evie/android_kernel_oneplus_msm8998
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regulator: cprh-kbss-regulator: add per-cluster fuse reference voltages

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Allow specification of different fuse reference voltages for
the power and performance clusters of MSMCOBALTv2 and increase
the LowSVS fuse reference voltage of the performance cluster.
This allows operation at increased voltages for SVS2 to ensure
stable operation of MSMCOBALT v2 parts.

CRs-Fixed: 1062365
Change-Id: If9f35626303321439286bd62e664e68c05ef19c5
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>
This commit is contained in:
Osvaldo Banuelos 2016-09-01 10:12:11 -07:00
parent f6a9f4a202
commit 2fbd5cd8f9
1 changed files with 16 additions and 9 deletions
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17
drivers/regulator/cprh-kbss-regulator.c
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@ -207,11 +207,19 @@ msmcobalt_v1_kbss_fuse_ref_volt[MSMCOBALT_KBSS_FUSE_CORNERS] = {
* Open loop voltage fuse reference voltages in microvolts for MSMCOBALT v2
*/
static const int
msmcobalt_v2_kbss_fuse_ref_volt[MSMCOBALT_KBSS_FUSE_CORNERS] = {
msmcobalt_v2_kbss_fuse_ref_volt[2][MSMCOBALT_KBSS_FUSE_CORNERS] = {
[MSMCOBALT_KBSS_POWER_CLUSTER_ID] = {
688000,
756000,
828000,
1056000,
},
[MSMCOBALT_KBSS_PERFORMANCE_CLUSTER_ID] = {
756000,
756000,
828000,
1056000,
},
};
#define MSMCOBALT_KBSS_FUSE_STEP_VOLT 10000
@ -392,7 +400,7 @@ static int cprh_msmcobalt_kbss_calculate_open_loop_voltages(
{
struct device_node *node = vreg->of_node;
struct cprh_msmcobalt_kbss_fuses *fuse = vreg->platform_fuses;
int i, j, soc_revision, rc = 0;
int i, j, soc_revision, id, rc = 0;
bool allow_interpolation;
u64 freq_low, volt_low, freq_high, volt_high;
const int *ref_volt;
@ -408,13 +416,12 @@ static int cprh_msmcobalt_kbss_calculate_open_loop_voltages(
goto done;
}
id = vreg->thread->ctrl->ctrl_id;
soc_revision = vreg->thread->ctrl->soc_revision;
if (soc_revision == 1)
ref_volt = msmcobalt_v1_kbss_fuse_ref_volt;
else if (soc_revision == 2)
ref_volt = msmcobalt_v2_kbss_fuse_ref_volt;
else
ref_volt = msmcobalt_v2_kbss_fuse_ref_volt;
ref_volt = msmcobalt_v2_kbss_fuse_ref_volt[id];
for (i = 0; i < vreg->fuse_corner_count; i++) {
fuse_volt[i] = cpr3_convert_open_loop_voltage_fuse(