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| author | Vinod Koul <vinod.koul@intel.com> | 2018-01-31 09:21:16 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2018-01-31 09:21:16 +0100 |
| commit | db90305b1ffebf57abd2c05e27c2a30a893fb397 (patch) | |
| tree | 90c4e30d86f0e702120f5b703f2eb6e856df0bae /drivers/dma | |
| parent | Merge branch 'topic/tegra' into for-linus (diff) | |
| parent | dmaengine: ti-dma-crossbar: Fix event mapping for TPCC_EVT_MUX_60_63 (diff) | |
| download | linux-db90305b1ffebf57abd2c05e27c2a30a893fb397.tar.xz linux-db90305b1ffebf57abd2c05e27c2a30a893fb397.zip | |
Merge branch 'topic/ti' into for-linus
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ti-dma-crossbar.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c index 7df910e7c348..9272b173c746 100644 --- a/drivers/dma/ti-dma-crossbar.c +++ b/drivers/dma/ti-dma-crossbar.c @@ -54,7 +54,15 @@ struct ti_am335x_xbar_map { static inline void ti_am335x_xbar_write(void __iomem *iomem, int event, u8 val) { - writeb_relaxed(val, iomem + event); + /* + * TPCC_EVT_MUX_60_63 register layout is different than the + * rest, in the sense, that event 63 is mapped to lowest byte + * and event 60 is mapped to highest, handle it separately. + */ + if (event >= 60 && event <= 63) + writeb_relaxed(val, iomem + (63 - event % 4)); + else + writeb_relaxed(val, iomem + event); } static void ti_am335x_xbar_free(struct device *dev, void *route_data) |