diff options
| author | Leilk Liu <leilk.liu@mediatek.com> | 2015-10-26 09:09:41 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-10-27 05:33:41 +0100 |
| commit | 79b5d3f24dcec547ea5db7d2e0b557a36f92b16b (patch) | |
| tree | ea920f9a432e76ec0f2961ccd1384d4165ed3ddd /drivers/spi/spi-mt65xx.c | |
| parent | spi: mediatek: Update document devicetree bindings to support multiple devices (diff) | |
| download | linux-79b5d3f24dcec547ea5db7d2e0b557a36f92b16b.tar.xz linux-79b5d3f24dcec547ea5db7d2e0b557a36f92b16b.zip | |
spi: mediatek: remove mtk_spi_config
mtk_spi_config() and mtk_spi_prepare_message() both initialize
spi register, so remove mtk_spi_config() and init all register
in mtk_spi_prepare_message().
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-mt65xx.c')
| -rw-r--r-- | drivers/spi/spi-mt65xx.c | 59 |
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index ecb6c58238c4..7bd84c8061c6 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -131,10 +131,34 @@ static void mtk_spi_reset(struct mtk_spi *mdata) writel(reg_val, mdata->base + SPI_CMD_REG); } -static void mtk_spi_config(struct mtk_spi *mdata, - struct mtk_chip_config *chip_config) +static int mtk_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) { + u16 cpha, cpol; u32 reg_val; + struct mtk_chip_config *chip_config; + struct spi_device *spi = msg->spi; + struct mtk_spi *mdata = spi_master_get_devdata(master); + + cpha = spi->mode & SPI_CPHA ? 1 : 0; + cpol = spi->mode & SPI_CPOL ? 1 : 0; + + chip_config = spi->controller_data; + if (!chip_config) { + chip_config = (void *)&mtk_default_chip_info; + spi->controller_data = chip_config; + } + + reg_val = readl(mdata->base + SPI_CMD_REG); + if (cpha) + reg_val |= SPI_CMD_CPHA; + else + reg_val &= ~SPI_CMD_CPHA; + if (cpol) + 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); @@ -171,37 +195,6 @@ static void mtk_spi_config(struct mtk_spi *mdata, /* pad select */ if (mdata->dev_comp->need_pad_sel) writel(mdata->pad_sel, mdata->base + SPI_PAD_SEL_REG); -} - -static int mtk_spi_prepare_message(struct spi_master *master, - struct spi_message *msg) -{ - u32 reg_val; - u8 cpha, cpol; - struct mtk_chip_config *chip_config; - struct spi_device *spi = msg->spi; - struct mtk_spi *mdata = spi_master_get_devdata(master); - - cpha = spi->mode & SPI_CPHA ? 1 : 0; - cpol = spi->mode & SPI_CPOL ? 1 : 0; - - reg_val = readl(mdata->base + SPI_CMD_REG); - if (cpha) - reg_val |= SPI_CMD_CPHA; - else - reg_val &= ~SPI_CMD_CPHA; - if (cpol) - reg_val |= SPI_CMD_CPOL; - else - reg_val &= ~SPI_CMD_CPOL; - writel(reg_val, mdata->base + SPI_CMD_REG); - - chip_config = spi->controller_data; - if (!chip_config) { - chip_config = (void *)&mtk_default_chip_info; - spi->controller_data = chip_config; - } - mtk_spi_config(mdata, chip_config); return 0; } |