From 39879c7d963ef6392235b2cc107c2d6dd25aa55d Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Wed, 7 Jun 2017 16:27:27 -0500 Subject: [PATCH] ARM: dts: dra7xx-clocks: Source IPU1 functional clock from CORE DPLL The IPU1 functional clock is actually the output of a mux clock, ipu1_gfclk_mux. The mux clock is sourced by default from the DPLL_ABE_X2_CLK, and this results in a rather odd clock frequency (361 MHz) for the IPU1 functional clock on platforms where ABE_DPLL is configured properly. Reconfigure the mux clock to be sourced from CORE_IPU_ISS_BOOST_CLK (dpll_core_h22x2_ck), so that both the IPU1 and IPU2 are running from the same clock and clocked at the same nominal frequency of 425 MHz. This also ensures that IPU1 functional clock is always configured properly and becomes independent of the state of the ABE DPLL on all boards. Signed-off-by: Suman Anna Acked-by: Tero Kristo Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/dra7xx-clocks.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi index 3330738e4c6e..cfaf27215901 100644 --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi @@ -791,6 +791,8 @@ clocks = <&dpll_abe_m2x2_ck>, <&dpll_core_h22x2_ck>; ti,bit-shift = <24>; reg = <0x0520>; + assigned-clocks = <&ipu1_gfclk_mux>; + assigned-clock-parents = <&dpll_core_h22x2_ck>; }; mcasp1_ahclkr_mux: mcasp1_ahclkr_mux@550 { -- 2.25.1