diff options
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-bcm-kona.c | 3 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-bcm2835.c | 1 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-davinci.c | 4 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-diolan-u2c.c | 16 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-imx.c | 4 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-omap.c | 30 |
6 files changed, 44 insertions, 14 deletions
diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c index 036cf03aeb61..18a74a6751a9 100644 --- a/drivers/i2c/busses/i2c-bcm-kona.c +++ b/drivers/i2c/busses/i2c-bcm-kona.c @@ -20,7 +20,6 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/io.h> -#include <linux/clk.h> #include <linux/slab.h> /* Hardware register offsets and field defintions */ @@ -891,7 +890,7 @@ static const struct of_device_id bcm_kona_i2c_of_match[] = { {.compatible = "brcm,kona-i2c",}, {}, }; -MODULE_DEVICE_TABLE(of, kona_i2c_of_match); +MODULE_DEVICE_TABLE(of, bcm_kona_i2c_of_match); static struct platform_driver bcm_kona_i2c_driver = { .driver = { diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c index d7e8600f31fb..77df97b932af 100644 --- a/drivers/i2c/busses/i2c-bcm2835.c +++ b/drivers/i2c/busses/i2c-bcm2835.c @@ -299,6 +299,7 @@ static int bcm2835_i2c_probe(struct platform_device *pdev) strlcpy(adap->name, "bcm2835 I2C adapter", sizeof(adap->name)); adap->algo = &bcm2835_i2c_algo; adap->dev.parent = &pdev->dev; + adap->dev.of_node = pdev->dev.of_node; bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0); diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index ff05d9fef4a8..af0b5830303d 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -125,12 +125,12 @@ static struct davinci_i2c_platform_data davinci_i2c_platform_data_default = { static inline void davinci_i2c_write_reg(struct davinci_i2c_dev *i2c_dev, int reg, u16 val) { - __raw_writew(val, i2c_dev->base + reg); + writew_relaxed(val, i2c_dev->base + reg); } static inline u16 davinci_i2c_read_reg(struct davinci_i2c_dev *i2c_dev, int reg) { - return __raw_readw(i2c_dev->base + reg); + return readw_relaxed(i2c_dev->base + reg); } /* Generate a pulse on the i2c clock pin. */ diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c index dae3ddfe7619..721f7ebf9a3b 100644 --- a/drivers/i2c/busses/i2c-diolan-u2c.c +++ b/drivers/i2c/busses/i2c-diolan-u2c.c @@ -25,8 +25,6 @@ #define USB_VENDOR_ID_DIOLAN 0x0abf #define USB_DEVICE_ID_DIOLAN_U2C 0x3370 -#define DIOLAN_OUT_EP 0x02 -#define DIOLAN_IN_EP 0x84 /* commands via USB, must match command ids in the firmware */ #define CMD_I2C_READ 0x01 @@ -84,6 +82,7 @@ struct i2c_diolan_u2c { u8 obuffer[DIOLAN_OUTBUF_LEN]; /* output buffer */ u8 ibuffer[DIOLAN_INBUF_LEN]; /* input buffer */ + int ep_in, ep_out; /* Endpoints */ struct usb_device *usb_dev; /* the usb device for this device */ struct usb_interface *interface;/* the interface for this device */ struct i2c_adapter adapter; /* i2c related things */ @@ -109,7 +108,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev) return -EINVAL; ret = usb_bulk_msg(dev->usb_dev, - usb_sndbulkpipe(dev->usb_dev, DIOLAN_OUT_EP), + usb_sndbulkpipe(dev->usb_dev, dev->ep_out), dev->obuffer, dev->olen, &actual, DIOLAN_USB_TIMEOUT); if (!ret) { @@ -118,7 +117,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev) tmpret = usb_bulk_msg(dev->usb_dev, usb_rcvbulkpipe(dev->usb_dev, - DIOLAN_IN_EP), + dev->ep_in), dev->ibuffer, sizeof(dev->ibuffer), &actual, DIOLAN_USB_TIMEOUT); @@ -210,7 +209,7 @@ static void diolan_flush_input(struct i2c_diolan_u2c *dev) int ret; ret = usb_bulk_msg(dev->usb_dev, - usb_rcvbulkpipe(dev->usb_dev, DIOLAN_IN_EP), + usb_rcvbulkpipe(dev->usb_dev, dev->ep_in), dev->ibuffer, sizeof(dev->ibuffer), &actual, DIOLAN_USB_TIMEOUT); if (ret < 0 || actual == 0) @@ -445,9 +444,14 @@ static void diolan_u2c_free(struct i2c_diolan_u2c *dev) static int diolan_u2c_probe(struct usb_interface *interface, const struct usb_device_id *id) { + struct usb_host_interface *hostif = interface->cur_altsetting; struct i2c_diolan_u2c *dev; int ret; + if (hostif->desc.bInterfaceNumber != 0 + || hostif->desc.bNumEndpoints < 2) + return -ENODEV; + /* allocate memory for our device state and initialize it */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { @@ -455,6 +459,8 @@ static int diolan_u2c_probe(struct usb_interface *interface, ret = -ENOMEM; goto error; } + dev->ep_out = hostif->endpoint[0].desc.bEndpointAddress; + dev->ep_in = hostif->endpoint[1].desc.bEndpointAddress; dev->usb_dev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 1d7efa3169cd..d0cfbb4cb964 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -312,7 +312,9 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx) dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - clk_prepare_enable(i2c_imx->clk); + result = clk_prepare_enable(i2c_imx->clk); + if (result) + return result; imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR); /* Enable I2C controller */ imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR); diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index a6a891d7970d..90dcc2eaac5f 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -266,13 +266,13 @@ static const u8 reg_map_ip_v2[] = { static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev, int reg, u16 val) { - __raw_writew(val, i2c_dev->base + + writew_relaxed(val, i2c_dev->base + (i2c_dev->regs[reg] << i2c_dev->reg_shift)); } static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg) { - return __raw_readw(i2c_dev->base + + return readw_relaxed(i2c_dev->base + (i2c_dev->regs[reg] << i2c_dev->reg_shift)); } @@ -1037,6 +1037,20 @@ static const struct i2c_algorithm omap_i2c_algo = { }; #ifdef CONFIG_OF +static struct omap_i2c_bus_platform_data omap2420_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_NO_FIFO | + OMAP_I2C_FLAG_SIMPLE_CLOCK | + OMAP_I2C_FLAG_16BIT_DATA_REG | + OMAP_I2C_FLAG_BUS_SHIFT_2, +}; + +static struct omap_i2c_bus_platform_data omap2430_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_BUS_SHIFT_2 | + OMAP_I2C_FLAG_FORCE_19200_INT_CLK, +}; + static struct omap_i2c_bus_platform_data omap3_pdata = { .rev = OMAP_I2C_IP_VERSION_1, .flags = OMAP_I2C_FLAG_BUS_SHIFT_2, @@ -1055,6 +1069,14 @@ static const struct of_device_id omap_i2c_of_match[] = { .compatible = "ti,omap3-i2c", .data = &omap3_pdata, }, + { + .compatible = "ti,omap2430-i2c", + .data = &omap2430_pdata, + }, + { + .compatible = "ti,omap2420-i2c", + .data = &omap2420_pdata, + }, { }, }; MODULE_DEVICE_TABLE(of, omap_i2c_of_match); @@ -1140,9 +1162,9 @@ omap_i2c_probe(struct platform_device *pdev) * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2. * On omap1/3/2 Offset 4 is IE Reg the bit [15:14] is 0 at reset. * Also since the omap_i2c_read_reg uses reg_map_ip_* a - * raw_readw is done. + * readw_relaxed is done. */ - rev = __raw_readw(dev->base + 0x04); + rev = readw_relaxed(dev->base + 0x04); dev->scheme = OMAP_I2C_SCHEME(rev); switch (dev->scheme) { |