- 14 Nov, 2017 5 commits
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Stephen Boyd authored
* clk-hikey: clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu' clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep() clk: hi3660: fix incorrect uart3 clock freqency clk: hi6220: mark clock cs_atb_syspll as critical
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Stephen Boyd authored
Merge tag 'tegra-for-4.15-clk-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next Pull tegra clk drivers updates from Thierry Reding: This contains cleanups and minor fixes for the Tegra clock driver. * tag 'tegra-for-4.15-clk-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: clk: tegra: Use readl_relaxed_poll_timeout_atomic() in tegra210_clock_init() clk: tegra: dfll: Fix drvdata overwriting issue clk: tegra: Fix cclk_lp divisor register clk: tegra: Bump SCLK clock rate to 216 MHz clk: tegra: Use common definition of APBDMA clock gate clk: tegra: Correct parent of the APBDMA clock clk: tegra: Add AHB DMA clock entry clk: tegra: Mark APB clock as critical clk: tegra: Make tegra_clk_pll_params __ro_after_init clk: tegra: Fix sor1_out clock implementation clk: tegra: Use tegra_clk_register_periph_data() clk: tegra: Add peripheral clock registration helper clk: tegra: Check BPMP response return code dt-bindings: clock: tegra: Add sor1_out clock firmware: tegra: Propagate error code to caller
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Shawn Guo authored
Other than 'mmc_mux', 'clk_sdio0_ciu' uses a different parent mux clock. Let's add this mux clock as 'sdio0_mux', and correct the parent of 'clk_sdio0_ciu' to be it. Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org>
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Markus Elfring authored
clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep() Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Reviewed-by:
Leo Yan <leo.yan@linaro.org> Signed-off-by:
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Zhong Kaihua authored
UART3 clock rate is doubled in previous commit. This error is not detected until recently a mezzanine board which makes real use of uart3 port (through LS connector of 96boards) was setup and tested on hi3660-hikey960 board. This patch changes clock source rate of clk_factor_uart3 to 100000000. Signed-off-by:
Zhong Kaihua <zhongkaihua@huawei.com> Signed-off-by:
Guodong Xu <guodong.xu@linaro.org> Signed-off-by:
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- 01 Nov, 2017 9 commits
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Leo Yan authored
Clock cs_atb_syspll is pll used for coresight trace bus; when clock cs_atb_syspll is disabled and operates its child clock node cs_atb results in system hang. So mark clock cs_atb_syspll as critical to keep it enabled. Cc: Guodong Xu <guodong.xu@linaro.org> Cc: Zhangfei Gao <zhangfei.gao@linaro.org> Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by:
Michael Turquette <mturquette@baylibre.com> Link: lkml.kernel.org/r/1504226835-2115-2-git-send-email-leo.yan@linaro.org
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Nicolin Chen authored
Below is the call trace of tegra210_init_pllu() function: start_kernel() -> time_init() --> of_clk_init() ---> tegra210_clock_init() ----> tegra210_pll_init() -----> tegra210_init_pllu() Because the preemption is disabled in the start_kernel before calling time_init, tegra210_init_pllu is actually in an atomic context while it includes a readl_relaxed_poll_timeout that might sleep. So this patch just changes this readl_relaxed_poll_timeout() to its atomic version. Signed-off-by:
Nicolin Chen <nicoleotsuka@gmail.com> Acked-By:
Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by:
Thierry Reding <treding@nvidia.com>
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Nicolin Chen authored
Both tegra124-dfll and clk-dfll are using platform_set_drvdata to set drvdata of the exact same pdev while they use different pointers for the drvdata. Once the drvdata has been overwritten by tegra124-dfll, clk-dfll will never get its td pointer as it expects. Since tegra124-dfll merely needs its soc pointer in its remove function, this patch fixes the bug by removing the overwriting in the tegra124-dfll file and letting the tegra_dfll_unregister return an soc pointer for it. Signed-off-by:
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Michał Mirosław authored
According to comments in code and common sense, cclk_lp uses its own divisor, not cclk_g's. Fixes: b08e8c0e ("clk: tegra: add clock support for Tegra30") Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-By:
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Dmitry Osipenko authored
AHB DMA is a running on 1/2 of SCLK rate, APB DMA on 1/4. Increasing SCLK rate results in an increased DMA transfer rate. Signed-off-by:
Dmitry Osipenko <digetx@gmail.com> Acked-By:
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Dmitry Osipenko authored
The APBDMA clock is defined in the common clock gates table that is used by Tegra30+. Tegra20 can use it too, let's remove the custom definition and use the common one. Signed-off-by:
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Dmitry Osipenko authored
APBDMA represents a clock gate to the APB DMA controller, the actual clock source for the controller is PCLK. Signed-off-by:
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Dmitry Osipenko authored
AHB DMA engine presents on Tegra20/30. Add missing clock entries, so that driver for the AHB DMA controller could be implemented. Signed-off-by:
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Jon Hunter authored
Currently, the APB clock is registered with the CLK_IGNORE_UNUSED flag to prevent the clock from being disabled if unused on boot. However, even if it is used, it still needs to be always kept enabled so that it doesn't get inadvertently disabled when all of its children are, and so update the flag for the APB clock to be CLK_IS_CRITICAL. Suggested-by:
Jon Hunter <jonathanh@nvidia.com> Acked-By:
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- 31 Oct, 2017 5 commits
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Stephen Boyd authored
Merge tag 'v4.15-rockchip-clk-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next Pull Rockchip clk drivers updates from Heiko Stuebner: - new clock ids for rk3188 and rk3368 - removal of a superfluous memory allocation error message * tag 'v4.15-rockchip-clk-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: clk: rockchip: use new cif/vdpu clock ids on rk3188 clk: rockchip: export clock pclk_efuse_256 for RK3368 SoCs clk: rockchip: add more rk3188 graphics clock ids clk: rockchip: add clock id for PCLK_EFUSE256 of RK3368 SoCs clk: rockchip: Remove superfluous error message in rockchip_clk_register_cpuclk()
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Stephen Boyd authored
Merge tag 'clk-renesas-for-v4.15-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull Renesas clk driver updates from Geert Uytterhoeven: - Add support for the second display unit clock on RZ/G1E, - Add git repository to MAINTAINERS, - Add suspend/resume support for R-Car Gen3 CPG/MSSR, - Small fixes and cleanups. * tag 'clk-renesas-for-v4.15-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: rcar-gen3: Restore R clock during resume clk: renesas: rcar-gen3: Restore SDHI clocks during resume clk: renesas: div6: Restore clock state during resume clk: renesas: cpg-mssr: Add support to restore core clocks during resume clk: renesas: cpg-mssr: Restore module clocks during resume MAINTAINERS: Add git repository to Renesas clock driver section clk: renesas: cpg-mssr: Add du1 clock to R8A7745 clk: renesas: rz: clk-rz is meant for RZ/A1 clk: renesas: r8a77995: Correct parent clock of INTC-AP clk: renesas: r8a7796: Correct parent clock of INTC-AP clk: renesas: r8a7795: Correct parent clock of INTC-AP
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git://github.com/baylibre/clk-mesonStephen Boyd authored
Pull Amlogic clock driver updates from Neil Armstrong: - Addition of Video Processing Unit VPU and VAPB clocks * tag 'meson-clk-for-4.15' of git://github.com/baylibre/clk-meson: clk: meson: gxbb: Add VPU and VAPB clocks data clk: meson: gxbb: Add VPU and VAPB clockids
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Stephen Boyd authored
Merge tag 'sunxi-clk-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next Pull Allwinner clock driver updates from Maxime Ripard: - Addition of sigma/delta modulation for the audio PLLs on the newer SoCs - A83t Display clocks supports - minor fixes that didn't have any impact on current features * tag 'sunxi-clk-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: clk: sunxi-ng: sun4i: Export video PLLs clk: sunxi-ng: Add A83T display clocks clk: sunxi-ng: sun8i: a23: Use sigma-delta modulation for audio PLL clk: sunxi-ng: sun6i: Use sigma-delta modulation for audio PLL clk: sunxi-ng: sun5i: Use sigma-delta modulation for audio PLL clk: sunxi-ng: sun4i: Use sigma-delta modulation for audio PLL clk: sunxi-ng: sun8i: h3: Use sigma-delta modulation for audio PLL clk: sunxi-ng: nm: Add support for sigma-delta modulation clk: sunxi-ng: Add sigma-delta modulation support clk: sunxi-ng: nm: Check if requested rate is supported by fractional clock clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider clk: sunxi-ng: a83t: Fix invalid csi-mclk mux offset clk: sunxi-ng: sun6i: Rename HDMI DDC clock to avoid name collision clk: sunxi-ng: sun6i: Export video PLLs clk: sunxi-ng: Implement reset control status readback clk: sunxi-ng: Fix missing CLK_SET_RATE_PARENT in ccu-sun4i-a10.c clk: sunxi-ng: add CLK_SET_RATE_PARENT flag to H3 GPU clock clk: sunxi-ng: add CLK_SET_RATE_UNGATE to all H3 PLLs
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Stephen Boyd authored
Merge tag 'clk-v4.15-exynos-pm' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next Pull Samsung clk driver updates from Sylwester Nawrocki: - An addition of separate driver for the Exynos 4412 ISP CMU, needed to model and properly handle the clock controller's dependencies on the ISP power domain. - Adding __maybe_unused attributes to the exynos5433_cmu_{suspend, resume} ops to suppress compiler warnings with CONFIG_PM disabled. * tag 'clk-v4.15-exynos-pm' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk: clk: samsung: Add a separate driver for Exynos4412 ISP clocks clk: samsung: Add dt bindings for Exynos4412 ISP clock controller clk: samsung: Instantiate Exynos4412 ISP clocks only when available clk: samsung: exynos5433: mark PM functions as __maybe_unused
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- 25 Oct, 2017 2 commits
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Stephen Boyd authored
Merge tag 'clk-v4.15-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next Pull Samsung clk driver updates from Sylwester Nawrocki: Overall clk/samsung clean up and fixes. Removed remaining unused code after removal of exynos4212 SoC support; dropped internal data structure fields and related code for registering clkdev lookup entry for each possible clock object, clkdev aliases could still be defined if needed in a separate table; other minor fixes of the clock tree definitions. * tag 'clk-v4.15-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk: clk: samsung: Remove obsolete clkdev alias support clk: samsung: Add explicit MPLL, EPLL clkdev aliases in S3C2443 driver clk: samsung: Rework clkdev alias handling in S3C2443 driver clk: samsung: Rework clkdev alias handling in Exynos5440 driver clk: samsung: Drop useless alias in Exynos5420 clk driver clk: samsung: Remove clkdev alias support in Exynos5250 clk driver clk: samsung: Remove double assignment of CLK_ARM_CLK in Exynos4 driver clk: samsung: Remove clkdev alias support in Exynos4 clk driver clk: samsung: Remove support for obsolete Exynos4212 CPU clock clk: samsung: Remove support for Exynos4212 SoCs in Exynos CLKOUT driver clk: samsung: Properly propagate flags in __PLL macro clk: samsung: Fix m2m scaler clock on Exynos542x clk: samsung: Delete a memory allocation error message in clk-cpu.c
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Stephen Boyd authored
Merge tag 'clk-renesas-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull Renesas clk driver updates from Geert Uytterhoeven: - Add support for the new R-Car V3M SoC, - Small fixes and cleanups. * tag 'clk-renesas-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: rcar-gen2: Delete error message for failed memory allocation clk: renesas: mstp: Delete error messages for failed memory allocations clk: renesas: cpg-mssr: Add R8A77970 support dt-bindings: clock: Add R8A77970 CPG core clock definitions
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- 20 Oct, 2017 10 commits
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Geert Uytterhoeven authored
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing clock configuration. Register a notifier to save/restore the RCKCR register during system suspend/resume. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Tested-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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Geert Uytterhoeven authored
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing clock configuration. Register a notifier to save/restore SDHI clock registers during system suspend/resume. This is implemented using the cpg_simple_notifier abstraction, which can be reused for others clocks that just need to save/restore a single register. Signed-off-by:
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Geert Uytterhoeven authored
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing clock configuration. Register an (optional) notifier to restore the DIV6 clock state during system resume. As DIV6 clocks can be picky w.r.t. modifying multiple register fields at once, restore is not implemented by blindly restoring the register value, but by using the existing cpg_div6_clock_{en,dis}able() helpers. Note that this does not yet support DIV6 clocks with multiple parents, which do not exist on R-Car Gen3 SoCs. Signed-off-by: -
Geert Uytterhoeven authored
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, possibly losing clock configuration. Hence add a notifier chain that can be used by core clocks to save/restore clock state during system suspend/resume. The implementation of the actual clock state save/restore operations is clock-specific, and to be registered with the notifier chain in the SoC or family-specific cpg_mssr_info.cpg_clk_register() callback. Signed-off-by:
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Geert Uytterhoeven authored
During PSCI system suspend, R-Car Gen3 SoCs are powered down, and their clock register state is lost. Note that as the boot loader skips most initialization after system resume, clock register state differs from the state encountered during normal system boot, too. Hence after s2ram, some operations may fail because module clocks are disabled, while drivers expect them to be still enabled. E.g. EtherAVB fails when Wake-on-LAN has been enabled using "ethtool -s eth0 wol g": ravb e6800000.ethernet eth0: failed to switch device to config mode ravb e6800000.ethernet eth0: device will be stopped after h/w processes are done. ravb e6800000.ethernet eth0: failed to switch device to config PM: Device e6800000.ethernet failed to resume: error -110 In addition, some module clocks that were disabled by clk_disable_unused() may have been re-enabled, wasting power. To fix this, restore all bits of the SMSTPCR registers that represent clocks under control of Linux. Notes: - While this fixes EtherAVB operation after resume from s2ram, EtherAVB cannot be used as an actual wake-up source from s2ram, only from s2idle, due to PSCI limitations, - To avoid overhead on platforms not needing it, the suspend/resume code has a build time dependency on sleep and PSCI support, and a runtime dependency on PSCI. Signed-off-by: -
Geert Uytterhoeven authored
Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Acked-by:
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Fabrizio Castro authored
Signed-off-by:
Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by:
Biju Das <biju.das@bp.renesas.com> Signed-off-by:
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Geert Uytterhoeven authored
The RZ family of Renesas SoCs has several different subfamilies (RZ/A, RZ/G, RZ/N, and RZ/T). Clarify that the renesas,rz-cpg-clocks DT bindings and clk-rz driver apply to RZ/A1 only. Signed-off-by:
Rob Herring <robh@kernel.org>
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Neil Armstrong authored
The Amlogic Meson GX SoCs needs these two clocks to power up the VPU power domain. These two clocks are similar to the MALI clocks by having a glitch-free mux and two similar clocks with gate, divider and muxes. Acked-by:
Jerome Brunet <jbrunet@baylibre.com> [narmstrong: removed the CLK_IGNORE_UNUSED on muxes and dividers] Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com>
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Neil Armstrong authored
Add the clkids for the clocks feeding the Video Processing Unit. Acked-by:
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- 19 Oct, 2017 7 commits
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Bhumika Goyal authored
These structures are only passed to the functions tegra_clk_register_pll, tegra_clk_register_pll{e/u} or tegra_periph_clk_init during the init phase. These functions modify the structures only during the init phase and after that the structures are never modified. Therefore, make them __ro_after_init. Signed-off-by:Bhumika Goyal <bhumirks@gmail.com> Acked-By:
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Thierry Reding authored
This clock was previously called sor1_src and was modelled as an input to the sor1 module clock. However, it's really an output clock that can be fed either from the safe, the sor1_pad_clkout or the sor1 module clocks. sor1 itself can take input from either of the display PLLs. The same implementation for the sor1_out clock is used on Tegra186, so this nicely lines up both SoC generations to deal with this clock in a uniform way. Signed-off-by: -
Thierry Reding authored
Instead of open-coding the same pattern repeatedly, reuse the newly introduced tegra_clk_register_periph_data() helper that will unpack the initialization structure. Signed-off-by: -
Thierry Reding authored
There is a common pattern that registers individual peripheral clocks from an initialization table. Add a common implementation to remove the duplication from various call sites. Signed-off-by: -
Timo Alho authored
Check return code in BPMP response message(s). The typical error case is when a clock operation is attempted with an invalid clock identifier. Also remove error print from call to clk_get_info() as the implementation loops through the range of all possible identifiers, yet the operation is expected to error out when the clock ID is unused. Signed-off-by:
Timo Alho <talho@nvidia.com> Acked-by:
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Thierry Reding authored
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Thierry Reding authored
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- 17 Oct, 2017 2 commits
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Jonathan Liu authored
The video PLLs are used directly by the HDMI controller. Export them so that we can use them in our DT node. Signed-off-by:
Jonathan Liu <net147@gmail.com> Signed-off-by:
Chen-Yu Tsai <wens@csie.org> Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com>
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Maxime Ripard authored
Unfortunately, the A83t display clocks are not children of the de clock, since that clocks doesn't exist at all on the A83t. For now, they are orphans, so let's move them to their true, existing, parent. Fixes: 763c5bd0 ("clk: sunxi-ng: add support for DE2 CCU") Reviewed-by:
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