| /kernel/linux/linux-6.6/drivers/spi/ |
| D | Makefile | 1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for kernel SPI drivers.
6 ccflags-$(CONFIG_SPI_DEBUG) := -DDEBUG
8 # small core, mostly translating board-specific
10 obj-$(CONFIG_SPI_MASTER) += spi.o
11 obj-$(CONFIG_SPI_MEM) += spi-mem.o
12 obj-$(CONFIG_SPI_MUX) += spi-mux.o
13 obj-$(CONFIG_SPI_SPIDEV) += spidev.o
14 obj-$(CONFIG_SPI_LOOPBACK_TEST) += spi-loopback-test.o
16 # SPI master controller drivers (bus)
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| D | spi-stm32.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // STMicroelectronics STM32 SPI Controller driver
5 // Copyright (C) 2017, STMicroelectronics - All Rights Reserved
20 #include <linux/spi/spi.h>
24 /* STM32F4 SPI registers */
73 /* STM32F4 SPI Baud Rate min/max divisor */
77 /* STM32H7 SPI registers */
149 /* STM32H7 SPI Master Baud Rate min/max divisor */
153 /* STM32H7 SPI Communication mode */
159 /* SPI Communication type */
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # SPI driver configuration
5 menuconfig SPI config
6 bool "SPI support"
10 protocol. Chips that support SPI can have data transfer rates
12 controller and a chipselect. Most SPI slaves don't support
13 dynamic device discovery; some are even write-only or read-only.
15 SPI is widely used by microcontrollers to talk with sensors,
17 chips, analog to digital (and d-to-a) converters, and more.
18 MMC and SD cards can be accessed using SPI protocol; and for
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| D | spi-lantiq-ssc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011-2015 Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
4 * Copyright (C) 2016 Hauke Mehrtens <hauke@hauke-m.de>
20 #include <linux/spi/spi.h>
142 #define LTQ_SPI_RXCNT_TODO_M 0xFFFF /* Recevie to-do value */
156 int (*cfg_irq)(struct platform_device *pdev, struct lantiq_ssc_spi *spi);
189 static u32 lantiq_ssc_readl(const struct lantiq_ssc_spi *spi, u32 reg) in lantiq_ssc_readl() argument
191 return __raw_readl(spi->regbase + reg); in lantiq_ssc_readl()
194 static void lantiq_ssc_writel(const struct lantiq_ssc_spi *spi, u32 val, in lantiq_ssc_writel() argument
197 __raw_writel(val, spi->regbase + reg); in lantiq_ssc_writel()
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| D | spi-microchip-core.c | 1 // SPDX-License-Identifier: (GPL-2.0)
3 * Microchip CoreSPI SPI controller driver
5 * Copyright (c) 2018-2022 Microchip Technology Inc. and its subsidiaries
21 #include <linux/spi/spi.h>
104 u32 clk_gen; /* divider for spi output clock generated by the controller */
112 static inline u32 mchp_corespi_read(struct mchp_corespi *spi, unsigned int reg) in mchp_corespi_read() argument
114 return readl(spi->regs + reg); in mchp_corespi_read()
117 static inline void mchp_corespi_write(struct mchp_corespi *spi, unsigned int reg, u32 val) in mchp_corespi_write() argument
119 writel(val, spi->regs + reg); in mchp_corespi_write()
122 static inline void mchp_corespi_disable(struct mchp_corespi *spi) in mchp_corespi_disable() argument
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| D | spi-mux.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // General Purpose SPI multiplexer
10 #include <linux/spi/spi.h>
12 #define SPI_MUX_NO_CS ((unsigned int)-1)
17 * This driver supports a MUX on an SPI bus. This can be useful when you need
21 * The driver will create an additional SPI controller. Devices added under the
26 * struct spi_mux_priv - the basic spi_mux structure
27 * @spi: pointer to the device struct attached to the parent
28 * spi controller
36 * downstream spi devices
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| D | spi-sifive.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // SiFive SPI controller driver (master mode only)
15 #include <linux/spi/spi.h>
38 #define SIFIVE_SPI_REG_FCTRL 0x60 /* SPI flash interface control */
39 #define SIFIVE_SPI_REG_FFMT 0x64 /* SPI flash instruction format */
96 struct completion done; /* wake-up from interrupt */
99 static void sifive_spi_write(struct sifive_spi *spi, int offset, u32 value) in sifive_spi_write() argument
101 iowrite32(value, spi->regs + offset); in sifive_spi_write()
104 static u32 sifive_spi_read(struct sifive_spi *spi, int offset) in sifive_spi_read() argument
106 return ioread32(spi->regs + offset); in sifive_spi_read()
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| /kernel/linux/linux-5.10/drivers/spi/ |
| D | Makefile | 1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for kernel SPI drivers.
6 ccflags-$(CONFIG_SPI_DEBUG) := -DDEBUG
8 # small core, mostly translating board-specific
10 obj-$(CONFIG_SPI_MASTER) += spi.o
11 obj-$(CONFIG_SPI_MEM) += spi-mem.o
12 obj-$(CONFIG_SPI_MUX) += spi-mux.o
13 obj-$(CONFIG_SPI_SPIDEV) += spidev.o
14 obj-$(CONFIG_SPI_LOOPBACK_TEST) += spi-loopback-test.o
16 # SPI master controller drivers (bus)
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| D | spi-stm32.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // STMicroelectronics STM32 SPI Controller driver (master mode only)
5 // Copyright (C) 2017, STMicroelectronics - All Rights Reserved
19 #include <linux/spi/spi.h>
23 /* STM32F4 SPI registers */
72 /* STM32F4 SPI Baud Rate min/max divisor */
76 /* STM32H7 SPI registers */
153 /* STM32H7 SPI Master Baud Rate min/max divisor */
157 /* STM32H7 SPI Communication mode */
163 /* SPI Communication type */
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # SPI driver configuration
5 menuconfig SPI config
6 bool "SPI support"
10 protocol. Chips that support SPI can have data transfer rates
12 controller and a chipselect. Most SPI slaves don't support
13 dynamic device discovery; some are even write-only or read-only.
15 SPI is widely used by microcontrollers to talk with sensors,
17 chips, analog to digital (and d-to-a) converters, and more.
18 MMC and SD cards can be accessed using SPI protocol; and for
[all …]
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| D | spi-lantiq-ssc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011-2015 Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
4 * Copyright (C) 2016 Hauke Mehrtens <hauke@hauke-m.de>
19 #include <linux/spi/spi.h>
141 #define LTQ_SPI_RXCNT_TODO_M 0xFFFF /* Recevie to-do value */
155 int (*cfg_irq)(struct platform_device *pdev, struct lantiq_ssc_spi *spi);
188 static u32 lantiq_ssc_readl(const struct lantiq_ssc_spi *spi, u32 reg) in lantiq_ssc_readl() argument
190 return __raw_readl(spi->regbase + reg); in lantiq_ssc_readl()
193 static void lantiq_ssc_writel(const struct lantiq_ssc_spi *spi, u32 val, in lantiq_ssc_writel() argument
196 __raw_writel(val, spi->regbase + reg); in lantiq_ssc_writel()
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| D | spi-mux.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // General Purpose SPI multiplexer
10 #include <linux/spi/spi.h>
12 #define SPI_MUX_NO_CS ((unsigned int)-1)
17 * This driver supports a MUX on an SPI bus. This can be useful when you need
21 * The driver will create an additional SPI controller. Devices added under the
26 * struct spi_mux_priv - the basic spi_mux structure
27 * @spi: pointer to the device struct attached to the parent
28 * spi controller
36 * downstream spi devices
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| D | spi-sifive.c | 1 // SPDX-License-Identifier: GPL-2.0
5 // SiFive SPI controller driver (master mode only)
15 #include <linux/spi/spi.h>
38 #define SIFIVE_SPI_REG_FCTRL 0x60 /* SPI flash interface control */
39 #define SIFIVE_SPI_REG_FFMT 0x64 /* SPI flash instruction format */
96 struct completion done; /* wake-up from interrupt */
99 static void sifive_spi_write(struct sifive_spi *spi, int offset, u32 value) in sifive_spi_write() argument
101 iowrite32(value, spi->regs + offset); in sifive_spi_write()
104 static u32 sifive_spi_read(struct sifive_spi *spi, int offset) in sifive_spi_read() argument
106 return ioread32(spi->regs + offset); in sifive_spi_read()
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| /kernel/linux/linux-6.6/drivers/staging/pi433/ |
| D | rf69.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * abstraction of the spi interface of HopeRf rf69 radio module
5 * Copyright (C) 2016 Wolf-Entwicklungen
6 * Marcus Wolf <linux@wolf-entwicklungen.de>
10 #include <linux/spi/spi.h>
18 /*-------------------------------------------------------------------------*/
20 u8 rf69_read_reg(struct spi_device *spi, u8 addr) in rf69_read_reg() argument
22 return spi_w8r8(spi, addr); in rf69_read_reg()
25 static int rf69_write_reg(struct spi_device *spi, u8 addr, u8 value) in rf69_write_reg() argument
32 return spi_write(spi, &buffer, ARRAY_SIZE(buffer)); in rf69_write_reg()
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| D | rf69.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Copyright (C) 2016 Wolf-Entwicklungen
6 * Marcus Wolf <linux@wolf-entwicklungen.de>
20 u8 rf69_read_reg(struct spi_device *spi, u8 addr);
21 int rf69_get_version(struct spi_device *spi);
22 int rf69_set_mode(struct spi_device *spi, enum mode mode);
23 int rf69_set_data_mode(struct spi_device *spi, u8 data_mode);
24 int rf69_set_modulation(struct spi_device *spi, enum modulation modulation);
25 int rf69_set_modulation_shaping(struct spi_device *spi,
27 int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate);
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| /kernel/linux/linux-5.10/drivers/staging/pi433/ |
| D | rf69.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * abstraction of the spi interface of HopeRf rf69 radio module
5 * Copyright (C) 2016 Wolf-Entwicklungen
6 * Marcus Wolf <linux@wolf-entwicklungen.de>
17 #include <linux/spi/spi.h>
25 /*-------------------------------------------------------------------------*/
27 static u8 rf69_read_reg(struct spi_device *spi, u8 addr) in rf69_read_reg() argument
31 retval = spi_w8r8(spi, addr); in rf69_read_reg()
40 dev_dbg(&spi->dev, "read 0x%x FAILED\n", addr); in rf69_read_reg()
42 dev_dbg(&spi->dev, "read 0x%x from reg 0x%x\n", retval, addr); in rf69_read_reg()
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| D | rf69.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * Copyright (C) 2016 Wolf-Entwicklungen
6 * Marcus Wolf <linux@wolf-entwicklungen.de>
20 int rf69_set_mode(struct spi_device *spi, enum mode mode);
21 int rf69_set_data_mode(struct spi_device *spi, u8 data_mode);
22 int rf69_set_modulation(struct spi_device *spi, enum modulation modulation);
23 int rf69_set_modulation_shaping(struct spi_device *spi,
25 int rf69_set_bit_rate(struct spi_device *spi, u16 bit_rate);
26 int rf69_set_deviation(struct spi_device *spi, u32 deviation);
27 int rf69_set_frequency(struct spi_device *spi, u32 frequency);
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| /kernel/linux/linux-5.10/drivers/staging/greybus/ |
| D | spilib.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Greybus SPI library
5 * Copyright 2014-2016 Google Inc.
6 * Copyright 2014-2016 Linaro Ltd.
14 #include <linux/spi/spi.h>
41 #define GB_SPI_STATE_MSG_ERROR ((void *)-1)
45 static struct spi_master *get_master_from_spi(struct gb_spilib *spi) in get_master_from_spi() argument
47 return gb_connection_get_data(spi->connection); in get_master_from_spi()
54 data_max -= sizeof(struct gb_spi_transfer_request); in tx_header_fit_operation()
65 data_max -= sizeof(struct gb_spi_transfer_response); in calc_rx_xfer_size()
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| /kernel/linux/linux-6.6/drivers/staging/greybus/ |
| D | spilib.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Greybus SPI library
5 * Copyright 2014-2016 Google Inc.
6 * Copyright 2014-2016 Linaro Ltd.
14 #include <linux/spi/spi.h>
41 #define GB_SPI_STATE_MSG_ERROR ((void *)-1)
45 static struct spi_master *get_master_from_spi(struct gb_spilib *spi) in get_master_from_spi() argument
47 return gb_connection_get_data(spi->connection); in get_master_from_spi()
54 data_max -= sizeof(struct gb_spi_transfer_request); in tx_header_fit_operation()
65 data_max -= sizeof(struct gb_spi_transfer_response); in calc_rx_xfer_size()
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| /kernel/linux/linux-6.6/drivers/video/backlight/ |
| D | ili922x.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * controller. The interface to the display is SPI and the display's
20 #include <linux/spi/spi.h>
89 * ----------------------------------
91 * ----------------------------------
94 * - START_RS_INDEX set the index register
95 * - START_RS_REG write/read registers/GRAM
97 * - START_RW_WRITE write
98 * - START_RW_READ read
104 * CHECK_FREQ_REG(spi_device s, spi_transfer x) - Check the frequency
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| /kernel/linux/linux-5.10/drivers/video/backlight/ |
| D | ili922x.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * controller. The interface to the display is SPI and the display's
20 #include <linux/spi/spi.h>
89 * ----------------------------------
91 * ----------------------------------
94 * - START_RS_INDEX set the index register
95 * - START_RS_REG write/read registers/GRAM
97 * - START_RW_WRITE write
98 * - START_RW_READ read
104 * CHECK_FREQ_REG(spi_device s, spi_transfer x) - Check the frequency
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/spi/ |
| D | brcm,spi-bcm-qspi.txt | 1 Broadcom SPI controller
3 The Broadcom SPI controller is a SPI master found on various SOCs, including
4 BRCMSTB (BCM7XXX), Cygnus, NSP and NS2. The Broadcom Master SPI hw IP consits
6 MSPI : SPI master controller can read and write to a SPI slave device
7 BSPI : Broadcom SPI in combination with the MSPI hw IP provides acceleration
9 io with 3-byte and 4-byte addressing support.
14 use SPI protocol.
18 - #address-cells:
19 Must be <1>, as required by generic SPI binding.
21 - #size-cells:
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| /kernel/linux/linux-6.6/drivers/media/pci/netup_unidvb/ |
| D | netup_unidvb_spi.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Internal SPI driver for NetUP Universal Dual DVB-CI
13 #include <linux/spi/spi.h>
14 #include <linux/spi/flash.h>
16 #include <mtd/mtd-abi.h>
69 irqreturn_t netup_spi_interrupt(struct netup_spi *spi) in netup_spi_interrupt() argument
74 if (!spi) in netup_spi_interrupt()
77 spin_lock_irqsave(&spi->lock, flags); in netup_spi_interrupt()
78 reg = readw(&spi->regs->control_stat); in netup_spi_interrupt()
80 spin_unlock_irqrestore(&spi->lock, flags); in netup_spi_interrupt()
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| /kernel/linux/linux-5.10/drivers/media/pci/netup_unidvb/ |
| D | netup_unidvb_spi.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Internal SPI driver for NetUP Universal Dual DVB-CI
13 #include <linux/spi/spi.h>
14 #include <linux/spi/flash.h>
16 #include <mtd/mtd-abi.h>
69 irqreturn_t netup_spi_interrupt(struct netup_spi *spi) in netup_spi_interrupt() argument
74 if (!spi) in netup_spi_interrupt()
77 spin_lock_irqsave(&spi->lock, flags); in netup_spi_interrupt()
78 reg = readw(&spi->regs->control_stat); in netup_spi_interrupt()
80 spin_unlock_irqrestore(&spi->lock, flags); in netup_spi_interrupt()
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| /kernel/linux/linux-5.10/drivers/net/wan/ |
| D | slic_ds26522.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
16 #include <linux/spi/spi.h>
37 static void slic_write(struct spi_device *spi, u16 addr, in slic_write() argument
48 /* write spi addr and value */ in slic_write()
49 spi_write(spi, &temp[0], SLIC_THREE_LEN); in slic_write()
52 static u8 slic_read(struct spi_device *spi, u16 addr) in slic_read() argument
61 spi_write_then_read(spi, &temp[0], SLIC_TWO_LEN, &data, in slic_read()
68 static bool get_slic_product_code(struct spi_device *spi) in get_slic_product_code() argument
72 device_id = slic_read(spi, DS26522_IDR_ADDR); in get_slic_product_code()
79 static void ds26522_e1_spec_config(struct spi_device *spi) in ds26522_e1_spec_config() argument
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