linux-kernel - [PATCH v12 7/9] spi: cadence: Change resource mapping

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Message-ID: <20240730114534.1837077-8-wsadowski@marvell.com>
Date: Tue, 30 Jul 2024 04:45:31 -0700
From: Witold Sadowski <wsadowski@...vell.com>
To: <linux-kernel@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC: <broonie@...nel.org>, <robh@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <pthombar@...ence.com>, Witold Sadowski <wsadowski@...vell.com>,
        "Piyush
 Malgujar" <pmalgujar@...vell.com>
Subject: [PATCH v12 7/9] spi: cadence: Change resource mapping

If mapping resource by name will fail try to map resource by number.
Such situation can occur in ACPI case.

Signed-off-by: Witold Sadowski <wsadowski@...vell.com>
Signed-off-by: Piyush Malgujar <pmalgujar@...vell.com>
---
 drivers/spi/spi-cadence-xspi.c | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/drivers/spi/spi-cadence-xspi.c b/drivers/spi/spi-cadence-xspi.c
index 69c08bae7628..a129f33bfd38 100644
--- a/drivers/spi/spi-cadence-xspi.c
+++ b/drivers/spi/spi-cadence-xspi.c
@@ -1118,28 +1118,41 @@ static int cdns_xspi_probe(struct platform_device *pdev)
 
 	cdns_xspi->iobase = devm_platform_ioremap_resource_byname(pdev, "io");
 	if (IS_ERR(cdns_xspi->iobase)) {
-		dev_err(dev, "Failed to remap controller base address\n");
-		return PTR_ERR(cdns_xspi->iobase);
+		cdns_xspi->iobase = devm_platform_ioremap_resource(pdev, 0);
+		if (IS_ERR(cdns_xspi->iobase)) {
+			dev_err(dev, "Failed to remap controller base address\n");
+			return PTR_ERR(cdns_xspi->iobase);
+		}
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sdma");
 	cdns_xspi->sdmabase = devm_ioremap_resource(dev, res);
-	if (IS_ERR(cdns_xspi->sdmabase))
-		return PTR_ERR(cdns_xspi->sdmabase);
+	if (IS_ERR(cdns_xspi->sdmabase)) {
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		cdns_xspi->sdmabase = devm_ioremap_resource(dev, res);
+		if (IS_ERR(cdns_xspi->sdmabase))
+			return PTR_ERR(cdns_xspi->sdmabase);
+	}
 	cdns_xspi->sdmasize = resource_size(res);
 
 	cdns_xspi->auxbase = devm_platform_ioremap_resource_byname(pdev, "aux");
 	if (IS_ERR(cdns_xspi->auxbase)) {
-		dev_err(dev, "Failed to remap AUX address\n");
-		return PTR_ERR(cdns_xspi->auxbase);
+		cdns_xspi->auxbase = devm_platform_ioremap_resource(pdev, 2);
+		if (IS_ERR(cdns_xspi->auxbase)) {
+			dev_err(dev, "Failed to remap AUX address\n");
+			return PTR_ERR(cdns_xspi->auxbase);
+		}
 	}
 
 	if (cdns_xspi->driver_data->mrvl_hw_overlay) {
 		cdns_xspi->xferbase = devm_platform_ioremap_resource_byname(pdev, "xfer");
 		if (IS_ERR(cdns_xspi->xferbase)) {
-			dev_info(dev, "XFER register base not found, set it\n");
-			// For compatibility with older firmware
-			cdns_xspi->xferbase = cdns_xspi->iobase + 0x8000;
+			cdns_xspi->xferbase = devm_platform_ioremap_resource(pdev, 3);
+			if (IS_ERR(cdns_xspi->xferbase)) {
+				dev_info(dev, "XFER register base not found, set it\n");
+				// For compatibility with older firmware
+				cdns_xspi->xferbase = cdns_xspi->iobase + 0x8000;
+			}
 		}
 	}
 
-- 
2.43.0