From 63cf62ddb983c97d19815bb3a480e05ccd9c52b6 Mon Sep 17 00:00:00 2001 From: Lukasz Luba Date: Wed, 2 Oct 2019 08:04:52 +0200 Subject: ARM: dts: exynos: Extend mapped region for DMC on Exynos5422 DMC Adaptive Voltage and Frequency Scaling driver in interrupt mode needs to access registers at address offset near 0x10000. These registers are private DMC performance counters, which might be used as interrupt trigger when overflow. Potential usage is to skip polling in devfreq framework and switch to interrupt managed bandwidth control. Signed-off-by: Lukasz Luba Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/exynos5420.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index 92c5e0d8a824..3293807b99ad 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -239,7 +239,7 @@ dmc: memory-controller@10c20000 { compatible = "samsung,exynos5422-dmc"; - reg = <0x10c20000 0x100>, <0x10c30000 0x100>; + reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>; clocks = <&clock CLK_FOUT_SPLL>, <&clock CLK_MOUT_SCLK_SPLL>, <&clock CLK_FF_DOUT_SPLL2>, -- cgit v1.2.3