linux-kernel - RE: [PATCH v7 5/8] i3c: target: add svc target controller support

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Date: Wed, 6 Mar 2024 16:01:17 +0000
From: Joshua Yeong <joshua.yeong@...rfivetech.com>
To: Frank Li <Frank.Li@....com>
CC: "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
	"conor.culhane@...vaco.com" <conor.culhane@...vaco.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"ilpo.jarvinen@...ux.intel.com" <ilpo.jarvinen@...ux.intel.com>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>, "jirislaby@...nel.org"
	<jirislaby@...nel.org>, "joe@...ches.com" <joe@...ches.com>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"krzysztof.kozlowski@...aro.org" <krzysztof.kozlowski@...aro.org>,
	"linux-i3c@...ts.infradead.org" <linux-i3c@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	"miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>, "robh@...nel.org"
	<robh@...nel.org>, "zbigniew.lukwinski@...ux.intel.com"
	<zbigniew.lukwinski@...ux.intel.com>
Subject: RE: [PATCH v7 5/8] i3c: target: add svc target controller support

Hi Frank,

> -----Original Message-----
> From: linux-i3c <linux-i3c-bounces@...ts.infradead.org> On Behalf Of Frank Li
> Sent: Tuesday, February 6, 2024 7:33 AM
> To: frank.li@....com
> Cc: alexandre.belloni@...tlin.com; conor.culhane@...vaco.com;
> devicetree@...r.kernel.org; gregkh@...uxfoundation.org;
> ilpo.jarvinen@...ux.intel.com; imx@...ts.linux.dev; jirislaby@...nel.org;
> joe@...ches.com; krzysztof.kozlowski+dt@...aro.org;
> krzysztof.kozlowski@...aro.org; linux-i3c@...ts.infradead.org; linux-
> kernel@...r.kernel.org; linux-serial@...r.kernel.org;
> miquel.raynal@...tlin.com; robh@...nel.org;
> zbigniew.lukwinski@...ux.intel.com
> Subject: [PATCH v7 5/8] i3c: target: add svc target controller support
> 
> Add Silvaco I3C target controller support
> 
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
> 
> Notes:
>     Change from v2 to v3
>     - fix build warning
> 
>  drivers/i3c/master/Makefile         |   2 +-
>  drivers/i3c/master/svc-i3c-main.c   |  35 +-
>  drivers/i3c/master/svc-i3c-target.c | 776

I think putting target mode files under "master" might not make sense. We might have to
consider that we may have a "secondary master" mode. Some other ways of splitting
or handling of target mode is needed here.

..

> +
> +#define I3C_SCONFIG	0x4
> +#define   I3C_SCONFIG_SLVENA_MASK	BIT(0)
> +#define	  I3C_SCONFIG_OFFLINE_MASK	BIT(9)
> +#define   I3C_SCONFIG_SADDR_MASK	GENMASK(31, 25)
> +
> +#define I3C_SSTATUS	0x8
> +#define	  I3C_SSTATUS_STNOTSTOP_MASK	BIT(0)
> +#define	  I3C_SSTATUS_STOP_MASK		BIT(10)
> +#define	  I3C_SSTATUS_RX_PEND_MASK	BIT(11)
> +#define   I3C_SSTATUS_TXNOTFULL_MASK	BIT(12)
> +#define	  I3C_SSTATUS_DACHG_MASK	BIT(13)
> +#define	  I3C_SSTATUS_EVDET_MASK	GENMASK(21, 20)
> +#define	  I3C_SSTATUS_EVDET_ACKED	0x3
> +#define	  I3C_SSTATUS_IBIDIS_MASK	BIT(24)
> +#define	  I3C_SSTATUS_HJDIS_MASK	BIT(27)
> +

There is couple of space formatting here that requires to be fixed.

Cheers,
Joshua