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power: pm8921-bms: remove support for pm8921 v1.0 and v1.1

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The bms module is reused in multiple pmics. It is now unnecessary
to check for 8921 versions in the driver. As a result of this change
older 8921 versions are not supported.

CRs-Fixed: 372679
Change-Id: Ie9131d47ed08fa6fa39812c9e60be34cc6280e4c
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
This commit is contained in:
Abhijeet Dharmapurikar 2012-06-21 16:15:43 -07:00 committed by Stephen Boyd
parent a06763ac29
commit 141fd301b7
1 changed files with 3 additions and 20 deletions
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23
drivers/power/pm8921-bms.c
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@ -472,29 +472,12 @@ static int adjust_xo_vbatt_reading(struct pm8921_bms_chip *chip,
* VBATT_MUL_FACTOR;
}
#define CC_RESOLUTION_N_V1 1085069
#define CC_RESOLUTION_D_V1 100000
#define CC_RESOLUTION_N_V2 868056
#define CC_RESOLUTION_D_V2 10000
static s64 cc_to_microvolt_v1(s64 cc)
{
return div_s64(cc * CC_RESOLUTION_N_V1, CC_RESOLUTION_D_V1);
}
static s64 cc_to_microvolt_v2(s64 cc)
{
return div_s64(cc * CC_RESOLUTION_N_V2, CC_RESOLUTION_D_V2);
}
#define CC_RESOLUTION_N 868056
#define CC_RESOLUTION_D 10000
static s64 cc_to_microvolt(struct pm8921_bms_chip *chip, s64 cc)
{
/*
* resolution (the value of a single bit) was changed after revision 2.0
* for more accurate readings
*/
return (chip->revision < PM8XXX_REVISION_8921_2p0) ?
cc_to_microvolt_v1((s64)cc) :
cc_to_microvolt_v2((s64)cc);
return div_s64(cc * CC_RESOLUTION_N, CC_RESOLUTION_D);
}
#define CC_READING_TICKS 55