[v2,4/6] arm64: dts: imx8mq: add snvs clock to pwrkey
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Message ID 20200225161201.1975-4-git@andred.net
State New
Headers show
Series
  • [v2,1/6] dt-bindings: crypto: fsl-sec4: add snvs clock to pwrkey
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Commit Message

André Draszik Feb. 25, 2020, 4:11 p.m. UTC
On i.MX8MM, the SNVS requires a clock. This is similar to the clock
bound to the SNVS RTC node, but if the SNVS RTC driver isn't enabled,
then SNVS doesn't work, and as such the pwrkey driver doesn't
work (i.e. hangs the kernel, as the clock isn't enabled).

Also see commit ec2a844ef7c1
("ARM: dts: imx7s: add snvs rtc clock")
for a similar fix.

Signed-off-by: André Draszik <git@andred.net>
Cc: "Horia Geantă" <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Anson Huang <Anson.Huang@nxp.com>
Cc: Robin Gong <yibin.gong@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-input@vger.kernel.org

---
v2: new patch
---
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 2 ++
 1 file changed, 2 insertions(+)

Comments

Shawn Guo March 11, 2020, 6:47 a.m. UTC | #1
On Tue, Feb 25, 2020 at 04:11:59PM +0000, André Draszik wrote:
> On i.MX8MM, the SNVS requires a clock. This is similar to the clock
> bound to the SNVS RTC node, but if the SNVS RTC driver isn't enabled,
> then SNVS doesn't work, and as such the pwrkey driver doesn't
> work (i.e. hangs the kernel, as the clock isn't enabled).
> 
> Also see commit ec2a844ef7c1
> ("ARM: dts: imx7s: add snvs rtc clock")
> for a similar fix.
> 
> Signed-off-by: André Draszik <git@andred.net>

Applied, thanks.

Patch
diff mbox series

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 7f9319452b58..e4ab037183d7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -501,6 +501,8 @@ 
 					compatible = "fsl,sec-v4.0-pwrkey";
 					regmap = <&snvs>;
 					interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&clk IMX8MQ_CLK_SNVS_ROOT>;
+					clock-names = "snvs-pwrkey";
 					linux,keycode = <KEY_POWER>;
 					wakeup-source;
 					status = "disabled";