Jon Hunter 0649c3232b clk: tegra: Fix warning caused by pll_u failing to lock ... If the pll_u is not configured by the bootloader, then on kernel boot the following warning is seen: clk_pll_wait_for_lock: Timed out waiting for pll pll_u_vco lock tegra_init_from_table: Failed to enable pll_u_out1 ------------[ cut here ]------------ WARNING: at drivers/clk/tegra/clk.c:269 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-rc4-next-20151214+ #1 Hardware name: NVIDIA Tegra210 P2371 reference board (E.1) (DT) task: ffffffc0bc0a0000 ti: ffffffc0bc0a8000 task.ti: ffffffc0bc0a8000 PC is at tegra_init_from_table+0x140/0x164 LR is at tegra_init_from_table+0x140/0x164 pc : [<ffffffc0008fee78>] lr : [<ffffffc0008fee78>] pstate: 80000045 sp : ffffffc0bc0abd50 x29: ffffffc0bc0abd50 x28: ffffffc00090b8a8 x27: ffffffc000a06000 x26: ffffffc0bc019780 x25: ffffffc00086a708 x24: ffffffc00086a790 x23: ffffffc0006d7188 x22: ffffffc0bc010000 x21: 000000000000016e x20: ffffffc0bc00d100 x19: ffffffc000944178 x18: 0000000000000007 x17: 000000000000000e x16: 0000000000000001 x15: 0000000000000007 x14: 000000000000000e x13: 0000000000000013 x12: 000000000000001a x11: 000000000000004d x10: 0000000000000750 x9 : ffffffc0bc0a8000 x8 : ffffffc0bc0a07b0 x7 : 0000000000000001 x6 : 0000000002d5f0f8 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : ffffffc000996724 x1 : 0000000000000000 x0 : 0000000000000032 ---[ end trace cbd20ae519e92ced ]--- Call trace: [<ffffffc0008fee78>] tegra_init_from_table+0x140/0x164 [<ffffffc000900ac8>] tegra210_clock_apply_init_table+0x20/0x28 [<ffffffc0008fec40>] tegra_clocks_apply_init_table+0x18/0x24 [<ffffffc00008291c>] do_one_initcall+0x90/0x194 [<ffffffc0008cfab0>] kernel_init_freeable+0x148/0x1e8 [<ffffffc000636bb0>] kernel_init+0x10/0xdc [<ffffffc000085cd0>] ret_from_fork+0x10/0x40 clk_pll_wait_for_lock: Timed out waiting for pll pll_u_vco lock tegra_init_from_table: Failed to enable pll_u_out2 ------------[ cut here ]------------ pll_u can be either controlled by software or hardware and this is selected via the OVERRIDE bit in the pll_u base register. In the function tegra210_pll_init(), the OVERRIDE bit for pll_u is cleared, which selects hardware control of the pll. However, at the same time the pll_u clocks are populated in the init_table for tegra210 and so software will try to configure the pll_u if it is not already configured and hence, the above warning is seen when the pll fails to lock. Remove the pll_u clocks from the init_table so that software does not try to configure this pll on boot. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>		2016-02-02 15:49:31 +01:00
..
at91	clk: at91: Revert "keep slow clk enabled to prevent system hang"	2015-11-20 10:53:12 -08:00
bcm	Merge branch 'clk-bcm2835' into clk-next	2015-12-24 20:39:02 -08:00
berlin	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
h8300	h8300: unaligned divcr register support.	2015-11-08 22:44:37 +09:00
hisilicon	clk: Remove unneeded semicolons	2015-09-17 11:15:14 -07:00
imx	Merge commit 'fe5fa8fbd4d47f40a45fa29ee1abdb10cb061ec2' into clk-next	2015-12-22 11:57:35 -08:00
ingenic
keystone	clk: keystone: fix a trivial typo	2015-10-19 15:29:09 -07:00
mediatek	clk: mediatek: Add USB clock support in MT8173 APMIXEDSYS	2015-10-01 12:06:00 +08:00
meson
mmp	clk: mmp: stop using platform headers	2015-12-01 21:44:22 +01:00
mvebu	clk: add Dove PLL divider support for GPU, VMeta and AXI clocks	2015-12-22 12:25:00 -08:00
mxs	clk:mxs: Fix bug on frequency divider	2015-10-01 15:24:34 -07:00
nxp	clk: lpc32xx: add common clock framework driver	2015-12-24 12:31:26 -08:00
pistachio	clk: pistachio: correct critical clock list	2015-08-26 11:34:43 -07:00
pxa	ARM: pxa: make more mach/*.h files local	2015-12-01 21:52:50 +01:00
qcom	Merge branch 'clk-msm8996' into clk-next	2015-12-01 00:00:48 -08:00
rockchip	Merge branch 'clk-rockchip' into clk-next	2016-01-02 13:41:09 -08:00
samsung	ARM: DT updates for v4.5	2016-01-20 18:16:29 -08:00
shmobile	Merge branch 'clk-renesas' into clk-next	2015-12-31 15:17:39 -08:00
sirf	clk: atlas7: fix noc/socket disconnect/reconnect for unit clks	2015-09-29 08:27:14 -07:00
socfpga	clk: socfpga: Add a second parent option for the dbg_base_clk	2015-08-24 16:49:03 -07:00
spear	The clk framework changes for 4.3 are mostly updates to existing drivers	2015-08-31 17:26:48 -07:00
st	clk: st: avoid uninitialized variable use	2015-11-20 10:59:26 -08:00
sunxi	Allwinner clocks changes for 4.5	2015-12-23 23:23:18 -08:00
tegra	clk: tegra: Fix warning caused by pll_u failing to lock	2016-02-02 15:49:31 +01:00
ti	ARM: SoC non-urgent fixes for v4.5	2016-01-20 17:44:16 -08:00
ux500	clk/ARM: move Ux500 PRCC bases to the device tree	2015-08-24 16:49:14 -07:00
versatile	ARM: SoC multiplatform code changes for v4.5	2016-01-20 18:03:56 -08:00
x86
zte
zynq	ARM: SoC platform updates for v4.3	2015-09-01 12:18:40 -07:00
clk-asm9260.c
clk-axi-clkgen.c
clk-axm5516.c
clk-cdce706.c	clk: Convert __clk_get_flags() to clk_hw_get_flags()	2015-08-24 16:48:44 -07:00
clk-cdce925.c
clk-clps711x.c
clk-composite.c	clk: Convert basic types to clk_hw based provider APIs	2015-08-24 16:48:48 -07:00
clk-conf.c
clk-cs2000-cp.c	clk: add CS2000 Fractional-N driver	2015-11-30 16:33:38 -08:00
clk-devres.c
clk-divider.c	clk: divider: Cap table divider values to 'width' member	2015-11-30 18:24:20 -08:00
clk-efm32gg.c
clk-fixed-factor.c	clk: Convert basic types to clk_hw based provider APIs	2015-08-24 16:48:48 -07:00
clk-fixed-rate.c
clk-fractional-divider.c	clk: fractional-divider: switch to rational best approximation	2015-10-02 11:29:48 -07:00
clk-gate.c
clk-gpio.c	clk: fix clk-gpio.c with optional clock= DT property	2016-01-02 23:19:50 -08:00
clk-highbank.c
clk-ls1x.c
clk-max-gen.c
clk-max-gen.h
clk-max77686.c
clk-max77802.c	clk: max77802: Update MODULE_AUTHOR() email address	2015-10-14 11:31:55 -07:00
clk-mb86s7x.c
clk-moxart.c
clk-multiplier.c	clk: Remove clk_{register,unregister}_multiplier()	2015-10-23 13:34:46 -07:00
clk-mux.c	clk: fix codying style of if ... else blocks	2015-12-22 10:11:52 -08:00
clk-nomadik.c
clk-nspire.c
clk-palmas.c
clk-pwm.c
clk-qoriq.c	clk: qoriq: fix memory leak	2015-11-30 13:00:54 -08:00
clk-rk808.c
clk-s2mps11.c
clk-scpi.c	clk: scpi: add missing of_node_put	2015-11-30 16:29:15 -08:00
clk-si514.c	Add driver for the si514 clock generator chip	2015-10-08 23:52:55 -07:00
clk-si570.c
clk-si5351.c	clk: si5351: Add PLL soft reset	2015-11-20 10:40:37 -08:00
clk-si5351.h
clk-stm32f4.c	clk: stm32f4: Convert to clk_hw based provider APIs	2015-08-24 16:48:51 -07:00
clk-tango4.c	clk: tango4: clkgen driver for Tango4 platforms	2015-11-16 11:07:06 -08:00
clk-twl6040.c
clk-u300.c
clk-vt8500.c
clk-wm831x.c
clk-xgene.c	clk: xgene: Fix divider with non-zero shift value	2015-11-20 10:49:14 -08:00
clk.c	Merge branch 'clk-rockchip' into clk-next	2015-12-23 13:08:56 -08:00
clk.h
clkdev.c	clkdev: fix clk_add_alias() with a NULL alias device name	2015-10-20 17:24:08 +01:00
Kconfig	clk: remove duplicated COMMON_CLK_NXP record from clk/Kconfig	2016-01-13 18:09:52 -08:00
Makefile	Merge branch 'clk-lpc32xx' into clk-next	2015-12-24 12:34:29 -08:00