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clk: rockchip: allow adjusting pll rates on init

Kever Yang linux-arm-kernel 1 version New

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  1. v2 Latest0 of 4 patches 0 repliesNew

Patches in v2 No applies recorded yet

None of the 4 patches the cover letter announces are in this archive.

Reviews trailers per patch

PatchKever Yang
SeriesR-b T-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

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Cover letter [PATCH v2 0/4] clk: rockchip: allow adjusting pll rates on init

Hi Heiko,

Quoted 18 lines · Heiko Stuebner

It was found that some firmware versions initialized the pll rates using suboptimal parameters to achieve frequencies the actual rate table contained better parameters for.

Therefore this series first adds the possibility to create pll-specific flags and then adds a flag to adjust the pll rate on init to the parameters from the rate table.

changes since v1:
- move population of pll_mux before registering the core pll clock null pointer exception in the _set_rate callback when called from init

Heiko Stuebner (4):
clk: rockchip: add ability to specify pll-specific flags
clk: rockchip: setup pll_mux data earlier
clk: rockchip: add optional sync to pll rate parameters
clk: rockchip: add ROCKCHIP_PLL_SYNC_RATE flag to some plls

Quoted 7 lines
  drivers/clk/rockchip/clk-pll.c    | 81 +++++++++++++++++++++++++++++++--------
  drivers/clk/rockchip/clk-rk3188.c |  8 ++--
  drivers/clk/rockchip/clk-rk3288.c | 10 ++---
  drivers/clk/rockchip/clk.c        |  3 +-
  drivers/clk/rockchip/clk.h        | 13 ++++++-
  5 files changed, 88 insertions(+), 27 deletions(-)

The PLLs may have different usage, so add the pll-specific flag make sense.

I have test this patch set on both rk3288 evb and rk3288 pinky.

For this series:

Reviewed-by Kever Yang <[email protected]>
Tested-by Kever Yang <[email protected]>

Read the cover letter in its thread