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Wed, 24 Jun 2020 10:05:47 +0000 (GMT) Subject: Re: [PATCH 2/4] cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks To: Marek Szyprowski Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Lorenzo Pieralisi , Krzysztof Kozlowski , Daniel Lezcano , Lukasz Luba From: Bartlomiej Zolnierkiewicz Message-ID: Date: Wed, 24 Jun 2020 12:05:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20200616081230.31198-3-m.szyprowski@samsung.com> Content-Language: en-US Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA02SbUhTYRTHeXa3u7vp5DotD5oFwwlZaqHQxUrMhEb1oW9F4PKqFzXd1M2X FCFb4mu+lJI6y95Ec2gOFU1TkylpLF1IjQozLQkrh9o1yMqR15vkt//5n99zzv/AQ2Bys8ib SNJmMDotnaLApcKeZ2u2wDwlqz6wXIBTjawvZbOZxVTnJ7uIYstHEVVnGxJQi78XxNQ9Q4GY ah99L44gVG2NbUjVaSrBVdP2AVzV1XRZVdFtQiq2c/cZ/Lz0SDyTkpTF6ILDY6SJC2UP8LQr LpeeNi+hfFQrKUUSAshQmBqcw0qRlJCTDxEMOww4X6wieMvOCDlKTrIIVgyHtl6Yamr/QS0I mpyLAr5wIOgosIg5yoNUQ//tcQGnPclgKCt8hTiNkVUC6JtjOI2TYXC9yLTpy8hwME4U4pwW kkow9Y1u6h3kOfg+OyLiGXd4Xj+/kYggJBv82rofP9IL3s3fEfB6D/Q6bmF8UIsYZipPcDiQ UTBRc5y3PeDrWLeY17vAWn1NyMUH8hGC9eIFjC96EbRUO3GeOgzTk79wbhBG7oWO/mDePgYN qzcF/Hw3eONw5yO4wY2eWoy3ZVBcKOdpfzA3m/GttaV9rVgVUhi33WXcdoxx2zHG/3vvIqEJ eTGZek0Cow/RMtlBelqjz9QmBMWlajrRxj+yOsd+PEZDf2ItiCSQwlVmnl1Ry0V0lj5HY0FA YApPWeSEVS2XxdM5uYwu9YIuM4XRW5APIVR4yULuf4mWkwl0BpPMMGmMbqsrICTe+ahpQmth A9LZemeqfRTPnjzKKHf6t7tMlvhS5XWVbFMrLaxvKTEW2V1+tnZdpRtiJNlTlvm8uNwWSbj1 xdnqwUhl8qrmYv8T20Ba9EtCFvI6/UOgIGppOYxx9Tv9+dRJgz22av+YamR43PFtYdg1OvTj kJdVsi8uocJHG+E+ohDqE+mDAZhOT/8FCdvgBEMDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrKIsWRmVeSWpSXmKPExsVy+t/xe7rVqp/jDK6vVLeY91nW4vz5DewW mx5fY7X43HuE0WLG+X1MFm9+v2C3WNjUwm6x9shddgcOjzXz1jB6bFrVyeZx59oeNo/NS+o9 +rasYvT4vEkugC1Kz6Yov7QkVSEjv7jEVina0MJIz9DSQs/IxFLP0Ng81srIVEnfziYlNSez LLVI3y5BL+NF92K2gkbuiv3L3jM2ME7n7GLk5JAQMJFYNWU6WxcjF4eQwFJGiZ1fzgE5HEAJ GYnj68sgaoQl/lzrgqp5zSjRsWczK0hCWCBOYtfcE0wgtoiAvkR32xVGkCJmgUlMEj/O3IHq OMoo8e/MNxaQKjYBK4mJ7asYQWxeATuJWWfb2EBsFgFViVU7j4DZogIREod3zIKqEZQ4OfMJ C8hFnED1P/+qgISZBdQl/sy7xAxhi0vcejKfCcKWl9j+dg7zBEahWUi6ZyFpmYWkZRaSlgWM LKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzECo3DbsZ+bdzBe2hh8iFGAg1GJh3fDg49xQqyJ ZcWVuYcYJTiYlUR4nc6ejhPiTUmsrEotyo8vKs1JLT7EaAr020RmKdHkfGCCyCuJNzQ1NLew NDQ3Njc2s1AS5+0QOBgjJJCeWJKanZpakFoE08fEwSnVwCj7hP/Pkrc7WwuU+7e6fd5xpvXT 0RPpB+ryJlpOfXh9e/SKx2o3zU7ZJr3/aP1nc/6qBe/0xMtPXzgz/cm2pl3i50OL3kXxueat +PVQZtIWg13h01yY9z4538iVemGSR4t0tAOP1CODfU7unm8mdfo5b2ks3MdcdLZyyspA5oyE XVOa/6uIb25WYinOSDTUYi4qTgQAzvG1ItgCAAA= X-CMS-MailID: 20200624100547eucas1p2e0845d0df5926b97e9a758817859b5fe X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20200616081249eucas1p2ad165b545f265bec88a06270d55fce76 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200616081249eucas1p2ad165b545f265bec88a06270d55fce76 References: <20200616081230.31198-1-m.szyprowski@samsung.com> <20200616081230.31198-3-m.szyprowski@samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 6/16/20 10:12 AM, Marek Szyprowski wrote: > This driver always worked properly only on the Exynos 5420/5800 based > Chromebooks (Peach-Pit/Pi), so change the required compatible string to > the 'google,peach', to avoid enabling it on the other Exynos 542x/5800 > boards, which hangs in such case. The main difference between Peach-Pit/Pi > and other Exynos 542x/5800 boards is the firmware - Peach platform doesn't > use secure firmware at all. > > Signed-off-by: Marek Szyprowski Reviewed-by: Bartlomiej Zolnierkiewicz Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > --- > drivers/cpuidle/cpuidle-big_little.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c > index 7f8ddc04342d..abe51185f243 100644 > --- a/drivers/cpuidle/cpuidle-big_little.c > +++ b/drivers/cpuidle/cpuidle-big_little.c > @@ -155,8 +155,7 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int part_id) > > static const struct of_device_id compatible_machine_match[] = { > { .compatible = "arm,vexpress,v2p-ca15_a7" }, > - { .compatible = "samsung,exynos5420" }, > - { .compatible = "samsung,exynos5800" }, > + { .compatible = "google,peach" }, > {}, > }; > > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09E9DC433E1 for ; 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Wed, 24 Jun 2020 10:05:47 +0000 (GMT) Subject: Re: [PATCH 2/4] cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks To: Marek Szyprowski From: Bartlomiej Zolnierkiewicz Message-ID: Date: Wed, 24 Jun 2020 12:05:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20200616081230.31198-3-m.szyprowski@samsung.com> Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA02SbUhTYRTHeXa3u7vp5DotD5oFwwlZaqHQxUrMhEb1oW9F4PKqFzXd1M2X FCFb4mu+lJI6y95Ec2gOFU1TkylpLF1IjQozLQkrh9o1yMqR15vkt//5n99zzv/AQ2Bys8ib SNJmMDotnaLApcKeZ2u2wDwlqz6wXIBTjawvZbOZxVTnJ7uIYstHEVVnGxJQi78XxNQ9Q4GY ah99L44gVG2NbUjVaSrBVdP2AVzV1XRZVdFtQiq2c/cZ/Lz0SDyTkpTF6ILDY6SJC2UP8LQr LpeeNi+hfFQrKUUSAshQmBqcw0qRlJCTDxEMOww4X6wieMvOCDlKTrIIVgyHtl6Yamr/QS0I mpyLAr5wIOgosIg5yoNUQ//tcQGnPclgKCt8hTiNkVUC6JtjOI2TYXC9yLTpy8hwME4U4pwW kkow9Y1u6h3kOfg+OyLiGXd4Xj+/kYggJBv82rofP9IL3s3fEfB6D/Q6bmF8UIsYZipPcDiQ UTBRc5y3PeDrWLeY17vAWn1NyMUH8hGC9eIFjC96EbRUO3GeOgzTk79wbhBG7oWO/mDePgYN qzcF/Hw3eONw5yO4wY2eWoy3ZVBcKOdpfzA3m/GttaV9rVgVUhi33WXcdoxx2zHG/3vvIqEJ eTGZek0Cow/RMtlBelqjz9QmBMWlajrRxj+yOsd+PEZDf2ItiCSQwlVmnl1Ry0V0lj5HY0FA YApPWeSEVS2XxdM5uYwu9YIuM4XRW5APIVR4yULuf4mWkwl0BpPMMGmMbqsrICTe+ahpQmth A9LZemeqfRTPnjzKKHf6t7tMlvhS5XWVbFMrLaxvKTEW2V1+tnZdpRtiJNlTlvm8uNwWSbj1 xdnqwUhl8qrmYv8T20Ba9EtCFvI6/UOgIGppOYxx9Tv9+dRJgz22av+YamR43PFtYdg1OvTj kJdVsi8uocJHG+E+ohDqE+mDAZhOT/8FCdvgBEMDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrKIsWRmVeSWpSXmKPExsVy+t/xe7rVqp/jDK6vVLeY91nW4vz5DewW mx5fY7X43HuE0WLG+X1MFm9+v2C3WNjUwm6x9shddgcOjzXz1jB6bFrVyeZx59oeNo/NS+o9 +rasYvT4vEkugC1Kz6Yov7QkVSEjv7jEVina0MJIz9DSQs/IxFLP0Ng81srIVEnfziYlNSez LLVI3y5BL+NF92K2gkbuiv3L3jM2ME7n7GLk5JAQMJFYNWU6WxcjF4eQwFJGiZ1fzgE5HEAJ GYnj68sgaoQl/lzrgqp5zSjRsWczK0hCWCBOYtfcE0wgtoiAvkR32xVGkCJmgUlMEj/O3IHq OMoo8e/MNxaQKjYBK4mJ7asYQWxeATuJWWfb2EBsFgFViVU7j4DZogIREod3zIKqEZQ4OfMJ C8hFnED1P/+qgISZBdQl/sy7xAxhi0vcejKfCcKWl9j+dg7zBEahWUi6ZyFpmYWkZRaSlgWM LKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzECo3DbsZ+bdzBe2hh8iFGAg1GJh3fDg49xQqyJ ZcWVuYcYJTiYlUR4nc6ejhPiTUmsrEotyo8vKs1JLT7EaAr020RmKdHkfGCCyCuJNzQ1NLew NDQ3Njc2s1AS5+0QOBgjJJCeWJKanZpakFoE08fEwSnVwCj7hP/Pkrc7WwuU+7e6fd5xpvXT 0RPpB+ryJlpOfXh9e/SKx2o3zU7ZJr3/aP1nc/6qBe/0xMtPXzgz/cm2pl3i50OL3kXxueat +PVQZtIWg13h01yY9z4538iVemGSR4t0tAOP1CODfU7unm8mdfo5b2ks3MdcdLZyyspA5oyE XVOa/6uIb25WYinOSDTUYi4qTgQAzvG1ItgCAAA= X-CMS-MailID: 20200624100547eucas1p2e0845d0df5926b97e9a758817859b5fe X-Msg-Generator: CA X-RootMTR: 20200616081249eucas1p2ad165b545f265bec88a06270d55fce76 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200616081249eucas1p2ad165b545f265bec88a06270d55fce76 References: <20200616081230.31198-1-m.szyprowski@samsung.com> <20200616081230.31198-3-m.szyprowski@samsung.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lorenzo Pieralisi , linux-pm@vger.kernel.org, Daniel Lezcano , Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, Lukasz Luba , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 6/16/20 10:12 AM, Marek Szyprowski wrote: > This driver always worked properly only on the Exynos 5420/5800 based > Chromebooks (Peach-Pit/Pi), so change the required compatible string to > the 'google,peach', to avoid enabling it on the other Exynos 542x/5800 > boards, which hangs in such case. The main difference between Peach-Pit/Pi > and other Exynos 542x/5800 boards is the firmware - Peach platform doesn't > use secure firmware at all. > > Signed-off-by: Marek Szyprowski Reviewed-by: Bartlomiej Zolnierkiewicz Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > --- > drivers/cpuidle/cpuidle-big_little.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c > index 7f8ddc04342d..abe51185f243 100644 > --- a/drivers/cpuidle/cpuidle-big_little.c > +++ b/drivers/cpuidle/cpuidle-big_little.c > @@ -155,8 +155,7 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int part_id) > > static const struct of_device_id compatible_machine_match[] = { > { .compatible = "arm,vexpress,v2p-ca15_a7" }, > - { .compatible = "samsung,exynos5420" }, > - { .compatible = "samsung,exynos5800" }, > + { .compatible = "google,peach" }, > {}, > }; > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel