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firmware: arm_scmi: use ioread64() instead of ioread64_hi_lo()

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The scmi_common_fastchannel_db_ring() function calls either ioread64()
or ioread64_hi_lo() depending on whether it is compiler for 32-bit
or 64-bit architectures.

The same logic is used to define ioread64() itself in the
linux/io-64-nonatomic-hi-lo.h header file, so the special case
is not really needed.

The behavior here should not change at all.

Fixes: 6f9ea4dabd ("firmware: arm_scmi: Generalize the fast channel support")
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20250304144346.1025658-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2025-03-04 15:43:34 +01:00
parent 4f1afeaa30
commit 3b8c56d807
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1 changed files with 0 additions and 10 deletions
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10
drivers/firmware/arm_scmi/driver.c
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@ -1997,17 +1997,7 @@ static void scmi_common_fastchannel_db_ring(struct scmi_fc_db_info *db)
else if (db->width == 4)
SCMI_PROTO_FC_RING_DB(32);
else /* db->width == 8 */
#ifdef CONFIG_64BIT
SCMI_PROTO_FC_RING_DB(64);
#else
{
u64 val = 0;
if (db->mask)
val = ioread64_hi_lo(db->addr) & db->mask;
iowrite64_hi_lo(db->set | val, db->addr);
}
#endif
}
/**