[04/16] spi/imx: save the spi chip select in config struct, not the gpio to use

Commit Message

Uwe Kleine-König Sept. 17, 2010, 9:54 a.m. UTC

None

Patch

diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 60a52d1..23db984 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -56,7 +56,7 @@  struct spi_imx_config {
 	unsigned int speed_hz;
 	unsigned int bpw;
 	unsigned int mode;
-	int cs;
+	u8 cs;
 };
 
 enum spi_imx_devtype {
@@ -218,6 +218,7 @@  static int __maybe_unused spi_imx0_4_config(struct spi_imx_data *spi_imx,
 		struct spi_imx_config *config)
 {
 	unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_MASTER;
+	int cs = spi_imx->chipselect[config->cs];
 
 	reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz) <<
 		MX31_CSPICTRL_DR_SHIFT;
@@ -230,9 +231,8 @@  static int __maybe_unused spi_imx0_4_config(struct spi_imx_data *spi_imx,
 		reg |= MX31_CSPICTRL_POL;
 	if (config->mode & SPI_CS_HIGH)
 		reg |= MX31_CSPICTRL_SSPOL;
-	if (config->cs < 0) {
-		reg |= (config->cs + 32) << MX31_CSPICTRL_CS_SHIFT;
-	}
+	if (cs < 0)
+		reg |= (cs + 32) << MX31_CSPICTRL_CS_SHIFT;
 
 	writel(reg, spi_imx->base + MXC_CSPICTRL);
 
@@ -243,6 +243,7 @@  static int __maybe_unused spi_imx0_7_config(struct spi_imx_data *spi_imx,
 		struct spi_imx_config *config)
 {
 	unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_MASTER;
+	int cs = spi_imx->chipselect[config->cs];
 
 	reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz) <<
 		MX31_CSPICTRL_DR_SHIFT;
@@ -256,8 +257,8 @@  static int __maybe_unused spi_imx0_7_config(struct spi_imx_data *spi_imx,
 		reg |= MX31_CSPICTRL_POL;
 	if (config->mode & SPI_CS_HIGH)
 		reg |= MX31_CSPICTRL_SSPOL;
-	if (config->cs < 0)
-		reg |= (config->cs + 32) << MX35_CSPICTRL_CS_SHIFT;
+	if (cs < 0)
+		reg |= (cs + 32) << MX35_CSPICTRL_CS_SHIFT;
 
 	writel(reg, spi_imx->base + MXC_CSPICTRL);
 
@@ -314,6 +315,7 @@  static int __maybe_unused mx27_config(struct spi_imx_data *spi_imx,
 		struct spi_imx_config *config)
 {
 	unsigned int reg = MX27_CSPICTRL_ENABLE | MX27_CSPICTRL_MASTER;
+	int cs = spi_imx->chipselect[config->cs];
 
 	reg |= spi_imx_clkdiv_1(spi_imx->spi_clk, config->speed_hz) <<
 		MX27_CSPICTRL_DR_SHIFT;
@@ -325,8 +327,8 @@  static int __maybe_unused mx27_config(struct spi_imx_data *spi_imx,
 		reg |= MX27_CSPICTRL_POL;
 	if (config->mode & SPI_CS_HIGH)
 		reg |= MX27_CSPICTRL_SSPOL;
-	if (config->cs < 0)
-		reg |= (config->cs + 32) << MX27_CSPICTRL_CS_SHIFT;
+	if (cs < 0)
+		reg |= (cs + 32) << MX27_CSPICTRL_CS_SHIFT;
 
 	writel(reg, spi_imx->base + MXC_CSPICTRL);
 
@@ -510,7 +512,7 @@  static int spi_imx_setupxfer(struct spi_device *spi,
 	config.bpw = t ? t->bits_per_word : spi->bits_per_word;
 	config.speed_hz  = t ? t->speed_hz : spi->max_speed_hz;
 	config.mode = spi->mode;
-	config.cs = spi_imx->chipselect[spi->chip_select];
+	config.cs = spi->chip_select;
 
 	if (!config.speed_hz)
 		config.speed_hz = spi->max_speed_hz;