Changes in Kconfig

3c881e05 - hwspinlock: add sun6i hardware spinlock support

Sun, 14 Mar 2021 09:31:13 +0000

hwspinlock: add sun6i hardware spinlock supportAdds the sun6i_hwspinlock driver for the hardware spinlock unit found inmost of the sun6i compatible SoCs.This unit provides at least 32 spinlocks in hardware. The implementationsupports 32, 64, 128 or 256 32bit registers. A lock can be taken byreading a register and released by writing a 0 to it. This driversupports all 4 spinlock setups, but for now only the first setup (32locks) seem to exist in available devices. This spinlock unit is sharedbetween all ARM cores and the embedded companion core. All of them cantake/release a lock with a single cycle operation. It can be used tosync access to devices shared by the ARM cores and the companion core.There are two ways to check if a lock is taken. The first way is to reada lock. If a 0 is returned, the lock was free and is taken now. If an 1is returned, the caller has to try again. Which means the lock is taken.The second way is to read a 32bit wide status register where every bitrepresents one of the 32 first locks. According to the datasheets thisstatus register supports only the 32 first locks. This is the reason thefirst way (lock read/write) approach is used to be able to cover all 256locks in future devices. The driver also reports the amount of supportedlocks via debugfs.Reviewed-by: Samuel Holland Acked-by: Maxime Ripard Signed-off-by: Wilken Gottwalt Link: https://lore.kernel.org/r/bfd2b97307c2321b15c09683f4bd5e1fcc792f13.1615713499.git.wilken.gottwalt@posteo.netSigned-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

1cb8f3e2 - hwspinlock: remove sirf driver

Wed, 20 Jan 2021 13:25:37 +0000

hwspinlock: remove sirf driverThe CSR SiRF prima2/atlas platforms are getting removed, so this driveris no longer needed.Cc: Barry Song Link: https://lore.kernel.org/linux-arm-kernel/20210120124812.2800027-1-arnd@kernel.org/T/Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20210120132537.2285157-1-arnd@kernel.orgSigned-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

285e74ab - hwspinlock: Simplify Kconfig

Tue, 14 Apr 2020 22:09:43 +0000

hwspinlock: Simplify KconfigEvery hwspinlock driver is expected to depend on thehwspinlock core, so it's possible to simplify theKconfig, factoring out the HWSPINLOCK dependency.Reviewed-by: Baolin Wang Signed-off-by: Ezequiel Garcia Link: https://lore.kernel.org/r/20200414220943.6203-1-ezequiel@collabora.comSigned-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

ffd0bbfb - hwspinlock: Allow drivers to be built with COMPILE_TEST

Mon, 10 Feb 2020 09:01:07 +0000

hwspinlock: Allow drivers to be built with COMPILE_TESTAllow drivers to be built with COMPILE_TEST.Signed-off-by: Baolin Wang Link: https://lore.kernel.org/r/5a95c3de07ef020a4e2f2776fa5adb00637ee387.1581324976.git.baolin.wang7@gmail.comSigned-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

6fa154e2 - hwspinlock/omap: Add support for TI K3 SoCs

Fri, 31 May 2019 02:13:20 +0000

hwspinlock/omap: Add support for TI K3 SoCsA HwSpinlock IP is also present on the newer TI K3 AM65x and J721Efamily of SoCs within the Main NavSS sub-module. Reuse the existingOMAP Hwspinlock driver to extend the support for this IP on K3 AM65xSoCs as well. The IP has slightly different bit-fields in theSYSCONFIG and SYSSTATUS registers.Signed-off-by: Suman Anna Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

f24fcff1 - hwspinlock: add STM32 hwspinlock device

Wed, 14 Nov 2018 09:00:25 +0000

hwspinlock: add STM32 hwspinlock deviceThis patch adds support of hardware semaphores for stm32mp1 SoC.The hardware block provides 32 semaphores.Signed-off-by: Benjamin Gaignard Signed-off-by: Benjamin Gaignard Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

eebba71e - hwspinlock/core: Switch to SPDX license identifier

Fri, 11 May 2018 17:03:16 +0000

hwspinlock/core: Switch to SPDX license identifierUse the appropriate SPDX license identifier in the Hwspinlock coredriver source files and drop the previous boilerplate license text.Signed-off-by: Suman Anna Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

d048236d - hwspinlock: Change hwspinlock to a bool

Sat, 04 Nov 2017 06:37:48 +0000

hwspinlock: Change hwspinlock to a boolChange hwspinlock to a bool in case some drivers will meet dependencyissue when hwspinlock is built as a module.Signed-off-by: Baolin Wang Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

d8c8bbbb - hwspinlock: sprd: Add hardware spinlock driver

Wed, 17 May 2017 05:59:29 +0000

hwspinlock: sprd: Add hardware spinlock driverThe Spreadtrum hardware spinlock device can provide hardware assistancefor synchronization between the multiple subsystems.Signed-off-by: Baolin Wang Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

35fc8a07 - Make HWSPINLOCK a menuconfig to ease disabling

Tue, 11 Apr 2017 14:21:02 +0000

Make HWSPINLOCK a menuconfig to ease disablingSo that there's no need to get into the submenu to disable all related configentries.Signed-off-by: Vincent Legoll Signed-off-by: Bjorn Andersson List of files: /linux-6.15/drivers/hwspinlock/Kconfig

cc16d664 - hwspinlock: add a CSR atlas7 driver

Tue, 26 May 2015 08:28:29 +0000

hwspinlock: add a CSR atlas7 driverAdd hwspinlock support for the CSR atlas7 SoC.The Hardware Spinlock device on atlas7 provides hardware assistancefor synchronization between the multiple processors in the system(dual Cortex-A7, CAN bus Cortex-M3 and audio DSP).Reviewed-by: Suman Anna Reviewed-by: Bjorn Andersson Signed-off-by: Wei Chen Signed-off-by: Barry Song Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

19a0f612 - hwspinlock: qcom: Add support for Qualcomm HW Mutex block

Tue, 24 Mar 2015 17:11:05 +0000

hwspinlock: qcom: Add support for Qualcomm HW Mutex blockAdd driver for Qualcomm Hardware Mutex block found in many QualcommSoCs.Based on initial effort by Kumar Gala Signed-off-by: Bjorn Andersson Reviewed-by: Andy Gross Reviewed-by: Jeffrey Hugo Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

ceca89e8 - hwspinlock: enable OMAP build for AM33xx, AM43xx & DRA7xx

Wed, 02 Jul 2014 23:01:00 +0000

hwspinlock: enable OMAP build for AM33xx, AM43xx & DRA7xxHwSpinlocks are supported on TI's AM33xx, AM43xx and DRA7xx SoCdevice families as well. The IPs are identical to that ofOMAP4/OMAP5, except for the number of locks.Add a depends on to the above family of SoCs to enable thebuild support for OMAP hwspinlock driver for any of the aboveSoC configs.Signed-off-by: Suman Anna [small commit log changes]Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

8ae053d6 - hwspinlock/omap: support OMAP5 as well

Wed, 27 Feb 2013 17:10:36 +0000

hwspinlock/omap: support OMAP5 as wellOMAP5 has spinlocks, too.Signed-off-by: Vincent Stehlé Cc: Tony Lindgren Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

f84a8ecf - hwspinlock/u8500: add hwspinlock driver

Thu, 08 Sep 2011 19:47:40 +0000

hwspinlock/u8500: add hwspinlock driverAdd hwspinlock driver for U8500's Hsem hardware.At this point only HSem's protocol 1 is used (i.e. no interrupts).Signed-off-by: Mathieu Poirier Acked-by: Linus Walleij [ohad@wizery.com: adopt recent hwspin_lock_{un}register API changes][ohad@wizery.com: set the owner member of the driver][ohad@wizery.com: mark ->remove() function as __devexit][ohad@wizery.com: write commit log][ohad@wizery.com: small cleanups]Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

315d8f5c - hwspinlock/core: simplify Kconfig

Sun, 04 Sep 2011 20:19:51 +0000

hwspinlock/core: simplify KconfigSimplify hwspinlock's Kconfig by making the global CONFIG_HWSPINLOCKentry invisible; users will just select it when needed.This also prepares the ground for adding hwspinlock support for otherplatforms (the 'depends on ARCH_OMAP4' was rather hideous, and whilewe're at it, a dedicated menu is added).Signed-off-by: Ohad Ben-Cohen List of files: /linux-6.15/drivers/hwspinlock/Kconfig

4fa8eebb - hwspinlock: depend on OMAP4

Fri, 18 Mar 2011 23:53:21 +0000

hwspinlock: depend on OMAP4Currently only OMAP4 supports hwspinlocks, so don't bother askinganyone else.Signed-off-by: Ohad Ben-Cohen Signed-off-by: Tony Lindgren List of files: /linux-6.15/drivers/hwspinlock/Kconfig

70ba4cc2 - drivers: hwspinlock: add OMAP implementation

Thu, 17 Feb 2011 17:52:03 +0000

drivers: hwspinlock: add OMAP implementationAdd hwspinlock support for the OMAP4 Hardware Spinlock device.The Hardware Spinlock device on OMAP4 provides hardware assistancefor synchronization between the multiple processors in the system(dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP).[ohad@wizery.com: adapt to hwspinlock framework, tidy up]Signed-off-by: Simon Que Signed-off-by: Hari Kanigeri Signed-off-by: Krishnamoorthy, Balaji T Signed-off-by: Ohad Ben-Cohen Cc: Benoit Cousson Cc: Kevin Hilman Cc: Grant Likely Cc: Arnd Bergmann Cc: Paul Walmsley Cc: Russell King Signed-off-by: Tony Lindgren List of files: /linux-6.15/drivers/hwspinlock/Kconfig

bd9a4c7d - drivers: hwspinlock: add framework

Thu, 17 Feb 2011 17:52:03 +0000

drivers: hwspinlock: add frameworkAdd a platform-independent hwspinlock framework.Hardware spinlock devices are needed, e.g., in order to access datathat is shared between remote processors, that otherwise have noalternative mechanism to accomplish synchronization and mutual exclusionoperations.Signed-off-by: Ohad Ben-Cohen Cc: Hari Kanigeri Cc: Benoit Cousson Cc: Kevin Hilman Cc: Grant Likely Cc: Paul Walmsley Cc: Russell King Acked-by: Arnd Bergmann Signed-off-by: Tony Lindgren List of files: /linux-6.15/drivers/hwspinlock/Kconfig