kernel-fxtec-pro1x/drivers/hwmon/pmbus
Chu Lin ebb591b872 hwmon: (adm1275) Make sure we are reading enough data for different chips
[ Upstream commit 6d1d41c075a1a54ba03370e268171fec20e06563 ]

Issue:
When PEC is enabled, binding adm1272 to the adm1275 would
fail due to PEC error. See below:
adm1275: probe of xxxx failed with error -74

Diagnosis:
Per the datasheet of adm1272, adm1278, adm1293 and amd1294,
PMON_CONFIG (0xd4) is 16bits wide. On the other hand,
PMON_CONFIG (0xd4) for adm1275 is 8bits wide. The driver should not
assume everything is 8bits wide and read only 8bits from it.

Solution:
If it is adm1272, adm1278, adm1293 and adm1294, use i2c_read_word.
Else, use i2c_read_byte

Testing:
Binding adm1272 to the driver.
The change is only tested on adm1272.

Signed-off-by: Chu Lin <linchuyuan@google.com>
Link: https://lore.kernel.org/r/20200709040612.3977094-1-linchuyuan@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-07-29 10:16:53 +02:00
..
adm1275.c hwmon: (adm1275) Make sure we are reading enough data for different chips 2020-07-29 10:16:53 +02:00
ibm-cffps.c hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call 2020-01-23 08:21:39 +01:00
ir35221.c hwmon: (pmbus/ir35221) Remove unnecessary scaling 2018-01-15 04:22:46 -08:00
Kconfig hwmon: (pmbus/max34440) Add support for MAX34451. 2018-07-08 20:08:13 -07:00
lm25066.c hwmon: (pmbus/lm25066) Drop support for LM25063 2018-01-02 15:05:34 -08:00
ltc2978.c hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions. 2020-02-19 19:51:59 +01:00
ltc3815.c
Makefile hwmon updates for v4.15 2017-11-13 08:55:46 -08:00
max8688.c hwmon: (pmbus/max8688) Accept negative page register values 2018-03-10 18:59:47 -08:00
max16064.c
max20751.c
max31785.c hwmon: (max31785) Add OF device ID table 2018-01-02 15:05:34 -08:00
max34440.c hwmon: (pmbus/max34440) Add support for MAX34451. 2018-07-08 20:08:13 -07:00
pmbus.c hwmon: (pmbus) Fix page count auto-detection. 2018-11-13 11:08:16 -08:00
pmbus.h hwmon: (pmbus) Export pmbus device debugfs directory entry 2018-01-02 15:05:34 -08:00
pmbus_core.c hwmon: (pmbus/core) Treat parameters as paged if on multiple pages 2019-06-25 11:35:59 +08:00
tps40422.c
tps53679.c hwmon: (pmbus/tps53679) Fix driver info initialization in probe routine 2020-01-27 14:50:24 +01:00
ucd9000.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
ucd9200.c
zl6100.c