u-boot.git/drivers/clk/mediatek, branch next

clk: mediatek: mt8189: add missing qualifiers

2026-08-13T16:35:20Z

Add a missing const and a missing static qualifier to a couple of lookup tables. Reviewed-by: Julien Stephan Link: https://patch.msgid.link/20260731-mtk-clk-mt8189-fix-missing-qualifiers-v1-1-92f3f0e44817@baylibre.com Signed-off-by: David Lechner

clk: mediatek: mt8188: fix top0 gate polarity

2026-08-05T20:05:37Z

Gates in top0_cg_regs are active-high. The GATE_TOP0/GATE_TOP0E macros set CLK_GATE_NO_SETCLR flags, which treat them as active-low. Enabling the clock is currently disabling them. Switch both macros to CLK_GATE_NO_SETCLR_INV to use the correct active-high semantics. Signed-off-by: Julien Stephan Fixes: 11f3cc46322a ("clk: mediatek: add MT8188 clock driver") Link: https://patch.msgid.link/20260728-mt8188-clk-fix-top0-gate-polarity-v1-1-56bc92ba6055@baylibre.com Signed-off-by: David Lechner

clk: mediatek: drop probe-after-bind provider setup

2026-07-29T16:12:20Z

Parent lookup now probes the exact missing provider on demand, making the eager probing of every parent provider after bind redundant. The common bind callback also occupies a driver callback that a provider may need for unrelated setup. Remove the common bind callback and its use from all MediaTek parent providers. Providers are now registered only when first needed or when normal driver-model probing reaches them. Signed-off-by: Carlo Caione Link: https://patch.msgid.link/20260724-ccaione-upstream-fix-clk-probe-v2-2-ebcef2e94e9d@baylibre.com Signed-off-by: David Lechner

clk: mediatek: probe parent providers on demand

2026-07-29T16:06:00Z

MediaTek clock trees can reference parents provided by a different clock controller. The provider registry is populated when each controller probes, so an early consumer can request a parent before its provider has been registered. When lookup misses, find the MediaTek clock device whose operations and clock-tree type match the requested provider, then probe that device. This removes the probe-order dependency without probing unrelated clock controllers or treating a driver's bind callback as a type marker. Co-developed-by: David Lechner Signed-off-by: Carlo Caione Link: https://patch.msgid.link/20260724-ccaione-upstream-fix-clk-probe-v2-1-ebcef2e94e9d@baylibre.com Signed-off-by: David Lechner

clk: mediatek: mt8188: add display related clock driver

2026-07-29T15:47:02Z

Add display related clock drivers, needed for HDMI support. Signed-off-by: Chris-QJ Chen Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-mt8188-add-clk-add-display-related-clocks-v2-1-0aaf7accaeb0@baylibre.com Signed-off-by: David Lechner

clk: mediatek: get the clock tree from the driver data in mtk_common_clk_init

2026-07-29T15:25:19Z

Every clock driver now stores its struct mtk_clk_tree in the compatible data. Rename mtk_common_clk_init() to mtk_clk_probe() and make if fetch the tree from dev_get_driver_data() instead of taking it as an argument, so it matches the driver .probe prototype and can be used directly as the probe callback. Drop all the per-SoC probe wrappers that only forwarded the driver data to mtk_clk_probe(), and point the corresponding drivers at mtk_clk_probe() directly. The few controllers that still need a dedicated probe for SoC specific register tweaks (some apmixedsys and topckgen instances) keep it, but now call the single-argument mtk_clk_probe(). This touches every MediaTek clock driver at once to keep the tree building across the whole series. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-32-23e907516010@baylibre.com Signed-off-by: David Lechner (renamed mtk_common_clk_init() to mtk_clk_probe())

clk: mediatek: remove the dedicated clock gate code path

2026-07-29T15:25:19Z

Now that every MediaTek SoC describes its clock gates through struct mtk_clk_tree and handles them with the generic topckgen ops, nothing uses the dedicated clock gate code path anymore. Remove struct mtk_cg_priv, the mtk_clk_gate_ops (of_xlate/enable/disable/ get_rate/dump) and mtk_common_clk_gate_init() from clk-mtk. Clock gate controllers are now just regular mtk_clk_tree providers. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-31-23e907516010@baylibre.com Signed-off-by: David Lechner

clk: mediatek: mt8189: use driver data to store the clock tree

2026-07-29T15:25:19Z

Pass each controller's struct mtk_clk_tree through the driver data and use the generic probe function for all the MT8189 clock drivers, instead of a dedicated probe per controller. The apmixedsys, topckgen and vlpckgen controllers keep their own U_BOOT_DRIVER since they rely on dedicated ops and on the parent bind() callback, but they now get their tree from the compatible data, like the clock gate controllers. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-30-23e907516010@baylibre.com Signed-off-by: David Lechner

clk: mediatek: mt8189: deduplicate clock gate drivers

2026-07-29T15:24:37Z

MT8189 already shares a single U_BOOT_DRIVER across all its clock gate controllers, passing the per-controller gate table through the driver data via a dedicated struct mt8189_gate_clk_data. Now that struct mtk_clk_tree can describe the gates directly, drop that bespoke helper: give each controller its own struct mtk_clk_tree (.gates/.num_gates/.gates_offs) and use the generic mtk_clk_topckgen_ops. The gate offset, previously computed at runtime from the first gate ID, is now encoded statically in each tree. This also stops using mtk_common_clk_gate_init() and struct mtk_cg_priv, which are scheduled for removal. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-29-23e907516010@baylibre.com Signed-off-by: David Lechner (dropped _gates_offs arg from GATE_CLK_TREE)

clk: mediatek: mt8512: use driver data to store the clock tree

2026-07-29T15:10:10Z

Pass each controller's struct mtk_clk_tree through the driver data and use the generic probe function for all the MT8512 clock drivers, instead of a dedicated probe per controller. The apmixedsys and topckgen controllers keep their own U_BOOT_DRIVER since they rely on dedicated ops and on the parent bind() callback, but they now get their tree from the compatible data. No functional change intended. Signed-off-by: Julien Stephan Link: https://patch.msgid.link/20260715-b4-mtk-clk-cleanup-clock-gate-drivers-v2-28-23e907516010@baylibre.com Signed-off-by: David Lechner