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spi: au1550: 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/20230807124105.3429709-3-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yang Yingliang 2023-08-07 20:40:47 +08:00 committed by Mark Brown
parent 40f78b74b6
commit 0c35cc597b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 37 additions and 37 deletions
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74
drivers/spi/spi-au1550.c
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@ -54,7 +54,7 @@ struct au1550_spi {
int (*txrx_bufs)(struct spi_device *spi, struct spi_transfer *t);
irqreturn_t (*irq_callback)(struct au1550_spi *hw);
struct completion master_done;
struct completion host_done;
unsigned int usedma;
u32 dma_tx_id;
@ -66,7 +66,7 @@ struct au1550_spi {
unsigned int dma_rx_tmpbuf_size;
u32 dma_rx_tmpbuf_addr;
struct spi_master *master;
struct spi_controller *host;
struct device *dev;
struct au1550_spi_info *pdata;
struct resource *ioarea;
@ -159,7 +159,7 @@ static void au1550_spi_reset_fifos(struct au1550_spi *hw)
*/
static void au1550_spi_chipsel(struct spi_device *spi, int value)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
struct au1550_spi *hw = spi_controller_get_devdata(spi->controller);
unsigned int cspol = spi->mode & SPI_CS_HIGH ? 1 : 0;
u32 cfg, stat;
@ -219,7 +219,7 @@ static void au1550_spi_chipsel(struct spi_device *spi, int value)
static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
struct au1550_spi *hw = spi_controller_get_devdata(spi->controller);
unsigned int bpw, hz;
u32 cfg, stat;
@ -272,7 +272,7 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
* no reliable way how to recognize that spi transfer is done
* dma complete callbacks are called before real spi transfer is finished
* and if only tx dma channel is set up (and rx fifo overflow event masked)
* spi master done event irq is not generated unless rx fifo is empty (emptied)
* spi host done event irq is not generated unless rx fifo is empty (emptied)
* so we need rx tmp buffer to use for rx dma if user does not provide one
*/
static int au1550_spi_dma_rxtmp_alloc(struct au1550_spi *hw, unsigned int size)
@ -303,7 +303,7 @@ static void au1550_spi_dma_rxtmp_free(struct au1550_spi *hw)
static int au1550_spi_dma_txrxb(struct spi_device *spi, struct spi_transfer *t)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
struct au1550_spi *hw = spi_controller_get_devdata(spi->controller);
dma_addr_t dma_tx_addr;
dma_addr_t dma_rx_addr;
u32 res;
@ -387,7 +387,7 @@ static int au1550_spi_dma_txrxb(struct spi_device *spi, struct spi_transfer *t)
hw->regs->psc_spipcr = PSC_SPIPCR_MS;
wmb(); /* drain writebuffer */
wait_for_completion(&hw->master_done);
wait_for_completion(&hw->host_done);
au1xxx_dbdma_stop(hw->dma_tx_ch);
au1xxx_dbdma_stop(hw->dma_rx_ch);
@ -449,7 +449,7 @@ static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw)
"dma transfer: unexpected SPI error (event=0x%x stat=0x%x)!\n",
evnt, stat);
complete(&hw->master_done);
complete(&hw->host_done);
return IRQ_HANDLED;
}
@ -458,7 +458,7 @@ static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw)
au1550_spi_mask_ack_all(hw);
hw->rx_count = hw->len;
hw->tx_count = hw->len;
complete(&hw->master_done);
complete(&hw->host_done);
}
return IRQ_HANDLED;
}
@ -502,7 +502,7 @@ AU1550_SPI_TX_WORD(32, 0xffffff)
static int au1550_spi_pio_txrxb(struct spi_device *spi, struct spi_transfer *t)
{
u32 stat, mask;
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
struct au1550_spi *hw = spi_controller_get_devdata(spi->controller);
hw->tx = t->tx_buf;
hw->rx = t->rx_buf;
@ -537,7 +537,7 @@ static int au1550_spi_pio_txrxb(struct spi_device *spi, struct spi_transfer *t)
hw->regs->psc_spipcr = PSC_SPIPCR_MS;
wmb(); /* drain writebuffer */
wait_for_completion(&hw->master_done);
wait_for_completion(&hw->host_done);
return min(hw->rx_count, hw->tx_count);
}
@ -568,7 +568,7 @@ static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw)
dev_err(hw->dev,
"pio transfer: unexpected SPI error (event=0x%x stat=0x%x)!\n",
evnt, stat);
complete(&hw->master_done);
complete(&hw->host_done);
return IRQ_HANDLED;
}
@ -605,11 +605,11 @@ static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw)
/*
* Restart the SPI transmission in case of a transmit underflow.
* This seems to work despite the notes in the Au1550 data book
* of Figure 8-4 with flowchart for SPI master operation:
* of Figure 8-4 with flowchart for SPI host operation:
*
* """Note 1: An XFR Error Interrupt occurs, unless masked,
* for any of the following events: Tx FIFO Underflow,
* Rx FIFO Overflow, or Multiple-master Error
* Rx FIFO Overflow, or Multiple-host Error
* Note 2: In case of a Tx Underflow Error, all zeroes are
* transmitted."""
*
@ -627,14 +627,14 @@ static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw)
if (hw->rx_count >= hw->len) {
/* transfer completed successfully */
au1550_spi_mask_ack_all(hw);
complete(&hw->master_done);
complete(&hw->host_done);
}
return IRQ_HANDLED;
}
static int au1550_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
struct au1550_spi *hw = spi_controller_get_devdata(spi->controller);
return hw->txrx_bufs(spi, t);
}
@ -723,24 +723,24 @@ static void au1550_spi_setup_psc_as_spi(struct au1550_spi *hw)
static int au1550_spi_probe(struct platform_device *pdev)
{
struct au1550_spi *hw;
struct spi_master *master;
struct spi_controller *host;
struct resource *r;
int err = 0;
master = spi_alloc_master(&pdev->dev, sizeof(struct au1550_spi));
if (master == NULL) {
dev_err(&pdev->dev, "No memory for spi_master\n");
host = spi_alloc_host(&pdev->dev, sizeof(struct au1550_spi));
if (host == NULL) {
dev_err(&pdev->dev, "No memory for spi_controller\n");
err = -ENOMEM;
goto err_nomem;
}
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 24);
host->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
host->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 24);
hw = spi_master_get_devdata(master);
hw = spi_controller_get_devdata(host);
hw->master = master;
hw->host = host;
hw->pdata = dev_get_platdata(&pdev->dev);
hw->dev = &pdev->dev;
@ -798,9 +798,9 @@ static int au1550_spi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, hw);
init_completion(&hw->master_done);
init_completion(&hw->host_done);
hw->bitbang.master = hw->master;
hw->bitbang.master = hw->host;
hw->bitbang.setup_transfer = au1550_spi_setupxfer;
hw->bitbang.chipselect = au1550_spi_chipsel;
hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs;
@ -858,8 +858,8 @@ static int au1550_spi_probe(struct platform_device *pdev)
goto err_no_irq;
}
master->bus_num = pdev->id;
master->num_chipselect = hw->pdata->num_chipselect;
host->bus_num = pdev->id;
host->num_chipselect = hw->pdata->num_chipselect;
/*
* precompute valid range for spi freq - from au1550 datasheet:
@ -874,8 +874,8 @@ static int au1550_spi_probe(struct platform_device *pdev)
int min_div = (2 << 0) * (2 * (4 + 1));
int max_div = (2 << 3) * (2 * (63 + 1));
master->max_speed_hz = hw->pdata->mainclk_hz / min_div;
master->min_speed_hz =
host->max_speed_hz = hw->pdata->mainclk_hz / min_div;
host->min_speed_hz =
hw->pdata->mainclk_hz / (max_div + 1) + 1;
}
@ -883,13 +883,13 @@ static int au1550_spi_probe(struct platform_device *pdev)
err = spi_bitbang_start(&hw->bitbang);
if (err) {
dev_err(&pdev->dev, "Failed to register SPI master\n");
dev_err(&pdev->dev, "Failed to register SPI host\n");
goto err_register;
}
dev_info(&pdev->dev,
"spi master registered: bus_num=%d num_chipselect=%d\n",
master->bus_num, master->num_chipselect);
"spi host registered: bus_num=%d num_chipselect=%d\n",
host->bus_num, host->num_chipselect);
return 0;
@ -917,7 +917,7 @@ err_ioremap:
err_no_iores:
err_no_pdata:
spi_master_put(hw->master);
spi_controller_put(hw->host);
err_nomem:
return err;
@ -927,8 +927,8 @@ static void au1550_spi_remove(struct platform_device *pdev)
{
struct au1550_spi *hw = platform_get_drvdata(pdev);
dev_info(&pdev->dev, "spi master remove: bus_num=%d\n",
hw->master->bus_num);
dev_info(&pdev->dev, "spi host remove: bus_num=%d\n",
hw->host->bus_num);
spi_bitbang_stop(&hw->bitbang);
free_irq(hw->irq, hw);
@ -941,7 +941,7 @@ static void au1550_spi_remove(struct platform_device *pdev)
au1xxx_dbdma_chan_free(hw->dma_tx_ch);
}
spi_master_put(hw->master);
spi_controller_put(hw->host);
}
/* work with hotplug and coldplug */