drm/amd/pp: Print out voltage/clock range in sysfs

when user cat pp_od_clk_voltage
add display info about the sclk/mclk/vddc range that user can overdrive
output as:
OD_SCLK:
0:        300MHz        900mV
1:        400MHz        912mV
2:        500MHz        925mV
3:        600MHz        937mV
4:        700MHz        950mV
5:        800MHz        975mV
6:        900MHz        987mV
7:       1000MHz       1000mV
OD_MCLK:
0:        300MHz        900mV
1:       1500MHz        912mV
OD_RANGE:
SCLK:     300MHz       1200MHz
MCLK:     300MHz       1500MHz
VDDC:     700mV        1200mV

also
1. remove unnecessary whitespace before a quoted newline
2. change unit of frequency Mhz to MHz

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index ce8be467608d..27d8dd77860d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -555,6 +555,7 @@ static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
         if (adev->powerplay.pp_funcs->print_clock_levels) {
                 size = amdgpu_dpm_print_clock_levels(adev, OD_SCLK, buf);
                 size += amdgpu_dpm_print_clock_levels(adev, OD_MCLK, buf+size);
+                size += amdgpu_dpm_print_clock_levels(adev, OD_RANGE, buf+size);
                 return size;
         } else {
                 return snprintf(buf, PAGE_SIZE, "\n");