On Fri, Jan 14, 2011 at 2:24 PM, Matthew Garrett <mjg at redhat.com> wrote:
> From: Michel D?nzer <michel at daenzer.net>
>
> Allows e.g. power management daemons to control the backlight level. Inspired
> by the corresponding code in radeonfb.
>
> (Updated to add backlight type and make the connector the parent device - mjg)
>
> Signed-off-by: Michel D?nzer <daenzer at vmware.com>
> Signed-off-by: Matthew Garrett <mjg at redhat.com>
Acked-by: Alex Deucher <alexdeucher at gmail.com>
> Cc: dri-devel at lists.freedesktop.org
> ---
> ?drivers/gpu/drm/radeon/Kconfig ? ? ? ? ? ? ? ? ?| ? ?1 +
> ?drivers/gpu/drm/radeon/radeon_connectors.c ? ? ?| ? 15 ++
> ?drivers/gpu/drm/radeon/radeon_legacy_encoders.c | ?257
> ++++++++++++++++++++++-
> ?drivers/gpu/drm/radeon/radeon_mode.h ? ? ? ? ? ?| ? 10 +
> ?4 files changed, 277 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/Kconfig b/drivers/gpu/drm/radeon/Kconfig
> index 1c02d23..9746fee 100644
> --- a/drivers/gpu/drm/radeon/Kconfig
> +++ b/drivers/gpu/drm/radeon/Kconfig
> @@ -1,6 +1,7 @@
> ?config DRM_RADEON_KMS
> ? ? ? ?bool "Enable modesetting on radeon by default - NEW DRIVER"
> ? ? ? ?depends on DRM_RADEON
> + ? ? ? select BACKLIGHT_CLASS_DEVICE
> ? ? ? ?help
> ? ? ? ? ?Choose this option if you want kernel modesetting enabled by default.
>
> diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
> b/drivers/gpu/drm/radeon/radeon_connectors.c
> index 22b7e3d..e842fb5 100644
> --- a/drivers/gpu/drm/radeon/radeon_connectors.c
> +++ b/drivers/gpu/drm/radeon/radeon_connectors.c
> @@ -40,6 +40,10 @@ radeon_atombios_connected_scratch_regs(struct
> drm_connector *connector,
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? struct drm_encoder *encoder,
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? bool connected);
>
> +extern void
> +radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ?struct drm_connector *drm_connector);
> +
> ?void radeon_connector_hotplug(struct drm_connector *connector)
> ?{
> ? ? ? ?struct drm_device *dev = connector->dev;
> @@ -1517,6 +1521,17 @@ radeon_add_legacy_connector(struct drm_device *dev,
> ? ? ? ? ? ? ? ?connector->polled = DRM_CONNECTOR_POLL_HPD;
> ? ? ? ?connector->display_info.subpixel_order = subpixel_order;
> ? ? ? ?drm_sysfs_connector_add(connector);
> + ? ? ? if (connector_type == DRM_MODE_CONNECTOR_LVDS) {
> + ? ? ? ? ? ? ? struct drm_encoder *drm_encoder;
> +
> + ? ? ? ? ? ? ? list_for_each_entry(drm_encoder,
> &dev->mode_config.encoder_list, head) {
> + ? ? ? ? ? ? ? ? ? ? ? struct radeon_encoder *radeon_encoder;
> +
> + ? ? ? ? ? ? ? ? ? ? ? radeon_encoder = to_radeon_encoder(drm_encoder);
> + ? ? ? ? ? ? ? ? ? ? ? if (radeon_encoder->encoder_id ==
> ENCODER_OBJECT_ID_INTERNAL_LVDS)
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? radeon_legacy_backlight_init(radeon_encoder,
> connector);
> + ? ? ? ? ? ? ? }
> + ? ? ? }
> ? ? ? ?return;
>
> ?failed:
> diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
> b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
> index 59f834b..ba7dcc6 100644
> --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
> +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
> @@ -28,6 +28,10 @@
> ?#include "radeon_drm.h"
> ?#include "radeon.h"
> ?#include "atom.h"
> +#include <linux/backlight.h>
> +#ifdef CONFIG_PMAC_BACKLIGHT
> +#include <asm/backlight.h>
> +#endif
>
> ?static void radeon_legacy_encoder_disable(struct drm_encoder *encoder)
> ?{
> @@ -39,7 +43,7 @@ static void radeon_legacy_encoder_disable(struct
> drm_encoder *encoder)
> ? ? ? ?radeon_encoder->active_device = 0;
> ?}
>
> -static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
> +static void radeon_legacy_lvds_update(struct drm_encoder *encoder, int mode)
> ?{
> ? ? ? ?struct drm_device *dev = encoder->dev;
> ? ? ? ?struct radeon_device *rdev = dev->dev_private;
> @@ -47,15 +51,23 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder
> *encoder, int mode)
> ? ? ? ?uint32_t lvds_gen_cntl, lvds_pll_cntl, pixclks_cntl, disp_pwr_man;
> ? ? ? ?int panel_pwr_delay = 2000;
> ? ? ? ?bool is_mac = false;
> + ? ? ? uint8_t backlight_level;
> ? ? ? ?DRM_DEBUG_KMS("\n");
>
> + ? ? ? lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
> + ? ? ? backlight_level = (lvds_gen_cntl >> RADEON_LVDS_BL_MOD_LEVEL_SHIFT) &
> 0xff;
> +
> ? ? ? ?if (radeon_encoder->enc_priv) {
> ? ? ? ? ? ? ? ?if (rdev->is_atom_bios) {
> ? ? ? ? ? ? ? ? ? ? ? ?struct radeon_encoder_atom_dig *lvds =
> radeon_encoder->enc_priv;
> ? ? ? ? ? ? ? ? ? ? ? ?panel_pwr_delay = lvds->panel_pwr_delay;
> + ? ? ? ? ? ? ? ? ? ? ? if (lvds->bl_dev)
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? backlight_level = lvds->backlight_level;
> ? ? ? ? ? ? ? ?} else {
> ? ? ? ? ? ? ? ? ? ? ? ?struct radeon_encoder_lvds *lvds =
> radeon_encoder->enc_priv;
> ? ? ? ? ? ? ? ? ? ? ? ?panel_pwr_delay = lvds->panel_pwr_delay;
> + ? ? ? ? ? ? ? ? ? ? ? if (lvds->bl_dev)
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? backlight_level = lvds->backlight_level;
> ? ? ? ? ? ? ? ?}
> ? ? ? ?}
>
> @@ -82,11 +94,13 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder
> *encoder, int mode)
> ? ? ? ? ? ? ? ?lvds_pll_cntl &= ~RADEON_LVDS_PLL_RESET;
> ? ? ? ? ? ? ? ?WREG32(RADEON_LVDS_PLL_CNTL, lvds_pll_cntl);
>
> - ? ? ? ? ? ? ? lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
> - ? ? ? ? ? ? ? lvds_gen_cntl |= (RADEON_LVDS_ON | RADEON_LVDS_EN |
> RADEON_LVDS_DIGON | RADEON_LVDS_BLON);
> + ? ? ? ? ? ? ? lvds_gen_cntl &= ~(RADEON_LVDS_DISPLAY_DIS |
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?RADEON_LVDS_BL_MOD_LEVEL_MASK);
> + ? ? ? ? ? ? ? lvds_gen_cntl |= (RADEON_LVDS_ON | RADEON_LVDS_EN |
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RADEON_LVDS_DIGON | RADEON_LVDS_BLON |
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? (backlight_level <<
> RADEON_LVDS_BL_MOD_LEVEL_SHIFT));
> ? ? ? ? ? ? ? ?if (is_mac)
> ? ? ? ? ? ? ? ? ? ? ? ?lvds_gen_cntl |= RADEON_LVDS_BL_MOD_EN;
> - ? ? ? ? ? ? ? lvds_gen_cntl &= ~(RADEON_LVDS_DISPLAY_DIS);
> ? ? ? ? ? ? ? ?udelay(panel_pwr_delay * 1000);
> ? ? ? ? ? ? ? ?WREG32(RADEON_LVDS_GEN_CNTL, lvds_gen_cntl);
> ? ? ? ? ? ? ? ?break;
> @@ -95,7 +109,6 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder
> *encoder, int mode)
> ? ? ? ?case DRM_MODE_DPMS_OFF:
> ? ? ? ? ? ? ? ?pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
> ? ? ? ? ? ? ? ?WREG32_PLL_P(RADEON_PIXCLKS_CNTL, 0,
> ~RADEON_PIXCLK_LVDS_ALWAYS_ONb);
> - ? ? ? ? ? ? ? lvds_gen_cntl = RREG32(RADEON_LVDS_GEN_CNTL);
> ? ? ? ? ? ? ? ?lvds_gen_cntl |= RADEON_LVDS_DISPLAY_DIS;
> ? ? ? ? ? ? ? ?if (is_mac) {
> ? ? ? ? ? ? ? ? ? ? ? ?lvds_gen_cntl &= ~RADEON_LVDS_BL_MOD_EN;
> @@ -119,6 +132,25 @@ static void radeon_legacy_lvds_dpms(struct drm_encoder
> *encoder, int mode)
>
> ?}
>
> +static void radeon_legacy_lvds_dpms(struct drm_encoder *encoder, int mode)
> +{
> + ? ? ? struct radeon_device *rdev = encoder->dev->dev_private;
> + ? ? ? struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> + ? ? ? DRM_DEBUG("\n");
> +
> + ? ? ? if (radeon_encoder->enc_priv) {
> + ? ? ? ? ? ? ? if (rdev->is_atom_bios) {
> + ? ? ? ? ? ? ? ? ? ? ? struct radeon_encoder_atom_dig *lvds =
> radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? ? ? ? ? lvds->dpms_mode = mode;
> + ? ? ? ? ? ? ? } else {
> + ? ? ? ? ? ? ? ? ? ? ? struct radeon_encoder_lvds *lvds =
> radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? ? ? ? ? lvds->dpms_mode = mode;
> + ? ? ? ? ? ? ? }
> + ? ? ? }
> +
> + ? ? ? radeon_legacy_lvds_update(encoder, mode);
> +}
> +
> ?static void radeon_legacy_lvds_prepare(struct drm_encoder *encoder)
> ?{
> ? ? ? ?struct radeon_device *rdev = encoder->dev->dev_private;
> @@ -237,9 +269,222 @@ static const struct drm_encoder_helper_funcs
> radeon_legacy_lvds_helper_funcs = {
> ? ? ? ?.disable = radeon_legacy_encoder_disable,
> ?};
>
> +#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
> +
> +#define MAX_RADEON_LEVEL 0xFF
> +
> +struct radeon_backlight_privdata {
> + ? ? ? struct radeon_encoder *encoder;
> + ? ? ? uint8_t negative;
> +};
> +
> +static uint8_t radeon_legacy_lvds_level(struct backlight_device *bd)
> +{
> + ? ? ? struct radeon_backlight_privdata *pdata = bl_get_data(bd);
> + ? ? ? uint8_t level;
> +
> + ? ? ? /* 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
> + ? ? ? ? ? ? ? level = bd->props.brightness;
> +
> + ? ? ? if (pdata->negative)
> + ? ? ? ? ? ? ? level = MAX_RADEON_LEVEL - level;
> +
> + ? ? ? return level;
> +}
> +
> +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);
> +
> + ? ? ? return 0;
> +}
> +
> +static int radeon_legacy_backlight_get_brightness(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;
> + ? ? ? uint8_t backlight_level;
> +
> + ? ? ? backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >>
> + ? ? ? ? ? ? ? ? ? ? ? ? ?RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
> +
> + ? ? ? return pdata->negative ? MAX_RADEON_LEVEL - backlight_level :
> backlight_level;
> +}
> +
> +static const struct backlight_ops radeon_backlight_ops = {
> + ? ? ? .get_brightness = radeon_legacy_backlight_get_brightness,
> + ? ? ? .update_status ?= radeon_legacy_backlight_update_status,
> +};
> +
> +void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? struct drm_connector *drm_connector)
> +{
> + ? ? ? struct drm_device *dev = radeon_encoder->base.dev;
> + ? ? ? struct radeon_device *rdev = dev->dev_private;
> + ? ? ? struct backlight_device *bd;
> + ? ? ? struct backlight_properties props;
> + ? ? ? struct radeon_backlight_privdata *pdata;
> + ? ? ? uint8_t backlight_level;
> +
> + ? ? ? if (!radeon_encoder->enc_priv)
> + ? ? ? ? ? ? ? return;
> +
> +#ifdef CONFIG_PMAC_BACKLIGHT
> + ? ? ? if (!pmac_has_backlight_type("ati") &&
> + ? ? ? ? ? !pmac_has_backlight_type("mnca"))
> + ? ? ? ? ? ? ? return;
> +#endif
> +
> + ? ? ? pdata = kmalloc(sizeof(struct radeon_backlight_privdata), GFP_KERNEL);
> + ? ? ? if (!pdata) {
> + ? ? ? ? ? ? ? DRM_ERROR("Memory allocation failed\n");
> + ? ? ? ? ? ? ? goto error;
> + ? ? ? }
> +
> + ? ? ? props.max_brightness = MAX_RADEON_LEVEL;
> + ? ? ? props.type = BACKLIGHT_RAW;
> + ? ? ? bd = backlight_device_register("radeon_bl", &drm_connector->kdev,
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?pdata, &radeon_backlight_ops, &props);
> + ? ? ? if (IS_ERR(bd)) {
> + ? ? ? ? ? ? ? DRM_ERROR("Backlight registration failed\n");
> + ? ? ? ? ? ? ? goto error;
> + ? ? ? }
> +
> + ? ? ? pdata->encoder = radeon_encoder;
> +
> + ? ? ? backlight_level = (RREG32(RADEON_LVDS_GEN_CNTL) >>
> + ? ? ? ? ? ? ? ? ? ? ? ? ?RADEON_LVDS_BL_MOD_LEVEL_SHIFT) & 0xff;
> +
> + ? ? ? /* First, try to detect backlight level sense based on the assumption
> + ? ? ? ?* that firmware set it up at full brightness
> + ? ? ? ?*/
> + ? ? ? if (backlight_level == 0)
> + ? ? ? ? ? ? ? pdata->negative = true;
> + ? ? ? else if (backlight_level == 0xff)
> + ? ? ? ? ? ? ? pdata->negative = false;
> + ? ? ? else {
> + ? ? ? ? ? ? ? /* XXX hack... maybe some day we can figure out in what
> direction
> + ? ? ? ? ? ? ? ?* backlight should work on a given panel?
> + ? ? ? ? ? ? ? ?*/
> + ? ? ? ? ? ? ? pdata->negative = (rdev->family != CHIP_RV200 &&
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?rdev->family != CHIP_RV250 &&
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?rdev->family != CHIP_RV280 &&
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?rdev->family != CHIP_RV350);
> +
> +#ifdef CONFIG_PMAC_BACKLIGHT
> + ? ? ? ? ? ? ? pdata->negative = (pdata->negative ||
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?of_machine_is_compatible("PowerBook4,3") ||
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?of_machine_is_compatible("PowerBook6,3") ||
> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?of_machine_is_compatible("PowerBook6,5"));
> +#endif
> + ? ? ? }
> +
> + ? ? ? if (rdev->is_atom_bios) {
> + ? ? ? ? ? ? ? struct radeon_encoder_atom_dig *lvds =
> radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? lvds->bl_dev = bd;
> + ? ? ? } else {
> + ? ? ? ? ? ? ? struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? lvds->bl_dev = bd;
> + ? ? ? }
> +
> + ? ? ? bd->props.brightness = radeon_legacy_backlight_get_brightness(bd);
> + ? ? ? bd->props.power = FB_BLANK_UNBLANK;
> + ? ? ? backlight_update_status(bd);
> +
> + ? ? ? DRM_INFO("radeon legacy LVDS backlight initialized\n");
> +
> + ? ? ? return;
> +
> +error:
> + ? ? ? kfree(pdata);
> + ? ? ? return;
> +}
> +
> +static void radeon_legacy_backlight_exit(struct radeon_encoder
> *radeon_encoder)
> +{
> + ? ? ? struct drm_device *dev = radeon_encoder->base.dev;
> + ? ? ? struct radeon_device *rdev = dev->dev_private;
> + ? ? ? struct backlight_device *bd = NULL;
> +
> + ? ? ? if (!radeon_encoder->enc_priv)
> + ? ? ? ? ? ? ? return;
> +
> + ? ? ? if (rdev->is_atom_bios) {
> + ? ? ? ? ? ? ? struct radeon_encoder_atom_dig *lvds =
> radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? bd = lvds->bl_dev;
> + ? ? ? ? ? ? ? lvds->bl_dev = NULL;
> + ? ? ? } else {
> + ? ? ? ? ? ? ? struct radeon_encoder_lvds *lvds = radeon_encoder->enc_priv;
> + ? ? ? ? ? ? ? bd = lvds->bl_dev;
> + ? ? ? ? ? ? ? lvds->bl_dev = NULL;
> + ? ? ? }
> +
> + ? ? ? if (bd) {
> + ? ? ? ? ? ? ? struct radeon_legacy_backlight_privdata *pdata;
> +
> + ? ? ? ? ? ? ? pdata = bl_get_data(bd);
> + ? ? ? ? ? ? ? backlight_device_unregister(bd);
> + ? ? ? ? ? ? ? kfree(pdata);
> +
> + ? ? ? ? ? ? ? DRM_INFO("radeon legacy LVDS backlight unloaded\n");
> + ? ? ? }
> +}
> +
> +#else /* !CONFIG_BACKLIGHT_CLASS_DEVICE */
> +
> +static void radeon_legacy_backlight_init(struct radeon_encoder *encoder)
> +{
> +}
> +
> +static void radeon_legacy_backlight_exit(struct radeon_encoder *encoder)
> +{
> +}
> +
> +#endif
> +
> +
> +static void radeon_lvds_enc_destroy(struct drm_encoder *encoder)
> +{
> + ? ? ? struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> +
> + ? ? ? if (radeon_encoder->enc_priv) {
> + ? ? ? ? ? ? ? radeon_legacy_backlight_exit(radeon_encoder);
> + ? ? ? ? ? ? ? kfree(radeon_encoder->enc_priv);
> + ? ? ? }
> + ? ? ? drm_encoder_cleanup(encoder);
> + ? ? ? kfree(radeon_encoder);
> +}
>
> ?static const struct drm_encoder_funcs radeon_legacy_lvds_enc_funcs = {
> - ? ? ? .destroy = radeon_enc_destroy,
> + ? ? ? .destroy = radeon_lvds_enc_destroy,
> ?};
>
> ?static void radeon_legacy_primary_dac_dpms(struct drm_encoder *encoder, int
> mode)
> diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
> b/drivers/gpu/drm/radeon/radeon_mode.h
> index 12bdeab..32c6257 100644
> --- a/drivers/gpu/drm/radeon/radeon_mode.h
> +++ b/drivers/gpu/drm/radeon/radeon_mode.h
> @@ -300,6 +300,11 @@ struct radeon_encoder_lvds {
> ? ? ? ?uint32_t lvds_gen_cntl;
> ? ? ? ?/* panel mode */
> ? ? ? ?struct drm_display_mode native_mode;
> +#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
> + ? ? ? struct backlight_device *bl_dev;
> + ? ? ? int ? ? ?dpms_mode;
> + ? ? ? uint8_t ?backlight_level;
> +#endif
> ?};
>
> ?struct radeon_encoder_tv_dac {
> @@ -353,6 +358,11 @@ struct radeon_encoder_atom_dig {
> ? ? ? ?uint32_t lcd_ss_id;
> ? ? ? ?/* panel mode */
> ? ? ? ?struct drm_display_mode native_mode;
> +#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
> + ? ? ? struct backlight_device *bl_dev;
> + ? ? ? int dpms_mode;
> + ? ? ? uint8_t backlight_level;
> +#endif
> ?};
>
> ?struct radeon_encoder_atom_dac {
> --
> 1.7.3.4
>
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