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linux/drivers/clk/imx
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Anson Huang 2d4e6ce22c clk: imx: Fix division by zero warning on pfdv2 
[ Upstream commit 28b2f82e0383e27476be8a5e13d2aea07ebeb275 ]

Fix below division by zero warning:

[    3.176443] Division by zero in kernel.
[    3.181809] CPU: 0 PID: 88 Comm: kworker/0:2 Not tainted 5.3.0-rc2-next-20190730-63758-ge08da51-dirty #124
[    3.191817] Hardware name: Freescale i.MX7ULP (Device Tree)
[    3.197821] Workqueue: events dbs_work_handler
[    3.202849] [<c01127d8>] (unwind_backtrace) from [<c010cd80>] (show_stack+0x10/0x14)
[    3.211058] [<c010cd80>] (show_stack) from [<c0c77e68>] (dump_stack+0xd8/0x110)
[    3.218820] [<c0c77e68>] (dump_stack) from [<c0c753c0>] (Ldiv0_64+0x8/0x18)
[    3.226263] [<c0c753c0>] (Ldiv0_64) from [<c05984b4>] (clk_pfdv2_set_rate+0x54/0xac)
[    3.234487] [<c05984b4>] (clk_pfdv2_set_rate) from [<c059192c>] (clk_change_rate+0x1a4/0x698)
[    3.243468] [<c059192c>] (clk_change_rate) from [<c0591a08>] (clk_change_rate+0x280/0x698)
[    3.252180] [<c0591a08>] (clk_change_rate) from [<c0591fc0>] (clk_core_set_rate_nolock+0x1a0/0x278)
[    3.261679] [<c0591fc0>] (clk_core_set_rate_nolock) from [<c05920c8>] (clk_set_rate+0x30/0x64)
[    3.270743] [<c05920c8>] (clk_set_rate) from [<c089cb88>] (imx7ulp_set_target+0x184/0x2a4)
[    3.279501] [<c089cb88>] (imx7ulp_set_target) from [<c0896358>] (__cpufreq_driver_target+0x188/0x514)
[    3.289196] [<c0896358>] (__cpufreq_driver_target) from [<c0899b0c>] (od_dbs_update+0x130/0x15c)
[    3.298438] [<c0899b0c>] (od_dbs_update) from [<c089a5d0>] (dbs_work_handler+0x2c/0x5c)
[    3.306914] [<c089a5d0>] (dbs_work_handler) from [<c0156858>] (process_one_work+0x2ac/0x704)
[    3.315826] [<c0156858>] (process_one_work) from [<c0156cdc>] (worker_thread+0x2c/0x574)
[    3.324404] [<c0156cdc>] (worker_thread) from [<c015cfe8>] (kthread+0x134/0x148)
[    3.332278] [<c015cfe8>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
[    3.339858] Exception stack(0xe82d5fb0 to 0xe82d5ff8)
[    3.345314] 5fa0:                                     00000000 00000000 00000000 00000000
[    3.353926] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    3.362519] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:40 +02:00
..
clk-busy.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-composite-7ulp.c
clk: imx: add imx7ulp composite clk support
2018-12-03 11:31:36 -08:00
clk-composite-8m.c
clk: imx: clk-composite-8m: add lock to gate/mux
2019-12-31 16:46:14 +01:00
clk-cpu.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-divider-gate.c
clk: core: replace clk_{readl,writel} with {readl,writel}
2019-04-23 10:57:49 -07:00
clk-fixup-div.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-fixup-mux.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-frac-pll.c
clk: Remove io.h from clk-provider.h
2019-05-15 13:21:37 -07:00
clk-gate2.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-gate-exclusive.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx1.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336
2019-06-05 17:37:07 +02:00
clk-imx5.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
clk-imx6q.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx6sl.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx6sll.c
Merge branches 'clk-rpi-cpufreq', 'clk-tegra', 'clk-simplify-provider.h', 'clk-sprd' and 'clk-at91' into clk-next
2019-07-12 11:11:30 -07:00
clk-imx6sx.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx6ul.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx7d.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-imx7ulp.c
clk: imx7ulp: Correct DDR clock mux options
2020-01-23 08:23:00 +01:00
clk-imx8mm.c
clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
2019-10-28 02:45:37 -07:00
clk-imx8mn.c
clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
2019-10-28 02:45:37 -07:00
clk-imx8mq.c
clk: imx8mq: Fix sys3 pll references
2019-08-19 13:54:18 +02:00
clk-imx8qxp-lpcg.c
clk: imx8: Add DSP related clocks
2019-08-03 09:16:02 +02:00
clk-imx8qxp-lpcg.h
clk: imx: add imx8qxp lpcg driver
2018-12-14 13:01:14 -08:00
clk-imx8qxp.c
clk: imx: scu: add fallback compatible string support
2019-02-21 12:41:16 -08:00
clk-imx21.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
clk-imx25.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1
2019-05-21 11:28:39 +02:00
clk-imx27.c
clk: Remove io.h from clk-provider.h
2019-05-15 13:21:37 -07:00
clk-imx31.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21
2019-05-21 11:28:47 +02:00
clk-imx35.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
clk-lpcg-scu.c
clk: imx: add lpcg clock support
2018-12-14 13:00:51 -08:00
clk-pfd.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-pfdv2.c
clk: imx: Fix division by zero warning on pfdv2
2020-10-01 13:17:40 +02:00
clk-pll14xx.c
clk: imx: pll14xx: Fix quick switch of S/K parameter
2020-01-17 19:48:49 +01:00
clk-pllv1.c
We have two changes to the core framework this time around. The first being a
2017-11-17 20:04:24 -08:00
clk-pllv2.c
clk: imx: pllv2: avoid using uninitialized values
2018-03-16 15:40:41 -07:00
clk-pllv3.c
This round of clk driver and framework updates is heavy on the driver update
2019-07-17 10:07:48 -07:00
clk-pllv4.c
clk: Remove io.h from clk-provider.h
2019-05-15 13:21:37 -07:00
clk-sccg-pll.c
clk: Remove io.h from clk-provider.h
2019-05-15 13:21:37 -07:00
clk-scu.c
clk: imx: Align imx sc clock parent msg structs to 4
2020-04-02 15:11:02 +02:00
clk-scu.h
clk: imx: scu: add set parent support
2019-02-21 12:41:16 -08:00
clk-vf610.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
clk.c
clk: imx: Add API for clk unregister when driver probe fail
2019-08-03 09:16:01 +02:00
clk.h
clk: imx: Add correct failure handling for clk based helpers
2020-02-24 08:36:34 +01:00
Kconfig
clk: imx: Add support for i.MX8MN clock driver
2019-08-03 09:16:02 +02:00
Makefile
clk: imx: Add support for i.MX8MN clock driver
2019-08-03 09:16:02 +02:00