| Message ID | 20191025090201.30246-1-m.szyprowski@samsung.com |
|---|---|
| State | New |
| Headers | show |
| Series | clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume | expand |
On 10/25/19 11:02, Marek Szyprowski wrote: > Properly save and restore all top PLL related configuration registers > during suspend/resume cycle. So far driver only handled EPLL and RPLL > clocks, all other were reset to default values after suspend/resume cycle. > This caused for example lower G3D (MALI Panfrost) performance after system > resume, even if performance governor has been selected. > > Reported-by: Reported-by: Marian Mihailescu <mihailescu2m@gmail.com> > Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list") > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Applied, thanks.
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index d2e06ce58fb5..0aca98492029 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -165,12 +165,18 @@ static const unsigned long exynos5x_clk_regs[] __initconst = { GATE_BUS_CPU, GATE_SCLK_CPU, CLKOUT_CMU_CPU, + CPLL_CON0, + DPLL_CON0, EPLL_CON0, EPLL_CON1, EPLL_CON2, RPLL_CON0, RPLL_CON1, RPLL_CON2, + IPLL_CON0, + SPLL_CON0, + VPLL_CON0, + MPLL_CON0, SRC_TOP0, SRC_TOP1, SRC_TOP2,
Properly save and restore all top PLL related configuration registers during suspend/resume cycle. So far driver only handled EPLL and RPLL clocks, all other were reset to default values after suspend/resume cycle. This caused for example lower G3D (MALI Panfrost) performance after system resume, even if performance governor has been selected. Reported-by: Reported-by: Marian Mihailescu <mihailescu2m@gmail.com> Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> --- drivers/clk/samsung/clk-exynos5420.c | 6 ++++++ 1 file changed, 6 insertions(+) -- 2.17.1