[PATCH v10 15/17] drm/exynos: atomic dpms support

Gustavo Padovan
2015-06-01T15:04:53Z

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

Run dpms operations through the atomic intefaces. This basically removes
the .dpms() callback from econders and crtcs and use .disable() and
.enable() to turn the crtc on and off.

v2: Address comments by Joonyoung:
- make hdmi code call ->disable() instead of ->dpms()
- do not use WARN_ON on crtc enable/disable

v3: - Fix build failure after the hdmi change in v2
- Change dpms helper of ptn3460 bridge

v4: - remove win_commit() call from .enable()

v5: - move .atomic_check() to the atomic PageFlip patch, and transform it
in .atomic_begin()

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
---
drivers/gpu/drm/bridge/ps8622.c | 2 +-
drivers/gpu/drm/bridge/ptn3460.c | 2 +-
drivers/gpu/drm/exynos/exynos_dp_core.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_crtc.c | 58 ++++++++++++-----------------
drivers/gpu/drm/exynos/exynos_drm_dpi.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_drv.h | 4 +-
drivers/gpu/drm/exynos/exynos_drm_dsi.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_encoder.c | 21 +++--------
drivers/gpu/drm/exynos/exynos_drm_vidi.c | 2 +-
drivers/gpu/drm/exynos/exynos_hdmi.c | 6 +--
10 files changed, 40 insertions(+), 61 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ps8622.c b/drivers/gpu/drm/bridge/ps8622.c
index b604326..d686235 100644
--- a/drivers/gpu/drm/bridge/ps8622.c
+++ b/drivers/gpu/drm/bridge/ps8622.c
@@ -499,7 +499,7 @@ static void ps8622_connector_destroy(struct drm_connector *connector)
}

static const struct drm_connector_funcs ps8622_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = ps8622_detect,
.destroy = ps8622_connector_destroy,
diff --git a/drivers/gpu/drm/bridge/ptn3460.c b/drivers/gpu/drm/bridge/ptn3460.c
index 8ed3617..260bc9f 100644
--- a/drivers/gpu/drm/bridge/ptn3460.c
+++ b/drivers/gpu/drm/bridge/ptn3460.c
@@ -260,7 +260,7 @@ static void ptn3460_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs ptn3460_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = ptn3460_detect,
.destroy = ptn3460_connector_destroy,
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 195fe60..c9995b1 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -954,7 +954,7 @@ static void exynos_dp_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs exynos_dp_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = exynos_dp_detect,
.destroy = exynos_dp_connector_destroy,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 7125fbe..dd8e454 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -22,40 +22,41 @@
#include "exynos_drm_encoder.h"
#include "exynos_drm_plane.h"

-static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
+static void exynos_drm_crtc_enable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);

- DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
-
- if (exynos_crtc->dpms == mode) {
- DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+ if (exynos_crtc->enabled)
return;
- }
-
- if (mode > DRM_MODE_DPMS_ON) {
- /* wait for the completion of page flip. */
- if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
- (exynos_crtc->event == NULL), HZ/20))
- exynos_crtc->event = NULL;
- drm_crtc_vblank_off(crtc);
- }

if (exynos_crtc->ops->dpms)
- exynos_crtc->ops->dpms(exynos_crtc, mode);
+ exynos_crtc->ops->dpms(exynos_crtc, DRM_MODE_DPMS_ON);

- exynos_crtc->dpms = mode;
+ exynos_crtc->enabled = true;

- if (mode == DRM_MODE_DPMS_ON)
- drm_crtc_vblank_on(crtc);
+ drm_crtc_vblank_on(crtc);
}

static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
{
+ struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
struct drm_plane *plane;
int ret;

- exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+ if (!exynos_crtc->enabled)
+ return;
+
+ /* wait for the completion of page flip. */
+ if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
+ (exynos_crtc->event == NULL), HZ/20))
+ exynos_crtc->event = NULL;
+
+ drm_crtc_vblank_off(crtc);
+
+ if (exynos_crtc->ops->dpms)
+ exynos_crtc->ops->dpms(exynos_crtc, DRM_MODE_DPMS_OFF);
+
+ exynos_crtc->enabled = false;

drm_for_each_legacy_plane(plane, &crtc->dev->mode_config.plane_list) {
if (plane->crtc != crtc)
@@ -67,17 +68,6 @@ static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
}
}

-static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
-{
- struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
- struct exynos_drm_plane *exynos_plane = to_exynos_plane(crtc->primary);
-
- exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
-
- if (exynos_crtc->ops->win_commit)
- exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
-}
-
static bool
exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
@@ -116,9 +106,8 @@ static void exynos_crtc_atomic_flush(struct drm_crtc *crtc)
}

static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
- .dpms = exynos_drm_crtc_dpms,
+ .enable = exynos_drm_crtc_enable,
.disable = exynos_drm_crtc_disable,
- .commit = exynos_drm_crtc_commit,
.mode_fixup = exynos_drm_crtc_mode_fixup,
.mode_set_nofb = exynos_drm_crtc_mode_set_nofb,
.atomic_begin = exynos_crtc_atomic_begin,
@@ -163,7 +152,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,

init_waitqueue_head(&exynos_crtc->pending_flip_queue);

- exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
exynos_crtc->pipe = pipe;
exynos_crtc->type = type;
exynos_crtc->ops = ops;
@@ -194,7 +182,7 @@ int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);

- if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+ if (!exynos_crtc->enabled)
return -EPERM;

if (exynos_crtc->ops->enable_vblank)
@@ -209,7 +197,7 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);

- if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+ if (!exynos_crtc->enabled)
return;

if (exynos_crtc->ops->disable_vblank)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
index ced5c23..6dc328e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -60,7 +60,7 @@ static void exynos_dpi_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs exynos_dpi_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.detect = exynos_dpi_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = exynos_dpi_connector_destroy,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 29e3fb7..86d6894 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -201,7 +201,7 @@ struct exynos_drm_crtc_ops {
* drm framework doesn't support multiple irq yet.
* we can refer to the crtc to current hardware interrupt occurred through
* this pipe value.
- * @dpms: store the crtc dpms value
+ * @enabled: if the crtc is enabled or not
* @event: vblank event that is currently queued for flip
* @ops: pointer to callbacks for exynos drm specific functionality
* @ctx: A pointer to the crtc's implementation specific context
@@ -210,7 +210,7 @@ struct exynos_drm_crtc {
struct drm_crtc base;
enum exynos_drm_output_type type;
unsigned int pipe;
- unsigned int dpms;
+ bool enabled;
wait_queue_head_t pending_flip_queue;
struct drm_pending_vblank_event *event;
const struct exynos_drm_crtc_ops *ops;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index e4e7f74..190f3b3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1458,7 +1458,7 @@ static void exynos_dsi_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs exynos_dsi_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.detect = exynos_dsi_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = exynos_dsi_connector_destroy,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 915de13..0648ba4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -32,17 +32,6 @@ struct exynos_drm_encoder {
struct exynos_drm_display *display;
};

-static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
- struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
- struct exynos_drm_display *display = exynos_encoder->display;
-
- DRM_DEBUG_KMS("encoder dpms: %d\n", mode);
-
- if (display->ops->dpms)
- display->ops->dpms(display, mode);
-}
-
static bool
exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
@@ -76,7 +65,7 @@ static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder,
display->ops->mode_set(display, adjusted_mode);
}

-static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
+static void exynos_drm_encoder_enable(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
@@ -90,10 +79,13 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder)

static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
{
+ struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+ struct exynos_drm_display *display = exynos_encoder->display;
struct drm_plane *plane;
struct drm_device *dev = encoder->dev;

- exynos_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+ if (display->ops->dpms)
+ display->ops->dpms(display, DRM_MODE_DPMS_OFF);

/* all planes connected to this encoder should be also disabled. */
drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
@@ -103,10 +95,9 @@ static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
}

static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = {
- .dpms = exynos_drm_encoder_dpms,
.mode_fixup = exynos_drm_encoder_mode_fixup,
.mode_set = exynos_drm_encoder_mode_set,
- .commit = exynos_drm_encoder_commit,
+ .enable = exynos_drm_encoder_enable,
.disable = exynos_drm_encoder_disable,
};

diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index fc3a14b..63c1536 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -385,7 +385,7 @@ static void vidi_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs vidi_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = vidi_detect,
.destroy = vidi_connector_destroy,
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 471e486..8c3c27b 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1051,7 +1051,7 @@ static void hdmi_connector_destroy(struct drm_connector *connector)
}

static struct drm_connector_funcs hdmi_connector_funcs = {
- .dpms = drm_helper_connector_dpms,
+ .dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = hdmi_detect,
.destroy = hdmi_connector_destroy,
@@ -2127,8 +2127,8 @@ static void hdmi_dpms(struct exynos_drm_display *display, int mode)
*/
if (crtc)
funcs = crtc->helper_private;
- if (funcs && funcs->dpms)
- (*funcs->dpms)(crtc, mode);
+ if (funcs && funcs->disable)
+ (*funcs->disable)(crtc);

hdmi_poweroff(hdata);
break;
--
2.1.0

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