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spi: mediatek: remove redundant clock in prepare_hardware/unprepare_hardware 

clock in prepare_hardware/unprepare_hardware is redundant
with pm_runtime, so remove them.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Leilk Liu 2015-08-19 11:37:57 +08:00 committed by Mark Brown
parent 39ba928f8b
commit c5e5cd28d7
1 changed files with 0 additions and 17 deletions
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17
drivers/spi/spi-mt65xx.c
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@ -186,13 +186,6 @@ static int mtk_spi_prepare_hardware(struct spi_master *master)
struct spi_transfer *trans;
struct mtk_spi *mdata = spi_master_get_devdata(master);
struct spi_message *msg = master->cur_msg;
int ret;
ret = clk_prepare_enable(mdata->spi_clk);
if (ret < 0) {
dev_err(&master->dev, "failed to enable clock (%d)\n", ret);
return ret;
}
trans = list_first_entry(&msg->transfers, struct spi_transfer,
transfer_list);
@ -201,15 +194,6 @@ static int mtk_spi_prepare_hardware(struct spi_master *master)
mtk_spi_reset(mdata);
}
return ret;
}
static int mtk_spi_unprepare_hardware(struct spi_master *master)
{
struct mtk_spi *mdata = spi_master_get_devdata(master);
clk_disable_unprepare(mdata->spi_clk);
return 0;
}
@ -541,7 +525,6 @@ static int mtk_spi_probe(struct platform_device *pdev)
master->set_cs = mtk_spi_set_cs;
master->prepare_transfer_hardware = mtk_spi_prepare_hardware;
master->unprepare_transfer_hardware = mtk_spi_unprepare_hardware;
master->prepare_message = mtk_spi_prepare_message;
master->transfer_one = mtk_spi_transfer_one;
master->can_dma = mtk_spi_can_dma;