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[86.58.6.171]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45a1abcd59bsm465535e9.3.2025.08.13.08.25.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Aug 2025 08:25:08 -0700 (PDT) From: Jernej =?UTF-8?B?xaBrcmFiZWM=?= To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Chen-Yu Tsai Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Andre Przywara Subject: Re: [PATCH net-next v2 04/10] soc: sunxi: sram: register regmap as syscon Date: Wed, 13 Aug 2025 17:25:05 +0200 Message-ID: <5910992.DvuYhMxLoT@jernej-laptop> In-Reply-To: <20250813145540.2577789-5-wens@kernel.org> References: <20250813145540.2577789-1-wens@kernel.org> <20250813145540.2577789-5-wens@kernel.org> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Dne sreda, 13. avgust 2025 ob 16:55:34 Srednjeevropski poletni =C4=8Das je = Chen-Yu Tsai napisal(a): > From: Chen-Yu Tsai >=20 > If the system controller had a ethernet controller glue layer control > register, a limited access regmap would be registered and tied to the > system controller struct device for the ethernet driver to use. >=20 > Until now, for the ethernet driver to acquire this regmap, it had to > do a of_parse_phandle() + find device + dev_get_regmap() sequence. > Since the syscon framework allows a provider to register a custom > regmap for its device node, and the ethernet driver already uses > syscon for one platform, this provides a much more easier way to > pass the regmap. >=20 > Use of_syscon_register_regmap() to register our regmap with the > syscon framework so that consumers can retrieve it that way. >=20 > Signed-off-by: Chen-Yu Tsai Acked-by: Jernej Skrabec Best regards, Jernej >=20 > --- > Changes since v1: > - Fix check on return value > - Expand commit message > --- > drivers/soc/sunxi/sunxi_sram.c | 6 ++++++ > 1 file changed, 6 insertions(+) >=20 > diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sra= m.c > index 4f8d510b7e1e..1837e1b5dce8 100644 > --- a/drivers/soc/sunxi/sunxi_sram.c > +++ b/drivers/soc/sunxi/sunxi_sram.c > @@ -12,6 +12,7 @@ > =20 > #include > #include > +#include > #include > #include > #include > @@ -377,6 +378,7 @@ static int __init sunxi_sram_probe(struct platform_de= vice *pdev) > const struct sunxi_sramc_variant *variant; > struct device *dev =3D &pdev->dev; > struct regmap *regmap; > + int ret; > =20 > sram_dev =3D &pdev->dev; > =20 > @@ -394,6 +396,10 @@ static int __init sunxi_sram_probe(struct platform_d= evice *pdev) > regmap =3D devm_regmap_init_mmio(dev, base, &sunxi_sram_regmap_config); > if (IS_ERR(regmap)) > return PTR_ERR(regmap); > + > + ret =3D of_syscon_register_regmap(dev->of_node, regmap); > + if (ret) > + return ret; > } > =20 > of_platform_populate(dev->of_node, NULL, NULL, dev); >=20