From:   Sam Protsenko <semen.protsenko@linaro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Brown <broonie@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc:     Jaewon Kim <jaewon02.kim@samsung.com>,
        Chanho Park <chanho61.park@samsung.com>,
        David Virag <virag.david003@gmail.com>,
        Youngmin Nam <youngmin.nam@samsung.com>,
        devicetree@vger.kernel.org, linux-spi@vger.kernel.org,
        linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
        linux-i2c@vger.kernel.org
Subject: [PATCH 7/8] i2c: Make I2C_EXYNOS5=y impossible when EXYNOS_USI_V2=m
Date:   Sun, 28 Nov 2021 00:32:52 +0200
Message-Id: <20211127223253.19098-8-semen.protsenko@linaro.org>
In-Reply-To: <20211127223253.19098-1-semen.protsenko@linaro.org>
References: <20211127223253.19098-1-semen.protsenko@linaro.org>
MIME-Version: 1.0
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When HSI2C is encapsulated in USIv2 block (e.g. in Exynos850), USIv2
driver must be loaded first, as it's preparing USI hardware for
particular protocol use. Make it impossible for i2c-exynos5 driver to be
built-in when USIv2 driver is built as a module, to prevent incorrect
booting order for those drivers.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
---
 drivers/i2c/busses/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index df89cb809330..e815a9dffb2c 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -613,6 +613,7 @@ config I2C_EXYNOS5
 	tristate "Exynos high-speed I2C driver"
 	depends on OF
 	depends on ARCH_EXYNOS || COMPILE_TEST
+	depends on EXYNOS_USI_V2 || !EXYNOS_USI_V2
 	default y if ARCH_EXYNOS
 	help
 	  High-speed I2C controller on Samsung Exynos5 and newer Samsung SoCs:
-- 
2.30.2