提交 3d0911bf 编写于 作者: B Ben Dooks

i2c-s3c2410: Fixup style problems from checkpatch.pl

Fixup the 36 warnings and errors generated from running
checkpatch.pl on the driver. The warnings are too numerous
to be listed here.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
上级 1bda7128
...@@ -109,7 +109,8 @@ static inline int s3c24xx_i2c_is2440(struct s3c24xx_i2c *i2c) ...@@ -109,7 +109,8 @@ static inline int s3c24xx_i2c_is2440(struct s3c24xx_i2c *i2c)
* the default if there is none * the default if there is none
*/ */
static inline struct s3c2410_platform_i2c *s3c24xx_i2c_get_platformdata(struct device *dev) static inline struct s3c2410_platform_i2c *
s3c24xx_i2c_get_platformdata(struct device *dev)
{ {
if (dev->platform_data != NULL) if (dev->platform_data != NULL)
return (struct s3c2410_platform_i2c *)dev->platform_data; return (struct s3c2410_platform_i2c *)dev->platform_data;
...@@ -129,7 +130,7 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret) ...@@ -129,7 +130,7 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret)
i2c->msg_ptr = 0; i2c->msg_ptr = 0;
i2c->msg = NULL; i2c->msg = NULL;
i2c->msg_idx ++; i2c->msg_idx++;
i2c->msg_num = 0; i2c->msg_num = 0;
if (ret) if (ret)
i2c->msg_idx = ret; i2c->msg_idx = ret;
...@@ -140,19 +141,17 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret) ...@@ -140,19 +141,17 @@ static inline void s3c24xx_i2c_master_complete(struct s3c24xx_i2c *i2c, int ret)
static inline void s3c24xx_i2c_disable_ack(struct s3c24xx_i2c *i2c) static inline void s3c24xx_i2c_disable_ack(struct s3c24xx_i2c *i2c)
{ {
unsigned long tmp; unsigned long tmp;
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
writel(tmp & ~S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON); writel(tmp & ~S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON);
} }
static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c) static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c)
{ {
unsigned long tmp; unsigned long tmp;
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
writel(tmp | S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON); writel(tmp | S3C2410_IICCON_ACKEN, i2c->regs + S3C2410_IICCON);
} }
/* irq enable/disable functions */ /* irq enable/disable functions */
...@@ -160,7 +159,7 @@ static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c) ...@@ -160,7 +159,7 @@ static inline void s3c24xx_i2c_enable_ack(struct s3c24xx_i2c *i2c)
static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c) static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c)
{ {
unsigned long tmp; unsigned long tmp;
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
writel(tmp & ~S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON); writel(tmp & ~S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON);
} }
...@@ -168,7 +167,7 @@ static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c) ...@@ -168,7 +167,7 @@ static inline void s3c24xx_i2c_disable_irq(struct s3c24xx_i2c *i2c)
static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c) static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c)
{ {
unsigned long tmp; unsigned long tmp;
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
writel(tmp | S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON); writel(tmp | S3C2410_IICCON_IRQEN, i2c->regs + S3C2410_IICCON);
} }
...@@ -176,10 +175,10 @@ static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c) ...@@ -176,10 +175,10 @@ static inline void s3c24xx_i2c_enable_irq(struct s3c24xx_i2c *i2c)
/* s3c24xx_i2c_message_start /* s3c24xx_i2c_message_start
* *
* put the start of a message onto the bus * put the start of a message onto the bus
*/ */
static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c, static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
struct i2c_msg *msg) struct i2c_msg *msg)
{ {
unsigned int addr = (msg->addr & 0x7f) << 1; unsigned int addr = (msg->addr & 0x7f) << 1;
...@@ -198,15 +197,15 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c, ...@@ -198,15 +197,15 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
if (msg->flags & I2C_M_REV_DIR_ADDR) if (msg->flags & I2C_M_REV_DIR_ADDR)
addr ^= 1; addr ^= 1;
// todo - check for wether ack wanted or not /* todo - check for wether ack wanted or not */
s3c24xx_i2c_enable_ack(i2c); s3c24xx_i2c_enable_ack(i2c);
iiccon = readl(i2c->regs + S3C2410_IICCON); iiccon = readl(i2c->regs + S3C2410_IICCON);
writel(stat, i2c->regs + S3C2410_IICSTAT); writel(stat, i2c->regs + S3C2410_IICSTAT);
dev_dbg(i2c->dev, "START: %08lx to IICSTAT, %02x to DS\n", stat, addr); dev_dbg(i2c->dev, "START: %08lx to IICSTAT, %02x to DS\n", stat, addr);
writeb(addr, i2c->regs + S3C2410_IICDS); writeb(addr, i2c->regs + S3C2410_IICDS);
/* delay here to ensure the data byte has gotten onto the bus /* delay here to ensure the data byte has gotten onto the bus
* before the transaction is started */ * before the transaction is started */
...@@ -214,8 +213,8 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c, ...@@ -214,8 +213,8 @@ static void s3c24xx_i2c_message_start(struct s3c24xx_i2c *i2c,
dev_dbg(i2c->dev, "iiccon, %08lx\n", iiccon); dev_dbg(i2c->dev, "iiccon, %08lx\n", iiccon);
writel(iiccon, i2c->regs + S3C2410_IICCON); writel(iiccon, i2c->regs + S3C2410_IICCON);
stat |= S3C2410_IICSTAT_START; stat |= S3C2410_IICSTAT_START;
writel(stat, i2c->regs + S3C2410_IICSTAT); writel(stat, i2c->regs + S3C2410_IICSTAT);
} }
...@@ -226,11 +225,11 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret) ...@@ -226,11 +225,11 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret)
dev_dbg(i2c->dev, "STOP\n"); dev_dbg(i2c->dev, "STOP\n");
/* stop the transfer */ /* stop the transfer */
iicstat &= ~ S3C2410_IICSTAT_START; iicstat &= ~S3C2410_IICSTAT_START;
writel(iicstat, i2c->regs + S3C2410_IICSTAT); writel(iicstat, i2c->regs + S3C2410_IICSTAT);
i2c->state = STATE_STOP; i2c->state = STATE_STOP;
s3c24xx_i2c_master_complete(i2c, ret); s3c24xx_i2c_master_complete(i2c, ret);
s3c24xx_i2c_disable_irq(i2c); s3c24xx_i2c_disable_irq(i2c);
} }
...@@ -240,7 +239,7 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret) ...@@ -240,7 +239,7 @@ static inline void s3c24xx_i2c_stop(struct s3c24xx_i2c *i2c, int ret)
/* is_lastmsg() /* is_lastmsg()
* *
* returns TRUE if the current message is the last in the set * returns TRUE if the current message is the last in the set
*/ */
static inline int is_lastmsg(struct s3c24xx_i2c *i2c) static inline int is_lastmsg(struct s3c24xx_i2c *i2c)
...@@ -288,14 +287,14 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -288,14 +287,14 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
case STATE_STOP: case STATE_STOP:
dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__); dev_err(i2c->dev, "%s: called in STATE_STOP\n", __func__);
s3c24xx_i2c_disable_irq(i2c); s3c24xx_i2c_disable_irq(i2c);
goto out_ack; goto out_ack;
case STATE_START: case STATE_START:
/* last thing we did was send a start condition on the /* last thing we did was send a start condition on the
* bus, or started a new i2c message * bus, or started a new i2c message
*/ */
if (iicstat & S3C2410_IICSTAT_LASTBIT && if (iicstat & S3C2410_IICSTAT_LASTBIT &&
!(i2c->msg->flags & I2C_M_IGNORE_NAK)) { !(i2c->msg->flags & I2C_M_IGNORE_NAK)) {
/* ack was not received... */ /* ack was not received... */
...@@ -321,7 +320,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -321,7 +320,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
if (i2c->state == STATE_READ) if (i2c->state == STATE_READ)
goto prepare_read; goto prepare_read;
/* fall through to the write state, as we will need to /* fall through to the write state, as we will need to
* send a byte as well */ * send a byte as well */
case STATE_WRITE: case STATE_WRITE:
...@@ -338,7 +337,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -338,7 +337,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
} }
} }
retry_write: retry_write:
if (!is_msgend(i2c)) { if (!is_msgend(i2c)) {
byte = i2c->msg->buf[i2c->msg_ptr++]; byte = i2c->msg->buf[i2c->msg_ptr++];
...@@ -358,9 +357,9 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -358,9 +357,9 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
dev_dbg(i2c->dev, "WRITE: Next Message\n"); dev_dbg(i2c->dev, "WRITE: Next Message\n");
i2c->msg_ptr = 0; i2c->msg_ptr = 0;
i2c->msg_idx ++; i2c->msg_idx++;
i2c->msg++; i2c->msg++;
/* check to see if we need to do another message */ /* check to see if we need to do another message */
if (i2c->msg->flags & I2C_M_NOSTART) { if (i2c->msg->flags & I2C_M_NOSTART) {
...@@ -374,7 +373,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -374,7 +373,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
goto retry_write; goto retry_write;
} else { } else {
/* send the new start */ /* send the new start */
s3c24xx_i2c_message_start(i2c, i2c->msg); s3c24xx_i2c_message_start(i2c, i2c->msg);
i2c->state = STATE_START; i2c->state = STATE_START;
...@@ -388,7 +386,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -388,7 +386,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
break; break;
case STATE_READ: case STATE_READ:
/* we have a byte of data in the data register, do /* we have a byte of data in the data register, do
* something with it, and then work out wether we are * something with it, and then work out wether we are
* going to do any more read/write * going to do any more read/write
*/ */
...@@ -396,13 +394,13 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -396,13 +394,13 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
byte = readb(i2c->regs + S3C2410_IICDS); byte = readb(i2c->regs + S3C2410_IICDS);
i2c->msg->buf[i2c->msg_ptr++] = byte; i2c->msg->buf[i2c->msg_ptr++] = byte;
prepare_read: prepare_read:
if (is_msglast(i2c)) { if (is_msglast(i2c)) {
/* last byte of buffer */ /* last byte of buffer */
if (is_lastmsg(i2c)) if (is_lastmsg(i2c))
s3c24xx_i2c_disable_ack(i2c); s3c24xx_i2c_disable_ack(i2c);
} else if (is_msgend(i2c)) { } else if (is_msgend(i2c)) {
/* ok, we've read the entire buffer, see if there /* ok, we've read the entire buffer, see if there
* is anything else we need to do */ * is anything else we need to do */
...@@ -428,7 +426,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) ...@@ -428,7 +426,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
/* acknowlegde the IRQ and get back on with the work */ /* acknowlegde the IRQ and get back on with the work */
out_ack: out_ack:
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
tmp &= ~S3C2410_IICCON_IRQPEND; tmp &= ~S3C2410_IICCON_IRQPEND;
writel(tmp, i2c->regs + S3C2410_IICCON); writel(tmp, i2c->regs + S3C2410_IICCON);
out: out:
...@@ -449,19 +447,19 @@ static irqreturn_t s3c24xx_i2c_irq(int irqno, void *dev_id) ...@@ -449,19 +447,19 @@ static irqreturn_t s3c24xx_i2c_irq(int irqno, void *dev_id)
status = readl(i2c->regs + S3C2410_IICSTAT); status = readl(i2c->regs + S3C2410_IICSTAT);
if (status & S3C2410_IICSTAT_ARBITR) { if (status & S3C2410_IICSTAT_ARBITR) {
// deal with arbitration loss /* deal with arbitration loss */
dev_err(i2c->dev, "deal with arbitration loss\n"); dev_err(i2c->dev, "deal with arbitration loss\n");
} }
if (i2c->state == STATE_IDLE) { if (i2c->state == STATE_IDLE) {
dev_dbg(i2c->dev, "IRQ: error i2c->state == IDLE\n"); dev_dbg(i2c->dev, "IRQ: error i2c->state == IDLE\n");
tmp = readl(i2c->regs + S3C2410_IICCON); tmp = readl(i2c->regs + S3C2410_IICCON);
tmp &= ~S3C2410_IICCON_IRQPEND; tmp &= ~S3C2410_IICCON_IRQPEND;
writel(tmp, i2c->regs + S3C2410_IICCON); writel(tmp, i2c->regs + S3C2410_IICCON);
goto out; goto out;
} }
/* pretty much this leaves us with the fact that we've /* pretty much this leaves us with the fact that we've
* transmitted or received whatever byte we last sent */ * transmitted or received whatever byte we last sent */
...@@ -484,7 +482,7 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c) ...@@ -484,7 +482,7 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c)
while (timeout-- > 0) { while (timeout-- > 0) {
iicstat = readl(i2c->regs + S3C2410_IICSTAT); iicstat = readl(i2c->regs + S3C2410_IICSTAT);
if (!(iicstat & S3C2410_IICSTAT_BUSBUSY)) if (!(iicstat & S3C2410_IICSTAT_BUSBUSY))
return 0; return 0;
...@@ -502,7 +500,8 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c) ...@@ -502,7 +500,8 @@ static int s3c24xx_i2c_set_master(struct s3c24xx_i2c *i2c)
* this starts an i2c transfer * this starts an i2c transfer
*/ */
static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int num) static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c,
struct i2c_msg *msgs, int num)
{ {
unsigned long timeout; unsigned long timeout;
int ret; int ret;
...@@ -528,12 +527,12 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int ...@@ -528,12 +527,12 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int
s3c24xx_i2c_enable_irq(i2c); s3c24xx_i2c_enable_irq(i2c);
s3c24xx_i2c_message_start(i2c, msgs); s3c24xx_i2c_message_start(i2c, msgs);
spin_unlock_irq(&i2c->lock); spin_unlock_irq(&i2c->lock);
timeout = wait_event_timeout(i2c->wait, i2c->msg_num == 0, HZ * 5); timeout = wait_event_timeout(i2c->wait, i2c->msg_num == 0, HZ * 5);
ret = i2c->msg_idx; ret = i2c->msg_idx;
/* having these next two as dev_err() makes life very /* having these next two as dev_err() makes life very
* noisy when doing an i2cdetect */ * noisy when doing an i2cdetect */
if (timeout == 0) if (timeout == 0)
...@@ -642,7 +641,7 @@ static inline int freq_acceptable(unsigned int freq, unsigned int wanted) ...@@ -642,7 +641,7 @@ static inline int freq_acceptable(unsigned int freq, unsigned int wanted)
{ {
int diff = freq - wanted; int diff = freq - wanted;
return (diff >= -2 && diff <= 2); return diff >= -2 && diff <= 2;
} }
/* s3c24xx_i2c_clockrate /* s3c24xx_i2c_clockrate
...@@ -665,7 +664,7 @@ static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got) ...@@ -665,7 +664,7 @@ static int s3c24xx_i2c_clockrate(struct s3c24xx_i2c *i2c, unsigned int *got)
pdata = s3c24xx_i2c_get_platformdata(i2c->adap.dev.parent); pdata = s3c24xx_i2c_get_platformdata(i2c->adap.dev.parent);
clkin /= 1000; /* clkin now in KHz */ clkin /= 1000; /* clkin now in KHz */
dev_dbg(i2c->dev, "pdata %p, freq %lu %lu..%lu\n", dev_dbg(i2c->dev, "pdata %p, freq %lu %lu..%lu\n",
pdata, pdata->bus_freq, pdata->min_freq, pdata->max_freq); pdata, pdata->bus_freq, pdata->min_freq, pdata->max_freq);
...@@ -773,7 +772,7 @@ static inline void s3c24xx_i2c_deregister_cpufreq(struct s3c24xx_i2c *i2c) ...@@ -773,7 +772,7 @@ static inline void s3c24xx_i2c_deregister_cpufreq(struct s3c24xx_i2c *i2c)
/* s3c24xx_i2c_init /* s3c24xx_i2c_init
* *
* initialise the controller, set the IO lines and frequency * initialise the controller, set the IO lines and frequency
*/ */
static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c) static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
...@@ -792,7 +791,7 @@ static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c) ...@@ -792,7 +791,7 @@ static int s3c24xx_i2c_init(struct s3c24xx_i2c *i2c)
s3c2410_gpio_cfgpin(S3C2410_GPE14, S3C2410_GPE14_IICSCL); s3c2410_gpio_cfgpin(S3C2410_GPE14, S3C2410_GPE14_IICSCL);
/* write slave address */ /* write slave address */
writeb(pdata->slave_addr, i2c->regs + S3C2410_IICADD); writeb(pdata->slave_addr, i2c->regs + S3C2410_IICADD);
dev_info(i2c->dev, "slave address 0x%02x\n", pdata->slave_addr); dev_info(i2c->dev, "slave address 0x%02x\n", pdata->slave_addr);
...@@ -877,7 +876,8 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) ...@@ -877,7 +876,8 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
goto err_ioarea; goto err_ioarea;
} }
dev_dbg(&pdev->dev, "registers %p (%p, %p)\n", i2c->regs, i2c->ioarea, res); dev_dbg(&pdev->dev, "registers %p (%p, %p)\n",
i2c->regs, i2c->ioarea, res);
/* setup info block for the i2c core */ /* setup info block for the i2c core */
...@@ -891,7 +891,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) ...@@ -891,7 +891,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
goto err_iomap; goto err_iomap;
/* find the IRQ for this unit (note, this relies on the init call to /* find the IRQ for this unit (note, this relies on the init call to
* ensure no current IRQs pending * ensure no current IRQs pending
*/ */
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
...@@ -910,7 +910,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) ...@@ -910,7 +910,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
} }
i2c->irq = res; i2c->irq = res;
dev_dbg(&pdev->dev, "irq resource %p (%lu)\n", res, dev_dbg(&pdev->dev, "irq resource %p (%lu)\n", res,
(unsigned long)res->start); (unsigned long)res->start);
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册