From: Dominique MARTINET <dominique.martinet@atmark-techno.com>
To: Adam Ford <aford173@gmail.com>, Lucas Stach <l.stach@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org, marex@denx.de,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>, Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>, Vinod Koul <vkoul@kernel.org>,
Kishon Vijay Abraham I <kishon@kernel.org>,
Liu Ying <victor.liu@nxp.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-phy@lists.infradead.org,
Makoto Sato <makoto.sato@atmark-techno.com>
Subject: Re: drm/bridge/imx8mp-hdmi-tx: Allow inexact pixel clock frequencies (Was: [PATCH V8 10/12] drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI)
Date: Tue, 18 Jun 2024 09:04:44 +0900 [thread overview]
Message-ID: <ZnDPHN_sSaWR7KKp@atmark-techno.com> (raw)
In-Reply-To: <ZnDKovBokBu5D_eb@atmark-techno.com>
Dominique MARTINET wrote on Tue, Jun 18, 2024 at 08:45:38AM +0900:
> I'm thinking the last few values just affect a very small % of the
> values, but would need to check with a proper scope if I can get a hold
> of the clock line...
> Does any of you happen to have any datasheet for these registers,
> or should we consider them to be magic values?
Answering to myself on this point, the registers are properly described
in the iMX8MP reference manual...
I don't make much sense of it at this point (what's SDC..?), but I guess
it does sound likely we could generate the values with some work.
I'll wait for replies a bit first in case one of you understands this
better than I (which is quite likely!), but can give this a few more
hours to help.
--
Dominique
next prev parent reply other threads:[~2024-06-18 0:05 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-03 16:52 [PATCH V8 00/12] soc: imx8mp: Add support for HDMI Adam Ford
2024-02-03 16:52 ` [PATCH V8 01/12] dt-bindings: phy: add binding for the i.MX8MP HDMI PHY Adam Ford
2024-02-06 17:34 ` Luca Ceresoli
2024-02-03 16:52 ` [PATCH V8 02/12] phy: freescale: add Samsung " Adam Ford
2024-02-03 17:12 ` Christophe JAILLET
2024-02-04 9:23 ` Dmitry Baryshkov
2024-02-05 8:17 ` Marco Felsch
2024-02-06 3:39 ` Adam Ford
2024-02-06 17:35 ` Luca Ceresoli
2024-02-03 16:52 ` [PATCH V8 03/12] dt-bindings: soc: imx: add missing clock and power-domains to imx8mp-hdmi-blk-ctrl Adam Ford
2024-02-05 19:19 ` Rob Herring
2024-02-03 16:52 ` [PATCH V8 04/12] pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain Adam Ford
2024-02-03 16:52 ` [PATCH V8 05/12] arm64: dts: imx8mp: add HDMI power-domains Adam Ford
2024-02-05 7:26 ` Alexander Stein
2024-02-06 2:25 ` Adam Ford
2024-02-03 16:52 ` [PATCH V8 06/12] arm64: dts: imx8mp: add HDMI irqsteer Adam Ford
2024-02-04 12:00 ` Francesco Dolcini
2024-02-04 14:54 ` Adam Ford
2024-02-05 7:26 ` Alexander Stein
2024-02-03 16:52 ` [PATCH V8 07/12] dt-bindings: display: imx: add binding for i.MX8MP HDMI PVI Adam Ford
2024-02-06 17:35 ` Luca Ceresoli
2024-02-03 16:52 ` [PATCH V8 08/12] drm/bridge: imx: add driver for HDMI TX Parallel Video Interface Adam Ford
2024-02-06 17:06 ` Nathan Chancellor
2024-02-06 18:50 ` Adam Ford
2024-02-06 18:52 ` Nathan Chancellor
2024-02-03 16:52 ` [PATCH V8 09/12] dt-bindings: display: imx: add binding for i.MX8MP HDMI TX Adam Ford
2024-02-05 11:17 ` Neil Armstrong
2024-02-05 19:23 ` Rob Herring
2024-02-06 17:35 ` Luca Ceresoli
2024-02-16 9:05 ` Alexander Stein
2024-02-16 9:37 ` Laurent Pinchart
2024-02-16 11:31 ` Adam Ford
2024-02-16 11:42 ` Alexander Stein
2024-02-03 16:52 ` [PATCH V8 10/12] drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI Adam Ford
2024-02-06 17:35 ` Luca Ceresoli
2024-06-17 6:16 ` drm/bridge/imx8mp-hdmi-tx: Allow inexact pixel clock frequencies (Was: [PATCH V8 10/12] drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI) Dominique MARTINET
2024-06-17 13:28 ` Adam Ford
2024-06-17 23:45 ` Dominique MARTINET
2024-06-18 0:04 ` Dominique MARTINET [this message]
2024-06-17 16:32 ` Lucas Stach
2024-08-15 8:19 ` Frieder Schrempf
2024-08-21 2:49 ` Adam Ford
2024-08-21 3:57 ` Dominique MARTINET
2024-08-21 12:45 ` Adam Ford
2024-08-22 1:59 ` Adam Ford
2024-08-27 0:25 ` Adam Ford
2024-08-27 7:00 ` Frieder Schrempf
2024-08-27 7:26 ` Dominique MARTINET
2024-02-03 16:52 ` [PATCH V8 11/12] arm64: dts: imx8mp: add HDMI display pipeline Adam Ford
2024-02-05 7:29 ` Alexander Stein
2024-02-03 16:52 ` [PATCH V8 12/12] arm64: defconfig: Enable DRM_IMX8MP_DW_HDMI_BRIDGE as module Adam Ford
2024-02-05 11:19 ` (subset) [PATCH V8 00/12] soc: imx8mp: Add support for HDMI Neil Armstrong
2024-02-06 8:15 ` Neil Armstrong
2024-02-15 15:05 ` Joao Paulo Goncalves
2024-03-25 21:48 ` Tommaso Merciai
2024-03-25 22:03 ` Laurent Pinchart
2024-03-26 7:46 ` Tommaso Merciai
2024-03-26 11:43 ` Adam Ford
2024-03-26 12:00 ` Tommaso Merciai
2024-10-25 8:05 ` imx8mp: HDMI display blank/black problems mailinglist1
2024-10-30 9:01 ` Frieder Schrempf
2024-10-30 17:28 ` Adam Ford
2024-10-30 20:20 ` Saravana Kannan
2025-03-19 7:52 ` Frieder Schrempf
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