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Groups > linux.kernel > #1323191
| From | Chen-Yu Tsai <wens@csie.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/2] clk: sunxi: Fix APBS clock for Allwinner A80 |
| Date | 2016-02-01 15:50 +0100 |
| Message-ID | <qXnXJ-4fD-41@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Hi everyone, When I did the A80 PRCM support, I failed to notice the A80's APBS clock was not the same as the A23's APB0 clock. The former is a zero-based divider, while the latter is a power-of-two divider. But the lowest 2 dividers are the same. The hardware defaults to the lowest setting, or a /1 divider. Since the child gates do not propagate clk_set_rate up, and no consumers here do clk_set_rate, this actually works. I realized my mistake while reviewing the A83T's PRCM patches. The A83T shares the same PRCM clocks as the A80. Regards ChenYu Chen-Yu Tsai (2): clk: sunxi: Add support for A80 APBS clock ARM: dts: sun9i: Fix apbs clock compatible Documentation/devicetree/bindings/clock/sunxi.txt | 1 + arch/arm/boot/dts/sun9i-a80.dtsi | 2 +- drivers/clk/sunxi/Makefile | 2 +- drivers/clk/sunxi/clk-sun9i-apbs.c | 64 +++++++++++++++++++++++ 4 files changed, 67 insertions(+), 2 deletions(-) create mode 100644 drivers/clk/sunxi/clk-sun9i-apbs.c -- 2.7.0
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[PATCH 0/2] clk: sunxi: Fix APBS clock for Allwinner A80 Chen-Yu Tsai <wens@csie.org> - 2016-02-01 15:50 +0100
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