diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_legacy_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 91 |
1 files changed, 52 insertions, 39 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 670e9910f86..a13ad9d707c 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -23,9 +23,9 @@ * Authors: Dave Airlie * Alex Deucher */ -#include "drmP.h" -#include "drm_crtc_helper.h" -#include "radeon_drm.h" +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/radeon_drm.h> #include "radeon.h" #include "atom.h" #include <linux/backlight.h> @@ -269,14 +269,48 @@ static const struct drm_encoder_helper_funcs radeon_legacy_lvds_helper_funcs = { .disable = radeon_legacy_encoder_disable, }; -#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) +u8 +radeon_legacy_get_backlight_level(struct radeon_encoder *radeon_encoder) +{ + struct drm_device *dev = radeon_encoder->base.dev; + struct radeon_device *rdev = dev->dev_private; + u8 backlight_level; -#define MAX_RADEON_LEVEL 0xFF + backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >> + RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff; -struct radeon_backlight_privdata { - struct radeon_encoder *encoder; - uint8_t negative; -}; + return backlight_level; +} + +void +radeon_legacy_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level) +{ + struct drm_device *dev = radeon_encoder->base.dev; + struct radeon_device *rdev = dev->dev_private; + int dpms_mode = DRM_MODE_DPMS_ON; + + if (radeon_encoder->enc_priv) { + if (rdev->is_atom_bios) { + struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv; + if (lvds->backlight_level > 0) + dpms_mode = lvds->dpms_mode; + else + dpms_mode = DRM_MODE_DPMS_OFF; + lvds->backlight_level = level; + } else { + struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv; + if (lvds->backlight_level > 0) + dpms_mode = lvds->dpms_mode; + else + dpms_mode = DRM_MODE_DPMS_OFF; + lvds->backlight_level = level; + } + } + + radeon_legacy_lvds_update(&radeon_encoder->base, dpms_mode); +} + +#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd) { @@ -286,13 +320,13 @@ static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd) /* Convert brightness to hardware level */ if (bd->props.brightness < 0) level = 0; - else if (bd->props.brightness > MAX_RADEON_LEVEL) - level = MAX_RADEON_LEVEL; + else if (bd->props.brightness > RADEON_MAX_BL_LEVEL) + level = RADEON_MAX_BL_LEVEL; else level = bd->props.brightness; if (pdata->negative) - level = MAX_RADEON_LEVEL - level; + level = RADEON_MAX_BL_LEVEL - level; return level; } @@ -301,26 +335,9 @@ static int radeon_legacy_backlight_update_status(struct backlight_device *bd) { struct radeon_backlight_privdata *pdata = bl_get_data(bd); struct radeon_encoder *radeon_encoder = pdata->encoder; - struct drm_device *dev = radeon_encoder->base.dev; - struct radeon_device *rdev = dev->dev_private; - int dpms_mode = DRM_MODE_DPMS_ON; - if (radeon_encoder->enc_priv) { - if (rdev->is_atom_bios) { - struct radeon_encoder_atom_dig *lvds = radeon_encoder->enc_priv; - dpms_mode = lvds->dpms_mode; - lvds->backlight_level = radeon_legacy_lvds_level(bd); - } else { - struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv; - dpms_mode = lvds->dpms_mode; - lvds->backlight_level = radeon_legacy_lvds_level(bd); - } - } - - if (bd->props.brightness > 0) - radeon_legacy_lvds_update(&radeon_encoder->base, dpms_mode); - else - radeon_legacy_lvds_update(&radeon_encoder->base, DRM_MODE_DPMS_OFF); + radeon_legacy_set_backlight_level(radeon_encoder, + radeon_legacy_lvds_level(bd)); return 0; } @@ -336,7 +353,7 @@ static int radeon_legacy_backlight_get_brightness(struct backlight_device *bd) backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >> RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff; - return pdata->negative ? MAX_RADEON_LEVEL - backlight_level : backlight_level; + return pdata->negative ? RADEON_MAX_BL_LEVEL - backlight_level : backlight_level; } static const struct backlight_ops radeon_backlight_ops = { @@ -370,7 +387,7 @@ void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, } memset(&props, 0, sizeof(props)); - props.max_brightness = MAX_RADEON_LEVEL; + props.max_brightness = RADEON_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; bd = backlight_device_register("radeon_bl", &drm_connector->kdev, pdata, &radeon_backlight_ops, &props); @@ -449,7 +466,7 @@ static void radeon_legacy_backlight_exit(struct radeon_encoder *radeon_encoder) } if (bd) { - struct radeon_legacy_backlight_privdata *pdata; + struct radeon_backlight_privdata *pdata; pdata = bl_get_data(bd); backlight_device_unregister(bd); @@ -974,11 +991,7 @@ static void radeon_legacy_tmds_ext_mode_set(struct drm_encoder *encoder, static void radeon_ext_tmds_enc_destroy(struct drm_encoder *encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); - struct radeon_encoder_ext_tmds *tmds = radeon_encoder->enc_priv; - if (tmds) { - if (tmds->i2c_bus) - radeon_i2c_destroy(tmds->i2c_bus); - } + /* don't destroy the i2c bus record here, this will be done in radeon_i2c_fini */ kfree(radeon_encoder->enc_priv); drm_encoder_cleanup(encoder); kfree(radeon_encoder); |