From: Chanwoo Choi <cw00.choi@samsung.com>
To: Leonard Crestez <leonard.crestez@nxp.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: "MyungJoo Ham" <myungjoo.ham@samsung.com>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"Shawn Guo" <shawnguo@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Michael Turquette" <mturquette@baylibre.com>,
"Artur Świgoń" <a.swigon@partner.samsung.com>,
"Saravana Kannan" <saravanak@google.com>,
"Angus Ainslie" <angus@akkea.ca>,
"Martin Kepplinger" <martink@posteo.de>,
"Matthias Kaehlcke" <mka@chromium.org>,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"Alexandre Bailon" <abailon@baylibre.com>,
"Georgi Djakov" <georgi.djakov@linaro.org>,
"Dong Aisheng" <aisheng.dong@nxp.com>,
"Abel Vesa" <abel.vesa@nxp.com>, "Jacky Bai" <ping.bai@nxp.com>,
"Anson Huang" <Anson.Huang@nxp.com>,
"Fabio Estevam" <fabio.estevam@nxp.com>,
"Viresh Kumar" <viresh.kumar@linaro.org>,
devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
linux-clk@vger.kernel.org, linux-imx@nxp.com,
kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 3/5] dt-bindings: memory: Add bindings for imx8m ddr controller
Date: Wed, 13 Nov 2019 11:38:09 +0900 [thread overview]
Message-ID: <296a7e8a-78e5-62bb-e4e1-8f5a9095cb6d@samsung.com> (raw)
In-Reply-To: <872fb6e3117955b679678280483f82b3d73dd376.1573595319.git.leonard.crestez@nxp.com>
On 11/13/19 6:50 AM, Leonard Crestez wrote:
> Add devicetree bindings for the i.MX DDR Controller on imx8m series
> chips. It supports dynamic frequency switching between multiple data
> rates and this is exposed to Linux via the devfreq subsystem.
>
> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
> ---
> .../memory-controllers/fsl/imx8m-ddrc.yaml | 57 +++++++++++++++++++
> 1 file changed, 57 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
>
> diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
> new file mode 100644
> index 000000000000..7c98e3509f75
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/memory-controllers/fsl/imx8m-ddrc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: i.MX8M DDR Controller
> +
> +maintainers:
> + - Leonard Crestez <leonard.crestez@nxp.com>
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - fsl,imx8mn-ddrc
> + - fsl,imx8mm-ddrc
> + - fsl,imx8mq-ddrc
> + - const: fsl,imx8m-ddrc
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 4
> +
> + clock-names:
> + items:
> + - const: core
> + - const: pll
> + - const: alt
> + - const: apb
> +
> + operating-points-v2: true
> + opp-table: true
> +
> +required:
> + - reg
> + - compatible
> + - clocks
> + - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/imx8mm-clock.h>
> + ddrc: memory-controller@3d400000 {
> + compatible = "fsl,imx8mm-ddrc", "fsl,imx8m-ddrc";
> + reg = <0x3d400000 0x400000>;
The probe() function doesn't get the IORESOURCE_MEM from dt?
Is it needed?
> + clock-names = "core", "pll", "alt", "apb";
> + clocks = <&clk IMX8MM_CLK_DRAM_CORE>,
> + <&clk IMX8MM_DRAM_PLL>,
> + <&clk IMX8MM_CLK_DRAM_ALT>,
> + <&clk IMX8MM_CLK_DRAM_APB>;
> + operating-points-v2 = <&ddrc_opp_table>;
> + };
>
--
Best Regards,
Chanwoo Choi
Samsung Electronics
next prev parent reply other threads:[~2019-11-13 2:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-12 21:50 [PATCH v5 0/5] PM / devfreq: Add dynamic scaling for imx8m ddr controller Leonard Crestez
2019-11-12 21:50 ` [PATCH v5 1/5] clk: imx8m: Set CLK_GET_RATE_NOCACHE on dram clocks Leonard Crestez
2019-11-12 21:50 ` [PATCH v5 2/5] clk: imx: Mark dram pll on 8mm and 8mn with CLK_GET_RATE_NOCACHE Leonard Crestez
2019-11-13 7:29 ` Peng Fan
2019-11-13 12:02 ` Leonard Crestez
2019-11-12 21:50 ` [PATCH v5 3/5] dt-bindings: memory: Add bindings for imx8m ddr controller Leonard Crestez
2019-11-13 2:38 ` Chanwoo Choi [this message]
2019-11-13 12:35 ` Leonard Crestez
2019-11-14 1:07 ` Chanwoo Choi
2019-11-12 21:50 ` [PATCH v5 4/5] PM / devfreq: Add dynamic scaling " Leonard Crestez
2019-11-13 2:30 ` Chanwoo Choi
2019-11-13 6:28 ` Chanwoo Choi
2019-11-13 13:10 ` Leonard Crestez
2019-11-14 1:21 ` Chanwoo Choi
2019-11-14 16:01 ` Leonard Crestez
2019-11-13 14:07 ` kbuild test robot
2019-11-13 14:07 ` [RFC PATCH] PM / devfreq: clk_get_parent_by_index() can be static kbuild test robot
2019-11-14 1:23 ` Chanwoo Choi
2019-11-12 21:50 ` [PATCH v5 5/5] arm64: dts: imx8m: Add ddr controller nodes Leonard Crestez
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