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From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Andy Yan <andy.yan@rock-chips.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>,
	Andy Yan <andyshrk@163.com>,
	heiko@sntech.de, hjc@rock-chips.com,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org,
	devicetree@vger.kernel.org, kever.yang@rock-chips.com,
	chris.obbard@collabora.com
Subject: Re: [PATCH 09/11] drm/rockchip: vop2: Add support for rk3588
Date: Thu, 16 Nov 2023 14:47:57 +0100	[thread overview]
Message-ID: <20231116134757.zu7axb6cvriqjm6y@mercury.elektranox.org> (raw)
In-Reply-To: <8f2ebc81-51c5-44d5-b27b-633a6cc85d0d@rock-chips.com>

[-- Attachment #1: Type: text/plain, Size: 1299 bytes --]

Hi,

On Thu, Nov 16, 2023 at 06:39:40PM +0800, Andy Yan wrote:
> > >   	vop2->sys_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
> > This already lacks an error check, shame on me...
> > 
> > > +	vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
> > > +	vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
> > > +	vop2->sys_pmu = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,pmu");
> > ... but please don't duplicate that.
> 
> It a little difficult to find a proper way to do the check, as not every soc need all these phandles.
> 
> Do i need check it per soc?

I suggest adding a u32 flags to struct vop2_data and then have
something like this:

if (vop2_data->flags & VOP2_HAS_VOP_GRF) {
    vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
    if (IS_ERR(vop2->vop_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vop_grf) "cannot get vop-grf");
}

if (vop2_data->flags & VOP2_HAS_VO1_GRF) {
    vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
    if (IS_ERR(vop2->vo1_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vo1_grf) "cannot get vo1-grf");
}

...

Greetings,

-- Sebastian

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WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Andy Yan <andy.yan@rock-chips.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>,
	Andy Yan <andyshrk@163.com>,
	heiko@sntech.de, hjc@rock-chips.com,
	dri-devel@lists.freedesktop.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org,
	devicetree@vger.kernel.org, kever.yang@rock-chips.com,
	chris.obbard@collabora.com
Subject: Re: [PATCH 09/11] drm/rockchip: vop2: Add support for rk3588
Date: Thu, 16 Nov 2023 14:47:57 +0100	[thread overview]
Message-ID: <20231116134757.zu7axb6cvriqjm6y@mercury.elektranox.org> (raw)
In-Reply-To: <8f2ebc81-51c5-44d5-b27b-633a6cc85d0d@rock-chips.com>


[-- Attachment #1.1: Type: text/plain, Size: 1299 bytes --]

Hi,

On Thu, Nov 16, 2023 at 06:39:40PM +0800, Andy Yan wrote:
> > >   	vop2->sys_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
> > This already lacks an error check, shame on me...
> > 
> > > +	vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
> > > +	vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
> > > +	vop2->sys_pmu = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,pmu");
> > ... but please don't duplicate that.
> 
> It a little difficult to find a proper way to do the check, as not every soc need all these phandles.
> 
> Do i need check it per soc?

I suggest adding a u32 flags to struct vop2_data and then have
something like this:

if (vop2_data->flags & VOP2_HAS_VOP_GRF) {
    vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
    if (IS_ERR(vop2->vop_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vop_grf) "cannot get vop-grf");
}

if (vop2_data->flags & VOP2_HAS_VO1_GRF) {
    vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
    if (IS_ERR(vop2->vo1_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vo1_grf) "cannot get vo1-grf");
}

...

Greetings,

-- Sebastian

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_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Andy Yan <andy.yan@rock-chips.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Sascha Hauer <s.hauer@pengutronix.de>,
	hjc@rock-chips.com, dri-devel@lists.freedesktop.org,
	kever.yang@rock-chips.com, linux-rockchip@lists.infradead.org,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	chris.obbard@collabora.com
Subject: Re: [PATCH 09/11] drm/rockchip: vop2: Add support for rk3588
Date: Thu, 16 Nov 2023 14:47:57 +0100	[thread overview]
Message-ID: <20231116134757.zu7axb6cvriqjm6y@mercury.elektranox.org> (raw)
In-Reply-To: <8f2ebc81-51c5-44d5-b27b-633a6cc85d0d@rock-chips.com>

[-- Attachment #1: Type: text/plain, Size: 1299 bytes --]

Hi,

On Thu, Nov 16, 2023 at 06:39:40PM +0800, Andy Yan wrote:
> > >   	vop2->sys_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
> > This already lacks an error check, shame on me...
> > 
> > > +	vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
> > > +	vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
> > > +	vop2->sys_pmu = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,pmu");
> > ... but please don't duplicate that.
> 
> It a little difficult to find a proper way to do the check, as not every soc need all these phandles.
> 
> Do i need check it per soc?

I suggest adding a u32 flags to struct vop2_data and then have
something like this:

if (vop2_data->flags & VOP2_HAS_VOP_GRF) {
    vop2->vop_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vop-grf");
    if (IS_ERR(vop2->vop_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vop_grf) "cannot get vop-grf");
}

if (vop2_data->flags & VOP2_HAS_VO1_GRF) {
    vop2->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,vo1-grf");
    if (IS_ERR(vop2->vo1_grf))
        return dev_err_probe(dev, PTR_ERR(vop2->vo1_grf) "cannot get vo1-grf");
}

...

Greetings,

-- Sebastian

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  reply	other threads:[~2023-11-16 13:48 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-14 11:25 [PATCH 00/11] Add VOP2 support on rk3588 Andy Yan
2023-11-14 11:25 ` Andy Yan
2023-11-14 11:25 ` Andy Yan
2023-11-14 11:27 ` [PATCH 01/11] drm/rockchip: move output interface related definition to rockchip_drm_drv.h Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27 ` [PATCH 02/11] Revert "drm/rockchip: vop2: Use regcache_sync() to fix suspend/resume" Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27 ` [PATCH 03/11] drm/rockchip: vop2: set half_block_en bit in all mode Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27 ` [PATCH 04/11] drm/rockchip: vop2: clear afbc en and transform bit for cluster window at linear mode Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27 ` [PATCH 05/11] drm/rockchip: vop2: Set YUV/RGB overlay mode Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:27   ` Andy Yan
2023-11-14 11:28 ` [PATCH 06/11] drm/rockchip: vop2: rename grf to sys_grf Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 11:28 ` [PATCH 07/11] dt-bindings: soc: rockchip: add rk3588 vop/vo syscon Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-16 19:26   ` Rob Herring
2023-11-16 19:26     ` Rob Herring
2023-11-16 19:26     ` Rob Herring
2023-11-14 11:28 ` [PATCH 08/11] dt-bindings: display: vop2: Add rk3588 support Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 13:44   ` Rob Herring
2023-11-14 13:44     ` Rob Herring
2023-11-14 13:44     ` Rob Herring
2023-11-14 21:54   ` Heiko Stübner
2023-11-14 21:54     ` Heiko Stübner
2023-11-14 21:54     ` Heiko Stübner
2023-11-15  2:45     ` Andy Yan
2023-11-15  2:45       ` Andy Yan
2023-11-15  2:45       ` Andy Yan
2023-11-14 11:28 ` [PATCH 09/11] drm/rockchip: vop2: Add support for rk3588 Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 11:28   ` Andy Yan
2023-11-14 23:34   ` Heiko Stübner
2023-11-14 23:34     ` Heiko Stübner
2023-11-14 23:34     ` Heiko Stübner
2023-11-15  2:02     ` Andy Yan
2023-11-15  2:02       ` Andy Yan
2023-11-15  2:02       ` Andy Yan
2023-11-15  8:24       ` Heiko Stübner
2023-11-15  8:24         ` Heiko Stübner
2023-11-15  8:24         ` Heiko Stübner
2023-11-15  9:08   ` Sascha Hauer
2023-11-15  9:08     ` Sascha Hauer
2023-11-15  9:08     ` Sascha Hauer
2023-11-16  7:24     ` Andy Yan
2023-11-16  7:24       ` Andy Yan
2023-11-16  7:24       ` Andy Yan
2023-11-16  7:50       ` Sascha Hauer
2023-11-16  7:50         ` Sascha Hauer
2023-11-16  7:50         ` Sascha Hauer
2023-11-16  8:00         ` Andy Yan
2023-11-16  8:00           ` Andy Yan
2023-11-16  8:00           ` Andy Yan
2023-11-16 10:39     ` Andy Yan
2023-11-16 10:39       ` Andy Yan
2023-11-16 10:39       ` Andy Yan
2023-11-16 13:47       ` Sebastian Reichel [this message]
2023-11-16 13:47         ` Sebastian Reichel
2023-11-16 13:47         ` Sebastian Reichel
2023-11-17  7:06         ` Andy Yan
2023-11-17  7:06           ` Andy Yan
2023-11-17  7:06           ` Andy Yan
2023-11-17  9:39           ` Sascha Hauer
2023-11-17  9:39             ` Sascha Hauer
2023-11-17  9:39             ` Sascha Hauer
2023-11-16 19:27   ` Rob Herring
2023-11-16 19:27     ` Rob Herring
2023-11-16 19:27     ` Rob Herring
2023-11-17 23:46   ` Jonas Karlman
2023-11-17 23:46     ` Jonas Karlman
2023-11-17 23:46     ` Jonas Karlman
2023-11-18  0:31     ` Andy Yan
2023-11-18  0:31       ` Andy Yan
2023-11-18  0:31       ` Andy Yan
2023-11-14 11:29 ` [PATCH 10/11] drm/rockchip: vop2: Add debugfs support Andy Yan
2023-11-14 11:29   ` Andy Yan
2023-11-14 11:29   ` Andy Yan
2023-11-14 11:29 ` [PATCH 11/11] arm64: dts: rockchip: Add vop on rk3588 Andy Yan
2023-11-14 11:29   ` Andy Yan
2023-11-14 11:29   ` Andy Yan

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