Commit Graph

21 Commits

Author SHA1 Message Date
Thomas Gleixner
1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
Weiyi Lu
23fe31dedb clk: mediatek: Add configurable pcw_chg_reg to mtk_pll_data
In previous MediaTek PLL design, it assumes the pcw change control
is always on the CON1 register.
However, the pcw change bit on MT8183 was moved onto CON0 because
the the PCW length of audio PLLs are extended to 32-bit.
Add configurable pcw_chg_reg to set the pcw change control register
address or using the default control register CON1 if without
setting in pll data.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Reviewed-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 13:20:16 -07:00
Owen Chen
9d7e1a82b7 clk: mediatek: Add configurable pcwibits and fmin to mtk_pll_data
1. pcwibits: The integer bits of pcw for PLLs is extend to 8 bits,
   add a variable to indicate this change and
   backward-compatible.

2. fmin: The PLL frequency lower-bound is vary from 1GHz to
   1.5GHz, add a variable to indicate platform-dependent.

Signed-off-by: Owen Chen <owen.chen@mediatek.com>
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Reviewed-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 13:13:08 -07:00
Stephen Boyd
efb1e0b071 Merge branches 'clk-ingenic', 'clk-mtk-mux', 'clk-qcom-sdm845-pcie', 'clk-mtk-crit' and 'clk-mtk' into clk-next
* clk-ingenic:
  clk: ingenic: Remove set but not used variable 'enable'
  clk: ingenic: Fix doc of ingenic_cgu_div_info
  clk: ingenic: Fix round_rate misbehaving with non-integer dividers
  clk: ingenic: jz4740: Fix gating of UDC clock

* clk-mtk-mux:
  clk: mediatek: using CLK_MUX_ROUND_CLOSEST for the clock of dpi1_sel
  clk: mediatek: add MUX_GATE_FLAGS_2

* clk-qcom-sdm845-pcie:
  clk: qcom: gcc-sdm845: Define parent of PCIe PIPE clocks

* clk-mtk-crit:
  clk: mediatek: Mark bus and DRAM related clocks as critical
  clk: mediatek: Add flags to mtk_gate
  clk: mediatek: Add MUX_FLAGS macro

* clk-mtk:
  clk: mediatek: correct cpu clock name for MT8173 SoC
2019-03-08 10:29:30 -08:00
Jasper Mattsson
5a1cc4c27a clk: mediatek: Add flags to mtk_gate
This is required to mark gates as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Acked-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26 09:53:39 -08:00
Jasper Mattsson
03c4fda603 clk: mediatek: Add MUX_FLAGS macro
This is required to mark outputs of certain MUXes as CLK_IS_CRITICAL.

Signed-off-by: Jasper Mattsson <jasu@njomotys.info>
Acked-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-26 09:53:30 -08:00
chunhui dai
b026a7eca1 clk: mediatek: add MUX_GATE_FLAGS_2
Add MUX_GATE_FLAGS_2 for the clock which needs to set two falgs.
Such as some mux need to set the flags of "CLK_MUX_ROUND_CLOSEST".

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: wangyan wang <wangyan.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-25 09:19:32 -08:00
Sean Wang
bc27360b3c clk: mediatek: adjust dependency of reset.c to avoid unexpectedly being built
Changes from v1->v2:
Add 'select RESET_CONTROLLER' under COMMON_CLK_MEDIATEK and enable
reset.c to be built when COMMON_CLK_MEDIATEK is selected. That should
be quite reasonable because the reset controller is tightly embedded
inside and exported from these clock subsystems. At least it can be found
on infracfg and pericfg subsystem that both are really fundamental block
lots of devices must depend on.

commit 74cb0d6dde ("clk: mediatek: fixup test-building of MediaTek clock
drivers") can let the build system looking into the directory where the
clock drivers resides and then allow test-building the drivers.

But the change also gives rise to certain incorrect behavior which is
reset.c being built even not depending on either COMPILE_TEST or
ARCH_MEDIATEK alternative dependency. To get rid of reset.c being built
unexpectedly on the other platforms, it would be a good change that the
file should be built depending on its own specific configuration rather
than just on generic RESET_CONTROLLER one.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2018-01-10 13:41:15 -08:00
Sean Wang
5589818b2f clk: mediatek: Fix all warnings for missing struct clk_onecell_data
Even though the header file linux/clk-provider.h is already being properly
included in clk-mtk.h, the definition of struct clk_onecell_data still
must depend on CONFIG_COMMON_CLK defined and thus it's possible that
below build warnings occur when CONFIG_COMMON_CLK is not being selected.

Therefore, these functions which need struct clk_onecell_data without
declaring that structure first requires simply declaring that this struct
exists prior to referencing it in clk-mtk.h

Changes from v1->v2:
enhance v1 based on two useful solutions Jean Delvare kindly suggested.

All warnings (new ones prefixed by >>):

In file included from drivers/clk/mediatek/reset.c:22:0:
>>drivers/clk/mediatek/clk-mtk.h:44:19: warning: 'struct clk_onecell_data'
declared inside parameter list will not be visible outside of
this definition or declaration
  int num, struct clk_onecell_data *clk_data);
		  ^~~~~~~~~~~~~~~~
drivers/clk/mediatek/clk-mtk.h:63:19: warning: 'struct clk_onecell_data'
declared inside parameter list will not be visible outside of
this definition or declaration
  int num, struct clk_onecell_data *clk_data);
		  ^~~~~~~~~~~~~~~~
drivers/clk/mediatek/clk-mtk.h:145:10: warning: 'struct clk_onecell_data'
declared inside parameter list will not be visible outside of
this definition or declaration
  struct clk_onecell_data *clk_data);
	 ^~~~~~~~~~~~~~~~
drivers/clk/mediatek/clk-mtk.h:164:11: warning: 'struct clk_onecell_data'
declared inside parameter list will not be visible outside of
this definition or declaration
   struct clk_onecell_data *clk_data);
	  ^~~~~~~~~~~~~~~~
drivers/clk/mediatek/clk-mtk.h:190:12: warning: 'struct clk_onecell_data'
declared inside parameter list will not be visible outside of this
definition or declaration
    struct clk_onecell_data *clk_data);
	   ^~~~~~~~~~~~~~~~

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Cc: kbuild-all@01.org
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-12-26 17:15:36 -08:00
Chen Zhong
c955bf3998 clk: mediatek: add the option for determining PLL source clock
Since the previous setup always sets the PLL using crystal 26MHz, this
doesn't always happen in every MediaTek platform. So the patch added
flexibility for assigning extra member for determining the PLL source
clock.

Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 01:07:51 -07:00
weiyi.lu@mediatek.com
e2f744a82d clk: mediatek: Add MT2712 clock support
Add MT2712 clock support, include topckgen, apmixedsys,
infracfg, pericfg, mcucfg and subsystem clocks.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
[sboyd@codeaurora.org: Static on top_clk_data]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 01:02:53 -07:00
Shunli Wang
e986211827 clk: mediatek: Add MT2701 clock support
Add MT2701 clock support, include topckgen, apmixedsys,
infracfg, pericfg and subsystem clocks.

Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Tested-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-08 15:59:49 -08:00
Philipp Zabel
06445994fe clk: mediatek: make dpi0_sel propagate rate changes
This mux is supposed to select a fitting divider after the PLL
is already set to the correct rate.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: James Liao <jamesjj.liao@mediatek.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2016-05-06 17:47:39 +02:00
James Liao
cdb2bab78a clk: mediatek: Add USB clock support in MT8173 APMIXEDSYS
Add REF2USB_TX clock support into MT8173 APMIXEDSYS. This clock
is needed by USB 3.0.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
2015-10-01 12:06:00 +08:00
James Liao
4fa043806a clk: mediatek: Add fixed clocks support for Mediatek SoC.
This patch adds fixed clocks support by using CCF fixed-rate
clock implementation.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
2015-10-01 12:04:49 +08:00
James Liao
07d130698b clk: mediatek: Remove unused code from MT8173.
Remove unused header files from MT8173, and remove unused
keywords from function declaration.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
2015-10-01 12:04:49 +08:00
Stephen Boyd
9cfad9bc47 Merge branch 'cleanup-clk-h-includes' into clk-next
* cleanup-clk-h-includes: (62 commits)
  clk: Remove clk.h from clk-provider.h
  clk: h8300: Remove clk.h and clkdev.h includes
  clk: at91: Include clk.h and slab.h
  clk: ti: Switch clk-provider.h include to clk.h
  clk: pistachio: Include clk.h
  clk: ingenic: Include clk.h
  clk: si570: Include clk.h
  clk: moxart: Include clk.h
  clk: cdce925: Include clk.h
  clk: Include clk.h in clk.c
  clk: zynq: Include clk.h
  clk: ti: Include clk.h
  clk: sunxi: Include clk.h and remove unused clkdev.h includes
  clk: st: Include clk.h
  clk: qcom: Include clk.h
  clk: highbank: Include clk.h
  clk: bcm: Include clk.h
  clk: versatile: Remove clk.h and clkdev.h includes
  clk: ux500: Remove clk.h and clkdev.h includes
  clk: tegra: Properly include clk.h
  ...
2015-07-28 11:59:09 -07:00
James Liao
75ce0cdb62 clk: mediatek: Add MT8173 MMPLL change rate support
MT8173 MMPLL frequency settings are different from common PLLs.
It needs different post divider settings for some ranges of frequency.
This patch add support for MT8173 MMPLL frequency setting by adding
div-rate table to lookup suitable post divider setting under a
specified frequency.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-28 11:58:57 -07:00
Stephen Boyd
c726639bbe clk: mediatek: Properly include clk.h
We don't need to include clk.h in header files, just forward
declare struct clk here. This leads us to a few places where the
include of clk.h was missing in C files. Add them.

Cc: James Liao <jamesjj.liao@mediatek.com>
Cc: Henry Chen <henryc.chen@mediatek.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:53:09 -07:00
Sascha Hauer
d633fb7ac1 clk: mediatek: Add reset controller support
The pericfg and infracfg units also provide reset lines to several
other SoC internal units. This adds a function which can be called
from the pericfg and infracfg initialization functions which will
register the reset controller using reset_controller_register. The
reset controller will provide support for resetting the units
connected to the pericfg and infracfg controller. The units resetted
by this controller can use the standard reset device tree binding
to gain access to the reset lines.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:33 -07:00
James Liao
9741b1a680 clk: mediatek: Add initial common clock support for Mediatek SoCs.
This patch adds common clock support for Mediatek SoCs, including plls,
muxes and clock gates.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[sboyd@codeaurora.org: Squelch checkpatch warning in clk-mtk.h]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05 22:50:31 -07:00