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| author | Arnd Bergmann <arnd@arndb.de> | 2015-01-14 00:17:03 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-01-18 17:31:36 +0300 |
| commit | 4d76bbed2d8d9f7bf8bca31e64ef977e015a86fa (patch) | |
| tree | d329aa739e52cdbcfbb350557632635f3d2647f6 /drivers/dma/coh901318.c | |
| parent | 848e10bb521eca333f4f912cf70efbd5b0f73c32 (diff) | |
| download | linux-4d76bbed2d8d9f7bf8bca31e64ef977e015a86fa.tar.xz | |
dmaengine: coh901318: fix function return types build warnings
A recent patch that removed coh901318_control() replaced it
with a number of pointers to existing functions, but those
unfortunately have the wrong return type and need to be
changed to return an 'int' with an error value rather than
a 'void' to avoid these build warnings:
drivers/dma/coh901318.c:2697:32: warning: assignment from incompatible pointer type
base->dma_slave.device_config = coh901318_dma_set_runtimeconfig;
^
drivers/dma/coh901318.c:2698:31: warning: assignment from incompatible pointer type
base->dma_slave.device_pause = coh901318_pause;
^
drivers/dma/coh901318.c:2699:32: warning: assignment from incompatible pointer type
base->dma_slave.device_resume = coh901318_resume
The coh901318_base_init function has the correct return type
already, but needs to be marked 'static' to avoid a sparse
warning about a missing declaration.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 6782af118b6c ("dmaengine: coh901318: Split device_control")
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/coh901318.c')
| -rw-r--r-- | drivers/dma/coh901318.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index 418e4e4fb7ba..fd22dd36985f 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -1690,7 +1690,7 @@ static u32 coh901318_get_bytes_left(struct dma_chan *chan) * Pauses a transfer without losing data. Enables power save. * Use this function in conjunction with coh901318_resume. */ -static void coh901318_pause(struct dma_chan *chan) +static int coh901318_pause(struct dma_chan *chan) { u32 val; unsigned long flags; @@ -1730,12 +1730,13 @@ static void coh901318_pause(struct dma_chan *chan) enable_powersave(cohc); spin_unlock_irqrestore(&cohc->lock, flags); + return 0; } /* Resumes a transfer that has been stopped via 300_dma_stop(..). Power save is handled. */ -static void coh901318_resume(struct dma_chan *chan) +static int coh901318_resume(struct dma_chan *chan) { u32 val; unsigned long flags; @@ -1760,6 +1761,7 @@ static void coh901318_resume(struct dma_chan *chan) } spin_unlock_irqrestore(&cohc->lock, flags); + return 0; } bool coh901318_filter_id(struct dma_chan *chan, void *chan_id) @@ -2512,8 +2514,8 @@ static const struct burst_table burst_sizes[] = { }, }; -static void coh901318_dma_set_runtimeconfig(struct dma_chan *chan, - struct dma_slave_config *config) +static int coh901318_dma_set_runtimeconfig(struct dma_chan *chan, + struct dma_slave_config *config) { struct coh901318_chan *cohc = to_coh901318_chan(chan); dma_addr_t addr; @@ -2533,7 +2535,7 @@ static void coh901318_dma_set_runtimeconfig(struct dma_chan *chan, maxburst = config->dst_maxburst; } else { dev_err(COHC_2_DEV(cohc), "illegal channel mode\n"); - return; + return -EINVAL; } dev_dbg(COHC_2_DEV(cohc), "configure channel for %d byte transfers\n", @@ -2579,7 +2581,7 @@ static void coh901318_dma_set_runtimeconfig(struct dma_chan *chan, default: dev_err(COHC_2_DEV(cohc), "bad runtimeconfig: alien address width\n"); - return; + return -EINVAL; } ctrl |= burst_sizes[i].reg; @@ -2589,10 +2591,12 @@ static void coh901318_dma_set_runtimeconfig(struct dma_chan *chan, cohc->addr = addr; cohc->ctrl = ctrl; + + return 0; } -void coh901318_base_init(struct dma_device *dma, const int *pick_chans, - struct coh901318_base *base) +static void coh901318_base_init(struct dma_device *dma, const int *pick_chans, + struct coh901318_base *base) { int chans_i; int i = 0; |