Thread (27 messages) 27 messages, 4 authors, 2021-11-30

Re: [PATCH 7/8] i2c: Make I2C_EXYNOS5=y impossible when EXYNOS_USI_V2=m

From: Sam Protsenko <semen.protsenko@linaro.org>
Date: 2021-11-29 00:04:49
Also in: linux-arm-kernel, linux-i2c, linux-samsung-soc, linux-serial, linux-spi, lkml

On Sun, 28 Nov 2021 at 00:33, Sam Protsenko [off-list ref] wrote:
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>
---
This patch is not needed, please ignore it.
quoted hunk ↗ jump to hunk
 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
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