linux

iv/linux

History

Jerome Brunet ca5e089a32 clk: use round rate to bail out early in set_rate

The current implementation of clk_core_set_rate_nolock() bails out early
if the requested rate is exactly the same as the one set. It should bail
out if the request would not result in a rate a change. This is important
when the rate is not exactly what is requested, which is fairly common
with PLLs.

Ex: provider able to give any rate with steps of 100Hz
 - 1st consumer request 48000Hz and gets it.
 - 2nd consumer request 48010Hz as well. If we were to perform the usual
   mechanism, we would get 48000Hz as well. The clock would not change so
   there is no point performing any checks to make sure the clock can
   change, we know it won't.

This is important to prepare the addition of the clock protection
mechanism

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20171201215200.23523-6-jbrunet@baylibre.com

2017-12-19 16:17:46 -08:00

at91

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

axis

clk: axis: Use new macro CLK_OF_DECLARE_DRIVER

2016-08-12 18:00:37 -07:00

axs10x

clk: axs10x: introduce AXS10X pll driver

2017-07-17 11:50:59 -07:00

bcm

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

berlin

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

h8300

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hisilicon

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

imgtec

Update MIPS email addresses

2017-11-03 09:02:30 -07:00

imx

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

ingenic

Update MIPS email addresses

2017-11-03 09:02:30 -07:00

keystone

clk: keystone: sci-clk: Fix sci_clk_get

2017-08-02 18:37:26 -07:00

loongson1

CLK: Add Loongson1C clock support

2016-09-23 14:49:21 -07:00

mediatek

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

meson

clk: meson: gxbb: Add VPU and VAPB clocks data

2017-10-20 10:34:49 +02:00

microchip

clk: microchip: Initialize SOSC clock rate for PIC32MZDA.

2016-08-24 16:05:24 -07:00

mmp

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

mvebu

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mxs

clk: mxs: make clk_ops const

2017-11-01 23:25:43 -07:00

nxp

clk: nxp: clk-lpc32xx: rename clk_gate_is_enabled()

2017-08-31 18:35:44 -07:00

pistachio

…

pxa

clk: pxa: fix building on older compilers

2017-11-14 15:55:53 -08:00

qcom

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

renesas

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

rockchip

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

samsung

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

sirf

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

socfpga

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

spear

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sunxi

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

sunxi-ng

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

tegra

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

uniphier

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

ux500

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

versatile

We have two changes to the core framework this time around. The first being a

2017-11-17 20:04:24 -08:00

x86

clk: x86: Do not gate clocks enabled by the firmware

2017-07-18 16:23:13 -07:00

zte

clk: zte: constify clk_div_table

2017-08-30 22:30:30 -07:00

zynq

clk: zynq: Remove CLK_IS_ROOT

2016-03-02 17:48:26 -08:00

clk-asm9260.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

clk-axi-clkgen.c

clk: axi-clkgen: Migrate to clk_hw based OF and registration APIs

2016-08-24 16:10:31 -07:00

clk-axm5516.c

clk: axm5516: Migrate to clk_hw based OF and registration APIs

2016-08-24 16:11:07 -07:00

clk-bulk.c

clk: Export clk_bulk_prepare()

2017-09-29 14:17:17 -07:00

clk-cdce706.c

clk: cdce: Migrate to clk_hw based OF and registration APIs

2016-08-24 16:12:38 -07:00

clk-cdce925.c

clk: cdce925: remove redundant check for non-null parent_name

2017-11-13 17:44:15 -08:00

clk-clps711x.c

clk: clps711x: Migrate to clk_hw based OF and registration APIs

2016-08-24 17:19:26 -07:00

clk-composite.c

Merge branch 'clk-hw-register' (early part) into clk-next

2016-04-21 14:47:18 -07:00

clk-conf.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

clk-cs2000-cp.c

clk: cs2000: Add cs2000_set_saved_rate

2017-08-31 11:32:32 -07:00

clk-devres.c

clk: add managed version of clk_bulk_get

2017-06-02 15:37:49 -07:00

clk-divider.c

clk: Don't write error code into divider register

2017-08-31 18:43:38 -07:00

clk-efm32gg.c

clk: efm32gg: Pass correct type to hw provider registration

2016-11-16 11:08:55 -08:00

clk-fixed-factor.c

clk: fixed-factor: Remove export symbol on setup function

2016-08-15 15:08:03 -07:00

clk-fixed-rate.c

clk: fixed-rate: Remove export symbol on setup function

2016-08-15 15:08:06 -07:00

clk-fractional-divider.c

clk: fractional-divider: allow overriding of approximation

2017-08-08 17:39:48 +02:00

clk-gate.c

clk: gate: expose clk_gate_ops::is_enabled

2017-08-31 18:35:45 -07:00

clk-gemini.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

clk-gpio.c

clk: clk-gpio: Request GPIO descriptor as LOW

2017-11-02 01:20:40 -07:00

clk-hi655x.c

clk: hi6220: Add the hi655x's pmic clock

2017-04-21 19:18:53 -07:00

clk-highbank.c

clk: highbank: Migrate to clk_hw based registration and OF APIs

2016-06-30 12:25:28 -07:00

clk-hsdk-pll.c

ARC: clk: fix spelling mistake: "configurarion" -> "configuration"

2017-11-13 17:44:26 -08:00

clk-max77686.c

clk: max77686: fix number of clocks setup for clk_hw based registration

2016-10-17 15:31:59 -07:00

clk-moxart.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

clk-multiplier.c

clk: multiplier: Prevent the multiplier from under / over flowing

2016-06-20 13:00:00 -07:00

clk-mux.c

clk: clk-mux: Improve a size determination in clk_hw_register_mux_table()

2017-11-13 17:28:39 -08:00

clk-nomadik.c

clk: nomadik: Delete error messages for a failed memory allocation in two functions

2017-04-21 19:47:14 -07:00

clk-nspire.c

clk: nspire: Migrate to clk_hw based OF and registration APIs

2016-08-24 17:23:21 -07:00

clk-oxnas.c

clk: oxnas: Add OX820 Gate clocks

2016-10-23 10:18:45 -07:00

clk-palmas.c

clk: palmas: undo preparation of a clock source.

2017-06-02 10:51:34 -07:00

clk-pwm.c

clk: pwm: Migrate to clk_hw based OF and registration APIs

2016-08-24 17:23:27 -07:00

clk-qoriq.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

clk-rk808.c

clk: rk808: Pass the right pointer as the get_hw context

2016-09-09 11:07:07 -07:00

clk-s2mps11.c

clk: s2mps11: Migrate to clk_hw based OF and registration APIs

2016-06-30 12:29:14 -07:00

clk-scpi.c

clk: scpi: error when clock fails to register

2017-06-29 18:47:35 -07:00

clk-si514.c

clk: si514: Migrate to clk_hw based OF and registration APIs

2016-08-24 17:29:59 -07:00

clk-si570.c

clk: si570: Migrate to clk_hw based OF and registration APIs

2016-08-24 17:30:01 -07:00

clk-si5351.c

clk: si5351: fix PLL reset

2017-09-01 16:00:54 -07:00

clk-si5351.h

…

clk-stm32f4.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

clk-stm32h7.c

clk: stm32h7: fix test of clock config

2017-11-14 17:06:49 -08:00

clk-tango4.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

clk-twl6040.c

clk: make clk_init_data const

2017-11-01 23:25:51 -07:00

clk-u300.c

clk: clk-u300: Fix a typo in two comment lines

2017-11-13 17:39:43 -08:00

clk-versaclock5.c

clk: vc5: Add support for IDT VersaClock 5P49V5925

2017-07-17 11:51:00 -07:00

clk-vt8500.c

clk: vt8500: Migrate to clk_hw based registration APIs

2016-08-24 17:35:48 -07:00

clk-wm831x.c

clk: make clk_init_data const

2017-11-01 23:25:51 -07:00

clk-xgene.c

clk: clk-xgene: Adjust six checks for null pointers

2017-11-13 17:40:03 -08:00

clk.c

clk: use round rate to bail out early in set_rate

2017-12-19 16:17:46 -08:00

clk.h

…

clkdev.c

clk: Convert to using %pOF instead of full_name

2017-07-21 15:49:54 -07:00

Kconfig

clk: Kconfig: Name RK805 in Kconfig for COMMON_CLK_RK808

2017-08-31 16:20:12 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00