From: Zheyu Ma <zheyuma97@gmail.com>
To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
Zheyu Ma <zheyuma97@gmail.com>
Subject: [PATCH v2] mtd: rawnand: denali: Use managed device resources
Date: Mon, 11 Apr 2022 20:58:08 +0800 [thread overview]
Message-ID: <20220411125808.958276-1-zheyuma97@gmail.com> (raw)
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@gmail.com>
---
Changes in v2:
- Change the prefix
- Delete the extra space
---
drivers/mtd/nand/raw/denali_pci.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/mtd/nand/raw/denali_pci.c b/drivers/mtd/nand/raw/denali_pci.c
index 20c085a30adc..de7e722d3826 100644
--- a/drivers/mtd/nand/raw/denali_pci.c
+++ b/drivers/mtd/nand/raw/denali_pci.c
@@ -74,22 +74,21 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
return ret;
}
- denali->reg = ioremap(csr_base, csr_len);
+ denali->reg = devm_ioremap(denali->dev, csr_base, csr_len);
if (!denali->reg) {
dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
return -ENOMEM;
}
- denali->host = ioremap(mem_base, mem_len);
+ denali->host = devm_ioremap(denali->dev, mem_base, mem_len);
if (!denali->host) {
dev_err(&dev->dev, "Spectra: ioremap failed!");
- ret = -ENOMEM;
- goto out_unmap_reg;
+ return -ENOMEM;
}
ret = denali_init(denali);
if (ret)
- goto out_unmap_host;
+ return ret;
nsels = denali->nbanks;
@@ -117,10 +116,6 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
out_remove_denali:
denali_remove(denali);
-out_unmap_host:
- iounmap(denali->host);
-out_unmap_reg:
- iounmap(denali->reg);
return ret;
}
@@ -129,8 +124,6 @@ static void denali_pci_remove(struct pci_dev *dev)
struct denali_controller *denali = pci_get_drvdata(dev);
denali_remove(denali);
- iounmap(denali->reg);
- iounmap(denali->host);
}
static struct pci_driver denali_pci_driver = {
--
2.25.1
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next reply other threads:[~2022-04-11 12:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-11 12:58 Zheyu Ma [this message]
2022-04-21 7:37 ` [PATCH v2] mtd: rawnand: denali: Use managed device resources Miquel Raynal
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