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[08/12] spi: s3c64xx: introduce s3c64xx_spi_set_port_id()

Message ID	20240208135045.3728927-9-tudor.ambarus@linaro.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel+bounces-58183-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; From: Tudor Ambarus <tudor.ambarus@linaro.org> To: broonie@kernel.org, robh@kernel.org, andi.shyti@kernel.org, semen.protsenko@linaro.org Cc: krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com, linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, andre.draszik@linaro.org, peter.griffin@linaro.org, kernel-team@android.com, willmcvicker@google.com, conor+dt@kernel.org, devicetree@vger.kernel.org, arnd@arndb.de, Tudor Ambarus <tudor.ambarus@linaro.org> Subject: [PATCH 08/12] spi: s3c64xx: introduce s3c64xx_spi_set_port_id() Date: Thu, 8 Feb 2024 13:50:41 +0000 Message-ID: <20240208135045.3728927-9-tudor.ambarus@linaro.org> In-Reply-To: <20240208135045.3728927-1-tudor.ambarus@linaro.org> References: <20240208135045.3728927-1-tudor.ambarus@linaro.org> Precedence: bulk MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-getmail-retrieved-from-mailbox: INBOX
Series	spi: s3c64xx: remove OF alias ID dependency \| [00/12] spi: s3c64xx: remove OF alias ID dependency [01/12] spi: dt-bindings: introduce the ``fifo-depth`` property [02/12] spi: s3c64xx: define a magic value [03/12] spi: s3c64xx: allow full FIFO masks [04/12] spi: s3c64xx: determine the fifo depth only once [05/12] spi: s3c64xx: retrieve the FIFO depth from the device tree [06/12] spi: s3c64xx: allow FIFO depth to be determined from the compatible [07/12] spi: s3c64xx: let the SPI core determine the bus number [08/12] spi: s3c64xx: introduce s3c64xx_spi_set_port_id() [09/12] spi: s3c64xx: get rid of the OF alias ID dependency [10/12] spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id [11/12] spi: s3c64xx: switch gs101 to new port config data [12/12] spi: s3c64xx: switch exynos850 to new port config data

Commit Message

Tudor Ambarus Feb. 8, 2024, 1:50 p.m. UTC

  Prepare driver to get rid of the of alias ID dependency. Split the
port_id logic into a dedicated method.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 37 +++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff mbox series

Patch

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index ac47755beb02..40de325bd094 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1200,6 +1200,27 @@  static inline const struct s3c64xx_spi_port_config *s3c64xx_spi_get_port_config(
 	return (const struct s3c64xx_spi_port_config *)platform_get_device_id(pdev)->driver_data;
 }
 
+static int s3c64xx_spi_set_port_id(struct platform_device *pdev,
+				   struct s3c64xx_spi_driver_data *sdd)
+{
+	int ret;
+
+	if (pdev->dev.of_node) {
+		ret = of_alias_get_id(pdev->dev.of_node, "spi");
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret,
+					     "Failed to get alias id\n");
+		sdd->port_id = ret;
+	} else {
+		if (pdev->id < 0)
+			return dev_err_probe(&pdev->dev, -EINVAL,
+					     "Negative platform ID is not allowed\n");
+		sdd->port_id = pdev->id;
+	}
+
+	return 0;
+}
+
 static void s3c64xx_spi_set_fifomask(struct s3c64xx_spi_driver_data *sdd)
 {
 	const struct s3c64xx_spi_port_config *port_conf = sdd->port_conf;
@@ -1252,18 +1273,10 @@  static int s3c64xx_spi_probe(struct platform_device *pdev)
 	sdd->host = host;
 	sdd->cntrlr_info = sci;
 	sdd->pdev = pdev;
-	if (pdev->dev.of_node) {
-		ret = of_alias_get_id(pdev->dev.of_node, "spi");
-		if (ret < 0)
-			return dev_err_probe(&pdev->dev, ret,
-					     "Failed to get alias id\n");
-		sdd->port_id = ret;
-	} else {
-		if (pdev->id < 0)
-			return dev_err_probe(&pdev->dev, -EINVAL,
-					     "Negative platform ID is not allowed\n");
-		sdd->port_id = pdev->id;
-	}
+
+	ret = s3c64xx_spi_set_port_id(pdev, sdd);
+	if (ret)
+		return ret;
 
 	if (sdd->port_conf->fifo_depth)
 		sdd->fifo_depth = sdd->port_conf->fifo_depth;