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2024-02-20clk: renesas: r8a779h0: Add RPC-IF clockCong Dang1-0/+1
Add the module clock used by the SPI Multi I/O Bus Controller (RPC-IF) on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/07a72378ca64b44341af960f042a6efd41d10dc3.1708354355.git.geert+renesas@glider.be
2024-02-20clk: renesas: r8a779h0: Add SYS-DMAC clocksCong Dang1-0/+2
Add the module clocks used by the Direct Memory Access Controllers for System (SYS-DMAC) on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/0285ef5d0c0c9d232e196559c9130ab46733d7f7.1707915706.git.geert+renesas@glider.be
2024-02-20clk: renesas: r8a779h0: Add SDHI clockCong Dang1-0/+1
Add the SDHI module clock, which is used by the SD Card/MMC Interface on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/3a604a6924043775c2ed0630b1c5c29be2d1a5b9.1707915642.git.geert+renesas@glider.be
2024-02-20clk: renesas: r8a779h0: Add EtherAVB clocksCong Dang1-0/+3
Add the module clocks used by the Ethernet AVB (EtherAVB-IF) blocks on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/a5b4252d9822ded3fd523bc35417306cae2ec2bd.1707661303.git.geert+renesas@glider.be
2024-02-13clk: renesas: r9a07g04[34]: Fix typo for sel_shdi variableClaudiu Beznea2-6/+6
Fix typo for sel_shdi variable. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240131102930.1841901-3-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-02-13clk: renesas: r9a07g04[34]: Use SEL_SDHI1_STS status configuration for SD1 muxClaudiu Beznea2-2/+2
The status configuration for SD1 mux clock is SEL_SDHI1_STS. Fix it. Fixes: 16b86e5c03c5 ("clk: renesas: rzg2l: Refactor SD mux driver") Reported-by: Hien Huynh <hien.huynh.px@renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240131102930.1841901-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-02-13clk: renesas: r8a779f0: Correct PFC/GPIO parent clockGeert Uytterhoeven1-1/+1
According to the R-Car S4 Series Hardware User’s Manual Rev.0.81, the parent clock of the Pin Function (PFC/GPIO) module clock is the CP clock. As this clock is not documented to exist on R-Car S4, use the CPEX clock instead. Fixes: 73421f2a48e6bd1d ("clk: renesas: r8a779f0: Add PFC clock") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/f88ec4aede0eaf0107c8bb7b28ba719ac6cd418f.1706197415.git.geert+renesas@glider.be
2024-02-13clk: renesas: r8a779g0: Correct PFC/GPIO parent clocksGeert Uytterhoeven1-5/+6
According to the R-Car V4H Series Hardware User’s Manual Rev.1.00, the parent clock of the Pin Function (PFC/GPIO) module clocks is the CP clock. Fix this by adding the missing CP clock, and correcting the PFC parents. Fixes: f2afa78d5a0c0b0b ("dt-bindings: clock: Add r8a779g0 CPG Core Clock Definitions") Fixes: 36ff366033f0dde1 ("clk: renesas: r8a779g0: Add PFC/GPIO clocks") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/5401fccd204dc90b44f0013e7f53b9eff8df8214.1706197297.git.geert+renesas@glider.be
2024-02-06clk: renesas: r8a779h0: Add I2C clocksCong Dang1-0/+4
Add the module clocks used by the I2C Bus Interfaces on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/7a76dadbce24c81dd2bee68765a0b41beca2d565.1706790236.git.geert+renesas@glider.be
2024-02-06clk: renesas: r8a779h0: Add watchdog clockCong Dang1-0/+1
Add the module clock used by the RCLK Watchdog Timer on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/f1dbf0f3f484015f2e629d78b746cf377d6f6746.1706790015.git.geert+renesas@glider.be
2024-02-06clk: renesas: r8a779h0: Add PFC/GPIO clocksCong Dang1-0/+3
Add the module clocks used by the Pin Function Controller (PFC) and General Purpose Input/Output (GPIO) blocks on the Renesas R-Car V4M (R8A779H0) SoC. Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/a7d8f4111b87decb825db5ed310de8294f90b9f9.1706266196.git.geert+renesas@glider.be
2024-01-31clk: renesas: r8a779g0: Fix PCIe clock nameGeert Uytterhoeven1-1/+1
Fix a typo in the name of the module clock for the second PCIe channel. Fixes: 5ab16198b431ca48 ("clk: renesas: r8a779g0: Add PCIe clocks") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/f582067564f357e2183d3db67b217084ecb51888.1706608032.git.geert+renesas@glider.be
2024-01-31clk: renesas: cpg-mssr: Add support for R-Car V4MCong Dang5-0/+254
Initial CPG support for the R-Car V4M (R8A779H0). Signed-off-by: Cong Dang <cong.dang.xn@renesas.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/c678ef7164e3777fa91572f72e47ef385cea64b8.1706194617.git.geert+renesas@glider.be
2024-01-31clk: renesas: rcar-gen4: Add support for FRQCRC1Geert Uytterhoeven1-2/+8
R-Car V4H and V4M have a second Frequency Control Register C. Add support for this by treating bit field offsets beyond 31 as referring to the second register. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/f64d5573a92a18505619ff0ff808d50cfc2bde55.1706194617.git.geert+renesas@glider.be
2024-01-31clk: renesas: r9a07g043: Add clock and reset entries for CRUBiju Das1-0/+31
Add CRU clock and reset entries to CPG driver. CRU_SYSCLK and CRU_VCLK clocks need to be turned ON/OFF in particular sequence for the CRU block hence add these clocks to r9a07g043_no_pm_mod_clks[] array and pass it as part of CPG data for RZ/G2UL SoCs. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240123114415.290918-1-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-31clk: renesas: r9a08g045: Add clock and reset support for watchdogClaudiu Beznea1-0/+3
RZ/G3S has a watchdog module accessible by the Cortex-A core. Add clock and reset support for it. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20240122111115.2861835-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-01-23clk: renesas: mstp: Remove obsolete clkdev registrationGeert Uytterhoeven1-13/+3
After the DT conversion of SH-Mobile and Armadillo-800-EVA display support, all devices are registered from DT, so we can remove the registration of clkdevs. Add the missing #include <linux/slab.h>, which was included implicitly through <linux/clkdev.h> before. Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/e98a6e47ebecc44fa41de6d88b4ed20c6efbd177.1705931322.git.geert+renesas@glider.be
2024-01-23clk: renesas: cpg-mssr: Ignore all clocks assigned to non-Linux systemKuninori Morimoto1-7/+104
Some boards might use Linux and another OS at the same time. In such case, currently, during booting, Linux will stop necessary module clocks which are not used on the Linux side, but are used by another OS. To avoid such situation, renesas-cpg-mssr tries to find status = "reserved" devices (A), and adds CLK_IGNORE_UNUSED flag to its <&cgp CPG_MOD xxx> clock (B). Table 2.4: Values for status property https://github.com/devicetree-org/devicetree-specification/releases/download/v0.4/devicetree-specification-v0.4.pdf "reserved" Indicates that the device is operational, but should not be used. Typically this is used for devices that are controlled by another software component, such as platform firmware. ex) scif5: serial@e6f30000 { ... (B) clocks = <&cpg CPG_MOD 202>, <&cpg CPG_CORE R8A7795_CLK_S3D1>, <&scif_clk>; ... (A) status = "reserved"; }; Cc: Aymeric Aillet <aymeric.aillet@iot.bzh> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/878r4ygfap.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-12-13clk: renesas: r9a08g045: Add clock and reset support for ETH0 and ETH1Claudiu Beznea1-0/+10
RZ/G3S has 2 Gigabit Ethernet interfaces available. Add clock and reset support for both of them. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231207070700.4156557-3-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-12-13clk: renesas: rzg2l: Check reset monitor registersClaudiu Beznea1-15/+44
The hardware manual of both RZ/G2L and RZ/G3S specifies that the reset monitor registers need to be interrogated when the reset signals are toggled (chapters "Procedures for Supplying and Stopping Reset Signals" and "Procedure for Activating Modules"). Without this, there is a chance that different modules (e.g. Ethernet) are not ready after their reset signal is toggled, leading to failures (on probe or resume from deep sleep states). The same indications are available for RZ/V2M for TYPE-B reset controls. Fixes: ef3c613ccd68 ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC") Fixes: 8090bea32484 ("clk: renesas: rzg2l: Add support for RZ/V2M reset monitor reg") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231207070700.4156557-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-12-13clk: renesas: r9a08g045: Add IA55 pclk and its resetClaudiu Beznea1-0/+3
An IA55 interrupt controller is available on the RZ/G3S SoC. Add the IA55 pclk and its reset. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231120111820.87398-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-11-27clk: renesas: rzg2l-cpg: Reuse code in rzg2l_cpg_reset()Claudiu Beznea1-23/+15
Code in rzg2l_cpg_reset() is equivalent with the combined code of rzg2l_cpg_assert() and rzg2l_cpg_deassert(). There is no need to have different versions thus re-use rzg2l_cpg_assert() and rzg2l_cpg_deassert(). Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231120070024.4079344-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-11-20clk: renesas: r8a779g0: Add PCIe clocksYoshihiro Shimoda1-0/+2
Add the PCIe module clocks, which are used by the PCIe modules on the Renesas R-Car V4H (R8A779G0) SoC. Note that the following descriptions in the hardware manual Rev.0.81 about the PCIe module clocks are incorrect: 9.2.1.7 Software Reset Register 6 (SRCR6) 9.2.1.12 Software Reset Register 11 (SRCR11) 9.2.3.7 Module Stop Control Register 6 (MSTPCR6) Please refer to Figures 104.3[ab] instead. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231114122252.2266799-1-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-11-20clk: renesas: r8a779g0: Add EtherTSN clockNiklas Söderlund1-0/+1
Add the TSN module clock, which is used by the EtherTSN module on the Renesas R-Car V4H (R8A779G0) SoC. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231031145739.657638-1-niklas.soderlund+renesas@ragnatech.se Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-12clk: renesas: r9a08g045: Add clock and reset support for SDHI1 and SDHI2Claudiu Beznea1-0/+34
Add clock and reset support for the SDHI1 and SDHI2 blocks on the RZ/G3S (R9A08G045) SoC. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231010132701.1658737-3-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-12clk: renesas: rzg2l: Use %x format specifier to print CLK_ON_R()Claudiu Beznea1-1/+1
Use the %x format specifier to print CLK_ON_R(). This makes debugging easier as the value printed will be hexadecimal like in the hardware manual. Along with it add "0x" in front of the printed value. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231010132701.1658737-2-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-10clk: renesas: Add minimal boot support for RZ/G3S SoCClaudiu Beznea5-1/+228
Add minimal clock and reset support for the RZ/G3S SoC to be able to boot Linux from SD Card/eMMC. This includes necessary core clocks for booting and GIC, SCIF, GPIO, and SD0 module clocks and resets. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231006103959.197485-5-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-10clk: renesas: rzg2l: Add divider clock for RZ/G3SClaudiu Beznea2-0/+197
Add a divider clock driver for RZ/G3S. This will be used on RZ/G3S for the SDHI, SPI, OCTA, I, I2, I3, P0, P1, P2, and P3 core clocks. The divider has some limitation for SDHI, OCTA and SPI clocks: - SDHI div cannot be 1 if parent rate is 800MHz, - OCTA, SPI div cannot be 1 if parent rate is 400MHz. To handle these limitations, a notifier is registered from platform specific clock driver, which makes sure proper actions are taken before the clock rate is changed, when needed. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231006103959.197485-4-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-10clk: renesas: rzg2l: Refactor SD mux driverClaudiu Beznea4-51/+139
Refactor SD MUX driver to be able to reuse the same code on RZ/G3S. RZ/G2{L,UL} has a limitation with regards to switching the clock source for SD MUX (MUX clock source has to be switched to 266MHz before switching b/w 533MHz and 400MHz). Rework the handling of this limitation to use a clock notifier that is registered according to platform based initialization data, so the SD MUX code can be reused on RZ/G3S. As RZ/G2{L,UL} and RZ/G3S use different bits in different registers to check if the clock switching has been done, this configuration (register offset, register bits and bitfield width) is now passed through struct cpg_core_clk::sconf (status configuration) from platform specific initialization code. Along with struct cpg_core_clk::sconf the mux table indices are also passed from platform specific initialization code. Also, mux flags are now passed to DEF_SD_MUX() as they will be used later by RZ/G3S. CPG_WEN_BIT macro has been introduced to select properly the WEN bit of various registers. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20231006103959.197485-3-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Remove CPG_SDHI_DSEL from generic headerClaudiu Beznea3-4/+14
Remove CPG_SDHI_DSEL and its bits from the generic header as RZ/G3S has different offset registers and bits for this, thus avoid mixing them. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-10-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Add struct clk_hw_dataClaudiu Beznea1-18/+34
Add clk_hw_data struct that keeps the core part of the clock data. sd_hw_data embeds a member of type struct clk_hw_data along with other members (in the next commits). This commit prepares the field for refactoring the SD MUX clock driver. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-9-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Add support for RZ/G3S PLLClaudiu Beznea2-4/+48
Add support for reading the frequency of PLL1/4/6 as available on RZ/G3S. The computation formula for the PLL frequency is as follows: Fout = (nir + nfr / 4096) * Fin / (mr * pr) Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-8-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Remove critical areaClaudiu Beznea1-4/+1
The spinlock in rzg2l_mod_clock_endisable() is intended to protect RMW-accesses to the hardware register. There is no need to protect instructions that set temporary variables which will be written afterwards to a hardware register. With this only one write to one clock register is executed thus locking/unlocking rmw_lock is removed. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-7-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Fix computation formulaClaudiu Beznea1-6/+6
According to the hardware manual for RZ/G2L (r01uh0914ej0130-rzg2l-rzg2lc.pdf), the computation formula for PLL rate is as follows: Fout = ((m + k/65536) * Fin) / (p * 2^s) and k has values in the range [-32768, 32767]. Dividing k by 65536 with integer arithmetic gives zero all the time, causing slight differences b/w what has been set vs. what is displayed. Thus, get rid of this and decompose the formula before dividing k by 65536. Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-6-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Trust value returned by hardwareClaudiu Beznea1-7/+1
The onitial value of the CPG_PL2SDHI_DSEL bits 0..1 or 4..6 is 01b. The hardware user's manual (r01uh0914ej0130-rzg2l-rzg2lc.pdf) specifies that setting 0 is prohibited. Hence rzg2l_cpg_sd_clk_mux_get_parent() should just read CPG_PL2SDHI_DSEL, trust the value, and return the proper clock parent index based on the value read. Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-5-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Lock around writes to mux registerClaudiu Beznea2-11/+14
The SD MUX output (SD0) is further divided by 4 in G2{L,UL}. The divided clock is SD0_DIV4. SD0_DIV4 is registered with CLK_SET_RATE_PARENT which means a rate request for it is propagated to the MUX and could reach rzg2l_cpg_sd_clk_mux_set_parent() concurrently with the users of SD0. Add proper locking to avoid concurrent accesses on SD MUX set rate registers. Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-4-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rzg2l: Wait for status bit of SD mux before continuingClaudiu Beznea1-7/+10
The hardware user manual for RZ/G2L (r01uh0914ej0130-rzg2l-rzg2lc.pdf, chapter 7.4.7 Procedure for Switching Clocks by the Dynamic Switching Frequency Selectors) specifies that we need to check CPG_PL2SDHI_DSEL for SD clock switching status. Fixes: eaff33646f4cb ("clk: renesas: rzg2l: Add SDHI clk mux support") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230929053915.1530607-3-claudiu.beznea@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-10-05clk: renesas: rcar-gen3: Extend SDnH divider tableDirk Behme1-1/+14
The clock dividers might be used with clock stop bit enabled or not. Current tables only support recommended values from the datasheet. This might result in warnings like below because no valid clock divider is found. Resulting in a 0 divider. There are Renesas ARM Trusted Firmware version out there which e.g. configure 0x201 (shifted logical right by 2: 0x80) and with this match the added { STPnHCK | 0, 1 }: https://github.com/renesas-rcar/arm-trusted-firmware/blob/rcar_gen3_v2.3/drivers/renesas/rcar/emmc/emmc_init.c#L108 ------------[ cut here ]------------ sd1h: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set WARNING: CPU: 1 PID: 1 at drivers/clk/clk-divider.c:141 divider_recalc_rate+0x48/0x70 Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.1.52 #1 Hardware name: Custom board based on r8a7796 (DT) pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : divider_recalc_rate+0x48/0x70 ... ------------[ cut here ]------------ Fixes: bb6d3fa98a41 ("clk: renesas: rcar-gen3: Switch to new SD clock handling") Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> [wsa: extended the table to 5 entries, added comments, reword commit message a little] Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230928080317.28224-1-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-26clk: renesas: r8a7795: Constify r8a7795_*_clksMarek Vasut1-2/+2
Make r8a7795_core_clks and r8a7795_mod_clks arrays const and align them with the other clock tables in other *cpg-mssr.c . No functional change. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230917095832.39007-1-marek.vasut+renesas@mailbox.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: r9a06g032: Name anonymous structsRalph Siemsen1-30/+33
Clarify the content of the r9a06g032_clkdesc structure by naming the remaining anonymous structures defined inside. Renaming each field and updating the doc then becomes necessary in order to avoid name duplications and kdoc warnings. Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230913203805.465780-2-ralph.siemsen@linaro.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: r9a06g032: Fix kerneldoc warningRalph Siemsen1-0/+1
Mention the 'dual' structure in the kdoc. This fixes the following W=1 warning during build: > drivers/clk/renesas/r9a06g032-clocks.c:119: warning: Function parameter or member 'dual' not described in 'r9a06g032_clkdesc' Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202309101314.kTRoxND5-lkp@intel.com/ Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230913203805.465780-1-ralph.siemsen@linaro.org Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: rzg2l: Use u32 for flag and mux_flagsClaudiu Beznea1-2/+2
flag and mux_flags are intended to keep bit masks. Use u32 type for it. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-15-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: rzg2l: Use FIELD_GET() for PLL register fieldsClaudiu Beznea1-5/+5
Use FIELD_GET() for PLL register fields. This is its purpose. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-14-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: rzg2l: Simplify the logic in rzg2l_mod_clock_endisable()Claudiu Beznea1-3/+2
The bitmask << 16 is anyway set on both branches of if thus move it before the if and set the lower bits of registers only in case clock is enabled. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-12-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-18clk: renesas: rzg2l: Use core->name for clock nameClaudiu Beznea1-1/+1
core->name already contains the clock name thus, there is no need to check the GET_SHIFT(core->conf) to decide on it. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230912045157.177966-11-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-09-11clk: renesas: r9a06g032: Use for_each_compatible_node()Yang Yingliang1-3/+2
Use for_each_compatible_node() instead of open-coding it. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20230802091920.3270703-1-yangyingliang@huawei.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-08-30Merge branches 'clk-bindings', 'clk-starfive', 'clk-rm', 'clk-renesas' and 'clk-cleanup' into clk-nextStephen Boyd17-19/+73
- Remove OXNAS clk driver * clk-bindings: dt-bindings: clock: versal: Convert the xlnx,zynqmp-clk.txt to yaml dt-bindings: clock: xlnx,versal-clk: drop select:false dt-bindings: clock: versal: Add versal-net compatible string dt-bindings: clock: ast2600: Add I3C and MAC reset definitions dt-bindings: arm: hisilicon,cpuctrl: Merge "hisilicon,hix5hd2-clock" into parent binding * clk-starfive: reset: starfive: jh7110: Add StarFive STG/ISP/VOUT resets support clk: starfive: Simplify .determine_rate() clk: starfive: Add StarFive JH7110 Video-Output clock driver clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver clk: starfive: Add StarFive JH7110 System-Top-Group clock driver clk: starfive: jh7110-sys: Add PLL clocks source from DTS clk: starfive: Add StarFive JH7110 PLL clock driver dt-bindings: clock: Add StarFive JH7110 Video-Output clock and reset generator dt-bindings: clock: Add StarFive JH7110 Image-Signal-Process clock and reset generator dt-bindings: clock: Add StarFive JH7110 System-Top-Group clock and reset generator dt-bindings: clock: jh7110-syscrg: Add PLL clock inputs dt-bindings: soc: starfive: Add StarFive syscon module dt-bindings: clock: Add StarFive JH7110 PLL clock generator * clk-rm: dt-bindings: clk: oxnas: remove obsolete bindings clk: oxnas: remove obsolete clock driver * clk-renesas: clk: renesas: rcar-gen3: Add ADG clocks clk: renesas: r8a77965: Add 3DGE and ZG support clk: renesas: r8a7796: Add 3DGE and ZG support clk: renesas: r8a7795: Add 3DGE and ZG support clk: renesas: emev2: Remove obsolete clkdev registration clk: renesas: r9a07g043: Add MTU3a clock and reset entry clk: renesas: rzg2l: Simplify .determine_rate() clk: renesas: r9a09g011: Add CSI related clocks clk: renesas: r8a774b1: Add 3DGE and ZG support clk: renesas: r8a774e1: Add 3DGE and ZG support clk: renesas: r8a774a1: Add 3DGE and ZG support clk: renesas: rcar-gen3: Add support for ZG clock * clk-cleanup: clk: mvebu: Convert to devm_platform_ioremap_resource() clk: nuvoton: Convert to devm_platform_ioremap_resource() clk: socfpga: agilex: Convert to devm_platform_ioremap_resource() clk: ti: Use devm_platform_get_and_ioremap_resource() clk: mediatek: Convert to devm_platform_ioremap_resource() clk: hsdk-pll: Convert to devm_platform_ioremap_resource() clk: gemini: Convert to devm_platform_ioremap_resource() clk: fsl-sai: Convert to devm_platform_ioremap_resource() clk: bm1880: Convert to devm_platform_ioremap_resource() clk: axm5516: Convert to devm_platform_ioremap_resource() clk: actions: Convert to devm_platform_ioremap_resource() clk: cdce925: Remove redundant of_match_ptr() drivers: clk: keystone: Fix parameter judgment in _of_pll_clk_init() clk: Explicitly include correct DT includes
2023-08-15clk: renesas: rcar-gen3: Add ADG clocksKuninori Morimoto9-1/+9
R-Car Sound needs to enable "ADG" on RMSTPCR9/SMSTPCR9 bit 22 to use clk_i which came from the internal S0D4 or ZA2 clock. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Vincenzo De Michele <vincenzo.michele@davinci.de> # R-Car M3-N Tested-by: Patrick Keil <patrick.keil@conti-engineering.com> # R-Car M3-N Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/87pm47prox.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87o7jrpros.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87mszbpron.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87leevproh.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87jzufprod.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87il9zpro8.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87h6pjpro4.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87fs53prny.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87edknprnt.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2023-07-27clk: renesas: r8a77965: Add 3DGE and ZG supportGeert Uytterhoeven1-0/+2
The 3DGE and ZG clocks are necessary to support the 3D graphics. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1767d01cfffd7490861f2cf6ad6c0df100916907.1689599217.git.geert+renesas@glider.be
2023-07-27clk: renesas: r8a7796: Add 3DGE and ZG supportGeert Uytterhoeven1-0/+2
The 3DGE and ZG clocks are necessary to support the 3D graphics. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/291462bea7ffc13f8218c1901dc384b576bfc2d6.1689599217.git.geert+renesas@glider.be
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