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Groups > linux.kernel > #1273694
| From | Leilk Liu <leilk.liu@mediatek.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl() |
| Date | 2015-11-20 03:30 +0100 |
| Message-ID | <qwJCy-10e-17@gated-at.bofh.it> (permalink) |
| References | <qwJCx-10e-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
It's not need to re-read and re-write SPI_CMD_REG, so remove it. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> --- drivers/spi/spi-mt65xx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index 7840067..6c1a96e 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -154,9 +154,6 @@ static int mtk_spi_prepare_message(struct spi_master *master, reg_val |= SPI_CMD_CPOL; else reg_val &= ~SPI_CMD_CPOL; - writel(reg_val, mdata->base + SPI_CMD_REG); - - reg_val = readl(mdata->base + SPI_CMD_REG); /* set the mlsbx and mlsbtx */ if (chip_config->tx_mlsb) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 1/4] spi: mediatek: update document devicetree bindings to fix syntax error Leilk Liu <leilk.liu@mediatek.com> - 2015-11-20 03:30 +0100
[PATCH 2/4] spi: mediatek: remove unrequired description Leilk Liu <leilk.liu@mediatek.com> - 2015-11-20 03:30 +0100
Re: [PATCH 2/4] spi: mediatek: remove unrequired description Rob Herring <robh@kernel.org> - 2015-11-20 15:30 +0100
[PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl() Leilk Liu <leilk.liu@mediatek.com> - 2015-11-20 03:30 +0100
Re: [PATCH 3/4] spi: mediatek: remove needless pair of writel()/readl() Matthias Brugger <matthias.bgg@gmail.com> - 2015-11-20 18:00 +0100
Re: [PATCH 1/4] spi: mediatek: update document devicetree bindings to fix syntax error Rob Herring <robh@kernel.org> - 2015-11-20 15:20 +0100
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