diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.10/009-bcm2708-spi-driver.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-3.10/009-bcm2708-spi-driver.patch | 659 |
1 files changed, 659 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.10/009-bcm2708-spi-driver.patch b/target/linux/brcm2708/patches-3.10/009-bcm2708-spi-driver.patch new file mode 100644 index 0000000..ffddc14 --- /dev/null +++ b/target/linux/brcm2708/patches-3.10/009-bcm2708-spi-driver.patch @@ -0,0 +1,659 @@ +diff -urN linux-3.10/drivers/spi/Kconfig linux-rpi-3.10.y/drivers/spi/Kconfig +--- linux-3.10/drivers/spi/Kconfig 2013-06-30 23:13:29.000000000 +0100 ++++ linux-rpi-3.10.y/drivers/spi/Kconfig 2013-07-06 15:25:50.000000000 +0100 +@@ -86,6 +86,14 @@ + is for the regular SPI controller. Slave mode operation is not also + not supported. + ++config SPI_BCM2708 ++ tristate "BCM2708 SPI controller driver (SPI0)" ++ depends on MACH_BCM2708 ++ help ++ This selects a driver for the Broadcom BCM2708 SPI master (SPI0). This ++ driver is not compatible with the "Universal SPI Master" or the SPI slave ++ device. ++ + config SPI_BFIN5XX + tristate "SPI controller driver for ADI Blackfin5xx" + depends on BLACKFIN +diff -urN linux-3.10/drivers/spi/Makefile linux-rpi-3.10.y/drivers/spi/Makefile +--- linux-3.10/drivers/spi/Makefile 2013-06-30 23:13:29.000000000 +0100 ++++ linux-rpi-3.10.y/drivers/spi/Makefile 2013-07-06 15:25:50.000000000 +0100 +@@ -17,6 +17,7 @@ + obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o + obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o + obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o ++obj-$(CONFIG_SPI_BCM2708) += spi-bcm2708.o + obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o + obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o + obj-$(CONFIG_SPI_BUTTERFLY) += spi-butterfly.o +diff -urN linux-3.10/drivers/spi/spi-bcm2708.c linux-rpi-3.10.y/drivers/spi/spi-bcm2708.c +--- linux-3.10/drivers/spi/spi-bcm2708.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-rpi-3.10.y/drivers/spi/spi-bcm2708.c 2013-07-06 15:25:50.000000000 +0100 +@@ -0,0 +1,626 @@ ++/* ++ * Driver for Broadcom BCM2708 SPI Controllers ++ * ++ * Copyright (C) 2012 Chris Boot ++ * ++ * This driver is inspired by: ++ * spi-ath79.c, Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org> ++ * spi-atmel.c, Copyright (C) 2006 Atmel Corporation ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License as published by ++ * the Free Software Foundation; either version 2 of the License, or ++ * (at your option) any later version. ++ * ++ * 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. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/spinlock.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/platform_device.h> ++#include <linux/io.h> ++#include <linux/spi/spi.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/log2.h> ++#include <linux/sched.h> ++#include <linux/wait.h> ++ ++/* SPI register offsets */ ++#define SPI_CS 0x00 ++#define SPI_FIFO 0x04 ++#define SPI_CLK 0x08 ++#define SPI_DLEN 0x0c ++#define SPI_LTOH 0x10 ++#define SPI_DC 0x14 ++ ++/* Bitfields in CS */ ++#define SPI_CS_LEN_LONG 0x02000000 ++#define SPI_CS_DMA_LEN 0x01000000 ++#define SPI_CS_CSPOL2 0x00800000 ++#define SPI_CS_CSPOL1 0x00400000 ++#define SPI_CS_CSPOL0 0x00200000 ++#define SPI_CS_RXF 0x00100000 ++#define SPI_CS_RXR 0x00080000 ++#define SPI_CS_TXD 0x00040000 ++#define SPI_CS_RXD 0x00020000 ++#define SPI_CS_DONE 0x00010000 ++#define SPI_CS_LEN 0x00002000 ++#define SPI_CS_REN 0x00001000 ++#define SPI_CS_ADCS 0x00000800 ++#define SPI_CS_INTR 0x00000400 ++#define SPI_CS_INTD 0x00000200 ++#define SPI_CS_DMAEN 0x00000100 ++#define SPI_CS_TA 0x00000080 ++#define SPI_CS_CSPOL 0x00000040 ++#define SPI_CS_CLEAR_RX 0x00000020 ++#define SPI_CS_CLEAR_TX 0x00000010 ++#define SPI_CS_CPOL 0x00000008 ++#define SPI_CS_CPHA 0x00000004 ++#define SPI_CS_CS_10 0x00000002 ++#define SPI_CS_CS_01 0x00000001 ++ ++#define SPI_TIMEOUT_MS 150 ++ ++#define DRV_NAME "bcm2708_spi" ++ ++struct bcm2708_spi { ++ spinlock_t lock; ++ void __iomem *base; ++ int irq; ++ struct clk *clk; ++ bool stopping; ++ ++ struct list_head queue; ++ struct workqueue_struct *workq; ++ struct work_struct work; ++ struct completion done; ++ ++ const u8 *tx_buf; ++ u8 *rx_buf; ++ int len; ++}; ++ ++struct bcm2708_spi_state { ++ u32 cs; ++ u16 cdiv; ++}; ++ ++/* ++ * This function sets the ALT mode on the SPI pins so that we can use them with ++ * the SPI hardware. ++ * ++ * FIXME: This is a hack. Use pinmux / pinctrl. ++ */ ++static void bcm2708_init_pinmode(void) ++{ ++#define INP_GPIO(g) *(gpio+((g)/10)) &= ~(7<<(((g)%10)*3)) ++#define SET_GPIO_ALT(g,a) *(gpio+(((g)/10))) |= (((a)<=3?(a)+4:(a)==4?3:2)<<(((g)%10)*3)) ++ ++ int pin; ++ u32 *gpio = ioremap(0x20200000, SZ_16K); ++ ++ /* SPI is on GPIO 7..11 */ ++ for (pin = 7; pin <= 11; pin++) { ++ INP_GPIO(pin); /* set mode to GPIO input first */ ++ SET_GPIO_ALT(pin, 0); /* set mode to ALT 0 */ ++ } ++ ++ iounmap(gpio); ++ ++#undef INP_GPIO ++#undef SET_GPIO_ALT ++} ++ ++static inline u32 bcm2708_rd(struct bcm2708_spi *bs, unsigned reg) ++{ ++ return readl(bs->base + reg); ++} ++ ++static inline void bcm2708_wr(struct bcm2708_spi *bs, unsigned reg, u32 val) ++{ ++ writel(val, bs->base + reg); ++} ++ ++static inline void bcm2708_rd_fifo(struct bcm2708_spi *bs, int len) ++{ ++ u8 byte; ++ ++ while (len--) { ++ byte = bcm2708_rd(bs, SPI_FIFO); ++ if (bs->rx_buf) ++ *bs->rx_buf++ = byte; ++ } ++} ++ ++static inline void bcm2708_wr_fifo(struct bcm2708_spi *bs, int len) ++{ ++ u8 byte; ++ u16 val; ++ ++ if (len > bs->len) ++ len = bs->len; ++ ++ if (unlikely(bcm2708_rd(bs, SPI_CS) & SPI_CS_LEN)) { ++ /* LoSSI mode */ ++ if (unlikely(len % 2)) { ++ printk(KERN_ERR"bcm2708_wr_fifo: length must be even, skipping.\n"); ++ bs->len = 0; ++ return; ++ } ++ while (len) { ++ if (bs->tx_buf) { ++ val = *(const u16 *)bs->tx_buf; ++ bs->tx_buf += 2; ++ } else ++ val = 0; ++ bcm2708_wr(bs, SPI_FIFO, val); ++ bs->len -= 2; ++ len -= 2; ++ } ++ return; ++ } ++ ++ while (len--) { ++ byte = bs->tx_buf ? *bs->tx_buf++ : 0; ++ bcm2708_wr(bs, SPI_FIFO, byte); ++ bs->len--; ++ } ++} ++ ++static irqreturn_t bcm2708_spi_interrupt(int irq, void *dev_id) ++{ ++ struct spi_master *master = dev_id; ++ struct bcm2708_spi *bs = spi_master_get_devdata(master); ++ u32 cs; ++ ++ spin_lock(&bs->lock); ++ ++ cs = bcm2708_rd(bs, SPI_CS); ++ ++ if (cs & SPI_CS_DONE) { ++ if (bs->len) { /* first interrupt in a transfer */ ++ /* fill the TX fifo with up to 16 bytes */ ++ bcm2708_wr_fifo(bs, 16); ++ } else { /* transfer complete */ ++ /* disable interrupts */ ++ cs &= ~(SPI_CS_INTR | SPI_CS_INTD); ++ bcm2708_wr(bs, SPI_CS, cs); ++ ++ /* drain RX FIFO */ ++ while (cs & SPI_CS_RXD) { ++ bcm2708_rd_fifo(bs, 1); ++ cs = bcm2708_rd(bs, SPI_CS); ++ } ++ ++ /* wake up our bh */ ++ complete(&bs->done); ++ } ++ } else if (cs & SPI_CS_RXR) { ++ /* read 12 bytes of data */ ++ bcm2708_rd_fifo(bs, 12); ++ ++ /* write up to 12 bytes */ ++ bcm2708_wr_fifo(bs, 12); ++ } ++ ++ spin_unlock(&bs->lock); ++ ++ return IRQ_HANDLED; ++} ++ ++static int bcm2708_setup_state(struct spi_master *master, ++ struct device *dev, struct bcm2708_spi_state *state, ++ u32 hz, u8 csel, u8 mode, u8 bpw) ++{ ++ struct bcm2708_spi *bs = spi_master_get_devdata(master); ++ int cdiv; ++ unsigned long bus_hz; ++ u32 cs = 0; ++ ++ bus_hz = clk_get_rate(bs->clk); ++ ++ if (hz >= bus_hz) { ++ cdiv = 2; /* bus_hz / 2 is as fast as we can go */ ++ } else if (hz) { ++ cdiv = DIV_ROUND_UP(bus_hz, hz); ++ ++ /* CDIV must be a power of 2, so round up */ ++ cdiv = roundup_pow_of_two(cdiv); ++ ++ if (cdiv > 65536) { ++ dev_dbg(dev, ++ "setup: %d Hz too slow, cdiv %u; min %ld Hz\n", ++ hz, cdiv, bus_hz / 65536); ++ return -EINVAL; ++ } else if (cdiv == 65536) { ++ cdiv = 0; ++ } else if (cdiv == 1) { ++ cdiv = 2; /* 1 gets rounded down to 0; == 65536 */ ++ } ++ } else { ++ cdiv = 0; ++ } ++ ++ switch (bpw) { ++ case 8: ++ break; ++ case 9: ++ /* Reading in LoSSI mode is a special case. See 'BCM2835 ARM Peripherals' datasheet */ ++ cs |= SPI_CS_LEN; ++ break; ++ default: ++ dev_dbg(dev, "setup: invalid bits_per_word %u (must be 8 or 9)\n", ++ bpw); ++ return -EINVAL; ++ } ++ ++ if (mode & SPI_CPOL) ++ cs |= SPI_CS_CPOL; ++ if (mode & SPI_CPHA) ++ cs |= SPI_CS_CPHA; ++ ++ if (!(mode & SPI_NO_CS)) { ++ if (mode & SPI_CS_HIGH) { ++ cs |= SPI_CS_CSPOL; ++ cs |= SPI_CS_CSPOL0 << csel; ++ } ++ ++ cs |= csel; ++ } else { ++ cs |= SPI_CS_CS_10 | SPI_CS_CS_01; ++ } ++ ++ if (state) { ++ state->cs = cs; ++ state->cdiv = cdiv; ++ dev_dbg(dev, "setup: want %d Hz; " ++ "bus_hz=%lu / cdiv=%u == %lu Hz; " ++ "mode %u: cs 0x%08X\n", ++ hz, bus_hz, cdiv, bus_hz/cdiv, mode, cs); ++ } ++ ++ return 0; ++} ++ ++static int bcm2708_process_transfer(struct bcm2708_spi *bs, ++ struct spi_message *msg, struct spi_transfer *xfer) ++{ ++ struct spi_device *spi = msg->spi; ++ struct bcm2708_spi_state state, *stp; ++ int ret; ++ u32 cs; ++ ++ if (bs->stopping) ++ return -ESHUTDOWN; ++ ++ if (xfer->bits_per_word || xfer->speed_hz) { ++ ret = bcm2708_setup_state(spi->master, &spi->dev, &state, ++ xfer->speed_hz ? xfer->speed_hz : spi->max_speed_hz, ++ spi->chip_select, spi->mode, ++ xfer->bits_per_word ? xfer->bits_per_word : ++ spi->bits_per_word); ++ if (ret) ++ return ret; ++ ++ stp = &state; ++ } else { ++ stp = spi->controller_state; ++ } ++ ++ INIT_COMPLETION(bs->done); ++ bs->tx_buf = xfer->tx_buf; ++ bs->rx_buf = xfer->rx_buf; ++ bs->len = xfer->len; ++ ++ cs = stp->cs | SPI_CS_INTR | SPI_CS_INTD | SPI_CS_TA; ++ ++ bcm2708_wr(bs, SPI_CLK, stp->cdiv); ++ bcm2708_wr(bs, SPI_CS, cs); ++ ++ ret = wait_for_completion_timeout(&bs->done, ++ msecs_to_jiffies(SPI_TIMEOUT_MS)); ++ if (ret == 0) { ++ dev_err(&spi->dev, "transfer timed out\n"); ++ return -ETIMEDOUT; ++ } ++ ++ if (xfer->delay_usecs) ++ udelay(xfer->delay_usecs); ++ ++ if (list_is_last(&xfer->transfer_list, &msg->transfers) || ++ xfer->cs_change) { ++ /* clear TA and interrupt flags */ ++ bcm2708_wr(bs, SPI_CS, stp->cs); ++ } ++ ++ msg->actual_length += (xfer->len - bs->len); ++ ++ return 0; ++} ++ ++static void bcm2708_work(struct work_struct *work) ++{ ++ struct bcm2708_spi *bs = container_of(work, struct bcm2708_spi, work); ++ unsigned long flags; ++ struct spi_message *msg; ++ struct spi_transfer *xfer; ++ int status = 0; ++ ++ spin_lock_irqsave(&bs->lock, flags); ++ while (!list_empty(&bs->queue)) { ++ msg = list_first_entry(&bs->queue, struct spi_message, queue); ++ list_del_init(&msg->queue); ++ spin_unlock_irqrestore(&bs->lock, flags); ++ ++ list_for_each_entry(xfer, &msg->transfers, transfer_list) { ++ status = bcm2708_process_transfer(bs, msg, xfer); ++ if (status) ++ break; ++ } ++ ++ msg->status = status; ++ msg->complete(msg->context); ++ ++ spin_lock_irqsave(&bs->lock, flags); ++ } ++ spin_unlock_irqrestore(&bs->lock, flags); ++} ++ ++static int bcm2708_spi_setup(struct spi_device *spi) ++{ ++ struct bcm2708_spi *bs = spi_master_get_devdata(spi->master); ++ struct bcm2708_spi_state *state; ++ int ret; ++ ++ if (bs->stopping) ++ return -ESHUTDOWN; ++ ++ if (!(spi->mode & SPI_NO_CS) && ++ (spi->chip_select > spi->master->num_chipselect)) { ++ dev_dbg(&spi->dev, ++ "setup: invalid chipselect %u (%u defined)\n", ++ spi->chip_select, spi->master->num_chipselect); ++ return -EINVAL; ++ } ++ ++ state = spi->controller_state; ++ if (!state) { ++ state = kzalloc(sizeof(*state), GFP_KERNEL); ++ if (!state) ++ return -ENOMEM; ++ ++ spi->controller_state = state; ++ } ++ ++ ret = bcm2708_setup_state(spi->master, &spi->dev, state, ++ spi->max_speed_hz, spi->chip_select, spi->mode, ++ spi->bits_per_word); ++ if (ret < 0) { ++ kfree(state); ++ spi->controller_state = NULL; ++ return ret; ++ } ++ ++ dev_dbg(&spi->dev, ++ "setup: cd %d: %d Hz, bpw %u, mode 0x%x -> CS=%08x CDIV=%04x\n", ++ spi->chip_select, spi->max_speed_hz, spi->bits_per_word, ++ spi->mode, state->cs, state->cdiv); ++ ++ return 0; ++} ++ ++static int bcm2708_spi_transfer(struct spi_device *spi, struct spi_message *msg) ++{ ++ struct bcm2708_spi *bs = spi_master_get_devdata(spi->master); ++ struct spi_transfer *xfer; ++ int ret; ++ unsigned long flags; ++ ++ if (unlikely(list_empty(&msg->transfers))) ++ return -EINVAL; ++ ++ if (bs->stopping) ++ return -ESHUTDOWN; ++ ++ list_for_each_entry(xfer, &msg->transfers, transfer_list) { ++ if (!(xfer->tx_buf || xfer->rx_buf) && xfer->len) { ++ dev_dbg(&spi->dev, "missing rx or tx buf\n"); ++ return -EINVAL; ++ } ++ ++ if (!xfer->bits_per_word || xfer->speed_hz) ++ continue; ++ ++ ret = bcm2708_setup_state(spi->master, &spi->dev, NULL, ++ xfer->speed_hz ? xfer->speed_hz : spi->max_speed_hz, ++ spi->chip_select, spi->mode, ++ xfer->bits_per_word ? xfer->bits_per_word : ++ spi->bits_per_word); ++ if (ret) ++ return ret; ++ } ++ ++ msg->status = -EINPROGRESS; ++ msg->actual_length = 0; ++ ++ spin_lock_irqsave(&bs->lock, flags); ++ list_add_tail(&msg->queue, &bs->queue); ++ queue_work(bs->workq, &bs->work); ++ spin_unlock_irqrestore(&bs->lock, flags); ++ ++ return 0; ++} ++ ++static void bcm2708_spi_cleanup(struct spi_device *spi) ++{ ++ if (spi->controller_state) { ++ kfree(spi->controller_state); ++ spi->controller_state = NULL; ++ } ++} ++ ++static int bcm2708_spi_probe(struct platform_device *pdev) ++{ ++ struct resource *regs; ++ int irq, err = -ENOMEM; ++ struct clk *clk; ++ struct spi_master *master; ++ struct bcm2708_spi *bs; ++ ++ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!regs) { ++ dev_err(&pdev->dev, "could not get IO memory\n"); ++ return -ENXIO; ++ } ++ ++ irq = platform_get_irq(pdev, 0); ++ if (irq < 0) { ++ dev_err(&pdev->dev, "could not get IRQ\n"); ++ return irq; ++ } ++ ++ clk = clk_get(&pdev->dev, NULL); ++ if (IS_ERR(clk)) { ++ dev_err(&pdev->dev, "could not find clk: %ld\n", PTR_ERR(clk)); ++ return PTR_ERR(clk); ++ } ++ ++ bcm2708_init_pinmode(); ++ ++ master = spi_alloc_master(&pdev->dev, sizeof(*bs)); ++ if (!master) { ++ dev_err(&pdev->dev, "spi_alloc_master() failed\n"); ++ goto out_clk_put; ++ } ++ ++ /* the spi->mode bits understood by this driver: */ ++ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_NO_CS; ++ ++ master->bus_num = pdev->id; ++ master->num_chipselect = 3; ++ master->setup = bcm2708_spi_setup; ++ master->transfer = bcm2708_spi_transfer; ++ master->cleanup = bcm2708_spi_cleanup; ++ platform_set_drvdata(pdev, master); ++ ++ bs = spi_master_get_devdata(master); ++ ++ spin_lock_init(&bs->lock); ++ INIT_LIST_HEAD(&bs->queue); ++ init_completion(&bs->done); ++ INIT_WORK(&bs->work, bcm2708_work); ++ ++ bs->base = ioremap(regs->start, resource_size(regs)); ++ if (!bs->base) { ++ dev_err(&pdev->dev, "could not remap memory\n"); ++ goto out_master_put; ++ } ++ ++ bs->workq = create_singlethread_workqueue(dev_name(&pdev->dev)); ++ if (!bs->workq) { ++ dev_err(&pdev->dev, "could not create workqueue\n"); ++ goto out_iounmap; ++ } ++ ++ bs->irq = irq; ++ bs->clk = clk; ++ bs->stopping = false; ++ ++ err = request_irq(irq, bcm2708_spi_interrupt, 0, dev_name(&pdev->dev), ++ master); ++ if (err) { ++ dev_err(&pdev->dev, "could not request IRQ: %d\n", err); ++ goto out_workqueue; ++ } ++ ++ /* initialise the hardware */ ++ clk_enable(clk); ++ bcm2708_wr(bs, SPI_CS, SPI_CS_REN | SPI_CS_CLEAR_RX | SPI_CS_CLEAR_TX); ++ ++ err = spi_register_master(master); ++ if (err) { ++ dev_err(&pdev->dev, "could not register SPI master: %d\n", err); ++ goto out_free_irq; ++ } ++ ++ dev_info(&pdev->dev, "SPI Controller at 0x%08lx (irq %d)\n", ++ (unsigned long)regs->start, irq); ++ ++ return 0; ++ ++out_free_irq: ++ free_irq(bs->irq, master); ++out_workqueue: ++ destroy_workqueue(bs->workq); ++out_iounmap: ++ iounmap(bs->base); ++out_master_put: ++ spi_master_put(master); ++out_clk_put: ++ clk_put(clk); ++ return err; ++} ++ ++static int bcm2708_spi_remove(struct platform_device *pdev) ++{ ++ struct spi_master *master = platform_get_drvdata(pdev); ++ struct bcm2708_spi *bs = spi_master_get_devdata(master); ++ ++ /* reset the hardware and block queue progress */ ++ spin_lock_irq(&bs->lock); ++ bs->stopping = true; ++ bcm2708_wr(bs, SPI_CS, SPI_CS_CLEAR_RX | SPI_CS_CLEAR_TX); ++ spin_unlock_irq(&bs->lock); ++ ++ flush_work_sync(&bs->work); ++ ++ clk_disable(bs->clk); ++ clk_put(bs->clk); ++ free_irq(bs->irq, master); ++ iounmap(bs->base); ++ ++ spi_unregister_master(master); ++ ++ return 0; ++} ++ ++static struct platform_driver bcm2708_spi_driver = { ++ .driver = { ++ .name = DRV_NAME, ++ .owner = THIS_MODULE, ++ }, ++ .probe = bcm2708_spi_probe, ++ .remove = bcm2708_spi_remove, ++}; ++ ++ ++static int __init bcm2708_spi_init(void) ++{ ++ return platform_driver_probe(&bcm2708_spi_driver, bcm2708_spi_probe); ++} ++module_init(bcm2708_spi_init); ++ ++static void __exit bcm2708_spi_exit(void) ++{ ++ platform_driver_unregister(&bcm2708_spi_driver); ++} ++module_exit(bcm2708_spi_exit); ++ ++ ++//module_platform_driver(bcm2708_spi_driver); ++ ++MODULE_DESCRIPTION("SPI controller driver for Broadcom BCM2708"); ++MODULE_AUTHOR("Chris Boot <bootc@bootc.net>"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:" DRV_NAME); |