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Revert "drm/radeon: drop btc_get_max_clock_from_voltage_dependency_table"

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This reverts commit fc9dfeb138.

There are still some stability problems on some SI boards so bring
this back.
This commit is contained in:
Alex Deucher 2014-10-13 11:34:13 -04:00
parent dfda0df342
commit 60779143b5
2 changed files with 19 additions and 0 deletions
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17
drivers/gpu/drm/radeon/btc_dpm.c
View File

@ -1170,6 +1170,23 @@ static const struct radeon_blacklist_clocks btc_blacklist_clocks[] =
{ 25000, 30000, RADEON_SCLK_UP }
};
void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
u32 *max_clock)
{
u32 i, clock = 0;
if ((table == NULL) || (table->count == 0)) {
*max_clock = clock;
return;
}
for (i = 0; i < table->count; i++) {
if (clock < table->entries[i].clk)
clock = table->entries[i].clk;
}
*max_clock = clock;
}
void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
u32 clock, u16 max_voltage, u16 *voltage)
{

2
drivers/gpu/drm/radeon/btc_dpm.h
View File

@ -46,6 +46,8 @@ void btc_adjust_clock_combinations(struct radeon_device *rdev,
struct rv7xx_pl *pl);
void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
u32 clock, u16 max_voltage, u16 *voltage);
void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
u32 *max_clock);
void btc_apply_voltage_delta_rules(struct radeon_device *rdev,
u16 max_vddc, u16 max_vddci,
u16 *vddc, u16 *vddci);