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2022-10-25clk: starfive: jh7100: Keep more clocks aliveEmil Renner Berthing1-18/+18
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
2022-10-24clk: bcm2835: Round UART input clock upIvan T. Ivanov1-2/+33
[ Upstream commit f690a4d7a8f66430662975511c86819dc9965bcc ] It was reported that RPi3[1] and RPi Zero 2W boards have issues with the Bluetooth. It turns out that when switching from initial to operation speed host and device no longer can talk each other because host uses incorrect UART baud rate. The UART driver used in this case is amba-pl011. Original fix, see below Github link[2], was inside pl011 module, but somehow it didn't look as the right place to fix. Beside that this original rounding function is not exactly perfect for all possible clock values. So I deiced to move the hack to the platform which actually need it. The UART clock is initialised to be as close to the requested frequency as possible without exceeding it. Now that there is a clock manager that returns the actual frequencies, an expected 48MHz clock is reported as 47999625. If the requested baud rate == requested clock/16, there is no headroom and the slight reduction in actual clock rate results in failure. If increasing a clock by less than 0.1% changes it from ..999.. to ..000.., round it up. [1] https://bugzilla.suse.com/show_bug.cgi?id=1188238 [2] https://github.com/raspberrypi/linux/commit/ab3f1b39537f6d3825b8873006fbe2fc5ff057b7 Cc: Phil Elwell <phil@raspberrypi.com> Signed-off-by: Ivan T. Ivanov <iivanov@suse.de> Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com> Link: https://lore.kernel.org/r/20220912081306.24662-1-iivanov@suse.de Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: bcm2835: Make peripheral PLLC criticalMaxime Ripard1-1/+1
[ Upstream commit 6c5422851d8be8c7451e968fd2e6da41b6109e17 ] When testing for a series affecting the VEC, it was discovered that turning off and on the VEC clock is crashing the system. It turns out that, when disabling the VEC clock, it's the only child of the PLLC-per clock which will also get disabled. The source of the crash is PLLC-per being disabled. It's likely that some other device might not take a clock reference that it actually needs, but it's unclear which at this point. Let's make PLLC-per critical so that we don't have that crash. Reported-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220926084509.12233-1-maxime@cerno.tech Reviewed-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: zynqmp: pll: rectify rate rounding in zynqmp_pll_round_rateQuanyang Wang1-16/+15
[ Upstream commit 30eaf02149ecc3c5815e45d27187bf09e925071d ] The function zynqmp_pll_round_rate is used to find a most appropriate PLL frequency which the hardware can generate according to the desired frequency. For example, if the desired frequency is 297MHz, considering the limited range from PS_PLL_VCO_MIN (1.5GHz) to PS_PLL_VCO_MAX (3.0GHz) of PLL, zynqmp_pll_round_rate should return 1.872GHz (297MHz * 5). There are two problems with the current code of zynqmp_pll_round_rate: 1) When the rate is below PS_PLL_VCO_MIN, it can't find a correct rate when the parameter "rate" is an integer multiple of *prate, in other words, if "f" is zero, zynqmp_pll_round_rate won't return a valid frequency which is from PS_PLL_VCO_MIN to PS_PLL_VCO_MAX. For example, *prate is 33MHz and the rate is 660MHz, zynqmp_pll_round_rate will not boost up rate and just return 660MHz, and this will cause clk_calc_new_rates failure since zynqmp_pll_round_rate returns an invalid rate out of its boundaries. 2) Even if the rate is higher than PS_PLL_VCO_MIN, there is still a risk that zynqmp_pll_round_rate returns an invalid rate because the function DIV_ROUND_CLOSEST makes some loss in the fractional part. If the parent clock *prate is 33333333Hz and we want to set the PLL rate to 1.5GHz, this function will return 1499999985Hz by using the formula below: value = *prate * DIV_ROUND_CLOSEST(rate, *prate)). This value is also invalid since it's slightly smaller than PS_PLL_VCO_MIN. because DIV_ROUND_CLOSEST makes some loss in the fractional part. Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com> Link: https://lore.kernel.org/r/20220826142030.213805-1-quanyang.wang@windriver.com Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: zynqmp: Fix stack-out-of-bounds in strncpy`Ian Nam1-0/+7
[ Upstream commit dd80fb2dbf1cd8751efbe4e53e54056f56a9b115 ] "BUG: KASAN: stack-out-of-bounds in strncpy+0x30/0x68" Linux-ATF interface is using 16 bytes of SMC payload. In case clock name is longer than 15 bytes, string terminated NULL character will not be received by Linux. Add explicit NULL character at last byte to fix issues when clock name is longer. This fixes below bug reported by KASAN: ================================================================== BUG: KASAN: stack-out-of-bounds in strncpy+0x30/0x68 Read of size 1 at addr ffff0008c89a7410 by task swapper/0/1 CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.4.0-00396-g81ef9e7-dirty #3 Hardware name: Xilinx Versal vck190 Eval board revA (QSPI) (DT) Call trace: dump_backtrace+0x0/0x1e8 show_stack+0x14/0x20 dump_stack+0xd4/0x108 print_address_description.isra.0+0xbc/0x37c __kasan_report+0x144/0x198 kasan_report+0xc/0x18 __asan_load1+0x5c/0x68 strncpy+0x30/0x68 zynqmp_clock_probe+0x238/0x7b8 platform_drv_probe+0x6c/0xc8 really_probe+0x14c/0x418 driver_probe_device+0x74/0x130 __device_attach_driver+0xc4/0xe8 bus_for_each_drv+0xec/0x150 __device_attach+0x160/0x1d8 device_initial_probe+0x10/0x18 bus_probe_device+0xe0/0xf0 device_add+0x528/0x950 of_device_add+0x5c/0x80 of_platform_device_create_pdata+0x120/0x168 of_platform_bus_create+0x244/0x4e0 of_platform_populate+0x50/0xe8 zynqmp_firmware_probe+0x370/0x3a8 platform_drv_probe+0x6c/0xc8 really_probe+0x14c/0x418 driver_probe_device+0x74/0x130 device_driver_attach+0x94/0xa0 __driver_attach+0x70/0x108 bus_for_each_dev+0xe4/0x158 driver_attach+0x30/0x40 bus_add_driver+0x21c/0x2b8 driver_register+0xbc/0x1d0 __platform_driver_register+0x7c/0x88 zynqmp_firmware_driver_init+0x1c/0x24 do_one_initcall+0xa4/0x234 kernel_init_freeable+0x1b0/0x24c kernel_init+0x10/0x110 ret_from_fork+0x10/0x18 The buggy address belongs to the page: page:ffff0008f9be1c88 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 raw: 0008d00000000000 ffff0008f9be1c90 ffff0008f9be1c90 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff page dumped because: kasan: bad access detected addr ffff0008c89a7410 is located in stack of task swapper/0/1 at offset 112 in frame: zynqmp_clock_probe+0x0/0x7b8 this frame has 3 objects: [32, 44) 'response' [64, 80) 'ret_payload' [96, 112) 'name' Memory state around the buggy address: ffff0008c89a7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0008c89a7380: 00 00 00 00 f1 f1 f1 f1 00 04 f2 f2 00 00 f2 f2 >ffff0008c89a7400: 00 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff0008c89a7480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0008c89a7500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Signed-off-by: Ian Nam <young.kwan.nam@xilinx.com> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Link: https://lore.kernel.org/r/20220510070154.29528-3-shubhrajyoti.datta@xilinx.com Acked-by: Michal Simek <michal.simek@amd.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: ast2600: BCLK comes from EPLLJoel Stanley1-1/+1
[ Upstream commit b8c1dc9c00b252b3be853720a71b05ed451ddd9f ] This correction was made in the u-boot SDK recently. There are no in-tree users of this clock so the impact is minimal. Fixes: d3d04f6c330a ("clk: Add support for AST2600 SoC") Link: https://github.com/AspeedTech-BMC/u-boot/commit/8ad54a5ae15f27fea5e894cc2539a20d90019717 Signed-off-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20220421040426.171256-1-joel@jms.id.au Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probeMiaoqian Lin1-3/+6
[ Upstream commit 9c59a01caba26ec06fefd6ca1f22d5fd1de57d63 ] pm_runtime_get_sync() will increment pm usage counter. Forgetting to putting operation will result in reference leak. Add missing pm_runtime_put_sync in some error paths. Fixes: 9ac33b0ce81f ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220602030838.52057-1-linmq006@gmail.com Reviewed-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: ti: Balance of_node_get() calls for of_find_node_by_name()Liang He1-2/+3
[ Upstream commit 058a3996b888ab60eb1857fb4fd28f1b89a9a95a ] In ti_find_clock_provider(), of_find_node_by_name() will call of_node_put() for the 'from' argument, possibly putting the node one too many times. Let's maintain the of_node_get() from the previous search and only put when we're exiting the function early. This should avoid a misbalanced reference count on the node. Fixes: 51f661ef9a10 ("clk: ti: Add ti_find_clock_provider() to use clock-output-names") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220915031121.4003589-1-windhl@126.com [sboyd@kernel.org: Rewrite commit text, maintain reference instead of get again] Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: imx: scu: fix memleak on platform_device_add() failsLin Yujun1-1/+5
[ Upstream commit 855ae87a2073ebf1b395e020de54fdf9ce7d166f ] No error handling is performed when platform_device_add() fails. Add error processing before return, and modified the return value. Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support") Signed-off-by: Lin Yujun <linyujun809@huawei.com> Link: https://lore.kernel.org/r/20220914033206.98046-1-linyujun809@huawei.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: bcm2835: fix bcm2835_clock_rate_from_divisor declarationStefan Wahren1-3/+3
[ Upstream commit 0b919a3728691c172312dee99ba654055ccd8c84 ] The return value of bcm2835_clock_rate_from_divisor is always unsigned and also all caller expect this. So fix the declaration accordingly. Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks") Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Link: https://lore.kernel.org/r/20220904141037.38816-1-stefan.wahren@i2se.com Reviewed-by: Ivan T. Ivanov <iivanov@suse.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: baikal-t1: Add SATA internal ref clock bufferSerge Semin3-1/+85
[ Upstream commit 081a9b7c74eae4e12b2cb1b86720f836a8f29247 ] It turns out the internal SATA reference clock signal will stay unavailable for the SATA interface consumer until the buffer on it's way is ungated. So aside with having the actual clock divider enabled we need to ungate a buffer placed on the signal way to the SATA controller (most likely some rudiment from the initial SoC release). Seeing the switch flag is placed in the same register as the SATA-ref clock divider at a non-standard ffset, let's implement it as a separate clock controller with the set-rate propagation to the parental clock divider wrapper. As such we'll be able to disable/enable and still change the original clock source rate. Fixes: 353afa3a8d2e ("clk: Add Baikal-T1 CCU Dividers driver") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20220929225402.9696-5-Sergey.Semin@baikalelectronics.ru Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: baikal-t1: Add shared xGMAC ref/ptp clocks internal parentSerge Semin3-3/+12
[ Upstream commit e2eef312762e0b5a5a70d29fe59a245c0a3cffa0 ] Baikal-T1 CCU reference manual says that both xGMAC reference and xGMAC PTP clocks are generated by two different wrappers with the same constant divider thus each producing a 156.25 MHz signal. But for some reason both of these clock sources are gated by a single switch-flag in the CCU registers space - CCU_SYS_XGMAC_BASE.BIT(0). In order to make the clocks handled independently we need to define a shared parental gate so the base clock signal would be switched off only if both of the child-clocks are disabled. Note the ID is intentionally set to -2 since we are going to add a one more internal clock identifier in the next commit. Fixes: 353afa3a8d2e ("clk: Add Baikal-T1 CCU Dividers driver") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20220929225402.9696-4-Sergey.Semin@baikalelectronics.ru Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: baikal-t1: Fix invalid xGMAC PTP clock dividerSerge Semin1-1/+1
[ Upstream commit 3c742088686ce922704aec5b11d09bcc5a396589 ] Most likely due to copy-paste mistake the divider has been set to 10 while according to the SoC reference manual it's supposed to be 8 thus having PTP clock frequency of 156.25 MHz. Fixes: 353afa3a8d2e ("clk: Add Baikal-T1 CCU Dividers driver") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20220929225402.9696-3-Sergey.Semin@baikalelectronics.ru Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: vc5: Fix 5P49V6901 outputs disabling when enabling FODSerge Semin1-1/+1
[ Upstream commit c388cc804016cf0f65afdc2362b120aa594ff3e6 ] We have discovered random glitches during the system boot up procedure. The problem investigation led us to the weird outcomes: when none of the Renesas 5P49V6901 ports are explicitly enabled by the kernel driver, the glitches disappeared. It was a mystery since the SoC external clock domains were fed with different 5P49V6901 outputs. The driver code didn't seem like bogus either. We almost despaired to find out a root cause when the solution has been found for a more modern revision of the chip. It turned out the 5P49V6901 clock generator stopped its output for a short period of time during the VC5_OUT_DIV_CONTROL register writing. The same problem was found for the 5P49V6965 revision of the chip and was successfully fixed in commit fc336ae622df ("clk: vc5: fix output disabling when enabling a FOD") by enabling the "bypass_sync" flag hidden inside "Unused Factory Reserved Register". Even though the 5P49V6901 registers description and programming guide doesn't provide any intel regarding that flag, setting it up anyway in the officially unused register completely eliminated the denoted glitches. Thus let's activate the functionality submitted in commit fc336ae622df ("clk: vc5: fix output disabling when enabling a FOD") for the Renesas 5P49V6901 chip too in order to remove the ports implicit inter-dependency. Fixes: dbf6b16f5683 ("clk: vc5: Add support for IDT VersaClock 5P49V6901") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20220929225402.9696-2-Sergey.Semin@baikalelectronics.ru Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: Migrate remaining clk_unregister_*() to clk_hw_unregister_*()Chen-Yu Tsai1-5/+5
[ Upstream commit fef14676fc4be40b8441745a3c96b7e7d7d8592d ] During the previous |struct clk| to |struct clk_hw| clk provider API migration in commit 6f691a586296 ("clk: mediatek: Switch to clk_hw provider APIs"), a few clk_unregister_*() calls were missed. Migrate the remaining ones to the |struct clk_hw| provider API, i.e. change clk_unregister_*() to clk_hw_unregister_*(). Fixes: 6f691a586296 ("clk: mediatek: Switch to clk_hw provider APIs") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220926102523.2367530-3-wenst@chromium.org Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: fix unregister function in mtk_clk_register_dividers cleanupChen-Yu Tsai1-1/+1
[ Upstream commit 20f7a0dba9075fb0e3d645495bc24d7025b58de1 ] When the cleanup paths for the various clk register APIs in the MediaTek clk library were added, the one in the dividers type used the wrong type of unregister function. This would result in incorrect dereferencing of the clk pointer and freeing of invalid pointers. Fix this by switching to the correct type of clk unregistration call. Fixes: 3c3ba2ab0226 ("clk: mediatek: mtk: Implement error handling in register APIs") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220926102523.2367530-2-wenst@chromium.org Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: clk-mt8195-mfg: Reparent mfg_bg3d and propagate rate changesAngeloGioacchino Del Regno1-2/+4
[ Upstream commit a5f7bf5458c2cf6730106e16a6373638a0e5ed1e ] The MFG_BG3D is a gate to enable/disable clock output to the GPU, but the actual output is decided by multiple muxes; in particular: mfg_ck_fast_ref muxes between "slow" (top_mfg_core_tmp) and "fast" (MFGPLL) clock, while top_mfg_core_tmp muxes between the 26MHz clock and various system PLLs. The clock gate comes after all the muxes, so its parent is mfg_ck_fast_reg, not top_mfg_core_tmp. Reparent MFG_BG3D to the latter to match the hardware and add the CLK_SET_RATE_PARENT flag to it: this way we ensure propagating rate changes that are requested on MFG_BG3D along its entire clock tree. Fixes: 35016f10c0e5 ("clk: mediatek: Add MT8195 mfgcfg clock support") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Link: https://lore.kernel.org/r/20220927101128.44758-6-angelogioacchino.delregno@collabora.com Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: mt8183: mfgcfg: Propagate rate changes to parentChen-Yu Tsai1-3/+3
[ Upstream commit 9f94f545f258b15bfa6357eb62e1e307b712851e ] The only clock in the MT8183 MFGCFG block feeds the GPU. Propagate its rate change requests to its parent, so that DVFS for the GPU can work properly. Fixes: acddfc2c261b ("clk: mediatek: Add MT8183 clock support") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220927101128.44758-3-angelogioacchino.delregno@collabora.com Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: qcom: gcc-sm6115: Override default Alpha PLL regsAdam Skladowski1-16/+30
[ Upstream commit 068a0605ef5a6b430e7278c169bfcd25b680b28f ] The DEFAULT and BRAMMO PLL offsets are non-standard in downstream, but currently only BRAMMO ones are overridden. Override DEFAULT ones too. A very similar thing is happening in gcc-qcm2290 driver. Fixes: cbe63bfdc54f ("clk: qcom: Add Global Clock controller (GCC) driver for SM6115") Signed-off-by: Adam Skladowski <a_skl39@protonmail.com> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220830075620.974009-2-iskren.chernev@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: qcom: apss-ipq6018: mark apcs_alias0_core_clk as criticalRobert Marko1-1/+1
[ Upstream commit 86e78995c93ee182433f965babfccd48417d4dcf ] While fixing up the driver I noticed that my IPQ8074 board was hanging after CPUFreq switched the frequency during boot, WDT would eventually reset it. So mark apcs_alias0_core_clk as critical since its the clock feeding the CPU cluster and must never be disabled. Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller") Signed-off-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-3-robimarko@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: qcom: sm6115: Select QCOM_GDSCDang Huynh1-0/+1
[ Upstream commit 50ee65dc512b9b5c4de354cf3b4dded34f46c571 ] While working on the Fxtec Pro1X device, this error shows up with my own minimal configuration: gcc-sm6115: probe of 1400000.clock-controller failed with error -38 The clock driver depends on CONFIG_QCOM_GDSC and after enabling that, the driver probes successfully. Signed-off-by: Dang Huynh <danct12@riseup.net> Fixes: cbe63bfdc54f ("clk: qcom: Add Global Clock controller (GCC) Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220910170207.1592220-1-danct12@riseup.net Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: mt8195-infra_ao: Set pwrmcu clocks as criticalAngeloGioacchino Del Regno1-3/+10
[ Upstream commit 3f10f49cd9f8ab6471639d4ca2c6db9451121779 ] The pwrmcu is responsible for power management and idle states in SSPM: on older SoCs this was managed in Linux drivers like sspm/mcupm/eemgpu but, at least on MT8195, this functionality was transferred to the ATF firmware. For this reason, turning off the pwrmcu related clocks from the kernel will lead to unability to resume the platform after suspend and other currently unknown PM related side-effects. Set the PWRMCU and PWRMCU_BUS_H clocks as critical to prevent the kernel from turning them off, fixing the aforementioned issue. Fixes: e2edf59dec0b ("clk: mediatek: Add MT8195 infrastructure clock support") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220719093316.37253-1-angelogioacchino.delregno@collabora.com Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: clk-mt8195-vdo1: Reparent and set rate on vdo1_dpintf's parentAngeloGioacchino Del Regno1-1/+5
[ Upstream commit f24d71feb206631116ff9adaa6d43650c5dd8849 ] Like it was done for the vdo0_dp_intf0_dp_intf clock (used for eDP), add the CLK_SET_RATE_PARENT flag to CLK_VDO1_DPINTF (used for DP) and also fix its parent clock name as it has to be "top_dp" for two reasons: - This is its real parent! - Likewise to eDP/VDO0 counterpart, we need clock source selection on CLK_TOP_DP. Fixes: 269987505ba9 ("clk: mediatek: Add MT8195 vdosys1 clock support") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Reviewed-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20220816193257.658487-3-nfraprado@collabora.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: mediatek: clk-mt8195-vdo0: Set rate on vdo0_dp_intf0_dp_intf's parentAngeloGioacchino Del Regno1-1/+6
[ Upstream commit 3f0dadd230cc2630202a977fe52cd1dd7a7579a7 ] Add the CLK_SET_RATE_PARENT flag to the CLK_VDO0_DP_INTF0_DP_INTF clock: this is required to trigger clock source selection on CLK_TOP_EDP, while avoiding to manage the enablement of the former separately from the latter in the displayport driver. Fixes: 70282c90d4a2 ("clk: mediatek: Add MT8195 vdosys0 clock support") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Reviewed-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20220816193257.658487-2-nfraprado@collabora.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: qcom: gcc-sdm660: Use floor ops for SDCC1 clockMarijn Suijten1-1/+1
[ Upstream commit 6956c18f4ad9200aa945f7ea37d65a05afc49d51 ] In commit 3f905469c8ce ("clk: qcom: gcc: Use floor ops for SDCC clocks") floor ops were applied to SDCC2 only, but flooring is also required on the SDCC1 apps clock which is used by the eMMC card on Sony's Nile platform, and otherwise result in the typicial "Card appears overclocked" warnings observed on many other platforms before: mmc0: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz mmc0: Card appears overclocked; req 52000000 Hz, actual 100000000 Hz mmc0: Card appears overclocked; req 104000000 Hz, actual 192000000 Hz Fixes: f2a76a2955c0 ("clk: qcom: Add Global Clock controller (GCC) driver for SDM660") Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Tested-by: Alexey Minnekhanov <alexeymin@postmarketos.org> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220714203822.186448-1-marijn.suijten@somainline.org Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: samsung: exynosautov9: correct register offsets of peric0/c1Chanho Park1-10/+10
[ Upstream commit 67d98943408bce835185688cb75ebbb45b91e572 ] Some register offsets of peric0 and peric1 cmu blocks need to be corrected and re-ordered by numerical order. Fixes: f2dd366992d0 ("clk: samsung: exynosautov9: add cmu_peric0 clock support") Fixes: b35f27fe73d8 ("clk: samsung: exynosautov9: add cmu_peric1 clock support") Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220727021357.152421-4-chanho61.park@samsung.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: tegra20: Fix refcount leak in tegra20_clock_initMiaoqian Lin1-0/+1
[ Upstream commit 4e343bafe03ff68a62f48f8235cf98f2c685468b ] of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: 37c26a906527 ("clk: tegra: add clock support for Tegra20") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220523152811.19692-1-linmq006@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: tegra: Fix refcount leak in tegra114_clock_initMiaoqian Lin1-0/+1
[ Upstream commit db16a80c76ea395766913082b1e3f939dde29b2c ] of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: 2cb5efefd6f7 ("clk: tegra: Implement clocks for Tegra114") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220523143834.7587-1-linmq006@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: tegra: Fix refcount leak in tegra210_clock_initMiaoqian Lin1-0/+1
[ Upstream commit 56c78cb1f00a9dde8cd762131ce8f4c5eb046fbb ] of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: 6b301a059eb2 ("clk: tegra: Add support for Tegra210 clocks") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220523142608.65074-1-linmq006@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: sprd: Hold reference returned by of_get_parent()Liang He1-4/+5
[ Upstream commit 91e6455bf715fb1558a0bf8f645ec1c131254a3c ] We should hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Fixes: f95e8c7923d1 ("clk: sprd: support to get regmap from parent node") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220704004729.272481-1-windhl@126.com Reviewed-by: Orson Zhai <orsonzhai@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: berlin: Add of_node_put() for of_get_parent()Liang He2-2/+9
[ Upstream commit 37c381b812dcbfde9c3f1f3d3e75fdfc1b40d5bc ] In berlin2_clock_setup() and berlin2q_clock_setup(), we need to call of_node_put() for the reference returned by of_get_parent() which has increased the refcount. We should call *_put() in fail path or when it is not used anymore. Fixes: 26b3b6b959b2 ("clk: berlin: prepare simple-mfd conversion") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220708084900.311684-1-windhl@126.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: qoriq: Hold reference returned by of_get_parent()Liang He1-2/+8
[ Upstream commit a8ea4273bc26256ce3cce83164f0f51c5bf6e127 ] In legacy_init_clockgen(), we need to hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Beside, in create_sysclk(), we need to call of_node_put() on 'sysclk' also for refcount balance. Fixes: 0dfc86b3173f ("clk: qoriq: Move chip-specific knowledge into driver") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220628143851.171299-1-windhl@126.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: oxnas: Hold reference returned by of_get_parent()Liang He1-2/+4
[ Upstream commit 1d6aa08c54cd0e005210ab8e3b1e92ede70f8a4f ] In oxnas_stdclk_probe(), we need to hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Fixes: 0bbd72b4c64f ("clk: Add Oxford Semiconductor OXNAS Standard Clocks") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220628143155.170550-1-windhl@126.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: st: Hold reference returned by of_get_parent()Liang He2-2/+8
[ Upstream commit 429973306f860470cbbb8402c8c53143b450faba ] We should hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Fixes: 3efe64ef5186 ("clk: st: clkgen-fsyn: search reg within node or parent") Fixes: 810251b0d36a ("clk: st: clkgen-mux: search reg within node or parent") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220628142416.169808-1-windhl@126.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-24clk: meson: Hold reference returned by of_get_parent()Liang He3-3/+12
[ Upstream commit 89ab396d712f7c91fe94f55cff23460426f5fc81 ] We should hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance. Fixes: 88e2da81241e ("clk: meson: aoclk: refactor common code into dedicated file") Fixes: 6682bd4d443f ("clk: meson: factorise meson64 peripheral clock controller drivers") Fixes: bb6eddd1d28c ("clk: meson: meson8b: use the HHI syscon if available") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220628141038.168383-1-windhl@126.com Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-12Revert "clk: ti: Stop using legacy clkctrl names for omap4 and 5"Sasha Levin3-185/+189
This reverts commit 67c830a6de835a36b4e19fe4d968dbaf8dc4e9c6. Which was upstream commit 255584b138343d4a28c6d25bd82d04b09460d672. Reported as causing boot failures. Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: imx93: drop of_match_ptrPeng Fan1-1/+1
[ Upstream commit daaa2fbe678efdaced53d1c635f4d326751addf8 ] There is build warning when CONFIG_OF is not selected. >> drivers/clk/imx/clk-imx93.c:324:34: warning: 'imx93_clk_of_match' >> defined but not used [-Wunused-const-variable=] 324 | static const struct of_device_id imx93_clk_of_match[] = { | ^~~~~~~~~~~~~~~~~~ The driver only support DT table, no sense to use of_match_ptr. Fixes: 24defbe194b6 ("clk: imx: add i.MX93 clk") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220830033137.4149542-3-peng.fan@oss.nxp.com Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: iproc: Do not rely on node name for correct PLL setupFlorian Fainelli1-4/+8
[ Upstream commit 1b24a132eba7a1c19475ba2510ec1c00af3ff914 ] After commit 31fd9b79dc58 ("ARM: dts: BCM5301X: update CRU block description") a warning from clk-iproc-pll.c was generated due to a duplicate PLL name as well as the console stopped working. Upon closer inspection it became clear that iproc_pll_clk_setup() used the Device Tree node unit name as an unique identifier as well as a parent name to parent all clocks under the PLL. BCM5301X was the first platform on which that got noticed because of the DT node unit name renaming but the same assumptions hold true for any user of the iproc_pll_clk_setup() function. The first 'clock-output-names' property is always guaranteed to be unique as well as providing the actual desired PLL clock name, so we utilize that to register the PLL and as a parent name of all children clock. Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20220905161504.1526-1-f.fainelli@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: imx: imx6sx: remove the SET_RATE_PARENT flag for QSPI clocksHan Xu1-2/+2
[ Upstream commit b1ff1bfe81e763420afd5f3f25f0b3cbfd97055c ] There is no dedicate parent clock for QSPI so SET_RATE_PARENT flag should not be used. For instance, the default parent clock for QSPI is pll2_bus, which is also the parent clock for quite a few modules, such as MMDC, once GPMI NAND set clock rate for EDO5 mode can cause system hang due to pll2_bus rate changed. Fixes: f1541e15e38e ("clk: imx6sx: Switch to clk_hw based API") Signed-off-by: Han Xu <han.xu@nxp.com> Link: https://lore.kernel.org/r/20220915150959.3646702-1-han.xu@nxp.com Tested-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Abel Vesa <abel.vesa@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: microchip: mpfs: make the rtc's ahb clock criticalConor Dooley1-1/+3
[ Upstream commit 05d27090b6dc88bce71a608d1271536e582b73d1 ] The onboard RTC's AHB bus clock must be kept running as the RTC will stop & lose track of time if the AHB interface clock is disabled. Fixes: 635e5e73370e ("clk: microchip: Add driver for Microchip PolarFire SoC") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220909123123.2699583-3-conor.dooley@microchip.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: microchip: mpfs: fix clk_cfg array bounds violationConor Dooley1-1/+6
[ Upstream commit 5da39ac5d648cdbfdfa8bea0e0cde279ded5c7c2 ] There is an array bounds violation present during clock registration, triggered by current code by only specific toolchains. This seems to fail gracefully in v6.0-rc1, using a toolchain build from the riscv- gnu-toolchain repo and with clang-15, and life carries on. While converting the driver to use standard clock structs/ops, kernel panics were seen during boot when built with clang-15: [ 0.581754] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b1 [ 0.591520] Oops [#1] [ 0.594045] Modules linked in: [ 0.597435] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.0.0-rc1-00011-g8e1459cf4eca #1 [ 0.606188] Hardware name: Microchip PolarFire-SoC Icicle Kit (DT) [ 0.613012] epc : __clk_register+0x4a6/0x85c [ 0.617759] ra : __clk_register+0x49e/0x85c [ 0.622489] epc : ffffffff803faf7c ra : ffffffff803faf74 sp : ffffffc80400b720 [ 0.630466] gp : ffffffff810e93f8 tp : ffffffe77fe60000 t0 : ffffffe77ffb3800 [ 0.638443] t1 : 000000000000000a t2 : ffffffffffffffff s0 : ffffffc80400b7c0 [ 0.646420] s1 : 0000000000000001 a0 : 0000000000000001 a1 : 0000000000000000 [ 0.654396] a2 : 0000000000000001 a3 : 0000000000000000 a4 : 0000000000000000 [ 0.662373] a5 : ffffffff803a5810 a6 : 0000000200000022 a7 : 0000000000000006 [ 0.670350] s2 : ffffffff81099d48 s3 : ffffffff80d6e28e s4 : 0000000000000028 [ 0.678327] s5 : ffffffff810ed3c8 s6 : ffffffff810ed3d0 s7 : ffffffe77ffbc100 [ 0.686304] s8 : ffffffe77ffb1540 s9 : ffffffe77ffb1540 s10: 0000000000000008 [ 0.694281] s11: 0000000000000000 t3 : 00000000000000c6 t4 : 0000000000000007 [ 0.702258] t5 : ffffffff810c78c0 t6 : ffffffe77ff88cd0 [ 0.708125] status: 0000000200000120 badaddr: 00000000000000b1 cause: 000000000000000d [ 0.716869] [<ffffffff803fb892>] devm_clk_hw_register+0x62/0xaa [ 0.723420] [<ffffffff80403412>] mpfs_clk_probe+0x1e0/0x244 In v6.0-rc1 and later, this issue is visible without the follow on patches doing the conversion using toolchains provided by our Yocto meta layer too. It fails on "clk_periph_timer" - which uses a different parent, that it tries to find using the macro: \#define PARENT_CLK(PARENT) (&mpfs_cfg_clks[CLK_##PARENT].cfg.hw) If parent is RTCREF, so the macro becomes: &mpfs_cfg_clks[33].cfg.hw which is well beyond the end of the array. Amazingly, builds with GCC 11.1 see no problem here, booting correctly and hooking the parent up etc. Builds with clang-15 do not, with the above panic. Change the macro to use specific offsets depending on the parent rather than the dt-binding's clock IDs. Fixes: 1c6a7ea32b8c ("clk: microchip: mpfs: add RTCREF clock control") CC: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220909123123.2699583-2-conor.dooley@microchip.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-05clk: ingenic-tcu: Properly enable registers before accessing timersAidan MacDonald1-10/+5
commit 6726d552a6912e88cf63fe2bda87b2efa0efc7d0 upstream. Access to registers is guarded by ingenic_tcu_{enable,disable}_regs() so the stop bit can be cleared before accessing a timer channel, but those functions did not clear the stop bit on SoCs with a global TCU clock gate. Testing on the X1000 has revealed that the stop bits must be cleared _and_ the global TCU clock must be ungated to access timer registers. This appears to be the norm on Ingenic SoCs, and is specified in the documentation for the X1000 and numerous JZ47xx SoCs. If the stop bit isn't cleared, register writes don't take effect and the system can be left in a broken state, eg. the watchdog timer may not run. The bug probably went unnoticed because stop bits are zeroed when the SoC is reset, and the kernel does not set them unless a timer gets disabled at runtime. However, it is possible that a bootloader or a previous kernel (if using kexec) leaves the stop bits set and we should not rely on them being cleared. Fixing this is easy: have ingenic_tcu_{enable,disable}_regs() always clear the stop bit, regardless of the presence of a global TCU gate. Reviewed-by: Paul Cercueil <paul@crapouillou.net> Tested-by: Paul Cercueil <paul@crapouillou.net> Fixes: 4f89e4b8f121 ("clk: ingenic: Add driver for the TCU clocks") Cc: stable@vger.kernel.org Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com> Link: https://lore.kernel.org/r/20220617122254.738900-1-aidanmacdonald.0x0@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-08clk: bcm: rpi: Add missing newlineStefan Wahren1-3/+3
[ Upstream commit 13b5cf8d6a0d4a5d289e1ed046cadc63b416db85 ] Some log messages lacks the final newline. So add them. Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks") Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Link: https://lore.kernel.org/r/20220713154953.3336-3-stefan.wahren@i2se.com Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Ivan T. Ivanov <iivanov@suse.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08clk: bcm: rpi: Prevent out-of-bounds accessStefan Wahren1-1/+6
[ Upstream commit bc163555603e4ae9c817675ad80d618a4cdbfa2d ] The while loop in raspberrypi_discover_clocks() relies on the assumption that the id of the last clock element is zero. Because this data comes from the Videocore firmware and it doesn't guarantuee such a behavior this could lead to out-of-bounds access. So fix this by providing a sentinel element. Fixes: 93d2725affd6 ("clk: bcm: rpi: Discover the firmware clocks") Link: https://github.com/raspberrypi/firmware/issues/1688 Suggested-by: Phil Elwell <phil@raspberrypi.com> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Link: https://lore.kernel.org/r/20220713154953.3336-2-stefan.wahren@i2se.com Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Ivan T. Ivanov <iivanov@suse.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08clk: bcm: rpi: Fix error handling of raspberrypi_fw_get_rateStefan Wahren1-1/+1
[ Upstream commit 35f73cca1cecda0c1f8bb7d8be4ce5cd2d46ae8c ] The function raspberrypi_fw_get_rate (e.g. used for the recalc_rate hook) can fail to get the clock rate from the firmware. In this case we cannot return a signed error value, which would be casted to unsigned long. Fix this by returning 0 instead. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Link: https://lore.kernel.org/r/20220625083643.4012-1-stefan.wahren@i2se.com Fixes: 4e85e535e6cc ("clk: bcm283x: add driver interfacing with Raspberry Pi's firmware") Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08clk: core: Fix runtime PM sequence in clk_core_unprepare()Chen-Yu Tsai1-2/+1
[ Upstream commit 4b592061f7b3971c70e8b72fc42aaead47c24701 ] In the original commit 9a34b45397e5 ("clk: Add support for runtime PM"), the commit message mentioned that pm_runtime_put_sync() would be done at the end of clk_core_unprepare(). This mirrors the operations in clk_core_prepare() in the opposite order. However, the actual code that was added wasn't in the order the commit message described. Move clk_pm_runtime_put() to the end of clk_core_unprepare() so that it is in the correct order. Fixes: 9a34b45397e5 ("clk: Add support for runtime PM") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20220822081424.1310926-3-wenst@chromium.org Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08Revert "clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops"Stephen Boyd1-28/+0
[ Upstream commit abb5f3f4b1f5f0ad50eb067a00051d3587dec9fb ] This reverts commit 35b0fac808b95eea1212f8860baf6ad25b88b087. Alexander reports that it causes boot failures on i.MX8M Plus based boards (specifically imx8mp-tqma8mpql-mba8mpxl.dts). Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com> Cc: Chen-Yu Tsai <wenst@chromium.org> Fixes: 35b0fac808b9 ("clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops") Link: https://lore.kernel.org/r/12115951.O9o76ZdvQC@steina-w Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20220831175326.2523912-1-sboyd@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate opsChen-Yu Tsai1-0/+28
[ Upstream commit 35b0fac808b95eea1212f8860baf6ad25b88b087 ] In the previous commits that added CLK_OPS_PARENT_ENABLE, support for this flag was only added to rate change operations (rate setting and reparent) and disabling unused subtree. It was not added to the clock gate related operations. Any hardware driver that needs it for these operations will either see bogus results, or worse, hang. This has been seen on MT8192 and MT8195, where the imp_ii2_* clk drivers set this, but dumping debugfs clk_summary would cause it to hang. Fixes: fc8726a2c021 ("clk: core: support clocks which requires parents enable (part 2)") Fixes: a4b3518d146f ("clk: core: support clocks which requires parents enable (part 1)") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20220822081424.1310926-2-wenst@chromium.org Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-08clk: ti: Fix missing of_node_get() ti_find_clock_provider()Tony Lindgren1-0/+1
[ Upstream commit 26f2da0d2f823dc7180b0505d46318f64d1e0a7a ] For ti_find_clock_provider() we want to return the np with refcount incremented. However we are missing of_node_get() for the clock-output-names case that causes refcount warnings. Fixes: 51f661ef9a10 ("clk: ti: Add ti_find_clock_provider() to use clock-output-names") Signed-off-by: Tony Lindgren <tony@atomide.com> Link: https://lore.kernel.org/r/20220621091118.33930-1-tony@atomide.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-25clk: qcom: clk-alpha-pll: fix clk_trion_pll_configure descriptionVladimir Zapolskiy1-1/+1
[ Upstream commit 94bed9bb05c7850ff5d80b87cc29004901f37956 ] After merging lucid and trion pll functions in commit 0b01489475c6 ("clk: qcom: clk-alpha-pll: same regs and ops for trion and lucid") the function clk_trion_pll_configure() is left with an old description header, which results in a W=2 compile time warning, fix it. Acked-by: Stephen Boyd <sboyd@kernel.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220701062711.2757855-1-vladimir.zapolskiy@linaro.org Signed-off-by: Sasha Levin <sashal@kernel.org>