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From: Stephen Boyd <sboyd@kernel.org>
To: Dong Aisheng <aisheng.dong@nxp.com>, linux-clk@vger.kernel.org
Cc: Dong Aisheng <aisheng.dong@nxp.com>,
	devicetree@vger.kernel.org, mturquette@baylibre.com,
	Rob Herring <robh+dt@kernel.org>,
	linux-imx@nxp.com, kernel@pengutronix.de, fabio.estevam@nxp.com,
	shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V4 01/11] dt-bindings: firmware: imx-scu: new binding to parse clocks from device tree
Date: Fri, 06 Sep 2019 09:56:44 -0700	[thread overview]
Message-ID: <20190906165645.9253120838@mail.kernel.org> (raw)
In-Reply-To: <1566299605-15641-2-git-send-email-aisheng.dong@nxp.com>

Quoting Dong Aisheng (2019-08-20 04:13:15)
> There's a few limitations on the original one cell clock binding
> (#clock-cells = <1>) that we have to define some SW clock IDs for device
> tree to reference. This may cause troubles if we want to use common
> clock IDs for multi platforms support when the clock of those platforms
> are mostly the same.
> e.g. Current clock IDs name are defined with SS prefix.
> 
> However the device may reside in different SS across CPUs, that means the
> SS prefix may not valid anymore for a new SoC. Furthermore, the device
> availability of those clocks may also vary a bit.
> 
> For such situation, we want to eliminate the using of SW Clock IDs and
> change to use a more close to HW one instead.
> For SCU clocks usage, only two params required: Resource id + Clock Type.
> Both parameters are platform independent. So we could use two cells binding
> to pass those parameters,
> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Stephen Boyd <sboyd@kernel.org>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Sascha Hauer <kernel@pengutronix.de>
> Cc: Michael Turquette <mturquette@baylibre.com>
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
> ---

Reviewed-by: Stephen Boyd <sboyd@kernel.org>


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  parent reply	other threads:[~2019-09-06 16:56 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-20 11:13 [PATCH V4 00/11] clk: imx8: add new clock binding for better pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 01/11] dt-bindings: firmware: imx-scu: new binding to parse clocks from device tree Dong Aisheng
2019-08-24 19:19   ` Shawn Guo
2019-08-26  3:24     ` Aisheng Dong
2019-08-27 17:04   ` Rob Herring
2019-09-06 16:56   ` Stephen Boyd [this message]
2019-08-20 11:13 ` [PATCH V4 02/11] dt-bindings: clock: imx-lpcg: add support " Dong Aisheng
2019-08-24 19:21   ` Shawn Guo
2019-08-26  3:14     ` Aisheng Dong
2019-08-26  3:21     ` Aisheng Dong
2019-08-27 17:05   ` Rob Herring
2019-09-06 17:00   ` Stephen Boyd
2019-08-20 11:13 ` [PATCH V4 03/11] clk: imx: scu: add two cells binding support Dong Aisheng
2019-09-06 17:06   ` Stephen Boyd
2019-09-09 10:23     ` Dong Aisheng
2019-09-16 18:44       ` Stephen Boyd
2019-11-17 12:07         ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 04/11] clk: imx: scu: bypass cpu power domains Dong Aisheng
2019-09-06 17:07   ` Stephen Boyd
2019-09-09 10:24     ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 05/11] clk: imx: scu: allow scu clk to take device pointer Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 06/11] clk: imx: scu: add runtime pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 07/11] clk: imx: scu: add suspend/resume support Dong Aisheng
2019-09-06 17:09   ` Stephen Boyd
2019-09-09 10:35     ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 08/11] clk: imx: imx8qxp-lpcg: add parsing clocks from device tree Dong Aisheng
2019-09-06 17:13   ` Stephen Boyd
2019-09-09 11:23     ` Dong Aisheng
2019-09-16 18:45       ` Stephen Boyd
2019-11-17 12:08         ` Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 09/11] clk: imx: lpcg: allow lpcg clk to take device pointer Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 10/11] clk: imx: clk-imx8qxp-lpcg: add runtime pm support Dong Aisheng
2019-08-20 11:13 ` [PATCH V4 11/11] clk: imx: lpcg: add suspend/resume support Dong Aisheng
2019-09-06 17:14   ` Stephen Boyd
2019-09-09 11:39     ` Dong Aisheng
2019-09-09 12:21 ` [PATCH V4 00/11] clk: imx8: add new clock binding for better pm support Oliver Graute

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