[PATCH 2/2] arm64: dts: msm8916-samsung-a5u: Override iris compatible

From: Stephan Gerhold
Date: Thu Aug 22 2019 - 09:45:44 EST


msm8916.dtsi sets the iris compatible to "qcom,wcn3620".
While WCN3620 seems to be used on most MSM8916 devices,
MSM8916 can also be paired with another chip (e.g. for WiFi dual-band).

A5U uses WCN3660B instead, so the compatible needs to be overridden
to apply the correct configuration.

However, simply using "qcom,wcn3660" would be incorrect,
since WCN3660B requires a slightly different regulator configuration
compared to WCN3660.

Instead, it requires the same configuration as "qcom,wcn3680".
Replace the compatible with "qcom,wcn3680" for A5U to make WCNSS
work correctly.

Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
---
I'm not quite sure if it would be better to define a new compatible
for WCN3660B (e.g. "qcom,wcn3660b") since this isn't really a WCN3680.
But in any case, it would use exactly the same configuration.

The compatible seems to be only used for regulator + clock configuration,
see https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/remoteproc/qcom_wcnss_iris.c#n57

arch/arm64/boot/dts/qcom/msm8916-samsung-a5u-eur.dts | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-a5u-eur.dts b/arch/arm64/boot/dts/qcom/msm8916-samsung-a5u-eur.dts
index 1aa59da98495..6629a621139c 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-a5u-eur.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-a5u-eur.dts
@@ -8,3 +8,9 @@
model = "Samsung Galaxy A5U (EUR)";
compatible = "samsung,a5u-eur", "qcom,msm8916";
};
+
+&pronto {
+ iris {
+ compatible = "qcom,wcn3680";
+ };
+};
--
2.22.1