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Message-Id: <905b9ca72f43d40438c8cb1199cde140eb123204.1694767209.git.geert+renesas@glider.be>
Date: Fri, 15 Sep 2023 10:53:54 +0200
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Thomas Zimmermann <tzimmermann@...e.de>,
Magnus Damm <magnus.damm@...il.com>
Cc: dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert+renesas@...der.be>,
Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
Subject: [PATCH v4 39/41] drm: renesas: shmobile: Remove internal CRTC state tracking
Now the suspend/resume methods no longer need to look at internal driver
state, the dpms and started fields in the shmob_drm_crtc structure can
be removed, as well as the shmob_drm_crtc_dpms() wrapper. After this,
shmob_drm_crtc_atomic_{en,dis}able() became just wrappers around
shmob_drm_crtc_st{art,op}(), so inline the latter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
---
v4:
- No changes,
v3:
- No changes,
v2:
- Add Reviewed-by,
- Inline shmob_drm_crtc_st{art,op}().
---
.../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 66 ++++---------------
.../gpu/drm/renesas/shmobile/shmob_drm_crtc.h | 3 -
2 files changed, 11 insertions(+), 58 deletions(-)
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
index a176cd3e494ed2fd..e4d176b1f47654a8 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
@@ -191,25 +191,21 @@ static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
}
}
-/*
- * shmob_drm_crtc_start - Configure and start the LCDC
- * @scrtc: the SH Mobile CRTC
- *
- * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
- * ...) are not touched by this function.
- */
-static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
+static inline struct shmob_drm_crtc *to_shmob_crtc(struct drm_crtc *crtc)
{
- struct drm_crtc *crtc = &scrtc->base;
+ return container_of(crtc, struct shmob_drm_crtc, base);
+}
+
+static void shmob_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
+ struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
struct device *dev = sdev->dev;
u32 value;
int ret;
- if (scrtc->started)
- return;
-
ret = pm_runtime_resume_and_get(dev);
if (ret)
return;
@@ -256,18 +252,14 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
/* Turn vertical blank interrupt reporting back on. */
drm_crtc_vblank_on(crtc);
-
- scrtc->started = true;
}
-static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
+static void shmob_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
{
- struct drm_crtc *crtc = &scrtc->base;
+ struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
- if (!scrtc->started)
- return;
-
/*
* Disable vertical blank interrupt reporting. We first need to wait
* for page flip completion before stopping the CRTC as userspace
@@ -283,28 +275,6 @@ static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
lcdc_write(sdev, LDCNT1R, 0);
pm_runtime_put(sdev->dev);
-
- scrtc->started = false;
-}
-
-static inline struct shmob_drm_crtc *to_shmob_crtc(struct drm_crtc *crtc)
-{
- return container_of(crtc, struct shmob_drm_crtc, base);
-}
-
-static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
- struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
-
- if (scrtc->dpms == mode)
- return;
-
- if (mode == DRM_MODE_DPMS_ON)
- shmob_drm_crtc_start(scrtc);
- else
- shmob_drm_crtc_stop(scrtc);
-
- scrtc->dpms = mode;
}
static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
@@ -323,18 +293,6 @@ static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
}
}
-static void shmob_drm_crtc_atomic_enable(struct drm_crtc *crtc,
- struct drm_atomic_state *state)
-{
- shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
-}
-
-static void shmob_drm_crtc_atomic_disable(struct drm_crtc *crtc,
- struct drm_atomic_state *state)
-{
- shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-}
-
static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
.atomic_flush = shmob_drm_crtc_atomic_flush,
.atomic_enable = shmob_drm_crtc_atomic_enable,
@@ -424,8 +382,6 @@ int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
init_waitqueue_head(&sdev->crtc.flip_wait);
- sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
-
primary = shmob_drm_plane_create(sdev, DRM_PLANE_TYPE_PRIMARY, 0);
if (IS_ERR(primary))
return PTR_ERR(primary);
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
index 37380c815f1f5a08..89a0746f9a35807d 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
@@ -27,9 +27,6 @@ struct shmob_drm_crtc {
struct drm_pending_vblank_event *event;
wait_queue_head_t flip_wait;
- int dpms;
-
- bool started;
};
struct shmob_drm_connector {
--
2.34.1
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