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[v3,4/4] spi: mediatek: replace *_time name

Message ID 1440387918-22191-5-git-send-email-leilk.liu@mediatek.com (mailing list archive)
State Accepted
Commit 2ce0acf5673e7ee82506e69109876e037e4a64be
Headers show

Commit Message

Leilk Liu Aug. 24, 2015, 3:45 a.m. UTC 
This patch replaces *_time name in mtk_spi_prepare_transfer().

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
---
 drivers/spi/spi-mt65xx.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)
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Patch

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index e14f583..eaadc7e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -238,8 +238,7 @@  static void mtk_spi_set_cs(struct spi_device *spi, bool enable)
 static void mtk_spi_prepare_transfer(struct spi_master *master,
 				     struct spi_transfer *xfer)
 {
-	u32 spi_clk_hz, div, high_time, low_time, holdtime,
-	    setuptime, cs_idletime, reg_val = 0;
+	u32 spi_clk_hz, div, sck_time, cs_time, reg_val = 0;
 	struct mtk_spi *mdata = spi_master_get_devdata(master);
 
 	spi_clk_hz = clk_get_rate(mdata->spi_clk);
@@ -248,21 +247,18 @@  static void mtk_spi_prepare_transfer(struct spi_master *master,
 	else
 		div = 1;
 
-	high_time = (div + 1) / 2;
-	low_time = (div + 1) / 2;
-	holdtime = (div + 1) / 2 * 2;
-	setuptime = (div + 1) / 2 * 2;
-	cs_idletime = (div + 1) / 2 * 2;
+	sck_time = (div + 1) / 2;
+	cs_time = sck_time * 2;
 
-	reg_val |= (((high_time - 1) & 0xff) << SPI_CFG0_SCK_HIGH_OFFSET);
-	reg_val |= (((low_time - 1) & 0xff) << SPI_CFG0_SCK_LOW_OFFSET);
-	reg_val |= (((holdtime - 1) & 0xff) << SPI_CFG0_CS_HOLD_OFFSET);
-	reg_val |= (((setuptime - 1) & 0xff) << SPI_CFG0_CS_SETUP_OFFSET);
+	reg_val |= (((sck_time - 1) & 0xff) << SPI_CFG0_SCK_HIGH_OFFSET);
+	reg_val |= (((sck_time - 1) & 0xff) << SPI_CFG0_SCK_LOW_OFFSET);
+	reg_val |= (((cs_time - 1) & 0xff) << SPI_CFG0_CS_HOLD_OFFSET);
+	reg_val |= (((cs_time - 1) & 0xff) << SPI_CFG0_CS_SETUP_OFFSET);
 	writel(reg_val, mdata->base + SPI_CFG0_REG);
 
 	reg_val = readl(mdata->base + SPI_CFG1_REG);
 	reg_val &= ~SPI_CFG1_CS_IDLE_MASK;
-	reg_val |= (((cs_idletime - 1) & 0xff) << SPI_CFG1_CS_IDLE_OFFSET);
+	reg_val |= (((cs_time - 1) & 0xff) << SPI_CFG1_CS_IDLE_OFFSET);
 	writel(reg_val, mdata->base + SPI_CFG1_REG);
 }