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| author | Ingo Molnar <mingo@elte.hu> | 2009-09-20 22:24:58 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-20 22:25:03 +0400 |
| commit | bfefb7a0c6e08736f2d5917c468467f134bf28bb (patch) | |
| tree | 7aa7084114dc083fe5b4d7b532901bdeb67188e7 /arch/sh/drivers/heartbeat.c | |
| parent | 8d0cc631f6dd0a9283ceb7d61d8b85ecbcd355ea (diff) | |
| parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
| download | linux-bfefb7a0c6e08736f2d5917c468467f134bf28bb.tar.xz | |
Merge branch 'linus' into x86/urgent
Merge reason: Bring in changes that the next patch will depend on.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sh/drivers/heartbeat.c')
| -rw-r--r-- | arch/sh/drivers/heartbeat.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c index 938817e34e2b..a9339a6174fc 100644 --- a/arch/sh/drivers/heartbeat.c +++ b/arch/sh/drivers/heartbeat.c @@ -40,14 +40,19 @@ static inline void heartbeat_toggle_bit(struct heartbeat_data *hd, if (inverted) new = ~new; + new &= hd->mask; + switch (hd->regsize) { case 32: + new |= ioread32(hd->base) & ~hd->mask; iowrite32(new, hd->base); break; case 16: + new |= ioread16(hd->base) & ~hd->mask; iowrite16(new, hd->base); break; default: + new |= ioread8(hd->base) & ~hd->mask; iowrite8(new, hd->base); break; } @@ -72,6 +77,7 @@ static int heartbeat_drv_probe(struct platform_device *pdev) { struct resource *res; struct heartbeat_data *hd; + int i; if (unlikely(pdev->num_resources != 1)) { dev_err(&pdev->dev, "invalid number of resources\n"); @@ -107,6 +113,10 @@ static int heartbeat_drv_probe(struct platform_device *pdev) hd->nr_bits = ARRAY_SIZE(default_bit_pos); } + hd->mask = 0; + for (i = 0; i < hd->nr_bits; i++) + hd->mask |= (1 << hd->bit_pos[i]); + if (!hd->regsize) hd->regsize = 8; /* default access size */ |