linux-kernel - [PATCH 1/2] spi: spi-cavium-thunderx: Use non-hybrid PCI devres API

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Message-ID: <20250417083902.23483-2-phasta@kernel.org>
Date: Thu, 17 Apr 2025 10:39:02 +0200
From: Philipp Stanner <phasta@...nel.org>
To: Mark Brown <broonie@...nel.org>
Cc: linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Philipp Stanner <phasta@...nel.org>
Subject: [PATCH 1/2] spi: spi-cavium-thunderx: Use non-hybrid PCI devres API

cavium-thunderx enables its PCI device with pcim_enable_device(). This,
implicitly, switches the function pci_request_regions() into managed
mode, where it becomes a devres function.

The PCI subsystem wants to remove this hybrid nature from its
interfaces. To do so, users of the aforementioned combination of
functions must be ported to non-hybrid functions.

Moreover, since both functions are already managed in this driver, the
calls to pci_release_regions() are unnecessary.

Remove the calls to pci_release_regions().

Replace the call to sometimes-managed pci_request_regions() with one to
the always-managed pcim_request_all_regions().

Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
 drivers/spi/spi-cavium-thunderx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-cavium-thunderx.c b/drivers/spi/spi-cavium-thunderx.c
index 337aef12abcc..367ae7120bb3 100644
--- a/drivers/spi/spi-cavium-thunderx.c
+++ b/drivers/spi/spi-cavium-thunderx.c
@@ -34,7 +34,7 @@ static int thunderx_spi_probe(struct pci_dev *pdev,
 	if (ret)
 		goto error;

-	ret = pci_request_regions(pdev, DRV_NAME);
+	ret = pcim_request_all_regions(pdev, DRV_NAME);
 	if (ret)
 		goto error;

@@ -78,7 +78,6 @@ static int thunderx_spi_probe(struct pci_dev *pdev,
 	return 0;

 error:
-	pci_release_regions(pdev);
 	spi_controller_put(host);
 	return ret;
 }
@@ -92,7 +91,6 @@ static void thunderx_spi_remove(struct pci_dev *pdev)
 	if (!p)
 		return;

-	pci_release_regions(pdev);
 	/* Put everything in a known state. */
 	writeq(0, p->register_base + OCTEON_SPI_CFG(p));
 }
-- 
2.48.1