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Changing the CPU clock requires changing various clocks including the SYS PLL. The existing meson clk-pll and clk-regmap drivers can change all of the relevant clocks already. However, changing for exampe the SYS PLL is problematic because as long as the CPU is running off a clock derived from SYS PLL changing the latter results in a full system lockup. Fix this system lockup by switching the CPU clock to run off the XTAL while we are changing the any of the clocks in the CPU clock tree. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lkml.kernel.org/r/20181115224048.13511-6-martin.blumenstingl@googlemail.com |
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| .. | ||
| axg-aoclk.c | ||
| axg-aoclk.h | ||
| axg-audio.c | ||
| axg-audio.h | ||
| axg.c | ||
| axg.h | ||
| clk-mpll.c | ||
| clk-phase.c | ||
| clk-pll.c | ||
| clk-regmap.c | ||
| clk-regmap.h | ||
| clk-triphase.c | ||
| clkc-audio.h | ||
| clkc.h | ||
| gxbb-aoclk-32k.c | ||
| gxbb-aoclk.c | ||
| gxbb-aoclk.h | ||
| gxbb.c | ||
| gxbb.h | ||
| Kconfig | ||
| Makefile | ||
| meson8b.c | ||
| meson8b.h | ||
| meson-aoclk.c | ||
| meson-aoclk.h | ||
| sclk-div.c | ||
| vid-pll-div.c | ||