From: Robert Chiras <robert.chiras@nxp.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>,
Philipp Zabel <p.zabel@pengutronix.de>,
Marek Vasut <marex@denx.de>
Cc: Mirela Rabulea <mirela.rabulea@nxp.com>,
Robert Chiras <robert.chiras@nxp.com>,
Stefan Agner <stefan@agner.ch>, Shawn Guo <shawnguo@kernel.org>,
Fabio Estevam <fabio.estevam@nxp.com>,
David Airlie <airlied@linux.ie>,
Anson Huang <anson.huang@nxp.com>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
dl-linux-imx <linux-imx@nxp.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 07/11] drm/mxsfb: Signal mode changed when bpp changed
Date: Wed, 16 Jan 2019 11:48:45 +0000 [thread overview]
Message-ID: <1547639306-19151-8-git-send-email-robert.chiras@nxp.com> (raw)
In-Reply-To: <1547639306-19151-1-git-send-email-robert.chiras@nxp.com>
From: Mirela Rabulea <mirela.rabulea@nxp.com>
Add mxsfb_atomic_helper_check to signal mode changed when bpp changed.
This will trigger the execution of disable/enable on
a modeset with different bpp than the current one.
Signed-off-by: Mirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: Robert Chiras <robert.chiras@nxp.com>
---
drivers/gpu/drm/mxsfb/mxsfb_drv.c | 48 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 47 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index eb01484..3032007 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -113,9 +113,55 @@ void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb)
clk_disable_unprepare(mxsfb->clk_axi);
}
+/**
+ * mxsfb_atomic_helper_check - validate state object
+ * @dev: DRM device
+ * @state: the driver state object
+ *
+ * On top of the drm imlementation drm_atomic_helper_check,
+ * check if the bpp is changed, if so, signal mode_changed,
+ * this will trigger disable/enable
+ *
+ * RETURNS:
+ * Zero for success or -errno
+ */
+static int mxsfb_atomic_helper_check(struct drm_device *dev,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *new_state;
+ int i, ret;
+
+ ret = drm_atomic_helper_check(dev, state);
+ if (ret)
+ return ret;
+
+ for_each_new_crtc_in_state(state, crtc, new_state, i) {
+ struct drm_plane_state *primary_state;
+ int old_bpp = 0;
+ int new_bpp = 0;
+
+ if (!crtc->primary || !crtc->primary->old_fb)
+ continue;
+ primary_state =
+ drm_atomic_get_plane_state(state, crtc->primary);
+ if (!primary_state || !primary_state->fb)
+ continue;
+ old_bpp = crtc->primary->old_fb->format->depth;
+ new_bpp = primary_state->fb->format->depth;
+ if (old_bpp != new_bpp) {
+ new_state->mode_changed = true;
+ DRM_DEBUG_ATOMIC(
+ "[CRTC:%d:%s] mode changed, bpp %d->%d\n",
+ crtc->base.id, crtc->name, old_bpp, new_bpp);
+ }
+ }
+ return ret;
+}
+
static const struct drm_mode_config_funcs mxsfb_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
- .atomic_check = drm_atomic_helper_check,
+ .atomic_check = mxsfb_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
};
--
2.7.4
next prev parent reply other threads:[~2019-01-16 11:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 11:48 [PATCH 00/11] Add support for DRM bridge and additional pixel formats Robert Chiras
2019-01-16 11:48 ` [PATCH 01/11] drm/mxsfb: Update mxsfb to support a bridge Robert Chiras
2019-01-16 11:48 ` [PATCH 02/11] dt-bindings: display: Add max-res property for mxsfb Robert Chiras
2019-01-16 11:48 ` [PATCH 03/11] drm/mxsfb: Add max-res property for MXSFB Robert Chiras
2019-01-16 11:48 ` [PATCH 04/11] drm/mxsfb: Update mxsfb with additional pixel formats Robert Chiras
2019-01-16 11:48 ` [PATCH 05/11] drm/mxsfb: Fix the vblank events Robert Chiras
2019-01-16 11:48 ` [PATCH 06/11] drm/mxsfb: Add support for new pixel formats in eLCDIF Robert Chiras
2019-01-16 11:48 ` Robert Chiras [this message]
2019-01-16 11:48 ` [PATCH 09/11] drm/mxsfb: Move pm_runtime_enable at the end of probe Robert Chiras
2019-01-16 11:48 ` [PATCH 08/11] drm/mxsfb: Update mxsfb to support LCD reset Robert Chiras
2019-01-16 11:48 ` [PATCH 10/11] drm/mxsfb: Improve the axi clock usage Robert Chiras
2019-01-16 11:48 ` [PATCH 11/11] drm/mxsfb: Clear OUTSTANDING_REQS bits Robert Chiras
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