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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-13 11:07:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-13 11:07:37 -0700
commit6cdebf62a159f31351946685b02941c968b96e49 (patch)
tree06aa5c4552b7991b5cdde855cdf6b9a8892372ba /drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
parent21ac5a96513c6588c9a71bffa16d665675930a60 (diff)
parentbe84be4a35fa99cca7e81e6dd21516a324cca413 (diff)
Merge tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "This release sees some exciting changes from David Lechner which implements some optimisations that have been talked about for a long time which allows client drivers to pre-prepare SPI messages for repeated or low latency use. This lets us move work out of latency sensitive paths and avoid repeating work for frequently performed operations. As well as being useful in itself this will also be used in future to allow controllers to directly trigger SPI operations (eg, from interrupts). Otherwise this release has mostly been focused on cleanups, plus a couple of new devices: - Support for pre-optimising messages - A big set of updates from Uwe Kleine-König moving drivers to use APIs with more modern terminology for controllers - Major overhaul of the s3c64xx driver - Support for Google GS101 and Samsung Exynos850" * tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits) spi: Introduce SPI_INVALID_CS and is_valid_cs() spi: Fix types of the last chip select storage variables spi: Consistently use BIT for cs_index_mask spi: Exctract spi_dev_check_cs() helper spi: Exctract spi_set_all_cs_unused() helper spi: s3c64xx: switch exynos850 to new port config data spi: s3c64xx: switch gs101 to new port config data spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id spi: s3c64xx: get rid of the OF alias ID dependency spi: s3c64xx: introduce s3c64xx_spi_set_port_id() spi: s3c64xx: let the SPI core determine the bus number spi: s3c64xx: allow FIFO depth to be determined from the compatible spi: s3c64xx: retrieve the FIFO depth from the device tree spi: s3c64xx: determine the fifo depth only once spi: s3c64xx: allow full FIFO masks spi: s3c64xx: define a magic value spi: dt-bindings: introduce FIFO depth properties spi: axi-spi-engine: use struct_size() macro spi: axi-spi-engine: use __counted_by() attribute spi: axi-spi-engine: remove p from struct spi_engine_message_state ...
Diffstat (limited to 'drivers/media/pci/netup_unidvb/netup_unidvb_spi.c')
-rw-r--r--drivers/media/pci/netup_unidvb/netup_unidvb_spi.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
index 526042d8afae..e90aa1c1584c 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c
@@ -35,7 +35,7 @@ struct netup_spi_regs {
struct netup_spi {
struct device *dev;
- struct spi_master *master;
+ struct spi_controller *ctlr;
struct netup_spi_regs __iomem *regs;
u8 __iomem *mmio;
spinlock_t lock;
@@ -78,7 +78,7 @@ irqreturn_t netup_spi_interrupt(struct netup_spi *spi)
reg = readw(&spi->regs->control_stat);
if (!(reg & NETUP_SPI_CTRL_IRQ)) {
spin_unlock_irqrestore(&spi->lock, flags);
- dev_dbg(&spi->master->dev,
+ dev_dbg(&spi->ctlr->dev,
"%s(): not mine interrupt\n", __func__);
return IRQ_NONE;
}
@@ -88,15 +88,15 @@ irqreturn_t netup_spi_interrupt(struct netup_spi *spi)
spi->state = SPI_STATE_DONE;
wake_up(&spi->waitq);
spin_unlock_irqrestore(&spi->lock, flags);
- dev_dbg(&spi->master->dev,
+ dev_dbg(&spi->ctlr->dev,
"%s(): SPI interrupt handled\n", __func__);
return IRQ_HANDLED;
}
-static int netup_spi_transfer(struct spi_master *master,
+static int netup_spi_transfer(struct spi_controller *ctlr,
struct spi_message *msg)
{
- struct netup_spi *spi = spi_master_get_devdata(master);
+ struct netup_spi *spi = spi_controller_get_devdata(ctlr);
struct spi_transfer *t;
int result = 0;
u32 tr_size;
@@ -131,7 +131,7 @@ static int netup_spi_transfer(struct spi_master *master,
NETUP_SPI_CTRL_START |
(frag_last ? NETUP_SPI_CTRL_LAST_CS : 0),
&spi->regs->control_stat);
- dev_dbg(&spi->master->dev,
+ dev_dbg(&spi->ctlr->dev,
"%s(): control_stat 0x%04x\n",
__func__, readw(&spi->regs->control_stat));
wait_event_timeout(spi->waitq,
@@ -144,11 +144,11 @@ static int netup_spi_transfer(struct spi_master *master,
}
} else {
if (spi->state == SPI_STATE_START) {
- dev_dbg(&spi->master->dev,
+ dev_dbg(&spi->ctlr->dev,
"%s(): transfer timeout\n",
__func__);
} else {
- dev_dbg(&spi->master->dev,
+ dev_dbg(&spi->ctlr->dev,
"%s(): invalid state %d\n",
__func__, spi->state);
}
@@ -161,7 +161,7 @@ static int netup_spi_transfer(struct spi_master *master,
}
done:
msg->status = result;
- spi_finalize_current_message(master);
+ spi_finalize_current_message(ctlr);
return result;
}
@@ -172,30 +172,30 @@ static int netup_spi_setup(struct spi_device *spi)
int netup_spi_init(struct netup_unidvb_dev *ndev)
{
- struct spi_master *master;
+ struct spi_controller *ctlr;
struct netup_spi *nspi;
- master = devm_spi_alloc_master(&ndev->pci_dev->dev,
- sizeof(struct netup_spi));
- if (!master) {
+ ctlr = devm_spi_alloc_master(&ndev->pci_dev->dev,
+ sizeof(struct netup_spi));
+ if (!ctlr) {
dev_err(&ndev->pci_dev->dev,
"%s(): unable to alloc SPI master\n", __func__);
return -EINVAL;
}
- nspi = spi_master_get_devdata(master);
- master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
- master->bus_num = -1;
- master->num_chipselect = 1;
- master->transfer_one_message = netup_spi_transfer;
- master->setup = netup_spi_setup;
+ nspi = spi_controller_get_devdata(ctlr);
+ ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
+ ctlr->bus_num = -1;
+ ctlr->num_chipselect = 1;
+ ctlr->transfer_one_message = netup_spi_transfer;
+ ctlr->setup = netup_spi_setup;
spin_lock_init(&nspi->lock);
init_waitqueue_head(&nspi->waitq);
- nspi->master = master;
+ nspi->ctlr = ctlr;
nspi->regs = (struct netup_spi_regs __iomem *)(ndev->bmmio0 + 0x4000);
writew(2, &nspi->regs->clock_divider);
writew(NETUP_UNIDVB_IRQ_SPI, ndev->bmmio0 + REG_IMASK_SET);
ndev->spi = nspi;
- if (spi_register_master(master)) {
+ if (spi_register_controller(ctlr)) {
ndev->spi = NULL;
dev_err(&ndev->pci_dev->dev,
"%s(): unable to register SPI bus\n", __func__);
@@ -207,8 +207,8 @@ int netup_spi_init(struct netup_unidvb_dev *ndev)
ndev->pci_bus,
ndev->pci_slot,
ndev->pci_func);
- if (!spi_new_device(master, &netup_spi_board)) {
- spi_unregister_master(master);
+ if (!spi_new_device(ctlr, &netup_spi_board)) {
+ spi_unregister_controller(ctlr);
ndev->spi = NULL;
dev_err(&ndev->pci_dev->dev,
"%s(): unable to create SPI device\n", __func__);
@@ -227,7 +227,7 @@ void netup_spi_release(struct netup_unidvb_dev *ndev)
if (!spi)
return;
- spi_unregister_master(spi->master);
+ spi_unregister_controller(spi->ctlr);
spin_lock_irqsave(&spi->lock, flags);
reg = readw(&spi->regs->control_stat);
writew(reg | NETUP_SPI_CTRL_IRQ, &spi->regs->control_stat);