aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/spi/spi-dw-bt1.c8
-rw-r--r--drivers/spi/spi-dw-core.c138
-rw-r--r--drivers/spi/spi-dw-dma.c50
-rw-r--r--drivers/spi/spi-dw-mmio.c20
-rw-r--r--drivers/spi/spi-dw-pci.c59
-rw-r--r--drivers/spi/spi-dw.h145
6 files changed, 211 insertions, 209 deletions
diff --git a/drivers/spi/spi-dw-bt1.c b/drivers/spi/spi-dw-bt1.c
index ac7e4f30d1da..c06553416123 100644
--- a/drivers/spi/spi-dw-bt1.c
+++ b/drivers/spi/spi-dw-bt1.c
@@ -123,7 +123,7 @@ static ssize_t dw_spi_bt1_dirmap_read(struct spi_mem_dirmap_desc *desc,
len = min_t(size_t, len, dwsbt1->map_len - offs);
/* Collect the controller configuration required by the operation */
- cfg.tmode = SPI_TMOD_EPROMREAD;
+ cfg.tmode = DW_SPI_CTRLR0_TMOD_EPROMREAD;
cfg.dfs = 8;
cfg.ndf = 4;
cfg.freq = mem->spi->max_speed_hz;
@@ -131,13 +131,13 @@ static ssize_t dw_spi_bt1_dirmap_read(struct spi_mem_dirmap_desc *desc,
/* Make sure the corresponding CS is de-asserted on transmission */
dw_spi_set_cs(mem->spi, false);
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
dw_spi_update_config(dws, mem->spi, &cfg);
- spi_umask_intr(dws, SPI_INT_RXFI);
+ dw_spi_umask_intr(dws, DW_SPI_INT_RXFI);
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
/*
* Enable the transparent mode of the System Boot Controller.
diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c
index da6100fd185f..57bbffe6d6f9 100644
--- a/drivers/spi/spi-dw-core.c
+++ b/drivers/spi/spi-dw-core.c
@@ -24,7 +24,7 @@
#endif
/* Slave spi_device related */
-struct chip_data {
+struct dw_spi_chip_data {
u32 cr0;
u32 rx_sample_dly; /* RX sample delay */
};
@@ -109,7 +109,7 @@ void dw_spi_set_cs(struct spi_device *spi, bool enable)
EXPORT_SYMBOL_NS_GPL(dw_spi_set_cs, SPI_DW_CORE);
/* Return the max entries we can fill into tx fifo */
-static inline u32 tx_max(struct dw_spi *dws)
+static inline u32 dw_spi_tx_max(struct dw_spi *dws)
{
u32 tx_room, rxtx_gap;
@@ -129,14 +129,14 @@ static inline u32 tx_max(struct dw_spi *dws)
}
/* Return the max entries we should read out of rx fifo */
-static inline u32 rx_max(struct dw_spi *dws)
+static inline u32 dw_spi_rx_max(struct dw_spi *dws)
{
return min_t(u32, dws->rx_len, dw_readl(dws, DW_SPI_RXFLR));
}
static void dw_writer(struct dw_spi *dws)
{
- u32 max = tx_max(dws);
+ u32 max = dw_spi_tx_max(dws);
u32 txw = 0;
while (max--) {
@@ -157,7 +157,7 @@ static void dw_writer(struct dw_spi *dws)
static void dw_reader(struct dw_spi *dws)
{
- u32 max = rx_max(dws);
+ u32 max = dw_spi_rx_max(dws);
u32 rxw;
while (max--) {
@@ -186,24 +186,24 @@ int dw_spi_check_status(struct dw_spi *dws, bool raw)
else
irq_status = dw_readl(dws, DW_SPI_ISR);
- if (irq_status & SPI_INT_RXOI) {
+ if (irq_status & DW_SPI_INT_RXOI) {
dev_err(&dws->master->dev, "RX FIFO overflow detected\n");
ret = -EIO;
}
- if (irq_status & SPI_INT_RXUI) {
+ if (irq_status & DW_SPI_INT_RXUI) {
dev_err(&dws->master->dev, "RX FIFO underflow detected\n");
ret = -EIO;
}
- if (irq_status & SPI_INT_TXOI) {
+ if (irq_status & DW_SPI_INT_TXOI) {
dev_err(&dws->master->dev, "TX FIFO overflow detected\n");
ret = -EIO;
}
/* Generically handle the erroneous situation */
if (ret) {
- spi_reset_chip(dws);
+ dw_spi_reset_chip(dws);
if (dws->master->cur_msg)
dws->master->cur_msg->status = ret;
}
@@ -230,7 +230,7 @@ static irqreturn_t dw_spi_transfer_handler(struct dw_spi *dws)
*/
dw_reader(dws);
if (!dws->rx_len) {
- spi_mask_intr(dws, 0xff);
+ dw_spi_mask_intr(dws, 0xff);
spi_finalize_current_transfer(dws->master);
} else if (dws->rx_len <= dw_readl(dws, DW_SPI_RXFTLR)) {
dw_writel(dws, DW_SPI_RXFTLR, dws->rx_len - 1);
@@ -241,10 +241,10 @@ static irqreturn_t dw_spi_transfer_handler(struct dw_spi *dws)
* disabled after the data transmission is finished so not to
* have the TXE IRQ flood at the final stage of the transfer.
*/
- if (irq_status & SPI_INT_TXEI) {
+ if (irq_status & DW_SPI_INT_TXEI) {
dw_writer(dws);
if (!dws->tx_len)
- spi_mask_intr(dws, SPI_INT_TXEI);
+ dw_spi_mask_intr(dws, DW_SPI_INT_TXEI);
}
return IRQ_HANDLED;
@@ -260,7 +260,7 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
return IRQ_NONE;
if (!master->cur_msg) {
- spi_mask_intr(dws, 0xff);
+ dw_spi_mask_intr(dws, 0xff);
return IRQ_HANDLED;
}
@@ -271,37 +271,37 @@ static u32 dw_spi_prepare_cr0(struct dw_spi *dws, struct spi_device *spi)
{
u32 cr0 = 0;
- if (!(dws->caps & DW_SPI_CAP_DWC_SSI)) {
+ if (!(dws->caps & DW_SPI_CAP_DWC_HSSI)) {
/* CTRLR0[ 5: 4] Frame Format */
- cr0 |= SPI_FRF_MOTO_SPI << SPI_FRF_OFFSET;
+ cr0 |= DW_SPI_CTRLR0_FRF_MOTO_SPI << DW_PSSI_CTRLR0_FRF_OFFSET;
/*
* SPI mode (SCPOL|SCPH)
* CTRLR0[ 6] Serial Clock Phase
* CTRLR0[ 7] Serial Clock Polarity
*/
- cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << SPI_SCOL_OFFSET;
- cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << SPI_SCPH_OFFSET;
+ cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << DW_PSSI_CTRLR0_SCOL_OFFSET;
+ cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << DW_PSSI_CTRLR0_SCPH_OFFSET;
/* CTRLR0[11] Shift Register Loop */
- cr0 |= ((spi->mode & SPI_LOOP) ? 1 : 0) << SPI_SRL_OFFSET;
+ cr0 |= ((spi->mode & SPI_LOOP) ? 1 : 0) << DW_PSSI_CTRLR0_SRL_OFFSET;
} else {
/* CTRLR0[ 7: 6] Frame Format */
- cr0 |= SPI_FRF_MOTO_SPI << DWC_SSI_CTRLR0_FRF_OFFSET;
+ cr0 |= DW_SPI_CTRLR0_FRF_MOTO_SPI << DW_HSSI_CTRLR0_FRF_OFFSET;
/*
* SPI mode (SCPOL|SCPH)
* CTRLR0[ 8] Serial Clock Phase
* CTRLR0[ 9] Serial Clock Polarity
*/
- cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << DWC_SSI_CTRLR0_SCPOL_OFFSET;
- cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << DWC_SSI_CTRLR0_SCPH_OFFSET;
+ cr0 |= ((spi->mode & SPI_CPOL) ? 1 : 0) << DW_HSSI_CTRLR0_SCPOL_OFFSET;
+ cr0 |= ((spi->mode & SPI_CPHA) ? 1 : 0) << DW_HSSI_CTRLR0_SCPH_OFFSET;
/* CTRLR0[13] Shift Register Loop */
- cr0 |= ((spi->mode & SPI_LOOP) ? 1 : 0) << DWC_SSI_CTRLR0_SRL_OFFSET;
+ cr0 |= ((spi->mode & SPI_LOOP) ? 1 : 0) << DW_HSSI_CTRLR0_SRL_OFFSET;
if (dws->caps & DW_SPI_CAP_KEEMBAY_MST)
- cr0 |= DWC_SSI_CTRLR0_KEEMBAY_MST;
+ cr0 |= DW_HSSI_CTRLR0_KEEMBAY_MST;
}
return cr0;
@@ -310,7 +310,7 @@ static u32 dw_spi_prepare_cr0(struct dw_spi *dws, struct spi_device *spi)
void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
struct dw_spi_cfg *cfg)
{
- struct chip_data *chip = spi_get_ctldata(spi);
+ struct dw_spi_chip_data *chip = spi_get_ctldata(spi);
u32 cr0 = chip->cr0;
u32 speed_hz;
u16 clk_div;
@@ -318,16 +318,17 @@ void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
/* CTRLR0[ 4/3: 0] or CTRLR0[ 20: 16] Data Frame Size */
cr0 |= (cfg->dfs - 1) << dws->dfs_offset;
- if (!(dws->caps & DW_SPI_CAP_DWC_SSI))
+ if (!(dws->caps & DW_SPI_CAP_DWC_HSSI))
/* CTRLR0[ 9:8] Transfer Mode */
- cr0 |= cfg->tmode << SPI_TMOD_OFFSET;
+ cr0 |= cfg->tmode << DW_PSSI_CTRLR0_TMOD_OFFSET;
else
/* CTRLR0[11:10] Transfer Mode */
- cr0 |= cfg->tmode << DWC_SSI_CTRLR0_TMOD_OFFSET;
+ cr0 |= cfg->tmode << DW_HSSI_CTRLR0_TMOD_OFFSET;
dw_writel(dws, DW_SPI_CTRLR0, cr0);
- if (cfg->tmode == SPI_TMOD_EPROMREAD || cfg->tmode == SPI_TMOD_RO)
+ if (cfg->tmode == DW_SPI_CTRLR0_TMOD_EPROMREAD ||
+ cfg->tmode == DW_SPI_CTRLR0_TMOD_RO)
dw_writel(dws, DW_SPI_CTRLR1, cfg->ndf ? cfg->ndf - 1 : 0);
/* Note DW APB SSI clock divider doesn't support odd numbers */
@@ -335,7 +336,7 @@ void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
speed_hz = dws->max_freq / clk_div;
if (dws->current_freq != speed_hz) {
- spi_set_clk(dws, clk_div);
+ dw_spi_set_clk(dws, clk_div);
dws->current_freq = speed_hz;
}
@@ -363,9 +364,9 @@ static void dw_spi_irq_setup(struct dw_spi *dws)
dws->transfer_handler = dw_spi_transfer_handler;
- imask = SPI_INT_TXEI | SPI_INT_TXOI | SPI_INT_RXUI | SPI_INT_RXOI |
- SPI_INT_RXFI;
- spi_umask_intr(dws, imask);
+ imask = DW_SPI_INT_TXEI | DW_SPI_INT_TXOI |
+ DW_SPI_INT_RXUI | DW_SPI_INT_RXOI | DW_SPI_INT_RXFI;
+ dw_spi_umask_intr(dws, imask);
}
/*
@@ -405,11 +406,12 @@ static int dw_spi_poll_transfer(struct dw_spi *dws,
}
static int dw_spi_transfer_one(struct spi_controller *master,
- struct spi_device *spi, struct spi_transfer *transfer)
+ struct spi_device *spi,
+ struct spi_transfer *transfer)
{
struct dw_spi *dws = spi_controller_get_devdata(master);
struct dw_spi_cfg cfg = {
- .tmode = SPI_TMOD_TR,
+ .tmode = DW_SPI_CTRLR0_TMOD_TR,
.dfs = transfer->bits_per_word,
.freq = transfer->speed_hz,
};
@@ -425,7 +427,7 @@ static int dw_spi_transfer_one(struct spi_controller *master,
/* Ensure the data above is visible for all CPUs */
smp_mb();
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
dw_spi_update_config(dws, spi, &cfg);
@@ -436,7 +438,7 @@ static int dw_spi_transfer_one(struct spi_controller *master,
dws->dma_mapped = master->cur_msg_mapped;
/* For poll mode just disable all interrupts */
- spi_mask_intr(dws, 0xff);
+ dw_spi_mask_intr(dws, 0xff);
if (dws->dma_mapped) {
ret = dws->dma_ops->dma_setup(dws, transfer);
@@ -444,7 +446,7 @@ static int dw_spi_transfer_one(struct spi_controller *master,
return ret;
}
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
if (dws->dma_mapped)
return dws->dma_ops->dma_transfer(dws, transfer);
@@ -457,20 +459,20 @@ static int dw_spi_transfer_one(struct spi_controller *master,
}
static void dw_spi_handle_err(struct spi_controller *master,
- struct spi_message *msg)
+ struct spi_message *msg)
{
struct dw_spi *dws = spi_controller_get_devdata(master);
if (dws->dma_mapped)
dws->dma_ops->dma_stop(dws);
- spi_reset_chip(dws);
+ dw_spi_reset_chip(dws);
}
static int dw_spi_adjust_mem_op_size(struct spi_mem *mem, struct spi_mem_op *op)
{
if (op->data.dir == SPI_MEM_DATA_IN)
- op->data.nbytes = clamp_val(op->data.nbytes, 0, SPI_NDF_MASK + 1);
+ op->data.nbytes = clamp_val(op->data.nbytes, 0, DW_SPI_NDF_MASK + 1);
return 0;
}
@@ -498,7 +500,7 @@ static int dw_spi_init_mem_buf(struct dw_spi *dws, const struct spi_mem_op *op)
if (op->data.dir == SPI_MEM_DATA_OUT)
len += op->data.nbytes;
- if (len <= SPI_BUF_SIZE) {
+ if (len <= DW_SPI_BUF_SIZE) {
out = dws->buf;
} else {
out = kzalloc(len, GFP_KERNEL);
@@ -512,9 +514,9 @@ static int dw_spi_init_mem_buf(struct dw_spi *dws, const struct spi_mem_op *op)
* single buffer in order to speed the data transmission up.
*/
for (i = 0; i < op->cmd.nbytes; ++i)
- out[i] = SPI_GET_BYTE(op->cmd.opcode, op->cmd.nbytes - i - 1);
+ out[i] = DW_SPI_GET_BYTE(op->cmd.opcode, op->cmd.nbytes - i - 1);
for (j = 0; j < op->addr.nbytes; ++i, ++j)
- out[i] = SPI_GET_BYTE(op->addr.val, op->addr.nbytes - j - 1);
+ out[i] = DW_SPI_GET_BYTE(op->addr.val, op->addr.nbytes - j - 1);
for (j = 0; j < op->dummy.nbytes; ++i, ++j)
out[i] = 0x0;
@@ -587,7 +589,7 @@ static int dw_spi_write_then_read(struct dw_spi *dws, struct spi_device *spi)
entries = readl_relaxed(dws->regs + DW_SPI_RXFLR);
if (!entries) {
sts = readl_relaxed(dws->regs + DW_SPI_RISR);
- if (sts & SPI_INT_RXOI) {
+ if (sts & DW_SPI_INT_RXOI) {
dev_err(&dws->master->dev, "FIFO overflow on Rx\n");
return -EIO;
}
@@ -603,12 +605,12 @@ static int dw_spi_write_then_read(struct dw_spi *dws, struct spi_device *spi)
static inline bool dw_spi_ctlr_busy(struct dw_spi *dws)
{
- return dw_readl(dws, DW_SPI_SR) & SR_BUSY;
+ return dw_readl(dws, DW_SPI_SR) & DW_SPI_SR_BUSY;
}
static int dw_spi_wait_mem_op_done(struct dw_spi *dws)
{
- int retry = SPI_WAIT_RETRIES;
+ int retry = DW_SPI_WAIT_RETRIES;
struct spi_delay delay;
unsigned long ns, us;
u32 nents;
@@ -638,9 +640,9 @@ static int dw_spi_wait_mem_op_done(struct dw_spi *dws)
static void dw_spi_stop_mem_op(struct dw_spi *dws, struct spi_device *spi)
{
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
dw_spi_set_cs(spi, true);
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
}
/*
@@ -673,19 +675,19 @@ static int dw_spi_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op)
cfg.dfs = 8;
cfg.freq = clamp(mem->spi->max_speed_hz, 0U, dws->max_mem_freq);
if (op->data.dir == SPI_MEM_DATA_IN) {
- cfg.tmode = SPI_TMOD_EPROMREAD;
+ cfg.tmode = DW_SPI_CTRLR0_TMOD_EPROMREAD;
cfg.ndf = op->data.nbytes;
} else {
- cfg.tmode = SPI_TMOD_TO;
+ cfg.tmode = DW_SPI_CTRLR0_TMOD_TO;
}
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
dw_spi_update_config(dws, mem->spi, &cfg);
- spi_mask_intr(dws, 0xff);
+ dw_spi_mask_intr(dws, 0xff);
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
/*
* DW APB SSI controller has very nasty peculiarities. First originally
@@ -768,7 +770,7 @@ static void dw_spi_init_mem_ops(struct dw_spi *dws)
static int dw_spi_setup(struct spi_device *spi)
{
struct dw_spi *dws = spi_controller_get_devdata(spi->controller);
- struct chip_data *chip;
+ struct dw_spi_chip_data *chip;
/* Only alloc on first setup */
chip = spi_get_ctldata(spi);
@@ -776,7 +778,7 @@ static int dw_spi_setup(struct spi_device *spi)
struct dw_spi *dws = spi_controller_get_devdata(spi->controller);
u32 rx_sample_dly_ns;
- chip = kzalloc(sizeof(struct chip_data), GFP_KERNEL);
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
spi_set_ctldata(spi, chip);
@@ -803,16 +805,16 @@ static int dw_spi_setup(struct spi_device *spi)
static void dw_spi_cleanup(struct spi_device *spi)
{
- struct chip_data *chip = spi_get_ctldata(spi);
+ struct dw_spi_chip_data *chip = spi_get_ctldata(spi);
kfree(chip);
spi_set_ctldata(spi, NULL);
}
/* Restart the controller, disable all interrupts, clean rx fifo */
-static void spi_hw_init(struct device *dev, struct dw_spi *dws)
+static void dw_spi_hw_init(struct device *dev, struct dw_spi *dws)
{
- spi_reset_chip(dws);
+ dw_spi_reset_chip(dws);
/*
* Try to detect the FIFO depth if not set by interface driver,
@@ -837,18 +839,18 @@ static void spi_hw_init(struct device *dev, struct dw_spi *dws)
* writability. Note DWC SSI controller also has the extended DFS, but
* with zero offset.
*/
- if (!(dws->caps & DW_SPI_CAP_DWC_SSI)) {
+ if (!(dws->caps & DW_SPI_CAP_DWC_HSSI)) {
u32 cr0, tmp = dw_readl(dws, DW_SPI_CTRLR0);
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
dw_writel(dws, DW_SPI_CTRLR0, 0xffffffff);
cr0 = dw_readl(dws, DW_SPI_CTRLR0);
dw_writel(dws, DW_SPI_CTRLR0, tmp);
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
- if (!(cr0 & SPI_DFS_MASK)) {
+ if (!(cr0 & DW_PSSI_CTRLR0_DFS_MASK)) {
dws->caps |= DW_SPI_CAP_DFS32;
- dws->dfs_offset = SPI_DFS32_OFFSET;
+ dws->dfs_offset = DW_PSSI_CTRLR0_DFS32_OFFSET;
dev_dbg(dev, "Detected 32-bits max data frame size\n");
}
} else {
@@ -878,7 +880,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
spi_controller_set_devdata(master, dws);
/* Basic HW init */
- spi_hw_init(dev, dws);
+ dw_spi_hw_init(dev, dws);
ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED, dev_name(dev),
master);
@@ -939,7 +941,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
err_dma_exit:
if (dws->dma_ops && dws->dma_ops->dma_exit)
dws->dma_ops->dma_exit(dws);
- spi_enable_chip(dws, 0);
+ dw_spi_enable_chip(dws, 0);
free_irq(dws->irq, master);
err_free_master:
spi_controller_put(master);
@@ -956,7 +958,7 @@ void dw_spi_remove_host(struct dw_spi *dws)
if (dws->dma_ops && dws->dma_ops->dma_exit)
dws->dma_ops->dma_exit(dws);
- spi_shutdown_chip(dws);
+ dw_spi_shutdown_chip(dws);
free_irq(dws->irq, dws->master);
}
@@ -970,14 +972,14 @@ int dw_spi_suspend_host(struct dw_spi *dws)
if (ret)
return ret;
- spi_shutdown_chip(dws);
+ dw_spi_shutdown_chip(dws);
return 0;
}
EXPORT_SYMBOL_NS_GPL(dw_spi_suspend_host, SPI_DW_CORE);
int dw_spi_resume_host(struct dw_spi *dws)
{
- spi_hw_init(&dws->master->dev, dws);
+ dw_spi_hw_init(&dws->master->dev, dws);
return spi_controller_resume(dws->master);
}
EXPORT_SYMBOL_NS_GPL(dw_spi_resume_host, SPI_DW_CORE);
diff --git a/drivers/spi/spi-dw-dma.c b/drivers/spi/spi-dw-dma.c
index ca199eee0f13..63e5260100ec 100644
--- a/drivers/spi/spi-dw-dma.c
+++ b/drivers/spi/spi-dw-dma.c
@@ -18,10 +18,10 @@
#include "spi-dw.h"
-#define RX_BUSY 0
-#define RX_BURST_LEVEL 16
-#define TX_BUSY 1
-#define TX_BURST_LEVEL 16
+#define DW_SPI_RX_BUSY 0
+#define DW_SPI_RX_BURST_LEVEL 16
+#define DW_SPI_TX_BUSY 1
+#define DW_SPI_TX_BURST_LEVEL 16
static bool dw_spi_dma_chan_filter(struct dma_chan *chan, void *param)
{
@@ -46,7 +46,7 @@ static void dw_spi_dma_maxburst_init(struct dw_spi *dws)
if (!ret && caps.max_burst)
max_burst = caps.max_burst;
else
- max_burst = RX_BURST_LEVEL;
+ max_burst = DW_SPI_RX_BURST_LEVEL;
dws->rxburst = min(max_burst, def_burst);
dw_writel(dws, DW_SPI_DMARDLR, dws->rxburst - 1);
@@ -55,7 +55,7 @@ static void dw_spi_dma_maxburst_init(struct dw_spi *dws)
if (!ret && caps.max_burst)
max_burst = caps.max_burst;
else
- max_burst = TX_BURST_LEVEL;
+ max_burst = DW_SPI_TX_BURST_LEVEL;
/*
* Having a Rx DMA channel serviced with higher priority than a Tx DMA
@@ -227,13 +227,13 @@ static int dw_spi_dma_wait(struct dw_spi *dws, unsigned int len, u32 speed)
static inline bool dw_spi_dma_tx_busy(struct dw_spi *dws)
{
- return !(dw_readl(dws, DW_SPI_SR) & SR_TF_EMPT);
+ return !(dw_readl(dws, DW_SPI_SR) & DW_SPI_SR_TF_EMPT);
}
static int dw_spi_dma_wait_tx_done(struct dw_spi *dws,
struct spi_transfer *xfer)
{
- int retry = SPI_WAIT_RETRIES;
+ int retry = DW_SPI_WAIT_RETRIES;
struct spi_delay delay;
u32 nents;
@@ -260,8 +260,8 @@ static void dw_spi_dma_tx_done(void *arg)
{
struct dw_spi *dws = arg;
- clear_bit(TX_BUSY, &dws->dma_chan_busy);
- if (test_bit(RX_BUSY, &dws->dma_chan_busy))
+ clear_bit(DW_SPI_TX_BUSY, &dws->dma_chan_busy);
+ if (test_bit(DW_SPI_RX_BUSY, &dws->dma_chan_busy))
return;
complete(&dws->dma_completion);
@@ -305,19 +305,19 @@ static int dw_spi_dma_submit_tx(struct dw_spi *dws, struct scatterlist *sgl,
return ret;
}
- set_bit(TX_BUSY, &dws->dma_chan_busy);
+ set_bit(DW_SPI_TX_BUSY, &dws->dma_chan_busy);
return 0;
}
static inline bool dw_spi_dma_rx_busy(struct dw_spi *dws)
{
- return !!(dw_readl(dws, DW_SPI_SR) & SR_RF_NOT_EMPT);
+ return !!(dw_readl(dws, DW_SPI_SR) & DW_SPI_SR_RF_NOT_EMPT);
}
static int dw_spi_dma_wait_rx_done(struct dw_spi *dws)
{
- int retry = SPI_WAIT_RETRIES;
+ int retry = DW_SPI_WAIT_RETRIES;
struct spi_delay delay;
unsigned long ns, us;
u32 nents;
@@ -361,8 +361,8 @@ static void dw_spi_dma_rx_done(void *arg)
{
struct dw_spi *dws = arg;
- clear_bit(RX_BUSY, &dws->dma_chan_busy);
- if (test_bit(TX_BUSY, &dws->dma_chan_busy))
+ clear_bit(DW_SPI_RX_BUSY, &dws->dma_chan_busy);
+ if (test_bit(DW_SPI_TX_BUSY, &dws->dma_chan_busy))
return;
complete(&dws->dma_completion);
@@ -406,7 +406,7 @@ static int dw_spi_dma_submit_rx(struct dw_spi *dws, struct scatterlist *sgl,
return ret;
}
- set_bit(RX_BUSY, &dws->dma_chan_busy);
+ set_bit(DW_SPI_RX_BUSY, &dws->dma_chan_busy);
return 0;
}
@@ -431,16 +431,16 @@ static int dw_spi_dma_setup(struct dw_spi *dws, struct spi_transfer *xfer)
}
/* Set the DMA handshaking interface */
- dma_ctrl = SPI_DMA_TDMAE;
+ dma_ctrl = DW_SPI_DMACR_TDMAE;
if (xfer->rx_buf)
- dma_ctrl |= SPI_DMA_RDMAE;
+ dma_ctrl |= DW_SPI_DMACR_RDMAE;
dw_writel(dws, DW_SPI_DMACR, dma_ctrl);
/* Set the interrupt mask */
- imr = SPI_INT_TXOI;
+ imr = DW_SPI_INT_TXOI;
if (xfer->rx_buf)
- imr |= SPI_INT_RXUI | SPI_INT_RXOI;
- spi_umask_intr(dws, imr);
+ imr |= DW_SPI_INT_RXUI | DW_SPI_INT_RXOI;
+ dw_spi_umask_intr(dws, imr);
reinit_completion(&dws->dma_completion);
@@ -616,13 +616,13 @@ static int dw_spi_dma_transfer(struct dw_spi *dws, struct spi_transfer *xfer)
static void dw_spi_dma_stop(struct dw_spi *dws)
{
- if (test_bit(TX_BUSY, &dws->dma_chan_busy)) {
+ if (test_bit(DW_SPI_TX_BUSY, &dws->dma_chan_busy)) {
dmaengine_terminate_sync(dws->txchan);
- clear_bit(TX_BUSY, &dws->dma_chan_busy);
+ clear_bit(DW_SPI_TX_BUSY, &dws->dma_chan_busy);
}
- if (test_bit(RX_BUSY, &dws->dma_chan_busy)) {
+ if (test_bit(DW_SPI_RX_BUSY, &dws->dma_chan_busy)) {
dmaengine_terminate_sync(dws->rxchan);
- clear_bit(RX_BUSY, &dws->dma_chan_busy);
+ clear_bit(DW_SPI_RX_BUSY, &dws->dma_chan_busy);
}
}
diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index c3bacd5a2843..2193c2550e74 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -196,18 +196,18 @@ static int dw_spi_alpine_init(struct platform_device *pdev,
return 0;
}
-static int dw_spi_dw_apb_init(struct platform_device *pdev,
- struct dw_spi_mmio *dwsmmio)
+static int dw_spi_pssi_init(struct platform_device *pdev,
+ struct dw_spi_mmio *dwsmmio)
{
dw_spi_dma_setup_generic(&dwsmmio->dws);
return 0;
}
-static int dw_spi_dwc_ssi_init(struct platform_device *pdev,
- struct dw_spi_mmio *dwsmmio)
+static int dw_spi_hssi_init(struct platform_device *pdev,
+ struct dw_spi_mmio *dwsmmio)
{
- dwsmmio->dws.caps = DW_SPI_CAP_DWC_SSI;
+ dwsmmio->dws.caps = DW_SPI_CAP_DWC_HSSI;
dw_spi_dma_setup_generic(&dwsmmio->dws);
@@ -217,7 +217,7 @@ static int dw_spi_dwc_ssi_init(struct platform_device *pdev,
static int dw_spi_keembay_init(struct platform_device *pdev,
struct dw_spi_mmio *dwsmmio)
{
- dwsmmio->dws.caps = DW_SPI_CAP_KEEMBAY_MST | DW_SPI_CAP_DWC_SSI;
+ dwsmmio->dws.caps = DW_SPI_CAP_KEEMBAY_MST | DW_SPI_CAP_DWC_HSSI;
return 0;
}
@@ -342,12 +342,12 @@ static int dw_spi_mmio_remove(struct platform_device *pdev)
}
static const struct of_device_id dw_spi_mmio_of_match[] = {
- { .compatible = "snps,dw-apb-ssi", .data = dw_spi_dw_apb_init},
+ { .compatible = "snps,dw-apb-ssi", .data = dw_spi_pssi_init},
{ .compatible = "mscc,ocelot-spi", .data = dw_spi_mscc_ocelot_init},
{ .compatible = "mscc,jaguar2-spi", .data = dw_spi_mscc_jaguar2_init},
{ .compatible = "amazon,alpine-dw-apb-ssi", .data = dw_spi_alpine_init},
- { .compatible = "renesas,rzn1-spi", .data = dw_spi_dw_apb_init},
- { .compatible = "snps,dwc-ssi-1.01a", .data = dw_spi_dwc_ssi_init},
+ { .compatible = "renesas,rzn1-spi", .data = dw_spi_pssi_init},
+ { .compatible = "snps,dwc-ssi-1.01a", .data = dw_spi_hssi_init},
{ .compatible = "intel,keembay-ssi", .data = dw_spi_keembay_init},
{ .compatible = "microchip,sparx5-spi", dw_spi_mscc_sparx5_init},
{ .compatible = "canaan,k210-spi", dw_spi_canaan_k210_init},
@@ -357,7 +357,7 @@ MODULE_DEVICE_TABLE(of, dw_spi_mmio_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id dw_spi_mmio_acpi_match[] = {
- {"HISI0173", (kernel_ulong_t)dw_spi_dw_apb_init},
+ {"HISI0173", (kernel_ulong_t)dw_spi_pssi_init},
{},
};
MODULE_DEVICE_TABLE(acpi, dw_spi_mmio_acpi_match);
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 5552240fee55..7c8279d13f31 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -24,14 +24,14 @@
#define CLK_SPI_CDIV_MASK 0x00000e00
#define CLK_SPI_DISABLE_OFFSET 8
-struct spi_pci_desc {
+struct dw_spi_pci_desc {
int (*setup)(struct dw_spi *);
u16 num_cs;
u16 bus_num;
u32 max_freq;
};
-static int spi_mid_init(struct dw_spi *dws)
+static int dw_spi_pci_mid_init(struct dw_spi *dws)
{
void __iomem *clk_reg;
u32 clk_cdiv;
@@ -53,36 +53,36 @@ static int spi_mid_init(struct dw_spi *dws)
return 0;
}
-static int spi_generic_init(struct dw_spi *dws)
+static int dw_spi_pci_generic_init(struct dw_spi *dws)
{
dw_spi_dma_setup_generic(dws);
return 0;
}
-static struct spi_pci_desc spi_pci_mid_desc_1 = {
- .setup = spi_mid_init,
+static struct dw_spi_pci_desc dw_spi_pci_mid_desc_1 = {
+ .setup = dw_spi_pci_mid_init,
.num_cs = 5,
.bus_num = 0,
};
-static struct spi_pci_desc spi_pci_mid_desc_2 = {
- .setup = spi_mid_init,
+static struct dw_spi_pci_desc dw_spi_pci_mid_desc_2 = {
+ .setup = dw_spi_pci_mid_init,
.num_cs = 2,
.bus_num = 1,
};
-static struct spi_pci_desc spi_pci_ehl_desc = {
- .setup = spi_generic_init,
+static struct dw_spi_pci_desc dw_spi_pci_ehl_desc = {
+ .setup = dw_spi_pci_generic_init,
.num_cs = 2,
.bus_num = -1,
.max_freq = 100000000,
};
-static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int dw_spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ struct dw_spi_pci_desc *desc = (struct dw_spi_pci_desc *)ent->driver_data;
struct dw_spi *dws;
- struct spi_pci_desc *desc = (struct spi_pci_desc *)ent->driver_data;
int pci_bar = 0;
int ret;
@@ -150,7 +150,7 @@ err_free_irq_vectors:
return ret;
}
-static void spi_pci_remove(struct pci_dev *pdev)
+static void dw_spi_pci_remove(struct pci_dev *pdev)
{
struct dw_spi *dws = pci_get_drvdata(pdev);
@@ -162,14 +162,14 @@ static void spi_pci_remove(struct pci_dev *pdev)
}
#ifdef CONFIG_PM_SLEEP
-static int spi_suspend(struct device *dev)
+static int dw_spi_pci_suspend(struct device *dev)
{
struct dw_spi *dws = dev_get_drvdata(dev);
return dw_spi_suspend_host(dws);
}
-static int spi_resume(struct device *dev)
+static int dw_spi_pci_resume(struct device *dev)
{
struct dw_spi *dws = dev_get_drvdata(dev);
@@ -177,38 +177,37 @@ static int spi_resume(struct device *dev)
}
#endif
-static SIMPLE_DEV_PM_OPS(dw_spi_pm_ops, spi_suspend, spi_resume);
+static SIMPLE_DEV_PM_OPS(dw_spi_pci_pm_ops, dw_spi_pci_suspend, dw_spi_pci_resume);
-static const struct pci_device_id pci_ids[] = {
+static const struct pci_device_id dw_spi_pci_ids[] = {
/* Intel MID platform SPI controller 0 */
/*
* The access to the device 8086:0801 is disabled by HW, since it's
* exclusively used by SCU to communicate with MSIC.
*/
/* Intel MID platform SPI controller 1 */
- { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&spi_pci_mid_desc_1},
+ { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&dw_spi_pci_mid_desc_1},
/* Intel MID platform SPI controller 2 */
- { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&spi_pci_mid_desc_2},
+ { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&dw_spi_pci_mid_desc_2},
/* Intel Elkhart Lake PSE SPI controllers */
- { PCI_VDEVICE(INTEL, 0x4b84), (kernel_ulong_t)&spi_pci_ehl_desc},
- { PCI_VDEVICE(INTEL, 0x4b85), (kernel_ulong_t)&spi_pci_ehl_desc},
- { PCI_VDEVICE(INTEL, 0x4b86), (kernel_ulong_t)&spi_pci_ehl_desc},
- { PCI_VDEVICE(INTEL, 0x4b87), (kernel_ulong_t)&spi_pci_ehl_desc},
+ { PCI_VDEVICE(INTEL, 0x4b84), (kernel_ulong_t)&dw_spi_pci_ehl_desc},
+ { PCI_VDEVICE(INTEL, 0x4b85), (kernel_ulong_t)&dw_spi_pci_ehl_desc},
+ { PCI_VDEVICE(INTEL, 0x4b86), (kernel_ulong_t)&dw_spi_pci_ehl_desc},
+ { PCI_VDEVICE(INTEL, 0x4b87), (kernel_ulong_t)&dw_spi_pci_ehl_desc},
{},
};
-MODULE_DEVICE_TABLE(pci, pci_ids);
+MODULE_DEVICE_TABLE(pci, dw_spi_pci_ids);
-static struct pci_driver dw_spi_driver = {
+static struct pci_driver dw_spi_pci_driver = {
.name = DRIVER_NAME,
- .id_table = pci_ids,
- .probe = spi_pci_probe,
- .remove = spi_pci_remove,
+ .id_table = dw_spi_pci_ids,
+ .probe = dw_spi_pci_probe,
+ .remove = dw_spi_pci_remove,
.driver = {
- .pm = &dw_spi_pm_ops,
+ .pm = &dw_spi_pci_pm_ops,
},
};
-
-module_pci_driver(dw_spi_driver);
+module_pci_driver(dw_spi_pci_driver);
MODULE_AUTHOR("Feng Tang <feng.tang@intel.com>");
MODULE_DESCRIPTION("PCI interface driver for DW SPI Core");
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 467c342bfe56..893b78c43a50 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef DW_SPI_HEADER_H
-#define DW_SPI_HEADER_H
+#ifndef __SPI_DW_H__
+#define __SPI_DW_H__
#include <linux/bits.h>
#include <linux/completion.h>
@@ -11,7 +11,7 @@
#include <linux/spi/spi-mem.h>
#include <linux/bitfield.h>
-/* Register offsets */
+/* Register offsets (Generic for both DWC APB SSI and DWC SSI IP-cores) */
#define DW_SPI_CTRLR0 0x00
#define DW_SPI_CTRLR1 0x04
#define DW_SPI_SSIENR 0x08
@@ -40,84 +40,85 @@
#define DW_SPI_RX_SAMPLE_DLY 0xf0
#define DW_SPI_CS_OVERRIDE 0xf4
-/* Bit fields in CTRLR0 */
-#define SPI_DFS_OFFSET 0
-#define SPI_DFS_MASK GENMASK(3, 0)
-#define SPI_DFS32_OFFSET 16
-
-#define SPI_FRF_OFFSET 4
-#define SPI_FRF_MOTO_SPI 0x0
-#define SPI_FRF_TI_SSP 0x1
-#define SPI_FRF_NS_MICROWIRE 0x2
-#define SPI_FRF_RESV 0x3
-
-#define SPI_MODE_OFFSET 6
-#define SPI_SCPH_OFFSET 6
-#define SPI_SCOL_OFFSET 7
-
-#define SPI_TMOD_OFFSET 8
-#define SPI_TMOD_MASK (0x3 << SPI_TMOD_OFFSET)
-#define SPI_TMOD_TR 0x0 /* xmit & recv */
-#define SPI_TMOD_TO 0x1 /* xmit only */
-#define SPI_TMOD_RO 0x2 /* recv only */
-#define SPI_TMOD_EPROMREAD 0x3 /* eeprom read mode */
-
-#define SPI_SLVOE_OFFSET 10
-#define SPI_SRL_OFFSET 11
-#define SPI_CFS_OFFSET 12
-
-/* Bit fields in CTRLR0 based on DWC_ssi_databook.pdf v1.01a */
-#define DWC_SSI_CTRLR0_SRL_OFFSET 13
-#define DWC_SSI_CTRLR0_TMOD_OFFSET 10
-#define DWC_SSI_CTRLR0_TMOD_MASK GENMASK(11, 10)
-#define DWC_SSI_CTRLR0_SCPOL_OFFSET 9
-#define DWC_SSI_CTRLR0_SCPH_OFFSET 8
-#define DWC_SSI_CTRLR0_FRF_OFFSET 6
-#define DWC_SSI_CTRLR0_DFS_OFFSET 0
+/* Bit fields in CTRLR0 (DWC APB SSI) */
+#define DW_PSSI_CTRLR0_DFS_OFFSET 0
+#define DW_PSSI_CTRLR0_DFS_MASK GENMASK(3, 0)
+#define DW_PSSI_CTRLR0_DFS32_OFFSET 16
+
+#define DW_PSSI_CTRLR0_FRF_OFFSET 4
+#define DW_SPI_CTRLR0_FRF_MOTO_SPI 0x0
+#define DW_SPI_CTRLR0_FRF_TI_SSP 0x1
+#define DW_SPI_CTRLR0_FRF_NS_MICROWIRE 0x2
+#define DW_SPI_CTRLR0_FRF_RESV 0x3
+
+#define DW_PSSI_CTRLR0_MODE_OFFSET 6
+#define DW_PSSI_CTRLR0_SCPH_OFFSET 6
+#define DW_PSSI_CTRLR0_SCOL_OFFSET 7
+
+#define DW_PSSI_CTRLR0_TMOD_OFFSET 8
+#define DW_PSSI_CTRLR0_TMOD_MASK (0x3 << DW_PSSI_CTRLR0_TMOD_OFFSET)
+#define DW_SPI_CTRLR0_TMOD_TR 0x0 /* xmit & recv */
+#define DW_SPI_CTRLR0_TMOD_TO 0x1 /* xmit only */
+#define DW_SPI_CTRLR0_TMOD_RO 0x2 /* recv only */
+#define DW_SPI_CTRLR0_TMOD_EPROMREAD 0x3 /* eeprom read mode */
+
+#define DW_PSSI_CTRLR0_SLVOE_OFFSET 10
+#define DW_PSSI_CTRLR0_SRL_OFFSET 11
+#define DW_PSSI_CTRLR0_CFS_OFFSET 12
+
+/* Bit fields in CTRLR0 (DWC SSI with AHB interface) */
+#define DW_HSSI_CTRLR0_SRL_OFFSET 13
+#define DW_HSSI_CTRLR0_TMOD_OFFSET 10
+#define DW_HSSI_CTRLR0_TMOD_MASK GENMASK(11, 10)
+#define DW_HSSI_CTRLR0_SCPOL_OFFSET 9
+#define DW_HSSI_CTRLR0_SCPH_OFFSET 8
+#define DW_HSSI_CTRLR0_FRF_OFFSET 6
+#define DW_HSSI_CTRLR0_DFS_OFFSET 0
/*
* For Keem Bay, CTRLR0[31] is used to select controller mode.
* 0: SSI is slave
* 1: SSI is master
*/
-#define DWC_SSI_CTRLR0_KEEMBAY_MST BIT(31)
+#define DW_HSSI_CTRLR0_KEEMBAY_MST BIT(31)
/* Bit fields in CTRLR1 */
-#define SPI_NDF_MASK GENMASK(15, 0)
+#define DW_SPI_NDF_MASK GENMASK(15, 0)
/* Bit fields in SR, 7 bits */
-#define SR_MASK 0x7f /* cover 7 bits */
-#define SR_BUSY (1 << 0)
-#define SR_TF_NOT_FULL (1 << 1)
-#define SR_TF_EMPT (1 << 2)
-#define SR_RF_NOT_EMPT (1 << 3)
-#define SR_RF_FULL (1 << 4)
-#define SR_TX_ERR (1 << 5)
-#define SR_DCOL (1 << 6)
+#define DW_SPI_SR_MASK 0x7f /* cover 7 bits */
+#define DW_SPI_SR_BUSY (1 << 0)
+#define DW_SPI_SR_TF_NOT_FULL (1 << 1)
+#define DW_SPI_SR_TF_EMPT (1 << 2)
+#define DW_SPI_SR_RF_NOT_EMPT (1 << 3)
+#define DW_SPI_SR_RF_FULL (1 << 4)
+#define DW_SPI_SR_TX_ERR (1 << 5)
+#define DW_SPI_SR_DCOL (1 << 6)
/* Bit fields in ISR, IMR, RISR, 7 bits */
-#define SPI_INT_TXEI (1 << 0)
-#define SPI_INT_TXOI (1 << 1)
-#define SPI_INT_RXUI (1 << 2)
-#define SPI_INT_RXOI (1 << 3)
-#define SPI_INT_RXFI (1 << 4)
-#define SPI_INT_MSTI (1 << 5)
+#define DW_SPI_INT_TXEI (1 << 0)
+#define DW_SPI_INT_TXOI (1 << 1)
+#define DW_SPI_INT_RXUI (1 << 2)
+#define DW_SPI_INT_RXOI (1 << 3)
+#define DW_SPI_INT_RXFI (1 << 4)
+#define DW_SPI_INT_MSTI (1 << 5)
/* Bit fields in DMACR */
-#define SPI_DMA_RDMAE (1 << 0)
-#define SPI_DMA_TDMAE (1 << 1)
+#define DW_SPI_DMACR_RDMAE (1 << 0)
+#define DW_SPI_DMACR_TDMAE (1 << 1)
-#define SPI_WAIT_RETRIES 5
-#define SPI_BUF_SIZE \
+/* Mem/DMA operations helpers */
+#define DW_SPI_WAIT_RETRIES 5
+#define DW_SPI_BUF_SIZE \
(sizeof_field(struct spi_mem_op, cmd.opcode) + \
sizeof_field(struct spi_mem_op, addr.val) + 256)
-#define SPI_GET_BYTE(_val, _idx) \
+#define DW_SPI_GET_BYTE(_val, _idx) \
((_val) >> (BITS_PER_BYTE * (_idx)) & 0xff)
/* DW SPI capabilities */
#define DW_SPI_CAP_CS_OVERRIDE BIT(0)
#define DW_SPI_CAP_KEEMBAY_MST BIT(1)
-#define DW_SPI_CAP_DWC_SSI BIT(2)
+#define DW_SPI_CAP_DWC_HSSI BIT(2)
#define DW_SPI_CAP_DFS32 BIT(3)
/* Slave spi_transfer/spi_mem_op related */
@@ -162,7 +163,7 @@ struct dw_spi {
unsigned int tx_len;
void *rx;
unsigned int rx_len;
- u8 buf[SPI_BUF_SIZE];
+ u8 buf[DW_SPI_BUF_SIZE];
int dma_mapped;
u8 n_bytes; /* current is a 1/2 bytes op */
irqreturn_t (*transfer_handler)(struct dw_spi *dws);
@@ -224,18 +225,18 @@ static inline void dw_write_io_reg(struct dw_spi *dws, u32 offset, u32 val)
}
}
-static inline void spi_enable_chip(struct dw_spi *dws, int enable)
+static inline void dw_spi_enable_chip(struct dw_spi *dws, int enable)
{
dw_writel(dws, DW_SPI_SSIENR, (enable ? 1 : 0));
}
-static inline void spi_set_clk(struct dw_spi *dws, u16 div)
+static inline void dw_spi_set_clk(struct dw_spi *dws, u16 div)
{
dw_writel(dws, DW_SPI_BAUDR, div);
}
/* Disable IRQ bits */
-static inline void spi_mask_intr(struct dw_spi *dws, u32 mask)
+static inline void dw_spi_mask_intr(struct dw_spi *dws, u32 mask)
{
u32 new_mask;
@@ -244,7 +245,7 @@ static inline void spi_mask_intr(struct dw_spi *dws, u32 mask)
}
/* Enable IRQ bits */
-static inline void spi_umask_intr(struct dw_spi *dws, u32 mask)
+static inline void dw_spi_umask_intr(struct dw_spi *dws, u32 mask)
{
u32 new_mask;
@@ -257,19 +258,19 @@ static inline void spi_umask_intr(struct dw_spi *dws, u32 mask)
* and CS, then re-enables the controller back. Transmit and receive FIFO
* buffers are cleared when the device is disabled.
*/
-static inline void spi_reset_chip(struct dw_spi *dws)
+static inline void dw_spi_reset_chip(struct dw_spi *dws)
{
- spi_enable_chip(dws, 0);
- spi_mask_intr(dws, 0xff);
+ dw_spi_enable_chip(dws, 0);
+ dw_spi_mask_intr(dws, 0xff);
dw_readl(dws, DW_SPI_ICR);
dw_writel(dws, DW_SPI_SER, 0);
- spi_enable_chip(dws, 1);
+ dw_spi_enable_chip(dws, 1);
}
-static inline void spi_shutdown_chip(struct dw_spi *dws)
+static inline void dw_spi_shutdown_chip(struct dw_spi *dws)
{
- spi_enable_chip(dws, 0);
- spi_set_clk(dws, 0);
+ dw_spi_enable_chip(dws, 0);
+ dw_spi_set_clk(dws, 0);
}
extern void dw_spi_set_cs(struct spi_device *spi, bool enable);
@@ -293,4 +294,4 @@ static inline void dw_spi_dma_setup_generic(struct dw_spi *dws) {}
#endif /* !CONFIG_SPI_DW_DMA */
-#endif /* DW_SPI_HEADER_H */
+#endif /* __SPI_DW_H__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 10:35:53 +0000