Commit graph

305 commits

Author SHA1 Message Date
Linus Torvalds 916f562fb2 This round of clk driver and framework updates is heavy on the driver update
side. The two main highlights in the core framework are the addition of an bulk
 clk_get API that handles optional clks and an extra debugfs file that tells the
 developer about the current parent of a clk.
 
 The driver updates are dominated by i.MX in the diffstat, but that is mostly
 because that SoC has started converting to the clk_hw style of clk
 registration. The next big update is in the Amlogic meson clk driver that
 gained some support for audio, cpu, and temperature clks while fixing some PLL
 issues. Finally, the biggest thing that stands out is the conversion of a large
 part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses
 less strings and more pointer comparisons to match clk parents and children up.
 
 In general, it looks like we have a lot of little fixes and tweaks here and
 there to clk data along with the normal addition of a handful of new drivers
 and a couple new core framework features.
 
 Core:
  - Add a 'clk_parent' file in clk debugfs
  - Add a clk_bulk_get_optional() API (with devm too)
 
 New Drivers:
  - Support gated clk controller on MIPS based BCM63XX SoCs
  - Support SiLabs Si5341 and Si5340 chips
  - Support for CPU clks on Raspberry Pi devices
  - Audsys clock driver for MediaTek MT8516 SoCs
 
 Updates:
  - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
  - Small frequency support for SiLabs Si544 chips
  - Slow clk support for AT91 SAM9X60 SoCs
  - Remove dead code in various clk drivers (-Wunused)
  - Support for Marvell 98DX1135 SoCs
  - Get duty cycle of generic pwm clks
  - Improvement in mmc phase calculation and cleanup of some rate defintions
  - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
  - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
  - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
  - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
  - Add clks for new Exynos5422 Dynamic Memory Controller driver
  - Clock definition for Exynos4412 Mali
  - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
  - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
  - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
  - TI clock probing done from DT by default instead of firmware
  - Fix Amlogic Meson mpll fractional part and spread sprectrum issues
  - Add Amlogic meson8 audio clocks
  - Add Amlogic g12a temperature sensors clocks
  - Add Amlogic g12a and g12b cpu clocks
  - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
  - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
  - Add Clock Domain support on Renesas RZ/N1
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEE9L57QeeUxqYDyoaDrQKIl8bklSUFAl0uBEERHHNib3lkQGtl
 cm5lbC5vcmcACgkQrQKIl8bklSWucw/9ELKlfvdxrc8mdIuzt+CpKdNiSG88shXY
 hF+vnuE6Jhv5hmlbA/DbplPTAnHT/FQF65/GPQMAYy2wYO6CjleNxQyepiVv4h8/
 tWoXu5vYZXubtQyMnYTffREzjYFPBNAscLUhXNwJKRno7nT0qKCk62WgOMfaW/KN
 lP5dKmrL7rdJDUvxHEStrwP515Lg5Wkhj3+XzgbgFUKGuGlvHfwUOEZucT++kqhu
 Z1vMjPv2ksHQf3r15BsbX/6jMIONEt2Xd6jA3Lm7ebDXJl2hjX4Gq0Kkl5pmkj2w
 F0V7Tw4XYk6DkSl7HQaOBgQ8KV0Mw2L8Vj6eEDhUwx6wPGlQ5YTKkUCJkjs0mUyb
 UpO3TuPFN2W0hsTNDzwYpjqcfodDn159XJcduv1/ZpIanUvHgx0uVzQ7iwwYwW+l
 VR4SipY5AEn9hpief30X7TAUSKsE4do58imYeoGBrq78zdsJaEcDAMX7AcYdXVQ9
 ahBS8ME/d1JEBNdRsSW7eTAfu8dZdI08uR8/T37GRG59XyZSjsyVmZ6kHCYrBygF
 AyLNMsXMCbW1rOoIpWkuGMD86XZy40laLg8T7WWTaq28t1VQ0BaBTGM4/eEexs3p
 FhZ1M7aH+PsDLrI2IGTBt/4xAMv+dhDS7HnxRlOONbWnLWVqmR+tYzF0aCkqJCmd
 O2zWCGffeYs=
 =mK0C
 -----END PGP SIGNATURE-----

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round of clk driver and framework updates is heavy on the driver
  update side. The two main highlights in the core framework are the
  addition of an bulk clk_get API that handles optional clks and an
  extra debugfs file that tells the developer about the current parent
  of a clk.

  The driver updates are dominated by i.MX in the diffstat, but that is
  mostly because that SoC has started converting to the clk_hw style of
  clk registration. The next big update is in the Amlogic meson clk
  driver that gained some support for audio, cpu, and temperature clks
  while fixing some PLL issues. Finally, the biggest thing that stands
  out is the conversion of a large part of the Allwinner sunxi-ng driver
  to the new clk parent scheme that uses less strings and more pointer
  comparisons to match clk parents and children up.

  In general, it looks like we have a lot of little fixes and tweaks
  here and there to clk data along with the normal addition of a handful
  of new drivers and a couple new core framework features.

  Core:
   - Add a 'clk_parent' file in clk debugfs
   - Add a clk_bulk_get_optional() API (with devm too)

  New Drivers:
   - Support gated clk controller on MIPS based BCM63XX SoCs
   - Support SiLabs Si5341 and Si5340 chips
   - Support for CPU clks on Raspberry Pi devices
   - Audsys clock driver for MediaTek MT8516 SoCs

  Updates:
   - Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
   - Small frequency support for SiLabs Si544 chips
   - Slow clk support for AT91 SAM9X60 SoCs
   - Remove dead code in various clk drivers (-Wunused)
   - Support for Marvell 98DX1135 SoCs
   - Get duty cycle of generic pwm clks
   - Improvement in mmc phase calculation and cleanup of some rate defintions
   - Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
   - Add GPIO, SNVS and GIC clocks for i.MX8 drivers
   - Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
   - Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
   - Add clks for new Exynos5422 Dynamic Memory Controller driver
   - Clock definition for Exynos4412 Mali
   - Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
   - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
   - Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
   - TI clock probing done from DT by default instead of firmware
   - Fix Amlogic Meson mpll fractional part and spread sprectrum issues
   - Add Amlogic meson8 audio clocks
   - Add Amlogic g12a temperature sensors clocks
   - Add Amlogic g12a and g12b cpu clocks
   - Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
   - Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
   - Add Clock Domain support on Renesas RZ/N1"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
  clk: consoldiate the __clk_get_hw() declarations
  clk: sprd: Add check for return value of sprd_clk_regmap_init()
  clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
  clk: Add Si5341/Si5340 driver
  dt-bindings: clock: Add silabs,si5341
  clk: clk-si544: Implement small frequency change support
  clk: add BCM63XX gated clock controller driver
  devicetree: document the BCM63XX gated clock bindings
  clk: at91: sckc: use dedicated functions to unregister clock
  clk: at91: sckc: improve error path for sama5d4 sck registration
  clk: at91: sckc: remove unnecessary line
  clk: at91: sckc: improve error path for sam9x5 sck register
  clk: at91: sckc: add support to free slow clock osclillator
  clk: at91: sckc: add support to free slow rc oscillator
  clk: at91: sckc: add support to free slow oscillator
  clk: rockchip: export HDMIPHY clock on rk3228
  clk: rockchip: add watchdog pclk on rk3328
  clk: rockchip: add clock id for hdmi_phy special clock on rk3228
  clk: rockchip: add clock id for watchdog pclk on rk3328
  clk: at91: sckc: add support for SAM9X60
  ...
2019-07-17 10:07:48 -07:00
Chris Paterson 85f946ffd3 scripts/spelling.txt: add spelling fix for prohibited
Misspelling 'prohibited' is quite common in the real world, although
surprisingly not so much in the Linux Kernel.  In addition to fixing the
typo we may as well add it to the spelling checker.

Also adding the present participle (prohibiting).

Link: http://lkml.kernel.org/r/20190514153341.22540-1-chris.paterson2@renesas.com
Fixes: 5bf2fbbef5 ("clk: renesas: cpg-mssr: Add r8a77470 support")
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-12 11:05:41 -07:00
Geert Uytterhoeven ec2b827be3 clk: renesas: cpg-mssr: Use [] to denote a flexible array member
Flexible array members should be denoted using [] instead of [0], else
gcc will not warn when they are no longer at the end of the structure.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-20 11:37:16 +02:00
Geert Uytterhoeven 8f5e20b6b8 clk: renesas: cpg-mssr: Combine driver-private and clock array allocation
Make cpg_mssr_priv.clks[] a flexible array member, and use the new
struct_size() helper, to combine the allocation of the driver-private
structure and array of available clocks.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-20 11:37:00 +02:00
Geert Uytterhoeven a79f5836bd clk: renesas: mstp: Combine group-private and clock array allocation
Make mstp_clock_group.clks[] a flexible array member, and use the new
struct_size() helper, to combine the allocation of the group-private
structure and array of module clocks.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-20 11:36:44 +02:00
Geert Uytterhoeven ba0386111c clk: renesas: div6: Combine clock-private and parent array allocation
Make div6_clock.parents[] a flexible array member, and use the new
struct_size() helper, to combine the allocation of the clock-private
structure and array of parent clocks.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-20 11:36:29 +02:00
Geert Uytterhoeven d2e4cb45af clk: renesas: cpg-mssr: Update kerneldoc for struct cpg_mssr_priv
New fields were added, but kerneldoc was forgotten, or inserted at the
wrong place.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-20 11:36:16 +02:00
Fabrizio Castro c1324171a9 clk: renesas: r8a774a1: Add TMU clock
This patch adds the TMU clocks to the R8A774A1 SoC.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-06-18 11:02:51 +02:00
Jacopo Mondi fa59290e3d clk: renesas: r8a77995: Add CMM clocks
Add clock definitions for CMM units on Renesas R-Car D3.

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 11:03:03 +02:00
Jacopo Mondi 08911c4a8e clk: renesas: r8a77990: Add CMM clocks
Add clock definitions for CMM units on Renesas R-Car E3.

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 11:02:56 +02:00
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