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Message-Id: <20170602053804.3238-4-s.hauer@pengutronix.de>
Date: Fri, 2 Jun 2017 07:38:01 +0200
From: Sascha Hauer <s.hauer@...gutronix.de>
To: linux-spi@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>, kernel@...gutronix.de,
linux-kernel@...r.kernel.org, festevam@...il.com,
Jiada Wang <jiada_wang@...tor.com>,
Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 3/6] spi: imx: put struct spi_imx_config members into driver private struct
struct spi_imx_config used to hold data specific to the current
transfer. However, other data is in the drivers private data struct.
Let's drop struct spi_imx_config and put the variables into the
drivers private data struct aswell.
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
drivers/spi/spi-imx.c | 50 +++++++++++++++++++++++---------------------------
1 file changed, 23 insertions(+), 27 deletions(-)
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index e3bc3d51a2d6..3fa5ccfb45a1 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -56,10 +56,6 @@
/* The maximum bytes that a sdma BD can transfer.*/
#define MAX_SDMA_BD_BYTES (1 << 15)
-struct spi_imx_config {
- unsigned int speed_hz;
- unsigned int bpw;
-};
enum spi_imx_devtype {
IMX1_CSPI,
@@ -74,7 +70,7 @@ struct spi_imx_data;
struct spi_imx_devtype_data {
void (*intctrl)(struct spi_imx_data *, int);
- int (*config)(struct spi_device *, struct spi_imx_config *);
+ int (*config)(struct spi_device *);
void (*trigger)(struct spi_imx_data *);
int (*rx_available)(struct spi_imx_data *);
void (*reset)(struct spi_imx_data *);
@@ -94,6 +90,8 @@ struct spi_imx_data {
unsigned long spi_clk;
unsigned int spi_bus_clk;
+ unsigned int speed_hz;
+ unsigned int bits_per_word;
unsigned int bytes_per_word;
unsigned int spi_drctl;
@@ -335,12 +333,11 @@ static void mx51_ecspi_trigger(struct spi_imx_data *spi_imx)
writel(reg, spi_imx->base + MX51_ECSPI_CTRL);
}
-static int mx51_ecspi_config(struct spi_device *spi,
- struct spi_imx_config *config)
+static int mx51_ecspi_config(struct spi_device *spi)
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
u32 ctrl = MX51_ECSPI_CTRL_ENABLE;
- u32 clk = config->speed_hz, delay, reg;
+ u32 clk = spi_imx->speed_hz, delay, reg;
u32 cfg = readl(spi_imx->base + MX51_ECSPI_CONFIG);
/*
@@ -359,13 +356,13 @@ static int mx51_ecspi_config(struct spi_device *spi,
ctrl |= MX51_ECSPI_CTRL_DRCTL(spi_imx->spi_drctl);
/* set clock speed */
- ctrl |= mx51_ecspi_clkdiv(spi_imx, config->speed_hz, &clk);
+ ctrl |= mx51_ecspi_clkdiv(spi_imx, spi_imx->speed_hz, &clk);
spi_imx->spi_bus_clk = clk;
/* set chip select to use */
ctrl |= MX51_ECSPI_CTRL_CS(spi->chip_select);
- ctrl |= (config->bpw - 1) << MX51_ECSPI_CTRL_BL_OFFSET;
+ ctrl |= (spi_imx->bits_per_word - 1) << MX51_ECSPI_CTRL_BL_OFFSET;
cfg |= MX51_ECSPI_CONFIG_SBBCTRL(spi->chip_select);
@@ -496,21 +493,21 @@ static void mx31_trigger(struct spi_imx_data *spi_imx)
writel(reg, spi_imx->base + MXC_CSPICTRL);
}
-static int mx31_config(struct spi_device *spi, struct spi_imx_config *config)
+static int mx31_config(struct spi_device *spi)
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
unsigned int reg = MX31_CSPICTRL_ENABLE | MX31_CSPICTRL_MASTER;
unsigned int clk;
- reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz, &clk) <<
+ reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, spi_imx->speed_hz, &clk) <<
MX31_CSPICTRL_DR_SHIFT;
spi_imx->spi_bus_clk = clk;
if (is_imx35_cspi(spi_imx)) {
- reg |= (config->bpw - 1) << MX35_CSPICTRL_BL_SHIFT;
+ reg |= (spi_imx->bits_per_word - 1) << MX35_CSPICTRL_BL_SHIFT;
reg |= MX31_CSPICTRL_SSCTL;
} else {
- reg |= (config->bpw - 1) << MX31_CSPICTRL_BC_SHIFT;
+ reg |= (spi_imx->bits_per_word - 1) << MX31_CSPICTRL_BC_SHIFT;
}
if (spi->mode & SPI_CPHA)
@@ -592,18 +589,18 @@ static void mx21_trigger(struct spi_imx_data *spi_imx)
writel(reg, spi_imx->base + MXC_CSPICTRL);
}
-static int mx21_config(struct spi_device *spi, struct spi_imx_config *config)
+static int mx21_config(struct spi_device *spi)
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
unsigned int reg = MX21_CSPICTRL_ENABLE | MX21_CSPICTRL_MASTER;
unsigned int max = is_imx27_cspi(spi_imx) ? 16 : 18;
unsigned int clk;
- reg |= spi_imx_clkdiv_1(spi_imx->spi_clk, config->speed_hz, max, &clk)
+ reg |= spi_imx_clkdiv_1(spi_imx->spi_clk, spi_imx->speed_hz, max, &clk)
<< MX21_CSPICTRL_DR_SHIFT;
spi_imx->spi_bus_clk = clk;
- reg |= config->bpw - 1;
+ reg |= spi_imx->bits_per_word - 1;
if (spi->mode & SPI_CPHA)
reg |= MX21_CSPICTRL_PHA;
@@ -661,17 +658,17 @@ static void mx1_trigger(struct spi_imx_data *spi_imx)
writel(reg, spi_imx->base + MXC_CSPICTRL);
}
-static int mx1_config(struct spi_device *spi, struct spi_imx_config *config)
+static int mx1_config(struct spi_device *spi)
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
unsigned int reg = MX1_CSPICTRL_ENABLE | MX1_CSPICTRL_MASTER;
unsigned int clk;
- reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, config->speed_hz, &clk) <<
+ reg |= spi_imx_clkdiv_2(spi_imx->spi_clk, spi_imx->speed_hz, &clk) <<
MX1_CSPICTRL_DR_SHIFT;
spi_imx->spi_bus_clk = clk;
- reg |= config->bpw - 1;
+ reg |= spi_imx->bits_per_word - 1;
if (spi->mode & SPI_CPHA)
reg |= MX1_CSPICTRL_PHA;
@@ -887,20 +884,19 @@ static int spi_imx_setupxfer(struct spi_device *spi,
struct spi_transfer *t)
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
- struct spi_imx_config config;
int ret;
if (!t)
return 0;
- config.bpw = t->bits_per_word;
- config.speed_hz = t->speed_hz;
+ spi_imx->bits_per_word = t->bits_per_word;
+ spi_imx->speed_hz = t->speed_hz;
/* Initialize the functions for transfer */
- if (config.bpw <= 8) {
+ if (spi_imx->bits_per_word <= 8) {
spi_imx->rx = spi_imx_buf_rx_u8;
spi_imx->tx = spi_imx_buf_tx_u8;
- } else if (config.bpw <= 16) {
+ } else if (spi_imx->bits_per_word <= 16) {
spi_imx->rx = spi_imx_buf_rx_u16;
spi_imx->tx = spi_imx_buf_tx_u16;
} else {
@@ -915,12 +911,12 @@ static int spi_imx_setupxfer(struct spi_device *spi,
if (spi_imx->usedma) {
ret = spi_imx_dma_configure(spi->master,
- spi_imx_bytes_per_word(config.bpw));
+ spi_imx_bytes_per_word(spi_imx->bits_per_word));
if (ret)
return ret;
}
- spi_imx->devtype_data->config(spi, &config);
+ spi_imx->devtype_data->config(spi);
return 0;
}
--
2.11.0
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