spi.c (59c8231089be96165735585694a801ae58ec6c95) spi.c (d1eba93bd0fcd3f699cb8d666bc97788ee85d557)
1/*
2 * SPI init/core code
3 *
4 * Copyright (C) 2005 David Brownell
5 * Copyright (C) 2008 Secret Lab Technologies Ltd.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by

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79static struct device_attribute dev_attr_spi_master_##field = { \
80 .attr = { .name = file, .mode = S_IRUGO }, \
81 .show = spi_master_##field##_show, \
82}; \
83static ssize_t spi_device_##field##_show(struct device *dev, \
84 struct device_attribute *attr, \
85 char *buf) \
86{ \
1/*
2 * SPI init/core code
3 *
4 * Copyright (C) 2005 David Brownell
5 * Copyright (C) 2008 Secret Lab Technologies Ltd.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by

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79static struct device_attribute dev_attr_spi_master_##field = { \
80 .attr = { .name = file, .mode = S_IRUGO }, \
81 .show = spi_master_##field##_show, \
82}; \
83static ssize_t spi_device_##field##_show(struct device *dev, \
84 struct device_attribute *attr, \
85 char *buf) \
86{ \
87 struct spi_device *spi = container_of(dev, \
88 struct spi_device, dev); \
87 struct spi_device *spi = to_spi_device(dev); \
89 return spi_statistics_##field##_show(&spi->statistics, buf); \
90} \
91static struct device_attribute dev_attr_spi_device_##field = { \
92 .attr = { .name = file, .mode = S_IRUGO }, \
93 .show = spi_device_##field##_show, \
94}
95
96#define SPI_STATISTICS_SHOW_NAME(name, file, field, format_string) \

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371{
372 const struct spi_driver *sdrv = to_spi_driver(dev->driver);
373
374 sdrv->shutdown(to_spi_device(dev));
375}
376
377/**
378 * __spi_register_driver - register a SPI driver
88 return spi_statistics_##field##_show(&spi->statistics, buf); \
89} \
90static struct device_attribute dev_attr_spi_device_##field = { \
91 .attr = { .name = file, .mode = S_IRUGO }, \
92 .show = spi_device_##field##_show, \
93}
94
95#define SPI_STATISTICS_SHOW_NAME(name, file, field, format_string) \

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370{
371 const struct spi_driver *sdrv = to_spi_driver(dev->driver);
372
373 sdrv->shutdown(to_spi_device(dev));
374}
375
376/**
377 * __spi_register_driver - register a SPI driver
379 * @owner: owner module of the driver to register
380 * @sdrv: the driver to register
381 * Context: can sleep
382 *
383 * Return: zero on success, else a negative error code.
384 */
385int __spi_register_driver(struct module *owner, struct spi_driver *sdrv)
386{
387 sdrv->driver.owner = owner;

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1700 master = kzalloc(size + sizeof(*master), GFP_KERNEL);
1701 if (!master)
1702 return NULL;
1703
1704 device_initialize(&master->dev);
1705 master->bus_num = -1;
1706 master->num_chipselect = 1;
1707 master->dev.class = &spi_master_class;
378 * @sdrv: the driver to register
379 * Context: can sleep
380 *
381 * Return: zero on success, else a negative error code.
382 */
383int __spi_register_driver(struct module *owner, struct spi_driver *sdrv)
384{
385 sdrv->driver.owner = owner;

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1698 master = kzalloc(size + sizeof(*master), GFP_KERNEL);
1699 if (!master)
1700 return NULL;
1701
1702 device_initialize(&master->dev);
1703 master->bus_num = -1;
1704 master->num_chipselect = 1;
1705 master->dev.class = &spi_master_class;
1708 master->dev.parent = dev;
1706 master->dev.parent = get_device(dev);
1709 spi_master_set_devdata(master, &master[1]);
1710
1711 return master;
1712}
1713EXPORT_SYMBOL_GPL(spi_alloc_master);
1714
1715#ifdef CONFIG_OF
1716static int of_spi_register_master(struct spi_master *master)

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2126 }
2127
2128 /**
2129 * Set transfer bits_per_word and max speed as spi device default if
2130 * it is not set for this transfer.
2131 * Set transfer tx_nbits and rx_nbits as single transfer default
2132 * (SPI_NBITS_SINGLE) if it is not set for this transfer.
2133 */
1707 spi_master_set_devdata(master, &master[1]);
1708
1709 return master;
1710}
1711EXPORT_SYMBOL_GPL(spi_alloc_master);
1712
1713#ifdef CONFIG_OF
1714static int of_spi_register_master(struct spi_master *master)

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2124 }
2125
2126 /**
2127 * Set transfer bits_per_word and max speed as spi device default if
2128 * it is not set for this transfer.
2129 * Set transfer tx_nbits and rx_nbits as single transfer default
2130 * (SPI_NBITS_SINGLE) if it is not set for this transfer.
2131 */
2134 message->frame_length = 0;
2135 list_for_each_entry(xfer, &message->transfers, transfer_list) {
2136 message->frame_length += xfer->len;
2137 if (!xfer->bits_per_word)
2138 xfer->bits_per_word = spi->bits_per_word;
2139
2140 if (!xfer->speed_hz)
2141 xfer->speed_hz = spi->max_speed_hz;
2142 if (!xfer->speed_hz)

--- 568 unchanged lines hidden --- 		2132 list_for_each_entry(xfer, &message->transfers, transfer_list) {
2133 message->frame_length += xfer->len;
2134 if (!xfer->bits_per_word)
2135 xfer->bits_per_word = spi->bits_per_word;
2136
2137 if (!xfer->speed_hz)
2138 xfer->speed_hz = spi->max_speed_hz;
2139 if (!xfer->speed_hz)

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