linux-kernel - [PATCH 5.4 027/434] NFC: nxp-nci: Fix probing without ACPI

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Message-Id: <20191229172703.876687020@linuxfoundation.org>
Date:   Sun, 29 Dec 2019 18:21:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 5.4 027/434] NFC: nxp-nci: Fix probing without ACPI

From: Stephan Gerhold <stephan@...hold.net>

[ Upstream commit 868afbaca1e2a7923e48b5e8c07be34660525db5 ]

devm_acpi_dev_add_driver_gpios() returns -ENXIO if CONFIG_ACPI
is disabled (e.g. on device tree platforms).
In this case, nxp-nci will silently fail to probe.

The other NFC drivers only log a debug message if
devm_acpi_dev_add_driver_gpios() fails.
Do the same in nxp-nci to fix this problem.

Fixes: ad0acfd69add ("NFC: nxp-nci: Get rid of code duplication in ->probe()")
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Signed-off-by: Stephan Gerhold <stephan@...hold.net>
Acked-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/nfc/nxp-nci/i2c.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -278,7 +278,7 @@ static int nxp_nci_i2c_probe(struct i2c_
 
 	r = devm_acpi_dev_add_driver_gpios(dev, acpi_nxp_nci_gpios);
 	if (r)
-		return r;
+		dev_dbg(dev, "Unable to add GPIO mapping table\n");
 
 	phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
 	if (IS_ERR(phy->gpiod_en)) {