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path: root/drivers/gpu/drm/nouveau/nouveau_backlight.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_backlight.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_backlight.c90
1 files changed, 9 insertions, 81 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 91b5ecc575..d47442125f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -109,42 +109,6 @@ nv40_backlight_init(struct nouveau_encoder *encoder,
return 0;
}
-static int
-nv50_get_intensity(struct backlight_device *bd)
-{
- struct nouveau_encoder *nv_encoder = bl_get_data(bd);
- struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
- struct nvif_object *device = &drm->client.device.object;
- int or = ffs(nv_encoder->dcb->or) - 1;
- u32 div = 1025;
- u32 val;
-
- val = nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(or));
- val &= NV50_PDISP_SOR_PWM_CTL_VAL;
- return ((val * 100) + (div / 2)) / div;
-}
-
-static int
-nv50_set_intensity(struct backlight_device *bd)
-{
- struct nouveau_encoder *nv_encoder = bl_get_data(bd);
- struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
- struct nvif_object *device = &drm->client.device.object;
- int or = ffs(nv_encoder->dcb->or) - 1;
- u32 div = 1025;
- u32 val = (bd->props.brightness * div) / 100;
-
- nvif_wr32(device, NV50_PDISP_SOR_PWM_CTL(or),
- NV50_PDISP_SOR_PWM_CTL_NEW | val);
- return 0;
-}
-
-static const struct backlight_ops nv50_bl_ops = {
- .options = BL_CORE_SUSPENDRESUME,
- .get_brightness = nv50_get_intensity,
- .update_status = nv50_set_intensity,
-};
-
/*
* eDP brightness callbacks need to happen under lock, since we need to
* enable/disable the backlight ourselves for modesets
@@ -238,53 +202,25 @@ static const struct backlight_ops nv50_edp_bl_ops = {
};
static int
-nva3_get_intensity(struct backlight_device *bd)
+nv50_get_intensity(struct backlight_device *bd)
{
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
- struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
- struct nvif_object *device = &drm->client.device.object;
- int or = ffs(nv_encoder->dcb->or) - 1;
- u32 div, val;
- div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
- val = nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(or));
- val &= NVA3_PDISP_SOR_PWM_CTL_VAL;
- if (div && div >= val)
- return ((val * 100) + (div / 2)) / div;
-
- return 100;
+ return nvif_outp_bl_get(&nv_encoder->outp);
}
static int
-nva3_set_intensity(struct backlight_device *bd)
+nv50_set_intensity(struct backlight_device *bd)
{
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
- struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
- struct nvif_object *device = &drm->client.device.object;
- int or = ffs(nv_encoder->dcb->or) - 1;
- u32 div, val;
-
- div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
- val = backlight_get_brightness(bd);
- if (val)
- val = (val * div) / 100;
-
- if (div) {
- nvif_wr32(device, NV50_PDISP_SOR_PWM_CTL(or),
- val |
- NV50_PDISP_SOR_PWM_CTL_NEW |
- NVA3_PDISP_SOR_PWM_CTL_UNK);
- return 0;
- }
-
- return -EINVAL;
+ return nvif_outp_bl_set(&nv_encoder->outp, backlight_get_brightness(bd));
}
-static const struct backlight_ops nva3_bl_ops = {
+static const struct backlight_ops nv50_bl_ops = {
.options = BL_CORE_SUSPENDRESUME,
- .get_brightness = nva3_get_intensity,
- .update_status = nva3_set_intensity,
+ .get_brightness = nv50_get_intensity,
+ .update_status = nv50_set_intensity,
};
/* FIXME: perform backlight probing for eDP _before_ this, this only gets called after connector
@@ -298,13 +234,12 @@ nv50_backlight_init(struct nouveau_backlight *bl,
const struct backlight_ops **ops)
{
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
- struct nvif_object *device = &drm->client.device.object;
/*
* Note when this runs the connectors have not been probed yet,
* so nv_conn->base.status is not set yet.
*/
- if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1)) ||
+ if (nvif_outp_bl_get(&nv_encoder->outp) < 0 ||
drm_helper_probe_detect(&nv_conn->base, NULL, false) != connector_status_connected)
return -ENODEV;
@@ -346,15 +281,8 @@ nv50_backlight_init(struct nouveau_backlight *bl,
}
}
- if (drm->client.device.info.chipset <= 0xa0 ||
- drm->client.device.info.chipset == 0xaa ||
- drm->client.device.info.chipset == 0xac)
- *ops = &nv50_bl_ops;
- else
- *ops = &nva3_bl_ops;
-
+ *ops = &nv50_bl_ops;
props->max_brightness = 100;
-
return 0;
}