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    Subject[PATCH] arm64: tegra: add regulator dependency
    Date
    From: Arnd Bergmann <arnd@arndb.de>

    The two regulator drivers in the drivers/soc/ directory fail to build
    when regulator support is disabled:

    aarch64-linux-ld: drivers/soc/tegra/regulators-tegra20.o: in function `tegra20_regulator_reboot':
    regulators-tegra20.c:(.text.tegra20_regulator_reboot+0x4c): undefined reference to `regulator_sync_voltage_rdev'
    aarch64-linux-ld: regulators-tegra20.c:(.text.tegra20_regulator_reboot+0x58): undefined reference to `regulator_sync_voltage_rdev'
    aarch64-linux-ld: drivers/soc/tegra/regulators-tegra30.o: in function `tegra30_regulator_reboot':
    regulators-tegra30.c:(.text.tegra30_regulator_reboot+0x44): undefined reference to `regulator_sync_voltage_rdev'
    aarch64-linux-ld: regulators-tegra30.c:(.text.tegra30_regulator_reboot+0x50): undefined reference to `regulator_sync_voltage_rdev'

    Add a Kconfig dependency to avoid this configuration.

    Fixes: 496747e7d907 ("soc/tegra: regulators: Add regulators coupler for Tegra20")
    Fixes: 783807436f36 ("soc/tegra: regulators: Add regulators coupler for Tegra30")
    Signed-off-by: Arnd Bergmann <arnd@arndb.de>
    ---
    drivers/soc/tegra/Kconfig | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
    index db49075b1946..c56122be27a9 100644
    --- a/drivers/soc/tegra/Kconfig
    +++ b/drivers/soc/tegra/Kconfig
    @@ -153,8 +153,10 @@ config SOC_TEGRA_POWERGATE_BPMP

    config SOC_TEGRA20_VOLTAGE_COUPLER
    bool "Voltage scaling support for Tegra20 SoCs"
    + depends on REGULATOR
    depends on ARCH_TEGRA_2x_SOC || COMPILE_TEST

    config SOC_TEGRA30_VOLTAGE_COUPLER
    bool "Voltage scaling support for Tegra30 SoCs"
    + depends on REGULATOR
    depends on ARCH_TEGRA_3x_SOC || COMPILE_TEST
    --
    2.29.2
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