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SubjectRe: [PATCH] phy: qcom-usb-hs: add extcon dependency
Quoting Arnd Bergmann (2017-02-01 08:08:55)
> If extcon is a loadable module and qcom-usb-hs is built-in,
> we get a link failure:
> drivers/phy/phy-qcom-usb-hs.o: In function `qcom_usb_hs_phy_power_off':
> phy-qcom-usb-hs.c:(.text.qcom_usb_hs_phy_power_off+0x24): undefined reference to `extcon_unregister_notifier'
> drivers/phy/phy-qcom-usb-hs.o: In function `qcom_usb_hs_phy_power_on':
> phy-qcom-usb-hs.c:(.text.qcom_usb_hs_phy_power_on+0x1a0): undefined reference to `extcon_get_state'
> phy-qcom-usb-hs.c:(.text.qcom_usb_hs_phy_power_on+0x1cc): undefined reference to `extcon_register_notifier'
> drivers/phy/phy-qcom-usb-hs.o: In function `qcom_usb_hs_phy_probe':
> phy-qcom-usb-hs.c:(.text.qcom_usb_hs_phy_probe+0x15c): undefined reference to `extcon_get_edev_by_phandle'
> Adding a hard dependency avoids the problem. Alternatively we could
> use "depends on EXTCON || !EXTCON" to allow building with extcon
> disabled completely, but the other PHY drivers with extcon support
> also just have a dependency, so this is more consistent.
> Fixes: e2427b09ba92 ("phy: Add support for Qualcomm's USB HS phy")
> Signed-off-by: Arnd Bergmann <>

Kishon already sent a patch for this.

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