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phy: renesas: rcar-gen3-usb2: add regulator dependency

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The driver start registering a regulator, but can still be
enabled even when it is unable to call into the regulator
subsystem:

aarch64-linux-ld: drivers/phy/renesas/phy-rcar-gen3-usb2.o: in function `rcar_gen3_phy_usb2_probe':
phy-rcar-gen3-usb2.c:(.text+0x2884): undefined reference to `devm_regulator_register'

Add a Kconfig dependency to avoid this configuration.

Fixes: b6d7dd1577 ("phy: renesas: rcar-gen3-usb2: Add regulator for OTG VBUS control")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/20260202095118.1233046-1-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Arnd Bergmann 2026-02-02 10:51:14 +01:00 • committed by Vinod Koul
parent 8a13968460
commit 3a03a0e47c
1 changed files with 1 additions and 0 deletions
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drivers/phy/renesas/Kconfig
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@ -29,6 +29,7 @@ config PHY_RCAR_GEN3_USB2
depends on ARCH_RENESAS
depends on EXTCON || !EXTCON # if EXTCON=m, this cannot be built-in
depends on USB_SUPPORT
depends on REGULATOR
select GENERIC_PHY
select MULTIPLEXER
select USB_COMMON