[PATCH v6 00/27] Add support for MT8196 clock controllers
From: Laura Nao <hidden>
Date: 2025-09-15 15:21:25
Also in:
linux-arm-kernel, linux-clk, linux-devicetree, linux-mediatek, lkml
This patch series introduces support for the clock controllers on the MediaTek MT8196 platform, following up on an earlier submission[1]. MT8196 uses a hardware voting mechanism to control some of the clock muxes and gates, along with a fence register responsible for tracking PLL and mux gate readiness. The series introduces support for these voting and fence mechanisms, and includes drivers for all clock controllers on the platform. [1] https://lore.kernel.org/all/20250307032942.10447-1-guangjie.song@mediatek.com/ (local) Changes in v6: - Removed unnecessary braces in clk-mux and clk-gate - Excluded clk26m from the parent lists of vlp_audio_h, vlp_aud_engen1, vlp_aud_engen2, and vlp_aud_intbus - Reordered entries in of_match_clk_mt8196_mdpsys - Converted mfg_eb clock into a mux with a gate Link to v5: https://lore.kernel.org/all/20250829091913.131528-1-laura.nao@collabora.com/ (local) Laura Nao (27): clk: mediatek: clk-pll: Add set/clr regs for shared PLL enable control clk: mediatek: clk-pll: Add ops for PLLs using set/clr regs and FENC clk: mediatek: clk-mux: Add ops for mux gates with set/clr/upd and FENC clk: mediatek: clk-mtk: Introduce mtk_clk_get_hwv_regmap() clk: mediatek: clk-mux: Add ops for mux gates with HW voter and FENC clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use mtk_gate struct clk: mediatek: clk-gate: Add ops for gates with HW voter clk: mediatek: clk-mtk: Add MUX_DIV_GATE macro dt-bindings: clock: mediatek: Describe MT8196 clock controllers clk: mediatek: Add MT8196 apmixedsys clock support clk: mediatek: Add MT8196 topckgen clock support clk: mediatek: Add MT8196 topckgen2 clock support clk: mediatek: Add MT8196 vlpckgen clock support clk: mediatek: Add MT8196 peripheral clock support clk: mediatek: Add MT8196 ufssys clock support clk: mediatek: Add MT8196 pextpsys clock support clk: mediatek: Add MT8196 I2C clock support clk: mediatek: Add MT8196 mcu clock support clk: mediatek: Add MT8196 mdpsys clock support clk: mediatek: Add MT8196 mfg clock support clk: mediatek: Add MT8196 disp0 clock support clk: mediatek: Add MT8196 disp1 clock support clk: mediatek: Add MT8196 disp-ao clock support clk: mediatek: Add MT8196 ovl0 clock support clk: mediatek: Add MT8196 ovl1 clock support clk: mediatek: Add MT8196 vdecsys clock support clk: mediatek: Add MT8196 vencsys clock support .../bindings/clock/mediatek,mt8196-clock.yaml | 112 ++ .../clock/mediatek,mt8196-sys-clock.yaml | 107 ++ drivers/clk/mediatek/Kconfig | 71 ++ drivers/clk/mediatek/Makefile | 13 + drivers/clk/mediatek/clk-gate.c | 117 ++- drivers/clk/mediatek/clk-gate.h | 3 + drivers/clk/mediatek/clk-mt8196-apmixedsys.c | 204 ++++ drivers/clk/mediatek/clk-mt8196-disp0.c | 170 +++ drivers/clk/mediatek/clk-mt8196-disp1.c | 170 +++ .../clk/mediatek/clk-mt8196-imp_iic_wrap.c | 118 +++ drivers/clk/mediatek/clk-mt8196-mcu.c | 167 +++ drivers/clk/mediatek/clk-mt8196-mdpsys.c | 186 ++++ drivers/clk/mediatek/clk-mt8196-mfg.c | 150 +++ drivers/clk/mediatek/clk-mt8196-ovl0.c | 154 +++ drivers/clk/mediatek/clk-mt8196-ovl1.c | 154 +++ drivers/clk/mediatek/clk-mt8196-peri_ao.c | 142 +++ drivers/clk/mediatek/clk-mt8196-pextp.c | 131 +++ drivers/clk/mediatek/clk-mt8196-topckgen.c | 985 ++++++++++++++++++ drivers/clk/mediatek/clk-mt8196-topckgen2.c | 568 ++++++++++ drivers/clk/mediatek/clk-mt8196-ufs_ao.c | 108 ++ drivers/clk/mediatek/clk-mt8196-vdec.c | 253 +++++ drivers/clk/mediatek/clk-mt8196-vdisp_ao.c | 80 ++ drivers/clk/mediatek/clk-mt8196-venc.c | 236 +++++ drivers/clk/mediatek/clk-mt8196-vlpckgen.c | 725 +++++++++++++ drivers/clk/mediatek/clk-mtk.c | 16 + drivers/clk/mediatek/clk-mtk.h | 22 + drivers/clk/mediatek/clk-mux.c | 120 ++- drivers/clk/mediatek/clk-mux.h | 87 ++ drivers/clk/mediatek/clk-pll.c | 45 +- drivers/clk/mediatek/clk-pll.h | 8 + .../dt-bindings/clock/mediatek,mt8196-clock.h | 803 ++++++++++++++ .../reset/mediatek,mt8196-resets.h | 26 + 32 files changed, 6216 insertions(+), 35 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt8196-clock.yaml create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt8196-sys-clock.yaml create mode 100644 drivers/clk/mediatek/clk-mt8196-apmixedsys.c create mode 100644 drivers/clk/mediatek/clk-mt8196-disp0.c create mode 100644 drivers/clk/mediatek/clk-mt8196-disp1.c create mode 100644 drivers/clk/mediatek/clk-mt8196-imp_iic_wrap.c create mode 100644 drivers/clk/mediatek/clk-mt8196-mcu.c create mode 100644 drivers/clk/mediatek/clk-mt8196-mdpsys.c create mode 100644 drivers/clk/mediatek/clk-mt8196-mfg.c create mode 100644 drivers/clk/mediatek/clk-mt8196-ovl0.c create mode 100644 drivers/clk/mediatek/clk-mt8196-ovl1.c create mode 100644 drivers/clk/mediatek/clk-mt8196-peri_ao.c create mode 100644 drivers/clk/mediatek/clk-mt8196-pextp.c create mode 100644 drivers/clk/mediatek/clk-mt8196-topckgen.c create mode 100644 drivers/clk/mediatek/clk-mt8196-topckgen2.c create mode 100644 drivers/clk/mediatek/clk-mt8196-ufs_ao.c create mode 100644 drivers/clk/mediatek/clk-mt8196-vdec.c create mode 100644 drivers/clk/mediatek/clk-mt8196-vdisp_ao.c create mode 100644 drivers/clk/mediatek/clk-mt8196-venc.c create mode 100644 drivers/clk/mediatek/clk-mt8196-vlpckgen.c create mode 100644 include/dt-bindings/clock/mediatek,mt8196-clock.h create mode 100644 include/dt-bindings/reset/mediatek,mt8196-resets.h -- 2.39.5