Merge tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This has been a fairly quiet release for SPI, though it is likely that
  the next release will have some big changes as there's some
  preparatory work for multiple chip select support gone in - the rest
  of the code is on the list but will need to be rebased onto -rc1.
  Otherwise there's a couple of new tunables for chip select timings,
  some new devices and smaller device specific updates and fixes.

   - Support for configuring the hold and minimum inactive times for
     chip selects.

   - Beginnings of support for supporting devices which have multiple
     chip selects on a single device.

   - Support for newer Broadcom HSSPI and Intel controllers, Silicon
     Labs EM3581 and SI3210"

* tag 'spi-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (67 commits)
  spi: dt-bindings: qcom,spi-qcom-qspi: document OPP and power-domains
  spi: spidev: drop the incorrect notice from Kconfig
  spi: bcm63xx-hsspi: fix error code in probe
  spi: bcmbca-hsspi: Fix error code in probe() function
  spi: synquacer: Fix timeout handling in synquacer_spi_transfer_one()
  spi: intel: Check number of chip selects after reading the descriptor
  spi: xilinx: add force_irq for QSPI mode
  spi: spi-st-ssc: convert to DT schema
  spi: Reorder fields in 'struct spi_transfer'
  spi: cadence-quadspi: use STIG mode for small reads
  spi: cadence-quadspi: setup ADDR Bits in cmd reads
  spi: cadence-quadspi: Add flag for direct mode writes
  spi: cadence-quadspi: Reset CMD_CTRL Reg on cmd r/w completion
  MAINTAINERS: Remove file reference for Broadcom Broadband SoC HS SPI driver entry
  spi: bcm63xx-hsspi: bcmbca-hsspi: fix _be16 type usage
  MAINTAINERS: Add entry for Broadcom Broadband SoC HS SPI drivers
  spi: bcmbca-hsspi: Add driver for newer HSSPI controller
  spi: bcm63xx-hsspi: Disable spi mem dual io read op support
  spi: spi-mem: Allow controller supporting mem_ops without exec_op
  spi: bcm63xx-hsspi: Add prepend mode support
  ...

include/linux/spi/altera.h

@@ -14,7 +14,7 @@
 
 /**
  * struct altera_spi_platform_data - Platform data of the Altera SPI driver
- * @mode_bits:		Mode bits of SPI master.
+ * @mode_bits:		Mode bits of SPI host.
  * @num_chipselect:	Number of chipselects.
  * @bits_per_word_mask:	bitmask of supported bits_per_word for transfers.
  * @num_devices:	Number of devices that shall be added when the driver
@@ -46,5 +46,5 @@ struct altera_spi {
 };
 
 extern irqreturn_t altera_spi_irq(int irq, void *dev);
-extern void altera_spi_init_master(struct spi_master *master);
+extern void altera_spi_init_host(struct spi_controller *host);
 #endif /* __LINUX_SPI_ALTERA_H */

include/linux/spi/spi.h

@@ -26,6 +26,7 @@ struct spi_controller;
 struct spi_transfer;
 struct spi_controller_mem_ops;
 struct spi_controller_mem_caps;
+struct spi_message;
 
 /*
  * INTERFACES between SPI master-side drivers and SPI slave protocol handlers,
@@ -119,6 +120,8 @@ struct spi_delay {
 
 extern int spi_delay_to_ns(struct spi_delay *_delay, struct spi_transfer *xfer);
 extern int spi_delay_exec(struct spi_delay *_delay, struct spi_transfer *xfer);
+extern void spi_transfer_cs_change_delay_exec(struct spi_message *msg,
+						  struct spi_transfer *xfer);
 
 /**
  * struct spi_device - Controller side proxy for an SPI slave device
@@ -263,7 +266,25 @@ static inline void *spi_get_drvdata(struct spi_device *spi)
 	return dev_get_drvdata(&spi->dev);
 }
 
-struct spi_message;
+static inline u8 spi_get_chipselect(struct spi_device *spi, u8 idx)
+{
+	return spi->chip_select;
+}
+
+static inline void spi_set_chipselect(struct spi_device *spi, u8 idx, u8 chipselect)
+{
+	spi->chip_select = chipselect;
+}
+
+static inline struct gpio_desc *spi_get_csgpiod(struct spi_device *spi, u8 idx)
+{
+	return spi->cs_gpiod;
+}
+
+static inline void spi_set_csgpiod(struct spi_device *spi, u8 idx, struct gpio_desc *csgpiod)
+{
+	spi->cs_gpiod = csgpiod;
+}
 
 /**
  * struct spi_driver - Host side "protocol" driver
@@ -1001,6 +1022,9 @@ struct spi_transfer {
 	void		*rx_buf;
 	unsigned	len;
 
+#define SPI_TRANS_FAIL_NO_START	BIT(0)
+	u16		error;
+
 	dma_addr_t	tx_dma;
 	dma_addr_t	rx_dma;
 	struct sg_table tx_sg;
@@ -1011,6 +1035,7 @@ struct spi_transfer {
 	unsigned	cs_change:1;
 	unsigned	tx_nbits:3;
 	unsigned	rx_nbits:3;
+	unsigned	timestamped:1;
 #define	SPI_NBITS_SINGLE	0x01 /* 1bit transfer */
 #define	SPI_NBITS_DUAL		0x02 /* 2bits transfer */
 #define	SPI_NBITS_QUAD		0x04 /* 4bits transfer */
@@ -1027,12 +1052,7 @@ struct spi_transfer {
 
 	struct ptp_system_timestamp *ptp_sts;
 
-	bool		timestamped;
-
 	struct list_head transfer_list;
-
-#define SPI_TRANS_FAIL_NO_START	BIT(0)
-	u16		error;
 };
 
 /**

include/linux/spi/xilinx_spi.h

@@ -15,6 +15,7 @@ struct xspi_platform_data {
 	u8 bits_per_word;
 	struct spi_board_info *devices;
 	u8 num_devices;
+	bool force_irq;
 };
 
 #endif /* __LINUX_SPI_XILINX_SPI_H */