Re: [PATCH 3/4] arm64: dts: msm8996: Add SMEM DT nodes

From: Sarangdhar Joshi
Date: Thu Oct 20 2016 - 18:00:00 EST


On 10/20/2016 02:51 PM, Andy Gross wrote:
On Thu, Oct 20, 2016 at 02:18:33PM -0700, Sarangdhar Joshi wrote:
On 10/20/2016 12:56 PM, Bjorn Andersson wrote:
On Thu 20 Oct 11:56 PDT 2016, Sarangdhar Joshi wrote:

From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

Add SMEM and TCSR DT nodes on MSM8996.

Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Signed-off-by: Sarangdhar Joshi <spjoshi@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/msm8996.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 949b096..0a810f5 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -169,12 +169,31 @@
method = "smc";
};

+ smem {
+ compatible = "qcom,smem";
+
+ memory-region = <&smem_mem>;
+
+ hwlocks = <&tcsr_mutex 3>;
+ };
+
soc: soc {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0 0 0xffffffff>;
compatible = "simple-bus";

+ tcsr_mutex_regs: syscon@740000 {
+ compatible = "syscon";
+ reg = <0x740000 0x20000>;
+ };
+
+ tcsr_mutex: hwlock {
+ compatible = "qcom,tcsr-mutex";
+ syscon = <&tcsr_mutex_regs 0 0x1000>;
+ #hwlock-cells = <1>;
+ };

Sorry, I got this in the wrong place, the hwlock node should sit outside
of soc {} - looks like we got this wrong in msm8916 as well.

Thanks for reviewing the patch. Do you mean to move it under / {}; (i.e.
root)?

Yes. Any node that doesn't have reg properties should go under the root.


Got it. Will update the patch(es) and add cover letter. Thanks.


Andy


Regards,
Sarang
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