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phy: qcom-qusb2: add NVMEM dependency

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With CONFIG_NVMEM=m and CONFIG_PHY_QCOM_QUSB2=y we get a link error from
calls to devm_nvmem_cell_get and nvmem_cell_read:

drivers/built-in.o: In function `qusb2_phy_probe':
binder.c:(.text+0x4750): undefined reference to `devm_nvmem_cell_get'
drivers/built-in.o: In function `qusb2_phy_init':
binder.c:(.text+0x489c): undefined reference to `nvmem_cell_read'

Fix this by adding a Kconfig dependency to ensure we can only have this
driver built in when the nvmem functions are also built in or we see the
empty stub functions. We can still build this driver as a module when the
nvmem core is build as module, too.

Fixes: deffad633413 ("phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Tobias Regnery 2017-04-10 11:52:42 +02:00 committed by Kishon Vijay Abraham I
parent 9d685ed77b
commit 6239879b41
1 changed files with 1 additions and 0 deletions
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drivers/phy/Kconfig
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@ -450,6 +450,7 @@ config PHY_QCOM_QMP
config PHY_QCOM_QUSB2
tristate "Qualcomm QUSB2 PHY Driver"
depends on OF && (ARCH_QCOM || COMPILE_TEST)
depends on NVMEM || !NVMEM
select GENERIC_PHY
help
Enable this to support the HighSpeed QUSB2 PHY transceiver for USB