* [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address
@ 2012-03-26 5:55 Tomoya MORINAGA
2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Tomoya MORINAGA @ 2012-03-26 5:55 UTC (permalink / raw)
To: Jean Delvare, Ben Dooks, Wolfram Sang, Feng Tang,
Alexander Stein, linux-i2c, linux-kernel
Cc: qi.wang, yong.y.wang, joel.clark, kok.howg.ewe, Tomoya MORINAGA
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
---
drivers/i2c/busses/i2c-eg20t.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index f086131..d73975b 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -1063,6 +1063,6 @@ module_exit(pch_pci_exit);
MODULE_DESCRIPTION("Intel EG20T PCH/LAPIS Semico ML7213/ML7223/ML7831 IOH I2C");
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Tomoya MORINAGA. <tomoya-linux@dsn.lapis-semi.com>");
+MODULE_AUTHOR("Tomoya MORINAGA. <tomoya.rohm@gmail.com>");
module_param(pch_i2c_speed, int, (S_IRUSR | S_IWUSR));
module_param(pch_clk, int, (S_IRUSR | S_IWUSR));
--
1.7.7.6
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs 2012-03-26 5:55 [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Tomoya MORINAGA @ 2012-03-26 5:55 ` Tomoya MORINAGA 2012-03-26 6:34 ` [PATCH 2/3 v2] " Tomoya MORINAGA 2012-04-18 15:05 ` [PATCH 2/3] " Wolfram Sang 2012-03-26 5:55 ` [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec Tomoya MORINAGA 2012-04-18 14:58 ` [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Wolfram Sang 2 siblings, 2 replies; 9+ messages in thread From: Tomoya MORINAGA @ 2012-03-26 5:55 UTC (permalink / raw) To: Jean Delvare, Ben Dooks, Wolfram Sang, Feng Tang, Alexander Stein, linux-i2c, linux-kernel Cc: qi.wang, yong.y.wang, joel.clark, kok.howg.ewe, Tomoya MORINAGA Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> --- drivers/i2c/busses/i2c-eg20t.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index d73975b..714b070 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -445,7 +445,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } else { @@ -469,7 +471,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -490,7 +494,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT); } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } @@ -598,7 +604,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } pch_i2c_restart(adap); @@ -621,7 +629,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } else { @@ -648,7 +658,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -677,7 +689,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, return -EIO; } } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -698,7 +712,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, return -EIO; } } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } -- 1.7.7.6 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 2/3 v2] i2c-eg20t: Call init() when wait-event timeout occurs 2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA @ 2012-03-26 6:34 ` Tomoya MORINAGA 2012-04-18 15:05 ` [PATCH 2/3] " Wolfram Sang 1 sibling, 0 replies; 9+ messages in thread From: Tomoya MORINAGA @ 2012-03-26 6:34 UTC (permalink / raw) To: Jean Delvare, Ben Dooks, Wolfram Sang, Feng Tang, Alexander Stein, linux-i2c, linux-kernel Cc: qi.wang, yong.y.wang, joel.clark, kok.howg.ewe, Tomoya MORINAGA v1 had checkpatch warnings. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> --- v2 - Updated for checkpatch --- drivers/i2c/busses/i2c-eg20t.c | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index d73975b..0e3a89f 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -445,7 +445,10 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } else { @@ -469,7 +472,10 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -490,7 +496,10 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT); } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } @@ -598,7 +607,10 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } pch_i2c_restart(adap); @@ -621,7 +633,10 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } } else { @@ -648,7 +663,10 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, pch_i2c_init(adap); return -EAGAIN; } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -677,7 +695,10 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, return -EIO; } } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } @@ -698,7 +719,10 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, return -EIO; } } else { /* wait-event timeout */ + pch_err(adap, "%s(L.%d):wait-event timeout\n", + __func__, __LINE__); pch_i2c_stop(adap); + pch_i2c_init(adap); return -ETIME; } -- 1.7.7.6 ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs 2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA 2012-03-26 6:34 ` [PATCH 2/3 v2] " Tomoya MORINAGA @ 2012-04-18 15:05 ` Wolfram Sang 2012-04-19 6:19 ` Tomoya MORINAGA 1 sibling, 1 reply; 9+ messages in thread From: Wolfram Sang @ 2012-04-18 15:05 UTC (permalink / raw) To: Tomoya MORINAGA Cc: Jean Delvare, Ben Dooks, Feng Tang, Alexander Stein, linux-i2c, linux-kernel, qi.wang, yong.y.wang, joel.clark, kok.howg.ewe [-- Attachment #1: Type: text/plain, Size: 4784 bytes --] On Mon, Mar 26, 2012 at 02:55:24PM +0900, Tomoya MORINAGA wrote: > > Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Woha, that's copy&paste code all over. May I ask to refactor this? Something like: rtn = pch_..._wait_for_checked_xfer(); if (rtn) return rtn; // All the things you have to do when rtn == 0 in that new function (the name was only a suugestion), you can do all the checks which are now copy-pasted, e.g.: 458 rtn = pch_i2c_wait_for_xfer_complete(adap); 459 if (rtn == 0) { 460 if (pch_i2c_getack(adap)) { 461 pch_dbg(adap, "Receive NACK for slave address" 462 "setting\n"); 463 return -EIO; 464 } 465 } else if (rtn == -EIO) { /* Arbitration Lost */ 466 pch_err(adap, "Lost Arbitration\n"); 467 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMAL_BIT); 468 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT); 469 pch_i2c_init(adap); 470 return -EAGAIN; 471 } else { /* wait-event timeout */ 472 pch_i2c_stop(adap); // Your current fixes added here 473 return -ETIME; 474 } return 0; It is only pseudo-code, but I think it can be done and will help the driver. Thanks, Wolfram > --- > drivers/i2c/busses/i2c-eg20t.c | 16 ++++++++++++++++ > 1 files changed, 16 insertions(+), 0 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c > index d73975b..714b070 100644 > --- a/drivers/i2c/busses/i2c-eg20t.c > +++ b/drivers/i2c/busses/i2c-eg20t.c > @@ -445,7 +445,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, > pch_i2c_init(adap); > return -EAGAIN; > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > } else { > @@ -469,7 +471,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, > pch_i2c_init(adap); > return -EAGAIN; > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > > @@ -490,7 +494,9 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap, > pch_clrbit(adap->pch_base_address, PCH_I2CSR, > I2CMIF_BIT); > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > } > @@ -598,7 +604,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, > pch_i2c_init(adap); > return -EAGAIN; > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > pch_i2c_restart(adap); > @@ -621,7 +629,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, > pch_i2c_init(adap); > return -EAGAIN; > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > } else { > @@ -648,7 +658,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, > pch_i2c_init(adap); > return -EAGAIN; > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > > @@ -677,7 +689,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, > return -EIO; > } > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > > @@ -698,7 +712,9 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, > return -EIO; > } > } else { /* wait-event timeout */ > + pch_err(adap, "%s(L.%d):wait-event timeout\n", __func__, __LINE__); > pch_i2c_stop(adap); > + pch_i2c_init(adap); > return -ETIME; > } > > -- > 1.7.7.6 > -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs 2012-04-18 15:05 ` [PATCH 2/3] " Wolfram Sang @ 2012-04-19 6:19 ` Tomoya MORINAGA 2012-04-20 20:37 ` Wolfram Sang 0 siblings, 1 reply; 9+ messages in thread From: Tomoya MORINAGA @ 2012-04-19 6:19 UTC (permalink / raw) To: Wolfram Sang Cc: Jean Delvare, Ben Dooks, Feng Tang, Alexander Stein, linux-i2c, linux-kernel, qi.wang, yong.y.wang, joel.clark, kok.howg.ewe On Thu, Apr 19, 2012 at 12:05 AM, Wolfram Sang <w.sang@pengutronix.de> wrote: > On Mon, Mar 26, 2012 at 02:55:24PM +0900, Tomoya MORINAGA wrote: >> >> Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> > > Woha, that's copy&paste code all over. May I ask to refactor this? > Something like: > > rtn = pch_..._wait_for_checked_xfer(); > if (rtn) > return rtn; > // All the things you have to do when rtn == 0 > > in that new function (the name was only a suugestion), you can do all > the checks which are now copy-pasted, e.g.: > > 458 rtn = pch_i2c_wait_for_xfer_complete(adap); > 459 if (rtn == 0) { > 460 if (pch_i2c_getack(adap)) { > 461 pch_dbg(adap, "Receive NACK for slave address" > 462 "setting\n"); > 463 return -EIO; > 464 } > 465 } else if (rtn == -EIO) { /* Arbitration Lost */ > 466 pch_err(adap, "Lost Arbitration\n"); > 467 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMAL_BIT); > 468 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT); > 469 pch_i2c_init(adap); > 470 return -EAGAIN; > 471 } else { /* wait-event timeout */ > 472 pch_i2c_stop(adap); > // Your current fixes added here > 473 return -ETIME; > 474 } > return 0; > > It is only pseudo-code, but I think it can be done and will help the driver. > OK. I'm ready to submit new patch you are saying. So, firstly, could you accept this patch ? After your accept, new patch series can be applicable. thanks. -- ROHM Co., Ltd. tomoya ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs 2012-04-19 6:19 ` Tomoya MORINAGA @ 2012-04-20 20:37 ` Wolfram Sang 0 siblings, 0 replies; 9+ messages in thread From: Wolfram Sang @ 2012-04-20 20:37 UTC (permalink / raw) To: Tomoya MORINAGA Cc: Jean Delvare, Ben Dooks, Feng Tang, Alexander Stein, linux-i2c, linux-kernel, qi.wang, yong.y.wang, joel.clark, kok.howg.ewe [-- Attachment #1: Type: text/plain, Size: 2044 bytes --] On Thu, Apr 19, 2012 at 03:19:14PM +0900, Tomoya MORINAGA wrote: > On Thu, Apr 19, 2012 at 12:05 AM, Wolfram Sang <w.sang@pengutronix.de> wrote: > > On Mon, Mar 26, 2012 at 02:55:24PM +0900, Tomoya MORINAGA wrote: > >> > >> Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> > > > > Woha, that's copy&paste code all over. May I ask to refactor this? > > Something like: > > > > rtn = pch_..._wait_for_checked_xfer(); > > if (rtn) > > return rtn; > > // All the things you have to do when rtn == 0 > > > > in that new function (the name was only a suugestion), you can do all > > the checks which are now copy-pasted, e.g.: > > > > 458 rtn = pch_i2c_wait_for_xfer_complete(adap); > > 459 if (rtn == 0) { > > 460 if (pch_i2c_getack(adap)) { > > 461 pch_dbg(adap, "Receive NACK for slave address" > > 462 "setting\n"); > > 463 return -EIO; > > 464 } > > 465 } else if (rtn == -EIO) { /* Arbitration Lost */ > > 466 pch_err(adap, "Lost Arbitration\n"); > > 467 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMAL_BIT); > > 468 pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT); > > 469 pch_i2c_init(adap); > > 470 return -EAGAIN; > > 471 } else { /* wait-event timeout */ > > 472 pch_i2c_stop(adap); > > // Your current fixes added here > > 473 return -ETIME; > > 474 } > > return 0; > > > > It is only pseudo-code, but I think it can be done and will help the driver. > > > > OK. > I'm ready to submit new patch you are saying. Applied to next, thanks to the follow up patches :) -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec 2012-03-26 5:55 [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Tomoya MORINAGA 2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA @ 2012-03-26 5:55 ` Tomoya MORINAGA 2012-04-18 15:00 ` Wolfram Sang 2012-04-18 14:58 ` [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Wolfram Sang 2 siblings, 1 reply; 9+ messages in thread From: Tomoya MORINAGA @ 2012-03-26 5:55 UTC (permalink / raw) To: Jean Delvare, Ben Dooks, Wolfram Sang, Feng Tang, Alexander Stein, linux-i2c, linux-kernel Cc: qi.wang, yong.y.wang, joel.clark, kok.howg.ewe, Tomoya MORINAGA Currently, during i2c works alone, wait-event timeout is not occurred. However, as CPU load increases, timeout occurs frequently. So, I modified like this patch. Modifying like this patch, I've never seen the timeout event with high load test. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> --- drivers/i2c/busses/i2c-eg20t.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index 714b070..ec8f4fa 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -324,7 +324,7 @@ static s32 pch_i2c_wait_for_xfer_complete(struct i2c_algo_pch_data *adap) { long ret; ret = wait_event_timeout(pch_event, - (adap->pch_event_flag != 0), msecs_to_jiffies(50)); + (adap->pch_event_flag != 0), msecs_to_jiffies(1000)); if (ret == 0) { pch_err(adap, "timeout: %x\n", adap->pch_event_flag); -- 1.7.7.6 ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec 2012-03-26 5:55 ` [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec Tomoya MORINAGA @ 2012-04-18 15:00 ` Wolfram Sang 0 siblings, 0 replies; 9+ messages in thread From: Wolfram Sang @ 2012-04-18 15:00 UTC (permalink / raw) To: Tomoya MORINAGA Cc: Jean Delvare, Ben Dooks, Feng Tang, Alexander Stein, linux-i2c, linux-kernel, qi.wang, yong.y.wang, joel.clark, kok.howg.ewe [-- Attachment #1: Type: text/plain, Size: 637 bytes --] On Mon, Mar 26, 2012 at 02:55:25PM +0900, Tomoya MORINAGA wrote: > Currently, during i2c works alone, wait-event timeout is not occurred. > However, as CPU load increases, timeout occurs frequently. > So, I modified like this patch. > Modifying like this patch, I've never seen the timeout event with high > load test. > > Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Applied. (I think we need to clarify the timeouts in I2C, but for now this has to do.) -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address 2012-03-26 5:55 [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Tomoya MORINAGA 2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA 2012-03-26 5:55 ` [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec Tomoya MORINAGA @ 2012-04-18 14:58 ` Wolfram Sang 2 siblings, 0 replies; 9+ messages in thread From: Wolfram Sang @ 2012-04-18 14:58 UTC (permalink / raw) To: Tomoya MORINAGA Cc: Jean Delvare, Ben Dooks, Feng Tang, Alexander Stein, linux-i2c, linux-kernel, qi.wang, yong.y.wang, joel.clark, kok.howg.ewe [-- Attachment #1: Type: text/plain, Size: 299 bytes --] On Mon, Mar 26, 2012 at 02:55:23PM +0900, Tomoya MORINAGA wrote: > > Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Applied. -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 198 bytes --] ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-04-20 20:37 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-03-26 5:55 [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Tomoya MORINAGA 2012-03-26 5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA 2012-03-26 6:34 ` [PATCH 2/3 v2] " Tomoya MORINAGA 2012-04-18 15:05 ` [PATCH 2/3] " Wolfram Sang 2012-04-19 6:19 ` Tomoya MORINAGA 2012-04-20 20:37 ` Wolfram Sang 2012-03-26 5:55 ` [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec Tomoya MORINAGA 2012-04-18 15:00 ` Wolfram Sang 2012-04-18 14:58 ` [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Wolfram Sang
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