4.14-stable review patch. If anyone has any objections, please let me know.
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From: Karol Herbst kherbst@redhat.com
[ Upstream commit 9e75dc61eaa9acd1bff83c3b814ac2af6dc1f64c ]
Fixes: 3c66c87dc9 ("drm/nouveau/disp: remove hw-specific customisation of output paths") Suggested-by: Ben Skeggs skeggsb@redhat.com Signed-off-by: Karol Herbst kherbst@redhat.com Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/nouveau/nouveau_backlight.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c +++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c @@ -134,7 +134,7 @@ nv50_get_intensity(struct backlight_devi 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 = nv_encoder->or; + int or = ffs(nv_encoder->dcb->or) - 1; u32 div = 1025; u32 val;
@@ -149,7 +149,7 @@ nv50_set_intensity(struct backlight_devi 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 = nv_encoder->or; + int or = ffs(nv_encoder->dcb->or) - 1; u32 div = 1025; u32 val = (bd->props.brightness * div) / 100;
@@ -170,7 +170,7 @@ nva3_get_intensity(struct backlight_devi 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 = nv_encoder->or; + int or = ffs(nv_encoder->dcb->or) - 1; u32 div, val;
div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or)); @@ -188,7 +188,7 @@ nva3_set_intensity(struct backlight_devi 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 = nv_encoder->or; + int or = ffs(nv_encoder->dcb->or) - 1; u32 div, val;
div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or)); @@ -228,7 +228,7 @@ nv50_backlight_init(struct drm_connector return -ENODEV; }
- if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(nv_encoder->or))) + if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(ffs(nv_encoder->dcb->or) - 1))) return 0;
if (drm->client.device.info.chipset <= 0xa0 ||