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2020-06-17clk: rockchip: Handle clock tree for rk3288w variantMylène Josserand1-2/+18
The revision rk3288w has a different clock tree about "hclk_vio" clock, according to the BSP kernel code. This patch handles this difference by detecting which device-tree we are using. If it is a "rockchip,rk3288-cru", let's register the clock tree as it was before. If the device-tree node is "rockchip,rk3288w-cru", we will apply the difference with this version of this SoC. Noticed that this new device-tree compatible must be handled in bootloader such as u-boot. Signed-off-by: Mylène Josserand <mylene.josserand@collabora.com> Link: https://lore.kernel.org/r/20200602080644.11333-2-mylene.josserand@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-06-15clk: rockchip: convert rk3036 pll type to use internal lock statusHeiko Stuebner1-3/+23
The rk3036 pll type exposes its lock status in both its pllcon registers as well as the General Register Files. To remove one dependency convert it to the "internal" lock status, similar to how rk3399 handles it. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200129163821.1547295-3-heiko@sntech.de
2020-06-15clk: rockchip: convert basic pll lock_wait to use regmap_read_poll_timeoutHeiko Stuebner1-15/+6
Instead of open coding the polling of the lock status, use the handy regmap_read_poll_timeout for this. As the pll locking is normally blazingly fast and we don't want to incur additional delays, we're not doing any sleeps similar to for example the imx clk-pllv4 and define a very safe but still short timeout of 1ms. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200129163821.1547295-2-heiko@sntech.de
2020-06-15clk: rockchip: convert rk3399 pll type to use readl_relaxed_poll_timeoutHeiko Stuebner1-11/+12
Instead of open coding the polling of the lock status, use the handy readl_relaxed_poll_timeout for this. As the pll locking is normally blazingly fast and we don't want to incur additional delays, we're not doing any sleeps similar to for example the imx clk-pllv4 and define a very safe but still short timeout of 1ms. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20200129163821.1547295-1-heiko@sntech.de
2020-04-13clk: rockchip: fix incorrect configuration of rk3228 aclk_gpu* clocksJustin Swartz1-13/+4
The following changes prevent the unrecoverable freezes and rcu_sched stall warnings experienced in each of my attempts to take advantage of lima. Replace the COMPOSITE_NOGATE definition of aclk_gpu_pre with a COMPOSITE that retains the selection of HDMIPHY as the PLL source, but instead makes uses of the aclk_gpu PLL source gate and parent names defined by mux_pll_src_4plls_p rather than mux_aclk_gpu_pre_p. Remove the now unused mux_aclk_gpu_pre_p and the four named but also unused definitions (cpll_gpu, gpll_gpu, hdmiphy_gpu and usb480m_gpu) of the aclk_gpu PLL source gate. Use the correct gate offset for aclk_gpu and aclk_gpu_noc. Fixes: 307a2e9ac524 ("clk: rockchip: add clock controller for rk3228") Cc: stable@vger.kernel.org Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za> [double-checked against SoC manual and added fixes tag] Link: https://lore.kernel.org/r/20200114162503.7548-1-justin.swartz@risingedge.co.za Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-03-06clk: rockchip: fix mmc get phaseJerome Brunet1-2/+2
If the mmc clock has no rate, it can be assumed to be constant. In such case, there is no measurable phase shift. Just return 0 in this case instead of returning an error. Fixes: 2760878662a2 ("clk: Bail out when calculating phase fails during clk registration") Tested-by: Markus Reichl <m.reichl@fivetechno.de> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20200303192956.64410-1-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-12-24clk: let init callback return an error codeJerome Brunet1-11/+17
If the init callback is allowed to request resources, it needs a return value to report the outcome of such a request. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lkml.kernel.org/r/20190924123954.31561-3-jbrunet@baylibre.com Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-11-05clk: rockchip: protect the pclk_usb_grf as critical on px30Heiko Stuebner1-1/+2
Make this clock a real critical clock, so that writes to the usbphy grf always succeed. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20190917081903.25139-5-heiko@sntech.de
2019-11-05clk: rockchip: add video-related niu clocks as critical on px30Heiko Stuebner1-5/+10
Video-In and -Out interconnect clocks need to stay on all the time for the peripheral to work and we do not model the actual interconnect at this point. So mark them as critical for now. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20190917081903.25139-4-heiko@sntech.de
2019-11-05clk: rockchip: move px30 critical clocks to correct clock controllerHeiko Stuebner1-4/+4
The clocks in the px30 critical clock section are from the regular cru not the pmucru, so move them to the correct place. Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Link: https://lore.kernel.org/r/20190917081903.25139-3-heiko@sntech.de
2019-11-05clk: rockchip: Add div50 clocks for px30 sdmmc, emmc, sdio and nandcFinley Xiao1-4/+40
Some IPs, such as NAND, EMMC, SDIO and SDMMC need clock of 50% duty cycle, divfree50 can generate clock of 50% duty cycle even in odd value divisor. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20190917081903.25139-2-heiko@sntech.de
2019-10-31clk: rockchip: make clk_half_divider_ops staticBen Dooks (Codethink)1-2/+1
The clk_half_divider_ops is not used outside or declared outside of drivers/clk/rockchip/clk-half-divider.c so make it static to avoid the following warning: drivers/clk/rockchip/clk-half-divider.c:142:22: warning: symbol 'clk_half_divider_ops' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20191017105348.8061-1-ben.dooks@codethink.co.uk Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-09-05clk: rockchip: Add clock controller for the rk3308Finley Xiao3-0/+969
Add the clock tree definition for the new RK3308 SoC. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-07-25clk: rockchip: Fix -Wunused-const-variable in rv1108 clk driverNathan Huckleberry1-1/+0
Clang produces the following warning drivers/clk/rockchip/clk-rv1108.c:125:7: warning: unused variable 'mux_pll_src_3plls_p' [-Wunused-const-variable] PNAME(mux_pll_src_3plls_p) = { "apll", "gpll", "dpll" }; Looks like this variable was never used. Deleting it to remove the warning. Cc: clang-built-linux@googlegroups.com Link: https://github.com/ClangBuiltLinux/linux/issues/524 Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-07-17Merge tag 'clk-for-linus' of ↵Linus Torvalds8-46/+27
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 ...
2019-06-27clk: rockchip: export HDMIPHY clock on rk3228Heiko Stuebner1-1/+1
Export the hdmiphy clock mux via the newly added clock-id. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Justin Swartz <justin.swartz@risingedge.co.za>
2019-06-27clk: rockchip: add watchdog pclk on rk3328Heiko Stuebner1-0/+3
The watchdog pclk is controlled from the secure GRF but we still want to mention it explicitly to not use arbitary parent clocks in the devicetree wdt node, so add a SGRF_GATE for it. Suggested-by: Leonidas P. Papadakos <papadakospan@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-15clk: rockchip: convert pclk_wdt boilerplat to new SGRF_GATE macroHeiko Stuebner4-36/+12
Convert the boilerplate code for manual addition of the watchdog clock to the new SGRF_GATE macro for all affected socs. Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-14clk: rockchip: add a type from SGRF-controlled gate clocksHeiko Stuebner1-0/+4
Some clk gates on Rockchip SoCs are part of the SGRF (secure general register files) and thus only controllable from secure mode, with the most prominent example being the watchdog. In most cases we still want to define this as a real clock though, to have complete clock tree and not reference the generic base-clock from the devicetree. So far we've just defined this as factor-1-1 clocks in the clock init, so define a special clock-type for it so that this definition can be part of the general tree-definition and save some boilerplate code. Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-06clk: rockchip: Remove 48 MHz PLL rate from rk3288Douglas Anderson1-1/+0
The 48 MHz PLL rate is not present in the downstream chromeos-3.14 tree. Looking at history, it was originally removed in <https://crrev.com/c/265810> ("CHROMIUM: clk: rockchip: expand more clocks support") with no explanation. Much of that patch was later reverted in <https://crrev.com/c/284595> ("CHROMIUM: clk: rockchip: Revert more questionable PLL rates"), but that patch left in the removal of 48 MHz. What I wrote in that patch: > Note that the original change also removed the rate (48000000, 1, > 64, 32) from the table. I have no idea why that was squashed in > there, but that rate was invalid anyway (it appears to have an out > of bounds NO). I'm not putting that rate in. Reading the TRM I see that NO is defined as - NO: 1, 2-16 (even only) ...and furthermore only 4 bits are assigned for NO-1, which means that the highest NO we could even represent is 16. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282Thomas Gleixner1-11/+1
Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner17-170/+17
Based on 3 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-20clk: rockchip: add 1.464GHz cpu-clock rate to rk3228Justin Swartz1-0/+1
Add missing 1.464GHz clock rate to rk3228_cpuclk_rates[], which gets referenced in the operating points but wasn't defined till now. Signed-off-by: Justin Swartz <justin.swartz@risingedge.co.za> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-05-20clk: rockchip: Slightly more accurate math in rockchip_mmc_get_phase()Douglas Anderson1-3/+3
There's a bit of math in rockchip_mmc_get_phase() to calculate the "fine delay". This math boils down to: PSECS_PER_SEC = 1000000000000. ROCKCHIP_MMC_DELAY_ELEMENT_PSEC = 60 card_clk * ROCKCHIP_MMC_DELAY_ELEMENT_PSEC * 360 * x / PSECS_PER_SEC ...but we do it in pieces to avoid overflowing 32-bits. Right now we overdo it a little bit, though, and end up getting less accurate math than we could. Right now we do: DIV_ROUND_CLOSEST((card_clk / 1000000) * (ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10) * (360 / 10) * delay_num, PSECS_PER_SEC / 1000000 / 10 / 10) This is non-ideal because: A) The pins on Rockchip SoCs are rated to go at most 150 MHz, so the max card clock is 150 MHz. Even ignoring this the maximum SD card clock (for SDR104) would be 208 MHz. This means you can decrease your division by 100x and still not overflow: hex(208000000 / 10000 * 6 * 36 * 0xff) == 0x44497200 B) On many Rockchip SoCs we end up with a card clock that is actually 148500000 because we parent off the 297 MHz PLL. That means the math we're actually doing today is less than ideal. Specifically: 148500000 / 1000000 = 148 Let's fix the math to be slightly more accurate. NOTE: no known problems are fixed by this. It was found simply by code inspection. If you want to see the difference between the old and the new on a 148.5 MHz clock, this python can help: old = [x for x in (int(round(148 * 6 * 36 * x / 10000.)) for x in range(256)) if x < 90] new = [x for x in (int(round(1485 * 6 * 36 * x / 100000.)) for x in range(256)) if x < 90] The only differences are: delay_num=17 54=>55 delay_num=22 70=>71 delay_num=27 86=>87 Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-05-20clk: rockchip: Don't yell about bad mmc phases when gettingDouglas Anderson1-3/+1
At boot time, my rk3288-veyron devices yell with 8 lines that look like this: [ 0.000000] rockchip_mmc_get_phase: invalid clk rate This is because the clock framework at clk_register() time tries to get the phase but we don't have a parent yet. While the errors appear to be harmless they are still ugly and, in general, we don't want yells like this in the log unless they are important. There's no real reason to be yelling here. We can still return -EINVAL to indicate that the phase makes no sense without a parent. If someone really tries to do tuning and the clock is reported as 0 then we'll see the yells in rockchip_mmc_set_phase(). Fixes: 4bf59902b500 ("clk: rockchip: Prevent calculating mmc phase if clock rate is zero") Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-05-20clk: rockchip: Use clk_hw_get_rate() in MMC phase calculationDouglas Anderson1-2/+2
When calculating the MMC phase we can just use clk_hw_get_rate() instead of clk_get_rate(). This avoids recalculating the rate. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-05-15clk: Remove io.h from clk-provider.hStephen Boyd12-1/+13
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>
2019-05-07Merge branches 'clk-hisi', 'clk-lochnagar', 'clk-allwinner', 'clk-rockchip' ↵Stephen Boyd4-26/+60
and 'clk-qoriq' into clk-next - Mark UFS clk as critical on Hi-Silicon hi3660 SoCs - Support for Cirrus Logic Lochnagar clks * clk-hisi: clk: hi3660: Mark clk_gate_ufs_subsys as critical * clk-lochnagar: clk: lochnagar: Add support for the Cirrus Logic Lochnagar clk: lochnagar: Add initial binding documentation * clk-allwinner: clk: sunxi-ng: sun5i: Export the MBUS clock clk: sunxi-ng: a83t: Add pll-video0 as parent of csi-mclk clk: sunxi-ng: h6: Allow video & vpu clocks to change parent rate clk: sunxi-ng: h6: Preset hdmi-cec clock parent clk: sunxi: Add Kconfig options clk: sunxi-ng: f1c100s: fix USB PHY gate bit offset clk: sunxi-ng: Allow DE clock to set parent rate * clk-rockchip: clk: rockchip: undo several noc and special clocks as critical on rk3288 clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-type clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288 clk: rockchip: Limit use of USB PHY clock to USB on rk3288 clk: rockchip: Fix video codec clocks on rk3288 clk: rockchip: Make rkpwm a critical clock on rk3288 clk: rockchip: fix wrong clock definitions for rk3328 * clk-qoriq: clk: qoriq: increase array size of cmux_to_group dt-bindings: qoriq-clock: Add ls1028a chip compatible string clk: qoriq: Add ls1028a clock configuration clk: qoriq: add more PLL divider clocks support dt-bindings: qoriq-clock: add more PLL divider clocks support
2019-04-23clk: core: replace clk_{readl,writel} with {readl,writel}Jonas Gorski2-4/+4
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>
2019-04-23clk: rockchip: undo several noc and special clocks as critical on rk3288Douglas Anderson1-9/+4
This is mostly a revert of commit 55bb6a633c33 ("clk: rockchip: mark noc and some special clk as critical on rk3288") except that we're keeping "pmu_hclk_otg0" as critical still. NOTE: turning these clocks off doesn't seem to do a whole lot in terms of power savings (checking the power on the logic rail). It appears to save maybe 1-2mW. ...but still it seems like we should turn the clocks off if they aren't needed. About "pmu_hclk_otg0" (the one clock from the original commit we're still keeping critical) from an email thread: > pmu ahb clock > > Function: Clock to pmu module when hibernation and/or ADP is > enabled. Must be greater than or equal to 30 MHz. > > If the SOC design does not support hibernation/ADP function, only have > hclk_otg, this clk can be switched according to the usage of otg. > If the SOC design support hibernation/ADP, has two clocks, hclk_otg and > pmu_hclk_otg0. > Hclk_otg belongs to the closed part of otg logic, which can be switched > according to the use of otg. > > pmu_hclk_otg0 belongs to the always on part. > > As for whether pmu_hclk_otg0 can be turned off when otg is not in use, > we have not tested. IC suggest make pmu_hclk_otg0 always on. For the rest of the clocks: atclk: No documentation about this clock other than that it goes to the CPU. CPU functions fine without it on. Maybe needed for JTAG? jtag: Presumably this clock is only needed if you're debugging with JTAG. It doesn't seem like it makes sense to waste power for every rk3288 user. In any case to do JTAG you'd need private patches to adjust the pinctrl the mux the JTAG out anyway. pclk_dbg, pclk_core_niu: On veyron Chromebooks we turn these two clocks on only during kernel panics in order to access some coresight registers. Since nothing in the upstream kernel does this we should be able to leave them off safely. Maybe also needed for JTAG? hsicphy12m_xin12m: There is no indication of why this clock would need to be turned on for boards that don't use HSIC. pclk_ddrupctl[0-1], pclk_publ0[0-1]: On veyron Chromebooks we turn these 4 clocks on only when doing DDR transitions and they are off otherwise. I see no reason why they'd need to be on in the upstream kernel which doesn't support DDRFreq. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-12clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-typeFinley Xiao2-3/+29
The div offset of some clocks are different from their mux offset and the COMPOSITE clock-type require that div and mux offset are the same, so add a new COMPOSITE_DIV_OFFSET clock-type to handle that. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-12clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288Douglas Anderson1-0/+11
Experimentally it can be seen that going into deep sleep (specifically setting PMU_CLR_DMA and PMU_CLR_BUS in RK3288_PMU_PWRMODE_CON1) appears to fail unless "aclk_dmac1" is on. The failure is that the system never signals that it made it into suspend on the GLOBAL_PWROFF pin and it just hangs. NOTE that it's confirmed that it's the actual suspend that fails, not one of the earlier calls to read/write registers. Specifically if you comment out the "PMU_GLOBAL_INT_DISABLE" setting in rk3288_slp_mode_set() and then comment out the "cpu_do_idle()" call in rockchip_lpmode_enter() then you can exercise the whole suspend path without any crashing. This is currently not a problem with suspend upstream because there is no current way to exercise the deep suspend code. However, anyone trying to make it work will run into this issue. This was not a problem on shipping rk3288-based Chromebooks because those devices all ran on an old kernel based on 3.14. On that kernel "aclk_dmac1" appears to be left on all the time. There are several ways to skin this problem. A) We could add "aclk_dmac1" to the list of critical clocks and that apperas to work, but presumably that wastes power. B) We could keep a list of "struct clk" objects to enable at suspend time in clk-rk3288.c and use the standard clock APIs. C) We could make the rk3288-pmu driver keep a list of clocks to enable at suspend time. Presumably this would require a dts and bindings change. D) We could just whack the clock on in the existing syscore suspend function where we whack a bunch of other clocks. This is particularly easy because we know for sure that the clock's only parent ("aclk_cpu") is a critical clock so we don't need to do anything more than ungate it. In this case I have chosen D) because it seemed like the least work, but any of the other options would presumably also work fine. Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-12clk: rockchip: Limit use of USB PHY clock to USB on rk3288Matthias Kaehlcke1-2/+2
The USB PHY clock can be configured as (grand) parent of uart0_sclk and sclk_gpu. It has been observed that UART0 doesn't work reliably in high speed mode with the PHY clock as input when certain USB devices are plugged to the USB HOST1 port (see https://crrev.com/c/320543). Prefix the name of the PHY clock with a '.' in the non-USB muxes to effectively remove the clock as input from these muxes. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-12clk: rockchip: Fix video codec clocks on rk3288Douglas Anderson1-2/+2
It appears that there is a typo in the rk3288 TRM. For GRF_SOC_CON0[7] it says that 0 means "vepu" and 1 means "vdpu". It's the other way around. How do I know? Here's my evidence: 1. Prior to commit 4d3e84f99628 ("clk: rockchip: describe aclk_vcodec using the new muxgrf type on rk3288") we always pretended that we were using "aclk_vdpu" and the comment in the code said that this matched the default setting in the system. In fact the default setting is 0 according to the TRM and according to reading memory at bootup. In addition rk3288-based Chromebooks ran like this and the video codecs worked. 2. With the existing clock code if you boot up and try to enable the new VIDEO_ROCKCHIP_VPU as a module (and without "clk_ignore_unused" on the command line), you get errors like "failed to get ack on domain 'pd_video', val=0x80208". After flipping vepu/vdpu things init OK. 3. If I export and add both the vepu and vdpu to the list of clocks for RK3288_PD_VIDEO I can get past the power domain errors, but now I freeze when the vpu_mmu gets initted. 4. If I just mark the "vdpu" as IGNORE_UNUSED then everything boots up and probes OK showing that somehow the "vdpu" was important to keep enabled. This is because we were actually using it as a parent. 5. After this change I can hack "aclk_vcodec_pre" to parent from "aclk_vepu" using assigned-clocks and the video codec still probes OK. 6. Rockchip has said so on the mailing list [1]. ...so let's fix it. Let's also add CLK_SET_RATE_PARENT to "aclk_vcodec_pre" as suggested by Jonas Karlman. Prior to the same commit you could do clk_set_rate() on "aclk_vcodec" and it would change "aclk_vdpu". That's because "aclk_vcodec" was a simple gate clock (always gets CLK_SET_RATE_PARENT) and its direct parent was "aclk_vdpu". After that commit "aclk_vcodec_pre" gets in the way so we need to add CLK_SET_RATE_PARENT to it too. [1] https://lkml.kernel.org/r/1d17b015-9e17-34b9-baf8-c285dc1957aa@rock-chips.com Fixes: 4d3e84f99628 ("clk: rockchip: describe aclk_vcodec using the new muxgrf type on rk3288") Suggested-by: Jonas Karlman <jonas@kwiboo.se> Suggested-by: Randy Li <ayaka@soulik.info> Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-04-11clk: rockchip: Make rkpwm a critical clock on rk3288Douglas Anderson1-1/+3
Most rk3288-based boards are derived from the EVB and thus use a PWM regulator for the logic rail. However, most rk3288-based boards don't specify the PWM regulator in their device tree. We'll deal with that by making it critical. NOTE: it's important to make it critical and not just IGNORE_UNUSED because all PWMs in the system share the same clock. We don't want another PWM user to turn the clock on and off and kill the logic rail. This change is in preparation for actually having the PWMs in the rk3288 device tree actually point to the proper PWM clock. Up until now they've all pointed to the clock for the old IP block and they've all worked due to the fact that rkpwm was IGNORE_UNUSED and that the clock rates for both clocks were the same. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-03-18clk: rockchip: fix wrong clock definitions for rk3328Jonas Karlman1-9/+9
This patch fixes definition of several clock gate and select register that is wrong for rk3328 referring to the TRM and vendor kernel. Also use correct number of softrst registers. Fix clock definition for: - clk_crypto - aclk_h265 - pclk_h265 - aclk_h264 - hclk_h264 - aclk_axisram - aclk_gmac - aclk_usb3otg Fixes: fe3511ad8a1c ("clk: rockchip: add clock controller for rk3328") Cc: stable@vger.kernel.org Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Tested-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-01-07clk: rockchip: add CLK_SET_RATE_PARENT for rk3066 lcdc dclksFinley Xiao1-2/+2
Add CLK_SET_RATE_PARENT for both rk3066 lcdc dclk. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Johan Jonker <jbx6244@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-01-07clk: rockchip: fix frac settings of GPLL clock for rk3328Katsuhiro Suzuki1-6/+6
This patch fixes settings of GPLL frequency in fractional mode for rk3328. In this mode, FOUTVCO is calcurated by following formula: FOUTVCO = FREF * FBDIV / REFDIV + ((FREF * FRAC / REFDIV) >> 24) The problem is in FREF * FRAC >> 24 term. This result always lacks one from target value is specified by rate member. For example first itme of rk3328_pll_frac_rate originally has - rate : 1016064000 - refdiv: 3 - fbdiv : 127 - frac : 134217 - FREF * FBDIV / REFDIV = 1016000000 - (FREF * FRAC / REFDIV) >> 24 = 63999 Thus calculated rate is 1016063999. It seems wrong. If frac has 134218 (it is increased 1 from original value), second term is 64000. All other items have same situation. So this patch adds 1 to frac member in all items of rk3328_pll_frac_rate. Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net> Acked-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-26clk: rockchip: add clock-id to gate of ACODEC for rk3328Katsuhiro Suzuki1-1/+1
Add the newly added clock-id for PCLK_ACODECPHY to the gate-clock, so that it gets usable from devicetree. Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-19clk: rockchip: fix I2S1 clock gate register for rk3328Katsuhiro Suzuki1-1/+1
This patch fixes definition of I2S1 clock gate register for rk3328. Current setting is not related I2S clocks. - bit6 of CRU_CLKGATE_CON0 means clk_ddrmon_en - bit6 of CRU_CLKGATE_CON1 means clk_i2s1_en Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-15clk: rockchip: make rk3188 hclk_vio_bus criticalMark Yao1-1/+2
Vop register access request hclk_vio_bus. Signed-off-by: Mark Yao <mark.yao@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-15clk: rockchip: fix rk3188 sclk_mac_lbtest parameter orderingHeiko Stuebner1-2/+2
Similar to commit a9f0c0e56371 ("clk: rockchip: fix rk3188 sclk_smc gate data") there is one other gate clock in the rk3188 clock driver with a similar wrong ordering, the sclk_mac_lbtest. So fix it as well. Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-15clk: rockchip: fix rk3188 sclk_smc gate dataFinley Xiao1-2/+2
Fix sclk_smc gate data. Change variable order, flags come before the register address. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Johan Jonker <jbx9999@hotmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-11-12clk: rockchip: fix typo in rk3188 spdif_frac parentJohan Jonker1-1/+1
Fix typo in common_clk_branches. Make spdif_pre parent of spdif_frac. Fixes: 667464208989 ("clk: rockchip: include downstream muxes into fractional dividers") Cc: stable@vger.kernel.org Signed-off-by: Johan Jonker <jbx9999@hotmail.com> Acked-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-10-17clk: rockchip: Fix static checker warning in rockchip_ddrclk_get_parent callEnric Balletbo i Serra1-4/+0
Fixes the signedness bug returning '(-22)' on the return type by removing the sanity checker in rockchip_ddrclk_get_parent(). The function should return and unsigned value only and it's safe to remove the sanity checker as the core functions that call get_parent like clk_core_get_parent_by_index already ensures the validity of the clk index returned (index >= core->num_parents). Fixes: a4f182bf81f18 ("clk: rockchip: add new clock-type for the ddrclk") Cc: stable@vger.kernel.org Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-10-11clk: rockchip: use the newly added clock-id for hdmi on RK3066Heiko Stuebner1-1/+1
Export the clock for devicetree usage via the newly added id. Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-10-11clk: rockchip: fix wrong mmc sample phase shift for rk3328Ziyuan Xu1-4/+4
mmc sample shift is 0 for RK3328 referring to the TRM. So fix them. Fixes: fe3511ad8a1c ("clk: rockchip: add clock controller for rk3328") Cc: stable@vger.kernel.org Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-31clk: rockchip: improve rk3288 pll rates for better hdmi outputUrja Rannikko1-4/+25
Add and correct PLL rates for better hdmi output. This includes minimizing jitter on 213 MHz for better 71 MHz, 250.5 MHz for better 83.5 MHz, 428 MHz for better 25.175 Mhz, low jitter 273 MHz for better 68.25 mhz, 356 MHz for better 118.68 Mhz and 300MHz. Increase the used Fvco for 308, 324 MHz, 292.5 MHz, 273.6 MHz, 238 MHz and 216 MHz. And add some additional rates allowing to reach better hdmi-related rates in general. These match the rates used by ChromeOS, so have been quite widely tested. Signed-off-by: Urja Rannikko <urjaman@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2018-08-07clk: rockchip: Add pclk_rkpwm_pmu to PMU critical clocks in rk3399Levin Du1-0/+1
PWM2 is commonly used to control voltage of PWM regulator of VDD_LOG in RK3399. On the Firefly-RK3399 board, PWM2 outputs 40 KHz square wave from power on and the VDD_LOG is about 0.9V. When the kernel boots normally into the system, the PWM2 keeps outputing PWM signal. But the kernel hangs randomly after "Starting kernel ..." line on that board. When it happens, PWM2 outputs high level which causes VDD_LOG drops to 0.4V below the normal operating voltage. By adding "pclk_rkpwm_pmu" to the rk3399_pmucru_critical_clocks array, PWM clock is ensured to be prepared at startup and the PWM2 output is normal. After repeated tests, the early boot hang is gone. This patch works on both Firefly-RK3399 and ROC-RK3399-PC boards. Signed-off-by: Levin Du <djw@t-chip.com.cn> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-17 13:24:10 +0300