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path: root/drivers/genpd/qcom/rpmpd.c
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Diffstat (limited to 'drivers/genpd/qcom/rpmpd.c')
-rw-r--r--drivers/genpd/qcom/rpmpd.c1023
1 files changed, 1023 insertions, 0 deletions
diff --git a/drivers/genpd/qcom/rpmpd.c b/drivers/genpd/qcom/rpmpd.c
new file mode 100644
index 000000000000..3135dd1dafe0
--- /dev/null
+++ b/drivers/genpd/qcom/rpmpd.c
@@ -0,0 +1,1023 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/pm_domain.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_opp.h>
+#include <linux/soc/qcom/smd-rpm.h>
+
+#include <dt-bindings/power/qcom-rpmpd.h>
+
+#define domain_to_rpmpd(domain) container_of(domain, struct rpmpd, pd)
+
+/* Resource types:
+ * RPMPD_X is X encoded as a little-endian, lower-case, ASCII string */
+#define RPMPD_SMPA 0x61706d73
+#define RPMPD_LDOA 0x616f646c
+#define RPMPD_SMPB 0x62706d73
+#define RPMPD_LDOB 0x626f646c
+#define RPMPD_RWCX 0x78637772
+#define RPMPD_RWMX 0x786d7772
+#define RPMPD_RWLC 0x636c7772
+#define RPMPD_RWLM 0x6d6c7772
+#define RPMPD_RWSC 0x63737772
+#define RPMPD_RWSM 0x6d737772
+#define RPMPD_RWGX 0x78677772
+
+/* Operation Keys */
+#define KEY_CORNER 0x6e726f63 /* corn */
+#define KEY_ENABLE 0x6e657773 /* swen */
+#define KEY_FLOOR_CORNER 0x636676 /* vfc */
+#define KEY_FLOOR_LEVEL 0x6c6676 /* vfl */
+#define KEY_LEVEL 0x6c766c76 /* vlvl */
+
+#define MAX_CORNER_RPMPD_STATE 6
+
+struct rpmpd_req {
+ __le32 key;
+ __le32 nbytes;
+ __le32 value;
+};
+
+struct rpmpd {
+ struct generic_pm_domain pd;
+ struct generic_pm_domain *parent;
+ struct rpmpd *peer;
+ const bool active_only;
+ unsigned int corner;
+ bool enabled;
+ const int res_type;
+ const int res_id;
+ struct qcom_smd_rpm *rpm;
+ unsigned int max_state;
+ __le32 key;
+ bool state_synced;
+};
+
+struct rpmpd_desc {
+ struct rpmpd **rpmpds;
+ size_t num_pds;
+ unsigned int max_state;
+};
+
+static DEFINE_MUTEX(rpmpd_lock);
+
+/* CX */
+static struct rpmpd cx_rwcx0_lvl_ao;
+static struct rpmpd cx_rwcx0_lvl = {
+ .pd = { .name = "cx", },
+ .peer = &cx_rwcx0_lvl_ao,
+ .res_type = RPMPD_RWCX,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_rwcx0_lvl_ao = {
+ .pd = { .name = "cx_ao", },
+ .peer = &cx_rwcx0_lvl,
+ .active_only = true,
+ .res_type = RPMPD_RWCX,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_s1a_corner_ao;
+static struct rpmpd cx_s1a_corner = {
+ .pd = { .name = "cx", },
+ .peer = &cx_s1a_corner_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd cx_s1a_corner_ao = {
+ .pd = { .name = "cx_ao", },
+ .peer = &cx_s1a_corner,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd cx_s2a_corner_ao;
+static struct rpmpd cx_s2a_corner = {
+ .pd = { .name = "cx", },
+ .peer = &cx_s2a_corner_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd cx_s2a_corner_ao = {
+ .pd = { .name = "cx_ao", },
+ .peer = &cx_s2a_corner,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd cx_s2a_lvl_ao;
+static struct rpmpd cx_s2a_lvl = {
+ .pd = { .name = "cx", },
+ .peer = &cx_s2a_lvl_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_s2a_lvl_ao = {
+ .pd = { .name = "cx_ao", },
+ .peer = &cx_s2a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_s3a_lvl_ao;
+static struct rpmpd cx_s3a_lvl = {
+ .pd = { .name = "cx", },
+ .peer = &cx_s3a_lvl_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 3,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_s3a_lvl_ao = {
+ .pd = { .name = "cx_ao", },
+ .peer = &cx_s3a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 3,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd cx_rwcx0_vfl = {
+ .pd = { .name = "cx_vfl", },
+ .res_type = RPMPD_RWCX,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd cx_rwsc2_vfl = {
+ .pd = { .name = "cx_vfl", },
+ .res_type = RPMPD_RWSC,
+ .res_id = 2,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd cx_s1a_vfc = {
+ .pd = { .name = "cx_vfc", },
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_FLOOR_CORNER,
+};
+
+static struct rpmpd cx_s2a_vfc = {
+ .pd = { .name = "cx_vfc", },
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_FLOOR_CORNER,
+};
+
+static struct rpmpd cx_s2a_vfl = {
+ .pd = { .name = "cx_vfl", },
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd cx_s3a_vfl = {
+ .pd = { .name = "cx_vfl", },
+ .res_type = RPMPD_SMPA,
+ .res_id = 3,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+/* G(F)X */
+static struct rpmpd gfx_s2b_corner = {
+ .pd = { .name = "gfx", },
+ .res_type = RPMPD_SMPB,
+ .res_id = 2,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd gfx_s2b_vfc = {
+ .pd = { .name = "gfx_vfc", },
+ .res_type = RPMPD_SMPB,
+ .res_id = 2,
+ .key = KEY_FLOOR_CORNER,
+};
+
+static struct rpmpd mx_rwmx0_lvl;
+static struct rpmpd gx_rwgx0_lvl_ao;
+static struct rpmpd gx_rwgx0_lvl = {
+ .pd = { .name = "gx", },
+ .peer = &gx_rwgx0_lvl_ao,
+ .res_type = RPMPD_RWGX,
+ .parent = &mx_rwmx0_lvl.pd,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_rwmx0_lvl_ao;
+static struct rpmpd gx_rwgx0_lvl_ao = {
+ .pd = { .name = "gx_ao", },
+ .peer = &gx_rwgx0_lvl,
+ .parent = &mx_rwmx0_lvl_ao.pd,
+ .active_only = true,
+ .res_type = RPMPD_RWGX,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+/* MX */
+static struct rpmpd mx_l3a_corner_ao;
+static struct rpmpd mx_l3a_corner = {
+ .pd = { .name = "mx", },
+ .peer = &mx_l3a_corner_ao,
+ .res_type = RPMPD_LDOA,
+ .res_id = 3,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd mx_l3a_corner_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_l3a_corner,
+ .active_only = true,
+ .res_type = RPMPD_LDOA,
+ .res_id = 3,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd mx_l12a_lvl_ao;
+static struct rpmpd mx_l12a_lvl = {
+ .pd = { .name = "mx", },
+ .peer = &mx_l12a_lvl_ao,
+ .res_type = RPMPD_LDOA,
+ .res_id = 12,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_l12a_lvl_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_l12a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_LDOA,
+ .res_id = 12,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_s2a_corner_ao;
+static struct rpmpd mx_s2a_corner = {
+ .pd = { .name = "mx", },
+ .peer = &mx_s2a_corner_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd mx_s2a_corner_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_s2a_corner,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 2,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd mx_rwmx0_lvl_ao;
+static struct rpmpd mx_rwmx0_lvl = {
+ .pd = { .name = "mx", },
+ .peer = &mx_rwmx0_lvl_ao,
+ .res_type = RPMPD_RWMX,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_rwmx0_lvl_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_rwmx0_lvl,
+ .active_only = true,
+ .res_type = RPMPD_RWMX,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_s6a_lvl_ao;
+static struct rpmpd mx_s6a_lvl = {
+ .pd = { .name = "mx", },
+ .peer = &mx_s6a_lvl_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 6,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_s6a_lvl_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_s6a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 6,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_s7a_lvl_ao;
+static struct rpmpd mx_s7a_lvl = {
+ .pd = { .name = "mx", },
+ .peer = &mx_s7a_lvl_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 7,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_s7a_lvl_ao = {
+ .pd = { .name = "mx_ao", },
+ .peer = &mx_s7a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 7,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd mx_l12a_vfl = {
+ .pd = { .name = "mx_vfl", },
+ .res_type = RPMPD_LDOA,
+ .res_id = 12,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd mx_rwmx0_vfl = {
+ .pd = { .name = "mx_vfl", },
+ .res_type = RPMPD_RWMX,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd mx_rwsm6_vfl = {
+ .pd = { .name = "mx_vfl", },
+ .res_type = RPMPD_RWSM,
+ .res_id = 6,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+/* MD */
+static struct rpmpd md_s1a_corner_ao;
+static struct rpmpd md_s1a_corner = {
+ .pd = { .name = "md", },
+ .peer = &md_s1a_corner_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd md_s1a_corner_ao = {
+ .pd = { .name = "md_ao", },
+ .peer = &md_s1a_corner,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd md_s1a_lvl_ao;
+static struct rpmpd md_s1a_lvl = {
+ .pd = { .name = "md", },
+ .peer = &md_s1a_lvl_ao,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd md_s1a_lvl_ao = {
+ .pd = { .name = "md_ao", },
+ .peer = &md_s1a_lvl,
+ .active_only = true,
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd md_s1a_vfc = {
+ .pd = { .name = "md_vfc", },
+ .res_type = RPMPD_SMPA,
+ .res_id = 1,
+ .key = KEY_FLOOR_CORNER,
+};
+
+/* LPI_CX */
+static struct rpmpd lpi_cx_rwlc0_lvl = {
+ .pd = { .name = "lpi_cx", },
+ .res_type = RPMPD_RWLC,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd lpi_cx_rwlc0_vfl = {
+ .pd = { .name = "lpi_cx_vfl", },
+ .res_type = RPMPD_RWLC,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+/* LPI_MX */
+static struct rpmpd lpi_mx_rwlm0_lvl = {
+ .pd = { .name = "lpi_mx", },
+ .res_type = RPMPD_RWLM,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd lpi_mx_rwlm0_vfl = {
+ .pd = { .name = "lpi_mx_vfl", },
+ .res_type = RPMPD_RWLM,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+/* SSC_CX */
+static struct rpmpd ssc_cx_l26a_corner = {
+ .pd = { .name = "ssc_cx", },
+ .res_type = RPMPD_LDOA,
+ .res_id = 26,
+ .key = KEY_CORNER,
+};
+
+static struct rpmpd ssc_cx_rwlc0_lvl = {
+ .pd = { .name = "ssc_cx", },
+ .res_type = RPMPD_RWLC,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd ssc_cx_rwsc0_lvl = {
+ .pd = { .name = "ssc_cx", },
+ .res_type = RPMPD_RWSC,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd ssc_cx_l26a_vfc = {
+ .pd = { .name = "ssc_cx_vfc", },
+ .res_type = RPMPD_LDOA,
+ .res_id = 26,
+ .key = KEY_FLOOR_CORNER,
+};
+
+static struct rpmpd ssc_cx_rwlc0_vfl = {
+ .pd = { .name = "ssc_cx_vfl", },
+ .res_type = RPMPD_RWLC,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd ssc_cx_rwsc0_vfl = {
+ .pd = { .name = "ssc_cx_vfl", },
+ .res_type = RPMPD_RWSC,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+/* SSC_MX */
+static struct rpmpd ssc_mx_rwlm0_lvl = {
+ .pd = { .name = "ssc_mx", },
+ .res_type = RPMPD_RWLM,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd ssc_mx_rwsm0_lvl = {
+ .pd = { .name = "ssc_mx", },
+ .res_type = RPMPD_RWSM,
+ .res_id = 0,
+ .key = KEY_LEVEL,
+};
+
+static struct rpmpd ssc_mx_rwlm0_vfl = {
+ .pd = { .name = "ssc_mx_vfl", },
+ .res_type = RPMPD_RWLM,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd ssc_mx_rwsm0_vfl = {
+ .pd = { .name = "ssc_mx_vfl", },
+ .res_type = RPMPD_RWSM,
+ .res_id = 0,
+ .key = KEY_FLOOR_LEVEL,
+};
+
+static struct rpmpd *mdm9607_rpmpds[] = {
+ [MDM9607_VDDCX] = &cx_s3a_lvl,
+ [MDM9607_VDDCX_AO] = &cx_s3a_lvl_ao,
+ [MDM9607_VDDCX_VFL] = &cx_s3a_vfl,
+ [MDM9607_VDDMX] = &mx_l12a_lvl,
+ [MDM9607_VDDMX_AO] = &mx_l12a_lvl_ao,
+ [MDM9607_VDDMX_VFL] = &mx_l12a_vfl,
+};
+
+static const struct rpmpd_desc mdm9607_desc = {
+ .rpmpds = mdm9607_rpmpds,
+ .num_pds = ARRAY_SIZE(mdm9607_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO,
+};
+
+static struct rpmpd *msm8226_rpmpds[] = {
+ [MSM8226_VDDCX] = &cx_s1a_corner,
+ [MSM8226_VDDCX_AO] = &cx_s1a_corner_ao,
+ [MSM8226_VDDCX_VFC] = &cx_s1a_vfc,
+};
+
+static const struct rpmpd_desc msm8226_desc = {
+ .rpmpds = msm8226_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8226_rpmpds),
+ .max_state = MAX_CORNER_RPMPD_STATE,
+};
+
+static struct rpmpd *msm8939_rpmpds[] = {
+ [MSM8939_VDDMDCX] = &md_s1a_corner,
+ [MSM8939_VDDMDCX_AO] = &md_s1a_corner_ao,
+ [MSM8939_VDDMDCX_VFC] = &md_s1a_vfc,
+ [MSM8939_VDDCX] = &cx_s2a_corner,
+ [MSM8939_VDDCX_AO] = &cx_s2a_corner_ao,
+ [MSM8939_VDDCX_VFC] = &cx_s2a_vfc,
+ [MSM8939_VDDMX] = &mx_l3a_corner,
+ [MSM8939_VDDMX_AO] = &mx_l3a_corner_ao,
+};
+
+static const struct rpmpd_desc msm8939_desc = {
+ .rpmpds = msm8939_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8939_rpmpds),
+ .max_state = MAX_CORNER_RPMPD_STATE,
+};
+
+static struct rpmpd *msm8916_rpmpds[] = {
+ [MSM8916_VDDCX] = &cx_s1a_corner,
+ [MSM8916_VDDCX_AO] = &cx_s1a_corner_ao,
+ [MSM8916_VDDCX_VFC] = &cx_s1a_vfc,
+ [MSM8916_VDDMX] = &mx_l3a_corner,
+ [MSM8916_VDDMX_AO] = &mx_l3a_corner_ao,
+};
+
+static const struct rpmpd_desc msm8916_desc = {
+ .rpmpds = msm8916_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8916_rpmpds),
+ .max_state = MAX_CORNER_RPMPD_STATE,
+};
+
+static struct rpmpd *msm8953_rpmpds[] = {
+ [MSM8953_VDDMD] = &md_s1a_lvl,
+ [MSM8953_VDDMD_AO] = &md_s1a_lvl_ao,
+ [MSM8953_VDDCX] = &cx_s2a_lvl,
+ [MSM8953_VDDCX_AO] = &cx_s2a_lvl_ao,
+ [MSM8953_VDDCX_VFL] = &cx_s2a_vfl,
+ [MSM8953_VDDMX] = &mx_s7a_lvl,
+ [MSM8953_VDDMX_AO] = &mx_s7a_lvl_ao,
+};
+
+static const struct rpmpd_desc msm8953_desc = {
+ .rpmpds = msm8953_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8953_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO,
+};
+
+static struct rpmpd *msm8976_rpmpds[] = {
+ [MSM8976_VDDCX] = &cx_s2a_lvl,
+ [MSM8976_VDDCX_AO] = &cx_s2a_lvl_ao,
+ [MSM8976_VDDCX_VFL] = &cx_rwsc2_vfl,
+ [MSM8976_VDDMX] = &mx_s6a_lvl,
+ [MSM8976_VDDMX_AO] = &mx_s6a_lvl_ao,
+ [MSM8976_VDDMX_VFL] = &mx_rwsm6_vfl,
+};
+
+static const struct rpmpd_desc msm8976_desc = {
+ .rpmpds = msm8976_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8976_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO_HIGH,
+};
+
+static struct rpmpd *msm8994_rpmpds[] = {
+ [MSM8994_VDDCX] = &cx_s1a_corner,
+ [MSM8994_VDDCX_AO] = &cx_s1a_corner_ao,
+ [MSM8994_VDDCX_VFC] = &cx_s1a_vfc,
+ [MSM8994_VDDMX] = &mx_s2a_corner,
+ [MSM8994_VDDMX_AO] = &mx_s2a_corner_ao,
+
+ /* Attention! *Some* 8994 boards with pm8004 may use SMPC here! */
+ [MSM8994_VDDGFX] = &gfx_s2b_corner,
+ [MSM8994_VDDGFX_VFC] = &gfx_s2b_vfc,
+};
+
+static const struct rpmpd_desc msm8994_desc = {
+ .rpmpds = msm8994_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8994_rpmpds),
+ .max_state = MAX_CORNER_RPMPD_STATE,
+};
+
+static struct rpmpd *msm8996_rpmpds[] = {
+ [MSM8996_VDDCX] = &cx_s1a_corner,
+ [MSM8996_VDDCX_AO] = &cx_s1a_corner_ao,
+ [MSM8996_VDDCX_VFC] = &cx_s1a_vfc,
+ [MSM8996_VDDMX] = &mx_s2a_corner,
+ [MSM8996_VDDMX_AO] = &mx_s2a_corner_ao,
+ [MSM8996_VDDSSCX] = &ssc_cx_l26a_corner,
+ [MSM8996_VDDSSCX_VFC] = &ssc_cx_l26a_vfc,
+};
+
+static const struct rpmpd_desc msm8996_desc = {
+ .rpmpds = msm8996_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8996_rpmpds),
+ .max_state = MAX_CORNER_RPMPD_STATE,
+};
+
+static struct rpmpd *msm8998_rpmpds[] = {
+ [MSM8998_VDDCX] = &cx_rwcx0_lvl,
+ [MSM8998_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [MSM8998_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [MSM8998_VDDMX] = &mx_rwmx0_lvl,
+ [MSM8998_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [MSM8998_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [MSM8998_SSCCX] = &ssc_cx_rwsc0_lvl,
+ [MSM8998_SSCCX_VFL] = &ssc_cx_rwsc0_vfl,
+ [MSM8998_SSCMX] = &ssc_mx_rwsm0_lvl,
+ [MSM8998_SSCMX_VFL] = &ssc_mx_rwsm0_vfl,
+};
+
+static const struct rpmpd_desc msm8998_desc = {
+ .rpmpds = msm8998_rpmpds,
+ .num_pds = ARRAY_SIZE(msm8998_rpmpds),
+ .max_state = RPM_SMD_LEVEL_BINNING,
+};
+
+static struct rpmpd *qcs404_rpmpds[] = {
+ [QCS404_VDDMX] = &mx_rwmx0_lvl,
+ [QCS404_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [QCS404_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [QCS404_LPICX] = &lpi_cx_rwlc0_lvl,
+ [QCS404_LPICX_VFL] = &lpi_cx_rwlc0_vfl,
+ [QCS404_LPIMX] = &lpi_mx_rwlm0_lvl,
+ [QCS404_LPIMX_VFL] = &lpi_mx_rwlm0_vfl,
+};
+
+static const struct rpmpd_desc qcs404_desc = {
+ .rpmpds = qcs404_rpmpds,
+ .num_pds = ARRAY_SIZE(qcs404_rpmpds),
+ .max_state = RPM_SMD_LEVEL_BINNING,
+};
+
+static struct rpmpd *sdm660_rpmpds[] = {
+ [SDM660_VDDCX] = &cx_rwcx0_lvl,
+ [SDM660_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [SDM660_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [SDM660_VDDMX] = &mx_rwmx0_lvl,
+ [SDM660_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [SDM660_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [SDM660_SSCCX] = &ssc_cx_rwlc0_lvl,
+ [SDM660_SSCCX_VFL] = &ssc_cx_rwlc0_vfl,
+ [SDM660_SSCMX] = &ssc_mx_rwlm0_lvl,
+ [SDM660_SSCMX_VFL] = &ssc_mx_rwlm0_vfl,
+};
+
+static const struct rpmpd_desc sdm660_desc = {
+ .rpmpds = sdm660_rpmpds,
+ .num_pds = ARRAY_SIZE(sdm660_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO,
+};
+
+static struct rpmpd *sm6115_rpmpds[] = {
+ [SM6115_VDDCX] = &cx_rwcx0_lvl,
+ [SM6115_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [SM6115_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [SM6115_VDDMX] = &mx_rwmx0_lvl,
+ [SM6115_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [SM6115_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [SM6115_VDD_LPI_CX] = &lpi_cx_rwlc0_lvl,
+ [SM6115_VDD_LPI_MX] = &lpi_mx_rwlm0_lvl,
+};
+
+static const struct rpmpd_desc sm6115_desc = {
+ .rpmpds = sm6115_rpmpds,
+ .num_pds = ARRAY_SIZE(sm6115_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO_NO_CPR,
+};
+
+static struct rpmpd *sm6125_rpmpds[] = {
+ [SM6125_VDDCX] = &cx_rwcx0_lvl,
+ [SM6125_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [SM6125_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [SM6125_VDDMX] = &mx_rwmx0_lvl,
+ [SM6125_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [SM6125_VDDMX_VFL] = &mx_rwmx0_vfl,
+};
+
+static const struct rpmpd_desc sm6125_desc = {
+ .rpmpds = sm6125_rpmpds,
+ .num_pds = ARRAY_SIZE(sm6125_rpmpds),
+ .max_state = RPM_SMD_LEVEL_BINNING,
+};
+
+static struct rpmpd *sm6375_rpmpds[] = {
+ [SM6375_VDDCX] = &cx_rwcx0_lvl,
+ [SM6375_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [SM6375_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [SM6375_VDDMX] = &mx_rwmx0_lvl,
+ [SM6375_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [SM6375_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [SM6375_VDDGX] = &gx_rwgx0_lvl,
+ [SM6375_VDDGX_AO] = &gx_rwgx0_lvl_ao,
+ [SM6375_VDD_LPI_CX] = &lpi_cx_rwlc0_lvl,
+ [SM6375_VDD_LPI_MX] = &lpi_mx_rwlm0_lvl,
+};
+
+static const struct rpmpd_desc sm6375_desc = {
+ .rpmpds = sm6375_rpmpds,
+ .num_pds = ARRAY_SIZE(sm6375_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO_NO_CPR,
+};
+
+static struct rpmpd *qcm2290_rpmpds[] = {
+ [QCM2290_VDDCX] = &cx_rwcx0_lvl,
+ [QCM2290_VDDCX_AO] = &cx_rwcx0_lvl_ao,
+ [QCM2290_VDDCX_VFL] = &cx_rwcx0_vfl,
+ [QCM2290_VDDMX] = &mx_rwmx0_lvl,
+ [QCM2290_VDDMX_AO] = &mx_rwmx0_lvl_ao,
+ [QCM2290_VDDMX_VFL] = &mx_rwmx0_vfl,
+ [QCM2290_VDD_LPI_CX] = &lpi_cx_rwlc0_lvl,
+ [QCM2290_VDD_LPI_MX] = &lpi_mx_rwlm0_lvl,
+};
+
+static const struct rpmpd_desc qcm2290_desc = {
+ .rpmpds = qcm2290_rpmpds,
+ .num_pds = ARRAY_SIZE(qcm2290_rpmpds),
+ .max_state = RPM_SMD_LEVEL_TURBO_NO_CPR,
+};
+
+static const struct of_device_id rpmpd_match_table[] = {
+ { .compatible = "qcom,mdm9607-rpmpd", .data = &mdm9607_desc },
+ { .compatible = "qcom,msm8226-rpmpd", .data = &msm8226_desc },
+ { .compatible = "qcom,msm8909-rpmpd", .data = &msm8916_desc },
+ { .compatible = "qcom,msm8916-rpmpd", .data = &msm8916_desc },
+ { .compatible = "qcom,msm8939-rpmpd", .data = &msm8939_desc },
+ { .compatible = "qcom,msm8953-rpmpd", .data = &msm8953_desc },
+ { .compatible = "qcom,msm8976-rpmpd", .data = &msm8976_desc },
+ { .compatible = "qcom,msm8994-rpmpd", .data = &msm8994_desc },
+ { .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc },
+ { .compatible = "qcom,msm8998-rpmpd", .data = &msm8998_desc },
+ { .compatible = "qcom,qcm2290-rpmpd", .data = &qcm2290_desc },
+ { .compatible = "qcom,qcs404-rpmpd", .data = &qcs404_desc },
+ { .compatible = "qcom,sdm660-rpmpd", .data = &sdm660_desc },
+ { .compatible = "qcom,sm6115-rpmpd", .data = &sm6115_desc },
+ { .compatible = "qcom,sm6125-rpmpd", .data = &sm6125_desc },
+ { .compatible = "qcom,sm6375-rpmpd", .data = &sm6375_desc },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rpmpd_match_table);
+
+static int rpmpd_send_enable(struct rpmpd *pd, bool enable)
+{
+ struct rpmpd_req req = {
+ .key = KEY_ENABLE,
+ .nbytes = cpu_to_le32(sizeof(u32)),
+ .value = cpu_to_le32(enable),
+ };
+
+ return qcom_rpm_smd_write(pd->rpm, QCOM_SMD_RPM_ACTIVE_STATE,
+ pd->res_type, pd->res_id, &req, sizeof(req));
+}
+
+static int rpmpd_send_corner(struct rpmpd *pd, int state, unsigned int corner)
+{
+ struct rpmpd_req req = {
+ .key = pd->key,
+ .nbytes = cpu_to_le32(sizeof(u32)),
+ .value = cpu_to_le32(corner),
+ };
+
+ return qcom_rpm_smd_write(pd->rpm, state, pd->res_type, pd->res_id,
+ &req, sizeof(req));
+};
+
+static void to_active_sleep(struct rpmpd *pd, unsigned int corner,
+ unsigned int *active, unsigned int *sleep)
+{
+ *active = corner;
+
+ if (pd->active_only)
+ *sleep = 0;
+ else
+ *sleep = *active;
+}
+
+static int rpmpd_aggregate_corner(struct rpmpd *pd)
+{
+ int ret;
+ struct rpmpd *peer = pd->peer;
+ unsigned int active_corner, sleep_corner;
+ unsigned int this_active_corner = 0, this_sleep_corner = 0;
+ unsigned int peer_active_corner = 0, peer_sleep_corner = 0;
+
+ /* Clamp to the highest corner/level if sync_state isn't done yet */
+ if (!pd->state_synced)
+ this_active_corner = this_sleep_corner = pd->max_state - 1;
+ else
+ to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner);
+
+ if (peer && peer->enabled)
+ to_active_sleep(peer, peer->corner, &peer_active_corner,
+ &peer_sleep_corner);
+
+ active_corner = max(this_active_corner, peer_active_corner);
+
+ ret = rpmpd_send_corner(pd, QCOM_SMD_RPM_ACTIVE_STATE, active_corner);
+ if (ret)
+ return ret;
+
+ sleep_corner = max(this_sleep_corner, peer_sleep_corner);
+
+ return rpmpd_send_corner(pd, QCOM_SMD_RPM_SLEEP_STATE, sleep_corner);
+}
+
+static int rpmpd_power_on(struct generic_pm_domain *domain)
+{
+ int ret;
+ struct rpmpd *pd = domain_to_rpmpd(domain);
+
+ mutex_lock(&rpmpd_lock);
+
+ ret = rpmpd_send_enable(pd, true);
+ if (ret)
+ goto out;
+
+ pd->enabled = true;
+
+ if (pd->corner)
+ ret = rpmpd_aggregate_corner(pd);
+
+out:
+ mutex_unlock(&rpmpd_lock);
+
+ return ret;
+}
+
+static int rpmpd_power_off(struct generic_pm_domain *domain)
+{
+ int ret;
+ struct rpmpd *pd = domain_to_rpmpd(domain);
+
+ mutex_lock(&rpmpd_lock);
+
+ ret = rpmpd_send_enable(pd, false);
+ if (!ret)
+ pd->enabled = false;
+
+ mutex_unlock(&rpmpd_lock);
+
+ return ret;
+}
+
+static int rpmpd_set_performance(struct generic_pm_domain *domain,
+ unsigned int state)
+{
+ int ret = 0;
+ struct rpmpd *pd = domain_to_rpmpd(domain);
+
+ if (state > pd->max_state)
+ state = pd->max_state;
+
+ mutex_lock(&rpmpd_lock);
+
+ pd->corner = state;
+
+ /* Always send updates for vfc and vfl */
+ if (!pd->enabled && pd->key != cpu_to_le32(KEY_FLOOR_CORNER) &&
+ pd->key != cpu_to_le32(KEY_FLOOR_LEVEL))
+ goto out;
+
+ ret = rpmpd_aggregate_corner(pd);
+
+out:
+ mutex_unlock(&rpmpd_lock);
+
+ return ret;
+}
+
+static unsigned int rpmpd_get_performance(struct generic_pm_domain *genpd,
+ struct dev_pm_opp *opp)
+{
+ return dev_pm_opp_get_level(opp);
+}
+
+static int rpmpd_probe(struct platform_device *pdev)
+{
+ int i;
+ size_t num;
+ struct genpd_onecell_data *data;
+ struct qcom_smd_rpm *rpm;
+ struct rpmpd **rpmpds;
+ const struct rpmpd_desc *desc;
+
+ rpm = dev_get_drvdata(pdev->dev.parent);
+ if (!rpm) {
+ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n");
+ return -ENODEV;
+ }
+
+ desc = of_device_get_match_data(&pdev->dev);
+ if (!desc)
+ return -EINVAL;
+
+ rpmpds = desc->rpmpds;
+ num = desc->num_pds;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->domains = devm_kcalloc(&pdev->dev, num, sizeof(*data->domains),
+ GFP_KERNEL);
+ if (!data->domains)
+ return -ENOMEM;
+
+ data->num_domains = num;
+
+ for (i = 0; i < num; i++) {
+ if (!rpmpds[i]) {
+ dev_warn(&pdev->dev, "rpmpds[] with empty entry at index=%d\n",
+ i);
+ continue;
+ }
+
+ rpmpds[i]->rpm = rpm;
+ rpmpds[i]->max_state = desc->max_state;
+ rpmpds[i]->pd.power_off = rpmpd_power_off;
+ rpmpds[i]->pd.power_on = rpmpd_power_on;
+ rpmpds[i]->pd.set_performance_state = rpmpd_set_performance;
+ rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance;
+ pm_genpd_init(&rpmpds[i]->pd, NULL, true);
+
+ data->domains[i] = &rpmpds[i]->pd;
+ }
+
+ /* Add subdomains */
+ for (i = 0; i < num; i++) {
+ if (!rpmpds[i])
+ continue;
+
+ if (rpmpds[i]->parent)
+ pm_genpd_add_subdomain(rpmpds[i]->parent, &rpmpds[i]->pd);
+ }
+
+ return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
+}
+
+static void rpmpd_sync_state(struct device *dev)
+{
+ const struct rpmpd_desc *desc = of_device_get_match_data(dev);
+ struct rpmpd **rpmpds = desc->rpmpds;
+ struct rpmpd *pd;
+ unsigned int i;
+ int ret;
+
+ mutex_lock(&rpmpd_lock);
+ for (i = 0; i < desc->num_pds; i++) {
+ pd = rpmpds[i];
+ if (!pd)
+ continue;
+
+ pd->state_synced = true;
+
+ if (!pd->enabled)
+ pd->corner = 0;
+
+ ret = rpmpd_aggregate_corner(pd);
+ if (ret)
+ dev_err(dev, "failed to sync %s: %d\n", pd->pd.name, ret);
+ }
+ mutex_unlock(&rpmpd_lock);
+}
+
+static struct platform_driver rpmpd_driver = {
+ .driver = {
+ .name = "qcom-rpmpd",
+ .of_match_table = rpmpd_match_table,
+ .suppress_bind_attrs = true,
+ .sync_state = rpmpd_sync_state,
+ },
+ .probe = rpmpd_probe,
+};
+
+static int __init rpmpd_init(void)
+{
+ return platform_driver_register(&rpmpd_driver);
+}
+core_initcall(rpmpd_init);
+
+MODULE_DESCRIPTION("Qualcomm Technologies, Inc. RPM Power Domain Driver");
+MODULE_LICENSE("GPL v2");