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| author | Baoquan He <bhe@redhat.com> | 2023-07-07 21:58:51 +0800 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2023-07-19 14:50:21 -0700 |
| commit | e7dd44f4f3166db45248414f5df8f615392de47a (patch) | |
| tree | 7230f005471b1fb856e081f280e547ef1f455b12 /drivers/clk/Kconfig | |
| parent | a29b2fccf5f2689a9637be85ff1f51c834c6fb33 (diff) | |
| download | lwn-e7dd44f4f3166db45248414f5df8f615392de47a.tar.gz lwn-e7dd44f4f3166db45248414f5df8f615392de47a.zip | |
clk: fixed-mmio: make COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM
On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.
Here let COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM so that it won't
be built to cause below compiling error if PCI is unset:
------
ld: drivers/clk/clk-fixed-mmio.o: in function `fixed_mmio_clk_setup':
clk-fixed-mmio.c:(.text+0x5e): undefined reference to `of_iomap'
ld: clk-fixed-mmio.c:(.text+0xba): undefined reference to `iounmap'
------
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org
Link: https://lore.kernel.org/r/20230707135852.24292-8-bhe@redhat.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/Kconfig')
| -rw-r--r-- | drivers/clk/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 93f38a8178ba..6b3b424addab 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -444,6 +444,7 @@ config COMMON_CLK_BD718XX config COMMON_CLK_FIXED_MMIO bool "Clock driver for Memory Mapped Fixed values" depends on COMMON_CLK && OF + depends on HAS_IOMEM help Support for Memory Mapped IO Fixed clocks |