From 10e66dc9fcf79534865ddc0253e3eb63e7d7fe9b Mon Sep 17 00:00:00 2001 From: Dawid Niedzwiecki Date: Mon, 8 Jan 2024 14:00:17 +0100 Subject: [PATCH] boards: google_dragonclaw: limit frequency of an unused clock I2S is unused on the dragonclow board. Increase the R division factor (used for I2S), to reduce the clock frequency, which saves some power. Signed-off-by: Dawid Niedzwiecki --- boards/arm/google_dragonclaw/google_dragonclaw.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/boards/arm/google_dragonclaw/google_dragonclaw.dts b/boards/arm/google_dragonclaw/google_dragonclaw.dts index 2f17124747d339..579adf4026f35d 100644 --- a/boards/arm/google_dragonclaw/google_dragonclaw.dts +++ b/boards/arm/google_dragonclaw/google_dragonclaw.dts @@ -37,6 +37,7 @@ mul-n = <192>; /* 16MHz * 192/8 = 384MHz VCO clock */ div-p = <4>; /* 96MHz PLL general clock output */ div-q = <8>; /* 48MHz PLL output for USB, SDIO, RNG */ + div-r = <7>; /* I2S - lowest possible frequency to save power */ clocks = <&clk_hsi>; status = "okay"; };