| /kernel/linux/linux-5.10/drivers/spi/ |
| 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 | spi-sirf.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SPI bus driver for CSR SiRFprimaII
20 #include <linux/spi/spi.h>
21 #include <linux/spi/spi_bitbang.h>
23 #include <linux/dma-direction.h>
24 #include <linux/dma-mapping.h>
28 /* SPI CTRL register defines */
136 #define SIRFSOC_SPI_FIFO_FULL_MASK(s) (1 << ((s)->fifo_full_offset))
137 #define SIRFSOC_SPI_FIFO_EMPTY_MASK(s) (1 << ((s)->fifo_full_offset + 1))
138 #define SIRFSOC_SPI_FIFO_THD_MASK(s) ((s)->fifo_size - 1)
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| D | spi-davinci.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
16 #include <linux/dma-mapping.h>
19 #include <linux/spi/spi.h>
20 #include <linux/spi/spi_bitbang.h>
23 #include <linux/platform_data/spi-davinci.h>
89 /* SPI Controller registers */
104 /* SPI Controller driver's private data. */
111 void __iomem *base; member
137 if (dspi->rx) { in davinci_spi_rx_buf_u8()
138 u8 *rx = dspi->rx; in davinci_spi_rx_buf_u8()
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| D | spi-mxs.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 // Freescale MXS SPI master driver
15 // Based on code from U-Boot bootloader by:
18 // Based on spi-stmp.c, which is:
28 #include <linux/dma-mapping.h>
39 #include <linux/spi/spi.h>
40 #include <linux/spi/mxs-spi.h>
41 #include <trace/events/spi.h>
43 #define DRIVER_NAME "mxs-spi"
55 #define TXRX_DEASSERT_CS (1<<1) /* De-assert CS at end of txrx */
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| D | spi-omap-100k.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * OMAP7xx SPI 100k controller driver
24 #include <linux/spi/spi.h>
52 #define SPI_CTRL_WORD_SIZE(x) (((x) - 1) << 2)
71 /* Virtual base address of the controller */
72 void __iomem *base; member
76 void __iomem *base; member
85 /* enable SPI */ in spi100k_enable_clock()
86 val = readw(spi100k->base + SPI_SETUP1); in spi100k_enable_clock()
88 writew(val, spi100k->base + SPI_SETUP1); in spi100k_enable_clock()
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| D | spi-st-ssc4.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2008-2014 STMicroelectronics Limited
9 * SPI master mode controller driver, used in STMicroelectronics devices.
23 #include <linux/spi/spi.h>
24 #include <linux/spi/spi_bitbang.h>
55 /* SSC SPI Controller */
56 void __iomem *base; member
60 /* SSC SPI current transaction */
75 if (spi_st->words_remaining > FIFO_SIZE) in ssc_write_tx_fifo()
78 count = spi_st->words_remaining; in ssc_write_tx_fifo()
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| D | spi-ar934x.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // SPI controller driver for Qualcomm Atheros AR934x/QCA95xx SoCs
7 // Based on spi-mt7621.c:
9 // Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org>
10 // Copyright (C) 2014-2015 Felix Fietkau <nbd@nbd.name>
18 #include <linux/spi/spi.h>
20 #define DRIVER_NAME "spi-ar934x"
45 void __iomem *base; member
52 int div = DIV_ROUND_UP(sp->clk_freq, freq * 2) - 1; in ar934x_spi_clk_div()
57 return -EINVAL; in ar934x_spi_clk_div()
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| D | spi-oc-tiny.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * OpenCores tiny SPI master driver
19 #include <linux/spi/spi.h>
20 #include <linux/spi/spi_bitbang.h>
21 #include <linux/spi/spi_oc_tiny.h>
41 void __iomem *base; member
56 return spi_master_get_devdata(sdev->master); in tiny_spi_to_hw()
59 static unsigned int tiny_spi_baud(struct spi_device *spi, unsigned int hz) in tiny_spi_baud() argument
61 struct tiny_spi *hw = tiny_spi_to_hw(spi); in tiny_spi_baud()
63 return min(DIV_ROUND_UP(hw->freq, hz * 2), (1U << hw->baudwidth)) - 1; in tiny_spi_baud()
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| D | spi-geni-qcom.c | 1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017-2018, The Linux foundation. All rights reserved.
12 #include <linux/qcom-geni-se.h>
13 #include <linux/spi/spi.h>
16 /* SPI SE specific registers and respective register fields */
52 /* M_CMD OP codes for SPI */
59 /* M_CMD params for SPI */
98 ret = geni_se_clk_freq_match(&mas->se, in get_spi_clk_cfg()
99 speed_hz * mas->oversampling, in get_spi_clk_cfg()
102 dev_err(mas->dev, "Failed(%d) to find src clk for %dHz\n", in get_spi_clk_cfg()
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| D | spi-uniphier.c | 1 // SPDX-License-Identifier: GPL-2.0
2 // spi-uniphier.c - Socionext UniPhier SPI controller driver
4 // Copyright 2016-2018 Socionext Inc.
16 #include <linux/spi/spi.h>
26 void __iomem *base; member
113 val = readl(priv->base + SSI_IE); in uniphier_spi_irq_enable()
115 writel(val, priv->base + SSI_IE); in uniphier_spi_irq_enable()
123 val = readl(priv->base + SSI_IE); in uniphier_spi_irq_disable()
125 writel(val, priv->base + SSI_IE); in uniphier_spi_irq_disable()
128 static void uniphier_spi_set_mode(struct spi_device *spi) in uniphier_spi_set_mode() argument
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| D | spi-mt65xx.c | 1 // SPDX-License-Identifier: GPL-2.0-only
17 #include <linux/platform_data/spi-mt65xx.h>
19 #include <linux/spi/spi.h>
20 #include <linux/dma-mapping.h>
96 void __iomem *base; member
147 { .compatible = "mediatek,mt2701-spi",
150 { .compatible = "mediatek,mt2712-spi",
153 { .compatible = "mediatek,mt6589-spi",
156 { .compatible = "mediatek,mt6765-spi",
159 { .compatible = "mediatek,mt7622-spi",
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| D | spi-slave-mt27xx.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 #include <linux/dma-mapping.h>
12 #include <linux/spi/spi.h>
68 void __iomem *base; member
76 { .compatible = "mediatek,mt2712-spi-slave", },
85 reg_val = readl(mdata->base + SPIS_DMA_CFG_REG); in mtk_spi_slave_disable_dma()
88 writel(reg_val, mdata->base + SPIS_DMA_CFG_REG); in mtk_spi_slave_disable_dma()
95 reg_val = readl(mdata->base + SPIS_CFG_REG); in mtk_spi_slave_disable_xfer()
98 writel(reg_val, mdata->base + SPIS_CFG_REG); in mtk_spi_slave_disable_xfer()
103 if (wait_for_completion_interruptible(&mdata->xfer_done) || in mtk_spi_slave_wait_for_completion()
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| D | spi-qup.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2008-2014, The Linux foundation. All rights reserved.
17 #include <linux/spi/spi.h>
19 #include <linux/dma-mapping.h>
116 #define SPI_MAX_XFER (SZ_64K - 64)
126 void __iomem *base; member
141 int w_size; /* bytes per SPI word */
154 static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer);
158 u32 opflag = readl_relaxed(controller->base + QUP_OPERATIONAL); in spi_qup_is_flag_set()
174 return controller->n_words * controller->w_size; in spi_qup_len()
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| /kernel/linux/linux-6.6/drivers/spi/ |
| 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 | spi-davinci.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
16 #include <linux/dma-mapping.h>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/spi_bitbang.h>
22 #include <linux/platform_data/spi-davinci.h>
88 /* SPI Controller registers */
103 /* SPI Controller driver's private data. */
110 void __iomem *base; member
136 if (dspi->rx) { in davinci_spi_rx_buf_u8()
137 u8 *rx = dspi->rx; in davinci_spi_rx_buf_u8()
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| D | spi-mxs.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 // Freescale MXS SPI master driver
15 // Based on code from U-Boot bootloader by:
18 // Based on spi-stmp.c, which is:
28 #include <linux/dma-mapping.h>
39 #include <linux/spi/spi.h>
40 #include <linux/spi/mxs-spi.h>
41 #include <trace/events/spi.h>
42 #include <linux/dma/mxs-dma.h>
44 #define DRIVER_NAME "mxs-spi"
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| D | spi-oc-tiny.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * OpenCores tiny SPI master driver
19 #include <linux/spi/spi.h>
20 #include <linux/spi/spi_bitbang.h>
21 #include <linux/spi/spi_oc_tiny.h>
41 void __iomem *base; member
56 return spi_master_get_devdata(sdev->master); in tiny_spi_to_hw()
59 static unsigned int tiny_spi_baud(struct spi_device *spi, unsigned int hz) in tiny_spi_baud() argument
61 struct tiny_spi *hw = tiny_spi_to_hw(spi); in tiny_spi_baud()
63 return min(DIV_ROUND_UP(hw->freq, hz * 2), (1U << hw->baudwidth)) - 1; in tiny_spi_baud()
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| D | spi-ar934x.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // SPI controller driver for Qualcomm Atheros AR934x/QCA95xx SoCs
7 // Based on spi-mt7621.c:
9 // Copyright (C) 2011-2013 Gabor Juhos <juhosg@openwrt.org>
10 // Copyright (C) 2014-2015 Felix Fietkau <nbd@nbd.name>
19 #include <linux/spi/spi.h>
21 #define DRIVER_NAME "spi-ar934x"
46 void __iomem *base; member
53 int div = DIV_ROUND_UP(sp->clk_freq, freq * 2) - 1; in ar934x_spi_clk_div()
58 return -EINVAL; in ar934x_spi_clk_div()
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| D | spi-mt65xx.c | 1 // SPDX-License-Identifier: GPL-2.0-only
17 #include <linux/platform_data/spi-mt65xx.h>
19 #include <linux/spi/spi.h>
20 #include <linux/spi/spi-mem.h>
21 #include <linux/dma-mapping.h>
114 * struct mtk_spi_compatible - device data structure
115 * @need_pad_sel: Enable pad (pins) selection in SPI controller
119 * @no_need_unprepare: Don't unprepare the SPI clk during runtime
132 * struct mtk_spi - SPI driver instance
133 * @base: Start address of the SPI controller registers
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| D | spi-st-ssc4.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2008-2014 STMicroelectronics Limited
9 * SPI master mode controller driver, used in STMicroelectronics devices.
22 #include <linux/spi/spi.h>
23 #include <linux/spi/spi_bitbang.h>
54 /* SSC SPI Controller */
55 void __iomem *base; member
59 /* SSC SPI current transaction */
74 if (spi_st->words_remaining > FIFO_SIZE) in ssc_write_tx_fifo()
77 count = spi_st->words_remaining; in ssc_write_tx_fifo()
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| D | spi-geni-qcom.c | 1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017-2018, The Linux foundation. All rights reserved.
6 #include <linux/dma-mapping.h>
7 #include <linux/dma/qcom-gpi-dma.h>
16 #include <linux/soc/qcom/geni-se.h>
17 #include <linux/spi/spi.h>
20 /* SPI SE specific registers and respective register fields */
59 /* M_CMD OP codes for SPI */
66 /* M_CMD params for SPI */
108 struct geni_se *se = &mas->se; in spi_slv_setup()
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| D | spi-uniphier.c | 1 // SPDX-License-Identifier: GPL-2.0
2 // spi-uniphier.c - Socionext UniPhier SPI controller driver
4 // Copyright 2016-2018 Socionext Inc.
16 #include <linux/spi/spi.h>
26 void __iomem *base; member
113 val = readl(priv->base + SSI_IE); in uniphier_spi_irq_enable()
115 writel(val, priv->base + SSI_IE); in uniphier_spi_irq_enable()
123 val = readl(priv->base + SSI_IE); in uniphier_spi_irq_disable()
125 writel(val, priv->base + SSI_IE); in uniphier_spi_irq_disable()
128 static void uniphier_spi_set_mode(struct spi_device *spi) in uniphier_spi_set_mode() argument
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| D | spi-slave-mt27xx.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 #include <linux/dma-mapping.h>
12 #include <linux/spi/spi.h>
68 void __iomem *base; member
90 { .compatible = "mediatek,mt2712-spi-slave",
92 { .compatible = "mediatek,mt8195-spi-slave",
102 reg_val = readl(mdata->base + SPIS_DMA_CFG_REG); in mtk_spi_slave_disable_dma()
105 writel(reg_val, mdata->base + SPIS_DMA_CFG_REG); in mtk_spi_slave_disable_dma()
112 reg_val = readl(mdata->base + SPIS_CFG_REG); in mtk_spi_slave_disable_xfer()
115 writel(reg_val, mdata->base + SPIS_CFG_REG); in mtk_spi_slave_disable_xfer()
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| D | spi-qup.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2008-2014, The Linux foundation. All rights reserved.
16 #include <linux/spi/spi.h>
18 #include <linux/dma-mapping.h>
115 #define SPI_MAX_XFER (SZ_64K - 64)
125 void __iomem *base; member
140 int w_size; /* bytes per SPI word */
153 static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer);
157 u32 opflag = readl_relaxed(controller->base + QUP_OPERATIONAL); in spi_qup_is_flag_set()
173 return controller->n_words * controller->w_size; in spi_qup_len()
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| /kernel/linux/linux-6.6/sound/pci/hda/ |
| D | cs35l56_hda_spi.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 // CS35L56 HDA audio driver SPI binding
10 #include <linux/spi/spi.h>
14 static int cs35l56_hda_spi_probe(struct spi_device *spi) in cs35l56_hda_spi_probe() argument
19 cs35l56 = devm_kzalloc(&spi->dev, sizeof(*cs35l56), GFP_KERNEL); in cs35l56_hda_spi_probe()
21 return -ENOMEM; in cs35l56_hda_spi_probe()
23 cs35l56->base.dev = &spi->dev; in cs35l56_hda_spi_probe()
24 cs35l56->base.regmap = devm_regmap_init_spi(spi, &cs35l56_regmap_spi); in cs35l56_hda_spi_probe()
25 if (IS_ERR(cs35l56->base.regmap)) { in cs35l56_hda_spi_probe()
26 ret = PTR_ERR(cs35l56->base.regmap); in cs35l56_hda_spi_probe()
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