- 02 Nov, 2021 2 commits
-
-
Stephen Boyd authored
- Clock power management for new SAMA7G5 SoC - Updates to the master clock driver and sam9x60-pll to be able to use cpufreq-dt driver and avoid overclocking of CPU and MCK0 domains while changing the frequency via DVFS - Power management refinement with the use of save_context()/restore_context() on each clock driver to specify their use in case of Backup mode only * clk-leak: clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths * clk-rockchip: clk: rockchip: use module_platform_driver_probe clk: rockchip: rk3399: expose PCLK_COREDBG_{B,L} clk: rockchip: rk3399: make CPU clocks critical * clk-renesas: clk: renesas: r8a779[56]x: Add MLP clocks clk: renesas: r9a07g044: Add SDHI clock and reset entries clk: renesas: rzg2l: Add SDHI clk mux support clk: renesas: r8a779a0: Add RPC support clk: renesas: cpg-lib: Move RPC clock registration to the library clk: renesas: r9a07g044: Add clock and reset entries for SPI Multi I/O Bus Controller clk: renesas: r8a779a0: Add Z0 and Z1 clock support clk: renesas: r9a07g044: Add GbEthernet clock/reset clk: renesas: rzg2l: Add support to handle coupled clocks clk: renesas: r9a07g044: Add ethernet clock sources clk: renesas: rzg2l: Add support to handle MUX clocks clk: renesas: r8a779a0: Add TPU clock clk: renesas: rzg2l: Fix clk status function clk: renesas: r9a07g044: Mark IA55_CLK and DMAC_ACLK critical * clk-at91: clk: at91: sama7g5: set low limit for mck0 at 32KHz clk: at91: sama7g5: remove prescaler part of master clock clk: at91: clk-master: add notifier for divider clk: at91: clk-sam9x60-pll: add notifier for div part of PLL clk: at91: clk-master: fix prescaler logic clk: at91: clk-master: mask mckr against layout->mask clk: at91: clk-master: check if div or pres is zero clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL clk: at91: pmc: add sama7g5 to the list of available pmcs clk: at91: clk-master: improve readability by using local variables clk: at91: clk-master: add register definition for sama7g5's master clock clk: at91: sama7g5: add securam's peripheral clock clk: at91: pmc: execute suspend/resume only for backup mode clk: at91: re-factor clocks suspend/resume clk: at91: check pmc node status before registering syscore ops -
Stephen Boyd authored
- Use ARRAY_SIZE in qcom clk drivers - Remove some impractical fallback parent names in qcom clk drivers - GCC and RPMcc support for Qualcomm QCM2290 SoCs - GCC support for Qualcomm MSM8994/MSM8992 SoCs - LPASSCC and CAMCC support for Qualcomm SC7280 SoCs - Support for Mediatek MT8195 SoCs - Make Mediatek clk drivers tristate * clk-qcom: (44 commits) clk: qcom: gdsc: enable optional power domain support clk: qcom: videocc-sm8250: use runtime PM for the clock controller clk: qcom: dispcc-sm8250: use runtime PM for the clock controller dt-bindings: clock: qcom,videocc: add mmcx power domain dt-bindings: clock: qcom,dispcc-sm8x50: add mmcx power domain clk: qcom: gcc-sc7280: Drop unused array clk: qcom: camcc: Add camera clock controller driver for SC7280 dt-bindings: clock: Add YAML schemas for CAMCC clocks on SC7280 clk: qcom: Add lpass clock controller driver for SC7280 dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7280 clk: qcom: Kconfig: Sort the symbol for SC_LPASS_CORECC_7180 clk: qcom: mmcc-sdm660: Add hw_ctrl flag to venus_core0_gdsc clk: qcom: mmcc-sdm660: Add necessary CXCs to venus_gdsc clk: qcom: gcc-msm8994: Use ARRAY_SIZE() for num_parents clk: qcom: gcc-msm8994: Add proper msm8992 support clk: qcom: gcc-msm8994: Add modem reset clk: qcom: gcc-msm8994: Remove the inexistent GDSC_PCIE clk: qcom: gcc-msm8994: Add missing clocks clk: qcom: gcc-msm8994: Add missing NoC clocks clk: qcom: gcc-msm8994: Fix up SPI QUP clocks ... * clk-mtk: (28 commits) clk: mediatek: Export clk_ops structures to modules clk: mediatek: support COMMON_CLK_MT6779 module build clk: mediatek: support COMMON_CLK_MEDIATEK module build clk: composite: export clk_register_composite clk: mediatek: Add MT8195 apusys clock support clk: mediatek: Add MT8195 imp i2c wrapper clock support clk: mediatek: Add MT8195 wpesys clock support clk: mediatek: Add MT8195 vppsys1 clock support clk: mediatek: Add MT8195 vppsys0 clock support clk: mediatek: Add MT8195 vencsys clock support clk: mediatek: Add MT8195 vdosys1 clock support clk: mediatek: Add MT8195 vdosys0 clock support clk: mediatek: Add MT8195 vdecsys clock support clk: mediatek: Add MT8195 scp adsp clock support clk: mediatek: Add MT8195 mfgcfg clock support clk: mediatek: Add MT8195 ipesys clock support clk: mediatek: Add MT8195 imgsys clock support clk: mediatek: Add MT8195 ccusys clock support clk: mediatek: Add MT8195 camsys clock support clk: mediatek: Add MT8195 infrastructure clock support ... * clk-versatile: clk: versatile: hide clock drivers from non-ARM users clk: versatile: Rename ICST to CLK_ICST clk: versatile: clk-icst: Support 'reg' in addition to 'vco-offset' for register address dt-bindings: clock: arm,syscon-icst: Use 'reg' instead of 'vco-offset' for VCO register address * clk-doc: dt-bindings: clk: fixed-mmio-clock: Convert to YAML
-
- 27 Oct, 2021 14 commits
-
-
Claudiu Beznea authored
MCK0 could go as low as 32KHz. Set this limit. Signed-off-by:
Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20211011112719.3951784-15-claudiu.beznea@microchip.comAcked-by:
Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by:
Stephen Boyd <sboyd@kernel.org>
-
Claudiu Beznea authored
On SAMA7G5 the prescaler part of master clock has been implemented as a changeable one. Everytime the prescaler is changed the PMC_SR.MCKRDY bit must be polled. Value 1 for PMC_SR.MCKRDY means the prescaler update is done. Driver polls for this bit until it becomes 1. On SAMA7G5 it has been discovered that in some conditions the PMC_SR.MCKRDY is not rising but the rate it provides it's stable. The workaround is to add a timeout when polling for PMC_SR.MCKRDY. At the moment, for SAMA7G5, the prescaler will be removed from Linux clock tree as all the frequencies for CPU could be obtained from PLL and also there will be less overhead when changing frequency via DVFS. Signed-off-by:
-
Claudiu Beznea authored
SAMA7G5 supports DVFS by changing cpuck. On SAMA7G5 mck0 shares the same parent with cpuck as seen in the following clock tree: +----------> cpuck | FRAC PLL ---> DIV PLL -+-> DIV ---> mck0 mck0 could go b/w 32KHz and 200MHz on SAMA7G5. To avoid mck0 overclocking while changing FRAC PLL or DIV PLL the commit implements a notifier for mck0 which applies a safe divider to register (maximum value of the divider which is 5) on PRE_RATE_CHANGE events (such that changes on PLL to not overclock mck0) and sets the maximum allowed rate on POST_RATE_CHANGE events. Signed-off-by: -
Claudiu Beznea authored
SAM9X60's PLL which is also part of SAMA7G5 is composed of 2 parts: one fractional part and one divider. On SAMA7G5 the CPU PLL could be changed at run-time to implement DVFS. The hardware clock tree on SAMA7G5 for CPU PLL is as follows: +---- div1 ----------------> cpuck | FRAC PLL ---> DIV PLL -+-> prescaler ---> div0 ---> mck0 The div1 block is not implemented in Linux; on prescaler block it has been discovered a bug on some scenarios and will be removed from Linux in next commits. Thus, the final clock tree that will be used in Linux will be as follows: +-----------> cpuck | FRAC PLL ---> DIV PLL -+-> div0 ---> mck0 It has been proposed in [1] to not introduce a new CPUFreq driver but to overload the proper clock drivers with proper operation such that cpufreq-dt to be used. To accomplish this DIV PLL and div0 implement clock notifiers which applies safe dividers before FRAC PLL is changed. The current commit treats only the DIV PLL by adding a notifier that sets a safe divider on PRE_RATE_CHANGE events. The safe divider is provided by initialization clock code (sama7g5.c). The div0 is treated in next commits (to keep the changes as clean as possible). [1] https://lore.kernel.org/lkml/20210105104426.4tmgc2l3vyicwedd@vireshk-i7/Signed-off-by: -
Claudiu Beznea authored
When prescaler value read from register is MASTER_PRES_MAX it means that the input clock will be divided by 3. Fix the code to reflect this. Fixes: 7a110b91 ("clk: at91: clk-master: re-factor master clock") Signed-off-by:
-
Claudiu Beznea authored
Mask values read/written from/to MCKR against layout->mask as this mask may be different b/w PMC versions. Signed-off-by:
-
Claudiu Beznea authored
Check if div or pres is zero before using it as argument for ffs(). In case div is zero ffs() will return 0 and thus substracting from zero will lead to invalid values to be setup in registers. Fixes: 7a110b91 ("clk: at91: clk-master: re-factor master clock") Fixes: 75c88143 ("clk: at91: clk-master: add master clock support for SAMA7G5") Signed-off-by:
-
Claudiu Beznea authored
Use DIV_ROUND_CLOSEST_ULL() to avoid any inconsistency b/w the rate computed in sam9x60_frac_pll_recalc_rate() and the one computed in sam9x60_frac_pll_compute_mul_frac(). Fixes: 43b1bb4a ("clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs") Signed-off-by:
-
Claudiu Beznea authored
Add SAMA7G5 to the list of available PMCs such that the suspend/resume code for clocks to be used on backup mode. Signed-off-by:
-
Claudiu Beznea authored
Improve readability in clk_sama7g5_master_set() by using local variables. Suggested-by:
-
Claudiu Beznea authored
SAMA7G5 has 4 master clocks (MCK1..4) which are controlled though the register at offset 0x30 (relative to PMC). In the last/first phase of suspend/resume procedure (which is architecture specific) the parent of master clocks are changed (via assembly code) for more power saving (see file arch/arm/mach-at91/pm_suspend.S, macros at91_mckx_ps_enable and at91_mckx_ps_restore). Thus the macros corresponding to register at offset 0x30 need to be shared b/w clk-master.c and pm_suspend.S. commit ec03f18c ("clk: at91: add register definition for sama7g5's master clock") introduced the proper macros but didn't adapted the clk-master.c as well. Thus, this commit adapt the clk-master.c to use the macros introduced in commit ec03f18c ("clk: at91: add register definition for sama7g5's master clock"). Signed-off-by:
-
Claudiu Beznea authored
Add SECURAM's peripheral clock. Signed-off-by:
-
Claudiu Beznea authored
Before going to backup mode architecture specific PM code sets the first word in securam (file arch/arm/mach-at91/pm.c, function at91_pm_begin()). Thus take this into account when suspending/resuming clocks. This will avoid executing unnecessary instructions when suspending to non backup modes. Signed-off-by:
-
Claudiu Beznea authored
SAMA5D2 and SAMA7G5 have a special power saving mode (backup mode) where most of the SoC's components are powered off (including PMC). Resuming from this mode is done with the help of bootloader. Peripherals are not aware of the power saving mode thus most of them are disabling clocks in proper suspend API and re-enable them in resume API without taking into account the previously setup rate. Moreover some of the peripherals are acting as wakeup sources and are not disabling the clocks in this scenario, when suspending. Since backup mode cuts the power for peripherals, in resume part these clocks needs to be re-configured. The initial PMC suspend/resume code was designed only for SAMA5D2's PMC (as it was the only one supporting backup mode). SAMA7G supports also backup mode and its PMC is different (few new functionalities, different registers offsets, different offsets in registers for each functionalities). To address both SAMA5D2 and SAMA7G5 PMC add .save_context()/.resume_context() support to each clocks driver and call this from PMC driver. Signed-off-by:
-
- 15 Oct, 2021 9 commits
-
-
Stephen Boyd authored
Merge tag 'renesas-clk-for-v5.16-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas Pull Renesas clk driver updates from Geert Uytterhoeven: - Add SPI Multi I/O Bus and SDHI clocks and resets on RZ/G2L - Add SPI Multi I/O Bus (RPC) clocks on R-Car V3U - Add MediaLB clocks on R-Car H3, M3-W/W+, and M3-N * tag 'renesas-clk-for-v5.16-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: r8a779[56]x: Add MLP clocks clk: renesas: r9a07g044: Add SDHI clock and reset entries clk: renesas: rzg2l: Add SDHI clk mux support clk: renesas: r8a779a0: Add RPC support clk: renesas: cpg-lib: Move RPC clock registration to the library clk: renesas: r9a07g044: Add clock and reset entries for SPI Multi I/O Bus Controller
-
Andrey Gusakov authored
Add clocks for MLP modules on Renesas R-Car H3 and M3-W/N SoCs. Signed-off-by:
Andrey Gusakov <andrey.gusakov@cogentembedded.com> Signed-off-by:
Nikita Yushchenko <nikita.yoush@cogentembedded.com> Link: https://lore.kernel.org/r/20210929213431.5275-1-nikita.yoush@cogentembedded.comSigned-off-by:
Geert Uytterhoeven <geert+renesas@glider.be>
-
Jean Delvare authored
Commit 419b3ab6 ("clk: versatile: remove dependency on ARCH_*") made the whole menu of ARM reference clock drivers visible on all architectures. I can't see how this is an improvement for non-ARM users. Unless build-testing, there is no point on presenting ARM-only clock drivers on other architectures. Signed-off-by:
Jean Delvare <jdelvare@suse.de> Cc: Peter Collingbourne <pcc@google.com> Cc: Lee Jones <lee.jones@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20210901180953.5bd2a994@endymionReviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
-
Jean Delvare authored
For consistency, prefix the ICST config option with CLK as all other clock source drivers have. Signed-off-by:
-
Dmitry Baryshkov authored
On sm8250 dispcc and videocc registers are powered up by the MMCX power domain. Currently we use a regulator to enable this domain on demand, however this has some consequences, as genpd code is not reentrant. Make gdsc code also use pm_runtime calls to ensure that registers are accessible during the gdsc_enable/gdsc_disable operations. Signed-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20210829154757.784699-6-dmitry.baryshkov@linaro.orgSigned-off-by:
-
Dmitry Baryshkov authored
On sm8250 dispcc and videocc registers are powered up by the MMCX power domain. Use runtime PM calls to make sure that required power domain is powered on while we access clock controller's registers. Signed-off-by:
-
Dmitry Baryshkov authored
On sm8250 dispcc and videocc registers are powered up by the MMCX power domain. Use runtime PM calls to make sure that required power domain is powered on while we access clock controller's registers. Signed-off-by:
-
Dmitry Baryshkov authored
On sm8250 videocc requires MMCX power domain to be powered up before clock controller's registers become available. For now sm8250 was using external regulator driven by the power domain to describe this relationship. Switch into specifying power-domain and required opp-state directly. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210829154757.784699-3-dmitry.baryshkov@linaro.orgSigned-off-by:
-
Dmitry Baryshkov authored
On sm8250 dispcc requires MMCX power domain to be powered up before clock controller's registers become available. For now sm8250 was using external regulator driven by the power domain to describe this relationship. Switch into specifying power-domain and required opp-state directly. Signed-off-by:
-
- 14 Oct, 2021 1 commit
-
-
Stephen Boyd authored
After commit 3165d1e3 ("clk: qcom: gcc: Remove CPUSS clocks control for SC7280") this array is unused. Remove it. Reported-by:
kernel test robot <lkp@intel.com> Cc: Taniya Das <tdas@codeaurora.org> Fixes: 3165d1e3 ("clk: qcom: gcc: Remove CPUSS clocks control for SC7280") Link: https://lore.kernel.org/r/20211014191259.1689641-1-sboyd@kernel.orgSigned-off-by:
-
- 13 Oct, 2021 14 commits
-
-
Taniya Das authored
Add support for the camera clock controller found on SC7280 based devices. This would allow camera drivers to probe and control their clocks. Signed-off-by:
Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1633567425-11953-2-git-send-email-tdas@codeaurora.org [sboyd@kernel.org: Make some VCOs unsigned long] Signed-off-by:
-
Taniya Das authored
The camera clock controller clock provider have a bunch of generic properties that are needed in a device tree. Add the CAMCC clock IDs for camera client to request for the clocks. Signed-off-by:
-
Taniya Das authored
Add support for the lpass clock controller found on SC7280 based devices. This would allow lpass peripheral loader drivers to control the clocks to bring the subsystem out of reset. Signed-off-by:
-
Taniya Das authored
The LPASS(Low Power Audio Subsystem) clock provider have a bunch of generic properties that are needed in a device tree. Add the LPASS clock IDs for LPASS PIL client to request for the clocks. Signed-off-by:
-
Taniya Das authored
Fix the order of the Kconfig symbol for SC_LPASS_CORECC_7180. Signed-off-by:
-
AngeloGioacchino Del Regno authored
As shown downstream[1], this GDSC supports HW trigger mode and we're supposed to enable it in order to ensure correct operation. [1]: https://github.com/sonyxperiadev/kernel/blob/aosp/LA.UM.6.4.r1/arch/arm/boot/dts/qcom/sdm630.dtsi#L2181Signed-off-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20211008102041.268253-2-angelogioacchino.delregno@collabora.comSigned-off-by:
-
AngeloGioacchino Del Regno authored
As also shown on downstream dts[1], for a correct operation of the Venus block, we have to retain MEM/PERIPH when halting the video_core, video_axi and video_subcore0 branches: add these CXCs to the main Venus GDSC. [1]: https://github.com/sonyxperiadev/kernel/blob/aosp/LA.UM.6.4.r1/arch/arm/boot/dts/qcom/sdm660-vidc.dtsi#L80Signed-off-by:
-
Konrad Dybcio authored
Don't rely on the programmer to enter the name of array elements, since the computer can compute it with much less chance of making a mistake. Signed-off-by:
Konrad Dybcio <konrad.dybcio@somainline.org> Link: https://lore.kernel.org/r/20210923162645.23257-9-konrad.dybcio@somainline.orgSigned-off-by:
-
Konrad Dybcio authored
MSM8992 is a cut-down version of MSM8994, featuring largely the same hardware. Signed-off-by:
-
Konrad Dybcio authored
This will be required to support the modem. Signed-off-by:
-
Konrad Dybcio authored
This GDSC is not present on msm8994. Signed-off-by:
-
Konrad Dybcio authored
This should be the last "add missing clocks" commit, as to my knowledge there are no more clocks registered within gcc. Signed-off-by:
-
Konrad Dybcio authored
Add necessary NoC clocks to provide frequency sources for relevant branch clocks. Signed-off-by:
-
Konrad Dybcio authored
Fix up SPI QUP freq tables to account for the fact that not every QUP can run at the same set of frequencies. Signed-off-by:
-
