From 9fc6adfa9adf2be84119a3c2592287f33bd1dff2 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 31 Jul 2005 21:20:43 +0200 Subject: [PATCH] [PATCH] hwmon: hwmon vs i2c, second round (01/11) Add support for kind-forced addresses to i2c_probe, like i2c_detect has for (essentially) hardware monitoring drivers. Note that this change will slightly increase the size of the drivers using I2C_CLIENT_INSMOD, with no immediate benefit. This is a requirement if we want to merge i2c_probe and i2c_detect though, and seems a reasonable price to pay in comparison with the previous cleanups which saved much more than that (such as the i2c-isa cleanup or the i2c address ranges removal.) Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/chips/ds1374.c | 1 - drivers/i2c/chips/m41t00.c | 1 - drivers/i2c/chips/rtc8564.c | 1 - drivers/i2c/i2c-core.c | 38 +++++++++++++++++++++++--------- drivers/media/video/adv7170.c | 1 - drivers/media/video/adv7175.c | 1 - drivers/media/video/bt819.c | 1 - drivers/media/video/bt856.c | 1 - drivers/media/video/saa7110.c | 1 - drivers/media/video/saa7111.c | 1 - drivers/media/video/saa7114.c | 1 - drivers/media/video/saa7185.c | 1 - drivers/media/video/tuner-3036.c | 1 - drivers/media/video/vpx3220.c | 1 - include/linux/i2c.h | 9 +++++--- 15 files changed, 34 insertions(+), 26 deletions(-) diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c index a445736d8838..e2d1daf79880 100644 --- a/drivers/i2c/chips/ds1374.c +++ b/drivers/i2c/chips/ds1374.c @@ -53,7 +53,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_addr, .probe = ignore, .ignore = ignore, - .force = ignore, }; static ulong ds1374_read_rtc(void) diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c index 778d7e12859d..e516dadc453f 100644 --- a/drivers/i2c/chips/m41t00.c +++ b/drivers/i2c/chips/m41t00.c @@ -42,7 +42,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_addr, .probe = ignore, .ignore = ignore, - .force = ignore, }; ulong diff --git a/drivers/i2c/chips/rtc8564.c b/drivers/i2c/chips/rtc8564.c index 588fc2261a91..0b5385c892b1 100644 --- a/drivers/i2c/chips/rtc8564.c +++ b/drivers/i2c/chips/rtc8564.c @@ -67,7 +67,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_addr, .probe = ignore, .ignore = ignore, - .force = ignore, }; static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem); diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 19d8a994b3b7..372b5996d045 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -662,6 +662,28 @@ int i2c_control(struct i2c_client *client, * Will not work for 10-bit addresses! * ---------------------------------------------------- */ +/* Return: kind (>= 0) if force found, -1 if not found */ +static inline int i2c_probe_forces(struct i2c_adapter *adapter, int addr, + unsigned short **forces) +{ + unsigned short kind; + int j, adap_id = i2c_adapter_id(adapter); + + for (kind = 0; forces[kind]; kind++) { + for (j = 0; forces[kind][j] != I2C_CLIENT_END; j += 2) { + if ((forces[kind][j] == adap_id || + forces[kind][j] == ANY_I2C_BUS) + && forces[kind][j + 1] == addr) { + dev_dbg(&adapter->dev, "found force parameter, " + "addr 0x%02x, kind %u\n", addr, kind); + return kind; + } + } + } + + return -1; +} + int i2c_probe(struct i2c_adapter *adapter, struct i2c_client_address_data *address_data, int (*found_proc) (struct i2c_adapter *, int, int)) @@ -683,19 +705,15 @@ int i2c_probe(struct i2c_adapter *adapter, at all */ found = 0; - for (i = 0; !found && (address_data->force[i] != I2C_CLIENT_END); i += 2) { - if (((adap_id == address_data->force[i]) || - (address_data->force[i] == ANY_I2C_BUS)) && - (addr == address_data->force[i+1])) { - dev_dbg(&adapter->dev, "found force parameter for adapter %d, addr %04x\n", - adap_id, addr); - if ((err = found_proc(adapter,addr,0))) + if (address_data->forces) { + int kind = i2c_probe_forces(adapter, addr, + address_data->forces); + if (kind >= 0) { /* force found */ + if ((err = found_proc(adapter, addr, kind))) return err; - found = 1; + continue; } } - if (found) - continue; /* If this address is in one of the ignores, we can forget about it right now */ diff --git a/drivers/media/video/adv7170.c b/drivers/media/video/adv7170.c index 48989eda2400..52e32f05d625 100644 --- a/drivers/media/video/adv7170.c +++ b/drivers/media/video/adv7170.c @@ -391,7 +391,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_adv7170; diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c index f898b6586374..b5ed9544bdea 100644 --- a/drivers/media/video/adv7175.c +++ b/drivers/media/video/adv7175.c @@ -441,7 +441,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_adv7175; diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c index 8733588f6db3..c6cfa7c48b04 100644 --- a/drivers/media/video/bt819.c +++ b/drivers/media/video/bt819.c @@ -507,7 +507,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_bt819; diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c index a5d529ccf3ad..c13d28658868 100644 --- a/drivers/media/video/bt856.c +++ b/drivers/media/video/bt856.c @@ -295,7 +295,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_bt856; diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c index 22d055d8a695..e116bdbed310 100644 --- a/drivers/media/video/saa7110.c +++ b/drivers/media/video/saa7110.c @@ -470,7 +470,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_saa7110; diff --git a/drivers/media/video/saa7111.c b/drivers/media/video/saa7111.c index fcd897382fcf..f18df53d98ff 100644 --- a/drivers/media/video/saa7111.c +++ b/drivers/media/video/saa7111.c @@ -489,7 +489,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_saa7111; diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c index 2ba997f5ef1d..e0c70f54f073 100644 --- a/drivers/media/video/saa7114.c +++ b/drivers/media/video/saa7114.c @@ -827,7 +827,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_saa7114; diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c index 108e7a4a0273..e93412f4407c 100644 --- a/drivers/media/video/saa7185.c +++ b/drivers/media/video/saa7185.c @@ -387,7 +387,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver i2c_driver_saa7185; diff --git a/drivers/media/video/tuner-3036.c b/drivers/media/video/tuner-3036.c index 7d825e510ffd..103def1abe3c 100644 --- a/drivers/media/video/tuner-3036.c +++ b/drivers/media/video/tuner-3036.c @@ -41,7 +41,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; /* ---------------------------------------------------------------------- */ diff --git a/drivers/media/video/vpx3220.c b/drivers/media/video/vpx3220.c index 5dbd9f6bf353..4437bdebe24f 100644 --- a/drivers/media/video/vpx3220.c +++ b/drivers/media/video/vpx3220.c @@ -576,7 +576,6 @@ static struct i2c_client_address_data addr_data = { .normal_i2c = normal_i2c, .probe = &ignore, .ignore = &ignore, - .force = &ignore, }; static struct i2c_driver vpx3220_i2c_driver; diff --git a/include/linux/i2c.h b/include/linux/i2c.h index ad1c0fb164bc..9419bc5584ad 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -48,7 +48,6 @@ struct i2c_algorithm; struct i2c_adapter; struct i2c_client; struct i2c_driver; -struct i2c_client_address_data; union i2c_smbus_data; /* @@ -301,7 +300,7 @@ struct i2c_client_address_data { unsigned short *normal_i2c; unsigned short *probe; unsigned short *ignore; - unsigned short *force; + unsigned short **forces; }; /* Internal numbers to terminate lists */ @@ -575,11 +574,15 @@ union i2c_smbus_data { I2C_CLIENT_MODULE_PARM(force, \ "List of adapter,address pairs to boldly assume " \ "to be present"); \ + static unsigned short *addr_forces[] = { \ + force, \ + NULL \ + }; \ static struct i2c_client_address_data addr_data = { \ .normal_i2c = normal_i2c, \ .probe = probe, \ .ignore = ignore, \ - .force = force, \ + .forces = addr_forces, \ } #endif /* _LINUX_I2C_H */ -- GitLab