For allwinner A31 ahb1 and a83t ahb1 clocks have predivider for certain parent.
Currently, it's being handled in clock specific functions. A83t ahb1 and a31 ahb1 are similar clocks except a83t parent index 0b10 and 0b11 are pll6/prediv and a31 ahb1 parent index 0x11 is pll6/prediv. with only this change, code duplication was needed. To handle this, this patch adds predivider table with parent index, prediv shift and width, parents with predivider will have nonzero width. Rate adjustment is moved from clock specific recalc function to generic factors recalc. clock specific recalc was currently used only by a31 ahb1. For getter, it differentiates parents with prediv, with non-zero prediv width. I've tested this patch on a83t bpi-m3 board. I do not have a31 device. a83t changes are not included in this patch, It'll be included in separate patch. Vishnu Patekar (2): clk: sunxi: add predivider handling for factors clock clk: sunxi: add prediv table for a31 ahb1 clock drivers/clk/sunxi/clk-factors.c | 31 +++++++++++++++---------------- drivers/clk/sunxi/clk-factors.h | 10 +++++++++- drivers/clk/sunxi/clk-sunxi.c | 31 +++++++++---------------------- 3 files changed, 33 insertions(+), 39 deletions(-) -- 1.9.1
