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Thomas Gleixner 8b9844d7e8 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21 
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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version 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 you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 2 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.615184352@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-21 11:28:47 +02:00
Thomas Gleixner 1621633323 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 
Based on 2 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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version 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 you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  51 franklin street fifth floor boston ma 02110 1301 usa

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option [no]_[pad]_[ctrl] any later version 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 you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 51 franklin street fifth floor boston ma
  02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 176 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-21 11:28:39 +02:00
Stephen Boyd 62e59c4e69 clk: Remove io.h from clk-provider.h 
Now that we've gotten rid of clk_readl() we can remove io.h from the
clk-provider header and push out the io.h include to any code that isn't
already including the io.h header but using things like readl/writel,
etc.

Found with this grep:

  git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \
  	xargs git grep -l \
	-e '\<__iowrite32_copy\>' --or \
	-e '\<__ioread32_copy\>' --or \
	-e '\<__iowrite64_copy\>' --or \
	-e '\<ioremap_page_range\>' --or \
	-e '\<ioremap_huge_init\>' --or \
	-e '\<arch_ioremap_pud_supported\>' --or \
	-e '\<arch_ioremap_pmd_supported\>' --or \
	-e '\<devm_ioport_map\>' --or \
	-e '\<devm_ioport_unmap\>' --or \
	-e '\<IOMEM_ERR_PTR\>' --or \
	-e '\<devm_ioremap\>' --or \
	-e '\<devm_ioremap_nocache\>' --or \
	-e '\<devm_ioremap_wc\>' --or \
	-e '\<devm_iounmap\>' --or \
	-e '\<devm_ioremap_release\>' --or \
	-e '\<devm_memremap\>' --or \
	-e '\<devm_memunmap\>' --or \
	-e '\<__devm_memremap_pages\>' --or \
	-e '\<pci_remap_cfgspace\>' --or \
	-e '\<arch_has_dev_port\>' --or \
	-e '\<arch_phys_wc_add\>' --or \
	-e '\<arch_phys_wc_del\>' --or \
	-e '\<memremap\>' --or \
	-e '\<memunmap\>' --or \
	-e '\<arch_io_reserve_memtype_wc\>' --or \
	-e '\<arch_io_free_memtype_wc\>' --or \
	-e '\<__io_aw\>' --or \
	-e '\<__io_pbw\>' --or \
	-e '\<__io_paw\>' --or \
	-e '\<__io_pbr\>' --or \
	-e '\<__io_par\>' --or \
	-e '\<__raw_readb\>' --or \
	-e '\<__raw_readw\>' --or \
	-e '\<__raw_readl\>' --or \
	-e '\<__raw_readq\>' --or \
	-e '\<__raw_writeb\>' --or \
	-e '\<__raw_writew\>' --or \
	-e '\<__raw_writel\>' --or \
	-e '\<__raw_writeq\>' --or \
	-e '\<readb\>' --or \
	-e '\<readw\>' --or \
	-e '\<readl\>' --or \
	-e '\<readq\>' --or \
	-e '\<writeb\>' --or \
	-e '\<writew\>' --or \
	-e '\<writel\>' --or \
	-e '\<writeq\>' --or \
	-e '\<readb_relaxed\>' --or \
	-e '\<readw_relaxed\>' --or \
	-e '\<readl_relaxed\>' --or \
	-e '\<readq_relaxed\>' --or \
	-e '\<writeb_relaxed\>' --or \
	-e '\<writew_relaxed\>' --or \
	-e '\<writel_relaxed\>' --or \
	-e '\<writeq_relaxed\>' --or \
	-e '\<readsb\>' --or \
	-e '\<readsw\>' --or \
	-e '\<readsl\>' --or \
	-e '\<readsq\>' --or \
	-e '\<writesb\>' --or \
	-e '\<writesw\>' --or \
	-e '\<writesl\>' --or \
	-e '\<writesq\>' --or \
	-e '\<inb\>' --or \
	-e '\<inw\>' --or \
	-e '\<inl\>' --or \
	-e '\<outb\>' --or \
	-e '\<outw\>' --or \
	-e '\<outl\>' --or \
	-e '\<inb_p\>' --or \
	-e '\<inw_p\>' --or \
	-e '\<inl_p\>' --or \
	-e '\<outb_p\>' --or \
	-e '\<outw_p\>' --or \
	-e '\<outl_p\>' --or \
	-e '\<insb\>' --or \
	-e '\<insw\>' --or \
	-e '\<insl\>' --or \
	-e '\<outsb\>' --or \
	-e '\<outsw\>' --or \
	-e '\<outsl\>' --or \
	-e '\<insb_p\>' --or \
	-e '\<insw_p\>' --or \
	-e '\<insl_p\>' --or \
	-e '\<outsb_p\>' --or \
	-e '\<outsw_p\>' --or \
	-e '\<outsl_p\>' --or \
	-e '\<ioread8\>' --or \
	-e '\<ioread16\>' --or \
	-e '\<ioread32\>' --or \
	-e '\<ioread64\>' --or \
	-e '\<iowrite8\>' --or \
	-e '\<iowrite16\>' --or \
	-e '\<iowrite32\>' --or \
	-e '\<iowrite64\>' --or \
	-e '\<ioread16be\>' --or \
	-e '\<ioread32be\>' --or \
	-e '\<ioread64be\>' --or \
	-e '\<iowrite16be\>' --or \
	-e '\<iowrite32be\>' --or \
	-e '\<iowrite64be\>' --or \
	-e '\<ioread8_rep\>' --or \
	-e '\<ioread16_rep\>' --or \
	-e '\<ioread32_rep\>' --or \
	-e '\<ioread64_rep\>' --or \
	-e '\<iowrite8_rep\>' --or \
	-e '\<iowrite16_rep\>' --or \
	-e '\<iowrite32_rep\>' --or \
	-e '\<iowrite64_rep\>' --or \
	-e '\<__io_virt\>' --or \
	-e '\<pci_iounmap\>' --or \
	-e '\<virt_to_phys\>' --or \
	-e '\<phys_to_virt\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<__ioremap\>' --or \
	-e '\<iounmap\>' --or \
	-e '\<ioremap\>' --or \
	-e '\<ioremap_nocache\>' --or \
	-e '\<ioremap_uc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wc\>' --or \
	-e '\<ioremap_wt\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<ioport_map\>' --or \
	-e '\<ioport_unmap\>' --or \
	-e '\<xlate_dev_kmem_ptr\>' --or \
	-e '\<xlate_dev_mem_ptr\>' --or \
	-e '\<unxlate_dev_mem_ptr\>' --or \
	-e '\<virt_to_bus\>' --or \
	-e '\<bus_to_virt\>' --or \
	-e '\<memset_io\>' --or \
	-e '\<memcpy_fromio\>' --or \
	-e '\<memcpy_toio\>'

I also reordered a couple includes when they weren't alphabetical and
removed clk.h from kona, replacing it with clk-provider.h because
that driver doesn't use clk consumer APIs.

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: John Crispin <john@phrozen.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-05-15 13:21:37 -07:00
Stephen Boyd f6111b9d79 Merge branches 'clk-doc', 'clk-more-critical', 'clk-meson' and 'clk-basic-be' into clk-next 
- Remove clk_readl() and introduce BE versions of basic clk types

* clk-doc:
  clk: Drop duplicate clk_register() documentation
  clk: Document and simplify clk_core_get_rate_nolock()
  clk: Remove 'flags' member of struct clk_fixed_rate
  clk: nxp: Drop 'flags' on fixed_rate clk macro
  clk: Document __clk_mux_determine_rate()
  clk: Document CLK_MUX_READ_ONLY mux flag
  clk: Document deprecated things
  clk: Collapse gpio clk kerneldoc

* clk-more-critical:
  clk: highbank: Convert to CLK_IS_CRITICAL

* clk-meson: (21 commits)
  clk: meson: axg-audio: add g12a support
  clk: meson: axg-audio: don't register inputs in the onecell data
  clk: meson: axg_audio: replace prefix axg by aud
  dt-bindings: clk: axg-audio: add g12a support
  clk: meson: meson8b: add the video decoder clock trees
  clk: meson: meson8b: add the VPU clock trees
  clk: meson: meson8b: add support for the GP_PLL clock on Meson8m2
  clk: meson: meson8b: use a separate clock table for Meson8m2
  dt-bindings: clock: meson8b: export the video decoder clocks
  clk: meson-g12a: add video decoder clocks
  dt-bindings: clock: meson8b: export the VPU clock
  clk: meson-g12a: add PCIE PLL clocks
  dt-bindings: clock: g12a-aoclk: expose CLKID_AO_CTS_OSCIN
  clk: meson-pll: add reduced specific clk_ops for G12A PCIe PLL
  dt-bindings: clock: meson8b: drop the "ABP" clock definition
  clk: meson: g12a: add cpu clocks
  dt-bindings: clk: g12a-clkc: add VDEC clock IDs
  dt-bindings: clock: axg-audio: unexpose controller inputs
  dt-bindings: clk: g12a-clkc: add PCIE PLL clock ID
  clk: g12a-aoclk: re-export CLKID_AO_SAR_ADC_SEL clock id
  ...

* clk-basic-be:
  clk: core: replace clk_{readl,writel} with {readl,writel}
  clk: core: remove powerpc special handling
  powerpc/512x: mark clocks as big endian
  clk: mux: add explicit big endian support
  clk: multiplier: add explicit big endian support
  clk: gate: add explicit big endian support
  clk: fractional-divider: add explicit big endian support
  clk: divider: add explicit big endian support
 2019-05-07 11:44:42 -07:00
Stephen Boyd 2ed3b9103a Merge branches 'clk-renesas', 'clk-qcom', 'clk-mtk', 'clk-milbeaut' and 'clk-imx' into clk-next 
- Qualcomm QCS404 CDSP clk support
 - Qualcomm QCS404 Turing clk support
 - Mediatek MT8183 clock support
 - Mediatek MT8516 clock support
 - Milbeaut M10V clk controller support

* clk-renesas:
  clk: renesas: rcar-gen3: Remove unused variable
  clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value
  clk: renesas: r8a77980: Fix RPC-IF module clock's parent
  clk: renesas: rcar-gen3: Rename DRIF clocks
  clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of SYS-DMAC
  clk: renesas: rcar-gen3: Correct parent clock of HS-USB
  clk: renesas: rcar-gen3: Correct parent clock of EHCI/OHCI
  clk: renesas: r8a774c0: Add Z2 clock
  clk: renesas: r8a77990: Add Z2 clock
  clk: renesas: rcar-gen3: Support Z and Z2 clocks with high frequency parents
  math64: New DIV64_U64_ROUND_CLOSEST helper
  clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset
  clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor
  clk: renesas: r9a06g032: Add missing PCI USB clock
  clk: renesas: r7s9210: Always use readl()
  clk: renesas: rcar-gen3: Pass name/offset to cpg_sd_clk_register()

* clk-qcom:
  clk: qcom: Skip halt checks on gcc_pcie_0_pipe_clk for 8998
  clk: qcom: Add QCS404 TuringCC
  clk: qcom: branch: Add AON clock ops
  dt-bindings: clock: Introduce Qualcomm Turing Clock controller
  clk: qcom: gcc-qcs404: Add CDSP related clocks and resets

* clk-mtk:
  clk: mediatek: add clock driver for MT8516
  dt-bindings: mediatek: apmixedsys: add support for MT8516
  dt-bindings: mediatek: infracfg: add support for MT8516
  dt-bindings: mediatek: topckgen: add support for MT8516
  clk: mediatek: Allow changing PLL rate when it is off
  clk: mediatek: Add MT8183 clock support
  clk: mediatek: Add configurable pcw_chg_reg to mtk_pll_data
  clk: mediatek: Add dt-bindings for MT8183 clocks
  dt-bindings: ARM: Mediatek: Document bindings for MT8183
  clk: mediatek: Add configurable pcwibits and fmin to mtk_pll_data
  clk: mediatek: Add new clkmux register API
  clk: mediatek: Disable tuner_en before change PLL rate

* clk-milbeaut:
  clock: milbeaut: Add Milbeaut M10V clock controller
  dt-bindings: clock: milbeaut: add Milbeaut clock description

* clk-imx:
  clk: imx: correct pfdv2 gate_bit/vld_bit operations
  clk: imx: clk-pllv3: mark expected switch fall-throughs
  clk: imx8mq: Add dsi_ipg_div
  clk: imx: pllv4: add fractional-N pll support
  clk: imx: keep uart clock on during system boot
  clk: imx: correct i.MX7D AV PLL num/denom offset
  clk: imx6sll: Fix mispelling uart4_serial as serail
  clk: imx: pll14xx: drop unused variable
  clk: imx: rename clk-imx51-imx53.c to clk-imx5.c
  clk: imx5: Fix i.MX50 ESDHC clock registers
  clk: imx5: Fix i.MX50 mainbus clock registers
  clk: imx: Remove unused imx_get_clk_hw_fixed
  dt-bindings: clock: imx7ulp: remove SNVS clock
  clk: imx7ulp: remove snvs clock
 2019-05-07 11:44:21 -07:00
Anson Huang a5a627c676 clk: imx: correct pfdv2 gate_bit/vld_bit operations 
The operations of pfdv2 gate_bit/valid_bit are incorrect,
they are defined as u8 for bit offset, but gate_bit is
actually assigned as mask which could be 32 bit long and
it causes overflow, and vld_bit is assigned as bit offset
based on incorrect gate_bit value, it causes incorrect
pfd clock gate status in clock tree, this patch fixes the
issue by assigning them as correct bit offset.

Fixes: 9fcb6be3b6 ("clk: imx: add pfdv2 support")
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-05-03 09:31:54 -07:00
Gustavo A. R. Silva 53dd5c709b clk: imx: clk-pllv3: mark expected switch fall-throughs 
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/clk/imx/clk-pllv3.c: In function ‘imx_clk_pllv3’:
drivers/clk/imx/clk-pllv3.c:446:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
   pll->div_shift = 1;
   ~~~~~~~~~~~~~~~^~~
drivers/clk/imx/clk-pllv3.c:447:2: note: here
  case IMX_PLLV3_USB:
  ^~~~
drivers/clk/imx/clk-pllv3.c:453:21: warning: this statement may fall through [-Wimplicit-fallthrough=]
   pll->denom_offset = PLL_IMX7_DENOM_OFFSET;
                     ^
drivers/clk/imx/clk-pllv3.c:454:2: note: here
  case IMX_PLLV3_AV:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Fixes: b4a4cb5a04 ("clk: imx: correct i.MX7D AV PLL num/denom offset")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-05-03 09:02:13 -07:00
Guido Günther 4d13c67adf clk: imx8mq: Add dsi_ipg_div 
It's defined in imx8mq-clock.h but wasn't assigned yet. It's used as
clk_tx_esc in the nwl dsi host controller (i.MX8MQ RM, Rev. 0, 01/2018
Sect. 13.5.3.7.4).

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-05-02 13:26:38 -07:00
Anson Huang a048fe996b clk: imx: pllv4: add fractional-N pll support 
The pllv4 supports fractional-N function, the formula is:

PLL output freq = input * (mult + num/denom),

This patch adds fractional-N function support, including
clock round rate, calculate rate and set rate, with this
patch, the clock rate of APLL in clock tree is more accurate
than before:

Without fraction:
apll_pre_sel                      1        1        1    24000000          0     0  50000
   apll_pre_div                   1        1        2    24000000          0     0  50000
      apll                        1        1        2   528000000          0     0  50000
         apll_pfd3                0        0        0   792000000          0     0  50000
         apll_pfd2                0        0        0   339428571          0     0  50000
         apll_pfd1                0        0        0   352000000          0     0  50000
            usdhc0                0        0        0   352000000          0     0  50000
         apll_pfd0                1        1        1   352000000          0     0  50000

With fraction:
apll_pre_sel                      1        1        1    24000000          0     0  50000
   apll_pre_div                   1        1        2    24000000          0     0  50000
      apll                        1        1        2   529200000          0     0  50000
         apll_pfd3                0        0        0   793800000          0     0  50000
         apll_pfd2                0        0        0   340200000          0     0  50000
         apll_pfd1                0        0        0   352800000          0     0  50000
            usdhc0                0        0        0   352800000          0     0  50000
         apll_pfd0                1        1        1   352800000          0     0  50000

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
 2019-05-01 14:01:45 -07:00
Jacky Bai 8cd117e712 clk: imx: keep uart clock on during system boot 
Keep uart clocks enabled when earlyprintk or
earlycon is active.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-29 16:02:01 -07:00
Anson Huang b4a4cb5a04 clk: imx: correct i.MX7D AV PLL num/denom offset 
According reference manual, i.MX7D's audio/video PLL's
num/denom register offset are 0x20/0x30, they are different
from i.MX6's audio/video PLL, correct it by introducing new
offset variables for audio/video PLL and using runtime
assignment based on PLL type.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-29 16:01:50 -07:00
Leonard Crestez 6ff46d77ca clk: imx6sll: Fix mispelling uart4_serial as serail 
This looks like a copy-paste error. This string is not referenced
anywhere so it's safe to rename it.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-25 14:46:01 -07:00
Peng Fan a3c9e13ff0 clk: imx: pll14xx: drop unused variable 
It does not make sense to only get value from pll->base and assign
to a local variable when recalc_rate.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-25 14:42:02 -07:00
Stephen Boyd d635c3512d i.MX7UPL clock changes for 5.2: 
- Remove SNVS clock from i.MX7UPL clock driver and bindings, as the
    clock will be visible on M4 core only, and never be accessed by
    Cortex-A cores.
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Merge tag 'clk-imx7ulp-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx

Pull i.MX7UPL clk changes from Shawn Guo:

 - Remove SNVS clock from i.MX7UPL clock driver and bindings, as the
   clock will be visible on M4 core only, and never be accessed by
   Cortex-A cores

* tag 'clk-imx7ulp-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: clock: imx7ulp: remove SNVS clock
  clk: imx7ulp: remove snvs clock
 2019-04-25 08:31:32 -07:00
Stephen Boyd 363de1d63e i.MX5 clock changes for 5.2: 
- A couple of patches from Jonathan Neuschäfer to improve i.MX5 clock
    driver for i.MX50 support.
  - Rename file clk-imx51-imx53.c to clk-imx5.c, as it covers support for
    all i.MX5 series SoCs including i.MX50.
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Merge tag 'clk-imx5-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx

Pull i.MX5 clk changes from Shawn Guo:

 - A couple of patches from Jonathan Neuschäfer to improve i.MX5 clock
   driver for i.MX50 support
 - Rename file clk-imx51-imx53.c to clk-imx5.c, as it covers support for
   all i.MX5 series SoCs including i.MX50

* tag 'clk-imx5-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx: rename clk-imx51-imx53.c to clk-imx5.c
  clk: imx5: Fix i.MX50 ESDHC clock registers
  clk: imx5: Fix i.MX50 mainbus clock registers
 2019-04-25 08:30:39 -07:00
Jonas Gorski 5834fd75e6 clk: core: replace clk_{readl,writel} with {readl,writel} 
Now that clk_{readl,writel} is just an alias for {readl,writel}, we can
switch all users of clk_* to use the accessors directly and remove the
helpers.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
[sboyd@kernel.org: Also convert renesas file so that this can be
compile independently]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-23 10:57:49 -07:00
Shawn Guo de348df5b3 clk: imx: rename clk-imx51-imx53.c to clk-imx5.c 
As the driver is handling all i.MX5 series SoCs inlcuding i.MX50, rather
than just i.MX51 and i.MX53, let's rename it to clk-imx5.c.

Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-15 17:09:23 +08:00
Leonard Crestez f89b9e1be7 clk: imx: Fix PLL_1416X not rounding rates 
Code which initializes the "clk_init_data.ops" checks pll->rate_table
before that field is ever assigned to so it always picks
"clk_pll1416x_min_ops".

This breaks dynamic rate rounding for features such as cpufreq.

Fix by checking pll_clk->rate_table instead, here pll_clk refers to
the constant initialization data coming from per-soc clk driver.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-12 14:21:43 -07:00
Jonathan Neuschäfer 1e06250983 clk: imx5: Fix i.MX50 ESDHC clock registers 
The MUX bits for esdhc_{a,c,d}_sel are shifted by one bit within CSCMR1,
because esdhc_b_sel (ESDHC3_CLK_SEL in the Reference Manual) is extended
by one bit.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 2019-04-03 16:10:06 +07:00
Jonathan Neuschäfer 639eb92531 clk: imx5: Fix i.MX50 mainbus clock registers 
i.MX50 does not have a periph_apm clock. Instead, the main bus clock
(a.k.a. periph_clk) comes directly from a MUX between pll1_sw, pll2_sw,
pll3_sw, and lp_apm.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 2019-04-03 16:09:50 +07:00
Abel Vesa 48a15bb42d clk: imx: Remove unused imx_get_clk_hw_fixed 
This is never used and the imx_clk_hw_fixed does the same thing.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 2019-03-26 16:49:49 +08:00
Anson Huang 03fc565c2a clk: imx7ulp: remove snvs clock 
Since i.MX7ULP B0 chip, the SNVS module is moved into M4
domain and its clock is also moved into PCC0 which is
contorlled by M4, Linux kernel should NOT add it into
clock tree.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 2019-03-20 15:59:52 +08:00
Stephen Boyd e7faa095cb Merge branches 'clk-imx', 'clk-samsung', 'clk-ti', 'clk-uniphier-gear' and 'clk-mmp2-lcdc' into clk-next 
- Split LCDC into two clks on the Marvell MMP2 SoC

* clk-imx:
  clk: imx8mq: add GPIO clocks to clock tree
  clk: imx: Refactor entire sccg pll clk
  clk: imx: scu: add cpu frequency scaling support
  clk: imx: imx8mm: Mark init function __init
  clk: imx8mq: Add the missing ARM clock
  dt-bindings: imx8mq-clock: Add the missing ARM clock
  clk: imx: imx8mq: Fix the rate propagation for arm pll
  clk: imx8mq: Add support for the CLKO1 clock
  clk: imx8mq: Fix the CLKO2 source select list
  clk: imx8mq: Add missing M4 clocks
  clk: imx: Add clock driver support for imx8mm
  dt-bindings: imx: Add clock binding doc for imx8mm
  clk: imx: Add PLLs driver for imx8mm soc
  clk: imx5: add imx5_SCC2_IPG_GATE
  clk: imx: scu: add set parent support
  clk: imx: scu: add fallback compatible string support
  clk: imx8mq: Make parent names arrays const pointers
  clk: imx: Make parents const pointer in mux wrappers
  clk: imx: Make parent_names const pointer in composite-8m

* clk-samsung:
  clk: samsung: s3c2443: Mark expected switch fall-through
  clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
  clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
  clk: samsung: exynos5433: Add selected IMEM clocks
  clk: samsung: dt-bindings: Document Exynos5433 IMEM CMU
  clk: samsung: exynos5433: Fix name typo in sssx
  clk: samsung: exynos5433: Fix definition of CLK_ACLK_IMEM_{200, 266} clocks
  clk: samsung: dt-bindings: Add Exynos5433 IMEM CMU clock IDs

* clk-ti:
  clk: clk-twl6040: Fix imprecise external abort for pdmclk
  ARM: OMAP2+: hwmod: disable ick autoidling when a hwmod requires that
  clk: ti: check clock type before doing autoidle ops
  clk: ti: add a usecount for autoidle
  clk: ti: generalize the init sequence of clk_hw_omap clocks
  clk: ti: remove usage of CLK_IS_BASIC
  clk: ti: add new API for checking if a provided clock is an OMAP clock
  clk: ti: move clk_hw_omap list handling under generic part of the driver

* clk-uniphier-gear:
  clk: uniphier: Fix update register for CPU-gear

* clk-mmp2-lcdc:
  clk: mmp2: separate LCDC peripheral clk form the display clock
  dt-bindings: marvell,mmp2: Add clock id for the LCDC clock
 2019-03-08 10:27:40 -08:00
Stephen Boyd 7e2570031a Merge branches 'clk-of-refcount', 'clk-mmio-fixed-clock', 'clk-remove-clps', 'clk-socfpga-parent' and 'clk-struct-size' into clk-next 
- Various DT of_node refcount fixes
 - Support for fixed rate clks populated from an MMIO register
 - Remove clps711x driver as the board support is gone

* clk-of-refcount:
  clk: dove: fix refcount leak in dove_clk_init()
  clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
  clk: armada-xp: fix refcount leak in axp_clk_init()
  clk: kirkwood: fix refcount leak in kirkwood_clk_init()
  clk: armada-370: fix refcount leak in a370_clk_init()
  clk: vf610: fix refcount leak in vf610_clocks_init()
  clk: imx7d: fix refcount leak in imx7d_clocks_init()
  clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
  clk: imx6q: fix refcount leak in imx6q_clocks_init()
  clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
  clk: socfpga: fix refcount leak
  clk: ti: fix refcount leak in ti_dt_clocks_register()
  clk: qoriq: fix refcount leak in clockgen_init()
  clk: highbank: fix refcount leak in hb_clk_init()

* clk-mmio-fixed-clock:
  clk: Add Fixed MMIO clock driver
  dt-bindings: clk: Add bindings for Fixed MMIO clock

* clk-remove-clps:
  clk: clps711x: Remove board support

* clk-socfpga-parent:
  clk: socfpga: Don't have get_parent for single parent ops

* clk-struct-size:
  clk: imx: imx7ulp: use struct_size() in kzalloc()
 2019-03-08 10:26:59 -08:00
Anson Huang 0c91c11c7d clk: imx8mq: add GPIO clocks to clock tree 
i.MX8MQ has clock gate for each GPIO bank, add them
into clock tree for GPIO driver to manage.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-28 10:28:28 -08:00
Abel Vesa e9dda4af68 clk: imx: Refactor entire sccg pll clk 
Make the entire combination of plls to be one single clock. The parents used
for bypasses are specified each as an index in the parents list.
The determine_rate does a lookup throughout all the possible combinations
for all the divs and returns the best possible 'setup' which in turn is used
by set_rate later to set up all the divs and bypasses.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Tested-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 10:09:31 -08:00
Anson Huang 3b9ea606cd clk: imx: scu: add cpu frequency scaling support 
On NXP's i.MX SoCs with system controller inside, CPU frequency
scaling can ONLY be done by system controller firmware, and it
can ONLY be requested from secure mode, so Linux kernel has to
call ARM SMC to trap to ARM-Trusted-Firmware to request system
controller firmware to do CPU frequency scaling.

This patch adds i.MX system controller CPU frequency scaling support,
it reuses cpufreq-dt driver and implement the CPU frequency scaling
inside SCU clock driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-26 10:03:38 -08:00
Stephen Boyd 341fdf2602 clk: imx: imx8mm: Mark init function __init 
It calls another __init marked function and thus causes a section
mismatch if we don't mark it this way.

Fixes: ba5625c3e2 ("clk: imx: Add clock driver support for imx8mm")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 15:29:10 -08:00
Abel Vesa db27e40b27 clk: imx8mq: Add the missing ARM clock 
Add the ARM clock as imx_clk_cpu type.
Will be used by cpufreq.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:56:52 -08:00
Abel Vesa ad18bbf369 clk: imx: imx8mq: Fix the rate propagation for arm pll 
The arm pll bypass needs to propagate the rate upwards
in order for the cpufreq to work.

Fixes: b80522040c ("clk: imx: Add clock driver for i.MX8MQ CCM")
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:56:52 -08:00
Fabio Estevam 202ce5afe5 clk: imx8mq: Add support for the CLKO1 clock 
Add the entry for the CLKO1 clock.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:56:52 -08:00
Fabio Estevam 0bfed63baf clk: imx8mq: Fix the CLKO2 source select list 
The CLKO2 clock source select list is the following as per the i.MX8M
Reference Manual:

000 - 25M_REF_CLK
001 - SYSTEM_PLL2_DIV5
010 - SYSTEM_PLL1_DIV2
011 - SYSTEM_PLL2_DIV6
100 - SYSTEM_PLL3_CLK
101 - AUDIO_PLL1_CLK
110 - VIDEO_PLL1_CLK
111 - 32K_REF_CLK

However, in imx8mq_clko2_sels[] only the first four entries are correct.

Fix it by adding the missing "sys3_pll2_out" entry in order to match
the description from the manual.

Fixes: b80522040c ("clk: imx: Add clock driver for i.MX8MQ CCM")
Reported-by: Rogerio Pimentel <rogerio.silva@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:17 -08:00
Carlo Caione 81bf81e7d3 clk: imx8mq: Add missing M4 clocks 
The clocks list is missing the clocks for the M4 core.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Bai Ping ba5625c3e2 clk: imx: Add clock driver support for imx8mm 
Add clock driver support for i.MX8MM SOC.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Bai Ping 8646d4dcc7 clk: imx: Add PLLs driver for imx8mm soc 
New PLLs are introduced on i.MX8M Mini SOC.
PLL1416X is Integer PLL, PLL1443X is a Frac PLL.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Michael Grzeschik 9b15cffbf2 clk: imx5: add imx5_SCC2_IPG_GATE 
This adds the missing clock for the SCC2 peripheral unit.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Aisheng Dong 666aed2d13 clk: imx: scu: add set parent support 
Add clk scu set parents support.

Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
[sboyd@kernel.org: Remove le32_to_cpu() on get_parent op]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Aisheng Dong cd67d32727 clk: imx: scu: add fallback compatible string support 
SCU clock can be used in a similar way by IMX8QXP and IMX8QM SoCs.
Make the driver support "fsl,scu-clk" fallback compatible string
to allow other SoCs to reuse the common part.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Abel Vesa 402564aee0 clk: imx8mq: Make parent names arrays const pointers 
The arrays containing the mux selectors need to be of const pointer
to const char.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Abel Vesa 470663e078 clk: imx: Make parents const pointer in mux wrappers 
The parents needs to be pointer to const pointer to const char.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Abel Vesa 65a6b7c5f3 clk: imx: Make parent_names const pointer in composite-8m 
The parent_names needs to be pointer to const pointer to const char.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-02-21 12:41:16 -08:00
Gustavo A. R. Silva 921e88a4f9 clk: imx: imx7ulp: use struct_size() in kzalloc() 
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct foo {
    int stuff;
    void *entry[];
};

instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-01-24 11:37:46 -08:00
Abel Vesa a64a9c088b clk: imx: Fix fractional clock set rate computation 
Before multiplying by PLL_FRAC_DENOM, the temp64 needs to be
 temp64 = rate * 2 - divfi * parent_rate * 8, instead of:
 temp64 = (rate * 2 - divfi) * parent_rate

Fixes: 6209624b9a ("clk: imx: Add fractional PLL output clock")
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-01-24 11:17:28 -08:00
Wei Yongjun 48504619a6 clk: imx: fix potential NULL dereference in imx8qxp_lpcg_clk_probe() 
platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.

This is detected by Coccinelle semantic patch.

@@
expression pdev, res, n, t, e, e1, e2;
@@

res = platform_get_resource(pdev, t, n);
+ if (!res)
+   return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);

Fixes: 1e3121bfe5 ("clk: imx: add imx8qxp lpcg driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-01-09 10:34:54 -08:00
Yangtao Li 567177024e clk: vf610: fix refcount leak in vf610_clocks_init() 
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Fixes: 1f2c5fd5f0 ("ARM: imx: add VF610 clock support")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-12-28 11:40:59 -08:00
Yangtao Li 5f8c183a99 clk: imx7d: fix refcount leak in imx7d_clocks_init() 
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Fixes: 8f6d8094b2 ("ARM: imx: add imx7d clk tree support")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-12-28 11:40:44 -08:00
Yangtao Li 1731e14fb3 clk: imx6sx: fix refcount leak in imx6sx_clocks_init() 
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Fixes: d551356890 ("ARM: imx: add clock driver for imx6sx")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-12-28 11:40:25 -08:00
Yangtao Li c9ec1d8fef clk: imx6q: fix refcount leak in imx6q_clocks_init() 
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Fixes: 2acd1b6f88 ("ARM: i.MX6: implement clocks using common clock framework")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-12-28 11:40:04 -08:00
Aisheng Dong 08972760d3 clk: imx8qxp: make the name of clock ID generic 
SCU clock can be used in a similar way by IMX8QXP and IMX8QM SoCs.
Let's make the name of clock ID generic to allow other SoCs to reuse
the common part.

This patch only changes the clock id name and file name, so no
functional change.

Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-12-28 10:43:57 -08:00
Stephen Boyd b677574bdf Merge branch 'clk-imx7ulp' into clk-next 
* clk-imx7ulp:
  clk: imx: imx7ulp: add arm hsrun mode clocks support
  dt-bindings: clock: imx7ulp: add HSRUN mode related clocks
 2018-12-14 14:03:38 -08:00