diff options
| author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2014-03-17 17:34:13 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-03-17 21:44:17 +0400 |
| commit | f4b5a8032d513a11ef919305048f00e812605318 (patch) | |
| tree | 68975307b35ff82cf63da3c570ec3dfcd7b611da /drivers/net/wireless/ath/wil6210/interrupt.c | |
| parent | 98a65b59f8109cfafcc3c13b34895087b90dc630 (diff) | |
| download | linux-f4b5a8032d513a11ef919305048f00e812605318.tar.xz | |
wil6210: fix for HW bug in interrupt setup logic
Hardware bug triggered by the MSI init while INTx asserted for some reason.
De-assert INTx prior to MSI set-up
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/interrupt.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/interrupt.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c index 10919f95a83c..52c40e1d593a 100644 --- a/drivers/net/wireless/ath/wil6210/interrupt.c +++ b/drivers/net/wireless/ath/wil6210/interrupt.c @@ -493,6 +493,23 @@ free0: return rc; } +/* can't use wil_ioread32_and_clear because ICC value is not ser yet */ +static inline void wil_clear32(void __iomem *addr) +{ + u32 x = ioread32(addr); + + iowrite32(x, addr); +} + +void wil6210_clear_irq(struct wil6210_priv *wil) +{ + wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_RX_ICR) + + offsetof(struct RGF_ICR, ICR)); + wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_TX_ICR) + + offsetof(struct RGF_ICR, ICR)); + wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_MISC_ICR) + + offsetof(struct RGF_ICR, ICR)); +} int wil6210_init_irq(struct wil6210_priv *wil, int irq) { |