[PATCH 20/30] drm/amd/powerplay: support real-time clock retrieval on arcturus

[Alex Deucher]

From: Evan Quan <evan.q...@amd.com>

Enable arcturus real-time clock retrieval.

Signed-off-by: Evan Quan <evan.q...@amd.com>
Reviewed-by: Kevin Wang <kevin1.w...@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 24 ++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c 
b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 1dbb917fb916..3a702110d9bc 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -994,6 +994,29 @@ static int arcturus_read_sensor(struct smu_context *smu,
        return ret;
 }
 
+static int arcturus_get_current_clk_freq_by_table(struct smu_context *smu,
+                                      enum smu_clk_type clk_type,
+                                      uint32_t *value)
+{
+       static SmuMetrics_t metrics;
+       int ret = 0, clk_id = 0;
+
+       if (!value)
+               return -EINVAL;
+
+       clk_id = smu_clk_get_index(smu, clk_type);
+       if (clk_id < 0)
+               return -EINVAL;
+
+       ret = arcturus_get_metrics_table(smu, &metrics);
+       if (ret)
+               return ret;
+
+       *value = metrics.CurrClock[clk_id];
+
+       return ret;
+}
+
 static void arcturus_dump_pptable(struct smu_context *smu)
 {
        struct smu_table_context *table_context = &smu->smu_table;
@@ -1448,6 +1471,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
        .set_default_dpm_table = arcturus_set_default_dpm_table,
        .populate_umd_state_clk = arcturus_populate_umd_state_clk,
        .get_thermal_temperature_range = arcturus_get_thermal_temperature_range,
+       .get_current_clk_freq_by_table = arcturus_get_current_clk_freq_by_table,
        .print_clk_levels = arcturus_print_clk_levels,
        .force_clk_levels = arcturus_force_clk_levels,
        .read_sensor = arcturus_read_sensor,
-- 
2.20.1

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