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spi: ep93xx: switch to use modern name

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Change legacy name master to modern name host or controller.

No functional changed.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20230807124105.3429709-4-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yang Yingliang 2023-08-07 20:40:48 +08:00 committed by Mark Brown
parent 0c35cc597b
commit 24e9b75c0c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 87 additions and 87 deletions
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174
drivers/spi/spi-ep93xx.c
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@ -104,15 +104,15 @@ struct ep93xx_spi {
/** /**
* ep93xx_spi_calc_divisors() - calculates SPI clock divisors * ep93xx_spi_calc_divisors() - calculates SPI clock divisors
* @master: SPI master * @host: SPI host
* @rate: desired SPI output clock rate * @rate: desired SPI output clock rate
* @div_cpsr: pointer to return the cpsr (pre-scaler) divider * @div_cpsr: pointer to return the cpsr (pre-scaler) divider
* @div_scr: pointer to return the scr divider * @div_scr: pointer to return the scr divider
*/ */
static int ep93xx_spi_calc_divisors(struct spi_master *master, static int ep93xx_spi_calc_divisors(struct spi_controller *host,
u32 rate, u8 *div_cpsr, u8 *div_scr) u32 rate, u8 *div_cpsr, u8 *div_scr)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
unsigned long spi_clk_rate = clk_get_rate(espi->clk); unsigned long spi_clk_rate = clk_get_rate(espi->clk);
int cpsr, scr; int cpsr, scr;
@ -120,7 +120,7 @@ static int ep93xx_spi_calc_divisors(struct spi_master *master,
* Make sure that max value is between values supported by the * Make sure that max value is between values supported by the
* controller. * controller.
*/ */
rate = clamp(rate, master->min_speed_hz, master->max_speed_hz); rate = clamp(rate, host->min_speed_hz, host->max_speed_hz);
/* /*
* Calculate divisors so that we can get speed according the * Calculate divisors so that we can get speed according the
@ -143,18 +143,18 @@ static int ep93xx_spi_calc_divisors(struct spi_master *master,
return -EINVAL; return -EINVAL;
} }
static int ep93xx_spi_chip_setup(struct spi_master *master, static int ep93xx_spi_chip_setup(struct spi_controller *host,
struct spi_device *spi, struct spi_device *spi,
struct spi_transfer *xfer) struct spi_transfer *xfer)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
u8 dss = bits_per_word_to_dss(xfer->bits_per_word); u8 dss = bits_per_word_to_dss(xfer->bits_per_word);
u8 div_cpsr = 0; u8 div_cpsr = 0;
u8 div_scr = 0; u8 div_scr = 0;
u16 cr0; u16 cr0;
int err; int err;
err = ep93xx_spi_calc_divisors(master, xfer->speed_hz, err = ep93xx_spi_calc_divisors(host, xfer->speed_hz,
&div_cpsr, &div_scr); &div_cpsr, &div_scr);
if (err) if (err)
return err; return err;
@ -166,9 +166,9 @@ static int ep93xx_spi_chip_setup(struct spi_master *master,
cr0 |= SSPCR0_SPH; cr0 |= SSPCR0_SPH;
cr0 |= dss; cr0 |= dss;
dev_dbg(&master->dev, "setup: mode %d, cpsr %d, scr %d, dss %d\n", dev_dbg(&host->dev, "setup: mode %d, cpsr %d, scr %d, dss %d\n",
spi->mode, div_cpsr, div_scr, dss); spi->mode, div_cpsr, div_scr, dss);
dev_dbg(&master->dev, "setup: cr0 %#x\n", cr0); dev_dbg(&host->dev, "setup: cr0 %#x\n", cr0);
writel(div_cpsr, espi->mmio + SSPCPSR); writel(div_cpsr, espi->mmio + SSPCPSR);
writel(cr0, espi->mmio + SSPCR0); writel(cr0, espi->mmio + SSPCR0);
@ -176,10 +176,10 @@ static int ep93xx_spi_chip_setup(struct spi_master *master,
return 0; return 0;
} }
static void ep93xx_do_write(struct spi_master *master) static void ep93xx_do_write(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct spi_transfer *xfer = master->cur_msg->state; struct spi_transfer *xfer = host->cur_msg->state;
u32 val = 0; u32 val = 0;
if (xfer->bits_per_word > 8) { if (xfer->bits_per_word > 8) {
@ -194,10 +194,10 @@ static void ep93xx_do_write(struct spi_master *master)
writel(val, espi->mmio + SSPDR); writel(val, espi->mmio + SSPDR);
} }
static void ep93xx_do_read(struct spi_master *master) static void ep93xx_do_read(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct spi_transfer *xfer = master->cur_msg->state; struct spi_transfer *xfer = host->cur_msg->state;
u32 val; u32 val;
val = readl(espi->mmio + SSPDR); val = readl(espi->mmio + SSPDR);
@ -214,7 +214,7 @@ static void ep93xx_do_read(struct spi_master *master)
/** /**
* ep93xx_spi_read_write() - perform next RX/TX transfer * ep93xx_spi_read_write() - perform next RX/TX transfer
* @master: SPI master * @host: SPI host
* *
* This function transfers next bytes (or half-words) to/from RX/TX FIFOs. If * This function transfers next bytes (or half-words) to/from RX/TX FIFOs. If
* called several times, the whole transfer will be completed. Returns * called several times, the whole transfer will be completed. Returns
@ -223,20 +223,20 @@ static void ep93xx_do_read(struct spi_master *master)
* When this function is finished, RX FIFO should be empty and TX FIFO should be * When this function is finished, RX FIFO should be empty and TX FIFO should be
* full. * full.
*/ */
static int ep93xx_spi_read_write(struct spi_master *master) static int ep93xx_spi_read_write(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct spi_transfer *xfer = master->cur_msg->state; struct spi_transfer *xfer = host->cur_msg->state;
/* read as long as RX FIFO has frames in it */ /* read as long as RX FIFO has frames in it */
while ((readl(espi->mmio + SSPSR) & SSPSR_RNE)) { while ((readl(espi->mmio + SSPSR) & SSPSR_RNE)) {
ep93xx_do_read(master); ep93xx_do_read(host);
espi->fifo_level--; espi->fifo_level--;
} }
/* write as long as TX FIFO has room */ /* write as long as TX FIFO has room */
while (espi->fifo_level < SPI_FIFO_SIZE && espi->tx < xfer->len) { while (espi->fifo_level < SPI_FIFO_SIZE && espi->tx < xfer->len) {
ep93xx_do_write(master); ep93xx_do_write(host);
espi->fifo_level++; espi->fifo_level++;
} }
@ -261,7 +261,7 @@ ep93xx_dma_data_to_trans_dir(enum dma_data_direction dir)
/** /**
* ep93xx_spi_dma_prepare() - prepares a DMA transfer * ep93xx_spi_dma_prepare() - prepares a DMA transfer
* @master: SPI master * @host: SPI host
* @dir: DMA transfer direction * @dir: DMA transfer direction
* *
* Function configures the DMA, maps the buffer and prepares the DMA * Function configures the DMA, maps the buffer and prepares the DMA
@ -269,11 +269,11 @@ ep93xx_dma_data_to_trans_dir(enum dma_data_direction dir)
* in case of failure. * in case of failure.
*/ */
static struct dma_async_tx_descriptor * static struct dma_async_tx_descriptor *
ep93xx_spi_dma_prepare(struct spi_master *master, ep93xx_spi_dma_prepare(struct spi_controller *host,
enum dma_data_direction dir) enum dma_data_direction dir)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct spi_transfer *xfer = master->cur_msg->state; struct spi_transfer *xfer = host->cur_msg->state;
struct dma_async_tx_descriptor *txd; struct dma_async_tx_descriptor *txd;
enum dma_slave_buswidth buswidth; enum dma_slave_buswidth buswidth;
struct dma_slave_config conf; struct dma_slave_config conf;
@ -348,7 +348,7 @@ ep93xx_spi_dma_prepare(struct spi_master *master,
} }
if (WARN_ON(len)) { if (WARN_ON(len)) {
dev_warn(&master->dev, "len = %zu expected 0!\n", len); dev_warn(&host->dev, "len = %zu expected 0!\n", len);
return ERR_PTR(-EINVAL); return ERR_PTR(-EINVAL);
} }
@ -367,16 +367,16 @@ ep93xx_spi_dma_prepare(struct spi_master *master,
/** /**
* ep93xx_spi_dma_finish() - finishes with a DMA transfer * ep93xx_spi_dma_finish() - finishes with a DMA transfer
* @master: SPI master * @host: SPI host
* @dir: DMA transfer direction * @dir: DMA transfer direction
* *
* Function finishes with the DMA transfer. After this, the DMA buffer is * Function finishes with the DMA transfer. After this, the DMA buffer is
* unmapped. * unmapped.
*/ */
static void ep93xx_spi_dma_finish(struct spi_master *master, static void ep93xx_spi_dma_finish(struct spi_controller *host,
enum dma_data_direction dir) enum dma_data_direction dir)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct dma_chan *chan; struct dma_chan *chan;
struct sg_table *sgt; struct sg_table *sgt;
@ -393,35 +393,35 @@ static void ep93xx_spi_dma_finish(struct spi_master *master,
static void ep93xx_spi_dma_callback(void *callback_param) static void ep93xx_spi_dma_callback(void *callback_param)
{ {
struct spi_master *master = callback_param; struct spi_controller *host = callback_param;
ep93xx_spi_dma_finish(master, DMA_TO_DEVICE); ep93xx_spi_dma_finish(host, DMA_TO_DEVICE);
ep93xx_spi_dma_finish(master, DMA_FROM_DEVICE); ep93xx_spi_dma_finish(host, DMA_FROM_DEVICE);
spi_finalize_current_transfer(master); spi_finalize_current_transfer(host);
} }
static int ep93xx_spi_dma_transfer(struct spi_master *master) static int ep93xx_spi_dma_transfer(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
struct dma_async_tx_descriptor *rxd, *txd; struct dma_async_tx_descriptor *rxd, *txd;
rxd = ep93xx_spi_dma_prepare(master, DMA_FROM_DEVICE); rxd = ep93xx_spi_dma_prepare(host, DMA_FROM_DEVICE);
if (IS_ERR(rxd)) { if (IS_ERR(rxd)) {
dev_err(&master->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd)); dev_err(&host->dev, "DMA RX failed: %ld\n", PTR_ERR(rxd));
return PTR_ERR(rxd); return PTR_ERR(rxd);
} }
txd = ep93xx_spi_dma_prepare(master, DMA_TO_DEVICE); txd = ep93xx_spi_dma_prepare(host, DMA_TO_DEVICE);
if (IS_ERR(txd)) { if (IS_ERR(txd)) {
ep93xx_spi_dma_finish(master, DMA_FROM_DEVICE); ep93xx_spi_dma_finish(host, DMA_FROM_DEVICE);
dev_err(&master->dev, "DMA TX failed: %ld\n", PTR_ERR(txd)); dev_err(&host->dev, "DMA TX failed: %ld\n", PTR_ERR(txd));
return PTR_ERR(txd); return PTR_ERR(txd);
} }
/* We are ready when RX is done */ /* We are ready when RX is done */
rxd->callback = ep93xx_spi_dma_callback; rxd->callback = ep93xx_spi_dma_callback;
rxd->callback_param = master; rxd->callback_param = host;
/* Now submit both descriptors and start DMA */ /* Now submit both descriptors and start DMA */
dmaengine_submit(rxd); dmaengine_submit(rxd);
@ -436,8 +436,8 @@ static int ep93xx_spi_dma_transfer(struct spi_master *master)
static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id) static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
{ {
struct spi_master *master = dev_id; struct spi_controller *host = dev_id;
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
u32 val; u32 val;
/* /*
@ -447,15 +447,15 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
if (readl(espi->mmio + SSPIIR) & SSPIIR_RORIS) { if (readl(espi->mmio + SSPIIR) & SSPIIR_RORIS) {
/* clear the overrun interrupt */ /* clear the overrun interrupt */
writel(0, espi->mmio + SSPICR); writel(0, espi->mmio + SSPICR);
dev_warn(&master->dev, dev_warn(&host->dev,
"receive overrun, aborting the message\n"); "receive overrun, aborting the message\n");
master->cur_msg->status = -EIO; host->cur_msg->status = -EIO;
} else { } else {
/* /*
* Interrupt is either RX (RIS) or TX (TIS). For both cases we * Interrupt is either RX (RIS) or TX (TIS). For both cases we
* simply execute next data transfer. * simply execute next data transfer.
*/ */
if (ep93xx_spi_read_write(master)) { if (ep93xx_spi_read_write(host)) {
/* /*
* In normal case, there still is some processing left * In normal case, there still is some processing left
* for current transfer. Let's wait for the next * for current transfer. Let's wait for the next
@ -474,26 +474,26 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
writel(val, espi->mmio + SSPCR1); writel(val, espi->mmio + SSPCR1);
spi_finalize_current_transfer(master); spi_finalize_current_transfer(host);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
static int ep93xx_spi_transfer_one(struct spi_master *master, static int ep93xx_spi_transfer_one(struct spi_controller *host,
struct spi_device *spi, struct spi_device *spi,
struct spi_transfer *xfer) struct spi_transfer *xfer)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
u32 val; u32 val;
int ret; int ret;
ret = ep93xx_spi_chip_setup(master, spi, xfer); ret = ep93xx_spi_chip_setup(host, spi, xfer);
if (ret) { if (ret) {
dev_err(&master->dev, "failed to setup chip for transfer\n"); dev_err(&host->dev, "failed to setup chip for transfer\n");
return ret; return ret;
} }
master->cur_msg->state = xfer; host->cur_msg->state = xfer;
espi->rx = 0; espi->rx = 0;
espi->tx = 0; espi->tx = 0;
@ -503,10 +503,10 @@ static int ep93xx_spi_transfer_one(struct spi_master *master,
* So in these cases we will be using PIO and don't bother for DMA. * So in these cases we will be using PIO and don't bother for DMA.
*/ */
if (espi->dma_rx && xfer->len > SPI_FIFO_SIZE) if (espi->dma_rx && xfer->len > SPI_FIFO_SIZE)
return ep93xx_spi_dma_transfer(master); return ep93xx_spi_dma_transfer(host);
/* Using PIO so prime the TX FIFO and enable interrupts */ /* Using PIO so prime the TX FIFO and enable interrupts */
ep93xx_spi_read_write(master); ep93xx_spi_read_write(host);
val = readl(espi->mmio + SSPCR1); val = readl(espi->mmio + SSPCR1);
val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
@ -516,10 +516,10 @@ static int ep93xx_spi_transfer_one(struct spi_master *master,
return 1; return 1;
} }
static int ep93xx_spi_prepare_message(struct spi_master *master, static int ep93xx_spi_prepare_message(struct spi_controller *host,
struct spi_message *msg) struct spi_message *msg)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
unsigned long timeout; unsigned long timeout;
/* /*
@ -528,7 +528,7 @@ static int ep93xx_spi_prepare_message(struct spi_master *master,
timeout = jiffies + msecs_to_jiffies(SPI_TIMEOUT); timeout = jiffies + msecs_to_jiffies(SPI_TIMEOUT);
while (readl(espi->mmio + SSPSR) & SSPSR_RNE) { while (readl(espi->mmio + SSPSR) & SSPSR_RNE) {
if (time_after(jiffies, timeout)) { if (time_after(jiffies, timeout)) {
dev_warn(&master->dev, dev_warn(&host->dev,
"timeout while flushing RX FIFO\n"); "timeout while flushing RX FIFO\n");
return -ETIMEDOUT; return -ETIMEDOUT;
} }
@ -544,9 +544,9 @@ static int ep93xx_spi_prepare_message(struct spi_master *master,
return 0; return 0;
} }
static int ep93xx_spi_prepare_hardware(struct spi_master *master) static int ep93xx_spi_prepare_hardware(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
u32 val; u32 val;
int ret; int ret;
@ -561,9 +561,9 @@ static int ep93xx_spi_prepare_hardware(struct spi_master *master)
return 0; return 0;
} }
static int ep93xx_spi_unprepare_hardware(struct spi_master *master) static int ep93xx_spi_unprepare_hardware(struct spi_controller *host)
{ {
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
u32 val; u32 val;
val = readl(espi->mmio + SSPCR1); val = readl(espi->mmio + SSPCR1);
@ -646,7 +646,7 @@ static void ep93xx_spi_release_dma(struct ep93xx_spi *espi)
static int ep93xx_spi_probe(struct platform_device *pdev) static int ep93xx_spi_probe(struct platform_device *pdev)
{ {
struct spi_master *master; struct spi_controller *host;
struct ep93xx_spi_info *info; struct ep93xx_spi_info *info;
struct ep93xx_spi *espi; struct ep93xx_spi *espi;
struct resource *res; struct resource *res;
@ -663,54 +663,54 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
if (irq < 0) if (irq < 0)
return irq; return irq;
master = spi_alloc_master(&pdev->dev, sizeof(*espi)); host = spi_alloc_host(&pdev->dev, sizeof(*espi));
if (!master) if (!host)
return -ENOMEM; return -ENOMEM;
master->use_gpio_descriptors = true; host->use_gpio_descriptors = true;
master->prepare_transfer_hardware = ep93xx_spi_prepare_hardware; host->prepare_transfer_hardware = ep93xx_spi_prepare_hardware;
master->unprepare_transfer_hardware = ep93xx_spi_unprepare_hardware; host->unprepare_transfer_hardware = ep93xx_spi_unprepare_hardware;
master->prepare_message = ep93xx_spi_prepare_message; host->prepare_message = ep93xx_spi_prepare_message;
master->transfer_one = ep93xx_spi_transfer_one; host->transfer_one = ep93xx_spi_transfer_one;
master->bus_num = pdev->id; host->bus_num = pdev->id;
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; host->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16); host->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 16);
/* /*
* The SPI core will count the number of GPIO descriptors to figure * The SPI core will count the number of GPIO descriptors to figure
* out the number of chip selects available on the platform. * out the number of chip selects available on the platform.
*/ */
master->num_chipselect = 0; host->num_chipselect = 0;
platform_set_drvdata(pdev, master); platform_set_drvdata(pdev, host);
espi = spi_master_get_devdata(master); espi = spi_controller_get_devdata(host);
espi->clk = devm_clk_get(&pdev->dev, NULL); espi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(espi->clk)) { if (IS_ERR(espi->clk)) {
dev_err(&pdev->dev, "unable to get spi clock\n"); dev_err(&pdev->dev, "unable to get spi clock\n");
error = PTR_ERR(espi->clk); error = PTR_ERR(espi->clk);
goto fail_release_master; goto fail_release_host;
} }
/* /*
* Calculate maximum and minimum supported clock rates * Calculate maximum and minimum supported clock rates
* for the controller. * for the controller.
*/ */
master->max_speed_hz = clk_get_rate(espi->clk) / 2; host->max_speed_hz = clk_get_rate(espi->clk) / 2;
master->min_speed_hz = clk_get_rate(espi->clk) / (254 * 256); host->min_speed_hz = clk_get_rate(espi->clk) / (254 * 256);
espi->mmio = devm_platform_get_and_ioremap_resource(pdev, 0, &res); espi->mmio = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(espi->mmio)) { if (IS_ERR(espi->mmio)) {
error = PTR_ERR(espi->mmio); error = PTR_ERR(espi->mmio);
goto fail_release_master; goto fail_release_host;
} }
espi->sspdr_phys = res->start + SSPDR; espi->sspdr_phys = res->start + SSPDR;
error = devm_request_irq(&pdev->dev, irq, ep93xx_spi_interrupt, error = devm_request_irq(&pdev->dev, irq, ep93xx_spi_interrupt,
0, "ep93xx-spi", master); 0, "ep93xx-spi", host);
if (error) { if (error) {
dev_err(&pdev->dev, "failed to request irq\n"); dev_err(&pdev->dev, "failed to request irq\n");
goto fail_release_master; goto fail_release_host;
} }
if (info->use_dma && ep93xx_spi_setup_dma(espi)) if (info->use_dma && ep93xx_spi_setup_dma(espi))
@ -719,9 +719,9 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
/* make sure that the hardware is disabled */ /* make sure that the hardware is disabled */
writel(0, espi->mmio + SSPCR1); writel(0, espi->mmio + SSPCR1);
error = devm_spi_register_master(&pdev->dev, master); error = devm_spi_register_controller(&pdev->dev, host);
if (error) { if (error) {
dev_err(&pdev->dev, "failed to register SPI master\n"); dev_err(&pdev->dev, "failed to register SPI host\n");
goto fail_free_dma; goto fail_free_dma;
} }
@ -732,16 +732,16 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
fail_free_dma: fail_free_dma:
ep93xx_spi_release_dma(espi); ep93xx_spi_release_dma(espi);
fail_release_master: fail_release_host:
spi_master_put(master); spi_controller_put(host);
return error; return error;
} }
static void ep93xx_spi_remove(struct platform_device *pdev) static void ep93xx_spi_remove(struct platform_device *pdev)
{ {
struct spi_master *master = platform_get_drvdata(pdev); struct spi_controller *host = platform_get_drvdata(pdev);
struct ep93xx_spi *espi = spi_master_get_devdata(master); struct ep93xx_spi *espi = spi_controller_get_devdata(host);
ep93xx_spi_release_dma(espi); ep93xx_spi_release_dma(espi);
} }