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From: Pavel Machek <pavel@nabladev.com>
To: Chris Brandt <Chris.Brandt@renesas.com>
Cc: Pavel Machek <pavel@nabladev.com>,
	"cip-dev@lists.cip-project.org" <cip-dev@lists.cip-project.org>,
	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@mail.toshiba>
Subject: Re: [PATCH 6.1.y-cip 2/7] drm: renesas: rz-du: Implement MIPI DSI host transfers
Date: Thu, 16 Apr 2026 22:59:19 +0200	[thread overview]
Message-ID: <aeFNp1ow-aKSZWx0@duo.ucw.cz> (raw)
In-Reply-To: <OS3PR01MB8319E1A2764C46EC3D8C326E8A252@OS3PR01MB8319.jpnprd01.prod.outlook.com>

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Hi!

> These patches are direct backports from mainline.
> I am trying to keep the CIP version as close to the mainline version as possible.

Understood. You don't have to change these in -CIP, but consider
fixing them in mainline.

> > > +	dsi->dcs_buf_virt = dma_alloc_coherent(dsi->host.dev, RZG2L_DCS_BUF_SIZE,
> > > +					       &dsi->dcs_buf_phys, GFP_KERNEL);
> > > +	if (!dsi->dcs_buf_virt)
> > > +		return -ENOMEM;
> > > +
> > >  	return 0;
> > >
> >
> > This probably should be { err = -ENOMEM; goto err_pm_disable; }
> 
> That is a good point.
> I wrote that part of the driver for an older version of the kernel a couple years ago before they had those return options.
> Then, someone else ported it to the mainline version of the driver and submitted it.
> When I reviewed the mainline version, I didn't catch that.
> I might push a fix to mainline with CC:stable.
> 

Yes, please.

Best regards,
									Pavel

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  reply	other threads:[~2026-04-16 20:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-13 17:18 [PATCH 6.1.y-cip 1/7] drm: renesas: rz-du: Add atomic_pre_enable Chris Brandt
2026-04-13 17:18 ` [PATCH 6.1.y-cip 2/7] drm: renesas: rz-du: Implement MIPI DSI host transfers Chris Brandt
2026-04-14  9:30   ` Pavel Machek
2026-04-14 11:33     ` Chris Brandt
2026-04-16 20:59       ` Pavel Machek [this message]
2026-04-13 17:18 ` [PATCH 6.1.y-cip 3/7] drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels Chris Brandt
2026-04-13 17:18 ` [PATCH 6.1.y-cip 4/7] drm: renesas: rz-du: mipi_dsi: Set DSI divider Chris Brandt
2026-04-13 17:18 ` [PATCH 6.1.y-cip 5/7] clk: renesas: Use IS_ERR() for pointers that cannot be NULL Chris Brandt
2026-04-13 17:18 ` [PATCH 6.1.y-cip 6/7] clk: renesas: rzg2l: Remove DSI clock rate restrictions Chris Brandt
2026-04-13 17:18 ` [PATCH 6.1.y-cip 7/7] clk: renesas: Add missing log message terminators Chris Brandt
2026-04-16 20:57 ` [PATCH 6.1.y-cip 1/7] drm: renesas: rz-du: Add atomic_pre_enable Pavel Machek

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