linux-kernel - [PATCH 3/3] mtd: rawnand: davinci: use generic device property helpers

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Message-ID: <20241007122350.75285-3-brgl@bgdev.pl>
Date: Mon,  7 Oct 2024 14:23:50 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	Bastien Curutchet <bastien.curutchet@...tlin.com>
Cc: linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 3/3] mtd: rawnand: davinci: use generic device property helpers

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

There's no reason for this driver to be using OF-specific property
accessors. Switch to using generic device property interfaces and
replace the of.h include with property.h. This allows us to no longer
check the existence of the associated of_node.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/mtd/nand/raw/davinci_nand.c | 42 ++++++++++++++---------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index 6c884b59bc98..aa7619eec59e 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -16,8 +16,8 @@
 #include <linux/module.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/rawnand.h>
-#include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 
 #define NRCSR_OFFSET		0x00
@@ -490,7 +490,7 @@ MODULE_DEVICE_TABLE(of, davinci_nand_of_match);
 static struct davinci_nand_pdata *
 nand_davinci_get_pdata(struct platform_device *pdev)
 {
-	if (!dev_get_platdata(&pdev->dev) && pdev->dev.of_node) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		struct davinci_nand_pdata *pdata;
 		const char *mode;
 		u32 prop;
@@ -501,23 +501,24 @@ nand_davinci_get_pdata(struct platform_device *pdev)
 		pdev->dev.platform_data = pdata;
 		if (!pdata)
 			return ERR_PTR(-ENOMEM);
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-chipselect", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-chipselect", &prop))
 			pdata->core_chipsel = prop;
 		else
 			return ERR_PTR(-EINVAL);
 
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-ale", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-ale", &prop))
 			pdata->mask_ale = prop;
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-cle", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-cle", &prop))
 			pdata->mask_cle = prop;
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-mask-chipsel", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-mask-chipsel", &prop))
 			pdata->mask_chipsel = prop;
-		if (!of_property_read_string(pdev->dev.of_node,
-			"ti,davinci-ecc-mode", &mode)) {
+		if (!device_property_read_string(&pdev->dev,
+						 "ti,davinci-ecc-mode",
+						 &mode)) {
 			if (!strncmp("none", mode, 4))
 				pdata->engine_type = NAND_ECC_ENGINE_TYPE_NONE;
 			if (!strncmp("soft", mode, 4))
@@ -525,16 +526,17 @@ nand_davinci_get_pdata(struct platform_device *pdev)
 			if (!strncmp("hw", mode, 2))
 				pdata->engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;
 		}
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-ecc-bits", &prop))
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-ecc-bits", &prop))
 			pdata->ecc_bits = prop;
 
-		if (!of_property_read_u32(pdev->dev.of_node,
-			"ti,davinci-nand-buswidth", &prop) && prop == 16)
+		if (!device_property_read_u32(&pdev->dev,
+					      "ti,davinci-nand-buswidth",
+					      &prop) && prop == 16)
 			pdata->options |= NAND_BUSWIDTH_16;
 
-		if (of_property_read_bool(pdev->dev.of_node,
-			"ti,davinci-nand-use-bbt"))
+		if (device_property_read_bool(&pdev->dev,
+					      "ti,davinci-nand-use-bbt"))
 			pdata->bbt_options = NAND_BBT_USE_FLASH;
 
 		/*
@@ -548,10 +550,8 @@ nand_davinci_get_pdata(struct platform_device *pdev)
 		 * then use "ti,davinci-nand" as the compatible in your
 		 * device-tree file.
 		 */
-		if (of_device_is_compatible(pdev->dev.of_node,
-					    "ti,keystone-nand")) {
+		if (device_is_compatible(&pdev->dev, "ti,keystone-nand"))
 			pdata->options |= NAND_NO_SUBPAGE_WRITE;
-		}
 	}
 
 	return dev_get_platdata(&pdev->dev);
-- 
2.43.0