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drm/radeon/kms/atom/pm: rework power mode parsing

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On pre-r6xx, the power mode array is usually ordered:
low
...
high
default

On r6xx+:
default
low
...
high

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-04-22 13:25:06 -04:00 committed by Dave Airlie
parent ef6e6cf56a
commit 02b17cc053
1 changed files with 19 additions and 4 deletions
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23
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -1506,6 +1506,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
num_modes = power_info->info.ucNumOfPowerModeEntries;
if (num_modes > ATOM_MAX_NUMBEROF_POWER_BLOCK)
num_modes = ATOM_MAX_NUMBEROF_POWER_BLOCK;
/* last mode is usually default, array is low to high */
for (i = 0; i < num_modes; i++) {
rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
switch (frev) {
@ -1711,6 +1712,14 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
break;
}
}
/* last mode is usually default */
if (!rdev->pm.default_power_state) {
rdev->pm.power_state[state_index - 1].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[state_index - 1];
rdev->pm.power_state[state_index - 1].default_clock_mode =
&rdev->pm.power_state[state_index - 1].clock_info[0];
}
} else {
/* add the i2c bus for thermal/fan chip */
/* no support for internal controller yet */
@ -1736,6 +1745,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.i2c_bus = radeon_i2c_create(rdev->ddev, &i2c_bus, "Thermal");
}
}
/* first mode is usually default, followed by low to high */
for (i = 0; i < power_info->info_4.ucNumStates; i++) {
mode_index = 0;
power_state = (struct _ATOM_PPLIB_STATE *)
@ -1865,12 +1875,16 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
state_index++;
}
}
/* first mode is usually default */
if (!rdev->pm.default_power_state) {
rdev->pm.power_state[0].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[0];
rdev->pm.power_state[0].default_clock_mode =
&rdev->pm.power_state[0].clock_info[0];
}
}
} else {
/* XXX figure out some good default low power mode for cards w/out power tables */
}
if (rdev->pm.default_power_state == NULL) {
/* add the default mode */
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
@ -1887,6 +1901,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
state_index++;
}
rdev->pm.num_power_states = state_index;
rdev->pm.current_power_state = rdev->pm.default_power_state;