Pankaj Dubey 提交于
Moving Exynos PMU specific header file into "include/linux/soc/samsung" thus updated affected files under "mach-exynos" to use new location of these header files. Signed-off-by: NAmit Daniel Kachhap <amitdanielk@gmail.com> [tested on Peach-Pi (Exynos5880)] Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> [for testing on Trats2 (Exynos4412) and Odroid XU3 (Exynos5422)] Tested-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
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- 23 10月, 2015 1 次提交
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由 Marc Zyngier 提交于
Now that the IRQCHIP_DECLARE macro has been moved to linux/irqchip.h, it becomes possible to cleanup the open-coded versions of the same macro that have been added to some private irqchips implementations. Cc: Sascha Hauer <kernel@pengutronix.de> Acked-by: NKukjin Kim <kgene@kernel.org> Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: NShawn Guo <shawnguo@kernel.org> Acked-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 14 10月, 2015 2 次提交
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由 Marc Zyngier 提交于
Since we now have a generic data structure to express an interrupt specifier, convert all hierarchical irqchips that are OF based to use a fwnode_handle as part of their alloc and xlate (which becomes translate) callbacks. As most of these drivers have dependencies (they exchange IRQ specifiers), change them all in a single, massive patch... Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: NHanjun Guo <hanjun.guo@linaro.org> Tested-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-6-git-send-email-marc.zyngier@arm.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Marc Zyngier 提交于
The struct irq_domain contains a "struct device_node *" field (of_node) that is almost the only link between the irqdomain and the device tree infrastructure. In order to prepare for the removal of that field, convert all users to use irq_domain_get_of_node() instead. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: NHanjun Guo <hanjun.guo@linaro.org> Tested-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-2-git-send-email-marc.zyngier@arm.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 30 7月, 2015 1 次提交
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由 Kukjin Kim 提交于
This patch moves regs-srom header file into mach-exynos. Because it is not used for others except mach-exynos. Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 21 7月, 2015 1 次提交
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由 Krzysztof Kozlowski 提交于
The magic cookie for entering sleep state was defined and used in two different places: firmware.c and suspend.c. Move it to one common place to reduce duplication. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 06 6月, 2015 1 次提交
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由 Krzysztof Kozlowski 提交于
The irq_domain_ops are not modified by the driver and the irqdomain core code accepts pointer to a const data. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 01 6月, 2015 1 次提交
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由 Marc Zyngier 提交于
Commit 8b283c02 (ARM: exynos4/5: convert pmu wakeup to stacked domains) changed the Exynos PMU code to use stacked domains. This has led to a number of interrupt numbers to be fixed. In the meantime, support for Exynos 3250 was added, missing the required change to this platform. This amounts to revert ace283a0 (ARM: EXYNOS: Fix wrong hwirq of RTC interrupt for Exynos3250 SoC), as the initial patch was right, just a bit early... Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com> Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
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- 14 5月, 2015 1 次提交
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由 Krzysztof Kozlowski 提交于
On Exynos4412 boards (Trats2, Odroid U3) after enabling L2 cache in 56b60b8b ("ARM: 8265/1: dts: exynos4: Add nodes for L2 cache controller") the second suspend to RAM failed. First suspend worked fine but the next one hang just after powering down of secondary CPUs (system consumed energy as it would be running but was not responsive). The issue was caused by enabling delayed reset assertion for CPU0 just after issuing power down of cores. This was introduced for Exynos4 in 13cfa6c4 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off"). The whole behavior is not well documented but after checking with vendor code this should be done like this (on Exynos4): 1. Enable delayed reset assertion when system is running (for all CPUs). 2. Disable delayed reset assertion before suspending the system. This can be done after powering off secondary CPUs. 3. Re-enable the delayed reset assertion when system is resumed. Fixes: 13cfa6c4 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off") Cc: <stable@vger.kernel.org> Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Tested-by: NChanwoo Choi <cw00.choi@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 13 5月, 2015 1 次提交
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由 Julien Grall 提交于
Since commit 8b283c02 ("ARM: exynos4/5: convert pmu wakeup to stacked domains"), a suspend/resume is not supported on old DT. Although, rather than printing a warning and continue to boot, the kernel will segfault just after: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1 at arch/arm/mach-exynos/suspend.c:726 exynos_pm_init+0x4c/0xc8() Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.1.0-rc3 #1 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [<c02181c4>] (unwind_backtrace) from [<c0213b2c>] (show_stack+0x10/0x14) [<c0213b2c>] (show_stack) from [<c0949890>] (dump_stack+0x70/0x8c) [<c0949890>] (dump_stack) from [<c024f0b0>] (warn_slowpath_common+0x74/0xac) [<c024f0b0>] (warn_slowpath_common) from [<c024f104>] (warn_slowpath_null+0x1c/0x24) [<c024f104>] (warn_slowpath_null) from [<c0cf1d28>] (exynos_pm_init+0x4c/0xc8) [<c0cf1d28>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28) [<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0) [<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8) [<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4) [<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34) ---[ end trace 335bd937d409f3c7 ]--- Outdated DT detected, suspend/resume will NOT work Unable to handle kernel NULL pointer dereference at virtual address 00000608 pgd = c0204000 [00000608] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 4.1.0-rc3 #1 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) task: db06c000 ti: db05a000 task.ti: db05a000 PC is at exynos_pm_init+0x6c/0xc8 LR is at exynos_pm_init+0x54/0xc8 pc : [<c0cf1d48>] lr : [<c0cf1d30>] psr: 60000113 sp : db05bee8 ip : 00000000 fp : 00000000 r10: 00000116 r9 : c0dab2d4 r8 : d8d5f440 r7 : c0db7ad8 r6 : c0db7ad8 r5 : 00000000 r4 : c0ceaacc r3 : c0eb2aec r2 : c0951e40 r1 : 00000000 r0 : c0eb2acc Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 6020406a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xdb05a220) Stack: (0xdb05bee8 to 0xdb05c000) bee0: c0db7ad8 c0d8fe34 c0cf17c8 c0ceaae8 00000000 c020aa64 bf00: 00000033 c09580b8 db04fd00 c0ed79a4 c0eb1000 c0ce8588 c0ca2bc4 c0353fcc bf20: 00000000 c0df358c 60000113 00000000 dbfffba4 00000000 c0ca2bc4 c026654c bf40: c0b80134 c0ca1a64 00000007 00000007 c0df3554 c0d6c2f4 00000007 c0d6c2d4 bf60: c0eb1000 c0ce8588 c0dab2d4 00000116 00000000 c0ce8d4c 00000007 00000007 bf80: c0ce8588 c0944a24 00000000 c0944a24 00000000 00000000 00000000 00000000 bfa0: 00000000 c0944a2c 00000000 c0210e60 00000000 00000000 00000000 00000000 bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [<c0cf1d48>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28) [<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0) [<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8) [<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4) [<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34) Code: e59f005c e59220c0 e5901000 e5832000 (e591e608) ---[ end trace 335bd937d409f3c8 ]--- This is happening because pmu_base_addr is only initialized when the PMU is an interrupt controller. It's not the case on old DT. Signed-off-by: NJulien Grall <julien.grall@citrix.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 06 5月, 2015 1 次提交
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由 Nicolas Pitre 提交于
This is currently unused. If a suspend must be limited to CPU level only by preventing the last man from triggering a cluster level suspend then this should be determined according to many other criteria the MCPM layer is currently not aware of. It is unlikely that mcpm_cpu_suspend() would be the proper conduit for that information anyway. Signed-off-by: NNicolas Pitre <nico@linaro.org> Acked-by: NDave Martin <Dave.Martin@arm.com>
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- 19 3月, 2015 1 次提交
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由 Marc Zyngier 提交于
Exynos has been (ab)using the gic_arch_extn to provide wakeup from suspend, and it makes a lot of sense to convert this code to use stacked domains instead. This patch does just this, updating the DT files to actually reflect what the HW provides. BIG FAT WARNING: because the DTs were so far lying by not exposing the fact that the PMU block is actually the first interrupt controller in the chain for RTC, kernels with this patch applied wont have any suspend-resume facility when booted with old DTs, and old kernels with updated DTs may not even boot. Also, I strongly suspect that there is more than two wake-up interrupts on these platforms, but I leave it to the maintainers to fix their mess. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088693-15724-2-git-send-email-marc.zyngier@arm.com [ jac: squash in maz's fixup from https://lkml.kernel.org/r/5506989D.9050703@arm.com ] Signed-off-by: NJason Cooper <jason@lakedaemon.net>
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- 18 3月, 2015 3 次提交
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由 Krzysztof Kozlowski 提交于
Since 32b0aa9a ("ARM: EXYNOS: Remove i2c sys configuration related code") the Exynos 5250 no longer saves additional registers under 'exynos_pm_data.extra_save' field. No one else uses this code so get rid of it making also 'exynos_pm_data' const everywhere. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: NPankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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由 Krzysztof Kozlowski 提交于
The 'exynos5420_pm_data' is not modified and can be made const. Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: NPankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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由 Krzysztof Kozlowski 提交于
The 'pm_data', 'exynos_release_ret_regs', 'exynos3250_release_ret_regs' and 'exynos5420_release_ret_regs' are not exported nor used outside of suspend.c file. Make them static. This fixes following sparse warnings: arch/arm/mach-exynos/suspend.c:83:23: warning: symbol 'pm_data' was not declared. Should it be static? arch/arm/mach-exynos/suspend.c:106:14: warning: symbol 'exynos_release_ret_regs' was not declared. Should it be static? arch/arm/mach-exynos/suspend.c:117:14: warning: symbol 'exynos5420_release_ret_regs' was not declared. Should it be static? Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: NPankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 27 2月, 2015 1 次提交
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由 Chanwoo Choi 提交于
This patch fixes wrong hwirq of RTC irq for Exynos3250 SoC. When entering suspend state, 'enable_irq_wake fail' happen because of the mismatch of RTC hwirq. [ 429.200937] Freezing user space processes ... (elapsed 0.002 seconds) done. [ 429.203383] Freezing remaining freezable tasks ... (elapsed 0.000 seconds) done. [ 429.209914] Suspending console(s) (use no_console_suspend to debug) [ 429.370685] wake enabled for irq 65 [ 429.370837] wake enabled for irq 64 [ 429.370868] wake enabled for irq 79 ... [ 429.372120] s3c-rtc 10070000.rtc: enable_irq_wake failed Fixes: a4f582f5 (ARM: EXYNOS: Add exynos3250 suspend-to-ram support) Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 19 2月, 2015 1 次提交
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由 Uwe Kleine-König 提交于
of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs in arch/arm as const, too. While at it also add some __initconst annotations. Acked-by: NJason Cooper <jason@lakedameon.net> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
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- 30 1月, 2015 1 次提交
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Commit c2dd114d ("ARM: EXYNOS: fix register setup for AFTR mode code") added S5P_CENTRAL_SEQ_OPTION register setup fix for all Exynos SoCs to AFTR mode code-path. It turned out that for coupled cpuidle AFTR mode on Exynos4210 (added by the next patch) applying this fix causes lockup so enable it in the AFTR mode code-path only on SoCs that require it (in the suspend code-path it can be always applied like it was before commit c2dd114d ("ARM: EXYNOS: fix register setup for AFTR mode code") Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Colin Cross <ccross@google.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 14 1月, 2015 1 次提交
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由 Chanwoo Choi 提交于
This patch supports suspend-to-ram for Exynos3250 SoC and the SoC doesn't contain L2 cache. Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 09 1月, 2015 1 次提交
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由 Pankaj Dubey 提交于
As all these code has been moved into i2c driver, now we can safely remove them from machine files. CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: NKukjin Kim <kgene@kernel.org>
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- 21 11月, 2014 4 次提交
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由 Javier Martinez Canillas 提交于
The regulator framework has a set of helpers functions to be used when the system is entering and leaving from suspend but these are not called on Exynos platforms. This means that the .set_suspend_* function handlers defined by regulator drivers are not called when the system is suspended. Suggested-by: NDoug Anderson <dianders@chromium.org> Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: NDoug Anderson <dianders@chromium.org> Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Abhilash Kesavan 提交于
Use the MCPM layer to handle core suspend/resume on Exynos5420. Also, restore the entry address setup code post-resume. Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Acked-by: NNicolas Pitre <nico@linaro.org> Reviewed-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Vikas Sajjan 提交于
Adds Suspend-to-RAM support for EXYNOS5420 Signed-off-by: NVikas Sajjan <vikas.sajjan@samsung.com> Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Pankaj Dubey 提交于
This patch moves PMU specific definitions into a new file as exynos-pmu.h. This will help in reducing dependency of common.h in pmu.c. Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Tested-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 20 10月, 2014 7 次提交
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Fix building of exynos_defconfig with CONFIG_PM_SLEEP disabled and CONFIG_ARM_EXYNOS_CPUIDLE enabled by: * adding EXYNOS_CPU_SUSPEND config option * always building sleep.o * building pm.o if EXYNOS_CPU_SUSPEND is enabled * moving suspend specific code from pm.c to suspend.c * enabling pm-common.o build also for EXYNOS_CPU_SUSPEND option [ Please note that there are no changes in the code moved from pm.c to suspend.c except making few functions non-static and cleaning up includes. ] Also while at it update Copyright dates. The build error messages: drivers/built-in.o: In function `exynos_enter_core0_aftr': /home/bzolnier/linux/drivers/cpuidle/cpuidle-exynos.c:36: undefined reference to `cpu_suspend' arch/arm/mach-exynos/built-in.o:(.data+0x74): undefined reference to `exynos_enter_aftr' make: *** [vmlinux] Error 1 This patch has been tested on Exynos4210 based Origen board. Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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Add S5P_CENTRAL_SEQ_OPTION register setup to cpuidle AFTR mode code by moving the relevant code from exynos_pm_suspend() (used only by suspend) to exynos_pm_central_suspend() (used by both suspend and AFTR). Without this setup AFTR mode doesn't show any benefit over WFI one (at least on Exynos4412 SoC). When this setup is applied AFTR mode reduces power consumption by ~12% (as measured on Trats2 board). This change is a preparation for adding secure firmware support to EXYNOS cpuidle driver. Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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* Move cp15 registers saving to exynos_save_cp15() helper and add additional helper usage to do_idle firmware method. * Use resume firmware method instead of exynos_cpu_restore_register() and skip exynos_cpu_save_register() on boards with secure firmware enabled. * Use sysram_ns_base_addr + 0x24/0x20 addresses instead of the default ones used by exynos_cpu_set_boot_vector() on boards with secure firmware enabled. * Use do_idle firmware method instead of cpu_do_idle() on boards with secure firmware enabled. Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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Replace EXYNOS_BOOT_VECTOR_ADDR and EXYNOS_BOOT_VECTOR_FLAG macros by exynos_boot_vector_addr() and exynos_boot_vector_flag() static inlines. This patch shouldn't cause any functionality changes. Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Tomasz Figa 提交于
On a numer of Exynos-based boards Linux kernel is running in non-secure mode under a secure firmware. This means that certain operations need to be handled in special way, with firmware assistance. System-wide suspend/resume is an example of such operations. This patch adds support for firmware-assisted suspend/resume by leveraging recently introduced suspend and resume firmware operations and modifying existing suspend/resume paths to account for presence of secure firmware. Signed-off-by: NTomasz Figa <t.figa@samsung.com> [kgene.kim@samsung.com: rebased] Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Vikas Sajjan 提交于
Refactoring the pm.c to avoid using "soc_is_exynos" checks, instead use the DT based lookup. While at it, consolidate the common code across SoCs and create static helper functions. Signed-off-by: NVikas Sajjan <vikas.sajjan@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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由 Vikas Sajjan 提交于
Move the Disabling of JPEG USE_RETENTION for exynos5250 to pmu.c to make way for refactoring of pm.c and to create common functions across exynos4 and exynos5250. Signed-off-by: NVikas Sajjan <vikas.sajjan@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 09 8月, 2014 1 次提交
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由 Tomasz Figa 提交于
Due to recent consolidation of Exynos suspend and cpuidle code, some parts of suspend and resume sequences are executed two times, once from exynos_pm_syscore_ops and then from exynos_cpu_pm_notifier() and thus it breaks suspend, at least on Exynos4-based boards. In addition, simple core power down from a cpuidle driver could, in case of CPU 0 could result in calling functions that are specific to suspend and deeper idle states. This patch fixes the issue by moving those operations outside the CPU PM notifier into suspend and AFTR code paths. This leads to a bit of code duplication, but allows additional code simplification, so in the end more code is removed than added. Fixes: 85f9f908 ("ARM: EXYNOS: Use the cpu_pm notifier for pm") Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Cc: arm@kernel.org Signed-off-by: NTomasz Figa <t.figa@samsung.com> [b.zolnierkie: ported patch over current changes] [b.zolnierkie: fixed exynos_aftr_finisher() return value] Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 23 7月, 2014 1 次提交
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由 Pankaj Dubey 提交于
Under "arm/mach-exynos" many files are using PMU register offsets. Since we have added support for accessing PMU base address via DT, now we can remove PMU mapping from exynosX_iodesc. Let's convert all these access using iomapped address. This will help us in removing static mapping of PMU base address as well as help in reducing dependency over machine header files. Thus helping for migration of PMU implementation from machine to driver folder which can be reused for ARM64 based SoC. Also as we have removed static mappings from "regs-pmu.h" it does not need map.h anymore. But "platsmp.c" needed this and till now it got included indirectly. So lets move header inclusion of "mach/map.h" from "regs-pmu.h" to "platsmp.c". Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 20 7月, 2014 1 次提交
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由 Krzysztof Kozlowski 提交于
Fix building of exynos_defconfig with disabled PM_SLEEP: CONFIG_PM_SLEEP=n CONFIG_PM_SLEEP_SMP=n CONFIG_SUSPEND=n by moving functions for power up/down of CPU and cluster to platsmp.c The build error messages: arch/arm/mach-exynos/built-in.o: In function `exynos_boot_secondary': arch/arm/mach-exynos/platsmp.c:111: undefined reference to `exynos_cpu_power_state' arch/arm/mach-exynos/platsmp.c:112: undefined reference to `exynos_cpu_power_up' arch/arm/mach-exynos/platsmp.c:116: undefined reference to `exynos_cpu_power_state' make: *** [vmlinux] Error 1 Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com>, Signed-off-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NOlof Johansson <olof@lixom.net>
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- 19 7月, 2014 1 次提交
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由 Tomasz Figa 提交于
Since S5PV210 now has a complete clock driver using Common Clock Framework, there is no reason to keep the old code. Remove it together with the whole legacy Samsung-specific clock framework which no longer has any users. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 18 7月, 2014 1 次提交
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由 Russell King 提交于
Ensure that platform maintainers check the CPU part number in the right manner: the CPU part number is meaningless without also checking the CPU implement(e|o)r (choose your preferred spelling!) Provide an interface which returns both the implementer and part number together, and update the definitions to include the implementer. Mark the old function as being deprecated... indeed, using the old function with the definitions will now always evaluate as false, so people must update their un-merged code to the new function. While this could be avoided by adding new definitions, we'd also have to create new names for them which would be awkward. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 15 7月, 2014 1 次提交
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由 Pankaj Dubey 提交于
While making PMU implementation to be device tree based, there are few register offsets related with SYSREG present in regs-pmu.h, so let's make a new header file "regs-sys.h" to keep all such SYSREG related register offsets and remove them from "regs-pmu.h" Signed-off-by: NPankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 18 6月, 2014 1 次提交
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由 Abhilash Kesavan 提交于
We have an soc check to ensure that the scu and certain A9 specific registers are not accessed on Exynos5250 (which is A15 based). Rather than adding another soc specific check for 5420 let us test for the Cortex A9 primary part number. This resolves the below crash seen on exynos5420 during core switching after the CPUIdle consolidation series was merged. [ 155.975589] [<c0013174>] (scu_enable) from [<c001b0dc>] (exynos_cpu_pm_notifier+0x80/0xc4) [ 155.983833] [<c001b0dc>] (exynos_cpu_pm_notifier) from [<c003c1b0>] (notifier_call_chain+0x44/0x84) [ 155.992851] [<c003c1b0>] (notifier_call_chain) from [<c007a49c>] (cpu_pm_notify+0x20/0x3c) [ 156.001089] [<c007a49c>] (cpu_pm_notify) from [<c007a564>] (cpu_pm_exit+0x20/0x38) [ 156.008635] [<c007a564>] (cpu_pm_exit) from [<c0019e98>] (bL_switcher_thread+0x298/0x40c) [ 156.016788] [<c0019e98>] (bL_switcher_thread) from [<c003842c>] (kthread+0xcc/0xe8) [ 156.024426] [<c003842c>] (kthread) from [<c000e438>] (ret_from_fork+0x14/0x3c) [ 156.031621] Code: ea017fec c0530a00 c052e3f8 c0012dcc (e5903000 Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 26 5月, 2014 1 次提交
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由 Daniel Lezcano 提交于
A look at the code reveals use of S5P_VA_SYSRAM macro, in case of certain SoC revisions, which is not valid any longer, after SYSRAM started to be mapped dynamically. The new dynamic mapping is stored in sysram_base_addr variable, which is declared static in platsmp.c This fix makes sysram_base_addr non-static, declared it in common.h and used in pm.c instead of S5P_VA_SYSRAM. Suggested-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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