diff options
Diffstat (limited to 'drivers/acpi/nfit/core.c')
-rw-r--r-- | drivers/acpi/nfit/core.c | 3 |
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 | ||
1537 | static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, | 1538 | static void write_blk_ctl(struct nfit_blk *nfit_blk, unsigned int bw, |