kernel/drm-encoder-disable.patch

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2010-07-30 00:19:53 +00:00
From 0b91f360956aa7a5aa8900d358d1bff3020182e0 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Thu, 1 Jul 2010 12:34:56 +1000
Subject: [PATCH 1/2] drm: disable encoder rather than dpms off in drm_crtc_prepare_encoders()
Original behaviour will be preserved for drivers that don't implement
disable() hooks for an encoder.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/drm_crtc_helper.c | 22 ++++++++++++++--------
1 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index b142ac2..32dae0e 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -201,6 +201,17 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc)
}
EXPORT_SYMBOL(drm_helper_crtc_in_use);
+static void
+drm_encoder_disable(struct drm_encoder *encoder)
+{
+ struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+
+ if (encoder_funcs->disable)
+ (*encoder_funcs->disable)(encoder);
+ else
+ (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+}
+
/**
* drm_helper_disable_unused_functions - disable unused objects
* @dev: DRM device
@@ -215,7 +226,6 @@ void drm_helper_disable_unused_functions(struct drm_device *dev)
{
struct drm_encoder *encoder;
struct drm_connector *connector;
- struct drm_encoder_helper_funcs *encoder_funcs;
struct drm_crtc *crtc;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
@@ -226,12 +236,8 @@ void drm_helper_disable_unused_functions(struct drm_device *dev)
}
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- encoder_funcs = encoder->helper_private;
if (!drm_helper_encoder_in_use(encoder)) {
- if (encoder_funcs->disable)
- (*encoder_funcs->disable)(encoder);
- else
- (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+ drm_encoder_disable(encoder);
/* disconnector encoder from any connector */
encoder->crtc = NULL;
}
@@ -292,11 +298,11 @@ drm_crtc_prepare_encoders(struct drm_device *dev)
encoder_funcs = encoder->helper_private;
/* Disable unused encoders */
if (encoder->crtc == NULL)
- (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+ drm_encoder_disable(encoder);
/* Disable encoders whose CRTC is about to change */
if (encoder_funcs->get_crtc &&
encoder->crtc != (*encoder_funcs->get_crtc)(encoder))
- (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);
+ drm_encoder_disable(encoder);
}
}
--
1.7.1.1