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path: root/drivers/acpi/nfit/core.c
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Diffstat (limited to 'drivers/acpi/nfit/core.c')
-rw-r--r--drivers/acpi/nfit/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 8c234dd9b8bc..80cc7c089a15 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1527,11 +1527,12 @@ static u32 read_blk_stat(struct nfit_blk *nfit_blk, unsigned int bw)
1527{ 1527{
1528 struct nfit_blk_mmio *mmio = &nfit_blk->mmio[DCR]; 1528 struct nfit_blk_mmio *mmio = &nfit_blk->mmio[DCR];
1529 u64 offset = nfit_blk->stat_offset + mmio->size * bw; 1529 u64 offset = nfit_blk->stat_offset + mmio->size * bw;
1530 const u32 STATUS_MASK = 0x80000037;
1530 1531
1531 if (mmio->num_lines) 1532 if (mmio->num_lines)
1532 offset = to_interleave_offset(offset, mmio); 1533 offset = to_interleave_offset(offset, mmio);
1533 1534
1534 return readl(mmio->addr.base + offset); 1535 return readl(mmio->addr.base + offset) & STATUS_MASK;
1535} 1536}
1536 1537
1537static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, 1538static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw,