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Merge "spmi: spmi-pmic-arb: correct duplicate APID to PPID mapping logic"

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qctecmdr 2019-11-05 05:31:41 -08:00 • committed by Gerrit - the friendly Code Review server
commit b92915d4e6
1 changed files with 7 additions and 6 deletions
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13
drivers/spmi/spmi-pmic-arb.c
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@ -914,7 +914,8 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
* version 5, there is more than one APID mapped to each PPID.
* The owner field for each of these mappings specifies the EE which is
* allowed to write to the APID. The owner of the last (highest) APID
* for a given PPID will receive interrupts from the PPID.
* which has the IRQ owner bit set for a given PPID will receive
* interrupts from the PPID.
*/
for (i = 0; ; i++, apidd++) {
offset = pmic_arb->ver_ops->apid_map_offset(i);
@ -937,16 +938,16 @@ static int pmic_arb_read_apid_map_v5(struct spmi_pmic_arb *pmic_arb)
apid = pmic_arb->ppid_to_apid[ppid] & ~PMIC_ARB_APID_VALID;
prev_apidd = &pmic_arb->apid_data[apid];
if (valid && is_irq_ee &&
prev_apidd->write_ee == pmic_arb->ee) {
if (!valid || apidd->write_ee == pmic_arb->ee) {
/* First PPID mapping or one for this EE */
pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
} else if (valid && is_irq_ee &&
prev_apidd->write_ee == pmic_arb->ee) {
/*
* Duplicate PPID mapping after the one for this EE;
* override the irq owner
*/
prev_apidd->irq_ee = apidd->irq_ee;
} else if (!valid || is_irq_ee) {
/* First PPID mapping or duplicate for another EE */
pmic_arb->ppid_to_apid[ppid] = i | PMIC_ARB_APID_VALID;
}
apidd->ppid = ppid;