diff options
Diffstat (limited to 'sys/dev/extres/clk/clk_gate.c')
| -rw-r--r-- | sys/dev/extres/clk/clk_gate.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sys/dev/extres/clk/clk_gate.c b/sys/dev/extres/clk/clk_gate.c index 2107450..e0673fd 100644 --- a/sys/dev/extres/clk/clk_gate.c +++ b/sys/dev/extres/clk/clk_gate.c @@ -46,7 +46,10 @@ __FBSDID("$FreeBSD$"); CLKDEV_READ_4(clknode_get_device(_clk), off, val) #define MD4(_clk, off, clr, set ) \ CLKDEV_MODIFY_4(clknode_get_device(_clk), off, clr, set) - +#define DEVICE_LOCK(_clk) \ + CLKDEV_DEVICE_LOCK(clknode_get_device(_clk)) +#define DEVICE_UNLOCK(_clk) \ + CLKDEV_DEVICE_UNLOCK(clknode_get_device(_clk)) static int clknode_gate_init(struct clknode *clk, device_t dev); static int clknode_gate_set_gate(struct clknode *clk, bool enable); @@ -77,7 +80,9 @@ clknode_gate_init(struct clknode *clk, device_t dev) int rv; sc = clknode_get_softc(clk); + DEVICE_LOCK(clk); rv = RD4(clk, sc->offset, ®); + DEVICE_UNLOCK(clk); if (rv != 0) return (rv); reg = (reg >> sc->shift) & sc->mask; @@ -95,11 +100,15 @@ clknode_gate_set_gate(struct clknode *clk, bool enable) sc = clknode_get_softc(clk); sc->ungated = enable; + DEVICE_LOCK(clk); rv = MD4(clk, sc->offset, sc->mask << sc->shift, (sc->ungated ? sc->on_value : sc->off_value) << sc->shift); - if (rv != 0) + if (rv != 0) { + DEVICE_UNLOCK(clk); return (rv); + } RD4(clk, sc->offset, ®); + DEVICE_UNLOCK(clk); return(0); } |
