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spi/imx: do not make copy of spi_imx_devtype_data 

spi_imx_devtype_data has already been driver private data.  There is
really no need to make a copy in spi_imx_data.  Instead, a reference
pointer works perfectly fine.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Shawn Guo 2011-07-10 01:16:35 +08:00 committed by Grant Likely
parent 40bfff85ff
commit edd501bbf1
1 changed files with 12 additions and 12 deletions
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24
drivers/spi/spi-imx.c
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@ -96,7 +96,7 @@ struct spi_imx_data {
const void *tx_buf;
unsigned int txfifo; /* number of words pushed in tx FIFO */
struct spi_imx_devtype_data devtype_data;
struct spi_imx_devtype_data *devtype_data;
};
#define MXC_SPI_BUF_RX(type) \
@ -539,7 +539,7 @@ static void __maybe_unused mx1_reset(struct spi_imx_data *spi_imx)
* These version numbers are taken from the Freescale driver. Unfortunately it
* doesn't support i.MX1, so this entry doesn't match the scheme. :-(
*/
static struct spi_imx_devtype_data spi_imx_devtype_data[] __devinitdata = {
static struct spi_imx_devtype_data spi_imx_devtype_data[] = {
#ifdef CONFIG_SPI_IMX_VER_IMX1
[SPI_IMX_VER_IMX1] = {
.intctrl = mx1_intctrl,
@ -607,21 +607,21 @@ static void spi_imx_chipselect(struct spi_device *spi, int is_active)
static void spi_imx_push(struct spi_imx_data *spi_imx)
{
while (spi_imx->txfifo < spi_imx->devtype_data.fifosize) {
while (spi_imx->txfifo < spi_imx->devtype_data->fifosize) {
if (!spi_imx->count)
break;
spi_imx->tx(spi_imx);
spi_imx->txfifo++;
}
spi_imx->devtype_data.trigger(spi_imx);
spi_imx->devtype_data->trigger(spi_imx);
}
static irqreturn_t spi_imx_isr(int irq, void *dev_id)
{
struct spi_imx_data *spi_imx = dev_id;
while (spi_imx->devtype_data.rx_available(spi_imx)) {
while (spi_imx->devtype_data->rx_available(spi_imx)) {
spi_imx->rx(spi_imx);
spi_imx->txfifo--;
}
@ -635,12 +635,12 @@ static irqreturn_t spi_imx_isr(int irq, void *dev_id)
/* No data left to push, but still waiting for rx data,
* enable receive data available interrupt.
*/
spi_imx->devtype_data.intctrl(
spi_imx->devtype_data->intctrl(
spi_imx, MXC_INT_RR);
return IRQ_HANDLED;
}
spi_imx->devtype_data.intctrl(spi_imx, 0);
spi_imx->devtype_data->intctrl(spi_imx, 0);
complete(&spi_imx->xfer_done);
return IRQ_HANDLED;
@ -677,7 +677,7 @@ static int spi_imx_setupxfer(struct spi_device *spi,
} else
BUG();
spi_imx->devtype_data.config(spi_imx, &config);
spi_imx->devtype_data->config(spi_imx, &config);
return 0;
}
@ -696,7 +696,7 @@ static int spi_imx_transfer(struct spi_device *spi,
spi_imx_push(spi_imx);
spi_imx->devtype_data.intctrl(spi_imx, MXC_INT_TE);
spi_imx->devtype_data->intctrl(spi_imx, MXC_INT_TE);
wait_for_completion(&spi_imx->xfer_done);
@ -811,7 +811,7 @@ static int __devinit spi_imx_probe(struct platform_device *pdev)
init_completion(&spi_imx->xfer_done);
spi_imx->devtype_data =
spi_imx_devtype_data[pdev->id_entry->driver_data];
&spi_imx_devtype_data[pdev->id_entry->driver_data];
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@ -854,9 +854,9 @@ static int __devinit spi_imx_probe(struct platform_device *pdev)
clk_enable(spi_imx->clk);
spi_imx->spi_clk = clk_get_rate(spi_imx->clk);
spi_imx->devtype_data.reset(spi_imx);
spi_imx->devtype_data->reset(spi_imx);
spi_imx->devtype_data.intctrl(spi_imx, 0);
spi_imx->devtype_data->intctrl(spi_imx, 0);
ret = spi_bitbang_start(&spi_imx->bitbang);
if (ret) {