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dmaengine: tegra-apb: mark PM functions as __maybe_unused

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When CONFIG_PM is disabled, gcc warning this:

drivers/dma/tegra20-apb-dma.c:1587:12: warning: 'tegra_dma_runtime_resume' defined but not used [-Wunused-function]
drivers/dma/tegra20-apb-dma.c:1578:12: warning: 'tegra_dma_runtime_suspend' defined but not used [-Wunused-function]

Make it as __maybe_unused to fix the warnings,
also remove unneeded function declarations.

Fixes: ec8a1586780c ("dma: tegra: add dmaengine based dma driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200320071337.59756-1-yuehaibing@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
YueHaibing 2020-03-20 15:13:37 +08:00 committed by Vinod Koul
parent 1986f03b2a
commit a48d44c800
1 changed files with 2 additions and 4 deletions
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6
drivers/dma/tegra20-apb-dma.c
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@ -263,8 +263,6 @@ static inline struct device *tdc2dev(struct tegra_dma_channel *tdc)
}
static dma_cookie_t tegra_dma_tx_submit(struct dma_async_tx_descriptor *tx);
static int tegra_dma_runtime_suspend(struct device *dev);
static int tegra_dma_runtime_resume(struct device *dev);
/* Get DMA desc from free list, if not there then allocate it. */
static struct tegra_dma_desc *tegra_dma_desc_get(struct tegra_dma_channel *tdc)
@ -1580,7 +1578,7 @@ static int tegra_dma_remove(struct platform_device *pdev)
return 0;
}
static int tegra_dma_runtime_suspend(struct device *dev)
static int __maybe_unused tegra_dma_runtime_suspend(struct device *dev)
{
struct tegra_dma *tdma = dev_get_drvdata(dev);
@ -1589,7 +1587,7 @@ static int tegra_dma_runtime_suspend(struct device *dev)
return 0;
}
static int tegra_dma_runtime_resume(struct device *dev)
static int __maybe_unused tegra_dma_runtime_resume(struct device *dev)
{
struct tegra_dma *tdma = dev_get_drvdata(dev);