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path: root/drivers/clk/qcom/clk-krait.h
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2018-10-17clk: qcom: Add safe switch hook for krait mux clocksSricharan R1-0/+3
When the Hfplls are reprogrammed during the rate change, the primary muxes which are sourced from the same hfpll for higher frequencies, needs to be switched to the 'safe secondary mux' as the parent for that small window. This is done by registering a clk notifier for the muxes and switching to the safe parent in the PRE_RATE_CHANGE notifier and back to the original parent in the POST_RATE_CHANGE notifier. Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Craig Tatlor <ctatlor97@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-10-17clk: qcom: Add support for Krait clocksStephen Boyd1-0/+37
The Krait clocks are made up of a series of muxes and a divider that choose between a fixed rate clock and dedicated HFPLLs for each CPU. Instead of using mmio accesses to remux parents, the Krait implementation exposes the remux control via cp15 registers. Support these clocks. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Tested-by: Craig Tatlor <ctatlor97@gmail.com> [sboyd@kernel.org: Move hidden config to top outside of the visible qcom config zone so that menuconfig looks nice] Signed-off-by: Stephen Boyd <sboyd@kernel.org>