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Date: Thu, 02 Sep 2010 21:38:43 -0700
From: Joe Perches <joe@...ches.com>
To: Masayuki Ohtak <masa-korg@....okisemi.com>
Cc: "Jean Delvare (PC drivers, core)" <khali@...ux-fr.org>,
"Ben Dooks (embedded platforms)" <ben-linux@...ff.org>,
Crane Cai <crane.cai@....com>,
Samuel Ortiz <sameo@...ux.intel.com>,
Linus Walleij <linus.walleij@...ricsson.com>,
Ralf Baechle <ralf@...ux-mips.org>,
srinidhi kasagar <srinidhi.kasagar@...ricsson.com>,
linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
yong.y.wang@...el.com, qi.wang@...el.com,
andrew.chih.howe.khor@...el.com, arjan@...ux.intel.com,
Tomoya MORINAGA <morinaga526@....okisemi.com>,
Arnd Bergmann <arnd@...db.de>
Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_I2C driver to 2.6.35
I suggest these logging message changes and bug fixes:
Add pch_pci_dbg.
Rename 1st argument to pch_pci_dbg to pdev.
Add trailing "\n" to formats missing them.
Add "%s:" fmt, __func__, args to pch_<level> and pch_pci_<level>
logging macros.
Remove __func__ and inconsistent use of "%s : " and "%s:" prefix
from logging macro uses.
Fix misspelling of Enterred to Entered.
Use "FAILED" consistently.
There's an odd use that is still questionable:
pch_pci_dbg(pdev, "request_irq returns %d pch_probe returns\n", ret);
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/i2c/busses/i2c-pch.c | 103 ++++++++++++++++++++----------------------
1 files changed, 49 insertions(+), 54 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pch.c b/drivers/i2c/busses/i2c-pch.c
index 0933e63..f5bb140 100644
--- a/drivers/i2c/busses/i2c-pch.c
+++ b/drivers/i2c/busses/i2c-pch.c
@@ -121,13 +121,15 @@
#define I2CESRTO_EVENT 0x0100
#define PCI_DEVICE_ID_PCH_I2C 0x8817
-#define pch_dbg(adap, fmt, arg...) \
- dev_dbg(adap->pch_adapter.dev.parent, fmt, ##arg)
+#define pch_dbg(adap, fmt, arg...) \
+ dev_dbg(adap->pch_adapter.dev.parent, "%s: " fmt, __func__, ##arg)
+#define pch_err(adap, fmt, arg...) \
+ dev_err(adap->pch_adapter.dev.parent, "%s: " fmt, __func__, ##arg)
-#define pch_err(adap, fmt, arg...) \
- dev_err(adap->pch_adapter.dev.parent, fmt, ##arg)
-
-#define pch_pci_err(adap, fmt, arg...) dev_err(&adap->dev, fmt, ##arg)
+#define pch_pci_dbg(pdev, fmt, arg...) \
+ dev_dbg(&pdev->dev, "%s: " fmt, __func__, ##arg)
+#define pch_pci_err(pdev, fmt, arg...) \
+ dev_err(&pdev->dev, "%s: " fmt, __func__, ##arg)
/**
* struct i2c_algo_pch_data - for I2C driver functionalities
@@ -243,9 +245,8 @@ static void pch_init(struct i2c_algo_pch_data *adap)
reg_value |= NORMAL_INTR_ENBL; /* Enable interrupts in normal mode */
iowrite32(reg_value, p + PCH_I2CCTL);
- pch_dbg(adap,
- "%s: I2CCTL=%x pch_i2cbc=%x pch_i2ctmr=%x Enable interrupts\n",
- __func__, ioread32(p + PCH_I2CCTL), pch_i2cbc, pch_i2ctmr);
+ pch_dbg(adap, "I2CCTL=%x pch_i2cbc=%x pch_i2ctmr=%x Enable interrupts\n",
+ ioread32(p + PCH_I2CCTL), pch_i2cbc, pch_i2ctmr);
init_waitqueue_head(&pch_event);
}
@@ -273,10 +274,10 @@ static s32 pch_wait_for_bus_idle(struct i2c_algo_pch_data *adap,
msleep(1);
} while (ktime_lt(ktime_get(), ns_val));
- pch_dbg(adap, "%s : I2CSR = %x\n", __func__, ioread32(p + PCH_I2CSR));
+ pch_dbg(adap, "I2CSR = %x\n", ioread32(p + PCH_I2CSR));
if (timeout == 0) {
- pch_err(adap, "%s :return%d\n", __func__, -ETIME);
+ pch_err(adap, "return: %d\n", -ETIME);
return -ETIME;
}
@@ -292,8 +293,7 @@ static s32 pch_wait_for_bus_idle(struct i2c_algo_pch_data *adap,
static void pch_start(struct i2c_algo_pch_data *adap)
{
void __iomem *p = adap->pch_base_address;
- pch_dbg(adap, "In %s : I2CCTL = %x\n",
- __func__, ioread32(p + PCH_I2CCTL));
+ pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));
pch_setbit((adap->pch_base_address), PCH_I2CCTL, PCH_START);
}
@@ -307,20 +307,17 @@ static s32 pch_wait_for_xfer_complete(struct i2c_algo_pch_data *adap)
ret = wait_event_interruptible_timeout(pch_event,
(adap->pch_event_flag != 0), msecs_to_jiffies(50));
if (ret < 0) {
- pch_err(adap, "%s :timeout: %x\n",
- __func__, adap->pch_event_flag);
+ pch_err(adap, "timeout: %x\n", adap->pch_event_flag);
return ret;
}
if (ret == 0) {
- pch_err(adap, "%s :timeout: %x\n",
- __func__, adap->pch_event_flag);
+ pch_err(adap, "timeout: %x\n", adap->pch_event_flag);
return -ETIMEDOUT;
}
if (adap->pch_event_flag & I2C_ERROR_MASK) {
- pch_err(adap, "%s :error bits set: %x\n",
- __func__, adap->pch_event_flag);
+ pch_err(adap, "error bits set: %x\n", adap->pch_event_flag);
return -EIO;
}
@@ -341,7 +338,7 @@ static s32 pch_getack(struct i2c_algo_pch_data *adap)
reg_val = ioread32(p + PCH_I2CSR) & PCH_GETACK;
if (reg_val != 0) {
- pch_err(adap, "%s : return%d\n", __func__, -EPROTO);
+ pch_err(adap, "return: %d\n", -EPROTO);
return -EPROTO;
}
@@ -355,7 +352,7 @@ static s32 pch_getack(struct i2c_algo_pch_data *adap)
static void pch_stop(struct i2c_algo_pch_data *adap)
{
void __iomem *p = adap->pch_base_address;
- pch_dbg(adap, "%s : I2CCTL = %x\n", __func__, ioread32(p + PCH_I2CCTL));
+ pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));
/* clear the start bit */
pch_clrbit((adap->pch_base_address), PCH_I2CCTL, PCH_START);
}
@@ -367,8 +364,7 @@ static void pch_stop(struct i2c_algo_pch_data *adap)
static void pch_repstart(struct i2c_algo_pch_data *adap)
{
void __iomem *p = adap->pch_base_address;
- pch_dbg(adap, "In %s : I2CCTL = %x\n",
- __func__, ioread32(p + PCH_I2CCTL));
+ pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));
pch_setbit((adap->pch_base_address), PCH_I2CCTL, PCH_REPSTART);
}
@@ -398,7 +394,7 @@ static s32 pch_writebytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
/* enable master tx */
pch_setbit((adap->pch_base_address), PCH_I2CCTL, I2C_TX_MODE);
- pch_dbg(adap, "%s : I2CCTL = %x msgs->len = %d\n", __func__,
+ pch_dbg(adap, "I2CCTL = %x msgs->len = %d\n",
ioread32(p + PCH_I2CCTL), length);
if (first) {
@@ -431,13 +427,13 @@ static s32 pch_writebytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
for (wrcount = 0; wrcount < length; ++wrcount) {
/* write buffer value to I2C data register */
iowrite32(buf[wrcount], p + PCH_I2CDR);
- pch_dbg(adap, "%s : writing %x to Data register\n",
- __func__, buf[wrcount]);
+ pch_dbg(adap, "writing %x to Data register\n",
+ buf[wrcount]);
if (pch_wait_for_xfer_complete(adap) != 0)
return -ETIME;
- pch_dbg(adap, "%s return %d", __func__, 0);
+ pch_dbg(adap, "return %d", 0);
if (pch_getack(adap))
return -ETIME;
@@ -453,7 +449,7 @@ static s32 pch_writebytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
return -EIO;
}
- pch_dbg(adap, "%s return=%d\n", __func__, wrcount);
+ pch_dbg(adap, "return=%d\n", wrcount);
return wrcount;
}
@@ -465,7 +461,7 @@ static s32 pch_writebytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
static void pch_sendack(struct i2c_algo_pch_data *adap)
{
void __iomem *p = adap->pch_base_address;
- pch_dbg(adap, "%s : I2CCTL = %x\n", __func__, ioread32(p + PCH_I2CCTL));
+ pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));
pch_clrbit((adap->pch_base_address), PCH_I2CCTL, PCH_ACK);
}
@@ -476,7 +472,7 @@ static void pch_sendack(struct i2c_algo_pch_data *adap)
static void pch_sendnack(struct i2c_algo_pch_data *adap)
{
void __iomem *p = adap->pch_base_address;
- pch_dbg(adap, "%s : I2CCTL = %x\n", __func__, ioread32(p + PCH_I2CCTL));
+ pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));
pch_setbit((adap->pch_base_address), PCH_I2CCTL, PCH_ACK);
}
@@ -526,7 +522,7 @@ s32 pch_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
if ((pch_wait_for_xfer_complete(adap) == 0)
&& (pch_getack(adap) == 0)) {
- pch_dbg(adap, "%s return %d", __func__, 0);
+ pch_dbg(adap, "return %d", 0);
if (length == 0) {
pch_stop(adap);
@@ -599,8 +595,7 @@ static void pch_cb_ch0(struct i2c_algo_pch_data *adap)
/* clear the applicable bits */
pch_clrbit((adap->pch_base_address), PCH_I2CSR, sts);
- pch_dbg(adap, "%s : PCH_I2CSR = %x\n",
- __func__, ioread32(p + PCH_I2CSR));
+ pch_dbg(adap, "PCH_I2CSR = %x\n", ioread32(p + PCH_I2CSR));
wake_up_interruptible(&pch_event);
}
@@ -619,7 +614,7 @@ static irqreturn_t pch_handler_ch0(int irq, void *pData)
u32 mode = ioread32(p + PCH_I2CMOD) & (BUFFER_MODE | EEPROM_SR_MODE);
if (mode != NORMAL_MODE) {
- pch_err(adap_data, "%s I2C mode is not supported\n", __func__);
+ pch_err(adap_data, "I2C mode is not supported\n");
return IRQ_NONE;
}
@@ -639,7 +634,7 @@ static irqreturn_t pch_handler_ch0(int irq, void *pData)
else
goto err_out;
} else {
- pch_err(adap_data, "%s I2C mode is not supported\n", __func__);
+ pch_err(adap_data, "I2C mode is not supported\n");
goto err_out;
}
return IRQ_HANDLED;
@@ -675,8 +670,8 @@ static s32 pch_xfer(struct i2c_adapter *i2c_adap,
return -EBUSY;
}
- pch_dbg(adap, "%s adap->p_adapter_info->pch_suspended is %d\n",
- __func__, adap->p_adapter_info->pch_suspended);
+ pch_dbg(adap, "adap->p_adapter_info->pch_suspended is %d\n",
+ adap->p_adapter_info->pch_suspended);
/* transfer not completed */
adap->pch_xfer_in_progress = true;
@@ -685,7 +680,7 @@ static s32 pch_xfer(struct i2c_adapter *i2c_adap,
pmsg->flags |= adap->pch_buff_mode_en;
status = pmsg->flags;
pch_dbg(adap,
- "After invoking I2C_MODE_SEL :flag= 0x%x\n", status);
+ "After invoking I2C_MODE_SEL: flag=0x%x\n", status);
/* calculate sub address length and message length */
/* these are applicable only for buffer mode */
subaddrlen = pmsg->buf[0];
@@ -693,11 +688,11 @@ static s32 pch_xfer(struct i2c_adapter *i2c_adap,
* the sub address fields */
msglen = (pmsg->len) - (subaddrlen + 1);
if (status & (I2C_M_RD)) {
- pch_dbg(adap, "%s invoking pch_readbytes\n", __func__);
+ pch_dbg(adap, "invoking pch_readbytes\n");
ret = pch_readbytes(i2c_adap, pmsg, (i + 1 == num),
(i == 0));
} else {
- pch_dbg(adap, "%s invoking pch_writebytes\n", __func__);
+ pch_dbg(adap, "invoking pch_writebytes\n");
ret = pch_writebytes(i2c_adap, pmsg, (i + 1 == num),
(i == 0));
}
@@ -752,29 +747,29 @@ static int __devinit pch_probe(struct pci_dev *pdev,
struct adapter_info *adap_info =
kzalloc((sizeof(struct adapter_info)), GFP_KERNEL);
- dev_dbg(&pdev->dev, "Enterred in %s\n", __func__);
+ pch_pci_dbg(pdev, "Entered\n");
if (adap_info == NULL) {
- pch_pci_err(pdev, "Memory allocation failed FAILED");
+ pch_pci_err(pdev, "Memory allocation failed FAILED\n");
return -ENOMEM;
}
ret = pci_enable_device(pdev);
if (ret) {
- pch_pci_err(pdev, "%s : pci_enable_device FAILED", __func__);
+ pch_pci_err(pdev, "pci_enable_device FAILED\n");
goto err_pci_enable;
}
ret = pci_request_regions(pdev, KBUILD_MODNAME);
if (ret) {
- pch_pci_err(pdev, "pci_request_regions FAILED");
+ pch_pci_err(pdev, "pci_request_regions FAILED\n");
goto err_pci_req;
}
base_addr = pci_iomap(pdev, 1, 0);
if (base_addr == 0) {
- pch_pci_err(pdev, "pci_iomap FAILED");
+ pch_pci_err(pdev, "pci_iomap FAILED\n");
ret = -ENOMEM;
goto err_pci_iomap;
}
@@ -799,7 +794,7 @@ static int __devinit pch_probe(struct pci_dev *pdev,
ret = i2c_add_adapter(&(adap_info->pch_data[i].pch_adapter));
if (ret) {
- pch_pci_err(pdev, "i2c_add_adapter FAILED");
+ pch_pci_err(pdev, "i2c_add_adapter FAILED\n");
goto err_i2c_add_adapter;
}
@@ -807,12 +802,12 @@ static int __devinit pch_probe(struct pci_dev *pdev,
ret = request_irq(pdev->irq, pch_handler_list[i], IRQF_SHARED,
KBUILD_MODNAME, &adap_info->pch_data[i]);
if (ret) {
- pch_pci_err(pdev, "request_irq Failed\n");
+ pch_pci_err(pdev, "request_irq FAILED\n");
goto err_request_irq;
}
}
- dev_dbg(&pdev->dev, "request_irq returns %d pch_probe returns.\n", ret);
+ pch_pci_dbg(pdev, "request_irq returns %d pch_probe returns\n", ret);
pci_set_drvdata(pdev, adap_info);
return 0;
@@ -876,12 +871,12 @@ static int pch_suspend(struct pci_dev *pdev, pm_message_t state)
pch_disbl_int(&adap_info->pch_data[i]);
}
- dev_dbg(&pdev->dev,
- "I2CSR = %x I2CBUFSTA = %x I2CESRSTA = %x "
- "invoked function pch_disbl_int successfully\n",
- ioread32(p + 0x08),
- ioread32(p + 0x30),
- ioread32(p + 0x44));
+ pch_pci_dbg(pdev,
+ "I2CSR = %x I2CBUFSTA = %x I2CESRSTA = %x "
+ "invoked function pch_disbl_int successfully\n",
+ ioread32(p + 0x08),
+ ioread32(p + 0x30),
+ ioread32(p + 0x44));
ret = pci_save_state(pdev);
--
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