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[88.93.169.171]) by smtp.gmail.com with ESMTPSA id v4-20020a056512348400b004795bcfe953sm2080436lfr.214.2022.07.12.02.50.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 Jul 2022 02:50:47 -0700 (PDT) Message-ID: <95d12b72-be9d-5503-c4ea-801303bb7776@linaro.org> Date: Tue, 12 Jul 2022 11:50:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v1 2/2] pinctrl: nuvoton: add NPCM8XX pinctrl and GPIO driver Content-Language: en-US To: Tomer Maimon , avifishman70@gmail.com, tali.perry1@gmail.com, joel@jms.id.au, venture@google.com, yuenn@google.com, benjaminfair@google.com, linus.walleij@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, j.neuschaefer@gmx.net, zhengbin13@huawei.com Cc: openbmc@lists.ozlabs.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20220710102110.39748-1-tmaimon77@gmail.com> <20220710102110.39748-3-tmaimon77@gmail.com> From: Krzysztof Kozlowski In-Reply-To: <20220710102110.39748-3-tmaimon77@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org On 10/07/2022 12:21, Tomer Maimon wrote: > Add pinctrl and GPIO controller driver support to Arbel BMC NPCM8XX SoC. > > Arbel BMC NPCM8XX pinctrl driver based on Poleg NPCM7XX, except the > pin mux mapping difference the NPCM8XX GPIO supports adjust debounce > period time. > > Signed-off-by: Tomer Maimon (...) > + > +static int npcm8xx_pinctrl_probe(struct platform_device *pdev) > +{ > + struct npcm8xx_pinctrl *pctrl; > + int ret; > + > + pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL); > + if (!pctrl) > + return -ENOMEM; > + > + pctrl->dev = &pdev->dev; > + dev_set_drvdata(&pdev->dev, pctrl); > + > + pctrl->gcr_regmap = > + syscon_regmap_lookup_by_compatible("nuvoton,npcm845-gcr"); No. Use property. By this patchset, I would expect that you learnt from previous mistakes around this. Why repeating the same trouble second time? > + if (IS_ERR(pctrl->gcr_regmap)) { > + dev_err(pctrl->dev, "didn't find nuvoton,npcm845-gcr\n"); > + return PTR_ERR(pctrl->gcr_regmap); > + } > + > + ret = npcm8xx_gpio_of(pctrl); > + if (ret < 0) { > + dev_err(pctrl->dev, "Failed to gpio dt-binding %u\n", ret); > + return ret; > + } > + > + pctrl->pctldev = devm_pinctrl_register(&pdev->dev, > + &npcm8xx_pinctrl_desc, pctrl); > + if (IS_ERR(pctrl->pctldev)) { > + dev_err(&pdev->dev, "Failed to register pinctrl device\n"); > + return PTR_ERR(pctrl->pctldev); > + } > + > + ret = npcm8xx_gpio_register(pctrl); > + if (ret < 0) { > + dev_err(pctrl->dev, "Failed to register gpio %u\n", ret); > + return ret; > + } > + > + pr_info("npcm8xx Pinctrl driver probed\n"); No pr_ in devices. No success debug messages. > + return 0; > +} > + > +static const struct of_device_id npcm8xx_pinctrl_match[] = { > + { .compatible = "nuvoton,npcm845-pinctrl" }, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, npcm8xx_pinctrl_match); > + > +static struct platform_driver npcm8xx_pinctrl_driver = { > + .probe = npcm8xx_pinctrl_probe, > + .driver = { > + .name = "npcm8xx-pinctrl", > + .of_match_table = npcm8xx_pinctrl_match, > + .suppress_bind_attrs = true, > + }, > +}; > + > +static int __init npcm8xx_pinctrl_register(void) > +{ > + return platform_driver_register(&npcm8xx_pinctrl_driver); > +} > +arch_initcall(npcm8xx_pinctrl_register); > + > +MODULE_LICENSE("GPL v2"); > +MODULE_AUTHOR("tomer.maimon@nuvoton.com"); > +MODULE_DESCRIPTION("Nuvoton NPCM8XX Pinctrl and GPIO driver"); Best regards, Krzysztof