• Arnd Bergmann's avatar
    ahci: imx: fix building without hwmon or thermal · d7969f59
    Arnd Bergmann authored
    When CONFIG_HWMON is disabled, we now get a link failure:
    
    ERROR: "devm_hwmon_device_register_with_groups" [drivers/ata/ahci_imx.ko] undefined!
    drivers/ata/ahci_imx.o: In function `imx_ahci_probe':
    ahci_imx.c:(.text.imx_ahci_probe+0x304): undefined reference to `devm_thermal_zone_of_sensor_register'
    
    This makes the code calling into the hwmon subsystem compile-time
    conditional, and adds a Kconfig dependency to avoid the corner
    case of having HWMON=m and AHCI_IMX=y, by forcing AHCI_IMX=m in this
    case. The thermal subsystem already has a check in its header, but
    that also doesn't cover the THERMAL=m case, so we need a somewhat
    complex Kconfig expression to handle all cases.
    
    Fixes: 54643a83 ("ahci: imx: Add imx53 SATA temperature sensor support")
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Acked-by: default avatarReviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    d7969f59
ahci_imx.c 23.3 KB