linux-kernel - Re: [PATCH v2] mtd: rawnand: denali: Use managed device resources

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Date:   Thu, 21 Apr 2022 09:37:16 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Zheyu Ma <zheyuma97@...il.com>, miquel.raynal@...tlin.com,
        richard@....at, vigneshr@...com
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mtd: rawnand: denali: Use managed device resources

On Mon, 2022-04-11 at 12:58:08 UTC, Zheyu Ma wrote:
> All of the resources used by this driver has managed interfaces, so use
> them. Otherwise we will get the following splat:
> 
> [    4.472703] denali-nand-pci 0000:00:05.0: timeout while waiting for irq 0x1000
> [    4.474071] denali-nand-pci: probe of 0000:00:05.0 failed with error -5
> [    4.473538] nand: No NAND device found
> [    4.474068] BUG: unable to handle page fault for address: ffffc90005000410
> [    4.475169] #PF: supervisor write access in kernel mode
> [    4.475579] #PF: error_code(0x0002) - not-present page
> [    4.478362] RIP: 0010:iowrite32+0x9/0x50
> [    4.486068] Call Trace:
> [    4.486269]  <IRQ>
> [    4.486443]  denali_isr+0x15b/0x300 [denali]
> [    4.486788]  ? denali_direct_write+0x50/0x50 [denali]
> [    4.487189]  __handle_irq_event_percpu+0x161/0x3b0
> [    4.487571]  handle_irq_event+0x7d/0x1b0
> [    4.487884]  handle_fasteoi_irq+0x2b0/0x770
> [    4.488219]  __common_interrupt+0xc8/0x1b0
> [    4.488549]  common_interrupt+0x9a/0xc0
> 
> Fixes: 93db446a424c ("mtd: nand: move raw NAND related code to the raw/ subdir")
> Signed-off-by: Zheyu Ma <zheyuma97@...il.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel