Skip to content

ARM: DT: remove redundant DT related code

Sudeep KarkadaNagesha linux-arm-kernel 1 version New

Get series with b4
b4 am [email protected]

Versions newest first

  1. v1 Latest0 of 5 patches 0 repliesNew

Patches in v1 No applies recorded yet

None of the 5 patches the cover letter announces are in this archive.

Reviews trailers per patch

No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.

Read the v1 thread

Cover letter [PATCH 0/5] ARM: DT: remove redundant DT related code
Quoted 15 lines · Michal Simek
Quoted 14 lines · Sudeep KarkadaNagesha

From: Sudeep KarkadaNagesha <[email protected]>

Hi,

As part of my changes to remove duplicate code for parsing cpu nodes in the device tree, I found few unnecessary code mostly around smp_init_cpus. Most of the ARM Cortex A9 based platforms use SCU to get the number of cpus while many others depend on the device tree.

Even on DT based platforms using SCU, they can be made to depend on DT to cpu count simplifying smp_init_cpus. In fact arm_dt_init_cpu_maps called before smp_init_cpus, already does the device tree parsing, validating nr_cpu_ids and setting the cpu_possible_mask appropriately.

Quoted 5 lines
Quoted 2 lines

However this series targets only the platforms using DT for cpu count (i.e. not using SCU)

Just a note. Zynq is using SCU to get cpu count not DT.

Correct, when I saw that vexpress and zynq were only 2 platforms setting cpu_present_mask which is unnecessary, I added Zynq last minute to this series.

Regards,
Sudeep

Read the cover letter in its thread