Chen-Yu Tsai 831a2d8de1 clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled() ... [ Upstream commit 79200d5851c8e7179f68a4a6f162d8f1bde4986f ] 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. Prepare parent on prepare and enable parent on enable dependencies are already handled automatically by the core as part of its sequencing. Whether the case for "enable parent on prepare" should be supported by this flag or not is not clear, and thus ignored for now. This change solely fixes the handling of clk_core_is_enabled, i.e. enabling the parent clock when reading the hardware state. Unfortunately clk_core_is_enabled is called in a variety of places, sometimes with the enable clock already held. To avoid deadlocking, the core will ignore readouts and just return false if CLK_OPS_PARENT_ENABLE is set but the parent isn't currently enabled. Fixes: fc8726a2c0 ("clk: core: support clocks which requires parents enable (part 2)") Fixes: a4b3518d14 ("clk: core: support clocks which requires parents enable (part 1)") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Link: https://lore.kernel.org/r/20230103092330.494102-1-wenst@chromium.org Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-03-11 16:39:44 +01:00
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actions	clk: actions: Terminate clk_div_table with sentinel element	2022-04-08 14:40:26 +02:00
analogbits	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
at91	ARM: at91: rm9200: fix usb device clock id	2022-12-08 11:23:54 +01:00
axis	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
axs10x	clk: axs10x: use devm_platform_ioremap_resource() to simplify code	2019-10-16 16:17:50 -07:00
baikal-t1	clk: baikal-t1: Add SATA internal ref clock buffer	2022-10-26 13:25:39 +02:00
bcm	clk: bcm2835: Make peripheral PLLC critical	2022-10-26 13:25:54 +02:00
berlin	clk: berlin: Add of_node_put() for of_get_parent()	2022-10-26 13:25:31 +02:00
davinci	This pull request contains zero diff to the core framework. It is a collection	2020-10-22 12:53:28 -07:00
h8300	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
hisilicon	Merge branches 'clk-hisi', 'clk-amlogic', 'clk-samsung', 'clk-renesas' and 'clk-imx' into clk-next	2019-11-27 08:14:17 -08:00
imgtec	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
imx	clk: imx: avoid memory leak	2023-03-11 16:39:42 +01:00
ingenic	clk: ingenic-tcu: Properly enable registers before accessing timers	2022-10-05 10:38:38 +02:00
keystone	treewide: Change list_sort to use const pointers	2021-09-30 10:11:04 +02:00
loongson1	clk: loongson1: Terminate clk_div_table with sentinel element	2022-04-08 14:40:26 +02:00
mediatek	clk: mediatek: mt8183: mfgcfg: Propagate rate changes to parent	2022-10-26 13:25:39 +02:00
meson	clk: meson: Hold reference returned by of_get_parent()	2022-10-26 13:25:31 +02:00
microchip	clk: let init callback return an error code	2019-12-23 18:53:13 -08:00
mmp	clk: mmp2: fix build without CONFIG_PM	2021-02-03 23:28:44 +01:00
mvebu	clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths	2021-11-18 14:04:14 +01:00
mxs	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159	2019-05-30 11:26:37 -07:00
nxp	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159	2019-05-30 11:26:37 -07:00
pistachio	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422	2019-06-05 17:37:15 +02:00
pxa	clk: pxa: Constify static struct clk_ops	2020-10-13 19:49:11 -07:00
qcom	clk: qcom: gpucc-sdm845: fix clk_dis_wait being programmed for CX GDSC	2023-03-11 16:39:43 +01:00
renesas	clk: renesas: cpg-mssr: Remove superfluous check in resume code	2023-03-11 16:39:42 +01:00
rockchip	clk: rockchip: Fix memory leak in rockchip_clk_register_pll()	2023-01-14 10:15:31 +01:00
samsung	clk: samsung: Fix memory leak in _samsung_clk_register_pll()	2023-01-14 10:15:40 +01:00
sifive	clk: sifive: allocate sufficient memory for struct __prci_data	2020-06-25 15:04:13 -07:00
sirf	clk: clk-prima2: fix return value check in prima2_clk_init()	2020-10-13 19:54:30 -07:00
socfpga	clk: socfpga: Fix memory leak in socfpga_gate_init()	2023-01-14 10:15:42 +01:00
spear	clk: spear: Remove uninitialized_var() usage	2020-07-16 12:32:26 -07:00
sprd	clk: sprd: Hold reference returned by of_get_parent()	2022-10-26 13:25:31 +02:00
st	clk: st: Fix memory leak in st_of_quadfs_setup()	2023-01-14 10:16:19 +01:00
sunxi	clk: sunxi: sun9i-mmc: check return value after calling platform_get_resource()	2022-05-09 09:05:04 +02:00
sunxi-ng	clk: sunxi-ng: h6: Fix clock divider range on some clocks	2021-03-04 11:37:58 +01:00
tegra	clk: tegra20: Fix refcount leak in tegra20_clock_init	2022-10-26 13:25:32 +02:00
ti	clk: ti: dra7-atl: Fix reference leak in of_dra7_atl_clk_probe	2022-10-26 13:25:40 +02:00
uniphier	clk: uniphier: Fix fixed-rate initialization	2022-04-08 14:39:50 +02:00
ux500	clk: ux500: Fix up the SGA clock for some variants	2020-01-04 23:27:15 -08:00
versatile	clk: versatile: Add of_node_put() before return statement	2020-09-10 00:57:42 -07:00
x86	clk: mxl: syscon_node_to_regmap() returns error pointers	2023-02-25 11:55:02 +01:00
zte	clk: zx296718: Don't reference clk_init_data after registration	2019-08-16 10:20:15 -07:00
zynq	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 401	2019-06-05 17:37:13 +02:00
zynqmp	clk: zynqmp: pll: rectify rate rounding in zynqmp_pll_round_rate	2022-10-26 13:25:52 +02:00
clk-asm9260.c	clk: asm9260: fix __clk_hw_register_fixed_rate_with_accuracy typo	2020-04-13 12:20:06 -07:00
clk-aspeed.c	clk: aspeed: Add RMII RCLK gates for both AST2500 MACs	2019-11-26 10:02:48 -08:00
clk-aspeed.h	clk: aspeed: Move structures to header	2019-09-06 15:17:02 -07:00
clk-ast2600.c	clk: ast2600: BCLK comes from EPLL	2022-10-26 13:25:40 +02:00
clk-axi-clkgen.c	clk: axi-clkgen: Set power bits for fractional mode	2020-10-13 19:44:40 -07:00
clk-axm5516.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
clk-bd718x7.c	clk: bd718x7: Support ROHM BD71828 clk block	2020-01-24 07:22:47 +00:00
clk-bm1880.c	clk: bm1880: remove kfrees on static allocations	2022-01-27 10:54:09 +01:00
clk-bulk.c	clk: Make clk_bulk_get_all() return a valid "id"	2019-09-17 13:26:31 -07:00
clk-cdce706.c	Replace HTTP links with HTTPS ones: Common CLK framework	2020-07-10 17:15:34 -07:00
clk-cdce925.c	clk: clk-cdce925: Add regulator support	2019-09-06 10:31:16 -07:00
clk-clps711x.c	clk: clps711x: Terminate clk_div_table with sentinel element	2022-04-08 14:40:26 +02:00
clk-composite.c	clk: composite: Export clk_hw_register_composite()	2020-08-22 12:38:06 +08:00
clk-conf.c
clk-cs2000-cp.c
clk-devres.c	clk: Fix pointer casting to prevent oops in devm_clk_release()	2023-02-01 08:23:27 +01:00
clk-divider.c	clk: divider: fix initialization with parent_hw	2021-03-04 11:38:06 +01:00
clk-efm32gg.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
clk-fixed-factor.c	clk: fixed: add missing kerneldoc	2020-09-22 12:44:14 -07:00
clk-fixed-mmio.c	clk: Remove io.h from clk-provider.h	2019-05-15 13:21:37 -07:00
clk-fixed-rate.c	clk: fixed: add missing kerneldoc	2020-09-22 12:44:14 -07:00
clk-fractional-divider.c	clk: Remove io.h from clk-provider.h	2019-05-15 13:21:37 -07:00
clk-fsl-sai.c	clk: fsl-sai: fix memory leak	2020-12-30 11:53:42 +01:00
clk-gate.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
clk-gemini.c
clk-gpio.c	Replace HTTP links with HTTPS ones: Common CLK framework	2020-07-10 17:15:34 -07:00
clk-hi655x.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288	2019-06-05 17:36:37 +02:00
clk-highbank.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
clk-hsdk-pll.c	CLK: HSDK: CGU: add support for 148.5MHz clock	2020-05-28 21:06:39 -07:00
clk-lochnagar.c	clk: lochnagar: Don't reference clk_init_data after registration	2019-08-16 10:20:07 -07:00
clk-max9485.c
clk-max77686.c	clk: clk-max77686: Clean clkdev lookup leak and use devm	2019-02-06 10:35:03 -08:00
clk-milbeaut.c	clk: milbeaut: Don't reference clk_init_data after registration	2019-08-16 10:20:15 -07:00
clk-moxart.c
clk-multiplier.c	clk: Remove io.h from clk-provider.h	2019-05-15 13:21:37 -07:00
clk-mux.c	clk: mux: Add support for specifying parents via DT/pointers	2020-01-06 23:10:05 -08:00
clk-nomadik.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194	2019-05-30 11:29:22 -07:00
clk-npcm7xx.c
clk-nspire.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
clk-oxnas.c	clk: oxnas: Hold reference returned by of_get_parent()	2022-10-26 13:25:31 +02:00
clk-palmas.c
clk-plldig.c	clk: ls1028a: fix a dereference of pointer 'parent' before a null check	2020-02-03 23:03:49 -08:00
clk-pwm.c	clk: pwm: Use 64-bit division function	2020-06-17 20:42:10 +02:00
clk-qoriq.c	clk: qoriq: Hold reference returned by of_get_parent()	2022-10-26 13:25:31 +02:00
clk-rk808.c	- Core Frameworks	2019-07-15 20:18:40 -07:00
clk-s2mps11.c	clk: s2mps11: Fix a resource leak in error handling paths in the probe function	2020-12-30 11:54:01 +01:00
clk-scmi.c	clk: scmi: Fix min and max rate when registering clocks with discrete rates	2020-07-13 09:40:21 +01:00
clk-scpi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
clk-si514.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
clk-si544.c	clk: clk-si544: Implement small frequency change support	2019-06-27 13:45:38 -07:00
clk-si570.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
clk-si5341.c	clk: si5341: fix reported clk_rate when output divider is 2	2022-04-13 21:01:01 +02:00
clk-si5351.c	Replace HTTP links with HTTPS ones: Common CLK framework	2020-07-10 17:15:34 -07:00
clk-si5351.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
clk-sparx5.c	clk: sparx5: Add Sparx5 SoC DPLL clock driver	2020-07-28 18:17:56 -07:00
clk-stm32f4.c	clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after system enter shell	2022-01-27 10:54:07 +01:00
clk-stm32h7.c
clk-stm32mp1.c	clk: stm32mp1: Add ddrperfm clock	2019-04-29 11:13:23 -07:00
clk-tango4.c
clk-twl6040.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336	2019-06-05 17:37:07 +02:00
clk-u300.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194	2019-05-30 11:29:22 -07:00
clk-versaclock5.c	clk: vc5: Fix 5P49V6901 outputs disabling when enabling FOD	2022-10-26 13:25:39 +02:00
clk-vt8500.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
clk-wm831x.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
clk-xgene.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
clk.c	clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled()	2023-03-11 16:39:44 +01:00
clk.h	clk: consoldiate the __clk_get_hw() declarations	2019-07-12 11:00:14 -07:00
clkdev.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Kconfig	Merge branches 'clk-ingenic', 'clk-at91', 'clk-kconfig', 'clk-imx', 'clk-qcom', 'clk-prima2' and 'clk-bcm' into clk-next	2020-10-20 11:47:07 -07:00
Makefile	clk: sparx5: Add Sparx5 SoC DPLL clock driver	2020-07-28 18:17:56 -07:00