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ARM: sa11x0: neponset: provide function to manipulate NCR_0

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Rather than having direct register accesses to NCR_0 scattered amongst
the code, provide a function instead.  This contains the necessary
race protection for this platform, ensuring that updates to this
register are safe.

Signed-off-by: Russell King <[email protected]>
This commit is contained in:
Russell King 2012-01-16 09:31:47 +00:00
commit 6ad1b61400
4 changed files with 15 additions and 7 deletions
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7
drivers/pcmcia/sa1100_neponset.c
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@ -94,12 +94,7 @@ neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_sta
ret = sa1111_pcmcia_configure_socket(skt, state);
if (ret == 0) {
unsigned long flags;
local_irq_save(flags);
NCR_0 = (NCR_0 & ~ncr_mask) | ncr_set;
local_irq_restore(flags);
neponset_ncr_frob(ncr_mask, ncr_set);
sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set);
}