diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:09:09 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-10-18 01:12:33 +0200 |
| commit | 0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch) | |
| tree | 94a8d419a470a4f9852ca397bb9bbe48db92ff5c /arch/sh/drivers/heartbeat.c | |
| parent | dca2d6ac09d9ef59ff46820d4f0c94b08a671202 (diff) | |
| parent | f39cdf25bf77219676ec5360980ac40b1a7e144a (diff) | |
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile
Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.
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 */ |