kernel: export some api symbol of pmic vote

Export some pmic-voter interfaces for dlkm usage as well
as create access functions that are exported for dlkm to
manipulate the struct.

charging DLKM need some api of pmic vote, but pmic_voter.o
is included by both qpnp-smb5-main.ko and qcom-qpnp-qg.ko,
KMI don't allow double export one function in two DLKM modules.

Change-Id: I56f96b663d9ee2228d91bd2efc6977a13f270de4
Signed-off-by: mahj8 <mahj8@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1822930
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Haijian Ma <mahj8@motorola.com>
Submit-Approved: Jira Key

drivers/power/supply/qcom/Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 obj-$(CONFIG_QPNP_SMB5) += qpnp-smb5-main.o
-qpnp-smb5-main-y += step-chg-jeita.o battery.o qpnp-smb5.o smb5-lib.o pmic-voter.o storm-watch.o schgm-flash.o battery-profile-loader.o smb5-iio.o
+qpnp-smb5-main-y += step-chg-jeita.o battery.o qpnp-smb5.o smb5-lib.o pmic-voter.o mmi-pmic-voter.o storm-watch.o schgm-flash.o battery-profile-loader.o smb5-iio.o
 obj-$(CONFIG_QPNP_QG)	+= qcom-qpnp-qg.o
 qcom-qpnp-qg-y	+= qpnp-qg.o battery-profile-loader.o pmic-voter.o qg-util.o qg-soc.o qg-sdam.o qg-battery-profile.o qg-profile-lib.o fg-alg.o
 obj-$(CONFIG_SMB1398_CHARGER)           += qcom-smb1398-charger.o

drivers/power/supply/qcom/mmi-pmic-voter.c

@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015-2017, 2019-2020, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/string.h>
+#include <linux/pmic-voter.h>
+#include <linux/mmi-pmic-voter.h>
+
+int mmi_get_effective_result(struct votable *votable)
+{
+	if(votable)
+		return get_effective_result(votable);
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(mmi_get_effective_result);
+
+int mmi_vote(struct votable *votable, const char *client_str, bool enabled, int val)
+{
+	if(votable)
+		return vote(votable, client_str, enabled, val);
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(mmi_vote);
+
+int mmi_rerun_election(struct votable *votable)
+{
+	if(votable)
+		return rerun_election(votable);
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(mmi_rerun_election);
+
+struct votable *mmi_find_votable(const char *name)
+{
+	return find_votable(name);
+}
+EXPORT_SYMBOL(mmi_find_votable);
+
+int mmi_pmic_vote_force_val_set(struct votable *votable, u32 val)
+{
+	return pmic_vote_force_val_set(votable, val);
+}
+EXPORT_SYMBOL(mmi_pmic_vote_force_val_set);
+
+int mmi_pmic_vote_force_active_get(struct votable *votable, u64 *val)
+{
+	return pmic_vote_force_active_get(votable, val);
+}
+EXPORT_SYMBOL(mmi_pmic_vote_force_active_get);
+
+int mmi_pmic_vote_force_active_set(struct votable *votable, u64 val)
+{
+	return pmic_vote_force_active_set(votable, val);
+}
+EXPORT_SYMBOL(mmi_pmic_vote_force_active_set);
+

include/linux/mmi-pmic-voter.h

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015-2017, 2019-2020, The Linux Foundation. All rights reserved.
+ */
+
+ #ifndef __MMI_PMIC_VOTER_H
+#define __MMI_PMIC_VOTER_H
+
+#include <linux/pmic-voter.h>
+
+int mmi_get_effective_result(struct votable *votable);
+int mmi_vote(struct votable *votable, const char *client_str, bool enabled, int val);
+int mmi_rerun_election(struct votable *votable);
+struct votable *mmi_find_votable(const char *name);
+int mmi_pmic_vote_force_val_set(struct votable *votable, u32 val);
+int mmi_pmic_vote_force_active_get(struct votable *votable, u64 *val);
+int mmi_pmic_vote_force_active_set(struct votable *votable, u64 val);
+
+#endif /* __MMI_PMIC_VOTER_H */