linux-kernel - [PATCH v2] arm64: dts: qcom: msm8998-mtp: Add alias for blsp1

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Message-Id: <20191119011823.379100-1-bjorn.andersson@linaro.org>
Date:   Mon, 18 Nov 2019 17:18:23 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] arm64: dts: qcom: msm8998-mtp: Add alias for blsp1_uart3

The msm_serial driver has a predefined set of uart ports defined, which
is allocated either by reading aliases or if no match is found a simple
counter, starting at index 0. But there's no logic in place to prevent
these two allocation mechanism from colliding. As a result either none
or all of the active msm_serial instances must be listed as aliases.

Define blsp1_uart3 as "serial1" to mitigate this problem.

Fixes: 4cffb9f2c700 ("arm64: dts: qcom: msm8998-mtp: Enable bluetooth")
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---

Changes since v1:
- Rewrote commit message

 arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
index 5f101a20a20a..e08fcb426bbf 100644
--- a/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998-mtp.dtsi
@@ -9,6 +9,7 @@
 / {
 	aliases {
 		serial0 = &blsp2_uart1;
+		serial1 = &blsp1_uart3;
 	};
 
 	chosen {
-- 
2.23.0