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Sun, 24 Aug 2025 23:55:12 -0700 (PDT) From: Chen Wang To: u.kleine-koenig@baylibre.com, aou@eecs.berkeley.edu, unicorn_wang@outlook.com, conor+dt@kernel.org, inochiama@gmail.com, krzk+dt@kernel.org, looong.bin@gmail.com, palmer@dabbelt.com, paul.walmsley@sifive.com, robh@kernel.org, tglx@linutronix.de, sycamoremoon376@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, sophgo@lists.linux.dev Subject: [PATCH 1/4] irqchip/sg2042-msi: Improve the logic of obtaining msi-ranges parameters Date: Mon, 25 Aug 2025 14:55:03 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Chen Wang Get the arguments of msi-ranges by specifying nargs directly instead of using nargs_prop. This only takes one step, unlike the previous two steps to get the values of all the arguments. Signed-off-by: Chen Wang --- drivers/irqchip/irq-sg2042-msi.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-= msi.c index 3b13dbbfdb51..5249afd93b4a 100644 --- a/drivers/irqchip/irq-sg2042-msi.c +++ b/drivers/irqchip/irq-sg2042-msi.c @@ -276,17 +276,9 @@ static int sg2042_msi_probe(struct platform_device *pd= ev) data->doorbell_addr =3D res->start; =20 ret =3D fwnode_property_get_reference_args(dev_fwnode(dev), "msi-ranges", - "#interrupt-cells", 0, 0, &args); + NULL, 3, 0, &args); if (ret) { - dev_err(dev, "Unable to parse MSI vec base\n"); - return ret; - } - fwnode_handle_put(args.fwnode); - - ret =3D fwnode_property_get_reference_args(dev_fwnode(dev), "msi-ranges",= NULL, - args.nargs + 1, 0, &args); - if (ret) { - dev_err(dev, "Unable to parse MSI vec number\n"); + dev_err(dev, "Unable to parse MSI Ranges\n"); return ret; } =20 @@ -298,7 +290,7 @@ static int sg2042_msi_probe(struct platform_device *pde= v) } =20 data->irq_first =3D (u32)args.args[0]; - data->num_irqs =3D (u32)args.args[args.nargs - 1]; + data->num_irqs =3D (u32)args.args[2]; =20 mutex_init(&data->msi_map_lock); =20 --=20 2.34.1