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drm/radeon/dpm: add smc fan control for CI (v2)

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Enable smc fan control for CI boards.  Should
reduce the fan noise on systems with a higher
default fan profile.

v2: disable by default, add additional fan setup, rpm control

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73338

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2014-09-15 00:15:22 -04:00
parent 39471ad39d
commit e03cea367f
8 changed files with 443 additions and 4 deletions
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9
drivers/gpu/drm/radeon/r600_dpm.c
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@@ -811,6 +811,7 @@ union power_info {
union fan_info {
struct _ATOM_PPLIB_FANTABLE fan;
struct _ATOM_PPLIB_FANTABLE2 fan2;
struct _ATOM_PPLIB_FANTABLE3 fan3;
};
static int r600_parse_clk_voltage_dep_table(struct radeon_clock_voltage_dependency_table *radeon_table,
@@ -900,6 +901,14 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
else
rdev->pm.dpm.fan.t_max = 10900;
rdev->pm.dpm.fan.cycle_delay = 100000;
if (fan_info->fan.ucFanTableFormat >= 3) {
rdev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode;
rdev->pm.dpm.fan.default_max_fan_pwm =
le16_to_cpu(fan_info->fan3.usFanPWMMax);
rdev->pm.dpm.fan.default_fan_output_sensitivity = 4836;
rdev->pm.dpm.fan.fan_output_sensitivity =
le16_to_cpu(fan_info->fan3.usFanOutputSensitivity);
}
rdev->pm.dpm.fan.ucode_fan_control = true;
}
}