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regulator: bd71837: Disable voltage monitoring for LDO3/4

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There is a HW quirk in BD71837. The shutdown sequence timings for
bucks/LDOs which are enabled via register interface are changed.
At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the
beginning of shut-down sequence. This causes LDO5/6 voltage
monitoring to detect under voltage and force PMIC to emergency
state instead of poweroff. Disable voltage monitoring for LDO5 and
LDO6 at probe to avoid this.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Matti Vaittinen
2018-08-29 15:36:10 +03:00
committed by Mark Brown
parent 5b394b2ddf
commit 823f18f8b8
2 changed files with 49 additions and 3 deletions
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33
include/linux/mfd/rohm-bd718x7.h
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@@ -78,9 +78,9 @@ enum {
BD71837_REG_TRANS_COND0 = 0x1F,
BD71837_REG_TRANS_COND1 = 0x20,
BD71837_REG_VRFAULTEN = 0x21,
BD71837_REG_MVRFLTMASK0 = 0x22,
BD71837_REG_MVRFLTMASK1 = 0x23,
BD71837_REG_MVRFLTMASK2 = 0x24,
BD718XX_REG_MVRFLTMASK0 = 0x22,
BD718XX_REG_MVRFLTMASK1 = 0x23,
BD718XX_REG_MVRFLTMASK2 = 0x24,
BD71837_REG_RCVCFG = 0x25,
BD71837_REG_RCVNUM = 0x26,
BD71837_REG_PWRONCONFIG0 = 0x27,
@@ -159,6 +159,33 @@ enum {
#define BUCK8_MASK 0x3F
#define BUCK8_DEFAULT 0x1E
/* BD718XX Voltage monitoring masks */
#define BD718XX_BUCK1_VRMON80 0x1
#define BD718XX_BUCK1_VRMON130 0x2
#define BD718XX_BUCK2_VRMON80 0x4
#define BD718XX_BUCK2_VRMON130 0x8
#define BD718XX_1ST_NODVS_BUCK_VRMON80 0x1
#define BD718XX_1ST_NODVS_BUCK_VRMON130 0x2
#define BD718XX_2ND_NODVS_BUCK_VRMON80 0x4
#define BD718XX_2ND_NODVS_BUCK_VRMON130 0x8
#define BD718XX_3RD_NODVS_BUCK_VRMON80 0x10
#define BD718XX_3RD_NODVS_BUCK_VRMON130 0x20
#define BD718XX_4TH_NODVS_BUCK_VRMON80 0x40
#define BD718XX_4TH_NODVS_BUCK_VRMON130 0x80
#define BD718XX_LDO1_VRMON80 0x1
#define BD718XX_LDO2_VRMON80 0x2
#define BD718XX_LDO3_VRMON80 0x4
#define BD718XX_LDO4_VRMON80 0x8
#define BD718XX_LDO5_VRMON80 0x10
#define BD718XX_LDO6_VRMON80 0x20
/* BD71837 specific voltage monitoring masks */
#define BD71837_BUCK3_VRMON80 0x10
#define BD71837_BUCK3_VRMON130 0x20
#define BD71837_BUCK4_VRMON80 0x40
#define BD71837_BUCK4_VRMON130 0x80
#define BD71837_LDO7_VRMON80 0x40
/* BD71837_REG_IRQ bits */
#define IRQ_SWRST 0x40
#define IRQ_PWRON_S 0x20