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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Frank Rowand <frank.rowand@sony.com>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Andy Gross <andy.gross@linaro.org>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 027/639] ARM: qcom_defconfig: Enable MAILBOX
Date:   Fri, 24 Jan 2020 10:23:17 +0100
Message-Id: <20200124093050.738625323@linuxfoundation.org>
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From: Frank Rowand <frank.rowand@sony.com>

[ Upstream commit 54c2678cd198f61555796bbda5e1727e6e1858f1 ]

Problem:
ab460a2e72da ("rpmsg: qcom_smd: Access APCS through mailbox framework"
added a "depends on MAILBOX") to RPMSG_QCOM_SMD, thus RPMSG_QCOM_SMD
becomes unset since MAILBOX was not enabled in qcom_defconfig and is
not otherwise selected for the dragonboard.  When the resulting
kernel is booted the mmc device which contains the root file system
is not available.

Fix:
add CONFIG_MAILBOX to qcom_defconfig

Fixes: ab460a2e72da ("rpmsg: qcom_smd: Access APCS through mailbox framework"
added a "depends on MAILBOX")

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/configs/qcom_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/qcom_defconfig b/arch/arm/configs/qcom_defconfig
index 6aa7046fb91ff..bd6440f234939 100644
--- a/arch/arm/configs/qcom_defconfig
+++ b/arch/arm/configs/qcom_defconfig
@@ -207,6 +207,7 @@ CONFIG_MSM_MMCC_8974=y
 CONFIG_MSM_IOMMU=y
 CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y
+CONFIG_MAILBOX=y
 CONFIG_REMOTEPROC=y
 CONFIG_QCOM_ADSP_PIL=y
 CONFIG_QCOM_Q6V5_PIL=y
-- 
2.20.1