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riscv: dts: allwinner: d1: Add PMU event node
D1 has several pmu events supported by opensbi. These events can be used by perf for profiling. Signed-off-by: Inochi Amaoto <inochiama@outlook.com> Link: https://dl.linux-sunxi.org/D1/Xuantie_C906_R1S0_User_Manual.pdf Link: https://github.com/T-head-Semi/openc906/blob/main/C906_RTL_FACTORY/gen_rtl/pmu/rtl/aq_hpcp_top.v#L657 Reviewed-by: Guo Ren <guoren@kernel.org> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/IA1PR20MB49534918FCA69399CE2E0C53BBE0A@IA1PR20MB4953.namprd20.prod.outlook.com Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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