kernel/git/stable/linux.git/drivers/clk/rockchip, branch linux-7.2.y

clk: rockchip: rk3588: don't disable unused I2S MCLK output gates

2026-06-28T19:09:50+00:00

No in-tree board references these gates yet. Boards drive the codec MCLK through the parent I2S*_8CH_MCLKOUT, and now that the gates are managed clocks, clk_disable_unused() turns them off at boot. On a board that relied on firmware leaving the output enabled, that cuts the MCLK and analog audio stops working. Mark the four gates CLK_IGNORE_UNUSED so an unreferenced gate keeps the state firmware left. A board that wants the kernel to own the gate can reference I2S*_8CH_MCLKOUT_TO_IO from DT instead. Fixes: 02b9b0bb6269 ("clk: rockchip: rk3588: add GATE_GRF clocks for I2S MCLK output to IO") Reported-by: Diederik de Haas Closes: https://lore.kernel.org/linux-rockchip/DJGDSS875DDO.22TYPVYK5X8KZ@cknow-tech.com/ Tested-by: Diederik de Haas Signed-off-by: Daniele Briguglio Tested-by: Ricardo Pardini # on R58X-Pro+NanoPC-T6 Reviewed-by: Sebastian Reichel Link: https://patch.msgid.link/20260624123914.1767374-1-hello@superkali.me Signed-off-by: Heiko Stuebner

clk: rockchip: allow COMPILE_TEST builds

2026-05-13T10:35:57+00:00

COMMON_CLK_ROCKCHIP already gates the Rockchip clock objects inside the Rockchip clock Makefile. Allow selecting it for COMPILE_TEST and use it for the parent Makefile descent instead of ARCH_ROCKCHIP. The per-SoC Rockchip clock symbols already have COMPILE_TEST dependencies, so this exposes the existing build coverage to other architectures without selecting the Rockchip platform. Tested with: make LLVM=1 ARCH=loongarch drivers/clk/rockchip/ Assisted-by: Codex:GPT-5.5 Signed-off-by: Rosen Penev Reviewed-by: Brian Masney Link: https://patch.msgid.link/20260509003602.956186-1-rosenp@gmail.com Signed-off-by: Heiko Stuebner

clk: rockchip: rk3588: add GATE_GRF clocks for I2S MCLK output to IO

2026-04-27T11:53:27+00:00

The I2S MCLK outputs on RK3588 are gated by bits in the SYS_GRF register SOC_CON6 (offset 0x318). These gates control whether the internal CRU MCLK signals reach the external IO pins connected to audio codecs. The kernel should explicitly manage these gates so that audio functionality does not depend on bootloader register state. This is analogous to what was done for RK3576 SAI MCLK outputs [1]. Register the SYS_GRF as an auxiliary GRF with grf_type_sys using rockchip_clk_add_grf(), and add GATE_GRF entries for all four I2S MCLK output gates: - I2S0_8CH_MCLKOUT_TO_IO (bit 0) - I2S1_8CH_MCLKOUT_TO_IO (bit 1) - I2S2_2CH_MCLKOUT_TO_IO (bit 2) - I2S3_2CH_MCLKOUT_TO_IO (bit 7) Board DTS files that need MCLK on an IO pin can reference these clocks, e.g.: clocks = <&cru I2S0_8CH_MCLKOUT_TO_IO>; Tested on the Youyeetoo YY3588 (RK3588) with an ES8388 codec on I2S0. [1] https://lore.kernel.org/r/20250305-rk3576-sai-v1-2-64e6cf863e9a@collabora.com/ Tested-by: Ricardo Pardini Signed-off-by: Daniele Briguglio Link: https://patch.msgid.link/20260419-rk3588-mclk-gate-grf-v4-5-513a42dd1dcc@superkali.me Signed-off-by: Heiko Stuebner

clk: rockchip: add helper to register auxiliary GRFs

2026-04-27T11:32:10+00:00

Add rockchip_clk_add_grf() as a helper to register an auxiliary GRF into the clock provider's aux_grf_table. This encapsulates the struct rockchip_aux_grf allocation and hashtable insertion, so SoC clock drivers do not need to open-code it. Suggested-by: Heiko Stuebner Signed-off-by: Daniele Briguglio Link: https://patch.msgid.link/20260419-rk3588-mclk-gate-grf-v4-3-513a42dd1dcc@superkali.me Signed-off-by: Heiko Stuebner

clk: rockchip: allow grf_type_sys lookup in aux_grf_table

2026-04-27T11:32:10+00:00

Remove the grf_type_sys exclusion from the auxiliary GRF table lookup in rockchip_clk_register_branches(). Previously, branches with grf_type_sys always used ctx->grf directly, bypassing the aux_grf_table. This is a problem on SoCs like RK3588 where ctx->grf points to the PHP_GRF (set via the CRU's rockchip,grf phandle), but GATE_GRF clock entries need to access the SYS_GRF instead. With this change, grf_type_sys branches first check the aux_grf_table, and fall back to ctx->grf if no entry is found. This is backwards compatible: on SoCs that do not register grf_type_sys in the aux_grf_table, the behavior is unchanged. Reviewed-by: Nicolas Frattaroli Signed-off-by: Daniele Briguglio Tested-by: Ricardo Pardini Link: https://patch.msgid.link/20260419-rk3588-mclk-gate-grf-v4-2-513a42dd1dcc@superkali.me Signed-off-by: Heiko Stuebner

clk: rockchip: rk3568: Add PCIe pipe clock gates

2026-03-10T08:34:27+00:00

The PCIe pipe clocks are currently left as orphan clocks and remain enabled indefinitely, which is suboptimal. Add the missing clock gates so the PCIe driver can explicitly manage them when not in use. In order not to break compatibility with old DTB, mark them as CLK_IGNORE_UNUSED. Signed-off-by: Shawn Lin Link: https://patch.msgid.link/1772799641-32164-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Heiko Stuebner

clk: rockchip: Add clock controller for the RV1103B

2026-03-02T11:51:26+00:00

Add the clock and reset tree definitions for the RV1103B SoC. Based on the 5.10 Rockchip vendor kernel driver. Signed-off-by: Fabio Estevam Link: https://patch.msgid.link/20260210022620.172570-2-festevam@gmail.com Signed-off-by: Heiko Stuebner

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

clk: rockchip: Fix error pointer check after rockchip_clk_register_gate_link()

2026-01-09T20:16:20+00:00

Replace NULL check with IS_ERR_OR_NULL() check after calling rockchip_clk_register_gate_link() since this function returns error pointers (ERR_PTR). Fixes: c62fa612cfa6 ("clk: rockchip: implement linked gate clock support") Signed-off-by: Miaoqian Lin Link: https://patch.msgid.link/20250805030358.3665878-1-linmq006@gmail.com Signed-off-by: Heiko Stuebner