drm/radeon/kms: expose thermal/fan i2c buses
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>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 9d6283e..db78d93 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -747,6 +747,7 @@
void evergreen_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
evergreen_suspend(rdev);
#if 0
r600_blit_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index ea5ebfe..9d634c8 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3443,6 +3443,7 @@
void r100_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 1042cea..6d75f81 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1335,6 +1335,7 @@
void r300_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 2ab35ff..0b8603c 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -267,6 +267,7 @@
void r420_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 5b00d5e..5aee7fe 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2120,6 +2120,7 @@
void r600_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r600_audio_fini(rdev);
r600_blit_fini(rdev);
r600_cp_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index bd63f53..46bfff9 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -168,6 +168,7 @@
* 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_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;
};
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index e4540b2..815116e 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1461,6 +1461,30 @@
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 @@
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 @@
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 @@
}
}
} 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 *)
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 4f37b52..6458d52 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -257,6 +257,12 @@
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;
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 1240e7d..850a90c 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -454,6 +454,7 @@
void rs400_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index e3410c9..3630c16 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -601,6 +601,7 @@
void rs600_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index c39cb50..6c92ae3c 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -658,6 +658,7 @@
void rs690_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 26108b4..f85499f 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -540,6 +540,7 @@
void rv515_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r100_cp_fini(rdev);
r100_wb_fini(rdev);
r100_ib_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 1484d06..2f917db 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1165,6 +1165,7 @@
void rv770_fini(struct radeon_device *rdev)
{
+ radeon_pm_fini(rdev);
r600_blit_fini(rdev);
r600_cp_fini(rdev);
r600_wb_fini(rdev);