diff options
author | David S. Miller <davem@davemloft.net> | 2008-11-11 15:43:02 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2008-11-11 15:43:02 -0800 |
commit | 7e452baf6b96b5aeba097afd91501d33d390cc97 (patch) | |
tree | 9b0e062d3677d50d731ffd0fba47423bfdee9253 /drivers/media/video/cx18/cx18-io.c | |
parent | 3ac38c3a2e7dac3f8f35a56eb85c27881a4c3833 (diff) | |
parent | f21f237cf55494c3a4209de323281a3b0528da10 (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/message/fusion/mptlan.c
drivers/net/sfc/ethtool.c
net/mac80211/debugfs_sta.c
Diffstat (limited to 'drivers/media/video/cx18/cx18-io.c')
-rw-r--r-- | drivers/media/video/cx18/cx18-io.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c index 700ab9439c16..220fae8d4ad7 100644 --- a/drivers/media/video/cx18/cx18-io.c +++ b/drivers/media/video/cx18/cx18-io.c @@ -88,6 +88,19 @@ void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) cx18_log_write_retries(cx, i, addr); } +void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, + u32 eval, u32 mask) +{ + int i; + eval &= mask; + for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) { + cx18_writel_noretry(cx, val, addr); + if (eval == (cx18_readl_noretry(cx, addr) & mask)) + break; + } + cx18_log_write_retries(cx, i, addr); +} + void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr) { int i; @@ -218,7 +231,7 @@ void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) void cx18_sw1_irq_enable(struct cx18 *cx, u32 val) { u32 r; - cx18_write_reg(cx, val, SW1_INT_STATUS); + cx18_write_reg_expect(cx, val, SW1_INT_STATUS, ~val, val); r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI); cx18_write_reg(cx, r | val, SW1_INT_ENABLE_PCI); } @@ -233,7 +246,7 @@ void cx18_sw1_irq_disable(struct cx18 *cx, u32 val) void cx18_sw2_irq_enable(struct cx18 *cx, u32 val) { u32 r; - cx18_write_reg(cx, val, SW2_INT_STATUS); + cx18_write_reg_expect(cx, val, SW2_INT_STATUS, ~val, val); r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI); cx18_write_reg(cx, r | val, SW2_INT_ENABLE_PCI); } |