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* [PATCH v3 0/3] hwmon: tmp401: support for TMP435 and fix for a probe issue
@ 2014-12-04 16:45 Bartosz Golaszewski
  2014-12-04 16:45 ` [PATCH v3 1/3] hwmon: tmp401: add support for TI TMP435 Bartosz Golaszewski
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Bartosz Golaszewski @ 2014-12-04 16:45 UTC (permalink / raw)
  To: Guenter Roeck
  Cc: LKML, Benoit Cousson, Patrick Titiano, LM Sensors, Bartosz Golaszewski

This series adds support for the TI TMP435 chip and fixes an issue similar
to the one we observed for ina2xx - ignoring the write errors when probing the
device.

v3:
- remove the copyright notice from tmp401.c
- preinitialize status and skip an 'if'

v2:
- changed 'static const char *names' to 'static const char * const names'
  as checkpatch.pl still complained about this one,
- updated Documentation and Kconfig on TMP435,
- added missing error check in tmp401_init_client(),
- removed the redundant "Initialization failed" string since we'll get
  'tmp401: probe of X-00XX failed with error -121' anyway in dmesg,

v1:
https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg781930.html

Bartosz Golaszewski (2):
  hwmon: tmp401: add TMP435 to the list of supported chips in docs and Kconfig
  hwmon: tmp401: bail-out from tmp401_probe() in case of write errors

Patrick Titiano (1):
  hwmon: tmp401: add support for TI TMP435

 Documentation/hwmon/tmp401 |  7 +++++--
 drivers/hwmon/Kconfig      |  2 +-
 drivers/hwmon/tmp401.c     | 45 ++++++++++++++++++++++++++++++++-------------
 3 files changed, 38 insertions(+), 16 deletions(-)

-- 
2.1.3


^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH v3 1/3] hwmon: tmp401: add support for TI TMP435
@ 2014-12-04 21:24 Guenter Roeck
  0 siblings, 0 replies; 6+ messages in thread
From: Guenter Roeck @ 2014-12-04 21:24 UTC (permalink / raw)
  To: Bartosz Golaszewski; +Cc: LKML, Benoit Cousson, Patrick Titiano, LM Sensors

On Thu, Dec 04, 2014 at 05:45:51PM +0100, Bartosz Golaszewski wrote:
> From: Patrick Titiano <ptitiano@baylibre.com>
> 
> Signed-off-by: Patrick Titiano <ptitiano@baylibre.com>
> [Bartosz Golaszewski: prepared for submission, code review fixes]
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
>  drivers/hwmon/tmp401.c | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
> index 7fa6e7d..ccd9938 100644
> --- a/drivers/hwmon/tmp401.c
> +++ b/drivers/hwmon/tmp401.c
> @@ -46,7 +46,7 @@
>  /* Addresses to scan */
>  static const unsigned short normal_i2c[] = { 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
>  
> -enum chips { tmp401, tmp411, tmp431, tmp432 };
> +enum chips { tmp401, tmp411, tmp431, tmp432, tmp435 };
>  
>  /*
>   * The TMP401 registers, note some registers have different addresses for
> @@ -136,6 +136,7 @@ static const u8 TMP432_STATUS_REG[] = {
>  #define TMP411C_DEVICE_ID			0x10
>  #define TMP431_DEVICE_ID			0x31
>  #define TMP432_DEVICE_ID			0x32
> +#define TMP435_DEVICE_ID			0x35
>  
>  /*
>   * Driver data (common to all clients)
> @@ -146,6 +147,7 @@ static const struct i2c_device_id tmp401_id[] = {
>  	{ "tmp411", tmp411 },
>  	{ "tmp431", tmp431 },
>  	{ "tmp432", tmp432 },
> +	{ "tmp435", tmp435 },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(i2c, tmp401_id);
> @@ -684,6 +686,11 @@ static int tmp401_detect(struct i2c_client *client,
>  			return -ENODEV;
>  		kind = tmp432;
>  		break;
> +	case TMP435_DEVICE_ID:
> +		if (client->addr != 0x4c)
> +			return -ENODEV;

On second thought, is this really correct ?

I had another look into the datasheet. It seems to me that the chip
may support up to 9 different addresses, though that is a bit vague
since the datasheet first claims that the address would be 0x4c,
only to go on and list the 9 addresses (0x48 to 0x4f as well as 0x37)
in the next paragraph.

Thanks,
Guenter

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-12-04 21:24 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-12-04 16:45 [PATCH v3 0/3] hwmon: tmp401: support for TMP435 and fix for a probe issue Bartosz Golaszewski
2014-12-04 16:45 ` [PATCH v3 1/3] hwmon: tmp401: add support for TI TMP435 Bartosz Golaszewski
2014-12-04 16:45 ` [PATCH v3 2/3] hwmon: tmp401: add TMP435 to the list of supported chips in docs and Kconfig Bartosz Golaszewski
2014-12-04 16:45 ` [PATCH v3 3/3] hwmon: tmp401: bail-out from tmp401_probe() in case of write errors Bartosz Golaszewski
2014-12-04 19:02 ` [PATCH v3 0/3] hwmon: tmp401: support for TMP435 and fix for a probe issue Guenter Roeck
2014-12-04 21:24 [PATCH v3 1/3] hwmon: tmp401: add support for TI TMP435 Guenter Roeck

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