diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/i2c/busses/i2c-imx.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/i2c/busses/i2c-imx.c | 642 |
1 files changed, 0 insertions, 642 deletions
diff --git a/ANDROID_3.4.5/drivers/i2c/busses/i2c-imx.c b/ANDROID_3.4.5/drivers/i2c/busses/i2c-imx.c deleted file mode 100644 index dfb84b7e..00000000 --- a/ANDROID_3.4.5/drivers/i2c/busses/i2c-imx.c +++ /dev/null @@ -1,642 +0,0 @@ -/* - * Copyright (C) 2002 Motorola GSG-China - * - * 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. - * - * Author: - * Darius Augulis, Teltonika Inc. - * - * Desc.: - * Implementation of I2C Adapter/Algorithm Driver - * for I2C Bus integrated in Freescale i.MX/MXC processors - * - * Derived from Motorola GSG China I2C example driver - * - * Copyright (C) 2005 Torsten Koschorrek <koschorrek at synertronixx.de - * Copyright (C) 2005 Matthias Blaschke <blaschke at synertronixx.de - * Copyright (C) 2007 RightHand Technologies, Inc. - * Copyright (C) 2008 Darius Augulis <darius.augulis at teltonika.lt> - * - */ - -/** Includes ******************************************************************* -*******************************************************************************/ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/i2c.h> -#include <linux/io.h> -#include <linux/sched.h> -#include <linux/platform_device.h> -#include <linux/clk.h> -#include <linux/slab.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_i2c.h> - -#include <mach/irqs.h> -#include <mach/hardware.h> -#include <mach/i2c.h> - -/** Defines ******************************************************************** -*******************************************************************************/ - -/* This will be the driver name the kernel reports */ -#define DRIVER_NAME "imx-i2c" - -/* Default value */ -#define IMX_I2C_BIT_RATE 100000 /* 100kHz */ - -/* IMX I2C registers */ -#define IMX_I2C_IADR 0x00 /* i2c slave address */ -#define IMX_I2C_IFDR 0x04 /* i2c frequency divider */ -#define IMX_I2C_I2CR 0x08 /* i2c control */ -#define IMX_I2C_I2SR 0x0C /* i2c status */ -#define IMX_I2C_I2DR 0x10 /* i2c transfer data */ - -/* Bits of IMX I2C registers */ -#define I2SR_RXAK 0x01 -#define I2SR_IIF 0x02 -#define I2SR_SRW 0x04 -#define I2SR_IAL 0x10 -#define I2SR_IBB 0x20 -#define I2SR_IAAS 0x40 -#define I2SR_ICF 0x80 -#define I2CR_RSTA 0x04 -#define I2CR_TXAK 0x08 -#define I2CR_MTX 0x10 -#define I2CR_MSTA 0x20 -#define I2CR_IIEN 0x40 -#define I2CR_IEN 0x80 - -/** Variables ****************************************************************** -*******************************************************************************/ - -/* - * sorted list of clock divider, register value pairs - * taken from table 26-5, p.26-9, Freescale i.MX - * Integrated Portable System Processor Reference Manual - * Document Number: MC9328MXLRM, Rev. 5.1, 06/2007 - * - * Duplicated divider values removed from list - */ - -static u16 __initdata i2c_clk_div[50][2] = { - { 22, 0x20 }, { 24, 0x21 }, { 26, 0x22 }, { 28, 0x23 }, - { 30, 0x00 }, { 32, 0x24 }, { 36, 0x25 }, { 40, 0x26 }, - { 42, 0x03 }, { 44, 0x27 }, { 48, 0x28 }, { 52, 0x05 }, - { 56, 0x29 }, { 60, 0x06 }, { 64, 0x2A }, { 72, 0x2B }, - { 80, 0x2C }, { 88, 0x09 }, { 96, 0x2D }, { 104, 0x0A }, - { 112, 0x2E }, { 128, 0x2F }, { 144, 0x0C }, { 160, 0x30 }, - { 192, 0x31 }, { 224, 0x32 }, { 240, 0x0F }, { 256, 0x33 }, - { 288, 0x10 }, { 320, 0x34 }, { 384, 0x35 }, { 448, 0x36 }, - { 480, 0x13 }, { 512, 0x37 }, { 576, 0x14 }, { 640, 0x38 }, - { 768, 0x39 }, { 896, 0x3A }, { 960, 0x17 }, { 1024, 0x3B }, - { 1152, 0x18 }, { 1280, 0x3C }, { 1536, 0x3D }, { 1792, 0x3E }, - { 1920, 0x1B }, { 2048, 0x3F }, { 2304, 0x1C }, { 2560, 0x1D }, - { 3072, 0x1E }, { 3840, 0x1F } -}; - -struct imx_i2c_struct { - struct i2c_adapter adapter; - struct resource *res; - struct clk *clk; - void __iomem *base; - int irq; - wait_queue_head_t queue; - unsigned long i2csr; - unsigned int disable_delay; - int stopped; - unsigned int ifdr; /* IMX_I2C_IFDR */ -}; - -static const struct of_device_id i2c_imx_dt_ids[] = { - { .compatible = "fsl,imx1-i2c", }, - { /* sentinel */ } -}; - -/** Functions for IMX I2C adapter driver *************************************** -*******************************************************************************/ - -static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy) -{ - unsigned long orig_jiffies = jiffies; - unsigned int temp; - - dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - - while (1) { - temp = readb(i2c_imx->base + IMX_I2C_I2SR); - if (for_busy && (temp & I2SR_IBB)) - break; - if (!for_busy && !(temp & I2SR_IBB)) - break; - if (time_after(jiffies, orig_jiffies + msecs_to_jiffies(500))) { - dev_dbg(&i2c_imx->adapter.dev, - "<%s> I2C bus is busy\n", __func__); - return -ETIMEDOUT; - } - schedule(); - } - - return 0; -} - -static int i2c_imx_trx_complete(struct imx_i2c_struct *i2c_imx) -{ - wait_event_timeout(i2c_imx->queue, i2c_imx->i2csr & I2SR_IIF, HZ / 10); - - if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) { - dev_dbg(&i2c_imx->adapter.dev, "<%s> Timeout\n", __func__); - return -ETIMEDOUT; - } - dev_dbg(&i2c_imx->adapter.dev, "<%s> TRX complete\n", __func__); - i2c_imx->i2csr = 0; - return 0; -} - -static int i2c_imx_acked(struct imx_i2c_struct *i2c_imx) -{ - if (readb(i2c_imx->base + IMX_I2C_I2SR) & I2SR_RXAK) { - dev_dbg(&i2c_imx->adapter.dev, "<%s> No ACK\n", __func__); - return -EIO; /* No ACK */ - } - - dev_dbg(&i2c_imx->adapter.dev, "<%s> ACK received\n", __func__); - return 0; -} - -static int i2c_imx_start(struct imx_i2c_struct *i2c_imx) -{ - unsigned int temp = 0; - int result; - - dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - - clk_prepare_enable(i2c_imx->clk); - writeb(i2c_imx->ifdr, i2c_imx->base + IMX_I2C_IFDR); - /* Enable I2C controller */ - writeb(0, i2c_imx->base + IMX_I2C_I2SR); - writeb(I2CR_IEN, i2c_imx->base + IMX_I2C_I2CR); - - /* Wait controller to be stable */ - udelay(50); - - /* Start I2C transaction */ - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp |= I2CR_MSTA; - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - result = i2c_imx_bus_busy(i2c_imx, 1); - if (result) - return result; - i2c_imx->stopped = 0; - - temp |= I2CR_IIEN | I2CR_MTX | I2CR_TXAK; - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - return result; -} - -static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx) -{ - unsigned int temp = 0; - - if (!i2c_imx->stopped) { - /* Stop I2C transaction */ - dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp &= ~(I2CR_MSTA | I2CR_MTX); - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - } - if (cpu_is_mx1()) { - /* - * This delay caused by an i.MXL hardware bug. - * If no (or too short) delay, no "STOP" bit will be generated. - */ - udelay(i2c_imx->disable_delay); - } - - if (!i2c_imx->stopped) { - i2c_imx_bus_busy(i2c_imx, 0); - i2c_imx->stopped = 1; - } - - /* Disable I2C controller */ - writeb(0, i2c_imx->base + IMX_I2C_I2CR); - clk_disable_unprepare(i2c_imx->clk); -} - -static void __init i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx, - unsigned int rate) -{ - unsigned int i2c_clk_rate; - unsigned int div; - int i; - - /* Divider value calculation */ - i2c_clk_rate = clk_get_rate(i2c_imx->clk); - div = (i2c_clk_rate + rate - 1) / rate; - if (div < i2c_clk_div[0][0]) - i = 0; - else if (div > i2c_clk_div[ARRAY_SIZE(i2c_clk_div) - 1][0]) - i = ARRAY_SIZE(i2c_clk_div) - 1; - else - for (i = 0; i2c_clk_div[i][0] < div; i++); - - /* Store divider value */ - i2c_imx->ifdr = i2c_clk_div[i][1]; - - /* - * There dummy delay is calculated. - * It should be about one I2C clock period long. - * This delay is used in I2C bus disable function - * to fix chip hardware bug. - */ - i2c_imx->disable_delay = (500000U * i2c_clk_div[i][0] - + (i2c_clk_rate / 2) - 1) / (i2c_clk_rate / 2); - - /* dev_dbg() can't be used, because adapter is not yet registered */ -#ifdef CONFIG_I2C_DEBUG_BUS - printk(KERN_DEBUG "I2C: <%s> I2C_CLK=%d, REQ DIV=%d\n", - __func__, i2c_clk_rate, div); - printk(KERN_DEBUG "I2C: <%s> IFDR[IC]=0x%x, REAL DIV=%d\n", - __func__, i2c_clk_div[i][1], i2c_clk_div[i][0]); -#endif -} - -static irqreturn_t i2c_imx_isr(int irq, void *dev_id) -{ - struct imx_i2c_struct *i2c_imx = dev_id; - unsigned int temp; - - temp = readb(i2c_imx->base + IMX_I2C_I2SR); - if (temp & I2SR_IIF) { - /* save status register */ - i2c_imx->i2csr = temp; - temp &= ~I2SR_IIF; - writeb(temp, i2c_imx->base + IMX_I2C_I2SR); - wake_up(&i2c_imx->queue); - return IRQ_HANDLED; - } - - return IRQ_NONE; -} - -static int i2c_imx_write(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs) -{ - int i, result; - - dev_dbg(&i2c_imx->adapter.dev, "<%s> write slave address: addr=0x%x\n", - __func__, msgs->addr << 1); - - /* write slave address */ - writeb(msgs->addr << 1, i2c_imx->base + IMX_I2C_I2DR); - result = i2c_imx_trx_complete(i2c_imx); - if (result) - return result; - result = i2c_imx_acked(i2c_imx); - if (result) - return result; - dev_dbg(&i2c_imx->adapter.dev, "<%s> write data\n", __func__); - - /* write data */ - for (i = 0; i < msgs->len; i++) { - dev_dbg(&i2c_imx->adapter.dev, - "<%s> write byte: B%d=0x%X\n", - __func__, i, msgs->buf[i]); - writeb(msgs->buf[i], i2c_imx->base + IMX_I2C_I2DR); - result = i2c_imx_trx_complete(i2c_imx); - if (result) - return result; - result = i2c_imx_acked(i2c_imx); - if (result) - return result; - } - return 0; -} - -static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs) -{ - int i, result; - unsigned int temp; - - dev_dbg(&i2c_imx->adapter.dev, - "<%s> write slave address: addr=0x%x\n", - __func__, (msgs->addr << 1) | 0x01); - - /* write slave address */ - writeb((msgs->addr << 1) | 0x01, i2c_imx->base + IMX_I2C_I2DR); - result = i2c_imx_trx_complete(i2c_imx); - if (result) - return result; - result = i2c_imx_acked(i2c_imx); - if (result) - return result; - - dev_dbg(&i2c_imx->adapter.dev, "<%s> setup bus\n", __func__); - - /* setup bus to read data */ - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp &= ~I2CR_MTX; - if (msgs->len - 1) - temp &= ~I2CR_TXAK; - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - readb(i2c_imx->base + IMX_I2C_I2DR); /* dummy read */ - - dev_dbg(&i2c_imx->adapter.dev, "<%s> read data\n", __func__); - - /* read data */ - for (i = 0; i < msgs->len; i++) { - result = i2c_imx_trx_complete(i2c_imx); - if (result) - return result; - if (i == (msgs->len - 1)) { - /* It must generate STOP before read I2DR to prevent - controller from generating another clock cycle */ - dev_dbg(&i2c_imx->adapter.dev, - "<%s> clear MSTA\n", __func__); - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp &= ~(I2CR_MSTA | I2CR_MTX); - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - i2c_imx_bus_busy(i2c_imx, 0); - i2c_imx->stopped = 1; - } else if (i == (msgs->len - 2)) { - dev_dbg(&i2c_imx->adapter.dev, - "<%s> set TXAK\n", __func__); - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp |= I2CR_TXAK; - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - } - msgs->buf[i] = readb(i2c_imx->base + IMX_I2C_I2DR); - dev_dbg(&i2c_imx->adapter.dev, - "<%s> read byte: B%d=0x%X\n", - __func__, i, msgs->buf[i]); - } - return 0; -} - -static int i2c_imx_xfer(struct i2c_adapter *adapter, - struct i2c_msg *msgs, int num) -{ - unsigned int i, temp; - int result; - struct imx_i2c_struct *i2c_imx = i2c_get_adapdata(adapter); - - dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - - /* Start I2C transfer */ - result = i2c_imx_start(i2c_imx); - if (result) - goto fail0; - - /* read/write data */ - for (i = 0; i < num; i++) { - if (i) { - dev_dbg(&i2c_imx->adapter.dev, - "<%s> repeated start\n", __func__); - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - temp |= I2CR_RSTA; - writeb(temp, i2c_imx->base + IMX_I2C_I2CR); - result = i2c_imx_bus_busy(i2c_imx, 1); - if (result) - goto fail0; - } - dev_dbg(&i2c_imx->adapter.dev, - "<%s> transfer message: %d\n", __func__, i); - /* write/read data */ -#ifdef CONFIG_I2C_DEBUG_BUS - temp = readb(i2c_imx->base + IMX_I2C_I2CR); - dev_dbg(&i2c_imx->adapter.dev, "<%s> CONTROL: IEN=%d, IIEN=%d, " - "MSTA=%d, MTX=%d, TXAK=%d, RSTA=%d\n", __func__, - (temp & I2CR_IEN ? 1 : 0), (temp & I2CR_IIEN ? 1 : 0), - (temp & I2CR_MSTA ? 1 : 0), (temp & I2CR_MTX ? 1 : 0), - (temp & I2CR_TXAK ? 1 : 0), (temp & I2CR_RSTA ? 1 : 0)); - temp = readb(i2c_imx->base + IMX_I2C_I2SR); - dev_dbg(&i2c_imx->adapter.dev, - "<%s> STATUS: ICF=%d, IAAS=%d, IBB=%d, " - "IAL=%d, SRW=%d, IIF=%d, RXAK=%d\n", __func__, - (temp & I2SR_ICF ? 1 : 0), (temp & I2SR_IAAS ? 1 : 0), - (temp & I2SR_IBB ? 1 : 0), (temp & I2SR_IAL ? 1 : 0), - (temp & I2SR_SRW ? 1 : 0), (temp & I2SR_IIF ? 1 : 0), - (temp & I2SR_RXAK ? 1 : 0)); -#endif - if (msgs[i].flags & I2C_M_RD) - result = i2c_imx_read(i2c_imx, &msgs[i]); - else - result = i2c_imx_write(i2c_imx, &msgs[i]); - if (result) - goto fail0; - } - -fail0: - /* Stop I2C transfer */ - i2c_imx_stop(i2c_imx); - - dev_dbg(&i2c_imx->adapter.dev, "<%s> exit with: %s: %d\n", __func__, - (result < 0) ? "error" : "success msg", - (result < 0) ? result : num); - return (result < 0) ? result : num; -} - -static u32 i2c_imx_func(struct i2c_adapter *adapter) -{ - return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; -} - -static struct i2c_algorithm i2c_imx_algo = { - .master_xfer = i2c_imx_xfer, - .functionality = i2c_imx_func, -}; - -static int __init i2c_imx_probe(struct platform_device *pdev) -{ - struct imx_i2c_struct *i2c_imx; - struct resource *res; - struct imxi2c_platform_data *pdata = pdev->dev.platform_data; - void __iomem *base; - resource_size_t res_size; - int irq, bitrate; - int ret; - - dev_dbg(&pdev->dev, "<%s>\n", __func__); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "can't get device resources\n"); - return -ENOENT; - } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "can't get irq number\n"); - return -ENOENT; - } - - res_size = resource_size(res); - - if (!request_mem_region(res->start, res_size, DRIVER_NAME)) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - return -EBUSY; - } - - base = ioremap(res->start, res_size); - if (!base) { - dev_err(&pdev->dev, "ioremap failed\n"); - ret = -EIO; - goto fail1; - } - - i2c_imx = kzalloc(sizeof(struct imx_i2c_struct), GFP_KERNEL); - if (!i2c_imx) { - dev_err(&pdev->dev, "can't allocate interface\n"); - ret = -ENOMEM; - goto fail2; - } - - /* Setup i2c_imx driver structure */ - strcpy(i2c_imx->adapter.name, pdev->name); - i2c_imx->adapter.owner = THIS_MODULE; - i2c_imx->adapter.algo = &i2c_imx_algo; - i2c_imx->adapter.dev.parent = &pdev->dev; - i2c_imx->adapter.nr = pdev->id; - i2c_imx->adapter.dev.of_node = pdev->dev.of_node; - i2c_imx->irq = irq; - i2c_imx->base = base; - i2c_imx->res = res; - - /* Get I2C clock */ - i2c_imx->clk = clk_get(&pdev->dev, "i2c_clk"); - if (IS_ERR(i2c_imx->clk)) { - ret = PTR_ERR(i2c_imx->clk); - dev_err(&pdev->dev, "can't get I2C clock\n"); - goto fail3; - } - - /* Request IRQ */ - ret = request_irq(i2c_imx->irq, i2c_imx_isr, 0, pdev->name, i2c_imx); - if (ret) { - dev_err(&pdev->dev, "can't claim irq %d\n", i2c_imx->irq); - goto fail4; - } - - /* Init queue */ - init_waitqueue_head(&i2c_imx->queue); - - /* Set up adapter data */ - i2c_set_adapdata(&i2c_imx->adapter, i2c_imx); - - /* Set up clock divider */ - bitrate = IMX_I2C_BIT_RATE; - ret = of_property_read_u32(pdev->dev.of_node, - "clock-frequency", &bitrate); - if (ret < 0 && pdata && pdata->bitrate) - bitrate = pdata->bitrate; - i2c_imx_set_clk(i2c_imx, bitrate); - - /* Set up chip registers to defaults */ - writeb(0, i2c_imx->base + IMX_I2C_I2CR); - writeb(0, i2c_imx->base + IMX_I2C_I2SR); - - /* Add I2C adapter */ - ret = i2c_add_numbered_adapter(&i2c_imx->adapter); - if (ret < 0) { - dev_err(&pdev->dev, "registration failed\n"); - goto fail5; - } - - of_i2c_register_devices(&i2c_imx->adapter); - - /* Set up platform driver data */ - platform_set_drvdata(pdev, i2c_imx); - - dev_dbg(&i2c_imx->adapter.dev, "claimed irq %d\n", i2c_imx->irq); - dev_dbg(&i2c_imx->adapter.dev, "device resources from 0x%x to 0x%x\n", - i2c_imx->res->start, i2c_imx->res->end); - dev_dbg(&i2c_imx->adapter.dev, "allocated %d bytes at 0x%x \n", - res_size, i2c_imx->res->start); - dev_dbg(&i2c_imx->adapter.dev, "adapter name: \"%s\"\n", - i2c_imx->adapter.name); - dev_dbg(&i2c_imx->adapter.dev, "IMX I2C adapter registered\n"); - - return 0; /* Return OK */ - -fail5: - free_irq(i2c_imx->irq, i2c_imx); -fail4: - clk_put(i2c_imx->clk); -fail3: - kfree(i2c_imx); -fail2: - iounmap(base); -fail1: - release_mem_region(res->start, resource_size(res)); - return ret; /* Return error number */ -} - -static int __exit i2c_imx_remove(struct platform_device *pdev) -{ - struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev); - - /* remove adapter */ - dev_dbg(&i2c_imx->adapter.dev, "adapter removed\n"); - i2c_del_adapter(&i2c_imx->adapter); - platform_set_drvdata(pdev, NULL); - - /* free interrupt */ - free_irq(i2c_imx->irq, i2c_imx); - - /* setup chip registers to defaults */ - writeb(0, i2c_imx->base + IMX_I2C_IADR); - writeb(0, i2c_imx->base + IMX_I2C_IFDR); - writeb(0, i2c_imx->base + IMX_I2C_I2CR); - writeb(0, i2c_imx->base + IMX_I2C_I2SR); - - clk_put(i2c_imx->clk); - - iounmap(i2c_imx->base); - release_mem_region(i2c_imx->res->start, resource_size(i2c_imx->res)); - kfree(i2c_imx); - return 0; -} - -static struct platform_driver i2c_imx_driver = { - .remove = __exit_p(i2c_imx_remove), - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - .of_match_table = i2c_imx_dt_ids, - } -}; - -static int __init i2c_adap_imx_init(void) -{ - return platform_driver_probe(&i2c_imx_driver, i2c_imx_probe); -} -subsys_initcall(i2c_adap_imx_init); - -static void __exit i2c_adap_imx_exit(void) -{ - platform_driver_unregister(&i2c_imx_driver); -} -module_exit(i2c_adap_imx_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Darius Augulis"); -MODULE_DESCRIPTION("I2C adapter driver for IMX I2C bus"); -MODULE_ALIAS("platform:" DRIVER_NAME); |