linux-kernel - [PATCH v2] mmc: Use of_property_present() for non-boolean properties

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Message-ID: <20250109155255.3438450-1-robh@kernel.org>
Date: Thu,  9 Jan 2025 09:52:54 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Ulf Hansson <ulf.hansson@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Haibo Chen <haibo.chen@....com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: Dragan Simic <dsimic@...jaro.org>,
	linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	s32@....com,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2] mmc: Use of_property_present() for non-boolean properties

The use of of_property_read_bool() for non-boolean properties is
deprecated in favor of of_property_present() when testing for property
presence.

Reviewed-by: Haibo Chen <haibo.chen@....com>
Reviewed-by: Dragan Simic <dsimic@...jaro.org>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
v2:
 - Drop initialization of dat3_card_detect
 - Rebase on next-20250109
---
 drivers/mmc/host/mxcmmc.c          | 8 ++++----
 drivers/mmc/host/sdhci-esdhc-imx.c | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index e7a286c3216f..0a9affd12532 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -995,7 +995,7 @@ static int mxcmci_probe(struct platform_device *pdev)
 	struct mxcmci_host *host;
 	struct resource *res;
 	int ret = 0, irq;
-	bool dat3_card_detect = false;
+	bool dat3_card_detect;
 	dma_cap_mask_t mask;
 	struct imxmmc_platform_data *pdata = pdev->dev.platform_data;
 
@@ -1048,9 +1048,9 @@ static int mxcmci_probe(struct platform_device *pdev)
 
 	if (pdata)
 		dat3_card_detect = pdata->dat3_card_detect;
-	else if (mmc_card_is_removable(mmc)
-			&& !of_property_read_bool(pdev->dev.of_node, "cd-gpios"))
-		dat3_card_detect = true;
+	else
+		dat3_card_detect = mmc_card_is_removable(mmc) &&
+				   !of_property_present(pdev->dev.of_node, "cd-gpios");
 
 	ret = mmc_regulator_get_supply(mmc);
 	if (ret)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index e23177ea9d91..ff78a7c6a04c 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1648,7 +1648,7 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
 	 * Retrieving and requesting the actual WP GPIO will happen
 	 * in the call to mmc_of_parse().
 	 */
-	if (of_property_read_bool(np, "wp-gpios"))
+	if (of_property_present(np, "wp-gpios"))
 		boarddata->wp_type = ESDHC_WP_GPIO;
 
 	of_property_read_u32(np, "fsl,tuning-step", &boarddata->tuning_step);
-- 
2.45.2