// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2012 - 2014 Allwinner Tech * Pan Nan <[email protected]> * * Copyright (C) 2014 Maxime Ripard * Maxime Ripard <[email protected]> */ #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <linux/dmaengine.h> #include <linux/spi/spi.h> #define SUN6I_AUTOSUSPEND_TIMEOUT … #define SUN6I_FIFO_DEPTH … #define SUN8I_FIFO_DEPTH … #define SUN6I_GBL_CTL_REG … #define SUN6I_GBL_CTL_BUS_ENABLE … #define SUN6I_GBL_CTL_MASTER … #define SUN6I_GBL_CTL_TP … #define SUN6I_GBL_CTL_RST … #define SUN6I_TFR_CTL_REG … #define SUN6I_TFR_CTL_CPHA … #define SUN6I_TFR_CTL_CPOL … #define SUN6I_TFR_CTL_SPOL … #define SUN6I_TFR_CTL_CS_MASK … #define SUN6I_TFR_CTL_CS(cs) … #define SUN6I_TFR_CTL_CS_MANUAL … #define SUN6I_TFR_CTL_CS_LEVEL … #define SUN6I_TFR_CTL_DHB … #define SUN6I_TFR_CTL_SDC … #define SUN6I_TFR_CTL_FBS … #define SUN6I_TFR_CTL_SDM … #define SUN6I_TFR_CTL_XCH … #define SUN6I_INT_CTL_REG … #define SUN6I_INT_CTL_RF_RDY … #define SUN6I_INT_CTL_TF_ERQ … #define SUN6I_INT_CTL_RF_OVF … #define SUN6I_INT_CTL_TC … #define SUN6I_INT_STA_REG … #define SUN6I_FIFO_CTL_REG … #define SUN6I_FIFO_CTL_RF_RDY_TRIG_LEVEL_MASK … #define SUN6I_FIFO_CTL_RF_DRQ_EN … #define SUN6I_FIFO_CTL_RF_RDY_TRIG_LEVEL_BITS … #define SUN6I_FIFO_CTL_RF_RST … #define SUN6I_FIFO_CTL_TF_ERQ_TRIG_LEVEL_MASK … #define SUN6I_FIFO_CTL_TF_ERQ_TRIG_LEVEL_BITS … #define SUN6I_FIFO_CTL_TF_DRQ_EN … #define SUN6I_FIFO_CTL_TF_RST … #define SUN6I_FIFO_STA_REG … #define SUN6I_FIFO_STA_RF_CNT_MASK … #define SUN6I_FIFO_STA_TF_CNT_MASK … #define SUN6I_CLK_CTL_REG … #define SUN6I_CLK_CTL_CDR2_MASK … #define SUN6I_CLK_CTL_CDR2(div) … #define SUN6I_CLK_CTL_CDR1_MASK … #define SUN6I_CLK_CTL_CDR1(div) … #define SUN6I_CLK_CTL_DRS … #define SUN6I_MAX_XFER_SIZE … #define SUN6I_BURST_CNT_REG … #define SUN6I_XMIT_CNT_REG … #define SUN6I_BURST_CTL_CNT_REG … #define SUN6I_BURST_CTL_CNT_STC_MASK … #define SUN6I_BURST_CTL_CNT_DRM … #define SUN6I_BURST_CTL_CNT_QUAD_EN … #define SUN6I_TXDATA_REG … #define SUN6I_RXDATA_REG … struct sun6i_spi_cfg { … }; struct sun6i_spi { … }; static inline u32 sun6i_spi_read(struct sun6i_spi *sspi, u32 reg) { … } static inline void sun6i_spi_write(struct sun6i_spi *sspi, u32 reg, u32 value) { … } static inline u32 sun6i_spi_get_rx_fifo_count(struct sun6i_spi *sspi) { … } static inline u32 sun6i_spi_get_tx_fifo_count(struct sun6i_spi *sspi) { … } static inline void sun6i_spi_disable_interrupt(struct sun6i_spi *sspi, u32 mask) { … } static inline void sun6i_spi_drain_fifo(struct sun6i_spi *sspi) { … } static inline void sun6i_spi_fill_fifo(struct sun6i_spi *sspi) { … } static void sun6i_spi_set_cs(struct spi_device *spi, bool enable) { … } static size_t sun6i_spi_max_transfer_size(struct spi_device *spi) { … } static void sun6i_spi_dma_rx_cb(void *param) { … } static int sun6i_spi_prepare_dma(struct sun6i_spi *sspi, struct spi_transfer *tfr) { … } static int sun6i_spi_transfer_one(struct spi_controller *host, struct spi_device *spi, struct spi_transfer *tfr) { … } static irqreturn_t sun6i_spi_handler(int irq, void *dev_id) { … } static int sun6i_spi_runtime_resume(struct device *dev) { … } static int sun6i_spi_runtime_suspend(struct device *dev) { … } static bool sun6i_spi_can_dma(struct spi_controller *host, struct spi_device *spi, struct spi_transfer *xfer) { … } static int sun6i_spi_probe(struct platform_device *pdev) { … } static void sun6i_spi_remove(struct platform_device *pdev) { … } static const struct sun6i_spi_cfg sun6i_a31_spi_cfg = …; static const struct sun6i_spi_cfg sun8i_h3_spi_cfg = …; static const struct sun6i_spi_cfg sun50i_r329_spi_cfg = …; static const struct of_device_id sun6i_spi_match[] = …; MODULE_DEVICE_TABLE(of, sun6i_spi_match); static const struct dev_pm_ops sun6i_spi_pm_ops = …; static struct platform_driver sun6i_spi_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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