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Tue, 16 Jul 2024 01:49:27 +0300 (MSK) Received: from [172.28.128.6] (100.64.160.123) by p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 16 Jul 2024 01:49:26 +0300 Message-ID: <66ef4ff5-b472-44ee-a4fc-a68ceacea159@salutedevices.com> Date: Tue, 16 Jul 2024 01:48:18 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/8] reset: amlogic: split the device and platform probe To: Jerome Brunet , Philipp Zabel , Stephen Boyd , Neil Armstrong CC: , , References: <20240710162526.2341399-1-jbrunet@baylibre.com> <20240710162526.2341399-4-jbrunet@baylibre.com> Content-Language: en-US From: Jan Dakinevich In-Reply-To: <20240710162526.2341399-4-jbrunet@baylibre.com> X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 186528 [Jul 16 2024] X-KSMG-AntiSpam-Version: 6.1.0.4 X-KSMG-AntiSpam-Envelope-From: YVDakinevich@sberdevices.ru X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 24 0.3.24 186c4d603b899ccfd4883d230c53f273b80e467f, {Tracking_smtp_not_equal_from}, {Tracking_from_domain_doesnt_match_to}, 100.64.160.123:7.1.2;sberdevices.ru:5.0.1,7.1.1;salutedevices.com:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;smtp.sberdevices.ru:5.0.1,7.1.1, FromAlignment: n, {Tracking_smtp_domain_mismatch}, {Tracking_smtp_domain_2level_mismatch}, {Tracking_white_helo}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/07/15 21:24:00 #26011023 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240715_154929_055444_DBC6F4A1 X-CRM114-Status: GOOD ( 21.84 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 7/10/24 19:25, Jerome Brunet wrote: > To prepare the addition of the auxiliary device support, split > out the device probe from the probe of the platform device. > > The device probe will be common to both the platform and auxiliary > driver. > > Signed-off-by: Jerome Brunet > --- > drivers/reset/reset-meson.c | 55 +++++++++++++++++++++++-------------- > 1 file changed, 34 insertions(+), 21 deletions(-) > > diff --git a/drivers/reset/reset-meson.c b/drivers/reset/reset-meson.c > index 59126c9f194a..fec55321b52b 100644 > --- a/drivers/reset/reset-meson.c > +++ b/drivers/reset/reset-meson.c > @@ -87,6 +87,27 @@ static const struct reset_control_ops meson_reset_ops = { > .deassert = meson_reset_deassert, > }; > > +static int meson_reset_probe(struct device *dev, struct regmap *map, > + const struct meson_reset_param *param) > +{ > + unsigned int stride = regmap_get_reg_stride(map); > + struct meson_reset *data; > + > + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > + if (!data) > + return -ENOMEM; > + > + data->param = param; > + data->map = map; > + data->rcdev.owner = dev->driver->owner; > + data->rcdev.nr_resets = param->reg_count * BITS_PER_BYTE > + * stride; > + data->rcdev.ops = &meson_reset_ops; > + data->rcdev.of_node = dev->of_node; It will be good to add here something like this. Later it would help in reset debugging. data->rcdev.dev = dev; > + > + return devm_reset_controller_register(dev, &data->rcdev); > +} > + > static const struct meson_reset_param meson8b_param = { > .reg_count = 8, > .reset_offset = 0x0, > @@ -125,46 +146,38 @@ static const struct regmap_config regmap_config = { > .reg_stride = 4, > }; > > -static int meson_reset_probe(struct platform_device *pdev) > +static int meson_reset_pltf_probe(struct platform_device *pdev) > { > + > + const struct meson_reset_param *param; > struct device *dev = &pdev->dev; > - struct meson_reset *data; > + struct regmap *map; > void __iomem *base; > > - data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > - if (!data) > - return -ENOMEM; > - > base = devm_platform_ioremap_resource(pdev, 0); > if (IS_ERR(base)) > return PTR_ERR(base); > > - data->param = of_device_get_match_data(dev); > - if (!data->param) > + param = of_device_get_match_data(dev); > + if (!param) > return -ENODEV; > > - data->map = devm_regmap_init_mmio(dev, base, ®map_config); > - if (IS_ERR(data->map)) > - return dev_err_probe(dev, PTR_ERR(data->map), > + map = devm_regmap_init_mmio(dev, base, ®map_config); > + if (IS_ERR(map)) > + return dev_err_probe(dev, PTR_ERR(map), > "can't init regmap mmio region\n"); > > - data->rcdev.owner = THIS_MODULE; > - data->rcdev.nr_resets = data->param->reg_count * BITS_PER_BYTE > - * regmap_config.reg_stride; > - data->rcdev.ops = &meson_reset_ops; > - data->rcdev.of_node = dev->of_node; > - > - return devm_reset_controller_register(dev, &data->rcdev); > + return meson_reset_probe(dev, map, param); > } > > -static struct platform_driver meson_reset_driver = { > - .probe = meson_reset_probe, > +static struct platform_driver meson_reset_pltf_driver = { > + .probe = meson_reset_pltf_probe, > .driver = { > .name = "meson_reset", > .of_match_table = meson_reset_dt_ids, > }, > }; > -module_platform_driver(meson_reset_driver); > +module_platform_driver(meson_reset_pltf_driver); > > MODULE_DESCRIPTION("Amlogic Meson Reset Controller driver"); > MODULE_AUTHOR("Neil Armstrong "); -- Best regards Jan Dakinevich _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic