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From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>
Cc: "kernel@pengutronix.de" <kernel@pengutronix.de>,
	dl-linux-imx <linux-imx@nxp.com>, Ying Liu <victor.liu@nxp.com>,
	Peng Fan <peng.fan@nxp.com>,
	"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
	Pankaj Bansal <pankaj.bansal@nxp.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 5/6] can: flexcan: add CAN wakeup function for i.MX8QM
Date: Fri, 16 Oct 2020 10:00:31 +0000	[thread overview]
Message-ID: <DB8PR04MB67952A058934D5013946EE97E6030@DB8PR04MB6795.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <DB8PR04MB6795DEDFA271889A162539EFE6030@DB8PR04MB6795.eurprd04.prod.outlook.com>


Hi Marc,

[...]
> > > +static int flexcan_stop_mode_enable_scfw(struct flexcan_priv *priv,
> > > +bool enabled) {
> > > +	u8 idx = priv->can_idx;
> > > +	u32 rsrc_id, val;
> > > +
> > > +	if (idx == 0)
> > > +		rsrc_id = IMX_SC_R_CAN_0;
> > > +	else if (idx == 1)
> > > +		rsrc_id = IMX_SC_R_CAN_1;
> > > +	else
> > > +		rsrc_id = IMX_SC_R_CAN_2;
> >
> > Can you introduce something like and make use of it:
> >
> > #define IMX_SC_R_CAN(x)			(105 + (x))
> OK.

I thought it over again, from my point of view, use macro here directly could be more intuitive, and can achieve a direct jump.
If change to above wrapper, on the contrary make confusion, and generate the magic number 105. ☹

> > > +
> > > +	if (enabled)
> > > +		val = 1;
> > > +	else
> > > +		val = 0;
> > > +
> > > +	/* stop mode request via scu firmware */
> > > +	return imx_sc_misc_set_control(priv->sc_ipc_handle, rsrc_id,
> > > +IMX_SC_C_IPG_STOP, val); }

We still need use IMX_SC_C_IPG_STOP, why not be consistent?

Best Regards,
Joakim Zhang

  reply	other threads:[~2020-10-16 10:00 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-16 13:43 [PATCH 0/6] can: flexcan: add stop mode support for i.MX8QM Joakim Zhang
2020-10-16 13:43 ` [PATCH 1/6] firmware: imx: always export SCU symbols Joakim Zhang
2020-10-16 13:43 ` [PATCH 2/6] dt-bindings: can: flexcan: fix fsl,clk-source property Joakim Zhang
2020-10-16  6:21   ` Marc Kleine-Budde
2020-10-16  6:52     ` Joakim Zhang
2020-10-16 13:43 ` [PATCH 3/6] dt-bindings: can: flexcan: add fsl,can-index property to indicate a resource Joakim Zhang
2020-10-16  6:20   ` [PATCH 3/6] dt-bindings: can: flexcan: add fsl, can-index " Marc Kleine-Budde
2020-10-16  6:52     ` Joakim Zhang
2020-10-16  7:47       ` Marc Kleine-Budde
2020-10-16 13:43 ` [PATCH 4/6] can: flexcan: rename macro FLEXCAN_QUIRK_SETUP_STOP_MODE -> FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR Joakim Zhang
2020-10-16  6:22   ` Marc Kleine-Budde
2020-10-16 13:43 ` [PATCH 5/6] can: flexcan: add CAN wakeup function for i.MX8QM Joakim Zhang
2020-10-16  5:59   ` Marc Kleine-Budde
2020-10-16  6:46     ` Joakim Zhang
2020-10-16  7:44       ` Marc Kleine-Budde
2020-10-16  6:18   ` Marc Kleine-Budde
2020-10-16  6:51     ` Joakim Zhang
2020-10-16 10:00       ` Joakim Zhang [this message]
2020-10-16 10:40         ` Marc Kleine-Budde
2020-10-16 10:57           ` Joakim Zhang
2020-10-16 13:43 ` [PATCH 6/6] can: flexcan: fix ECC function on LS1021A/LX2160A Joakim Zhang
2020-10-16  6:04   ` Marc Kleine-Budde
2020-10-16  6:49     ` Joakim Zhang

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