linux-kernel - [PATCH] net: mdio: mscc-miim: Add depend of REGMAP_MMIO on MDIO_MSCC

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Date:   Tue, 30 Nov 2021 19:02:09 +0800
From:   Tianchen Ding <dtcccc@...ux.alibaba.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Colin Foster <colin.foster@...advantage.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tianchen Ding <dtcccc@...ux.alibaba.com>
Subject: [PATCH] net: mdio: mscc-miim: Add depend of REGMAP_MMIO on MDIO_MSCC_MIIM

There's build error while CONFIG_REGMAP_MMIO is not set
and CONFIG_MDIO_MSCC_MIIM=m.

ERROR: modpost: "__devm_regmap_init_mmio_clk"
[drivers/net/mdio/mdio-mscc-miim.ko] undefined!

Add the depend of REGMAP_MMIO to fix it.

Fixes: a27a76282837 ("net: mdio: mscc-miim: convert to a regmap implementation")
Signed-off-by: Tianchen Ding <dtcccc@...ux.alibaba.com>
---
 drivers/net/mdio/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mdio/Kconfig b/drivers/net/mdio/Kconfig
index 6da1fcb25847..bfa16826a6e1 100644
--- a/drivers/net/mdio/Kconfig
+++ b/drivers/net/mdio/Kconfig
@@ -141,7 +141,7 @@ config MDIO_MVUSB
 
 config MDIO_MSCC_MIIM
 	tristate "Microsemi MIIM interface support"
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && REGMAP_MMIO
 	select MDIO_DEVRES
 	help
 	  This driver supports the MIIM (MDIO) interface found in the network
-- 
2.27.0