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-rw-r--r--drivers/gpu/drm/drm_atomic_helper.c28
-rw-r--r--drivers/gpu/drm/drm_crtc.c4
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c9
-rw-r--r--drivers/gpu/drm/i915/intel_crt.c8
-rw-r--r--drivers/gpu/drm/i915/intel_display.c6
-rw-r--r--drivers/gpu/drm/i915/intel_drv.h2
-rw-r--r--drivers/gpu/drm/i915/intel_dvo.c8
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c8
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_connector.c4
-rw-r--r--drivers/gpu/drm/radeon/radeon_dp_mst.c3
-rw-r--r--drivers/gpu/drm/tegra/dsi.c3
-rw-r--r--drivers/gpu/drm/tegra/hdmi.c5
-rw-r--r--drivers/gpu/drm/tegra/rgb.c5
-rw-r--r--drivers/gpu/drm/tegra/sor.c3
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c3
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.h2
16 files changed, 61 insertions, 40 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 5ec13c7cc832..57847ae8ce8c 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1974,9 +1974,12 @@ EXPORT_SYMBOL(drm_atomic_helper_page_flip);
* implementing the legacy DPMS connector interface. It computes the new desired
* ->active state for the corresponding CRTC (if the connector is enabled) and
* updates it.
+ *
+ * Returns:
+ * Returns 0 on success, negative errno numbers on failure.
*/
-void drm_atomic_helper_connector_dpms(struct drm_connector *connector,
- int mode)
+int drm_atomic_helper_connector_dpms(struct drm_connector *connector,
+ int mode)
{
struct drm_mode_config *config = &connector->dev->mode_config;
struct drm_atomic_state *state;
@@ -1985,6 +1988,7 @@ void drm_atomic_helper_connector_dpms(struct drm_connector *connector,
struct drm_connector *tmp_connector;
int ret;
bool active = false;
+ int old_mode = connector->dpms;
if (mode != DRM_MODE_DPMS_ON)
mode = DRM_MODE_DPMS_OFF;
@@ -1993,18 +1997,19 @@ void drm_atomic_helper_connector_dpms(struct drm_connector *connector,
crtc = connector->state->crtc;
if (!crtc)
- return;
+ return 0;
- /* FIXME: ->dpms has no return value so can't forward the -ENOMEM. */
state = drm_atomic_state_alloc(connector->dev);
if (!state)
- return;
+ return -ENOMEM;
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc);
retry:
crtc_state = drm_atomic_get_crtc_state(state, crtc);
- if (IS_ERR(crtc_state))
- return;
+ if (IS_ERR(crtc_state)) {
+ ret = PTR_ERR(crtc_state);
+ goto fail;
+ }
WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
@@ -2023,17 +2028,16 @@ retry:
if (ret != 0)
goto fail;
- /* Driver takes ownership of state on successful async commit. */
- return;
+ /* Driver takes ownership of state on successful commit. */
+ return 0;
fail:
if (ret == -EDEADLK)
goto backoff;
+ connector->dpms = old_mode;
drm_atomic_state_free(state);
- WARN(1, "Driver bug: Changing ->active failed with ret=%i\n", ret);
-
- return;
+ return ret;
backoff:
drm_atomic_state_clear(state);
drm_atomic_legacy_backoff(state);
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 1f0da41ae2a1..dfac394d0602 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4753,9 +4753,9 @@ static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
/* Do DPMS ourselves */
if (property == connector->dev->mode_config.dpms_property) {
- if (connector->funcs->dpms)
- (*connector->funcs->dpms)(connector, (int)value);
ret = 0;
+ if (connector->funcs->dpms)
+ ret = (*connector->funcs->dpms)(connector, (int)value);
} else if (connector->funcs->set_property)
ret = connector->funcs->set_property(connector, property, value);
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index d3d038f05bf7..ef534758a02c 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -762,15 +762,18 @@ static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc)
* implementing the DPMS connector attribute. It computes the new desired DPMS
* state for all encoders and crtcs in the output mesh and calls the ->dpms()
* callback provided by the driver appropriately.
+ *
+ * Returns:
+ * Always returns 0.
*/
-void drm_helper_connector_dpms(struct drm_connector *connector, int mode)
+int drm_helper_connector_dpms(struct drm_connector *connector, int mode)
{
struct drm_encoder *encoder = connector->encoder;
struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;
int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF;
if (mode == connector->dpms)
- return;
+ return 0;
old_dpms = connector->dpms;
connector->dpms = mode;
@@ -802,7 +805,7 @@ void drm_helper_connector_dpms(struct drm_connector *connector, int mode)
}
}
- return;
+ return 0;
}
EXPORT_SYMBOL(drm_helper_connector_dpms);
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 521af2c069cb..5d78c1feec81 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -237,7 +237,7 @@ static void intel_enable_crt(struct intel_encoder *encoder)
}
/* Special dpms function to support cloning between dvo/sdvo/crt. */
-static void intel_crt_dpms(struct drm_connector *connector, int mode)
+static int intel_crt_dpms(struct drm_connector *connector, int mode)
{
struct drm_device *dev = connector->dev;
struct intel_encoder *encoder = intel_attached_encoder(connector);
@@ -249,7 +249,7 @@ static void intel_crt_dpms(struct drm_connector *connector, int mode)
mode = DRM_MODE_DPMS_OFF;
if (mode == connector->dpms)
- return;
+ return 0;
old_dpms = connector->dpms;
connector->dpms = mode;
@@ -258,7 +258,7 @@ static void intel_crt_dpms(struct drm_connector *connector, int mode)
crtc = encoder->base.crtc;
if (!crtc) {
encoder->connectors_active = false;
- return;
+ return 0;
}
/* We need the pipe to run for anything but OFF. */
@@ -281,6 +281,8 @@ static void intel_crt_dpms(struct drm_connector *connector, int mode)
}
intel_modeset_check_state(connector->dev);
+
+ return 0;
}
static enum drm_mode_status
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 40c73da2abcf..13a6608be689 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6429,14 +6429,14 @@ struct intel_connector *intel_connector_alloc(void)
/* Even simpler default implementation, if there's really no special case to
* consider. */
-void intel_connector_dpms(struct drm_connector *connector, int mode)
+int intel_connector_dpms(struct drm_connector *connector, int mode)
{
/* All the simple cases only support two dpms states. */
if (mode != DRM_MODE_DPMS_ON)
mode = DRM_MODE_DPMS_OFF;
if (mode == connector->dpms)
- return;
+ return 0;
connector->dpms = mode;
@@ -6445,6 +6445,8 @@ void intel_connector_dpms(struct drm_connector *connector, int mode)
intel_encoder_dpms(to_intel_encoder(connector->encoder), mode);
intel_modeset_check_state(connector->dev);
+
+ return 0;
}
/* Simple connector->get_hw_state implementation for encoders that support only
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 47cef0e6c79c..320c9e6bd848 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -997,7 +997,7 @@ void intel_crtc_update_dpms(struct drm_crtc *crtc);
void intel_encoder_destroy(struct drm_encoder *encoder);
int intel_connector_init(struct intel_connector *);
struct intel_connector *intel_connector_alloc(void);
-void intel_connector_dpms(struct drm_connector *, int mode);
+int intel_connector_dpms(struct drm_connector *, int mode);
bool intel_connector_get_hw_state(struct intel_connector *connector);
void intel_modeset_check_state(struct drm_device *dev);
bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index ece5bd754f85..fd5e522abebb 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -197,7 +197,7 @@ static void intel_enable_dvo(struct intel_encoder *encoder)
}
/* Special dpms function to support cloning between dvo/sdvo/crt. */
-static void intel_dvo_dpms(struct drm_connector *connector, int mode)
+static int intel_dvo_dpms(struct drm_connector *connector, int mode)
{
struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
struct drm_crtc *crtc;
@@ -208,7 +208,7 @@ static void intel_dvo_dpms(struct drm_connector *connector, int mode)
mode = DRM_MODE_DPMS_OFF;
if (mode == connector->dpms)
- return;
+ return 0;
connector->dpms = mode;
@@ -216,7 +216,7 @@ static void intel_dvo_dpms(struct drm_connector *connector, int mode)
crtc = intel_dvo->base.base.crtc;
if (!crtc) {
intel_dvo->base.connectors_active = false;
- return;
+ return 0;
}
/* We call connector dpms manually below in case pipe dpms doesn't
@@ -238,6 +238,8 @@ static void intel_dvo_dpms(struct drm_connector *connector, int mode)
}
intel_modeset_check_state(connector->dev);
+
+ return 0;
}
static enum drm_mode_status
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index aa2fd751609c..2c435a79d4da 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1509,7 +1509,7 @@ static void intel_enable_sdvo(struct intel_encoder *encoder)
}
/* Special dpms function to support cloning between dvo/sdvo/crt. */
-static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
+static int intel_sdvo_dpms(struct drm_connector *connector, int mode)
{
struct drm_crtc *crtc;
struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
@@ -1519,7 +1519,7 @@ static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
mode = DRM_MODE_DPMS_OFF;
if (mode == connector->dpms)
- return;
+ return 0;
connector->dpms = mode;
@@ -1527,7 +1527,7 @@ static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
crtc = intel_sdvo->base.base.crtc;
if (!crtc) {
intel_sdvo->base.connectors_active = false;
- return;
+ return 0;
}
/* We set active outputs manually below in case pipe dpms doesn't change
@@ -1551,6 +1551,8 @@ static void intel_sdvo_dpms(struct drm_connector *connector, int mode)
}
intel_modeset_check_state(connector->dev);
+
+ return 0;
}
static enum drm_mode_status
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 3162040bc314..1f26eba245d1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -919,7 +919,7 @@ nouveau_connector_funcs_lvds = {
.force = nouveau_connector_force
};
-static void
+static int
nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
{
struct nouveau_encoder *nv_encoder = NULL;
@@ -938,7 +938,7 @@ nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
}
}
- drm_helper_connector_dpms(connector, mode);
+ return drm_helper_connector_dpms(connector, mode);
}
static const struct drm_connector_funcs
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index e4fc8f3bf58b..5e09c061847f 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -246,9 +246,10 @@ radeon_dp_mst_connector_destroy(struct drm_connector *connector)
kfree(radeon_connector);
}
-static void radeon_connector_dpms(struct drm_connector *connector, int mode)
+static int radeon_connector_dpms(struct drm_connector *connector, int mode)
{
DRM_DEBUG_KMS("\n");
+ return 0;
}
static const struct drm_connector_funcs radeon_dp_mst_connector_funcs = {
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index ed970f622903..dc97c0b3681d 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -726,8 +726,9 @@ static void tegra_dsi_soft_reset(struct tegra_dsi *dsi)
tegra_dsi_soft_reset(dsi->slave);
}
-static void tegra_dsi_connector_dpms(struct drm_connector *connector, int mode)
+static int tegra_dsi_connector_dpms(struct drm_connector *connector, int mode)
{
+ return 0;
}
static void tegra_dsi_connector_reset(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 06ab1783bba1..fe4008a7ddba 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -772,9 +772,10 @@ static bool tegra_output_is_hdmi(struct tegra_output *output)
return drm_detect_hdmi_monitor(edid);
}
-static void tegra_hdmi_connector_dpms(struct drm_connector *connector,
- int mode)
+static int tegra_hdmi_connector_dpms(struct drm_connector *connector,
+ int mode)
{
+ return 0;
}
static const struct drm_connector_funcs tegra_hdmi_connector_funcs = {
diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c
index 7cd833f5b5b5..9a99d213e1b1 100644
--- a/drivers/gpu/drm/tegra/rgb.c
+++ b/drivers/gpu/drm/tegra/rgb.c
@@ -88,9 +88,10 @@ static void tegra_dc_write_regs(struct tegra_dc *dc,
tegra_dc_writel(dc, table[i].value, table[i].offset);
}
-static void tegra_rgb_connector_dpms(struct drm_connector *connector,
- int mode)
+static int tegra_rgb_connector_dpms(struct drm_connector *connector,
+ int mode)
{
+ return 0;
}
static const struct drm_connector_funcs tegra_rgb_connector_funcs = {
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 7591d8901f9a..ee8ad0d4a0f2 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -866,8 +866,9 @@ static void tegra_sor_debugfs_exit(struct tegra_sor *sor)
sor->debugfs_files = NULL;
}
-static void tegra_sor_connector_dpms(struct drm_connector *connector, int mode)
+static int tegra_sor_connector_dpms(struct drm_connector *connector, int mode)
{
+ return 0;
}
static enum drm_connector_status
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 07cda8cbbddb..2adc11bc0920 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1808,8 +1808,9 @@ void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
}
}
-void vmw_du_connector_dpms(struct drm_connector *connector, int mode)
+int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
{
+ return 0;
}
void vmw_du_connector_save(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index 8d038c36bd57..f1a324cfb4c3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -133,7 +133,7 @@ void vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height);
int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
-void vmw_du_connector_dpms(struct drm_connector *connector, int mode);
+int vmw_du_connector_dpms(struct drm_connector *connector, int mode);
void vmw_du_connector_save(struct drm_connector *connector);
void vmw_du_connector_restore(struct drm_connector *connector);
enum drm_connector_status
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.