[PATCH 1/2] drm/amd/powerplay: export a function to read fan rpm

[Grazvydas Ignotas <notasas-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Powerplay hwmgr already has an implementation, all we need to do is to call it.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
---
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c     | 18 ++++++++++++++++++
 drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h |  1 +
 2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 0b1f220..1f49764 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -582,6 +582,23 @@ static int pp_dpm_get_fan_speed_percent(void *handle, uint32_t *speed)
 	return hwmgr->hwmgr_func->get_fan_speed_percent(hwmgr, speed);
 }
 
+static int pp_dpm_get_fan_speed_rpm(void *handle, uint32_t *rpm)
+{
+	struct pp_hwmgr *hwmgr;
+
+	if (handle == NULL)
+		return -EINVAL;
+
+	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+
+	PP_CHECK_HW(hwmgr);
+
+	if (hwmgr->hwmgr_func->get_fan_speed_rpm == NULL)
+		return -EINVAL;
+
+	return hwmgr->hwmgr_func->get_fan_speed_rpm(hwmgr, rpm);
+}
+
 static int pp_dpm_get_temperature(void *handle)
 {
 	struct pp_hwmgr  *hwmgr;
@@ -852,6 +869,7 @@ const struct amd_powerplay_funcs pp_dpm_funcs = {
 	.get_fan_control_mode = pp_dpm_get_fan_control_mode,
 	.set_fan_speed_percent = pp_dpm_set_fan_speed_percent,
 	.get_fan_speed_percent = pp_dpm_get_fan_speed_percent,
+	.get_fan_speed_rpm = pp_dpm_get_fan_speed_rpm,
 	.get_pp_num_states = pp_dpm_get_pp_num_states,
 	.get_pp_table = pp_dpm_get_pp_table,
 	.set_pp_table = pp_dpm_set_pp_table,
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
index eb3e83d..2892b4e 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
@@ -349,6 +349,7 @@ struct amd_powerplay_funcs {
 	int (*get_fan_control_mode)(void *handle);
 	int (*set_fan_speed_percent)(void *handle, uint32_t percent);
 	int (*get_fan_speed_percent)(void *handle, uint32_t *speed);
+	int (*get_fan_speed_rpm)(void *handle, uint32_t *rpm);
 	int (*get_pp_num_states)(void *handle, struct pp_states_info *data);
 	int (*get_pp_table)(void *handle, char **table);
 	int (*set_pp_table)(void *handle, const char *buf, size_t size);
-- 
2.7.4

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