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Date: Sun, 4 Mar 2012 18:42:29 +0100 From: Andrew Lunn <andrew@...n.ch> To: Mike Turquette <mturquette@...aro.org> Cc: Russell King <linux@....linux.org.uk>, patches@...aro.org, linaro-dev@...ts.linaro.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Mike Turquette <mturquette@...com>, Jeremy Kerr <jeremy.kerr@...onical.com>, Thomas Gleixner <tglx@...utronix.de>, Arnd Bergman <arnd.bergmann@...aro.org>, Paul Walmsley <paul@...an.com>, Shawn Guo <shawn.guo@...escale.com>, Sascha Hauer <s.hauer@...gutronix.de>, Jamie Iles <jamie@...ieiles.com>, Richard Zhao <richard.zhao@...aro.org>, Saravana Kannan <skannan@...eaurora.org>, Magnus Damm <magnus.damm@...il.com>, Rob Herring <rob.herring@...xeda.com>, Mark Brown <broonie@...nsource.wolfsonmicro.com>, Linus Walleij <linus.walleij@...ricsson.com>, Stephen Boyd <sboyd@...eaurora.org>, Amit Kucheria <amit.kucheria@...aro.org>, Deepak Saxena <dsaxena@...aro.org>, Grant Likely <grant.likely@...retlab.ca>, Andrew Lunn <andrew@...n.ch> Subject: Re: [PATCH v5 4/4] clk: basic clock hardware types On Sat, Mar 03, 2012 at 12:29:01AM -0800, Mike Turquette wrote: > Many platforms support simple gateable clocks, fixed-rate clocks, > adjustable divider clocks and multi-parent multiplexer clocks. > > This patch introduces basic clock types for the above-mentioned hardware > which share some common characteristics. Hi Mike These basic clocks don't allow the use of prepare/unprepare, from the side of the clock provider. I think i need this. The Orion Kirkwood SoC has clock gating for most of its on chip peripherals, which the other older Orion devices don't have. The SATA and PCIe also allows the PHY to be shut down, again which older Orion devices don't have. The current code links the clock and the PHY together, shutting both down are the same time. So i would like to perform the PHY shutdown in the unprepare() function of the clk driver. Is allowing to pass prepare/unprepare functions to basic clocks something you want to support? If i prepare a patch would you consider it? Thanks Andrew -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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