Commit Graph

295 Commits

Author SHA1 Message Date
Jacopo Mondi 140444003c clk: renesas: r8a77965: Add CMM clocks
Add clock definitions for CMM units on Renesas R-Car M3-N.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-06-18 11:02:54 +02:00
Jacopo Mondi 00c7cd3f13 clk: renesas: r8a7795: Add CMM clocks
Add clock definitions for CMM units on Renesas R-Car H3.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-06-18 11:02:51 +02:00
Gareth Williams aad03a66f9 clk: renesas: r9a06g032: Add clock domain support
There are several clocks on the r9a06g032 which are currently not
enabled in their drivers that can be delegated to clock domain system
for power management. Therefore add support for clock domain
functionality to the r9a06g032 clock driver.

Signed-off-by: Gareth Williams <gareth.williams.jx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-06-04 11:51:00 +02:00
Geert Uytterhoeven 0f7ece0d14 clk: renesas: mstp: Remove error messages on out-of-memory conditions
pm_clk_create() and pm_clk_add_clk() can fail only when running out of
memory.  Hence there is no need to print error messages on failure, as
the memory allocation core already takes care of that.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2019-06-04 10:57:15 +02:00
Geert Uytterhoeven ed04e6288a clk: renesas: cpg-mssr: Remove error messages on out-of-memory conditions
pm_clk_create() and pm_clk_add_clk() can fail only when running out of
memory.  Hence there is no need to print error messages on failure, as
the memory allocation core already takes care of that.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2019-06-04 10:57:11 +02:00
Geert Uytterhoeven f243220e67 clk: renesas: cpg-mssr: Use genpd of_node instead of local copy
Since commit 6a0ae73d95 ("PM / Domain: Add support to parse
domain's OPP table"), of_genpd_add_provider_simple() fills in
the dev.of_node field in the generic_pm_domain structure.

Hence cpg_mssr_is_pm_clk() can use that instead of its own copy in the
driver-private cpg_mssr_clk_domain structure.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2019-06-04 10:56:49 +02:00
Jacopo Mondi e7f30c257b clk: renesas: r8a7796: Add CMM clocks
Add clock definitions for CMM units on Renesas R-Car Gen3 M3-W.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-05-21 10:45:09 +02:00
Cao Van Dong 54bbb66544 clk: renesas: r8a779{5|6|65}: Add TPU clock
This patch adds the TPU clock on the R-Car r8a7795/r8a7796/r8a77965
SoCs.

Signed-off-by: Cao Van Dong <cv-dong@jinso.co.jp>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-05-21 10:41:31 +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 ff060019f4 Merge branches 'clk-stm32f4', 'clk-tegra', 'clk-at91', 'clk-sifive-fu540' and 'clk-spdx' into clk-next
- Support for STM32F769
 - Rework AT91 sckc DT bindings
 - Fix slow RC oscillator issue on sama5d3
 - AT91 sam9x60 PMC support
 - SiFive FU540 PRCI and PLL support

* clk-stm32f4:
  clk: stm32mp1: Add ddrperfm clock
  clk: stm32: Introduce clocks of STM32F769 board

* clk-tegra:
  clk: tegra: divider: Mark Memory Controller clock as read-only
  clk: tegra: emc: Replace BUG() with WARN_ONCE()
  clk: tegra: emc: Fix EMC max-rate clamping
  clk: tegra: emc: Support multiple RAM codes
  clk: tegra: emc: Don't enable EMC clock manually
  clk: tegra124: Remove lock-enable bit from PLLM
  clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider
  clk: tegra: Don't enable already enabled PLLs

* clk-at91:
  clk: at91: Mark struct clk_range as const
  clk: at91: add sam9x60 pmc driver
  dt-bindings: clk: at91: add bindings for SAM9X60 pmc
  clk: at91: add sam9x60 PLL driver
  clk: at91: master: Add sam9x60 support
  clk: at91: usb: Add sam9x60 support
  clk: at91: allow configuring generated PCR layout
  clk: at91: allow configuring peripheral PCR layout
  clk: at91: sckc: handle different RC startup time
  clk: at91: modernize sckc binding
  dt-bindings: clock: at91: new sckc bindings

* clk-sifive-fu540:
  clk: sifive: add a driver for the SiFive FU540 PRCI IP block
  clk: analogbits: add Wide-Range PLL library
  dt-bindings: clk: add documentation for the SiFive PRCI driver

* clk-spdx:
  clk: sunxi-ng: Use the correct style for SPDX License Identifier
  clk: sprd: Use the correct style for SPDX License Identifier
  clk: renesas: Use the correct style for SPDX License Identifier
  clk: qcom: Use the correct style for SPDX License Identifier
  clk: davinci: Use the correct style for SPDX License Identifier
  clk: actions: Use the correct style for SPDX License Identifier
2019-05-07 11:45:29 -07:00
Nishad Kamdar 596c5ea465 clk: renesas: Use the correct style for SPDX License Identifier
This patch corrects the SPDX License Identifier style
in header files related to Clock Drivers for Renesas Socs.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used)

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-01 13:01:18 -07:00
Stephen Boyd c2f0705f85 clk: renesas: rcar-gen3: Remove unused variable
This variable is no longer used and the compiler rightly complains that
it should be removed. Drop it to silence the following:

drivers/clk/renesas/rcar-gen3-cpg.c: In function 'cpg_sd_clk_register':
drivers/clk/renesas/rcar-gen3-cpg.c:386:15: warning: unused variable 'i' [-Wunused-variable]
  unsigned int i;

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: b953eaaeb5 ("clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 10:35:45 -07:00
Takeshi Kihara b953eaaeb5 clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate() return value
cpg_sd_clock_round_rate() may return an unsupported clock rate for the
requested clock rate. Therefore, when cpg_sd_clock_set_rate() sets the
clock rate acquired by cpg_sd_clock_round_rate(), an error may occur.

This is not conform the clk API design.

This patch fixes that by making sure cpg_sd_clock_calc_div() considers
only the division values defined in cpg_sd_div_table[].
With this fix, the cpg_sd_clock_round_rate() always return a support
clock rate.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Fixes: 90c073e539 ("clk: shmobile: r8a7795: Add SD divider support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-04 11:54:46 +02:00
Sergei Shtylyov 21ab095cbc clk: renesas: r8a77980: Fix RPC-IF module clock's parent
Testing has shown that the RPC-IF module clock's parent is the RPCD2
clock, not the RPC one -- the RPC-IF register reads stall otherwise...

Fixes: 94e3935b57 ("clk: renesas: r8a77980: Add RPC clocks")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 10:31:05 +02:00
Takeshi Kihara 3c14505c68 clk: renesas: rcar-gen3: Rename DRIF clocks
According to the R-Car Gen3 Hardware Manual Errata for Rev. 1.50 of Feb
12, 2019, the DRIF clocks have been renamed as follows:

    DRIF0 to DRIF00
    DRIF1 to DRIF01
    DRIF2 to DRIF10
    DRIF3 to DRIF11
    DRIF4 to DRIF20
    DRIF5 to DRIF21
    DRIF6 to DRIF30
    DRIF7 to DRIF31

Therefore, this patch renames the DRIF clocks from DRIFn to DRIFmm.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:39 +02:00
Takeshi Kihara b9df2ea2b8 clk: renesas: rcar-gen3: Correct parent clock of Audio-DMAC
The clock sources of the AXI-bus clock (266.66 MHz) used for Audio-DMAC
DMA transfers are:

    Channel        R-Car H3    R-Car M3-W    R-Car M3-N    R-Car E3
    ---------------------------------------------------------------
    Audio-DMAC0    S1D2        S1D2          S1D2          S1D2
    Audio-DMAC1    S1D2        S1D2          S1D2          -

As a result, change the parent clocks of the Audio-DMAC{0,1} module
clocks on R-Car H3, R-Car M3-W, and R-Car M3-N to S1D2, and change the
parent clock of the Audio-DMAC0 module on R-Car E3 to S1D2.

NOTE: This information will be reflected in a future revision of the
      R-Car Gen3 Hardware Manual.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update R-Car D3, RZ/G2M, and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:35 +02:00
Takeshi Kihara 3c772f71a5 clk: renesas: rcar-gen3: Correct parent clock of SYS-DMAC
The clock sources of the AXI BUS clock (266.66 MHz) used for SYS-DMAC
DMA transfers are:

    Channel      R-Car H3    R-Car M3-W    R-Car M3-N
    -------------------------------------------------
    SYS-DMAC0    S0D3        S0D3          S0D3
    SYS-DMAC1    S3D1        S3D1          S3D1
    SYS-DMAC2    S3D1        S3D1          S3D1

As a result, change the parent clocks of the SYS-DMAC{1,2} module clocks
on R-Car H3, R-Car M3-W, and R-Car M3-N to S3D1.

NOTE: This information will be reflected in a future revision of the
      R-Car Gen3 Hardware Manual.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:29 +02:00
Kazuya Mizuguchi c2182095c8 clk: renesas: rcar-gen3: Correct parent clock of HS-USB
According to the R-Car Gen3 Hardware Manual Rev. 1.00, and the RZ/G2
Hardware Manual Rev. 0.61, the parent clock of the HS-USB module
clocks on R-Car Gen3 and RZ/G2 SoCs is S3D2.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[takeshi: Update R-Car H3, M3-N, and E3]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:27 +02:00
Kazuya Mizuguchi 8d36fdcce2 clk: renesas: rcar-gen3: Correct parent clock of EHCI/OHCI
According to the R-Car Gen3 Hardware Manual Rev. 1.00, and the RZ/G2
Hardware Manual Rev. 0.61, the parent clock of the EHCI/OHCI module
clocks on R-Car Gen3 and RZ/G2 SoCs is S3D2.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[takeshi: Update R-Car H3, M3-N, and E3]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 10:08:20 +02:00
Simon Horman 4aeed945b7 clk: renesas: r8a774c0: Add Z2 clock
Adds support for RZ/G2E (r8a774c0) Z2 clock.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Takeshi Kihara 787fe096fe clk: renesas: r8a77990: Add Z2 clock
Adds support for R-Car E3 (r8a77990) Z2 clock.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[simon: reworked changelog; rebased]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Simon Horman 71119b54a2 clk: renesas: rcar-gen3: Support Z and Z2 clocks with high frequency parents
Support Z and Z2 clocks with parent frequencies greater than UINT32_MAX Hz
(~4.29GHz).

The DIV_ROUND_CLOSEST_ULL() macro accepts a 64bit dividend and 32bit
divisor. This leads to truncation of the divisor, which is the Z or Z2
parent clock frequency in HZ, on platforms where frequency of that clock is
greater than UINT32_MAX Hz.

To resolve this problem the DIV64_U64_ROUND_CLOSEST() macro, which takes
on an unsigned 64bit dividend and divisor, is used.

An earlier version of this patch made use of the existing
DIV_ROUND_CLOSEST() macro, which accepts the prevailing type of the
dividend and divisor. However, this does not compile on 32bit systems, such
as i386 and mips, when called with the types used at this call site, an
unsigned long long dividend and unsigned long divisor.

This work is in preparation for supporting the Z2 clock on the
R-Car Gen3 E3 (r8a77990) SoC which has a 4.8GHz parent clock.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Simon Horman e0836e3638 clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2
After recent reworking of Z and Z2 clk handling
CLK_TYPE_GEN3_Z and CLK_TYPE_GEN3_Z2 have come to have precisely
the same meaning. Remove this redundancy by eliminating the latter.

This is not expected to have any run-time effect.

As suggested by Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Simon Horman 10d9ea5100 clk: renesas: rcar-gen3: Parameterise Z and Z2 clock offset
Parameterise the offset of control bits within the FRQCRC register
for Z and Z2 clocks.

This is in preparation for supporting the Z2 clock on the R-Car E3
(r8a77990) SoC which uses a different offset for control bits to
other, already, supported SoCs.

As suggested by Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Takeshi Kihara 20cc05ba04 clk: renesas: rcar-gen3: Parameterise Z and Z2 clock fixed divisor
Parameterise Z and Z2 clock fixed divisor to allow clocks with a fixed
divisor other than 2, the value used by all such clocks supported to date.

This is in preparation for supporting the Z2 clock on the R-Car E3
(r8a77990) SoC which has a fixed divisor of 4.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[simon: squashed several patches; rewrote changelog; added r8a774a1 change]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Gareth Williams 1addd6d568 clk: renesas: r9a06g032: Add missing PCI USB clock
The clock driver is missing support for the clk_pci_usb clock that is
present on the SoC. This is added to allow the clock to be supported.

Signed-off-by: Gareth Williams <gareth.williams.jx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-04-02 09:50:48 +02:00
Geert Uytterhoeven 9c561be8d8 clk: renesas: r7s9210: Always use readl()
On arm32, there is no reason to use the (soon deprecated) clk_readl().
Hence use the generic readl() instead.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-04-02 09:50:48 +02:00
Geert Uytterhoeven 6a82559f74 clk: renesas: rcar-gen3: Pass name/offset to cpg_sd_clk_register()
Explicitly pass the clock's name and register offset to
cpg_sd_clk_register(), so the latter doesn't have to extract them from
the cpg_core_clk object.

This keeps all cpg_core_clk parsing and unmarshalling contained in a
single function (rcar_gen3_cpg_clk_register()).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-03-18 17:03:57 +01:00
Fabrizio Castro df446f7e6e clk: renesas: r8a774a1: Fix LAST_DT_CORE_CLK
Enum LAST_DT_CORE_CLK needs updating as R8A774A1_CLK_CANFD
was recently added and it's the core clock with the highest
index.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Fixes: 9d034e151b ("clk: renesas: r8a774a1: Add missing CANFD clock")
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-25 09:13:19 -08:00
Fabrizio Castro e61b30bb34 clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK
Enum LAST_DT_CORE_CLK needs updating as R8A774C0_CLK_CANFD
was recently added and it's the core clock with the highest
index.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Fixes: 2a6efbc6da ("clk: renesas: r8a774c0: Add missing CANFD clock")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-02-21 13:09:52 -08:00
Biju Das d1de227de8 clk: renesas: r8a774c0: Add TMU clock
This patch adds the TMU clocks to the R8A774C0 SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-02-05 10:40:05 +01:00
Sergei Shtylyov 94e3935b57 clk: renesas: r8a77980: Add RPC clocks
Describe the RPCSRC internal clock and the RPC[D2] clocks derived from it,
as well as the RPC-IF module clock, in the R-Car V3H (R8A77980) CPG/MSSR
driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-02-05 10:40:05 +01:00
Sergei Shtylyov db4a0073cc clk: renesas: rcar-gen3: Add RPC clocks
The RPCSRC internal clock is controlled by the RPCCKCR.DIV[4:3] on all
the R-Car gen3 SoCs except V3M (R8A77970) but the encoding of this field
is different between SoCs; it makes sense to support the most common case
of this encoding in the R-Car gen3 CPG driver...

After adding the RPCSRC clock, we can add the RPC[D2] clocks derived from
it and controlled by the RPCCKCR register on all the R-Car gen3 SoCs except
V3M (R8A77970); the composite clock driver seems handy for this task, using
the spinlock added in the previous patch...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-02-05 10:40:05 +01:00
Sergei Shtylyov 875e8f6b01 clk: renesas: rcar-gen3: Add spinlock
Protect the CPG register read-modify-write sequence with a spinlock.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-01-25 11:26:22 +01:00
Sergei Shtylyov 8cb8f16c62 clk: renesas: rcar-gen3: Factor out cpg_reg_modify()
There's quite often repeated sequence of a CPG register read-modify-write,
so it seems worth factoring it out into a function -- this saves 68 bytes
of the object code (AArch64 gcc 4.8.5) and simplifies protecting all such
sequences with a spinlock in the next patch...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-01-25 11:26:22 +01:00
Geert Uytterhoeven d9286d9743 clk: renesas: r8a774c0: Correct parent clock of DU
According to the RZ/G Series, 2nd Generation Hardware Manual Rev 0.61,
the parent clock of the DU module clocks on RZ/G2E is S1D1.

Fixes: 906e0a4a6d ("clk: renesas: cpg-mssr: Add r8a774c0 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-01-24 16:01:08 +01:00
Fabrizio Castro 9d034e151b clk: renesas: r8a774a1: Add missing CANFD clock
This patch adds the missing CANFD clock to the r8a774a1 specific
clock driver.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-01-21 14:01:57 +01:00
Fabrizio Castro 2a6efbc6da clk: renesas: r8a774c0: Add missing CANFD clock
This patch adds the missing CANFD clock to the r8a774c0 specific
clock driver.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-01-21 13:50:40 +01:00
Stephen Boyd 2de34ed964 Merge branch 'clk-of' into clk-next
* clk-of:
  clk: Use of_node_name_eq for node name comparisons
2018-12-14 14:02:55 -08:00
Rob Herring 87ab115185 clk: Use of_node_name_eq for node name comparisons
Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

For instances using of_node_cmp, this has the side effect of now using
case sensitive comparisons. This should not matter for any FDT based
system which all of these are.

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> (clk-mstp)
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (ux500)
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-14 13:52:41 -08:00
Stephen Boyd ffe05540d1 Merge branches 'clk-renesas', 'clk-allwinner', 'clk-tegra', 'clk-meson' and 'clk-rockchip' into clk-next
* clk-renesas:
  clk: renesas: rcar-gen3: Add HS400 quirk for SD clock
  clk: renesas: rcar-gen3: Add documentation for SD clocks
  clk: renesas: rcar-gen3: Set state when registering SD clocks
  clk: renesas: r8a77995: Simplify PLL3 multiplier/divider
  clk: renesas: r8a77995: Add missing CPEX clock
  clk: renesas: r8a77995: Remove non-existent SSP clocks
  clk: renesas: r8a77995: Remove non-existent VIN5-7 module clocks
  clk: renesas: r8a77995: Correct parent clock of DU
  clk: renesas: r8a77990: Correct parent clock of DU
  clk: renesas: r8a77970: Add CPEX clock
  clk: renesas: r8a77965: Add CPEX clock
  clk: renesas: r8a7796: Add CPEX clock
  clk: renesas: r8a7795: Add CPEX clock
  clk: renesas: r8a774a1: Add CPEX clock
  dt-bindings: clock: r8a7796: Remove CSIREF clock
  dt-bindings: clock: r8a7795: Remove CSIREF clock
  clk: renesas: Mark rza2_cpg_clk_register static
  clk: renesas: r7s9210: Add USB clocks
  clk: renesas: r8a77970: Add RPC clocks
  clk: renesas: r7s9210: Add SDHI clocks

* clk-allwinner:
  clk: sunxi-ng: a64: Allow parent change for VE clock
  clk: sunxi-ng: a33: Set CLK_SET_RATE_PARENT for all audio module clocks
  clk: sunxi-ng: a33: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: h3: Allow parent change for ve clock
  clk: sunxi-ng: add support for suniv F1C100s SoC
  dt-bindings: clock: Add Allwinner suniv F1C100s CCU
  clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent
  clk: sunxi-ng: r40: Force LOSC parent to RTC LOSC output
  clk: sunxi-ng: sun50i: a64: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: a64: Fix gate bit of DSI DPHY
  clk: sunxi-ng: Enable DE2_CCU for SUN8I and SUN50I
  clk: sunxi-ng: Add support for H6 DE3 clocks
  dt-bindings: clock: sun8i-de2: Add H6 DE3 clock description
  clk: sunxi-ng: h6: Set video PLLs limits
  clk: sunxi-ng: Use u64 for calculation of NM rate
  clk: sunxi-ng: Adjust MP clock parent rate when allowed
  clk: sunxi-ng: sun50i: h6: Fix MMC clock mux width
  clk: sunxi-ng: enable so-said LDOs for A64 SoC's pll-mipi clock

* clk-tegra:
  clk: tegra: Return the exact clock rate from clk_round_rate
  clk: tegra30: Use Tegra CPU powergate helper function
  soc/tegra: pmc: Drop SMP dependency from CPU APIs
  clk: tegra: Fix maximum audio sync clock for Tegra124/210
  clk: tegra: get rid of duplicate defines
  clk: tegra20: Check whether direct PLLM sourcing is turned off for EMC
  clk: tegra20: Turn EMC clock gate into divider

* clk-meson: (25 commits)
  clk: meson: axg-audio: use the clk input helper function
  clk: meson: add clk-input helper function
  clk: meson: Mark some things static
  clk: meson: meson8b: add the read-only video clock trees
  clk: meson: meson8b: add the fractional divider for vid_pll_dco
  clk: meson: meson8b: fix the offset of vid_pll_dco's N value
  clk: meson: Fix GXL HDMI PLL fractional bits width
  clk: meson: meson8b: add the CPU clock post divider clocks
  clk: meson: meson8b: rename cpu_div2/cpu_div3 to cpu_in_div2/cpu_in_div3
  clk: meson: clk-regmap: add read-only gate ops
  clk: meson: meson8b: allow changing the CPU clock tree
  clk: meson: meson8b: run from the XTAL when changing the CPU frequency
  clk: meson: meson8b: add support for more M/N values in sys_pll
  clk: meson: meson8b: mark the CPU clock as CLK_IS_CRITICAL
  clk: meson: meson8b: do not use cpu_div3 for cpu_scale_out_sel
  clk: meson: clk-pll: check if the clock is already enabled
  clk: meson: meson8b: fix the width of the cpu_scale_div clock
  clk: meson: meson8b: fix incorrect divider mapping in cpu_scale_table
  clk: meson: meson8b: use the HHI syscon if available
  dt-bindings: clock: meson8b: use the registers from the HHI syscon
  ...

* clk-rockchip:
  clk: rockchip: add clock-id to gate of ACODEC for rk3328
  clk: rockchip: add clock ID of ACODEC for rk3328
  clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328
  clk: rockchip: fix I2S1 clock gate register for rk3328
  clk: rockchip: make rk3188 hclk_vio_bus critical
  clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering
  clk: rockchip: fix rk3188 sclk_smc gate data
  clk: rockchip: fix typo in rk3188 spdif_frac parent
2018-12-14 13:34:00 -08:00
Stephen Boyd ddbae6658d clk: renesas: Remove usage of CLK_IS_BASIC
This flag doesn't look to be used by any code, just set in various clk
init structures and then never tested again. Remove it from these
drivers as it doesn't provide any benefit.

Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: <linux-renesas-soc@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-10 14:43:04 -08:00
Stephen Boyd 60baf75e3f clk: renesas: Updates for v4.21 (take two)
- Add support for CPEX (timer) clocks on various R-Car Gen3 and RZ/G2
     SoCs,
   - Add support for SDHI HS400 clocks on early revisions of R-Car H3 and
     M3-W,
   - Miscellaneous fixes based on the Hardware Manual Errata.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCXApPfAAKCRCKwlD9ZEnx
 cLp4AP9zMM3cJblKKctZD1SNIQc1OdLkQWXZIz67SwkY7QOfxgEAuDEyzALpcuib
 X5J7/USOoXDLFFKyKJgEYH/bEkHRMQM=
 =NLk2
 -----END PGP SIGNATURE-----

Merge tag 'clk-renesas-for-v4.21-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas

Pull Renesas clk driver updates from Geert Uytterhoeven:

 - Add support for CPEX (timer) clocks on various R-Car Gen3 and RZ/G2 SoCs
 - Add support for SDHI HS400 clocks on early revisions of R-Car H3 and M3-W
 - Miscellaneous fixes based on the Hardware Manual Errata

* tag 'clk-renesas-for-v4.21-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: rcar-gen3: Add HS400 quirk for SD clock
  clk: renesas: rcar-gen3: Add documentation for SD clocks
  clk: renesas: rcar-gen3: Set state when registering SD clocks
  clk: renesas: r8a77995: Simplify PLL3 multiplier/divider
  clk: renesas: r8a77995: Add missing CPEX clock
  clk: renesas: r8a77995: Remove non-existent SSP clocks
  clk: renesas: r8a77995: Remove non-existent VIN5-7 module clocks
  clk: renesas: r8a77995: Correct parent clock of DU
  clk: renesas: r8a77990: Correct parent clock of DU
  clk: renesas: r8a77970: Add CPEX clock
  clk: renesas: r8a77965: Add CPEX clock
  clk: renesas: r8a7796: Add CPEX clock
  clk: renesas: r8a7795: Add CPEX clock
  clk: renesas: r8a774a1: Add CPEX clock
  dt-bindings: clock: r8a7796: Remove CSIREF clock
  dt-bindings: clock: r8a7795: Remove CSIREF clock
2018-12-07 12:34:11 -08:00
Niklas Söderlund 36c4da4f55 clk: renesas: rcar-gen3: Add HS400 quirk for SD clock
On H3 (ES1.x, ES2.0) and M3-W (ES1.0, ES1.1) the clock setting for HS400
needs a quirk to function properly. The reason for the quirk is that
there are two settings which produces same divider value for the SDn
clock. On the effected boards the one currently selected results in
HS400 not working.

This change uses the same method as the Gen2 CPG driver and simply
ignores the first clock setting as this is the offending one when
selecting the settings. Which of the two possible settings is used have
no effect for SDR104.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-12-07 11:45:06 +01:00
Niklas Söderlund e2f4dd1f5b clk: renesas: rcar-gen3: Add documentation for SD clocks
Document the known use cases of the different clock settings. This is
useful as different SoC and ES versions use different settings to do
the same thing as there is more than one combination to achieve the
same SDn clock speed.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-12-07 11:45:03 +01:00
Niklas Söderlund ecda0a09fa clk: renesas: rcar-gen3: Set state when registering SD clocks
The driver tries to figure out which state a SD clock is in when the
clock is registered, instead of setting a known state. This can be
problematic for two reasons.

1. If the clock driver can't figure out the state of the clock,
   registration of the clock fails, and setting of a known state by a
   clock user is not possible.

2. The state of the clock depends on if and how the bootloader
   configured it. The driver only checks that the rate is known, not if
   the clock is stopped or not for example.

Fix this by setting a known state and making sure the clock is stopped.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2018-12-07 11:45:00 +01:00
Geert Uytterhoeven c0f8584f05 clk: renesas: r8a77995: Simplify PLL3 multiplier/divider
116/6 can be simplified to 58/3.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2018-12-04 10:30:16 +01:00
Geert Uytterhoeven 6155bfa32c clk: renesas: r8a77995: Add missing CPEX clock
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Feb 28, 2018) added
the CPEX clock on R-Car D3.  This clock can be selected as a clock
source for CMT1 (Compare Match Timer Type 1).

Add the missing clock to the DT bindings header, and implement support
for it in the clock driver.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2018-12-04 10:30:05 +01:00
Geert Uytterhoeven 846dbb405b clk: renesas: r8a77995: Remove non-existent SSP clocks
The R-Car Gen3 HardWare Manual Errata for Rev. 0.80 (Dec 22, 2017, and
Feb 28, 2018) removed the SSPSRC, SSP1, and SSP2 clocks on R-Car D3, as
this SoC does not have a Stream and Security Processor.

As these definitions were never used, they can just be removed.
The freed slots in the DT bindings header must not be reused, though.

Fixes: 714c53aa2e ("clk: renesas: Add r8a77995 CPG Core Clock Definitions")
Fixes: d71e851d82 ("clk: renesas: cpg-mssr: Add R8A77995 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2018-12-04 10:30:02 +01:00
Geert Uytterhoeven a5883a387f clk: renesas: r8a77995: Remove non-existent VIN5-7 module clocks
R-Car Gen3 Hardware Manual Errata for Rev 0.80 of February 28, 2018,
removed the module clocks for the Video Input Module (VIN) channels 5-7
on R-Car D3, as they do not exist on this SoC.

Fixes: d71e851d82 ("clk: renesas: cpg-mssr: Add R8A77995 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
2018-12-04 10:29:59 +01:00