From 02b17cc05372ab58e9638008d0206f1c1ee0cf5c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 22 Apr 2010 13:25:06 -0400 Subject: [PATCH] drm/radeon/kms/atom/pm: rework power mode parsing On pre-r6xx, the power mode array is usually ordered: low ... high default On r6xx+: default low ... high Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_atombios.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 031a96ceb0f5..aa0a973a8af2 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -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; -- 2.30.2