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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Jagan Teki <jagan@amarulasolutions.com>
Cc: Chen-Yu Tsai <wens@csie.org>, Icenowy Zheng <icenowy@aosc.io>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Vasily Khoruzhick <anarsoul@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	David Airlie <airlied@linux.ie>,
	dri-devel@lists.freedesktop.org,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-clk@vger.kernel.org,
	Michael Trimarchi <michael@amarulasolutions.com>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: Re: [PATCH v2 12/15] clk: sunxi-ng: a64: Add min and max rate for PLL_MIPI
Date: Wed, 24 Oct 2018 19:13:34 +0100	[thread overview]
Message-ID: <20181024181334.lul7ta7ijluwfb7v@flea> (raw)
In-Reply-To: <20181023155035.9101-13-jagan@amarulasolutions.com>

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On Tue, Oct 23, 2018 at 09:20:32PM +0530, Jagan Teki wrote:
> A64 manual say PLL_MIPI rates are 500MHz to 1.4GHz, but
> using minimum 500MHz can't release the clock and which
> is not working.
>
> So use working minimum rate as 300MHz which is tested on
> Bananapi DSI panel.

I'm not quite sure what you mean by that. What do you mean by "500MHz
can't release the clock"? Why would 300MHz work better then? Should be
avoid reaching 500MHz if it's a frequency in the valid range?

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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  parent reply	other threads:[~2018-10-24 18:13 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-23 15:50 [PATCH v2 00/15] drm/sun4i: Allwinner A64 MIPI-DSI support Jagan Teki
2018-10-23 15:50 ` [PATCH v2 01/15] clk: sunxi-ng: a64: Fix gate bit of DSI DPHY Jagan Teki
2018-10-24  8:48   ` Stephen Boyd
2018-10-23 15:50 ` [PATCH v2 02/15] clk: sunxi-ng: Add check for minimal rate to NKM PLLs Jagan Teki
2018-10-24  8:48   ` Stephen Boyd
2018-10-24 18:04   ` Maxime Ripard
2018-10-25 10:55     ` Jagan Teki
2018-10-29  8:58       ` Maxime Ripard
2018-10-29 12:40         ` [linux-sunxi] " Jagan Teki
2018-11-05 10:11           ` Maxime Ripard
2018-10-23 15:50 ` [PATCH v2 03/15] clk: sunxi-ng: Add check for maximum " Jagan Teki
2018-10-23 17:10   ` Vasily Khoruzhick
2018-10-24  8:48   ` Stephen Boyd
2018-10-23 15:50 ` [PATCH v2 04/15] drm/sun4i: sun6i_mipi_dsi: Add Allwinner A64 MIPI DSI support Jagan Teki
2018-10-24 18:06   ` Maxime Ripard
2018-10-25 11:02     ` Jagan Teki
2018-10-29  9:00       ` Maxime Ripard
2018-10-23 15:50 ` [PATCH v2 05/15] dt-bindings: sun6i-dsi: Add compatible for A64 MIPI DSI Jagan Teki
2018-10-23 15:50 ` [PATCH v2 06/15] drm/sun4i: sun6i_mipi_dsi: Add DSI Generic short write 2 param transfer Jagan Teki
2018-10-23 15:50 ` [PATCH v2 07/15] drm/sun4i: sun6i_mipi_dsi: Fix VBP size calculation Jagan Teki
2018-10-23 15:50 ` [PATCH v2 08/15] drm/sun4i: sun6i_mipi_dsi: Fix TCON DRQ set bits Jagan Teki
2018-10-23 15:50 ` [PATCH v2 09/15] drm/sun4i: sun6i_mipi_dsi: Refactor vertical video start delay Jagan Teki
2018-10-23 15:50 ` [PATCH v2 10/15] dt-bindings: panel: Add Bananapi S070WV20-CT16 ICN6211 MIPI-DSI to RGB bridge Jagan Teki
2018-10-24 18:07   ` Maxime Ripard
2018-10-24 20:36     ` Chen-Yu Tsai
2018-10-23 15:50 ` [PATCH v2 11/15] drm/panel: " Jagan Teki
2018-10-23 15:50 ` [PATCH v2 12/15] clk: sunxi-ng: a64: Add min and max rate for PLL_MIPI Jagan Teki
2018-10-24  8:49   ` Stephen Boyd
2018-10-24 18:13   ` Maxime Ripard [this message]
2018-10-25 15:51     ` Jagan Teki
2018-10-29  9:08       ` Maxime Ripard
2018-10-29 15:08         ` Jagan Teki
2018-11-05 12:42           ` Maxime Ripard
2018-10-23 15:50 ` [PATCH v2 13/15] dt-bindings: sun6i-dsi: Add compatible for A64 DPHY Jagan Teki
2018-10-24 18:09   ` Maxime Ripard
2018-10-25 12:52     ` Jagan Teki
2018-10-29  9:01       ` Maxime Ripard
2018-10-23 15:50 ` [PATCH v2 14/15] arm64: dts: allwinner: a64: Add DSI pipeline Jagan Teki
2018-10-24 18:10   ` Maxime Ripard
2018-10-25 13:21     ` Jagan Teki
2018-10-29  9:01       ` Maxime Ripard
2018-10-23 15:50 ` [PATCH v2 15/15] arm64: dts: allwinner: bananapi-m64: Bananapi S070WV20-CT16 DSI panel Jagan Teki
2018-10-24 18:11   ` Maxime Ripard
2018-10-24 20:36     ` Chen-Yu Tsai

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