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drm/radeon: rework the backlight control to be an asic callback

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This cleans up the interface a bit as well.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2012-08-03 11:39:43 -04:00
parent e3a1592085
commit 37e9b6a62f
7 changed files with 84 additions and 33 deletions
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38
drivers/gpu/drm/radeon/radeon_acpi.c
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@@ -364,19 +364,23 @@ int radeon_atif_handler(struct radeon_device *rdev,
DRM_DEBUG_DRIVER("ATIF: %d pending SBIOS requests\n", count);
if (req.pending & ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST) {
struct radeon_encoder *enc = atif->backlight_ctl;
struct radeon_encoder *enc = atif->encoder_for_bl;
if (enc) {
struct radeon_encoder_atom_dig *dig = enc->enc_priv;
dig->backlight_level = req.backlight_level;
DRM_DEBUG_DRIVER("Changing brightness to %d\n",
req.backlight_level);
atombios_set_panel_brightness(enc);
radeon_set_backlight_level(rdev, enc, req.backlight_level);
backlight_force_update(dig->bl_dev,
BACKLIGHT_UPDATE_HOTKEY);
if (rdev->is_atom_bios) {
struct radeon_encoder_atom_dig *dig = enc->enc_priv;
backlight_force_update(dig->bl_dev,
BACKLIGHT_UPDATE_HOTKEY);
} else {
struct radeon_encoder_lvds *dig = enc->enc_priv;
backlight_force_update(dig->bl_dev,
BACKLIGHT_UPDATE_HOTKEY);
}
}
}
/* TODO: check other events */
@@ -577,16 +581,26 @@ int radeon_acpi_init(struct radeon_device *rdev)
list_for_each_entry(tmp, &rdev->ddev->mode_config.encoder_list,
head) {
struct radeon_encoder *enc = to_radeon_encoder(tmp);
struct radeon_encoder_atom_dig *dig = enc->enc_priv;
if ((enc->devices & (ATOM_DEVICE_LCD_SUPPORT)) &&
dig->bl_dev != NULL) {
target = enc;
break;
enc->enc_priv) {
if (rdev->is_atom_bios) {
struct radeon_encoder_atom_dig *dig = enc->enc_priv;
if (dig->bl_dev) {
target = enc;
break;
}
} else {
struct radeon_encoder_lvds *dig = enc->enc_priv;
if (dig->bl_dev) {
target = enc;
break;
}
}
}
}
atif->backlight_ctl = target;
atif->encoder_for_bl = target;
if (!target) {
/* Brightness change notification is enabled, but we
* didn't find a backlight controller, this should