kernel/linux.git/drivers/clk/xilinx, branch v6.1.168

clk: xilinx: vcu: unregister pll_post only if registered correctly

2025-08-15T10:05:01+00:00

[ Upstream commit 3b0abc443ac22f7d4f61ddbbbbc5dbb06c87139d ] If registration of pll_post is failed, it will be set to NULL or ERR, unregistering same will fail with following call trace: Unable to handle kernel NULL pointer dereference at virtual address 008 pc : clk_hw_unregister+0xc/0x20 lr : clk_hw_unregister_fixed_factor+0x18/0x30 sp : ffff800011923850 ... Call trace: clk_hw_unregister+0xc/0x20 clk_hw_unregister_fixed_factor+0x18/0x30 xvcu_unregister_clock_provider+0xcc/0xf4 [xlnx_vcu] xvcu_probe+0x2bc/0x53c [xlnx_vcu] Fixes: 4472e1849db7 ("soc: xilinx: vcu: make pll post divider explicit") Signed-off-by: Rohit Visavalia Link: https://lore.kernel.org/r/20250210113614.4149050-2-rohit.visavalia@amd.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider()

2023-07-19T14:21:30+00:00

[ Upstream commit 9c632a6396505a019ea6d12b5ab45e659a542a93 ] Smatch detected this potential error pointer dereference clk_wzrd_register_divider(). If devm_clk_hw_register() fails then it sets "hw" to an error pointer and then dereferences it on the next line. Return the error directly instead. Fixes: 5a853722eb32 ("staging: clocking-wizard: Add support for dynamic reconfiguration") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/f0e39b5c-4554-41e0-80d9-54ca3fabd060@kili.mountain Reviewed-by: Michal Simek Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: clocking-wizard: Depend on HAS_IOMEM

2022-10-03T20:27:58+00:00

This driver uses devm_platform_ioremap_resource() and thus depends on HAS_IOMEM. Add the Kconfig dependency to avoid build issues. Reported-by: kernel test robot Cc: Shubhrajyoti Datta Fixes: c822490f52da ("clk: clocking-wizard: Move clocking-wizard out") Link: https://lore.kernel.org/r/20221003202608.2611295-1-sboyd@kernel.org Signed-off-by: Stephen Boyd

clk: clocking-wizard: Use dev_err_probe() helper

2022-10-03T20:24:26+00:00

dev_err() can be replace with dev_err_probe() which will check if error code is -EPROBE_DEFER. Signed-off-by: Yang Yingliang Link: https://lore.kernel.org/r/20220913031442.980720-1-yangyingliang@huawei.com Signed-off-by: Stephen Boyd

clk: clocking-wizard: Update the compatible

2022-08-23T02:07:19+00:00

Update the compatible to indicate support for both 5.2 and 6.0 Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20220411100443.15132-6-shubhrajyoti.datta@xilinx.com Acked-by: Greg Kroah-Hartman Signed-off-by: Stephen Boyd

clk: clocking-wizard: Fix the reconfig for 5.2

2022-08-23T02:07:16+00:00

The 5.2 the reconfig is triggered by writing 7 followed by 2 to the reconfig reg. Add the same. Also 6.0 is backward compatible so it should be fine. Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20220411100443.15132-5-shubhrajyoti.datta@xilinx.com Acked-by: Greg Kroah-Hartman Signed-off-by: Stephen Boyd

clk: clocking-wizard: Rename nr-outputs to xlnx,nr-outputs

2022-08-23T02:07:13+00:00

Rename nr-outputs to xlnx,output. Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20220411100443.15132-4-shubhrajyoti.datta@xilinx.com Acked-by: Greg Kroah-Hartman Signed-off-by: Stephen Boyd

clk: clocking-wizard: Move clocking-wizard out

2022-08-23T02:07:10+00:00

Add clocking wizard driver to clk. And delete the driver from the staging as it is in drivers/clk. Signed-off-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/20220411100443.15132-3-shubhrajyoti.datta@xilinx.com Acked-by: Greg Kroah-Hartman Signed-off-by: Stephen Boyd

clk: xilinx: move xlnx_vcu clock driver from soc

2021-02-09T02:31:25+00:00

The xlnx_vcu driver is actually a clock controller driver which provides clocks that can be used by a driver for the encoder/decoder units. There is no reason to keep this driver in soc. Move the driver to clk. NOTE: The register mapping actually contains registers for AXI performance monitoring, but these are not used by the driver. Signed-off-by: Michael Tretter Acked-by: Michal Simek Link: https://lore.kernel.org/r/20210121071659.1226489-16-m.tretter@pengutronix.de Signed-off-by: Stephen Boyd