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From: Maxime Ripard <maxime@cerno.tech>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Eric Anholt <eric@anholt.net>
Cc: dri-devel@lists.freedesktop.org,
	linux-rpi-kernel@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Tim Gover <tim.gover@raspberrypi.com>,
	Phil Elwell <phil@raspberrypi.com>,
	Maxime Ripard <maxime@cerno.tech>
Subject: [PATCH v4 27/78] drm/vc4: crtc: Move HVS channel init before the PV initialisation
Date: Wed,  8 Jul 2020 19:41:35 +0200	[thread overview]
Message-ID: <03aa26eb5be1c558e3048a3b4ff3214856d5c490.1594230107.git-series.maxime@cerno.tech> (raw)
In-Reply-To: <cover.7a1aa1784976093af26cb31fd283cf5b3ed568bb.1594230107.git-series.maxime@cerno.tech>

In order to avoid stale pixels getting stuck in an intermediate FIFO
between the HVS and the pixelvalve on BCM2711, we need to configure the HVS
channel before the pixelvalve is reset and configured.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_crtc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 2c5ff45dc315..b7b0e19e2fe1 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -427,10 +427,6 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
 
 	require_hvs_enabled(dev);
 
-	vc4_crtc_config_pv(crtc);
-
-	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
-
 	/* Enable vblank irq handling before crtc is started otherwise
 	 * drm_crtc_get_vblank() fails in vc4_crtc_update_dlist().
 	 */
@@ -438,6 +434,10 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
 
 	vc4_hvs_atomic_enable(crtc, old_state);
 
+	vc4_crtc_config_pv(crtc);
+
+	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
+
 	/* When feeding the transposer block the pixelvalve is unneeded and
 	 * should not be enabled.
 	 */
-- 
git-series 0.9.1

  parent reply	other threads:[~2020-07-08 17:46 UTC|newest]

Thread overview: 144+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200709070649epcas1p13664bacc66a0f73443bf4d3e8940f933@epcas1p1.samsung.com>
2020-07-08 17:41 ` [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 01/78] dt-bindings: display: Add support for the BCM2711 HVS Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 02/78] drm/vc4: Add support for the BCM2711 HVS5 Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 03/78] drm/vc4: hvs: Boost the core clock during modeset Maxime Ripard
2020-09-01 11:21     ` Chanwoo Choi
2020-09-01 11:48       ` Chanwoo Choi
2020-09-02 14:48       ` Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 04/78] drm/vc4: plane: Change LBM alignment constraint on LBM Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 05/78] drm/vc4: plane: Optimize the LBM allocation size Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 06/78] drm/vc4: plane: Create more planes Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 07/78] drm/vc4: crtc: Deal with different number of pixel per clock Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 08/78] drm/vc4: crtc: Use a shared interrupt Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 09/78] drm/vc4: crtc: Move the cob allocation outside of bind Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 10/78] drm/vc4: crtc: Rename HVS channel to output Maxime Ripard
2020-07-28  9:48     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 11/78] drm/vc4: crtc: Use local chan variable Maxime Ripard
2020-07-28  9:50     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 12/78] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable Maxime Ripard
2020-07-28  9:57     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 13/78] drm/vc4: kms: Convert to for_each_new_crtc_state Maxime Ripard
2020-07-29 15:02     ` Dave Stevenson
2020-09-02 17:59       ` Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 14/78] drm/vc4: crtc: Assign output to channel automatically Maxime Ripard
2020-07-29 14:31     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 15/78] drm/vc4: crtc: Add FIFO depth to vc4_crtc_data Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 16/78] drm/vc4: crtc: Add function to compute FIFO level bits Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 17/78] drm/vc4: crtc: Rename HDMI encoder type to HDMI0 Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 18/78] drm/vc4: crtc: Add HDMI1 encoder type Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 19/78] drm/vc4: crtc: Disable color management for HVS5 Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 20/78] drm/vc4: crtc: Turn pixelvalve reset into a function Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 21/78] drm/vc4: crtc: Move PV dump to config_pv Maxime Ripard
2020-07-28 10:30     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 22/78] drm/vc4: crtc: Move HVS init and close to a function Maxime Ripard
2020-07-28 10:31     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 23/78] drm/vc4: crtc: Move the HVS gamma LUT setup to our init function Maxime Ripard
2020-07-29 14:42     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 24/78] drm/vc4: hvs: Make sure our channel is reset Maxime Ripard
2020-07-28 10:37     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 25/78] drm/vc4: crtc: Remove mode_set_nofb Maxime Ripard
2020-07-28 10:38     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 26/78] drm/vc4: crtc: Remove redundant pixelvalve reset Maxime Ripard
2020-07-28 10:39     ` Dave Stevenson
2020-07-08 17:41   ` Maxime Ripard [this message]
2020-07-28 10:40     ` [PATCH v4 27/78] drm/vc4: crtc: Move HVS channel init before the PV initialisation Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 28/78] drm/vc4: encoder: Add finer-grained encoder callbacks Maxime Ripard
2020-07-28 11:25     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 29/78] drm/vc4: crtc: Add a delay after disabling the PixelValve output Maxime Ripard
2020-07-29 14:09     ` Dave Stevenson
2020-07-29 14:42       ` Maxime Ripard
2020-07-29 14:45         ` Dave Stevenson
2020-07-29 15:50         ` Stefan Wahren
2020-08-25 15:06           ` Maxime Ripard
2020-08-25 21:30             ` Stefan Wahren
2020-09-01  9:58               ` Maxime Ripard
2020-09-01 16:31                 ` Stefan Wahren
2020-09-02 15:08                   ` Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 30/78] drm/vc4: crtc: Clear the PixelValve FIFO on disable Maxime Ripard
2020-07-28 11:40     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 31/78] drm/vc4: crtc: Clear the PixelValve FIFO during configuration Maxime Ripard
2020-07-28 11:41     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 32/78] drm/vc4: hvs: Make the stop_channel function public Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 33/78] drm/vc4: hvs: Introduce a function to get the assigned FIFO Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 34/78] drm/vc4: crtc: Move the CRTC disable out Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 35/78] drm/vc4: drv: Disable the CRTC at boot time Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 36/78] dt-bindings: display: vc4: pv: Add BCM2711 pixel valves Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 37/78] drm/vc4: crtc: Add BCM2711 pixelvalves Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 38/78] drm/vc4: hdmi: Use debugfs private field Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 39/78] drm/vc4: hdmi: Move structure to header Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 40/78] drm/vc4: hdmi: rework connectors and encoders Maxime Ripard
2020-07-28 11:58     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 41/78] drm/vc4: hdmi: Remove DDC argument to connector_init Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 42/78] drm/vc4: hdmi: Rename hdmi to vc4_hdmi Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 43/78] drm/vc4: hdmi: Move accessors " Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 44/78] drm/vc4: hdmi: Use local vc4_hdmi directly Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 45/78] drm/vc4: hdmi: Add container_of macros for encoders and connectors Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 46/78] drm/vc4: hdmi: Pass vc4_hdmi to CEC code Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 47/78] drm/vc4: hdmi: Retrieve the vc4_hdmi at unbind using our device Maxime Ripard
2020-07-28 12:32     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 48/78] drm/vc4: hdmi: Remove vc4_dev hdmi pointer Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 49/78] drm/vc4: hdmi: Remove vc4_hdmi_connector Maxime Ripard
2020-07-08 17:41   ` [PATCH v4 50/78] drm/vc4: hdmi: Introduce resource init and variant Maxime Ripard
2020-07-28 12:37     ` Dave Stevenson
2020-07-08 17:41   ` [PATCH v4 51/78] drm/vc4: hdmi: Implement a register layout abstraction Maxime Ripard
2020-07-28 12:59     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 52/78] drm/vc4: hdmi: Add reset callback Maxime Ripard
2020-07-28 13:00     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 53/78] drm/vc4: hdmi: Add PHY init and disable function Maxime Ripard
2020-07-28 13:03     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 54/78] drm/vc4: hdmi: Add PHY RNG enable / " Maxime Ripard
2020-07-28 13:04     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 55/78] drm/vc4: hdmi: Add a CSC setup callback Maxime Ripard
2020-07-28 13:12     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 56/78] drm/vc4: hdmi: Store the encoder type in the variant structure Maxime Ripard
2020-07-28 13:18     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 57/78] drm/vc4: hdmi: Deal with multiple debugfs files Maxime Ripard
2020-07-28 13:20     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 58/78] drm/vc4: hdmi: Move CEC init to its own function Maxime Ripard
2020-07-28 13:23     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 59/78] drm/vc4: hdmi: Add CEC support flag Maxime Ripard
2020-07-28 13:25     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 60/78] drm/vc4: hdmi: Remove unused CEC_CLOCK_DIV define Maxime Ripard
2020-07-28 13:26     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 61/78] drm/vc4: hdmi: Rename drm_encoder pointer in mode_valid Maxime Ripard
2020-07-28 14:45     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate Maxime Ripard
2020-07-28 14:56     ` Dave Stevenson
2020-09-01  4:36     ` Chanwoo Choi
2020-09-01  9:45       ` Maxime Ripard
2020-09-01 10:48         ` Chanwoo Choi
2020-07-08 17:42   ` [PATCH v4 63/78] drm/vc4: hdmi: Use clk_set_min_rate instead Maxime Ripard
2020-07-28 14:57     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 64/78] drm/vc4: hdmi: Use reg-names to retrieve the HDMI audio registers Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 65/78] drm/vc4: hdmi: Reset audio infoframe on encoder_enable if previously streaming Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 66/78] drm/vc4: hdmi: Set the b-frame marker to the match ALSA's default Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 67/78] drm/vc4: hdmi: Add audio-related callbacks Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 68/78] drm/vc4: hdmi: Deal with multiple ALSA cards Maxime Ripard
2020-07-28 15:00     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 69/78] drm/vc4: hdmi: Remove register dumps in enable Maxime Ripard
2020-07-28 15:01     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 70/78] drm/vc4: hdmi: Always recenter the HDMI FIFO Maxime Ripard
2020-07-28 15:03     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 71/78] drm/vc4: hdmi: Implement finer-grained hooks Maxime Ripard
2020-07-28 15:04     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 72/78] drm/vc4: hdmi: Do the VID_CTL configuration at once Maxime Ripard
2020-07-28 15:06     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 73/78] drm/vc4: hdmi: Switch to blank pixels when disabled Maxime Ripard
2020-07-28 15:09     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 74/78] drm/vc4: hdmi: Support the BCM2711 HDMI controllers Maxime Ripard
2020-07-28 15:21     ` Dave Stevenson
2020-07-08 17:42   ` [PATCH v4 75/78] dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI controllers bindings Maxime Ripard
2020-09-01  4:45     ` Chanwoo Choi
2020-09-01  9:52       ` Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 76/78] dt-bindings: display: vc4: Document BCM2711 VC5 Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 77/78] drm/vc4: drv: Support BCM2711 Maxime Ripard
2020-07-28 15:30     ` Dave Stevenson
2020-09-01 10:19       ` Maxime Ripard
2020-07-08 17:42   ` [PATCH v4 78/78] ARM: dts: bcm2711: Enable the display pipeline Maxime Ripard
2020-07-28 15:35     ` Dave Stevenson
2020-07-10  7:37   ` [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline Jian-Hong Pan
2020-07-10  9:58   ` Stefan Wahren
2020-08-21  7:18   ` Hoegeun Kwon
2020-09-02 13:32     ` Maxime Ripard
2020-09-02 13:52       ` Maxime Ripard
2020-08-31  2:36   ` Chanwoo Choi

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