drm/radeon/kms: add support for thermal chips on combios asics
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
parent
cb3c438ea4
commit
63f7d9828b
|
@ -2504,6 +2504,12 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev)
|
|||
return true;
|
||||
}
|
||||
|
||||
static const char *thermal_controller_names[] = {
|
||||
"NONE",
|
||||
"lm63",
|
||||
"adm1032",
|
||||
};
|
||||
|
||||
void radeon_combios_get_power_modes(struct radeon_device *rdev)
|
||||
{
|
||||
struct drm_device *dev = rdev->ddev;
|
||||
|
@ -2524,6 +2530,54 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
|
|||
return;
|
||||
}
|
||||
|
||||
/* check for a thermal chip */
|
||||
offset = combios_get_table_offset(dev, COMBIOS_OVERDRIVE_INFO_TABLE);
|
||||
if (offset) {
|
||||
u8 thermal_controller = 0, gpio = 0, i2c_addr = 0, clk_bit = 0, data_bit = 0;
|
||||
struct radeon_i2c_bus_rec i2c_bus;
|
||||
|
||||
rev = RBIOS8(offset);
|
||||
|
||||
if (rev == 0) {
|
||||
thermal_controller = RBIOS8(offset + 3);
|
||||
gpio = RBIOS8(offset + 4) & 0x3f;
|
||||
i2c_addr = RBIOS8(offset + 5);
|
||||
} else if (rev == 1) {
|
||||
thermal_controller = RBIOS8(offset + 4);
|
||||
gpio = RBIOS8(offset + 5) & 0x3f;
|
||||
i2c_addr = RBIOS8(offset + 6);
|
||||
} else if (rev == 2) {
|
||||
thermal_controller = RBIOS8(offset + 4);
|
||||
gpio = RBIOS8(offset + 5) & 0x3f;
|
||||
i2c_addr = RBIOS8(offset + 6);
|
||||
clk_bit = RBIOS8(offset + 0xa);
|
||||
data_bit = RBIOS8(offset + 0xb);
|
||||
}
|
||||
if ((thermal_controller > 0) && (thermal_controller < 3)) {
|
||||
DRM_INFO("Possible %s thermal controller at 0x%02x\n",
|
||||
thermal_controller_names[thermal_controller],
|
||||
i2c_addr >> 1);
|
||||
if (gpio == DDC_LCD) {
|
||||
/* MM i2c */
|
||||
i2c_bus.valid = true;
|
||||
i2c_bus.hw_capable = true;
|
||||
i2c_bus.mm_i2c = true;
|
||||
i2c_bus.i2c_id = 0xa0;
|
||||
} else if (gpio == DDC_GPIO)
|
||||
i2c_bus = combios_setup_i2c_bus(rdev, gpio, 1 << clk_bit, 1 << data_bit);
|
||||
else
|
||||
i2c_bus = combios_setup_i2c_bus(rdev, gpio, 0, 0);
|
||||
rdev->pm.i2c_bus = radeon_i2c_lookup(rdev, &i2c_bus);
|
||||
if (rdev->pm.i2c_bus) {
|
||||
struct i2c_board_info info = { };
|
||||
const char *name = thermal_controller_names[thermal_controller];
|
||||
info.addr = i2c_addr >> 1;
|
||||
strlcpy(info.type, name, sizeof(info.type));
|
||||
i2c_new_device(&rdev->pm.i2c_bus->adapter, &info);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (rdev->flags & RADEON_IS_MOBILITY) {
|
||||
offset = combios_get_table_offset(dev, COMBIOS_POWERPLAY_INFO_TABLE);
|
||||
if (offset) {
|
||||
|
|
Loading…
Reference in a new issue