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Nicolas Frattaroli e277168cab clk: rockchip: introduce GRF gates
Some rockchip SoCs, namely the RK3576, have bits in a General Register
File (GRF) that act just like clock gates. The downstream vendor kernel
simply maps over the already mapped GRF range with a generic clock gate
driver. This solution isn't suitable for upstream, as a memory range
will be in use by multiple drivers at the same time, and it leaks
implementation details into the device tree.

Instead, implement this with a new clock branch type in the Rockchip
clock driver: GRF gates. Somewhat akin to MUXGRF, this clock branch
depends on the type of GRF, but functions like a gate instead.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250502-rk3576-sai-v3-3-376cef19dd7c@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
History 2025-05-05 22:39:24 +02:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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