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([2a01:e0a:982:cbb0:213f:a579:70af:e4a0]) by smtp.gmail.com with ESMTPSA id h20-20020a05600c351400b003eddf20ed5bsm5195872wmq.18.2023.03.24.07.05.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Mar 2023 07:05:54 -0700 (PDT) Message-ID: Date: Fri, 24 Mar 2023 15:05:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 From: neil.armstrong@linaro.org Subject: Re: [PATCH v2] firmware: meson_sm: populate platform devices from sm device tree data Content-Language: en-US To: Dmitry Rokosov , krzysztof.kozlowski@linaro.org, robh@kernel.org, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, jianxin.pan@amlogic.com Cc: kernel@sberdevices.ru, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, rockosov@gmail.com References: <20230324140141.6743-1-ddrokosov@sberdevices.ru> Organization: Linaro Developer Services In-Reply-To: <20230324140141.6743-1-ddrokosov@sberdevices.ru> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230324_070559_013166_54DB07B7 X-CRM114-Status: GOOD ( 17.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: neil.armstrong@linaro.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 24/03/2023 15:01, Dmitry Rokosov wrote: > In some meson boards, secure monitor device has children, for example, > power secure controller. By default, secure monitor isn't the bus in terms > of device tree subsystem, so the of_platform initialization code doesn't > populate its device tree data. As a result, secure monitor's children > aren't probed at all. > > Run the 'of_platform_populate()' routine manually to resolve such issues. > > Signed-off-by: Dmitry Rokosov > --- > drivers/firmware/meson/meson_sm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c > index 77aa5c6398aa..b79d0e316cb1 100644 > --- a/drivers/firmware/meson/meson_sm.c > +++ b/drivers/firmware/meson/meson_sm.c > @@ -316,7 +316,7 @@ static int __init meson_sm_probe(struct platform_device *pdev) > if (sysfs_create_group(&pdev->dev.kobj, &meson_sm_sysfs_attr_group)) > goto out_in_base; > > - return 0; > + return devm_of_platform_populate(dev); You should check return and jump to out_in_base on error instead. Neil > > out_in_base: > iounmap(fw->sm_shmem_in_base); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel