linux-kernel - [PATCH AUTOSEL 5.4 01/13] arm64: dts: qcom: sdm845: narrow LLCC address space

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Date:   Tue, 11 Oct 2022 10:53:26 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Steev Klimaszewski <steev@...i.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <sashal@...nel.org>, agross@...nel.org,
        robh+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 01/13] arm64: dts: qcom: sdm845: narrow LLCC address space

From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

[ Upstream commit 300b5f661eebefb8571841b78091343eb87eca54 ]

The Last Level Cache Controller (LLCC) device does not need to access
entire LLCC address space.  Currently driver uses only hardware info and
status registers which both reside in LLCC0_COMMON range (offset
0x30000, size 0x1000).  Narrow the address space to allow binding other
drivers to rest of LLCC address space.

Cc: Rajendra Nayak <quic_rjendra@...cinc.com>
Cc: Sibi Sankar <quic_sibis@...cinc.com>
Reported-by: Steev Klimaszewski <steev@...i.org>
Suggested-by: Sibi Sankar <quic_sibis@...cinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Tested-by: Steev Klimaszewski <steev@...i.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Link: https://lore.kernel.org/r/20220728113748.170548-11-krzysztof.kozlowski@linaro.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 2287354fef86..76f905c32aee 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -1359,7 +1359,7 @@ uart15: serial@...000 {
 
 		cache-controller@...0000 {
 			compatible = "qcom,sdm845-llcc";
-			reg = <0 0x01100000 0 0x200000>, <0 0x01300000 0 0x50000>;
+			reg = <0 0x01100000 0 0x31000>, <0 0x01300000 0 0x50000>;
 			reg-names = "llcc_base", "llcc_broadcast_base";
 			interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;
 		};
-- 
2.35.1