user/sven/linux.git/drivers/hwspinlock, branch v5.13

hwspinlock: remove sirf driver

2021-03-18T02:22:06Z

The CSR SiRF prima2/atlas platforms are getting removed, so this driver is 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.org Signed-off-by: Bjorn Andersson

hwspinlock: omap: Add support for K3 AM64x SoCs

2021-02-09T17:36:50Z

The AM64x SoC contains a HwSpinlock IP instance in the MAIN domain, and is a minor variant of the IP on the current TI K3 SoCs such as AM64x, J721E or J7200 SoCs. The IP is not built with the K3 safety feature in hardware, and has slightly different integration into the overall SoC. Add the support for this IP through a new compatible. Signed-off-by: Suman Anna Link: https://lore.kernel.org/r/20210209172240.2305-3-s-anna@ti.com Signed-off-by: Bjorn Andersson

hwspinlock: sirf: Remove the redundant 'of_match_ptr'

2020-12-10T19:34:40Z

Remove the the redundant 'of_match_ptr' macro to fix below warning when the CONFIG_OF is not selected. All warnings: drivers/hwspinlock/sirf_hwspinlock.c:87:34: warning: unused variable 'sirf_hwpinlock_ids' [-Wunused-const-variable] Reported-by: kernel test robot Signed-off-by: Baolin Wang Link: https://lore.kernel.org/r/250d35cb489c3c4c066f7ce256d27f36712a1979.1591618255.git.baolin.wang7@gmail.com Signed-off-by: Bjorn Andersson

hwspinlock: sprd: fixed warning of unused variable 'sprd_hwspinlock_of_match'

2020-11-18T03:42:13Z

The macro function of_match_ptr() is NULL if CONFIG_OF is not set, in this case Clang compiler would complain the of_device_id variable is unused. Reviewed-by: Baolin Wang Reported-by: kernel test robot Fixes: d8c8bbbb1aba ("hwspinlock: sprd: Add hardware spinlock driver") Signed-off-by: Chunyan Zhang Link: https://lore.kernel.org/r/20201112070410.14810-1-zhang.lyra@gmail.com Signed-off-by: Bjorn Andersson

hwspinlock: sprd: use module_platform_driver() instead postcore initcall

2020-11-03T00:04:06Z

The hardware spinlock devices are defined in the DT, there's no need for init calls order, remove boilerplate code by using module_platform_driver. Reviewed-by: Baolin Wang Signed-off-by: Chunyan Zhang Link: https://lore.kernel.org/r/20201030034654.15775-3-zhang.lyra@gmail.com Signed-off-by: Bjorn Andersson

hwspinlock: sprd: Remove redundant header files

2020-10-26T15:17:54Z

Remove redundant header files. Signed-off-by: Baolin Wang Link: https://lore.kernel.org/r/1590991552-93643-1-git-send-email-baolin.wang@linux.alibaba.com Signed-off-by: Bjorn Andersson

hwspinlock: qcom: Allow mmio usage in addition to syscon

2020-07-14T05:29:28Z

In modern Qualcomm platforms the mutex region of the TCSR is forked off into its own block, all with a offset of 0 and stride of 4096, and in some of these platforms no other registers in this region is accessed from Linux. So add support for directly memory mapping this register space, to avoid the need to represent this block using a syscon. Reviewed-by: Baolin Wang Reviewed-by: Vinod Koul Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20200622075956.171058-4-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson

hwspinlock: Simplify Kconfig

2020-06-21T07:36:03Z

Every hwspinlock driver is expected to depend on the hwspinlock core, so it's possible to simplify the Kconfig, 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.com Signed-off-by: Bjorn Andersson

hwspinlock: hwspinlock_internal.h: Replace zero-length array with flexible-array member

2020-03-26T05:30:46Z

The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Reviewed-by: Baolin Wang Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/20200319213839.GA10669@embeddedor.com Signed-off-by: Bjorn Andersson

hwspinlock: Allow drivers to be built with COMPILE_TEST

2020-03-26T05:30:46Z

Allow drivers to be built with COMPILE_TEST. Signed-off-by: Baolin Wang Link: https://lore.kernel.org/r/5a95c3de07ef020a4e2f2776fa5adb00637ee387.1581324976.git.baolin.wang7@gmail.com Signed-off-by: Bjorn Andersson