mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-16 09:13:55 +08:00
spi: atmel: switch to use modern name
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/20230110131805.2827248-2-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
parent
be5852457b
commit
398b6b310e
@ -358,7 +358,7 @@ static void cs_activate(struct atmel_spi *as, struct spi_device *spi)
|
||||
u32 csr;
|
||||
|
||||
/* Make sure clock polarity is correct */
|
||||
for (i = 0; i < spi->master->num_chipselect; i++) {
|
||||
for (i = 0; i < spi->controller->num_chipselect; i++) {
|
||||
csr = spi_readl(as, CSR0 + 4 * i);
|
||||
if ((csr ^ cpol) & SPI_BIT(CPOL))
|
||||
spi_writel(as, CSR0 + 4 * i,
|
||||
@ -419,11 +419,11 @@ static inline bool atmel_spi_use_dma(struct atmel_spi *as,
|
||||
return as->use_dma && xfer->len >= DMA_MIN_BYTES;
|
||||
}
|
||||
|
||||
static bool atmel_spi_can_dma(struct spi_master *master,
|
||||
static bool atmel_spi_can_dma(struct spi_controller *host,
|
||||
struct spi_device *spi,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
if (IS_ENABLED(CONFIG_SOC_SAM_V4_V5))
|
||||
return atmel_spi_use_dma(as, xfer) &&
|
||||
@ -435,7 +435,7 @@ static bool atmel_spi_can_dma(struct spi_master *master,
|
||||
|
||||
static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
|
||||
{
|
||||
struct spi_master *master = platform_get_drvdata(as->pdev);
|
||||
struct spi_controller *host = platform_get_drvdata(as->pdev);
|
||||
struct dma_slave_config slave_config;
|
||||
int err = 0;
|
||||
|
||||
@ -467,21 +467,21 @@ static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
|
||||
* So we'd rather write only one data at the time. Hence the transmit
|
||||
* path works the same whether FIFOs are available (and enabled) or not.
|
||||
*/
|
||||
if (dmaengine_slave_config(master->dma_tx, &slave_config)) {
|
||||
if (dmaengine_slave_config(host->dma_tx, &slave_config)) {
|
||||
dev_err(&as->pdev->dev,
|
||||
"failed to configure tx dma channel\n");
|
||||
err = -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* This driver configures the spi controller for master mode (MSTR bit
|
||||
* This driver configures the spi controller for host mode (MSTR bit
|
||||
* set to '1' in the Mode Register).
|
||||
* So according to the datasheet, when FIFOs are available (and
|
||||
* enabled), the Receive FIFO operates in Single Data Mode.
|
||||
* So the receive path works the same whether FIFOs are available (and
|
||||
* enabled) or not.
|
||||
*/
|
||||
if (dmaengine_slave_config(master->dma_rx, &slave_config)) {
|
||||
if (dmaengine_slave_config(host->dma_rx, &slave_config)) {
|
||||
dev_err(&as->pdev->dev,
|
||||
"failed to configure rx dma channel\n");
|
||||
err = -EINVAL;
|
||||
@ -490,22 +490,22 @@ static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
|
||||
return err;
|
||||
}
|
||||
|
||||
static int atmel_spi_configure_dma(struct spi_master *master,
|
||||
static int atmel_spi_configure_dma(struct spi_controller *host,
|
||||
struct atmel_spi *as)
|
||||
{
|
||||
struct device *dev = &as->pdev->dev;
|
||||
int err;
|
||||
|
||||
master->dma_tx = dma_request_chan(dev, "tx");
|
||||
if (IS_ERR(master->dma_tx)) {
|
||||
err = PTR_ERR(master->dma_tx);
|
||||
host->dma_tx = dma_request_chan(dev, "tx");
|
||||
if (IS_ERR(host->dma_tx)) {
|
||||
err = PTR_ERR(host->dma_tx);
|
||||
dev_dbg(dev, "No TX DMA channel, DMA is disabled\n");
|
||||
goto error_clear;
|
||||
}
|
||||
|
||||
master->dma_rx = dma_request_chan(dev, "rx");
|
||||
if (IS_ERR(master->dma_rx)) {
|
||||
err = PTR_ERR(master->dma_rx);
|
||||
host->dma_rx = dma_request_chan(dev, "rx");
|
||||
if (IS_ERR(host->dma_rx)) {
|
||||
err = PTR_ERR(host->dma_rx);
|
||||
/*
|
||||
* No reason to check EPROBE_DEFER here since we have already
|
||||
* requested tx channel.
|
||||
@ -520,45 +520,45 @@ static int atmel_spi_configure_dma(struct spi_master *master,
|
||||
|
||||
dev_info(&as->pdev->dev,
|
||||
"Using %s (tx) and %s (rx) for DMA transfers\n",
|
||||
dma_chan_name(master->dma_tx),
|
||||
dma_chan_name(master->dma_rx));
|
||||
dma_chan_name(host->dma_tx),
|
||||
dma_chan_name(host->dma_rx));
|
||||
|
||||
return 0;
|
||||
error:
|
||||
if (!IS_ERR(master->dma_rx))
|
||||
dma_release_channel(master->dma_rx);
|
||||
if (!IS_ERR(master->dma_tx))
|
||||
dma_release_channel(master->dma_tx);
|
||||
if (!IS_ERR(host->dma_rx))
|
||||
dma_release_channel(host->dma_rx);
|
||||
if (!IS_ERR(host->dma_tx))
|
||||
dma_release_channel(host->dma_tx);
|
||||
error_clear:
|
||||
master->dma_tx = master->dma_rx = NULL;
|
||||
host->dma_tx = host->dma_rx = NULL;
|
||||
return err;
|
||||
}
|
||||
|
||||
static void atmel_spi_stop_dma(struct spi_master *master)
|
||||
static void atmel_spi_stop_dma(struct spi_controller *host)
|
||||
{
|
||||
if (master->dma_rx)
|
||||
dmaengine_terminate_all(master->dma_rx);
|
||||
if (master->dma_tx)
|
||||
dmaengine_terminate_all(master->dma_tx);
|
||||
if (host->dma_rx)
|
||||
dmaengine_terminate_all(host->dma_rx);
|
||||
if (host->dma_tx)
|
||||
dmaengine_terminate_all(host->dma_tx);
|
||||
}
|
||||
|
||||
static void atmel_spi_release_dma(struct spi_master *master)
|
||||
static void atmel_spi_release_dma(struct spi_controller *host)
|
||||
{
|
||||
if (master->dma_rx) {
|
||||
dma_release_channel(master->dma_rx);
|
||||
master->dma_rx = NULL;
|
||||
if (host->dma_rx) {
|
||||
dma_release_channel(host->dma_rx);
|
||||
host->dma_rx = NULL;
|
||||
}
|
||||
if (master->dma_tx) {
|
||||
dma_release_channel(master->dma_tx);
|
||||
master->dma_tx = NULL;
|
||||
if (host->dma_tx) {
|
||||
dma_release_channel(host->dma_tx);
|
||||
host->dma_tx = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/* This function is called by the DMA driver from tasklet context */
|
||||
static void dma_callback(void *data)
|
||||
{
|
||||
struct spi_master *master = data;
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = data;
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
if (is_vmalloc_addr(as->current_transfer->rx_buf) &&
|
||||
IS_ENABLED(CONFIG_SOC_SAM_V4_V5)) {
|
||||
@ -571,13 +571,13 @@ static void dma_callback(void *data)
|
||||
/*
|
||||
* Next transfer using PIO without FIFO.
|
||||
*/
|
||||
static void atmel_spi_next_xfer_single(struct spi_master *master,
|
||||
static void atmel_spi_next_xfer_single(struct spi_controller *host,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
unsigned long xfer_pos = xfer->len - as->current_remaining_bytes;
|
||||
|
||||
dev_vdbg(master->dev.parent, "atmel_spi_next_xfer_pio\n");
|
||||
dev_vdbg(host->dev.parent, "atmel_spi_next_xfer_pio\n");
|
||||
|
||||
/* Make sure data is not remaining in RDR */
|
||||
spi_readl(as, RDR);
|
||||
@ -591,7 +591,7 @@ static void atmel_spi_next_xfer_single(struct spi_master *master,
|
||||
else
|
||||
spi_writel(as, TDR, *(u8 *)(xfer->tx_buf + xfer_pos));
|
||||
|
||||
dev_dbg(master->dev.parent,
|
||||
dev_dbg(host->dev.parent,
|
||||
" start pio xfer %p: len %u tx %p rx %p bitpw %d\n",
|
||||
xfer, xfer->len, xfer->tx_buf, xfer->rx_buf,
|
||||
xfer->bits_per_word);
|
||||
@ -603,10 +603,10 @@ static void atmel_spi_next_xfer_single(struct spi_master *master,
|
||||
/*
|
||||
* Next transfer using PIO with FIFO.
|
||||
*/
|
||||
static void atmel_spi_next_xfer_fifo(struct spi_master *master,
|
||||
static void atmel_spi_next_xfer_fifo(struct spi_controller *host,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
u32 current_remaining_data, num_data;
|
||||
u32 offset = xfer->len - as->current_remaining_bytes;
|
||||
const u16 *words = (const u16 *)((u8 *)xfer->tx_buf + offset);
|
||||
@ -614,7 +614,7 @@ static void atmel_spi_next_xfer_fifo(struct spi_master *master,
|
||||
u16 td0, td1;
|
||||
u32 fifomr;
|
||||
|
||||
dev_vdbg(master->dev.parent, "atmel_spi_next_xfer_fifo\n");
|
||||
dev_vdbg(host->dev.parent, "atmel_spi_next_xfer_fifo\n");
|
||||
|
||||
/* Compute the number of data to transfer in the current iteration */
|
||||
current_remaining_data = ((xfer->bits_per_word > 8) ?
|
||||
@ -658,7 +658,7 @@ static void atmel_spi_next_xfer_fifo(struct spi_master *master,
|
||||
num_data--;
|
||||
}
|
||||
|
||||
dev_dbg(master->dev.parent,
|
||||
dev_dbg(host->dev.parent,
|
||||
" start fifo xfer %p: len %u tx %p rx %p bitpw %d\n",
|
||||
xfer, xfer->len, xfer->tx_buf, xfer->rx_buf,
|
||||
xfer->bits_per_word);
|
||||
@ -673,32 +673,32 @@ static void atmel_spi_next_xfer_fifo(struct spi_master *master,
|
||||
/*
|
||||
* Next transfer using PIO.
|
||||
*/
|
||||
static void atmel_spi_next_xfer_pio(struct spi_master *master,
|
||||
static void atmel_spi_next_xfer_pio(struct spi_controller *host,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
if (as->fifo_size)
|
||||
atmel_spi_next_xfer_fifo(master, xfer);
|
||||
atmel_spi_next_xfer_fifo(host, xfer);
|
||||
else
|
||||
atmel_spi_next_xfer_single(master, xfer);
|
||||
atmel_spi_next_xfer_single(host, xfer);
|
||||
}
|
||||
|
||||
/*
|
||||
* Submit next transfer for DMA.
|
||||
*/
|
||||
static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
|
||||
static int atmel_spi_next_xfer_dma_submit(struct spi_controller *host,
|
||||
struct spi_transfer *xfer,
|
||||
u32 *plen)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct dma_chan *rxchan = master->dma_rx;
|
||||
struct dma_chan *txchan = master->dma_tx;
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
struct dma_chan *rxchan = host->dma_rx;
|
||||
struct dma_chan *txchan = host->dma_tx;
|
||||
struct dma_async_tx_descriptor *rxdesc;
|
||||
struct dma_async_tx_descriptor *txdesc;
|
||||
dma_cookie_t cookie;
|
||||
|
||||
dev_vdbg(master->dev.parent, "atmel_spi_next_xfer_dma_submit\n");
|
||||
dev_vdbg(host->dev.parent, "atmel_spi_next_xfer_dma_submit\n");
|
||||
|
||||
/* Check that the channels are available */
|
||||
if (!rxchan || !txchan)
|
||||
@ -749,7 +749,7 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
|
||||
if (!txdesc)
|
||||
goto err_dma;
|
||||
|
||||
dev_dbg(master->dev.parent,
|
||||
dev_dbg(host->dev.parent,
|
||||
" start dma xfer %p: len %u tx %p/%08llx rx %p/%08llx\n",
|
||||
xfer, xfer->len, xfer->tx_buf, (unsigned long long)xfer->tx_dma,
|
||||
xfer->rx_buf, (unsigned long long)xfer->rx_dma);
|
||||
@ -759,7 +759,7 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
|
||||
|
||||
/* Put the callback on the RX transfer only, that should finish last */
|
||||
rxdesc->callback = dma_callback;
|
||||
rxdesc->callback_param = master;
|
||||
rxdesc->callback_param = host;
|
||||
|
||||
/* Submit and fire RX and TX with TX last so we're ready to read! */
|
||||
cookie = rxdesc->tx_submit(rxdesc);
|
||||
@ -775,12 +775,12 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
|
||||
|
||||
err_dma:
|
||||
spi_writel(as, IDR, SPI_BIT(OVRES));
|
||||
atmel_spi_stop_dma(master);
|
||||
atmel_spi_stop_dma(host);
|
||||
err_exit:
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
static void atmel_spi_next_xfer_data(struct spi_master *master,
|
||||
static void atmel_spi_next_xfer_data(struct spi_controller *host,
|
||||
struct spi_transfer *xfer,
|
||||
dma_addr_t *tx_dma,
|
||||
dma_addr_t *rx_dma,
|
||||
@ -788,8 +788,8 @@ static void atmel_spi_next_xfer_data(struct spi_master *master,
|
||||
{
|
||||
*rx_dma = xfer->rx_dma + xfer->len - *plen;
|
||||
*tx_dma = xfer->tx_dma + xfer->len - *plen;
|
||||
if (*plen > master->max_dma_len)
|
||||
*plen = master->max_dma_len;
|
||||
if (*plen > host->max_dma_len)
|
||||
*plen = host->max_dma_len;
|
||||
}
|
||||
|
||||
static int atmel_spi_set_xfer_speed(struct atmel_spi *as,
|
||||
@ -844,17 +844,17 @@ static int atmel_spi_set_xfer_speed(struct atmel_spi *as,
|
||||
* Submit next transfer for PDC.
|
||||
* lock is held, spi irq is blocked
|
||||
*/
|
||||
static void atmel_spi_pdc_next_xfer(struct spi_master *master,
|
||||
static void atmel_spi_pdc_next_xfer(struct spi_controller *host,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
u32 len;
|
||||
dma_addr_t tx_dma, rx_dma;
|
||||
|
||||
spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS));
|
||||
|
||||
len = as->current_remaining_bytes;
|
||||
atmel_spi_next_xfer_data(master, xfer, &tx_dma, &rx_dma, &len);
|
||||
atmel_spi_next_xfer_data(host, xfer, &tx_dma, &rx_dma, &len);
|
||||
as->current_remaining_bytes -= len;
|
||||
|
||||
spi_writel(as, RPR, rx_dma);
|
||||
@ -865,7 +865,7 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master,
|
||||
spi_writel(as, RCR, len);
|
||||
spi_writel(as, TCR, len);
|
||||
|
||||
dev_dbg(&master->dev,
|
||||
dev_dbg(&host->dev,
|
||||
" start xfer %p: len %u tx %p/%08llx rx %p/%08llx\n",
|
||||
xfer, xfer->len, xfer->tx_buf,
|
||||
(unsigned long long)xfer->tx_dma, xfer->rx_buf,
|
||||
@ -873,7 +873,7 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master,
|
||||
|
||||
if (as->current_remaining_bytes) {
|
||||
len = as->current_remaining_bytes;
|
||||
atmel_spi_next_xfer_data(master, xfer, &tx_dma, &rx_dma, &len);
|
||||
atmel_spi_next_xfer_data(host, xfer, &tx_dma, &rx_dma, &len);
|
||||
as->current_remaining_bytes -= len;
|
||||
|
||||
spi_writel(as, RNPR, rx_dma);
|
||||
@ -884,7 +884,7 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master,
|
||||
spi_writel(as, RNCR, len);
|
||||
spi_writel(as, TNCR, len);
|
||||
|
||||
dev_dbg(&master->dev,
|
||||
dev_dbg(&host->dev,
|
||||
" next xfer %p: len %u tx %p/%08llx rx %p/%08llx\n",
|
||||
xfer, xfer->len, xfer->tx_buf,
|
||||
(unsigned long long)xfer->tx_dma, xfer->rx_buf,
|
||||
@ -944,14 +944,14 @@ atmel_spi_dma_map_xfer(struct atmel_spi *as, struct spi_transfer *xfer)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void atmel_spi_dma_unmap_xfer(struct spi_master *master,
|
||||
static void atmel_spi_dma_unmap_xfer(struct spi_controller *host,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
if (xfer->tx_dma != INVALID_DMA_ADDRESS)
|
||||
dma_unmap_single(master->dev.parent, xfer->tx_dma,
|
||||
dma_unmap_single(host->dev.parent, xfer->tx_dma,
|
||||
xfer->len, DMA_TO_DEVICE);
|
||||
if (xfer->rx_dma != INVALID_DMA_ADDRESS)
|
||||
dma_unmap_single(master->dev.parent, xfer->rx_dma,
|
||||
dma_unmap_single(host->dev.parent, xfer->rx_dma,
|
||||
xfer->len, DMA_FROM_DEVICE);
|
||||
}
|
||||
|
||||
@ -1039,8 +1039,8 @@ atmel_spi_pump_pio_data(struct atmel_spi *as, struct spi_transfer *xfer)
|
||||
static irqreturn_t
|
||||
atmel_spi_pio_interrupt(int irq, void *dev_id)
|
||||
{
|
||||
struct spi_master *master = dev_id;
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = dev_id;
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
u32 status, pending, imr;
|
||||
struct spi_transfer *xfer;
|
||||
int ret = IRQ_NONE;
|
||||
@ -1052,7 +1052,7 @@ atmel_spi_pio_interrupt(int irq, void *dev_id)
|
||||
if (pending & SPI_BIT(OVRES)) {
|
||||
ret = IRQ_HANDLED;
|
||||
spi_writel(as, IDR, SPI_BIT(OVRES));
|
||||
dev_warn(master->dev.parent, "overrun\n");
|
||||
dev_warn(host->dev.parent, "overrun\n");
|
||||
|
||||
/*
|
||||
* When we get an overrun, we disregard the current
|
||||
@ -1097,8 +1097,8 @@ atmel_spi_pio_interrupt(int irq, void *dev_id)
|
||||
static irqreturn_t
|
||||
atmel_spi_pdc_interrupt(int irq, void *dev_id)
|
||||
{
|
||||
struct spi_master *master = dev_id;
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = dev_id;
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
u32 status, pending, imr;
|
||||
int ret = IRQ_NONE;
|
||||
|
||||
@ -1152,12 +1152,12 @@ static int atmel_word_delay_csr(struct spi_device *spi, struct atmel_spi *as)
|
||||
static void initialize_native_cs_for_gpio(struct atmel_spi *as)
|
||||
{
|
||||
int i;
|
||||
struct spi_master *master = platform_get_drvdata(as->pdev);
|
||||
struct spi_controller *host = platform_get_drvdata(as->pdev);
|
||||
|
||||
if (!as->native_cs_free)
|
||||
return; /* already initialized */
|
||||
|
||||
if (!master->cs_gpiods)
|
||||
if (!host->cs_gpiods)
|
||||
return; /* No CS GPIO */
|
||||
|
||||
/*
|
||||
@ -1170,7 +1170,7 @@ static void initialize_native_cs_for_gpio(struct atmel_spi *as)
|
||||
i = 1;
|
||||
|
||||
for (; i < 4; i++)
|
||||
if (master->cs_gpiods[i])
|
||||
if (host->cs_gpiods[i])
|
||||
as->native_cs_free |= BIT(i);
|
||||
|
||||
if (as->native_cs_free)
|
||||
@ -1186,7 +1186,7 @@ static int atmel_spi_setup(struct spi_device *spi)
|
||||
int chip_select;
|
||||
int word_delay_csr;
|
||||
|
||||
as = spi_master_get_devdata(spi->master);
|
||||
as = spi_controller_get_devdata(spi->controller);
|
||||
|
||||
/* see notes above re chipselect */
|
||||
if (!spi->cs_gpiod && (spi->mode & SPI_CS_HIGH)) {
|
||||
@ -1254,7 +1254,7 @@ static int atmel_spi_setup(struct spi_device *spi)
|
||||
|
||||
static void atmel_spi_set_cs(struct spi_device *spi, bool enable)
|
||||
{
|
||||
struct atmel_spi *as = spi_master_get_devdata(spi->master);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(spi->controller);
|
||||
/* the core doesn't really pass us enable/disable, but CS HIGH vs CS LOW
|
||||
* since we already have routines for activate/deactivate translate
|
||||
* high/low to active/inactive
|
||||
@ -1269,7 +1269,7 @@ static void atmel_spi_set_cs(struct spi_device *spi, bool enable)
|
||||
|
||||
}
|
||||
|
||||
static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
static int atmel_spi_one_transfer(struct spi_controller *host,
|
||||
struct spi_device *spi,
|
||||
struct spi_transfer *xfer)
|
||||
{
|
||||
@ -1281,7 +1281,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
int ret;
|
||||
unsigned long dma_timeout;
|
||||
|
||||
as = spi_master_get_devdata(master);
|
||||
as = spi_controller_get_devdata(host);
|
||||
|
||||
asd = spi->controller_state;
|
||||
bits = (asd->csr >> 4) & 0xf;
|
||||
@ -1295,7 +1295,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
* DMA map early, for performance (empties dcache ASAP) and
|
||||
* better fault reporting.
|
||||
*/
|
||||
if ((!master->cur_msg->is_dma_mapped)
|
||||
if ((!host->cur_msg->is_dma_mapped)
|
||||
&& as->use_pdc) {
|
||||
if (atmel_spi_dma_map_xfer(as, xfer) < 0)
|
||||
return -ENOMEM;
|
||||
@ -1311,11 +1311,11 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
|
||||
if (as->use_pdc) {
|
||||
atmel_spi_lock(as);
|
||||
atmel_spi_pdc_next_xfer(master, xfer);
|
||||
atmel_spi_pdc_next_xfer(host, xfer);
|
||||
atmel_spi_unlock(as);
|
||||
} else if (atmel_spi_use_dma(as, xfer)) {
|
||||
len = as->current_remaining_bytes;
|
||||
ret = atmel_spi_next_xfer_dma_submit(master,
|
||||
ret = atmel_spi_next_xfer_dma_submit(host,
|
||||
xfer, &len);
|
||||
if (ret) {
|
||||
dev_err(&spi->dev,
|
||||
@ -1329,7 +1329,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
}
|
||||
} else {
|
||||
atmel_spi_lock(as);
|
||||
atmel_spi_next_xfer_pio(master, xfer);
|
||||
atmel_spi_next_xfer_pio(host, xfer);
|
||||
atmel_spi_unlock(as);
|
||||
}
|
||||
|
||||
@ -1346,7 +1346,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
|
||||
if (as->done_status) {
|
||||
if (as->use_pdc) {
|
||||
dev_warn(master->dev.parent,
|
||||
dev_warn(host->dev.parent,
|
||||
"overrun (%u/%u remaining)\n",
|
||||
spi_readl(as, TCR), spi_readl(as, RCR));
|
||||
|
||||
@ -1362,7 +1362,7 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
if (spi_readl(as, SR) & SPI_BIT(TXEMPTY))
|
||||
break;
|
||||
if (!timeout)
|
||||
dev_warn(master->dev.parent,
|
||||
dev_warn(host->dev.parent,
|
||||
"timeout waiting for TXEMPTY");
|
||||
while (spi_readl(as, SR) & SPI_BIT(RDRF))
|
||||
spi_readl(as, RDR);
|
||||
@ -1371,13 +1371,13 @@ static int atmel_spi_one_transfer(struct spi_master *master,
|
||||
spi_readl(as, SR);
|
||||
|
||||
} else if (atmel_spi_use_dma(as, xfer)) {
|
||||
atmel_spi_stop_dma(master);
|
||||
atmel_spi_stop_dma(host);
|
||||
}
|
||||
}
|
||||
|
||||
if (!master->cur_msg->is_dma_mapped
|
||||
if (!host->cur_msg->is_dma_mapped
|
||||
&& as->use_pdc)
|
||||
atmel_spi_dma_unmap_xfer(master, xfer);
|
||||
atmel_spi_dma_unmap_xfer(host, xfer);
|
||||
|
||||
if (as->use_pdc)
|
||||
atmel_spi_disable_pdc_transfer(as);
|
||||
@ -1440,7 +1440,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
int irq;
|
||||
struct clk *clk;
|
||||
int ret;
|
||||
struct spi_master *master;
|
||||
struct spi_controller *host;
|
||||
struct atmel_spi *as;
|
||||
|
||||
/* Select default pin state */
|
||||
@ -1459,29 +1459,29 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
return PTR_ERR(clk);
|
||||
|
||||
/* setup spi core then atmel-specific driver state */
|
||||
master = spi_alloc_master(&pdev->dev, sizeof(*as));
|
||||
if (!master)
|
||||
host = spi_alloc_host(&pdev->dev, sizeof(*as));
|
||||
if (!host)
|
||||
return -ENOMEM;
|
||||
|
||||
/* the spi->mode bits understood by this driver: */
|
||||
master->use_gpio_descriptors = true;
|
||||
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
|
||||
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
|
||||
master->dev.of_node = pdev->dev.of_node;
|
||||
master->bus_num = pdev->id;
|
||||
master->num_chipselect = 4;
|
||||
master->setup = atmel_spi_setup;
|
||||
master->flags = (SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX |
|
||||
host->use_gpio_descriptors = true;
|
||||
host->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
|
||||
host->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
|
||||
host->dev.of_node = pdev->dev.of_node;
|
||||
host->bus_num = pdev->id;
|
||||
host->num_chipselect = 4;
|
||||
host->setup = atmel_spi_setup;
|
||||
host->flags = (SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX |
|
||||
SPI_MASTER_GPIO_SS);
|
||||
master->transfer_one = atmel_spi_one_transfer;
|
||||
master->set_cs = atmel_spi_set_cs;
|
||||
master->cleanup = atmel_spi_cleanup;
|
||||
master->auto_runtime_pm = true;
|
||||
master->max_dma_len = SPI_MAX_DMA_XFER;
|
||||
master->can_dma = atmel_spi_can_dma;
|
||||
platform_set_drvdata(pdev, master);
|
||||
host->transfer_one = atmel_spi_one_transfer;
|
||||
host->set_cs = atmel_spi_set_cs;
|
||||
host->cleanup = atmel_spi_cleanup;
|
||||
host->auto_runtime_pm = true;
|
||||
host->max_dma_len = SPI_MAX_DMA_XFER;
|
||||
host->can_dma = atmel_spi_can_dma;
|
||||
platform_set_drvdata(pdev, host);
|
||||
|
||||
as = spi_master_get_devdata(master);
|
||||
as = spi_controller_get_devdata(host);
|
||||
|
||||
spin_lock_init(&as->lock);
|
||||
|
||||
@ -1502,7 +1502,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
as->use_dma = false;
|
||||
as->use_pdc = false;
|
||||
if (as->caps.has_dma_support) {
|
||||
ret = atmel_spi_configure_dma(master, as);
|
||||
ret = atmel_spi_configure_dma(host, as);
|
||||
if (ret == 0) {
|
||||
as->use_dma = true;
|
||||
} else if (ret == -EPROBE_DEFER) {
|
||||
@ -1532,7 +1532,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
}
|
||||
}
|
||||
if (!as->use_dma)
|
||||
dev_info(master->dev.parent,
|
||||
dev_info(host->dev.parent,
|
||||
" can not allocate dma coherent memory\n");
|
||||
}
|
||||
|
||||
@ -1541,10 +1541,10 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
|
||||
if (as->use_pdc) {
|
||||
ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pdc_interrupt,
|
||||
0, dev_name(&pdev->dev), master);
|
||||
0, dev_name(&pdev->dev), host);
|
||||
} else {
|
||||
ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pio_interrupt,
|
||||
0, dev_name(&pdev->dev), master);
|
||||
0, dev_name(&pdev->dev), host);
|
||||
}
|
||||
if (ret)
|
||||
goto out_unmap_regs;
|
||||
@ -1569,7 +1569,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
|
||||
pm_runtime_set_active(&pdev->dev);
|
||||
pm_runtime_enable(&pdev->dev);
|
||||
|
||||
ret = devm_spi_register_master(&pdev->dev, master);
|
||||
ret = devm_spi_register_controller(&pdev->dev, host);
|
||||
if (ret)
|
||||
goto out_free_dma;
|
||||
|
||||
@ -1585,28 +1585,28 @@ out_free_dma:
|
||||
pm_runtime_set_suspended(&pdev->dev);
|
||||
|
||||
if (as->use_dma)
|
||||
atmel_spi_release_dma(master);
|
||||
atmel_spi_release_dma(host);
|
||||
|
||||
spi_writel(as, CR, SPI_BIT(SWRST));
|
||||
spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
|
||||
clk_disable_unprepare(clk);
|
||||
out_free_irq:
|
||||
out_unmap_regs:
|
||||
spi_master_put(master);
|
||||
spi_controller_put(host);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int atmel_spi_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct spi_master *master = platform_get_drvdata(pdev);
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = platform_get_drvdata(pdev);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
pm_runtime_get_sync(&pdev->dev);
|
||||
|
||||
/* reset the hardware and block queue progress */
|
||||
if (as->use_dma) {
|
||||
atmel_spi_stop_dma(master);
|
||||
atmel_spi_release_dma(master);
|
||||
atmel_spi_stop_dma(host);
|
||||
atmel_spi_release_dma(host);
|
||||
if (IS_ENABLED(CONFIG_SOC_SAM_V4_V5)) {
|
||||
dma_free_coherent(&pdev->dev, SPI_MAX_DMA_XFER,
|
||||
as->addr_tx_bbuf,
|
||||
@ -1633,8 +1633,8 @@ static int atmel_spi_remove(struct platform_device *pdev)
|
||||
|
||||
static int atmel_spi_runtime_suspend(struct device *dev)
|
||||
{
|
||||
struct spi_master *master = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
clk_disable_unprepare(as->clk);
|
||||
pinctrl_pm_select_sleep_state(dev);
|
||||
@ -1644,8 +1644,8 @@ static int atmel_spi_runtime_suspend(struct device *dev)
|
||||
|
||||
static int atmel_spi_runtime_resume(struct device *dev)
|
||||
{
|
||||
struct spi_master *master = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
|
||||
pinctrl_pm_select_default_state(dev);
|
||||
|
||||
@ -1654,11 +1654,11 @@ static int atmel_spi_runtime_resume(struct device *dev)
|
||||
|
||||
static int atmel_spi_suspend(struct device *dev)
|
||||
{
|
||||
struct spi_master *master = dev_get_drvdata(dev);
|
||||
struct spi_controller *host = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
/* Stop the queue running */
|
||||
ret = spi_master_suspend(master);
|
||||
ret = spi_controller_suspend(host);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1670,8 +1670,8 @@ static int atmel_spi_suspend(struct device *dev)
|
||||
|
||||
static int atmel_spi_resume(struct device *dev)
|
||||
{
|
||||
struct spi_master *master = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_master_get_devdata(master);
|
||||
struct spi_controller *host = dev_get_drvdata(dev);
|
||||
struct atmel_spi *as = spi_controller_get_devdata(host);
|
||||
int ret;
|
||||
|
||||
ret = clk_prepare_enable(as->clk);
|
||||
@ -1689,7 +1689,7 @@ static int atmel_spi_resume(struct device *dev)
|
||||
}
|
||||
|
||||
/* Start the queue running */
|
||||
return spi_master_resume(master);
|
||||
return spi_controller_resume(host);
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops atmel_spi_pm_ops = {
|
||||
|
Loading…
Reference in New Issue
Block a user