linux-kernel - [RFC PATCH v3 1/4] ARM: dts: imx28: reparent gpmi clock to ref

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Message-Id: <20220117161755.1863579-2-dario.binacchi@amarulasolutions.com>
Date:   Mon, 17 Jan 2022 17:17:52 +0100
From:   Dario Binacchi <dario.binacchi@...rulasolutions.com>
To:     linux-kernel@...r.kernel.org
Cc:     Michael Trimarchi <michael@...rulasolutions.com>,
        Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH v3 1/4] ARM: dts: imx28: reparent gpmi clock to ref_gpmi

Since ref_gpmi is sourced from pll0 (480MHz), It allows the GPMI
controller to manage High-Speed NAND Timing (edo mode 3,4 and 5).

Co-developed-by: Michael Trimarchi <michael@...rulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>


---

(no changes since v2)

Changes in v2:
- Reparent by device tree instead of code (drivers/clk/mxs/clk-imx28.c).
  Suggested by Stephen Boyd.

 arch/arm/boot/dts/imx28.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 84d0176d5193..130b4145af82 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -110,6 +110,8 @@ gpmi: nand-controller@...0c000 {
 				interrupt-names = "bch";
 				clocks = <&clks 50>;
 				clock-names = "gpmi_io";
+				assigned-clocks = <&clks 13>;
+				assigned-clock-parents = <&clks 10>;
 				dmas = <&dma_apbh 4>;
 				dma-names = "rx-tx";
 				status = "disabled";
-- 
2.32.0