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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 22:01:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-14 22:01:08 +0300
commit010b0e708e08727d38b82accb21832b63fe2c250 (patch)
tree29f110982a25675c02346320b2529ffd82aef244 /include/linux/spi
parent792adb90fa724ce07c0171cbc96b9215af4b1045 (diff)
parentc1acb21b32a3bb601453764c9eac9fc8fbb3a81d (diff)
downloadlinux-010b0e708e08727d38b82accb21832b63fe2c250.tar.xz
Merge tag 'spi-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "Quite an active release for the SPI subsystem, lots of small updates and fixes scattered about with highlights including: - 3-wire support in the GPIO driver. - support for setting a custom memory name in the memory mapped flash drivers. - support for extended mode in the Freescale DSPI controller. - support for the non-standard integration with the Microsemi Ocelot platform in the DesignWare driver. - new driver for the SocioNext UniPhier" * tag 'spi-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (47 commits) spi: davinci: fix a NULL pointer dereference spi: spi-mem: Constify spi_mem->name mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name spi: spi-mem: Extend the SPI mem interface to set a custom memory name spi: spi-mem: Fix a typo in the documentation of struct spi_mem spi: uniphier: remove unnecessary include headers spi: spi-gpio: add SPI_3WIRE support spi: add flags parameter to txrx_word function pointers spi: add SPI controller driver for UniPhier SoC spi: add DT bindings for UniPhier SPI controller spi: dw: document Microsemi integration spi: img-spfi: Set device select bits for SPFI port state spi: omap2-mcspi: remove several redundant variables spi: dw-mmio: add MSCC Ocelot support spi: dw: export dw_spi_set_cs spi: spi-fsl-espi: Log fifo counters on error spi: imx: Use the longuest possible burst size when in dynamic_burst spi: imx: remove unnecessary check in spi_imx_can_dma spi: imx: Use correct number of bytes per words spi: imx: Use dynamic bursts only when bits_per_word is 8, 16 or 32 ...
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/adi_spi3.h254
-rw-r--r--include/linux/spi/spi-mem.h14
-rw-r--r--include/linux/spi/spi_bitbang.h5
3 files changed, 16 insertions, 257 deletions
diff --git a/include/linux/spi/adi_spi3.h b/include/linux/spi/adi_spi3.h
deleted file mode 100644
index c84123aa1d06..000000000000
--- a/include/linux/spi/adi_spi3.h
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Analog Devices SPI3 controller driver
- *
- * Copyright (c) 2014 Analog Devices Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef _ADI_SPI3_H_
-#define _ADI_SPI3_H_
-
-#include <linux/types.h>
-
-/* SPI_CONTROL */
-#define SPI_CTL_EN 0x00000001 /* Enable */
-#define SPI_CTL_MSTR 0x00000002 /* Master/Slave */
-#define SPI_CTL_PSSE 0x00000004 /* controls modf error in master mode */
-#define SPI_CTL_ODM 0x00000008 /* Open Drain Mode */
-#define SPI_CTL_CPHA 0x00000010 /* Clock Phase */
-#define SPI_CTL_CPOL 0x00000020 /* Clock Polarity */
-#define SPI_CTL_ASSEL 0x00000040 /* Slave Select Pin Control */
-#define SPI_CTL_SELST 0x00000080 /* Slave Select Polarity in-between transfers */
-#define SPI_CTL_EMISO 0x00000100 /* Enable MISO */
-#define SPI_CTL_SIZE 0x00000600 /* Word Transfer Size */
-#define SPI_CTL_SIZE08 0x00000000 /* SIZE: 8 bits */
-#define SPI_CTL_SIZE16 0x00000200 /* SIZE: 16 bits */
-#define SPI_CTL_SIZE32 0x00000400 /* SIZE: 32 bits */
-#define SPI_CTL_LSBF 0x00001000 /* LSB First */
-#define SPI_CTL_FCEN 0x00002000 /* Flow-Control Enable */
-#define SPI_CTL_FCCH 0x00004000 /* Flow-Control Channel Selection */
-#define SPI_CTL_FCPL 0x00008000 /* Flow-Control Polarity */
-#define SPI_CTL_FCWM 0x00030000 /* Flow-Control Water-Mark */
-#define SPI_CTL_FIFO0 0x00000000 /* FCWM: TFIFO empty or RFIFO Full */
-#define SPI_CTL_FIFO1 0x00010000 /* FCWM: TFIFO 75% or more empty or RFIFO 75% or more full */
-#define SPI_CTL_FIFO2 0x00020000 /* FCWM: TFIFO 50% or more empty or RFIFO 50% or more full */
-#define SPI_CTL_FMODE 0x00040000 /* Fast-mode Enable */
-#define SPI_CTL_MIOM 0x00300000 /* Multiple I/O Mode */
-#define SPI_CTL_MIO_DIS 0x00000000 /* MIOM: Disable */
-#define SPI_CTL_MIO_DUAL 0x00100000 /* MIOM: Enable DIOM (Dual I/O Mode) */
-#define SPI_CTL_MIO_QUAD 0x00200000 /* MIOM: Enable QUAD (Quad SPI Mode) */
-#define SPI_CTL_SOSI 0x00400000 /* Start on MOSI */
-/* SPI_RX_CONTROL */
-#define SPI_RXCTL_REN 0x00000001 /* Receive Channel Enable */
-#define SPI_RXCTL_RTI 0x00000004 /* Receive Transfer Initiate */
-#define SPI_RXCTL_RWCEN 0x00000008 /* Receive Word Counter Enable */
-#define SPI_RXCTL_RDR 0x00000070 /* Receive Data Request */
-#define SPI_RXCTL_RDR_DIS 0x00000000 /* RDR: Disabled */
-#define SPI_RXCTL_RDR_NE 0x00000010 /* RDR: RFIFO not empty */
-#define SPI_RXCTL_RDR_25 0x00000020 /* RDR: RFIFO 25% full */
-#define SPI_RXCTL_RDR_50 0x00000030 /* RDR: RFIFO 50% full */
-#define SPI_RXCTL_RDR_75 0x00000040 /* RDR: RFIFO 75% full */
-#define SPI_RXCTL_RDR_FULL 0x00000050 /* RDR: RFIFO full */
-#define SPI_RXCTL_RDO 0x00000100 /* Receive Data Over-Run */
-#define SPI_RXCTL_RRWM 0x00003000 /* FIFO Regular Water-Mark */
-#define SPI_RXCTL_RWM_0 0x00000000 /* RRWM: RFIFO Empty */
-#define SPI_RXCTL_RWM_25 0x00001000 /* RRWM: RFIFO 25% full */
-#define SPI_RXCTL_RWM_50 0x00002000 /* RRWM: RFIFO 50% full */
-#define SPI_RXCTL_RWM_75 0x00003000 /* RRWM: RFIFO 75% full */
-#define SPI_RXCTL_RUWM 0x00070000 /* FIFO Urgent Water-Mark */
-#define SPI_RXCTL_UWM_DIS 0x00000000 /* RUWM: Disabled */
-#define SPI_RXCTL_UWM_25 0x00010000 /* RUWM: RFIFO 25% full */
-#define SPI_RXCTL_UWM_50 0x00020000 /* RUWM: RFIFO 50% full */
-#define SPI_RXCTL_UWM_75 0x00030000 /* RUWM: RFIFO 75% full */
-#define SPI_RXCTL_UWM_FULL 0x00040000 /* RUWM: RFIFO full */
-/* SPI_TX_CONTROL */
-#define SPI_TXCTL_TEN 0x00000001 /* Transmit Channel Enable */
-#define SPI_TXCTL_TTI 0x00000004 /* Transmit Transfer Initiate */
-#define SPI_TXCTL_TWCEN 0x00000008 /* Transmit Word Counter Enable */
-#define SPI_TXCTL_TDR 0x00000070 /* Transmit Data Request */
-#define SPI_TXCTL_TDR_DIS 0x00000000 /* TDR: Disabled */
-#define SPI_TXCTL_TDR_NF 0x00000010 /* TDR: TFIFO not full */
-#define SPI_TXCTL_TDR_25 0x00000020 /* TDR: TFIFO 25% empty */
-#define SPI_TXCTL_TDR_50 0x00000030 /* TDR: TFIFO 50% empty */
-#define SPI_TXCTL_TDR_75 0x00000040 /* TDR: TFIFO 75% empty */
-#define SPI_TXCTL_TDR_EMPTY 0x00000050 /* TDR: TFIFO empty */
-#define SPI_TXCTL_TDU 0x00000100 /* Transmit Data Under-Run */
-#define SPI_TXCTL_TRWM 0x00003000 /* FIFO Regular Water-Mark */
-#define SPI_TXCTL_RWM_FULL 0x00000000 /* TRWM: TFIFO full */
-#define SPI_TXCTL_RWM_25 0x00001000 /* TRWM: TFIFO 25% empty */
-#define SPI_TXCTL_RWM_50 0x00002000 /* TRWM: TFIFO 50% empty */
-#define SPI_TXCTL_RWM_75 0x00003000 /* TRWM: TFIFO 75% empty */
-#define SPI_TXCTL_TUWM 0x00070000 /* FIFO Urgent Water-Mark */
-#define SPI_TXCTL_UWM_DIS 0x00000000 /* TUWM: Disabled */
-#define SPI_TXCTL_UWM_25 0x00010000 /* TUWM: TFIFO 25% empty */
-#define SPI_TXCTL_UWM_50 0x00020000 /* TUWM: TFIFO 50% empty */
-#define SPI_TXCTL_UWM_75 0x00030000 /* TUWM: TFIFO 75% empty */
-#define SPI_TXCTL_UWM_EMPTY 0x00040000 /* TUWM: TFIFO empty */
-/* SPI_CLOCK */
-#define SPI_CLK_BAUD 0x0000FFFF /* Baud Rate */
-/* SPI_DELAY */
-#define SPI_DLY_STOP 0x000000FF /* Transfer delay time in multiples of SCK period */
-#define SPI_DLY_LEADX 0x00000100 /* Extended (1 SCK) LEAD Control */
-#define SPI_DLY_LAGX 0x00000200 /* Extended (1 SCK) LAG control */
-/* SPI_SSEL */
-#define SPI_SLVSEL_SSE1 0x00000002 /* SPISSEL1 Enable */
-#define SPI_SLVSEL_SSE2 0x00000004 /* SPISSEL2 Enable */
-#define SPI_SLVSEL_SSE3 0x00000008 /* SPISSEL3 Enable */
-#define SPI_SLVSEL_SSE4 0x00000010 /* SPISSEL4 Enable */
-#define SPI_SLVSEL_SSE5 0x00000020 /* SPISSEL5 Enable */
-#define SPI_SLVSEL_SSE6 0x00000040 /* SPISSEL6 Enable */
-#define SPI_SLVSEL_SSE7 0x00000080 /* SPISSEL7 Enable */
-#define SPI_SLVSEL_SSEL1 0x00000200 /* SPISSEL1 Value */
-#define SPI_SLVSEL_SSEL2 0x00000400 /* SPISSEL2 Value */
-#define SPI_SLVSEL_SSEL3 0x00000800 /* SPISSEL3 Value */
-#define SPI_SLVSEL_SSEL4 0x00001000 /* SPISSEL4 Value */
-#define SPI_SLVSEL_SSEL5 0x00002000 /* SPISSEL5 Value */
-#define SPI_SLVSEL_SSEL6 0x00004000 /* SPISSEL6 Value */
-#define SPI_SLVSEL_SSEL7 0x00008000 /* SPISSEL7 Value */
-/* SPI_RWC */
-#define SPI_RWC_VALUE 0x0000FFFF /* Received Word-Count */
-/* SPI_RWCR */
-#define SPI_RWCR_VALUE 0x0000FFFF /* Received Word-Count Reload */
-/* SPI_TWC */
-#define SPI_TWC_VALUE 0x0000FFFF /* Transmitted Word-Count */
-/* SPI_TWCR */
-#define SPI_TWCR_VALUE 0x0000FFFF /* Transmitted Word-Count Reload */
-/* SPI_IMASK */
-#define SPI_IMSK_RUWM 0x00000002 /* Receive Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_TUWM 0x00000004 /* Transmit Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_ROM 0x00000010 /* Receive Over-Run Error Interrupt Mask */
-#define SPI_IMSK_TUM 0x00000020 /* Transmit Under-Run Error Interrupt Mask */
-#define SPI_IMSK_TCM 0x00000040 /* Transmit Collision Error Interrupt Mask */
-#define SPI_IMSK_MFM 0x00000080 /* Mode Fault Error Interrupt Mask */
-#define SPI_IMSK_RSM 0x00000100 /* Receive Start Interrupt Mask */
-#define SPI_IMSK_TSM 0x00000200 /* Transmit Start Interrupt Mask */
-#define SPI_IMSK_RFM 0x00000400 /* Receive Finish Interrupt Mask */
-#define SPI_IMSK_TFM 0x00000800 /* Transmit Finish Interrupt Mask */
-/* SPI_IMASKCL */
-#define SPI_IMSK_CLR_RUW 0x00000002 /* Receive Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_CLR_TUWM 0x00000004 /* Transmit Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_CLR_ROM 0x00000010 /* Receive Over-Run Error Interrupt Mask */
-#define SPI_IMSK_CLR_TUM 0x00000020 /* Transmit Under-Run Error Interrupt Mask */
-#define SPI_IMSK_CLR_TCM 0x00000040 /* Transmit Collision Error Interrupt Mask */
-#define SPI_IMSK_CLR_MFM 0x00000080 /* Mode Fault Error Interrupt Mask */
-#define SPI_IMSK_CLR_RSM 0x00000100 /* Receive Start Interrupt Mask */
-#define SPI_IMSK_CLR_TSM 0x00000200 /* Transmit Start Interrupt Mask */
-#define SPI_IMSK_CLR_RFM 0x00000400 /* Receive Finish Interrupt Mask */
-#define SPI_IMSK_CLR_TFM 0x00000800 /* Transmit Finish Interrupt Mask */
-/* SPI_IMASKST */
-#define SPI_IMSK_SET_RUWM 0x00000002 /* Receive Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_SET_TUWM 0x00000004 /* Transmit Urgent Water-Mark Interrupt Mask */
-#define SPI_IMSK_SET_ROM 0x00000010 /* Receive Over-Run Error Interrupt Mask */
-#define SPI_IMSK_SET_TUM 0x00000020 /* Transmit Under-Run Error Interrupt Mask */
-#define SPI_IMSK_SET_TCM 0x00000040 /* Transmit Collision Error Interrupt Mask */
-#define SPI_IMSK_SET_MFM 0x00000080 /* Mode Fault Error Interrupt Mask */
-#define SPI_IMSK_SET_RSM 0x00000100 /* Receive Start Interrupt Mask */
-#define SPI_IMSK_SET_TSM 0x00000200 /* Transmit Start Interrupt Mask */
-#define SPI_IMSK_SET_RFM 0x00000400 /* Receive Finish Interrupt Mask */
-#define SPI_IMSK_SET_TFM 0x00000800 /* Transmit Finish Interrupt Mask */
-/* SPI_STATUS */
-#define SPI_STAT_SPIF 0x00000001 /* SPI Finished */
-#define SPI_STAT_RUWM 0x00000002 /* Receive Urgent Water-Mark Breached */
-#define SPI_STAT_TUWM 0x00000004 /* Transmit Urgent Water-Mark Breached */
-#define SPI_STAT_ROE 0x00000010 /* Receive Over-Run Error Indication */
-#define SPI_STAT_TUE 0x00000020 /* Transmit Under-Run Error Indication */
-#define SPI_STAT_TCE 0x00000040 /* Transmit Collision Error Indication */
-#define SPI_STAT_MODF 0x00000080 /* Mode Fault Error Indication */
-#define SPI_STAT_RS 0x00000100 /* Receive Start Indication */
-#define SPI_STAT_TS 0x00000200 /* Transmit Start Indication */
-#define SPI_STAT_RF 0x00000400 /* Receive Finish Indication */
-#define SPI_STAT_TF 0x00000800 /* Transmit Finish Indication */
-#define SPI_STAT_RFS 0x00007000 /* SPI_RFIFO status */
-#define SPI_STAT_RFIFO_EMPTY 0x00000000 /* RFS: RFIFO Empty */
-#define SPI_STAT_RFIFO_25 0x00001000 /* RFS: RFIFO 25% Full */
-#define SPI_STAT_RFIFO_50 0x00002000 /* RFS: RFIFO 50% Full */
-#define SPI_STAT_RFIFO_75 0x00003000 /* RFS: RFIFO 75% Full */
-#define SPI_STAT_RFIFO_FULL 0x00004000 /* RFS: RFIFO Full */
-#define SPI_STAT_TFS 0x00070000 /* SPI_TFIFO status */
-#define SPI_STAT_TFIFO_FULL 0x00000000 /* TFS: TFIFO full */
-#define SPI_STAT_TFIFO_25 0x00010000 /* TFS: TFIFO 25% empty */
-#define SPI_STAT_TFIFO_50 0x00020000 /* TFS: TFIFO 50% empty */
-#define SPI_STAT_TFIFO_75 0x00030000 /* TFS: TFIFO 75% empty */
-#define SPI_STAT_TFIFO_EMPTY 0x00040000 /* TFS: TFIFO empty */
-#define SPI_STAT_FCS 0x00100000 /* Flow-Control Stall Indication */
-#define SPI_STAT_RFE 0x00400000 /* SPI_RFIFO Empty */
-#define SPI_STAT_TFF 0x00800000 /* SPI_TFIFO Full */
-/* SPI_ILAT */
-#define SPI_ILAT_RUWMI 0x00000002 /* Receive Urgent Water Mark Interrupt */
-#define SPI_ILAT_TUWMI 0x00000004 /* Transmit Urgent Water Mark Interrupt */
-#define SPI_ILAT_ROI 0x00000010 /* Receive Over-Run Error Indication */
-#define SPI_ILAT_TUI 0x00000020 /* Transmit Under-Run Error Indication */
-#define SPI_ILAT_TCI 0x00000040 /* Transmit Collision Error Indication */
-#define SPI_ILAT_MFI 0x00000080 /* Mode Fault Error Indication */
-#define SPI_ILAT_RSI 0x00000100 /* Receive Start Indication */
-#define SPI_ILAT_TSI 0x00000200 /* Transmit Start Indication */
-#define SPI_ILAT_RFI 0x00000400 /* Receive Finish Indication */
-#define SPI_ILAT_TFI 0x00000800 /* Transmit Finish Indication */
-/* SPI_ILATCL */
-#define SPI_ILAT_CLR_RUWMI 0x00000002 /* Receive Urgent Water Mark Interrupt */
-#define SPI_ILAT_CLR_TUWMI 0x00000004 /* Transmit Urgent Water Mark Interrupt */
-#define SPI_ILAT_CLR_ROI 0x00000010 /* Receive Over-Run Error Indication */
-#define SPI_ILAT_CLR_TUI 0x00000020 /* Transmit Under-Run Error Indication */
-#define SPI_ILAT_CLR_TCI 0x00000040 /* Transmit Collision Error Indication */
-#define SPI_ILAT_CLR_MFI 0x00000080 /* Mode Fault Error Indication */
-#define SPI_ILAT_CLR_RSI 0x00000100 /* Receive Start Indication */
-#define SPI_ILAT_CLR_TSI 0x00000200 /* Transmit Start Indication */
-#define SPI_ILAT_CLR_RFI 0x00000400 /* Receive Finish Indication */
-#define SPI_ILAT_CLR_TFI 0x00000800 /* Transmit Finish Indication */
-
-/*
- * adi spi3 registers layout
- */
-struct adi_spi_regs {
- u32 revid;
- u32 control;
- u32 rx_control;
- u32 tx_control;
- u32 clock;
- u32 delay;
- u32 ssel;
- u32 rwc;
- u32 rwcr;
- u32 twc;
- u32 twcr;
- u32 reserved0;
- u32 emask;
- u32 emaskcl;
- u32 emaskst;
- u32 reserved1;
- u32 status;
- u32 elat;
- u32 elatcl;
- u32 reserved2;
- u32 rfifo;
- u32 reserved3;
- u32 tfifo;
-};
-
-#define MAX_CTRL_CS 8 /* cs in spi controller */
-
-/* device.platform_data for SSP controller devices */
-struct adi_spi3_master {
- u16 num_chipselect;
- u16 pin_req[7];
-};
-
-/* spi_board_info.controller_data for SPI slave devices,
- * copied to spi_device.platform_data ... mostly for dma tuning
- */
-struct adi_spi3_chip {
- u32 control;
- u16 cs_chg_udelay; /* Some devices require 16-bit delays */
- u32 tx_dummy_val; /* tx value for rx only transfer */
- bool enable_dma;
-};
-
-#endif /* _ADI_SPI3_H_ */
diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
index 4fa34a227a0f..b2bd4b4127c4 100644
--- a/include/linux/spi/spi-mem.h
+++ b/include/linux/spi/spi-mem.h
@@ -124,7 +124,8 @@ struct spi_mem_op {
/**
* struct spi_mem - describes a SPI memory device
* @spi: the underlying SPI device
- * @drvpriv: spi_mem_drviver private data
+ * @drvpriv: spi_mem_driver private data
+ * @name: name of the SPI memory device
*
* Extra information that describe the SPI memory device and may be needed by
* the controller to properly handle this device should be placed here.
@@ -135,6 +136,7 @@ struct spi_mem_op {
struct spi_mem {
struct spi_device *spi;
void *drvpriv;
+ const char *name;
};
/**
@@ -167,6 +169,13 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
* limitations)
* @supports_op: check if an operation is supported by the controller
* @exec_op: execute a SPI memory operation
+ * @get_name: get a custom name for the SPI mem device from the controller.
+ * This might be needed if the controller driver has been ported
+ * to use the SPI mem layer and a custom name is used to keep
+ * mtdparts compatible.
+ * Note that if the implementation of this function allocates memory
+ * dynamically, then it should do so with devm_xxx(), as we don't
+ * have a ->free_name() function.
*
* This interface should be implemented by SPI controllers providing an
* high-level interface to execute SPI memory operation, which is usually the
@@ -178,6 +187,7 @@ struct spi_controller_mem_ops {
const struct spi_mem_op *op);
int (*exec_op)(struct spi_mem *mem,
const struct spi_mem_op *op);
+ const char *(*get_name)(struct spi_mem *mem);
};
/**
@@ -236,6 +246,8 @@ bool spi_mem_supports_op(struct spi_mem *mem,
int spi_mem_exec_op(struct spi_mem *mem,
const struct spi_mem_op *op);
+const char *spi_mem_get_name(struct spi_mem *mem);
+
int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv,
struct module *owner);
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index 51d8c060e513..b7e021b274dc 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -8,7 +8,7 @@ struct spi_bitbang {
struct mutex lock;
u8 busy;
u8 use_dma;
- u8 flags; /* extra spi->mode support */
+ u16 flags; /* extra spi->mode support */
struct spi_master *master;
@@ -30,7 +30,8 @@ struct spi_bitbang {
/* txrx_word[SPI_MODE_*]() just looks like a shift register */
u32 (*txrx_word[4])(struct spi_device *spi,
unsigned nsecs,
- u32 word, u8 bits);
+ u32 word, u8 bits, unsigned flags);
+ int (*set_line_direction)(struct spi_device *spi, bool output);
};
/* you can call these default bitbang->master methods from your custom