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[62.78.225.252]) by smtp.gmail.com with ESMTPSA id u3-20020a2e9b03000000b002aeee2a093csm2306817lji.59.2023.05.28.23.23.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 28 May 2023 23:23:27 -0700 (PDT) Date: Mon, 29 May 2023 09:23:23 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "Rafael J. Wysocki" , Wolfram Sang , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Andreas Klinger , Marcin Wojtas , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jonathan =?iso-8859-1?Q?Neusch=E4fer?= , Linus Walleij , Paul Cercueil , Akhil R , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-iio@vger.kernel.org, netdev@vger.kernel.org, openbmc@lists.ozlabs.org, linux-gpio@vger.kernel.org, linux-mips@vger.kernel.org Subject: [PATCH v7 4/9] pinctrl: wpcm450: relax return value check for IRQ get Message-ID: <659ca38e756b724b4192ff2923e8fdf6970dcb8a.1685340157.git.mazziesaccount@gmail.com> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="tmsiDw0gNfKCbTvd" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --tmsiDw0gNfKCbTvd Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" fwnode_irq_get[_byname]() were changed to not return 0 anymore. The special error case where device-tree based IRQ mapping fails can't no longer be reliably detected from this return value. This yields a functional change in the driver where the mapping failure is treated as an error. The mapping failure can occur for example when the device-tree IRQ information translation call-back(s) (xlate) fail, IRQ domain is not found, IRQ type conflicts, etc. In most cases this indicates an error in the device-tree and special handling is not really required. One more thing to note is that ACPI APIs do not return zero for any failures so this special handling did only apply on device-tree based systems. Drop the special (no error, just skip the IRQ) handling for DT mapping failures as these can no longer be separated from other errors at driver side. Signed-off-by: Matti Vaittinen Reviewed-by: Jonathan Neusch=C3=A4fer Acked-by: Linus Walleij Reviewed-by: Jonathan Cameron --- Revision history: v5 =3D> : - No changes v4 =3D> v5: Fix typo in subject "elax" =3D> "relax" Please note, I took Linus' reply to v4 cover-letter as ack && added the tag. Please let me know if this was not Ok. The first patch of the series changes the fwnode_irq_get() so this depends on the first patch of the series and should not be applied alone. --- drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nu= voton/pinctrl-wpcm450.c index 2d1c1652cfd9..f9326210b5eb 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c +++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c @@ -1106,8 +1106,6 @@ static int wpcm450_gpio_register(struct platform_devi= ce *pdev, irq =3D fwnode_irq_get(child, i); if (irq < 0) break; - if (!irq) - continue; =20 girq->parents[i] =3D irq; girq->num_parents++; --=20 2.40.1 --=20 Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =3D]=20 --tmsiDw0gNfKCbTvd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmR0RNsACgkQeFA3/03a ocXPgwf/Zi2Bv7qbgYULt7Nb+PqfNYF1ZToUT1Yd9YsuAEXhr3hg2j2ioY7GPKPb mTY19pax+3TiNp1UMDzKEM56YSvoDnmH7W0LOfmY4TYwYW7HCIKUbOaxBdryIxxP KlqB0v3GJFtJYZ6kXkYRmIpoim//c1tq0AeAyGItckYQD9K5WZwr/MtXFYSvagRb KY8NfeW5zCV21dYUi5GwrJn4x0j6G9AKa+6q4MTYNVcA/jpbJLfa5nkyUI6TFoMF a8C+tN3GCyfmTz72OgM/mnP6py9WojJgEYtfVkuNzFUztOK7N+tctbX27sNVe85W 1LJjc3gplowL57qhGAzvC9OCcawnUQ== =hJsa -----END PGP SIGNATURE----- --tmsiDw0gNfKCbTvd--