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drm/radeon/kms: expose thermal/fan i2c buses

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Look up i2c bus in the power table and expose it.
You'll need to load a hwmon driver for any chips
on the bus, this patch just exposes the bus.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
This commit is contained in:
Alex Deucher 2010-03-11 10:01:17 -05:00 committed by Dave Airlie
parent 2b497502b7
commit 29fb52ca78
13 changed files with 69 additions and 0 deletions
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1
drivers/gpu/drm/radeon/evergreen.c
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@ -747,6 +747,7 @@ int evergreen_init(struct radeon_device *rdev)
void evergreen_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
evergreen_suspend(rdev);
#if 0
r600_blit_fini(rdev);

1
drivers/gpu/drm/radeon/r100.c
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@ -3443,6 +3443,7 @@ int r100_suspend(struct radeon_device *rdev)
void r100_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/r300.c
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@ -1335,6 +1335,7 @@ int r300_suspend(struct radeon_device *rdev)
void r300_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/r420.c
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@ -267,6 +267,7 @@ int r420_suspend(struct radeon_device *rdev)
void r420_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/r600.c
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@ -2120,6 +2120,7 @@ int r600_init(struct radeon_device *rdev)
void r600_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r600_audio_fini(rdev);
r600_blit_fini(rdev);
r600_cp_fini(rdev);

2
drivers/gpu/drm/radeon/radeon.h
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@ -168,6 +168,7 @@ struct radeon_clock {
* Power management
*/
int radeon_pm_init(struct radeon_device *rdev);
void radeon_pm_fini(struct radeon_device *rdev);
void radeon_pm_compute_clocks(struct radeon_device *rdev);
void radeon_combios_get_power_modes(struct radeon_device *rdev);
void radeon_atombios_get_power_modes(struct radeon_device *rdev);
@ -708,6 +709,7 @@ struct radeon_pm {
struct radeon_power_state *requested_power_state;
struct radeon_pm_clock_info *requested_clock_mode;
struct radeon_power_state *default_power_state;
struct radeon_i2c_chan *i2c_bus;
};

51
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -1461,6 +1461,30 @@ radeon_atombios_get_tv_dac_info(struct radeon_encoder *encoder)
return tv_dac;
}
static const char *thermal_controller_names[] = {
"NONE",
"LM63",
"ADM1032",
"ADM1030",
"MUA6649",
"LM64",
"F75375",
"ASC7512",
};
static const char *pp_lib_thermal_controller_names[] = {
"NONE",
"LM63",
"ADM1032",
"ADM1030",
"MUA6649",
"LM64",
"F75375",
"RV6xx",
"RV770",
"ADT7473",
};
union power_info {
struct _ATOM_POWERPLAY_INFO info;
struct _ATOM_POWERPLAY_INFO_V2 info_2;
@ -1480,6 +1504,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
struct _ATOM_PPLIB_STATE *power_state;
int num_modes = 0, i, j;
int state_index = 0, mode_index = 0;
struct radeon_i2c_bus_rec i2c_bus;
atom_parse_data_header(mode_info->atom_context, index, NULL, &frev, &crev, &data_offset);
@ -1489,6 +1514,14 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
if (power_info) {
if (frev < 4) {
/* add the i2c bus for thermal/fan chip */
if (power_info->info.ucOverdriveThermalController > 0) {
DRM_INFO("Possible %s thermal controller at 0x%02x\n",
thermal_controller_names[power_info->info.ucOverdriveThermalController],
power_info->info.ucOverdriveControllerAddress >> 1);
i2c_bus = radeon_lookup_i2c_gpio(rdev, power_info->info.ucOverdriveI2cLine);
rdev->pm.i2c_bus = radeon_i2c_create(rdev->ddev, &i2c_bus, "Thermal");
}
num_modes = power_info->info.ucNumOfPowerModeEntries;
if (num_modes > ATOM_MAX_NUMBEROF_POWER_BLOCK)
num_modes = ATOM_MAX_NUMBEROF_POWER_BLOCK;
@ -1698,6 +1731,24 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
}
}
} else if (frev == 4) {
/* add the i2c bus for thermal/fan chip */
/* no support for internal controller yet */
if (power_info->info_4.sThermalController.ucType > 0) {
if ((power_info->info_4.sThermalController.ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) &&
(power_info->info_4.sThermalController.ucType == ATOM_PP_THERMALCONTROLLER_RV770)) {
DRM_INFO("Internal thermal controller %s fan control\n",
(power_info->info_4.sThermalController.ucFanParameters &
ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
} else {
DRM_INFO("Possible %s thermal controller at 0x%02x %s fan control\n",
pp_lib_thermal_controller_names[power_info->info_4.sThermalController.ucType],
power_info->info_4.sThermalController.ucI2cAddress >> 1,
(power_info->info_4.sThermalController.ucFanParameters &
ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
i2c_bus = radeon_lookup_i2c_gpio(rdev, power_info->info_4.sThermalController.ucI2cLine);
rdev->pm.i2c_bus = radeon_i2c_create(rdev->ddev, &i2c_bus, "Thermal");
}
}
for (i = 0; i < power_info->info_4.ucNumStates; i++) {
mode_index = 0;
power_state = (struct _ATOM_PPLIB_STATE *)

6
drivers/gpu/drm/radeon/radeon_pm.c
View File

@ -257,6 +257,12 @@ int radeon_pm_init(struct radeon_device *rdev)
return 0;
}
void radeon_pm_fini(struct radeon_device *rdev)
{
if (rdev->pm.i2c_bus)
radeon_i2c_destroy(rdev->pm.i2c_bus);
}
void radeon_pm_compute_clocks(struct radeon_device *rdev)
{
struct drm_device *ddev = rdev->ddev;

1
drivers/gpu/drm/radeon/rs400.c
View File

@ -454,6 +454,7 @@ int rs400_suspend(struct radeon_device *rdev)
void rs400_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/rs600.c
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@ -601,6 +601,7 @@ int rs600_suspend(struct radeon_device *rdev)
void rs600_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/rs690.c
View File

@ -658,6 +658,7 @@ int rs690_suspend(struct radeon_device *rdev)
void rs690_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/rv515.c
View File

@ -540,6 +540,7 @@ void rv515_set_safe_registers(struct radeon_device *rdev)
void rv515_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);

1
drivers/gpu/drm/radeon/rv770.c
View File

@ -1165,6 +1165,7 @@ int rv770_init(struct radeon_device *rdev)
void rv770_fini(struct radeon_device *rdev)
{
radeon_pm_fini(rdev);
r600_blit_fini(rdev);
r600_cp_fini(rdev);
r600_wb_fini(rdev);