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powerpc/mpic: Don't open-code dcr_resource_start 

Don't open-code the OpenFirmware "dcr-reg" property lookup trying to map
DCR resources.  This makes the code a bit easier to read.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
hifive-unleashed-5.1
Kyle Moffett 2011-12-02 06:28:04 +00:00 committed by Benjamin Herrenschmidt
parent be8bec56df
commit e62b760179
1 changed files with 2 additions and 5 deletions
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7
arch/powerpc/sysdev/mpic.c
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@ -319,11 +319,8 @@ static void _mpic_map_dcr(struct mpic *mpic, struct device_node *node,
struct mpic_reg_bank *rb,
unsigned int offset, unsigned int size)
{
const u32 *dbasep;
dbasep = of_get_property(node, "dcr-reg", NULL);
rb->dhost = dcr_map(node, *dbasep + offset, size);
phys_addr_t phys_addr = dcr_resource_start(node, 0);
rb->dhost = dcr_map(mpic->node, phys_addr + offset, size);
BUG_ON(!DCR_MAP_OK(rb->dhost));
}