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authorLinus Walleij <linus.walleij@linaro.org>2022-08-16 22:48:32 +0200
committerMark Brown <broonie@kernel.org>2022-08-17 13:00:32 +0100
commit81c0386c1376da54f05d6916936db5220df9f97d (patch)
tree777856fd50029e2ffdff92413e60c89145cbb7b4 /arch/hexagon
parentc20cc099b30abd50f563e422aa72edcd7f92da55 (diff)
regmap: mmio: Support accelerared noinc operations
Use the newly added callback for accelerated noinc MMIO to provide writesb, writesw, writesl, writesq, readsb, readsw, readsl and readsq. A special quirk is needed to deal with big endian regmaps: there are no accelerated operations defined for big endian, so fall back to calling the big endian operations itereatively for this case. The Hexagon architecture turns out to have an incomplete <asm/io.h>: writesb() is not implemented. Fix this by doing what other architectures do: include <asm-generic/io.h> into the <asm/io.h> file. Cc: Brian Cain <bcain@quicinc.com> Cc: linux-hexagon@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220816204832.265837-2-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'arch/hexagon')
-rw-r--r--arch/hexagon/include/asm/io.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index c33241425a5c..8e938dc1ca4b 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -308,6 +308,8 @@ static inline void outsl(unsigned long port, const void *buffer, int count)
}
}
+#include <asm-generic/io.h>
+
#endif /* __KERNEL__ */
#endif