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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,
        Necip Fazil Yildiran <fazilyildiran@gmail.com>,
        Dmitry Osipenko <digetx@gmail.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.15 257/530] soc/tegra: fuse: Drop Kconfig dependency on TEGRA20_APB_DMA
Date:   Mon, 24 Oct 2022 13:30:01 +0200
Message-Id: <20221024113056.698007590@linuxfoundation.org>
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From: Dmitry Osipenko <digetx@gmail.com>

[ Upstream commit 2254182807fc09ba9dec9a42ef239e373796f1b2 ]

The DMA subsystem could be entirely disabled in Kconfig and then the
TEGRA20_APB_DMA option isn't available too. Hence kernel configuration
fails if DMADEVICES Kconfig option is disabled due to the unsatisfiable
dependency.

The FUSE driver isn't a critical driver and currently it only provides
NVMEM interface to userspace which isn't known to be widely used, and
thus, it's fine if FUSE driver fails to load.

Let's remove the erroneous Kconfig dependency and let the FUSE driver to
fail the probing if DMA is unavailable.

Fixes: 19d41e5e9c68 ("soc/tegra: fuse: Add APB DMA dependency for Tegra20")
Reported-by: Necip Fazil Yildiran <fazilyildiran@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209301
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/tegra/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
index 8b53ed1cc67e..1224e1c8c2c9 100644
--- a/drivers/soc/tegra/Kconfig
+++ b/drivers/soc/tegra/Kconfig
@@ -136,7 +136,6 @@ config SOC_TEGRA_FUSE
 	def_bool y
 	depends on ARCH_TEGRA
 	select SOC_BUS
-	select TEGRA20_APB_DMA if ARCH_TEGRA_2x_SOC
 
 config SOC_TEGRA_FLOWCTRL
 	bool
-- 
2.35.1