i2c-ibm_iic: Whitespace cleanup
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Stefan Roese
Jean Delvare
Родитель
ccf60d8571
Коммит
217bcec442
|
|
@ -6,7 +6,7 @@
|
|||
* Copyright (c) 2003, 2004 Zultys Technologies.
|
||||
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
|
||||
*
|
||||
* Based on original work by
|
||||
* Based on original work by
|
||||
* Ian DaSilva <idasilva@mvista.com>
|
||||
* Armin Kuster <akuster@mvista.com>
|
||||
* Matt Porter <mporter@mvista.com>
|
||||
|
|
@ -86,8 +86,8 @@ static void dump_iic_regs(const char* header, struct ibm_iic_private* dev)
|
|||
KERN_DEBUG " sts = 0x%02x, extsts = 0x%02x\n"
|
||||
KERN_DEBUG " clkdiv = 0x%02x, xfrcnt = 0x%02x\n"
|
||||
KERN_DEBUG " xtcntlss = 0x%02x, directcntl = 0x%02x\n",
|
||||
in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts),
|
||||
in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt),
|
||||
in_8(&iic->cntl), in_8(&iic->mdcntl), in_8(&iic->sts),
|
||||
in_8(&iic->extsts), in_8(&iic->clkdiv), in_8(&iic->xfrcnt),
|
||||
in_8(&iic->xtcntlss), in_8(&iic->directcntl));
|
||||
}
|
||||
# define DUMP_REGS(h,dev) dump_iic_regs((h),(dev))
|
||||
|
|
@ -125,7 +125,7 @@ static inline void iic_interrupt_mode(struct ibm_iic_private* dev, int enable)
|
|||
{
|
||||
out_8(&dev->vaddr->intmsk, enable ? INTRMSK_EIMTC : 0);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Initialize IIC interface.
|
||||
*/
|
||||
|
|
@ -134,7 +134,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
|
|||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
|
||||
DBG("%d: init\n", dev->idx);
|
||||
|
||||
|
||||
/* Clear master address */
|
||||
out_8(&iic->lmadr, 0);
|
||||
out_8(&iic->hmadr, 0);
|
||||
|
|
@ -160,7 +160,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
|
|||
|
||||
/* Clear control register */
|
||||
out_8(&iic->cntl, 0);
|
||||
|
||||
|
||||
/* Enable interrupts if possible */
|
||||
iic_interrupt_mode(dev, dev->irq >= 0);
|
||||
|
||||
|
|
@ -171,7 +171,7 @@ static void iic_dev_init(struct ibm_iic_private* dev)
|
|||
DUMP_REGS("iic_init", dev);
|
||||
}
|
||||
|
||||
/*
|
||||
/*
|
||||
* Reset IIC interface
|
||||
*/
|
||||
static void iic_dev_reset(struct ibm_iic_private* dev)
|
||||
|
|
@ -179,42 +179,42 @@ static void iic_dev_reset(struct ibm_iic_private* dev)
|
|||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
int i;
|
||||
u8 dc;
|
||||
|
||||
|
||||
DBG("%d: soft reset\n", dev->idx);
|
||||
DUMP_REGS("reset", dev);
|
||||
|
||||
|
||||
/* Place chip in the reset state */
|
||||
out_8(&iic->xtcntlss, XTCNTLSS_SRST);
|
||||
|
||||
|
||||
/* Check if bus is free */
|
||||
dc = in_8(&iic->directcntl);
|
||||
dc = in_8(&iic->directcntl);
|
||||
if (!DIRCTNL_FREE(dc)){
|
||||
DBG("%d: trying to regain bus control\n", dev->idx);
|
||||
|
||||
|
||||
/* Try to set bus free state */
|
||||
out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC);
|
||||
|
||||
out_8(&iic->directcntl, DIRCNTL_SDAC | DIRCNTL_SCC);
|
||||
|
||||
/* Wait until we regain bus control */
|
||||
for (i = 0; i < 100; ++i){
|
||||
dc = in_8(&iic->directcntl);
|
||||
if (DIRCTNL_FREE(dc))
|
||||
break;
|
||||
|
||||
|
||||
/* Toggle SCL line */
|
||||
dc ^= DIRCNTL_SCC;
|
||||
out_8(&iic->directcntl, dc);
|
||||
udelay(10);
|
||||
dc ^= DIRCNTL_SCC;
|
||||
out_8(&iic->directcntl, dc);
|
||||
|
||||
|
||||
/* be nice */
|
||||
cond_resched();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Remove reset */
|
||||
out_8(&iic->xtcntlss, 0);
|
||||
|
||||
|
||||
/* Reinitialize interface */
|
||||
iic_dev_init(dev);
|
||||
}
|
||||
|
|
@ -324,14 +324,14 @@ static irqreturn_t iic_handler(int irq, void *dev_id)
|
|||
{
|
||||
struct ibm_iic_private* dev = (struct ibm_iic_private*)dev_id;
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
|
||||
DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n",
|
||||
|
||||
DBG2("%d: irq handler, STS = 0x%02x, EXTSTS = 0x%02x\n",
|
||||
dev->idx, in_8(&iic->sts), in_8(&iic->extsts));
|
||||
|
||||
|
||||
/* Acknowledge IRQ and wakeup iic_wait_for_tc */
|
||||
out_8(&iic->sts, STS_IRQA | STS_SCMP);
|
||||
wake_up_interruptible(&dev->wq);
|
||||
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
|
|
@ -341,19 +341,19 @@ static irqreturn_t iic_handler(int irq, void *dev_id)
|
|||
*/
|
||||
static int iic_xfer_result(struct ibm_iic_private* dev)
|
||||
{
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
|
||||
if (unlikely(in_8(&iic->sts) & STS_ERR)){
|
||||
DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx,
|
||||
DBG("%d: xfer error, EXTSTS = 0x%02x\n", dev->idx,
|
||||
in_8(&iic->extsts));
|
||||
|
||||
|
||||
/* Clear errors and possible pending IRQs */
|
||||
out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD |
|
||||
out_8(&iic->extsts, EXTSTS_IRQP | EXTSTS_IRQD |
|
||||
EXTSTS_LA | EXTSTS_ICT | EXTSTS_XFRA);
|
||||
|
||||
|
||||
/* Flush master data buffer */
|
||||
out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
|
||||
|
||||
|
||||
/* Is bus free?
|
||||
* If error happened during combined xfer
|
||||
* IIC interface is usually stuck in some strange
|
||||
|
|
@ -376,11 +376,11 @@ static void iic_abort_xfer(struct ibm_iic_private* dev)
|
|||
{
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
unsigned long x;
|
||||
|
||||
|
||||
DBG("%d: iic_abort_xfer\n", dev->idx);
|
||||
|
||||
|
||||
out_8(&iic->cntl, CNTL_HMT);
|
||||
|
||||
|
||||
/*
|
||||
* Wait for the abort command to complete.
|
||||
* It's not worth to be optimized, just poll (timeout >= 1 tick)
|
||||
|
|
@ -405,13 +405,13 @@ static void iic_abort_xfer(struct ibm_iic_private* dev)
|
|||
* Returns the number of transferred bytes or error (<0)
|
||||
*/
|
||||
static int iic_wait_for_tc(struct ibm_iic_private* dev){
|
||||
|
||||
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
int ret = 0;
|
||||
|
||||
|
||||
if (dev->irq >= 0){
|
||||
/* Interrupt mode */
|
||||
ret = wait_event_interruptible_timeout(dev->wq,
|
||||
ret = wait_event_interruptible_timeout(dev->wq,
|
||||
!(in_8(&iic->sts) & STS_PT), dev->adap.timeout * HZ);
|
||||
|
||||
if (unlikely(ret < 0))
|
||||
|
|
@ -424,37 +424,37 @@ static int iic_wait_for_tc(struct ibm_iic_private* dev){
|
|||
else {
|
||||
/* Polling mode */
|
||||
unsigned long x = jiffies + dev->adap.timeout * HZ;
|
||||
|
||||
|
||||
while (in_8(&iic->sts) & STS_PT){
|
||||
if (unlikely(time_after(jiffies, x))){
|
||||
DBG("%d: poll timeout\n", dev->idx);
|
||||
ret = -ETIMEDOUT;
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
if (unlikely(signal_pending(current))){
|
||||
DBG("%d: poll interrupted\n", dev->idx);
|
||||
ret = -ERESTARTSYS;
|
||||
break;
|
||||
}
|
||||
schedule();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (unlikely(ret < 0))
|
||||
iic_abort_xfer(dev);
|
||||
else
|
||||
ret = iic_xfer_result(dev);
|
||||
|
||||
|
||||
DBG2("%d: iic_wait_for_tc -> %d\n", dev->idx, ret);
|
||||
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Low level master transfer routine
|
||||
*/
|
||||
static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
|
||||
static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
|
||||
int combined_xfer)
|
||||
{
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
|
|
@ -465,48 +465,48 @@ static int iic_xfer_bytes(struct ibm_iic_private* dev, struct i2c_msg* pm,
|
|||
u8 cntl = (in_8(&iic->cntl) & CNTL_AMD) | CNTL_PT;
|
||||
if (pm->flags & I2C_M_RD)
|
||||
cntl |= CNTL_RW;
|
||||
|
||||
|
||||
loops = (len + 3) / 4;
|
||||
for (i = 0; i < loops; ++i, len -= 4){
|
||||
int count = len > 4 ? 4 : len;
|
||||
u8 cmd = cntl | ((count - 1) << CNTL_TCT_SHIFT);
|
||||
|
||||
|
||||
if (!(cntl & CNTL_RW))
|
||||
for (j = 0; j < count; ++j)
|
||||
out_8((void __iomem *)&iic->mdbuf, *buf++);
|
||||
|
||||
|
||||
if (i < loops - 1)
|
||||
cmd |= CNTL_CHT;
|
||||
else if (combined_xfer)
|
||||
cmd |= CNTL_RPST;
|
||||
|
||||
|
||||
DBG2("%d: xfer_bytes, %d, CNTL = 0x%02x\n", dev->idx, count, cmd);
|
||||
|
||||
|
||||
/* Start transfer */
|
||||
out_8(&iic->cntl, cmd);
|
||||
|
||||
|
||||
/* Wait for completion */
|
||||
ret = iic_wait_for_tc(dev);
|
||||
|
||||
if (unlikely(ret < 0))
|
||||
break;
|
||||
else if (unlikely(ret != count)){
|
||||
DBG("%d: xfer_bytes, requested %d, transfered %d\n",
|
||||
DBG("%d: xfer_bytes, requested %d, transfered %d\n",
|
||||
dev->idx, count, ret);
|
||||
|
||||
|
||||
/* If it's not a last part of xfer, abort it */
|
||||
if (combined_xfer || (i < loops - 1))
|
||||
iic_abort_xfer(dev);
|
||||
|
||||
|
||||
ret = -EREMOTEIO;
|
||||
break;
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
if (cntl & CNTL_RW)
|
||||
for (j = 0; j < count; ++j)
|
||||
*buf++ = in_8((void __iomem *)&iic->mdbuf);
|
||||
}
|
||||
|
||||
|
||||
return ret > 0 ? 0 : ret;
|
||||
}
|
||||
|
||||
|
|
@ -517,10 +517,10 @@ static inline void iic_address(struct ibm_iic_private* dev, struct i2c_msg* msg)
|
|||
{
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
u16 addr = msg->addr;
|
||||
|
||||
DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx,
|
||||
|
||||
DBG2("%d: iic_address, 0x%03x (%d-bit)\n", dev->idx,
|
||||
addr, msg->flags & I2C_M_TEN ? 10 : 7);
|
||||
|
||||
|
||||
if (msg->flags & I2C_M_TEN){
|
||||
out_8(&iic->cntl, CNTL_AMD);
|
||||
out_8(&iic->lmadr, addr);
|
||||
|
|
@ -537,15 +537,15 @@ static inline int iic_invalid_address(const struct i2c_msg* p)
|
|||
return (p->addr > 0x3ff) || (!(p->flags & I2C_M_TEN) && (p->addr > 0x7f));
|
||||
}
|
||||
|
||||
static inline int iic_address_neq(const struct i2c_msg* p1,
|
||||
static inline int iic_address_neq(const struct i2c_msg* p1,
|
||||
const struct i2c_msg* p2)
|
||||
{
|
||||
return (p1->addr != p2->addr)
|
||||
return (p1->addr != p2->addr)
|
||||
|| ((p1->flags & I2C_M_TEN) != (p2->flags & I2C_M_TEN));
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Generic master transfer entrypoint.
|
||||
* Generic master transfer entrypoint.
|
||||
* Returns the number of processed messages or error (<0)
|
||||
*/
|
||||
static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
|
||||
|
|
@ -553,20 +553,20 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
|
|||
struct ibm_iic_private* dev = (struct ibm_iic_private*)(i2c_get_adapdata(adap));
|
||||
volatile struct iic_regs __iomem *iic = dev->vaddr;
|
||||
int i, ret = 0;
|
||||
|
||||
|
||||
DBG2("%d: iic_xfer, %d msg(s)\n", dev->idx, num);
|
||||
|
||||
|
||||
if (!num)
|
||||
return 0;
|
||||
|
||||
|
||||
/* Check the sanity of the passed messages.
|
||||
* Uhh, generic i2c layer is more suitable place for such code...
|
||||
*/
|
||||
if (unlikely(iic_invalid_address(&msgs[0]))){
|
||||
DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx,
|
||||
DBG("%d: invalid address 0x%03x (%d-bit)\n", dev->idx,
|
||||
msgs[0].addr, msgs[0].flags & I2C_M_TEN ? 10 : 7);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
for (i = 0; i < num; ++i){
|
||||
if (unlikely(msgs[i].len <= 0)){
|
||||
if (num == 1 && !msgs[0].len){
|
||||
|
|
@ -576,7 +576,7 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
|
|||
*/
|
||||
return iic_smbus_quick(dev, &msgs[0]);
|
||||
}
|
||||
DBG("%d: invalid len %d in msg[%d]\n", dev->idx,
|
||||
DBG("%d: invalid len %d in msg[%d]\n", dev->idx,
|
||||
msgs[i].len, i);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
|
@ -585,34 +585,34 @@ static int iic_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
|
|||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Check bus state */
|
||||
if (unlikely((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE)){
|
||||
DBG("%d: iic_xfer, bus is not free\n", dev->idx);
|
||||
|
||||
|
||||
/* Usually it means something serious has happend.
|
||||
* We *cannot* have unfinished previous transfer
|
||||
* so it doesn't make any sense to try to stop it.
|
||||
* Probably we were not able to recover from the
|
||||
* Probably we were not able to recover from the
|
||||
* previous error.
|
||||
* The only *reasonable* thing I can think of here
|
||||
* is soft reset. --ebs
|
||||
*/
|
||||
iic_dev_reset(dev);
|
||||
|
||||
|
||||
if ((in_8(&iic->extsts) & EXTSTS_BCS_MASK) != EXTSTS_BCS_FREE){
|
||||
DBG("%d: iic_xfer, bus is still not free\n", dev->idx);
|
||||
return -EREMOTEIO;
|
||||
}
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* Flush master data buffer (just in case) */
|
||||
out_8(&iic->mdcntl, in_8(&iic->mdcntl) | MDCNTL_FMDB);
|
||||
}
|
||||
|
||||
|
||||
/* Load slave address */
|
||||
iic_address(dev, &msgs[0]);
|
||||
|
||||
|
||||
/* Do real transfer */
|
||||
for (i = 0; i < num && !ret; ++i)
|
||||
ret = iic_xfer_bytes(dev, &msgs[i], i < num - 1);
|
||||
|
|
@ -648,7 +648,7 @@ static inline u8 iic_clckdiv(unsigned int opb)
|
|||
|
||||
/* Convert to MHz */
|
||||
opb /= 1000000;
|
||||
|
||||
|
||||
if (opb < 20 || opb > 150){
|
||||
printk(KERN_CRIT "ibm-iic: invalid OPB clock frequency %u MHz\n",
|
||||
opb);
|
||||
|
|
@ -666,7 +666,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
|
|||
struct i2c_adapter* adap;
|
||||
struct ocp_func_iic_data* iic_data = ocp->def->additions;
|
||||
int ret;
|
||||
|
||||
|
||||
if (!iic_data)
|
||||
printk(KERN_WARNING"ibm-iic%d: missing additional data!\n",
|
||||
ocp->def->index);
|
||||
|
|
@ -679,7 +679,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
|
|||
|
||||
dev->idx = ocp->def->index;
|
||||
ocp_set_drvdata(ocp, dev);
|
||||
|
||||
|
||||
if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
|
||||
"ibm_iic")) {
|
||||
ret = -EBUSY;
|
||||
|
|
@ -692,7 +692,7 @@ static int __devinit iic_probe(struct ocp_device *ocp){
|
|||
ret = -ENXIO;
|
||||
goto fail2;
|
||||
}
|
||||
|
||||
|
||||
init_waitqueue_head(&dev->wq);
|
||||
|
||||
dev->irq = iic_force_poll ? -1 : ocp->def->irq;
|
||||
|
|
@ -702,29 +702,29 @@ static int __devinit iic_probe(struct ocp_device *ocp){
|
|||
*/
|
||||
iic_interrupt_mode(dev, 0);
|
||||
if (request_irq(dev->irq, iic_handler, 0, "IBM IIC", dev)){
|
||||
printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
|
||||
printk(KERN_ERR "ibm-iic%d: request_irq %d failed\n",
|
||||
dev->idx, dev->irq);
|
||||
/* Fallback to the polling mode */
|
||||
/* Fallback to the polling mode */
|
||||
dev->irq = -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (dev->irq < 0)
|
||||
printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
|
||||
printk(KERN_WARNING "ibm-iic%d: using polling mode\n",
|
||||
dev->idx);
|
||||
|
||||
|
||||
/* Board specific settings */
|
||||
dev->fast_mode = iic_force_fast ? 1 : (iic_data ? iic_data->fast_mode : 0);
|
||||
|
||||
/* clckdiv is the same for *all* IIC interfaces,
|
||||
|
||||
/* clckdiv is the same for *all* IIC interfaces,
|
||||
* but I'd rather make a copy than introduce another global. --ebs
|
||||
*/
|
||||
dev->clckdiv = iic_clckdiv(ocp_sys_info.opb_bus_freq);
|
||||
DBG("%d: clckdiv = %d\n", dev->idx, dev->clckdiv);
|
||||
|
||||
|
||||
/* Initialize IIC interface */
|
||||
iic_dev_init(dev);
|
||||
|
||||
|
||||
/* Register it with i2c layer */
|
||||
adap = &dev->adap;
|
||||
adap->dev.parent = &ocp->dev;
|
||||
|
|
@ -750,24 +750,24 @@ static int __devinit iic_probe(struct ocp_device *ocp){
|
|||
dev->idx);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
|
||||
printk(KERN_INFO "ibm-iic%d: using %s mode\n", dev->idx,
|
||||
dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)");
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
fail:
|
||||
if (dev->irq >= 0){
|
||||
iic_interrupt_mode(dev, 0);
|
||||
free_irq(dev->irq, dev);
|
||||
}
|
||||
}
|
||||
|
||||
iounmap(dev->vaddr);
|
||||
fail2:
|
||||
fail2:
|
||||
release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
|
||||
fail1:
|
||||
ocp_set_drvdata(ocp, NULL);
|
||||
kfree(dev);
|
||||
kfree(dev);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -783,13 +783,13 @@ static void __devexit iic_remove(struct ocp_device *ocp)
|
|||
dev->idx);
|
||||
/* That's *very* bad, just shutdown IRQ ... */
|
||||
if (dev->irq >= 0){
|
||||
iic_interrupt_mode(dev, 0);
|
||||
iic_interrupt_mode(dev, 0);
|
||||
free_irq(dev->irq, dev);
|
||||
dev->irq = -1;
|
||||
}
|
||||
} else {
|
||||
if (dev->irq >= 0){
|
||||
iic_interrupt_mode(dev, 0);
|
||||
iic_interrupt_mode(dev, 0);
|
||||
free_irq(dev->irq, dev);
|
||||
}
|
||||
iounmap(dev->vaddr);
|
||||
|
|
@ -798,7 +798,7 @@ static void __devexit iic_remove(struct ocp_device *ocp)
|
|||
}
|
||||
}
|
||||
|
||||
static struct ocp_device_id ibm_iic_ids[] __devinitdata =
|
||||
static struct ocp_device_id ibm_iic_ids[] __devinitdata =
|
||||
{
|
||||
{ .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_IIC },
|
||||
{ .vendor = OCP_VENDOR_INVALID }
|
||||
|
|
|
|||
|
|
@ -2,11 +2,11 @@
|
|||
* drivers/i2c/busses/i2c-ibm_iic.h
|
||||
*
|
||||
* Support for the IIC peripheral on IBM PPC 4xx
|
||||
*
|
||||
*
|
||||
* Copyright (c) 2003 Zultys Technologies.
|
||||
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
|
||||
*
|
||||
* Based on original work by
|
||||
* Based on original work by
|
||||
* Ian DaSilva <idasilva@mvista.com>
|
||||
* Armin Kuster <akuster@mvista.com>
|
||||
* Matt Porter <mporter@mvista.com>
|
||||
|
|
@ -22,7 +22,7 @@
|
|||
#ifndef __I2C_IBM_IIC_H_
|
||||
#define __I2C_IBM_IIC_H_
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/i2c.h>
|
||||
|
||||
struct iic_regs {
|
||||
u16 mdbuf;
|
||||
|
|
@ -58,7 +58,7 @@ struct ibm_iic_private {
|
|||
#define CNTL_TCT_MASK 0x30
|
||||
#define CNTL_TCT_SHIFT 4
|
||||
#define CNTL_RPST 0x08
|
||||
#define CNTL_CHT 0x04
|
||||
#define CNTL_CHT 0x04
|
||||
#define CNTL_RW 0x02
|
||||
#define CNTL_PT 0x01
|
||||
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче