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path: root/drivers/soc/qcom/rpmhpd.c
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Diffstat (limited to 'drivers/soc/qcom/rpmhpd.c')
-rw-r--r--drivers/soc/qcom/rpmhpd.c36
1 files changed, 31 insertions, 5 deletions
diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index fa209b479ab3..1118345d8824 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -30,6 +30,7 @@
* @active_only: True if it represents an Active only peer
* @corner: current corner
* @active_corner: current active corner
+ * @enable_corner: lowest non-zero corner
* @level: An array of level (vlvl) to corner (hlvl) mappings
* derived from cmd-db
* @level_count: Number of levels supported by the power domain. max
@@ -47,6 +48,7 @@ struct rpmhpd {
const bool active_only;
unsigned int corner;
unsigned int active_corner;
+ unsigned int enable_corner;
u32 level[RPMH_ARC_MAX_LEVELS];
size_t level_count;
bool enabled;
@@ -147,6 +149,21 @@ static const struct rpmhpd_desc sdx55_desc = {
.num_pds = ARRAY_SIZE(sdx55_rpmhpds),
};
+/* SM6350 RPMH powerdomains */
+static struct rpmhpd *sm6350_rpmhpds[] = {
+ [SM6350_CX] = &sdm845_cx,
+ [SM6350_GFX] = &sdm845_gfx,
+ [SM6350_LCX] = &sdm845_lcx,
+ [SM6350_LMX] = &sdm845_lmx,
+ [SM6350_MSS] = &sdm845_mss,
+ [SM6350_MX] = &sdm845_mx,
+};
+
+static const struct rpmhpd_desc sm6350_desc = {
+ .rpmhpds = sm6350_rpmhpds,
+ .num_pds = ARRAY_SIZE(sm6350_rpmhpds),
+};
+
/* SM8150 RPMH powerdomains */
static struct rpmhpd sm8150_mmcx_ao;
@@ -204,7 +221,7 @@ static const struct rpmhpd_desc sm8250_desc = {
static struct rpmhpd sm8350_mxc_ao;
static struct rpmhpd sm8350_mxc = {
.pd = { .name = "mxc", },
- .peer = &sm8150_mmcx_ao,
+ .peer = &sm8350_mxc_ao,
.res_name = "mxc.lvl",
};
@@ -297,6 +314,7 @@ static const struct of_device_id rpmhpd_match_table[] = {
{ .compatible = "qcom,sc8180x-rpmhpd", .data = &sc8180x_desc },
{ .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc },
{ .compatible = "qcom,sdx55-rpmhpd", .data = &sdx55_desc},
+ { .compatible = "qcom,sm6350-rpmhpd", .data = &sm6350_desc },
{ .compatible = "qcom,sm8150-rpmhpd", .data = &sm8150_desc },
{ .compatible = "qcom,sm8250-rpmhpd", .data = &sm8250_desc },
{ .compatible = "qcom,sm8350-rpmhpd", .data = &sm8350_desc },
@@ -385,13 +403,13 @@ static int rpmhpd_aggregate_corner(struct rpmhpd *pd, unsigned int corner)
static int rpmhpd_power_on(struct generic_pm_domain *domain)
{
struct rpmhpd *pd = domain_to_rpmhpd(domain);
- int ret = 0;
+ unsigned int corner;
+ int ret;
mutex_lock(&rpmhpd_lock);
- if (pd->corner)
- ret = rpmhpd_aggregate_corner(pd, pd->corner);
-
+ corner = max(pd->corner, pd->enable_corner);
+ ret = rpmhpd_aggregate_corner(pd, corner);
if (!ret)
pd->enabled = true;
@@ -436,6 +454,10 @@ static int rpmhpd_set_performance_state(struct generic_pm_domain *domain,
i--;
if (pd->enabled) {
+ /* Ensure that the domain isn't turn off */
+ if (i < pd->enable_corner)
+ i = pd->enable_corner;
+
ret = rpmhpd_aggregate_corner(pd, i);
if (ret)
goto out;
@@ -472,6 +494,10 @@ static int rpmhpd_update_level_mapping(struct rpmhpd *rpmhpd)
for (i = 0; i < rpmhpd->level_count; i++) {
rpmhpd->level[i] = buf[i];
+ /* Remember the first corner with non-zero level */
+ if (!rpmhpd->level[rpmhpd->enable_corner] && rpmhpd->level[i])
+ rpmhpd->enable_corner = i;
+
/*
* The AUX data may be zero padded. These 0 valued entries at
* the end of the map must be ignored.