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From: Eric Anholt <eric@anholt.net>
To: Maxime Ripard <maxime@cerno.tech>
Cc: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	DRI Development <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>
Subject: Re: [PATCH v3 032/105] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable
Date: Wed, 27 May 2020 09:54:44 -0700	[thread overview]
Message-ID: <CADaigPU7c=1u47R9GzvGCH_Z2fywY1foGYEy=KbBikjUQpwUFg@mail.gmail.com> (raw)
In-Reply-To: <d2c1850e38e14f3def4c0307240e6826e296c14b.1590594512.git-series.maxime@cerno.tech>

On Wed, May 27, 2020 at 8:50 AM Maxime Ripard <maxime@cerno.tech> wrote:
>
> The VIDEN bit in the pixelvalve currently being used to enable or disable
> the pixelvalve seems to not be enough in some situations, which whill end
> up with the pixelvalve stalling.
>
> In such a case, even re-enabling VIDEN doesn't bring it back and we need to
> clear the FIFO. This can only be done if the pixelvalve is disabled though.
>
> In order to overcome this, we can configure the pixelvalve during
> mode_set_no_fb, but only enable it in atomic_enable and flush the FIFO
> there, and in atomic_disable disable the pixelvalve again.

What displays has this been tested with?  Getting this sequencing
right is so painful, and things like DSI are tricky to get to light
up.

  reply	other threads:[~2020-05-27 16:54 UTC|newest]

Thread overview: 151+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27 15:47 [PATCH v3 000/105] drm/vc4: Support BCM2711 Display Pipeline Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 001/105] reset: Move reset-simple header out of drivers/reset Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 002/105] reset: simple: Add reset callback Maxime Ripard
2020-05-27 16:03   ` Philipp Zabel
2020-05-27 15:47 ` [PATCH v3 003/105] dt-bindings: clock: Add BCM2711 DVP binding Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 004/105] clk: bcm: Add BCM2711 DVP driver Maxime Ripard
2020-06-04 17:26   ` Nicolas Saenz Julienne
2020-06-05 17:43     ` Maxime Ripard
2020-06-05 18:11       ` Nicolas Saenz Julienne
2020-06-05 17:56   ` Eric Anholt
2020-05-27 15:47 ` [PATCH v3 005/105] ARM: dts: bcm2711: Add HDMI DVP Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 006/105] dt-bindings: display: Convert VC4 bindings to schemas Maxime Ripard
2020-05-27 19:12   ` Rob Herring
2020-06-02 15:00     ` Maxime Ripard
2020-06-17 20:21   ` Rob Herring
2020-05-27 15:47 ` [PATCH v3 007/105] dt-bindings: display: vc4: dpi: Add missing clock-names property Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 008/105] dt-bindings: display: vc4: dsi: Add missing clock properties Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 009/105] dt-bindings: display: vc4: hdmi: Add missing clock-names property Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 010/105] dt-bindings: display: vc4: Document BCM2711 VC5 Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 011/105] drm/vc4: drv: Add include guards Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 012/105] drm/vc4: drv: Support BCM2711 Maxime Ripard
2020-05-27 16:27   ` Eric Anholt
2020-05-27 15:47 ` [PATCH v3 013/105] dt-bindings: display: Add support for the BCM2711 HVS Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 014/105] drm/vc4: Add support for the BCM2711 HVS5 Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 015/105] drm/vc4: hvs: Boost the core clock during modeset Maxime Ripard
2020-05-27 16:33   ` Eric Anholt
2020-06-02 12:52     ` Maxime Ripard
2020-06-02 17:52       ` Eric Anholt
2020-05-27 15:47 ` [PATCH v3 016/105] drm/vc4: plane: Improve LBM usage Maxime Ripard
2020-05-27 16:44   ` Eric Anholt
2020-05-27 15:47 ` [PATCH v3 017/105] drm/vc4: plane: Move planes creation to its own function Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 018/105] drm/vc4: plane: Move additional planes creation to driver Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 019/105] drm/vc4: plane: Register all the planes at once Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 020/105] drm/vc4: plane: Create overlays for any CRTC Maxime Ripard
2020-05-27 16:52   ` Eric Anholt
2020-05-27 15:47 ` [PATCH v3 021/105] drm/vc4: plane: Create more planes Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 022/105] drm/vc4: crtc: Rename SoC data structures Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 023/105] drm/vc4: crtc: Switch to of_device_get_match_data Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 024/105] drm/vc4: crtc: Move crtc state to common header Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 025/105] drm/vc4: crtc: Deal with different number of pixel per clock Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 026/105] drm/vc4: crtc: Use a shared interrupt Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 027/105] drm/vc4: crtc: Turn static const variable into a define Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 028/105] drm/vc4: crtc: Restrict HACT_ACT setup to DSI Maxime Ripard
2020-05-27 15:47 ` [PATCH v3 029/105] drm/vc4: crtc: Move the cob allocation outside of bind Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 030/105] drm/vc4: crtc: Rename HVS channel to output Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 031/105] drm/vc4: crtc: Use local chan variable Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 032/105] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable Maxime Ripard
2020-05-27 16:54   ` Eric Anholt [this message]
2020-06-02 14:12     ` Maxime Ripard
2020-06-02 15:02       ` Dave Stevenson
2020-06-02 19:31         ` Eric Anholt
2020-06-02 20:03           ` Stefan Wahren
2020-06-03 13:14             ` Maxime Ripard
2020-06-03 15:26               ` Stefan Wahren
2020-06-12 15:35           ` Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 033/105] drm/vc4: crtc: Assign output to channel automatically Maxime Ripard
2020-05-27 17:23   ` Eric Anholt
2020-06-16 15:04     ` Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 034/105] drm/vc4: crtc: Add FIFO depth to vc4_crtc_data Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 035/105] drm/vc4: crtc: Add function to compute FIFO level bits Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 036/105] drm/vc4: crtc: Rename HDMI encoder type to HDMI0 Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 037/105] drm/vc4: crtc: Add HDMI1 encoder type Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 038/105] drm/vc4: crtc: Remove redundant call to drm_crtc_enable_color_mgmt Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 039/105] drm/vc4: crtc: Disable color management for HVS5 Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 040/105] drm/vc4: crtc: Turn pixelvalve reset into a function Maxime Ripard
2020-05-27 17:30   ` Eric Anholt
2020-05-27 15:48 ` [PATCH v3 041/105] drm/vc4: crtc: Move HVS mode config to HVS file Maxime Ripard
2020-05-27 18:26   ` Eric Anholt
2020-05-27 15:48 ` [PATCH v3 042/105] drm/vc4: crtc: Move PV dump to config_pv Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 043/105] drm/vc4: crtc: Move HVS init and close to a function Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 044/105] drm/vc4: crtc: Move the HVS gamma LUT setup to our init function Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 045/105] drm/vc4: hvs: Make sure our channel is reset Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 046/105] drm/vc4: hvs: Remove mode_set_nofb Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 047/105] drm/vc4: crtc: " Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 048/105] drm/vc4: crtc: Remove redundant pixelvalve reset Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 049/105] drm/vc4: crtc: Move HVS channel init before the PV initialisation Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 050/105] drm/vc4: encoder: Add finer-grained encoder callbacks Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 051/105] drm/vc4: crtc: Add a delay after disabling the PixelValve output Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 052/105] drm/vc4: crtc: Clear the PixelValve FIFO on disable Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 053/105] drm/vc4: crtc: Clear the PixelValve FIFO during configuration Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 054/105] drm/vc4: hvs: Make the stop_channel function public Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 055/105] drm/vc4: hvs: Introduce a function to get the assigned FIFO Maxime Ripard
2020-05-27 19:40   ` Eric Anholt
2020-06-03  9:43     ` Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 056/105] drm/vc4: crtc: Move the CRTC disable out Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 057/105] drm/vc4: drv: Disable the CRTC at boot time Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 058/105] dt-bindings: display: vc4: pv: Add BCM2711 pixel valves Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 059/105] drm/vc4: crtc: Add BCM2711 pixelvalves Maxime Ripard
2020-05-27 19:24   ` Eric Anholt
2020-05-27 15:48 ` [PATCH v3 060/105] drm/vc4: crtc: Make state functions public Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 061/105] drm/vc4: crtc: Split CRTC data in two Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 062/105] drm/vc4: crtc: Only access the PixelValve registers if we have to Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 063/105] drm/vc4: crtc: Move the CRTC initialisation to a separate function Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 064/105] drm/vc4: crtc: Change the HVS5 test for of_device_is_compatible Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 065/105] drm/vc4: crtc: Move the txp_armed function to the TXP Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 066/105] drm/vc4: txp: Turn the TXP into a CRTC of its own Maxime Ripard
2020-05-28 15:51   ` Emil Velikov
2020-06-10 18:40     ` Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 067/105] drm/vc4: crtc: Remove the feed_txp tests Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 068/105] drm/vc4: hdmi: Use debugfs private field Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 069/105] drm/vc4: hdmi: Move structure to header Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 070/105] drm/vc4: hdmi: rework connectors and encoders Maxime Ripard
2020-05-27 18:41   ` Eric Anholt
2020-06-02 15:54     ` Maxime Ripard
2020-06-03 17:32       ` Stefan Wahren
2020-06-05 14:35         ` Maxime Ripard
2020-06-06  8:06           ` Stefan Wahren
2020-06-11 13:34             ` Maxime Ripard
2020-06-14 16:16               ` Stefan Wahren
2020-06-16 12:30                 ` Maxime Ripard
2020-06-16 19:09                   ` Stefan Wahren
2020-05-27 15:48 ` [PATCH v3 071/105] drm/vc4: hdmi: Remove DDC argument to connector_init Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 072/105] drm/vc4: hdmi: Rename hdmi to vc4_hdmi Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 073/105] drm/vc4: hdmi: Move accessors " Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 074/105] drm/vc4: hdmi: Use local vc4_hdmi directly Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 075/105] drm/vc4: hdmi: Add container_of macros for encoders and connectors Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 076/105] drm/vc4: hdmi: Pass vc4_hdmi to CEC code Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 077/105] drm/vc4: hdmi: Remove vc4_dev hdmi pointer Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 078/105] drm/vc4: hdmi: Remove vc4_hdmi_connector Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 079/105] drm/vc4: hdmi: Introduce resource init and variant Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 080/105] drm/vc4: hdmi: Implement a register layout abstraction Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 081/105] drm/vc4: hdmi: Add reset callback Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 082/105] drm/vc4: hdmi: Add PHY init and disable function Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 083/105] drm/vc4: hdmi: Add PHY RNG enable / " Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 084/105] drm/vc4: hdmi: Add a CSC setup callback Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 085/105] drm/vc4: hdmi: Store the encoder type in the variant structure Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 086/105] drm/vc4: hdmi: Deal with multiple debugfs files Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 087/105] drm/vc4: hdmi: Move CEC init to its own function Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 088/105] drm/vc4: hdmi: Add CEC support flag Maxime Ripard
2020-05-27 15:48 ` [PATCH v3 089/105] drm/vc4: hdmi: Remove unused CEC_CLOCK_DIV define Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 090/105] drm/vc4: hdmi: Rename drm_encoder pointer in mode_valid Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 091/105] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 092/105] drm/vc4: hdmi: Use clk_set_min_rate instead Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 093/105] drm/vc4: hdmi: Use reg-names to retrieve the HDMI audio registers Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 094/105] drm/vc4: hdmi: Reset audio infoframe on encoder_enable if previously streaming Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 095/105] drm/vc4: hdmi: Set the b-frame marker to the match ALSA's default Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 096/105] drm/vc4: hdmi: Add audio-related callbacks Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 097/105] drm/vc4: hdmi: Deal with multiple ALSA cards Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 098/105] drm/vc4: hdmi: Remove register dumps in enable Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 099/105] drm/vc4: hdmi: Always recenter the HDMI FIFO Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 100/105] drm/vc4: hdmi: Implement finer-grained hooks Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 101/105] drm/vc4: hdmi: Do the VID_CTL configuration at once Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 102/105] drm/vc4: hdmi: Switch to blank pixels when disabled Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 103/105] drm/vc4: hdmi: Support the BCM2711 HDMI controllers Maxime Ripard
2020-05-27 15:49 ` [PATCH v3 104/105] dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI controllers bindings Maxime Ripard
2020-05-29 18:18   ` Rob Herring
2020-06-02 15:08     ` Maxime Ripard
2020-06-08 23:01       ` Rob Herring
2020-05-27 15:49 ` [PATCH v3 105/105] ARM: dts: bcm2711: Enable the display pipeline Maxime Ripard
2020-06-03 20:11   ` Stefan Wahren
2020-06-02 20:12 ` [PATCH v3 000/105] drm/vc4: Support BCM2711 Display Pipeline Stefan Wahren

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