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regulator: ltc3676: Fix incorrect IRQSTAT bit offsets

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commit 50dce2e2f8 upstream.

The LTC3676_IRQSTAT_* bit definitions do not match the IRQSTAT
(Interrupt Request Status) register layout documented in Table 15
of the LTC3676/LTC3676-1 datasheet:

  bit 0 - Pushbutton Status Active
  bit 1 - Hard Reset Occurred
  bit 2 - PGOOD Timeout Occurred
  bit 3 - Undervoltage Warning
  bit 4 - Undervoltage Standby (Fault) Occurred
  bit 5 - Overtemperature Warning
  bit 6 - Overtemperature Standby (Fault) Occurred
  bit 7 - Reserved

The driver instead defines these starting at bit 3, one bit higher
than the datasheet specifies, which causes ltc3676_regulator_isr()
to check the wrong status bits and misreport (or miss) PGOOD
timeout, undervoltage and thermal warning/fault conditions.

Fix the bit offsets to match the datasheet.

Fixes: 37b918a034 ("regulator: Add LTC3676 support")
Cc: stable@vger.kernel.org
Signed-off-by: Abhishek Ojha <Abhishek.ojha@savoirfairelinux.com>
Link: https://patch.msgid.link/20260715170408.295552-1-Abhishek.ojha@savoirfairelinux.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abhishek Ojha
2026-07-24 15:55:10 +02:00
committed by Greg Kroah-Hartman
parent 08b71bd923
commit 2e3e88cc7f
1 changed files with 5 additions and 5 deletions
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drivers/regulator/ltc3676.c
+5 -5
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@@ -45,11 +45,11 @@
#define LTC3676_DVBxA_REF_SELECT BIT(5)
#define LTC3676_DVBxB_PGOOD_MASK BIT(5)
#define LTC3676_IRQSTAT_PGOOD_TIMEOUT BIT(3)
#define LTC3676_IRQSTAT_UNDERVOLT_WARN BIT(4)
#define LTC3676_IRQSTAT_UNDERVOLT_FAULT BIT(5)
#define LTC3676_IRQSTAT_THERMAL_WARN BIT(6)
#define LTC3676_IRQSTAT_THERMAL_FAULT BIT(7)
#define LTC3676_IRQSTAT_PGOOD_TIMEOUT BIT(2)
#define LTC3676_IRQSTAT_UNDERVOLT_WARN BIT(3)
#define LTC3676_IRQSTAT_UNDERVOLT_FAULT BIT(4)
#define LTC3676_IRQSTAT_THERMAL_WARN BIT(5)
#define LTC3676_IRQSTAT_THERMAL_FAULT BIT(6)
enum ltc3676_reg {
LTC3676_SW1,