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
  ...

1 files changed, 32 insertions, 32 deletions

diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index ecd44016c197..a0e2204fc039 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -187,7 +187,7 @@ int spi_bitbang_setup(struct spi_device *spi)
 	bool			initial_setup = false;
 	int			retval;
 
-	bitbang = spi_master_get_devdata(spi->master);
+	bitbang = spi_controller_get_devdata(spi->controller);
 
 	if (!cs) {
 		cs = kzalloc(sizeof(*cs), GFP_KERNEL);
@@ -236,7 +236,7 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)
 	unsigned		nsecs = cs->nsecs;
 	struct spi_bitbang	*bitbang;
 
-	bitbang = spi_master_get_devdata(spi->master);
+	bitbang = spi_controller_get_devdata(spi->controller);
 	if (bitbang->set_line_direction) {
 		int err;
 
@@ -268,11 +268,11 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)
  * transfer-at-a-time ones to leverage dma or fifo hardware.
  */
 
-static int spi_bitbang_prepare_hardware(struct spi_master *spi)
+static int spi_bitbang_prepare_hardware(struct spi_controller *spi)
 {
 	struct spi_bitbang	*bitbang;
 
-	bitbang = spi_master_get_devdata(spi);
+	bitbang = spi_controller_get_devdata(spi);
 
 	mutex_lock(&bitbang->lock);
 	bitbang->busy = 1;
@@ -281,11 +281,11 @@ static int spi_bitbang_prepare_hardware(struct spi_master *spi)
 	return 0;
 }
 
-static int spi_bitbang_transfer_one(struct spi_master *master,
+static int spi_bitbang_transfer_one(struct spi_controller *ctlr,
 				    struct spi_device *spi,
 				    struct spi_transfer *transfer)
 {
-	struct spi_bitbang *bitbang = spi_master_get_devdata(master);
+	struct spi_bitbang *bitbang = spi_controller_get_devdata(ctlr);
 	int status = 0;
 
 	if (bitbang->setup_transfer) {
@@ -303,16 +303,16 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
 		status = -EREMOTEIO;
 
 out:
-	spi_finalize_current_transfer(master);
+	spi_finalize_current_transfer(ctlr);
 
 	return status;
 }
 
-static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
+static int spi_bitbang_unprepare_hardware(struct spi_controller *spi)
 {
 	struct spi_bitbang	*bitbang;
 
-	bitbang = spi_master_get_devdata(spi);
+	bitbang = spi_controller_get_devdata(spi);
 
 	mutex_lock(&bitbang->lock);
 	bitbang->busy = 0;
@@ -323,7 +323,7 @@ static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
 
 static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)
 {
-	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);
+	struct spi_bitbang *bitbang = spi_controller_get_devdata(spi->controller);
 
 	/* SPI core provides CS high / low, but bitbang driver
 	 * expects CS active
@@ -341,10 +341,10 @@ static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)
 
 int spi_bitbang_init(struct spi_bitbang *bitbang)
 {
-	struct spi_master *master = bitbang->master;
+	struct spi_controller *ctlr = bitbang->ctlr;
 	bool custom_cs;
 
-	if (!master)
+	if (!ctlr)
 		return -EINVAL;
 	/*
 	 * We only need the chipselect callback if we are actually using it.
@@ -352,39 +352,39 @@ int spi_bitbang_init(struct spi_bitbang *bitbang)
 	 * SPI_CONTROLLER_GPIO_SS flag is set, we always need to call the
 	 * driver-specific chipselect routine.
 	 */
-	custom_cs = (!master->use_gpio_descriptors ||
-		     (master->flags & SPI_CONTROLLER_GPIO_SS));
+	custom_cs = (!ctlr->use_gpio_descriptors ||
+		     (ctlr->flags & SPI_CONTROLLER_GPIO_SS));
 
 	if (custom_cs && !bitbang->chipselect)
 		return -EINVAL;
 
 	mutex_init(&bitbang->lock);
 
-	if (!master->mode_bits)
-		master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
+	if (!ctlr->mode_bits)
+		ctlr->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
 
-	if (master->transfer || master->transfer_one_message)
+	if (ctlr->transfer || ctlr->transfer_one_message)
 		return -EINVAL;
 
-	master->prepare_transfer_hardware = spi_bitbang_prepare_hardware;
-	master->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware;
-	master->transfer_one = spi_bitbang_transfer_one;
+	ctlr->prepare_transfer_hardware = spi_bitbang_prepare_hardware;
+	ctlr->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware;
+	ctlr->transfer_one = spi_bitbang_transfer_one;
 	/*
 	 * When using GPIO descriptors, the ->set_cs() callback doesn't even
 	 * get called unless SPI_CONTROLLER_GPIO_SS is set.
 	 */
 	if (custom_cs)
-		master->set_cs = spi_bitbang_set_cs;
+		ctlr->set_cs = spi_bitbang_set_cs;
 
 	if (!bitbang->txrx_bufs) {
 		bitbang->use_dma = 0;
 		bitbang->txrx_bufs = spi_bitbang_bufs;
-		if (!master->setup) {
+		if (!ctlr->setup) {
 			if (!bitbang->setup_transfer)
 				bitbang->setup_transfer =
 					 spi_bitbang_setup_transfer;
-			master->setup = spi_bitbang_setup;
-			master->cleanup = spi_bitbang_cleanup;
+			ctlr->setup = spi_bitbang_setup;
+			ctlr->cleanup = spi_bitbang_cleanup;
 		}
 	}
 
@@ -411,18 +411,18 @@ EXPORT_SYMBOL_GPL(spi_bitbang_init);
  * master methods.  Those methods are the defaults if the bitbang->txrx_bufs
  * routine isn't initialized.
  *
- * This routine registers the spi_master, which will process requests in a
+ * This routine registers the spi_controller, which will process requests in a
  * dedicated task, keeping IRQs unblocked most of the time.  To stop
  * processing those requests, call spi_bitbang_stop().
  *
- * On success, this routine will take a reference to master. The caller is
- * responsible for calling spi_bitbang_stop() to decrement the reference and
- * spi_master_put() as counterpart of spi_alloc_master() to prevent a memory
+ * On success, this routine will take a reference to the controller. The caller
+ * is responsible for calling spi_bitbang_stop() to decrement the reference and
+ * spi_controller_put() as counterpart of spi_alloc_master() to prevent a memory
  * leak.
  */
 int spi_bitbang_start(struct spi_bitbang *bitbang)
 {
-	struct spi_master *master = bitbang->master;
+	struct spi_controller *ctlr = bitbang->ctlr;
 	int ret;
 
 	ret = spi_bitbang_init(bitbang);
@@ -432,9 +432,9 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
 	/* driver may get busy before register() returns, especially
 	 * if someone registered boardinfo for devices
 	 */
-	ret = spi_register_master(spi_master_get(master));
+	ret = spi_register_controller(spi_controller_get(ctlr));
 	if (ret)
-		spi_master_put(master);
+		spi_controller_put(ctlr);
 
 	return ret;
 }
@@ -445,7 +445,7 @@ EXPORT_SYMBOL_GPL(spi_bitbang_start);
  */
 void spi_bitbang_stop(struct spi_bitbang *bitbang)
 {
-	spi_unregister_master(bitbang->master);
+	spi_unregister_controller(bitbang->ctlr);
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_stop);