[PATCH v2 1/2] phy: spacemit: fix K1 USB 2.0 PHY Kconfig dependencies

[Bruno Banelli]

phy-k1-usb2.c maps its registers with devm_platform_ioremap_resource()
and wraps them with devm_regmap_init_mmio(), but PHY_SPACEMIT_K1_USB2
neither depends on HAS_IOMEM nor selects REGMAP_MMIO.

REGMAP_MMIO has no prompt and can only be enabled by select, so a
configuration that leaves it off fails to link.  In practice the symbol
is usually pulled in indirectly, which is why this has gone unnoticed.

PHY_SPACEMIT_K1_PCIE, directly above it in the same file, already has
the HAS_IOMEM dependency; without it PHY_SPACEMIT_K1_USB2 can be built
under COMPILE_TEST on architectures that provide no I/O memory.

Fixes: fe4bc1a08638 ("phy: spacemit: support K1 USB2.0 PHY controller")
Signed-off-by: Bruno Banelli <bbanelli at gmail.com>
---
 drivers/phy/spacemit/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/spacemit/Kconfig b/drivers/phy/spacemit/Kconfig
index 5fdf18fce..cd7ae48d8 100644
--- a/drivers/phy/spacemit/Kconfig
+++ b/drivers/phy/spacemit/Kconfig
@@ -18,8 +18,10 @@ config PHY_SPACEMIT_K1_USB2
 	tristate "SpacemiT K1 USB 2.0 PHY support"
 	depends on (ARCH_SPACEMIT || COMPILE_TEST) && OF
 	depends on COMMON_CLK
+	depends on HAS_IOMEM
 	depends on USB_COMMON
 	select GENERIC_PHY
+	select REGMAP_MMIO
 	help
 	  Enable this to support K1 USB 2.0 PHY driver. This driver takes care of
 	  enabling and clock setup and will be used by K1 udc/ehci/otg/xhci driver.
-- 
2.43.0