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PM / devfreq: bw_hwmon: Add support for configuring byte MID match

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Add support to configure the byte MID match value from DT.

Change-Id: I5848aef98f15c6de9fe0fae0a1188a17810a5ef5
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[avajid@codeaurora.org: made minor styling changes]
Signed-off-by: Amir Vajid <avajid@codeaurora.org>
This commit is contained in:
Stephen Boyd 2019-01-16 20:19:21 -08:00 • committed by Amir Vajid
commit d6ee9c7aa6
1 changed files with 29 additions and 0 deletions
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29
drivers/devfreq/bimc-bwmon.c
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@ -56,6 +56,8 @@
#define MON3_INT_STATUS_MASK 0x0F
#define MON3_EN(m) ((m)->base + 0x10)
#define MON3_CLEAR(m) ((m)->base + 0x14)
#define MON3_MASK(m) ((m)->base + 0x18)
#define MON3_MATCH(m) ((m)->base + 0x1C)
#define MON3_SW(m) ((m)->base + 0x20)
#define MON3_THRES_HI(m) ((m)->base + 0x24)
#define MON3_THRES_MED(m) ((m)->base + 0x28)
@ -94,6 +96,8 @@ struct bwmon {
u32 throttle_adj;
u32 sample_size_ms;
u32 intr_status;
u32 byte_mask;
u32 byte_match;
};
#define to_bwmon(ptr) container_of(ptr, struct bwmon, hw)
@ -723,6 +727,25 @@ static irqreturn_t bwmon_intr_thread(int irq, void *dev)
return IRQ_HANDLED;
}
static __always_inline
void mon_set_byte_count_filter(struct bwmon *m, enum mon_reg_type type)
{
if (!m->byte_mask)
return;
switch (type) {
case MON1:
case MON2:
writel_relaxed(m->byte_mask, MON_MASK(m));
writel_relaxed(m->byte_match, MON_MATCH(m));
break;
case MON3:
writel_relaxed(m->byte_mask, MON3_MASK(m));
writel_relaxed(m->byte_match, MON3_MATCH(m));
break;
}
}
static __always_inline int __start_bw_hwmon(struct bw_hwmon *hw,
unsigned long mbps, enum mon_reg_type type)
{
@ -774,6 +797,7 @@ static __always_inline int __start_bw_hwmon(struct bw_hwmon *hw,
writel_relaxed(zone_actions, MON3_ZONE_ACTIONS(m));
}
mon_set_byte_count_filter(m, type);
mon_irq_clear(m, type);
mon_irq_enable(m, type);
mon_enable(m, type);
@ -1052,6 +1076,11 @@ static int bimc_bwmon_driver_probe(struct platform_device *pdev)
break;
}
of_property_read_u32(dev->of_node, "qcom,byte-mid-match",
&m->byte_match);
of_property_read_u32(dev->of_node, "qcom,byte-mid-mask",
&m->byte_mask);
if (m->spec->throt_adj) {
m->hw.set_throttle_adj = mon_set_throttle_adj;
m->hw.get_throttle_adj = mon_get_throttle_adj;