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Thu, 23 Jun 2022 05:03:37 -0700 (PDT) Message-ID: <952582d8-1e02-8407-0f90-d54d327056ad@gmail.com> Date: Thu, 23 Jun 2022 14:03:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCH v2 -next] soc: mediatek: SVS: Use the new PM macros Content-Language: en-US From: Matthias Brugger To: Jin Xiaoyun , angelogioacchino.delregno@collabora.com, khilman@baylibre.com, zhengbin13@huawei.com, gaochao49@huawei.com Cc: linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org References: <20220622013410.2786760-1-jinxiaoyun2@huawei.com> <20220623030931.2816013-1-jinxiaoyun2@huawei.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220623_050342_126785_D84C5939 X-CRM114-Status: GOOD ( 16.64 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 23/06/2022 13:59, Matthias Brugger wrote: > > > On 23/06/2022 05:09, Jin Xiaoyun wrote: >> Use DEFINE_SIMPLE_DEV_PM_OPS() instead of the SIMPLE_DEV_PM_OPS() >> macro, along with using pm_sleep_ptr() as this driver doesn't handle >> runtime PM. >> >> Fix build error: >> drivers/soc/mediatek/mtk-svs.c:1515:12: error: ‘svs_resume’ defined but not >> used [-Werror=unused-function] >> drivers/soc/mediatek/mtk-svs.c:1481:12: error: ‘svs_suspend’ defined but not >> used [-Werror=unused-function] >> >> Signed-off-by: Jin Xiaoyun >> Reviewed-by: Matthias Brugger I never did give my Reviewed-by for that. Please only add these tags if you got it explicetely. Regards, Matthias >> --- >> v1->v2: >> - Remove the #ifdef CONFIG_PM guard around the suspend/resume functions >> - Use DEFINE_SIMPLE_DEV_PM_OPS along with using pm_sleep_ptr() >> --- >>   drivers/soc/mediatek/mtk-svs.c | 4 ++-- >>   1 file changed, 2 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c >> index 606a00a2e57d..fae7376bd083 100644 >> --- a/drivers/soc/mediatek/mtk-svs.c >> +++ b/drivers/soc/mediatek/mtk-svs.c >> @@ -2381,13 +2381,13 @@ static int svs_probe(struct platform_device *pdev) >>       return ret; >>   } >> >> -static SIMPLE_DEV_PM_OPS(svs_pm_ops, svs_suspend, svs_resume); >> +static DEFINE_SIMPLE_DEV_PM_OPS(svs_pm_ops, svs_suspend, svs_resume); >> >>   static struct platform_driver svs_driver = { >>       .probe    = svs_probe, >>       .driver    = { >>           .name        = "mtk-svs", >> -        .pm        = &svs_pm_ops, >> +        .pm        = pm_sleep_ptr(&svs_pm_ops), > > Why do we need that? From my understanding DEFINE_SIMPLE_DEV_PM_OPS() sets > runtime_suspend_fn, runtime_resume_fn and idle_fn to NULL. > > Regards, > Matthias > >>           .of_match_table    = of_match_ptr(svs_of_match), >>       }, >>   }; >> -- >> 2.25.1 >>