> > + base = devm_ioremap_resource(&pdev->dev, res);
> > + if (IS_ERR(base))
> > + return PTR_ERR(base);
> > +
> > + imx2_wdt.regmap = devm_regmap_init_mmio_clk(&pdev->dev, NULL, base,
> > + &imx2_wdt_regmap_config);
>
> This patch causes the following buiild failure:
>
> Building arm:imx_v4_v5_defconfig ... failed
> --------------
> Error log:
> drivers/built-in.o: In function `imx2_wdt_probe':
> clk-composite.c:(.init.text+0x82c4): undefined reference to
> `devm_regmap_init_mmio_clk'
> make: *** [vmlinux] Error 1
> --------------
>
> This is on top of
>
> b33ce44 Merge branch 'for-3.15/drivers' of git://git.kernel.dk/linux-block
>
> Does it have build dependencies on code which is (or was) not yet available
> in mainline ?
>
This is caused by not compiling the regmap core.
Could you add the following patch to have a try ?
==========================
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 79d2589..3e55fa9 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -369,6 +369,7 @@ config MAX63XX_WATCHDOG
config IMX2_WDT
tristate "IMX2+ Watchdog"
depends on ARCH_MXC
+ select REGMAP_MMIO
help
This is the driver for the hardware watchdog
on the Freescale IMX2 and later processors.
--------------------------
If it's okey, I'll sent the v5 series to fix this.
Thanks very much,
BRs
Xiubo
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