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Tue, 10 Sep 2019 12:36:35 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 1/6] opp: Handle target/min/max voltage in dev_pm_opp_adjust_voltage() Date: Tue, 10 Sep 2019 14:36:13 +0200 Message-Id: <20190910123618.27985-2-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupjleLIzCtJLcpLzFFi42LZduzned0rM8pjDRbd1rDYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y27RuvcIu8XhN+2sFpsfHGNz 4PHYtKqTzWPzknqPvi2rGD0+b5ILYInisklJzcksSy3St0vgyrjcPIml4KxgxbL2vewNjHP4 uhg5OCQETCTaLth1MXJyCAmsYJRY8dG5i5ELyP7CKLHu8Sx2COczo8TVT3sZQapAGhb+38II kVjOKPHi/gtWuJals+awgFSxCRhK9B7tA+sQEVCXeHXqPzNIEbPAOiaJZbOWgSWEBaIlXvWt YAaxWQRUJVY/2g8W5xWwlljXsQpqnbzE6g0HwGo4BWwkTu3exQQySEKgm12ifc98VognXCSW 7A2DqBeWeHV8CzuELSNxenIPC0R9M6NEz+7b7BDOBEaJ+8cXQG2wljh8/CLYIGYBTYn1u/Qh wo4Sb57vZoOYzydx460gSJgZyJy0bTozRJhXoqNNCKJaReL3qulMELaURPeT/ywQtofEt6e7 mSEB1M8ose3bZNYJjPKzEJYtYGRcxSieWlqcm55abJyXWq5XnJhbXJqXrpecn7uJEZhKTv87 /nUH474/SYcYBTgYlXh4O1rKY4VYE8uKK3MPMUpwMCuJ8F7vK40V4k1JrKxKLcqPLyrNSS0+ xCjNwaIkzlvN8CBaSCA9sSQ1OzW1ILUIJsvEwSnVwJhjMvedzGohuTmy6zcvm3nYu1br/hcu n8Ob63aUa0oxLVltJca47DRbwbE3+yZZBMo7ejV6VDfPmf0wnUtpoqL5y02N3aVcjoufSM74 vtNA1v7i7i09El+EvOo7F/Xz7/x3vXRZX9Hl5ZccL2ts2N7w1+32/wm8PtnP1He02O6zFdc4 yLHj330lluKMREMt5qLiRACf1N1vIQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrPLMWRmVeSWpSXmKPExsVy+t/xu7qXZ5THGrz9bW6xccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl3G5eRJLwVnBimXte9kbGOfwdTFyckgImEgs/L+FsYuRi0NI YCmjRMPbc0AOB1BCSmJ+ixJEjbDEn2tdbBA1nxglln/uYARJsAkYSvQe7QOrFxHQlNi7DqyG WWAHk8TeZ3/ZQGqEBSIljv3aBlbPIqAqsfrRfjCbV8BaYl3HKkaIBfISqzccYAaxOQVsJE7t 3sUEYgsB1bz+OIV1AiPfAkaGVYwiqaXFuem5xUZ6xYm5xaV56XrJ+bmbGIGBve3Yzy07GLve BR9iFOBgVOLh7WgpjxViTSwrrsw9xCjBwawkwnu9rzRWiDclsbIqtSg/vqg0J7X4EKMp0FET maVEk/OBUZdXEm9oamhuYWlobmxubGahJM7bIXAwRkggPbEkNTs1tSC1CKaPiYNTqoFRUS8h KnzTOWH3N/Obsi/Gr9lyf+XGTo8z0zZ/DtZSM8juuamqnGIU+CK2Z6UUu9liBssXnUkXT6rO Ejhy//nU9Hxpz5od7snv+Fp8C0rzJnEoLK2oemfz41bUj3snGJLW5XbsDfu2Yl3eLA3vXI8r PnmLXu1Z8XxinX3B5hLWco0t2TF5dtFKLMUZiYZazEXFiQAoOznxggIAAA== X-CMS-MailID: 20190910123636eucas1p250ec04901f227b947cc38936563f63b2 X-Msg-Generator: CA X-RootMTR: 20190910123636eucas1p250ec04901f227b947cc38936563f63b2 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123636eucas1p250ec04901f227b947cc38936563f63b2 References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org To be squashed with patch "PM / OPP: Support adjusting OPP voltages at runtime". Signed-off-by: Sylwester Nawrocki --- Changes since v3: - new patch drivers/opp/core.c | 10 ++++++++-- include/linux/pm_opp.h | 3 ++- 2 files changed, 10 insertions(+), 3 deletions(-) -- 2.17.1 diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 407a07f29b12..4ebe5a6c280b 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -2057,14 +2057,18 @@ static int _opp_set_availability(struct device *dev, unsigned long freq, * dev_pm_opp_adjust_voltage() - helper to change the voltage of an OPP * @dev: device for which we do this operation * @freq: OPP frequency to adjust voltage of - * @u_volt: new OPP voltage + * @u_volt: new OPP target voltage + * @u_volt_min: new OPP min voltage + * @u_volt_max: new OPP max voltage * * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the * copy operation, returns 0 if no modifcation was done OR modification was * successful. */ int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, - unsigned long u_volt) + unsigned long u_volt, unsigned long u_volt_min, + unsigned long u_volt_max) + { struct opp_table *opp_table; struct dev_pm_opp *tmp_opp, *opp = ERR_PTR(-ENODEV); @@ -2098,6 +2102,8 @@ int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, goto adjust_unlock; opp->supplies->u_volt = u_volt; + opp->supplies->u_volt_min = u_volt_min; + opp->supplies->u_volt_max = u_volt_max; dev_pm_opp_get(opp); mutex_unlock(&opp_table->lock); diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 86947d53e8c4..0ee1daafe6af 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -113,7 +113,8 @@ void dev_pm_opp_remove(struct device *dev, unsigned long freq); void dev_pm_opp_remove_all_dynamic(struct device *dev); int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, - unsigned long u_volt); + unsigned long u_volt, unsigned long u_volt_min, + unsigned long u_volt_max); int dev_pm_opp_enable(struct device *dev, unsigned long freq); From patchwork Tue Sep 10 12:36:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 11139439 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C337276 for ; 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Tue, 10 Sep 2019 12:36:37 +0000 (GMT) X-AuditID: cbfec7f2-569ff70000001175-68-5d7798d6b9fa Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id EB.EC.04117.5D8977D5; Tue, 10 Sep 2019 13:36:37 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190910123636eusmtip11189d73e0cd292dac1eb81a70cbae68d~DE_tjHbJ71089810898eusmtip1v; Tue, 10 Sep 2019 12:36:36 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 2/6] dt-bindings: samsung: Update the CHIP ID binding documentation Date: Tue, 10 Sep 2019 14:36:14 +0200 Message-Id: <20190910123618.27985-3-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFuplleLIzCtJLcpLzFFi42LZduzned1rM8pjDfZPZLHYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y27RuvcIu8XhN+2sFpsfHGNz 4PHYtKqTzWPzknqPvi2rGD0+b5ILYInisklJzcksSy3St0vgynjw6gBrQS9vxY0JT1gbGH9y dTFyckgImEjseTiNuYuRi0NIYAWjRNveVkYI5wujxOLr05ggnM+MEkeergbKcIC1nDnmBBFf ziixfWYDG1zH9pajLCBz2QQMJXqP9jGC2CIC6hKvTv0H28EssI5JYtmsZWCThAUiJJZMjACp YRFQlTi37hVYPa+AtcTKRZuZIe6Tl1i94QCYzSlgI3Fq9y6wiyQEutkl1izqY4O4yEVi+vMQ iHphiVfHt7BD2DISpyf3sEDUNzNK9Oy+zQ7hTGCUuH98ASNElbXE4eMXWUEGMQtoSqzfpQ8R dpS4tOYB1Hw+iRtvBUHCzEDmpG3TmSHCvBIdbUIQ1SoSv1dNZ4KwpSS6n/xngbA9JOYs2Qm2 SEign1Hi5U7rCYzysxB2LWBkXMUonlpanJueWmyYl1quV5yYW1yal66XnJ+7iRGYSE7/O/5p B+PXS0mHGAU4GJV4eDtaymOFWBPLiitzDzFKcDArifBe7yuNFeJNSaysSi3Kjy8qzUktPsQo zcGiJM5bzfAgWkggPbEkNTs1tSC1CCbLxMEp1cAoejuT4+IaC3U3DplpqcuaEnfe/qUu4jjP 147X/ezEa/yNQTs1BD0k85i8xM9mXv9+95arks/UuIZ5fe5T2hI8xV0CNsnHHJyykUd2cTf3 v3/Ljrsm7U+v/cG7bWrq7zXtJ1S2ZyT5uEmJKf9gqGM4lrs07lCC7taMhUpPnX9O/q5fUtuq u1+JpTgj0VCLuag4EQAiRUw0IAMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrLLMWRmVeSWpSXmKPExsVy+t/xu7pXZ5THGjw4K2uxccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl/Hg1QHWgl7eihsTnrA2MP7k6mLk4JAQMJE4c8ypi5GLQ0hg KaPExQu3WSDiUhLzW5S6GDmBTGGJP9e62CBqPjFKrDs5hRUkwSZgKNF7tI8RpF5EQFNi7zqw GmaBHUwSe5/9ZQOJCwuESey5pQhSziKgKnFu3StGEJtXwFpi5aLNzBDz5SVWbzgAZnMK2Eic 2r2LCcQWAqp5/XEK6wRGvgWMDKsYRVJLi3PTc4uN9IoTc4tL89L1kvNzNzECg3rbsZ9bdjB2 vQs+xCjAwajEw9vRUh4rxJpYVlyZe4hRgoNZSYT3el9prBBvSmJlVWpRfnxRaU5q8SFGU6Cj JjJLiSbnAyMuryTe0NTQ3MLS0NzY3NjMQkmct0PgYIyQQHpiSWp2ampBahFMHxMHp1QDo+XE ffOsHuW8Zwl4WPjm+JzfX+Kbwv2mWU8J2/uqRDPJMsbdosNGsEqsffWtLZyueY92CZ0wZvS4 uoN5y3PLPw+WZBvmxa4xFmsJf25xeUJ2/EvZSYt4zzTnL+zg33FieZqqAYvtgitz/ySqlnqv Lp2SLTMxhFl26u8DEYf0Otk860L6/HbsVWIpzkg01GIuKk4EAE9kh36AAgAA X-CMS-MailID: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 X-Msg-Generator: CA X-RootMTR: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123637eucas1p26d2051f9bdd1bdf4510f1908ea98f641 References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This patch adds documentation of a new optional "samsung,asv-bin" property in the chipid device node and documents requirement of "syscon" compatible string. These additions are needed to support Exynos ASV (Adaptive Supply Voltage) feature. Signed-off-by: Sylwester Nawrocki Reviewed-by: Rob Herring --- Changes since v3: - none Changes since v2: - corrected patch summary line prefix, the patch moved in the sequence Changes since v1 (RFC): - new patch --- .../devicetree/bindings/arm/samsung/exynos-chipid.txt | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) -- 2.17.1 diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt index 85c5dfd4a720..be3657e6c00c 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.txt @@ -1,12 +1,18 @@ -SAMSUNG Exynos SoCs Chipid driver. +SAMSUNG Exynos SoC series CHIPID subsystem Required properties: -- compatible : Should at least contain "samsung,exynos4210-chipid". +- compatible : Should at least contain "samsung,exynos4210-chipid", "syscon". - reg: offset and length of the register set +Optional properties: + - samsung,asv-bin : Adaptive Supply Voltage bin selection. This can be used + to determine the ASV bin of an SoC if respective information is missing + in the CHIPID registers or in the OTP memory. Possible values: 0...3. + Example: chipid@10000000 { compatible = "samsung,exynos4210-chipid"; reg = <0x10000000 0x100>; + samsung,asv-bin = <2>; }; From patchwork Tue Sep 10 12:36:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 11139453 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0E8021709 for ; Tue, 10 Sep 2019 12:37:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC095208E4 for ; Tue, 10 Sep 2019 12:36:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="Vtrx7qdG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404409AbfIJMgp (ORCPT ); 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Tue, 10 Sep 2019 12:36:38 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 3/6] soc: samsung: Add Exynos Adaptive Supply Voltage driver Date: Tue, 10 Sep 2019 14:36:15 +0200 Message-Id: <20190910123618.27985-4-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprEKsWRmVeSWpSXmKPExsWy7djP87o3ZpTHGtz6KmSxccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBLFZZOSmpNZllqkb5fAlbHr5SLWglfzmCq2NnWxNzA+ fszYxcjJISFgItF7aip7FyMXh5DACkaJti07WSGcL4wSs27NhnI+M0o07brLAtPSNmUxVGI5 o0T3qimMcC0v701jA6liEzCU6D3aB7ZEREBd4tWp/8wgRcwC65gkls1aBpYQFgiU2LfsJDOI zSKgKvH0+RSgZg4OXgFrib1PUyC2yUus3nAArIRTwEbi1O5dTCBzJAQms0tc7m6D+sJFYtXx Q6wQtrDEq+Nb2CFsGYnTk3tYIBqaGSV6dt9mh3AmMErcP74Aqtta4vDxi6wgm5kFNCXW79KH CDtKTNn1gREkLCHAJ3HjrSBImBnInLRtOjNEmFeio00IolpF4veq6UwQtpRE95P/0NDykJi7 GuIEIYF+RombNw+xTWCUn4WwbAEj4ypG8dTS4tz01GLDvNRyveLE3OLSvHS95PzcTYzAlHL6 3/FPOxi/Xko6xCjAwajEw9vRUh4rxJpYVlyZe4hRgoNZSYT3el9prBBvSmJlVWpRfnxRaU5q 8SFGaQ4WJXHeaoYH0UIC6YklqdmpqQWpRTBZJg5OqQZG8fxjW4+t3vBJ7ItZ4R3n8K1fJE70 eiSUhjuFZK0/5vpXhNP/xbP/zi9nTAgPf6g6484L25XiK5eqrdOPXuC33jrqfRRHxf/sZ6vD NTt8y9bmHHtcH3M25H3GDcEPDV+d7p/efIVhy1t9D5Z981fse/thQl67n2f6AqkHM/cXCBds VnGxYuk+ocRSnJFoqMVcVJwIAMiNS80lAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrALMWRmVeSWpSXmKPExsVy+t/xu7rXZ5THGnyeKG2xccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl7Hr5SLWglfzmCq2NnWxNzA+fszYxcjJISFgItE2ZTFrFyMX h5DAUkaJgxNOs3UxcgAlpCTmtyhB1AhL/LnWxQZR84lRYu2kmcwgCTYBQ4neo32MIPUiApoS e9eB1TAL7GCS2PvsLxtIjbCAv8SmJ3dYQWwWAVWJp8+ngM3nFbCW2Ps0BWK+vMTqDQfARnIK 2Eic2r2LCcQWAip5/XEK6wRGvgWMDKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzECQ3vbsZ+b dzBe2hh8iFGAg1GJh/dBW3msEGtiWXFl7iFGCQ5mJRHe632lsUK8KYmVValF+fFFpTmpxYcY TYFumsgsJZqcD4y7vJJ4Q1NDcwtLQ3Njc2MzCyVx3g6BgzFCAumJJanZqakFqUUwfUwcnFIN jPO7fnA6x6esXrj37HG272p7n7r9v8L5dmePVR3fesfdnrxpJX/mOxnZnTWLPnGMn1noSOqc Fdueey4J+nX/xoMShfbpGod/ZIlNCCorNo3yvsU0MZatfftTy0krvaKXasUZr3+46L3Xi8Xe 1x+Xdd0Qvui7RuirzN2Hk0y4epSMWuUtjOavXqjEUpyRaKjFXFScCAADHlhogwIAAA== X-CMS-MailID: 20190910123639eucas1p2ab65f8d2bba3ca9da831d2549dc62cfb X-Msg-Generator: CA X-RootMTR: 20190910123639eucas1p2ab65f8d2bba3ca9da831d2549dc62cfb X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123639eucas1p2ab65f8d2bba3ca9da831d2549dc62cfb References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The Adaptive Supply Voltage (ASV) driver adjusts CPU cluster operating points depending on exact revision of an SoC retrieved from the CHIPID block or the OTP memory. This allows for some power saving as for some CPU clock frequencies we can lower CPU cluster's supply voltage comparing to safe values common to all the SoC revisions. This patch adds support for Exynos5422/5800 SoC, it is partially based on code from https://github.com/hardkernel/linux repository, branch odroidxu4-4.14.y, files: arch/arm/mach-exynos/exynos5422-asv.[ch]. Tested on Odroid XU3, XU4, XU3 Lite. Signed-off-by: Sylwester Nawrocki --- Changes since v3: - instead of removing/adding OPP use dedicated API to adjust OPP's voltage, only exynos_asv_update_cpu_opps() function has changed, - added a comment describing ASV tables at beginning of exynos5422-asv.c file. Changes since v2: - use devm_kzalloc() in probe() to avoid memory leak, - removed leading spaces in exynos-chipid.h, - removed unneeded header inclusion, - dropped parentheses from exynos542_asv_parse_sg(), - updated Kconfig entry, - added const attribute to struct exynos_asv_susbsys::cpu_dt_compat. Changes since v1 (RFC): - removed code for parsing the ASV OPP tables from DT, the ASV OPP tables moved to the driver, - converted to use the regmap API, - converted to normal platform driver. --- drivers/soc/samsung/Kconfig | 10 + drivers/soc/samsung/Makefile | 3 + drivers/soc/samsung/exynos-asv.c | 179 ++++++++++ drivers/soc/samsung/exynos-asv.h | 82 +++++ drivers/soc/samsung/exynos5422-asv.c | 509 +++++++++++++++++++++++++++ drivers/soc/samsung/exynos5422-asv.h | 25 ++ 6 files changed, 808 insertions(+) create mode 100644 drivers/soc/samsung/exynos-asv.c create mode 100644 drivers/soc/samsung/exynos-asv.h create mode 100644 drivers/soc/samsung/exynos5422-asv.c create mode 100644 drivers/soc/samsung/exynos5422-asv.h -- 2.17.1 diff --git a/drivers/soc/samsung/Kconfig b/drivers/soc/samsung/Kconfig index 33ad0de2de3c..27fc59bbb520 100644 --- a/drivers/soc/samsung/Kconfig +++ b/drivers/soc/samsung/Kconfig @@ -7,6 +7,16 @@ menuconfig SOC_SAMSUNG if SOC_SAMSUNG +config EXYNOS_ASV + bool "Exynos Adaptive Supply Voltage support" if COMPILE_TEST + depends on (ARCH_EXYNOS && EXYNOS_CHIPID) || COMPILE_TEST + select EXYNOS_ASV_ARM if ARM && ARCH_EXYNOS + +# There is no need to enable these drivers for ARMv8 +config EXYNOS_ASV_ARM + bool "Exynos ASV ARMv7-specific driver extensions" if COMPILE_TEST + depends on EXYNOS_ASV + config EXYNOS_CHIPID bool "Exynos Chipid controller driver" if COMPILE_TEST depends on ARCH_EXYNOS || COMPILE_TEST diff --git a/drivers/soc/samsung/Makefile b/drivers/soc/samsung/Makefile index 3b6a8797416c..edd1d6ea064d 100644 --- a/drivers/soc/samsung/Makefile +++ b/drivers/soc/samsung/Makefile @@ -1,5 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_EXYNOS_ASV) += exynos-asv.o +obj-$(CONFIG_EXYNOS_ASV_ARM) += exynos5422-asv.o + obj-$(CONFIG_EXYNOS_CHIPID) += exynos-chipid.o obj-$(CONFIG_EXYNOS_PMU) += exynos-pmu.o diff --git a/drivers/soc/samsung/exynos-asv.c b/drivers/soc/samsung/exynos-asv.c new file mode 100644 index 000000000000..c55402aa5458 --- /dev/null +++ b/drivers/soc/samsung/exynos-asv.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * Author: Sylwester Nawrocki + * + * Samsung Exynos SoC Adaptive Supply Voltage support + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "exynos-asv.h" +#include "exynos5422-asv.h" + +#define MHZ 1000000U + +static int exynos_asv_update_cpu_opps(struct exynos_asv *asv, + struct device *cpu) +{ + struct exynos_asv_subsys *subsys = NULL; + struct dev_pm_opp *opp; + unsigned int opp_freq; + int i; + + for (i = 0; i < ARRAY_SIZE(asv->subsys); i++) { + if (of_device_is_compatible(cpu->of_node, + asv->subsys[i].cpu_dt_compat)) { + subsys = &asv->subsys[i]; + break; + } + } + if (!subsys) + return -EINVAL; + + for (i = 0; i < subsys->table.num_rows; i++) { + unsigned int new_volt, volt; + int ret; + + opp_freq = exynos_asv_opp_get_frequency(subsys, i); + + opp = dev_pm_opp_find_freq_exact(cpu, opp_freq * MHZ, true); + if (IS_ERR(opp)) { + dev_info(asv->dev, "cpu%d opp%d, freq: %u missing\n", + cpu->id, i, opp_freq); + + continue; + } + + volt = dev_pm_opp_get_voltage(opp); + new_volt = asv->opp_get_voltage(subsys, i, volt); + dev_pm_opp_put(opp); + + if (new_volt == volt) + continue; + + ret = dev_pm_opp_adjust_voltage(cpu, opp_freq * MHZ, + new_volt, new_volt, new_volt); + if (ret < 0) + dev_err(asv->dev, + "Failed to adjust OPP %u Hz/%u uV for cpu%d\n", + opp_freq, new_volt, cpu->id); + else + dev_dbg(asv->dev, + "Adjusted OPP %u Hz/%u -> %u uV, cpu%d\n", + opp_freq, volt, new_volt, cpu->id); + } + + return 0; +} + +static int exynos_asv_update_opps(struct exynos_asv *asv) +{ + struct opp_table *last_opp_table = NULL; + struct device *cpu; + int ret, cpuid; + + for_each_possible_cpu(cpuid) { + struct opp_table *opp_table; + + cpu = get_cpu_device(cpuid); + if (!cpu) + continue; + + opp_table = dev_pm_opp_get_opp_table(cpu); + if (IS_ERR(opp_table)) + continue; + + if (!last_opp_table || opp_table != last_opp_table) { + last_opp_table = opp_table; + + ret = exynos_asv_update_cpu_opps(asv, cpu); + if (ret < 0) + dev_err(asv->dev, "Couldn't udate OPPs for cpu%d\n", + cpuid); + } + + dev_pm_opp_put_opp_table(opp_table); + } + + return 0; +} + +static int exynos_asv_probe(struct platform_device *pdev) +{ + int (*probe_func)(struct exynos_asv *asv); + struct exynos_asv *asv; + struct device *cpu_dev; + u32 product_id = 0; + int ret, i; + + cpu_dev = get_cpu_device(0); + ret = dev_pm_opp_get_opp_count(cpu_dev); + if (ret < 0) + return -EPROBE_DEFER; + + asv = devm_kzalloc(&pdev->dev, sizeof(*asv), GFP_KERNEL); + if (!asv) + return -ENOMEM; + + asv->chipid_regmap = syscon_node_to_regmap(pdev->dev.of_node); + if (IS_ERR(asv->chipid_regmap)) { + dev_err(&pdev->dev, "Could not find syscon regmap\n"); + return PTR_ERR(asv->chipid_regmap); + } + + regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PRO_ID, &product_id); + + switch (product_id & EXYNOS_MASK) { + case 0xE5422000: + probe_func = exynos5422_asv_init; + break; + default: + dev_err(&pdev->dev, "Unsupported product ID: %#x", product_id); + return -ENODEV; + } + + ret = of_property_read_u32(pdev->dev.of_node, "samsung,asv-bin", + &asv->of_bin); + if (ret < 0) + asv->of_bin = -EINVAL; + + asv->dev = &pdev->dev; + dev_set_drvdata(&pdev->dev, asv); + + for (i = 0; i < ARRAY_SIZE(asv->subsys); i++) + asv->subsys[i].asv = asv; + + ret = probe_func(asv); + if (ret < 0) + return ret; + + return exynos_asv_update_opps(asv); +} + +static const struct of_device_id exynos_asv_of_device_ids[] = { + { .compatible = "samsung,exynos4210-chipid" }, + {} +}; + +static struct platform_driver exynos_asv_driver = { + .driver = { + .name = "exynos-asv", + .of_match_table = exynos_asv_of_device_ids, + }, + .probe = exynos_asv_probe, +}; +module_platform_driver(exynos_asv_driver); diff --git a/drivers/soc/samsung/exynos-asv.h b/drivers/soc/samsung/exynos-asv.h new file mode 100644 index 000000000000..14b4fedf2ddd --- /dev/null +++ b/drivers/soc/samsung/exynos-asv.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * Author: Sylwester Nawrocki + * + * Samsung Exynos SoC Adaptive Supply Voltage support + */ +#ifndef __LINUX_SOC_EXYNOS_ASV_H +#define __LINUX_SOC_EXYNOS_ASV_H + +enum { + EXYNOS_ASV_SUBSYS_ID_ARM, + EXYNOS_ASV_SUBSYS_ID_EGL = EXYNOS_ASV_SUBSYS_ID_ARM, + EXYNOS_ASV_SUBSYS_ID_KFC, + EXYNOS_ASV_SUBSYS_ID_INT, + EXYNOS_ASV_SUBSYS_ID_MIF, + EXYNOS_ASV_SUBSYS_ID_G3D, + EXYNOS_ASV_SUBSYS_ID_CAM, + EXYNOS_ASV_SUBSYS_ID_MAX +}; + +struct regmap; + +/* HPM, IDS values to select target group */ +struct asv_limit_entry { + unsigned int hpm; + unsigned int ids; +}; + +struct exynos_asv_table { + unsigned int num_rows; + unsigned int num_cols; + u32 *buf; +}; + +struct exynos_asv_subsys { + struct exynos_asv *asv; + const char *cpu_dt_compat; + int id; + struct exynos_asv_table table; + + unsigned int base_volt; + unsigned int offset_volt_h; + unsigned int offset_volt_l; +}; + +struct exynos_asv { + struct device *dev; + struct regmap *chipid_regmap; + struct exynos_asv_subsys subsys[2]; + + int (*opp_get_voltage)(struct exynos_asv_subsys *subs, int level, + unsigned int voltage); + unsigned int group; + unsigned int table; + + /* True if SG fields from PKG_ID register should be used */ + bool use_sg; + /* ASV bin read from DT */ + int of_bin; +}; + +static inline u32 __asv_get_table_entry(struct exynos_asv_table *table, + unsigned int row, unsigned int col) +{ + return table->buf[row * (table->num_cols) + col]; +} + +static inline u32 exynos_asv_opp_get_voltage(struct exynos_asv_subsys *subsys, + unsigned int level, unsigned int group) +{ + return __asv_get_table_entry(&subsys->table, level, group + 1); +} + +static inline u32 exynos_asv_opp_get_frequency(struct exynos_asv_subsys *subsys, + unsigned int level) +{ + return __asv_get_table_entry(&subsys->table, level, 0); +} + +#endif /* __LINUX_SOC_EXYNOS_ASV_H */ diff --git a/drivers/soc/samsung/exynos5422-asv.c b/drivers/soc/samsung/exynos5422-asv.c new file mode 100644 index 000000000000..21c936e1037a --- /dev/null +++ b/drivers/soc/samsung/exynos5422-asv.c @@ -0,0 +1,509 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Samsung Exynos 5422 SoC Adaptive Supply Voltage support + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "exynos-asv.h" + +#define ASV_GROUPS_NUM 14 +#define ASV_ARM_DVFS_NUM 20 +#define ASV_ARM_BIN2_DVFS_NUM 17 +#define ASV_KFC_DVFS_NUM 14 +#define ASV_KFC_BIN2_DVFS_NUM 12 + +/* + * This array is a set of 4 ASV data tables, first column of each ASV table + * contains frequency value in MHz and subsequent columns contain the CPU + * cluster's supply voltage values in uV. + * In order to create a set of OPPs for specific SoC revision one of the voltage + * columns (1...14) from one of the tables (0...3) is selected during + * initialization. The are separate ASV tables for the big (ARM) and little + * (KFC) CPU cluster. Only OPPs which are already defined in devicetree + * will be updated. + */ + +static const u32 asv_arm_table[][ASV_ARM_DVFS_NUM][ASV_GROUPS_NUM + 1] = { +{ + /* ARM 0, 1 */ + { 2100, 1362500, 1362500, 1350000, 1337500, 1325000, 1312500, 1300000, + 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000 }, + { 2000, 1312500, 1312500, 1300000, 1287500, 1275000, 1262500, 1250000, + 1237500, 1225000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1900, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500, 1175000, + 1162500, 1150000, 1162500, 1150000, 1137500, 1125000, 1112500 }, + { 1800, 1200000, 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, + 1112500, 1100000, 1112500, 1100000, 1087500, 1075000, 1062500 }, + { 1700, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, 1087500, + 1075000, 1062500, 1075000, 1062500, 1050000, 1037500, 1025000 }, + { 1600, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, 1050000, + 1037500, 1025000, 1037500, 1025000, 1012500, 1000000, 987500 }, + { 1500, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, + 1000000, 987500, 1000000, 987500, 975000, 962500, 950000 }, + { 1400, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, + 975000, 962500, 975000, 962500, 950000, 937500, 925000 }, + { 1300, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000, + 962500, 950000, 962500, 950000, 937500, 925000, 912500 }, + { 1200, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 937500, 925000, 912500, 900000, 900000 }, + { 1100, 1000000, 987500, 975000, 962500, 950000, 937500, 925000, + 912500, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 1000, 975000, 962500, 950000, 937500, 925000, 912500, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 900, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 800, 925000, 912500, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 700, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* ARM 2 */ + { 2100, 1362500, 1362500, 1350000, 1337500, 1325000, 1312500, 1300000, + 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000 }, + { 2000, 1312500, 1312500, 1312500, 1300000, 1275000, 1262500, 1250000, + 1237500, 1225000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1900, 1262500, 1250000, 1250000, 1237500, 1212500, 1200000, 1187500, + 1175000, 1162500, 1175000, 1162500, 1150000, 1137500, 1125000 }, + { 1800, 1212500, 1200000, 1187500, 1175000, 1162500, 1150000, 1137500, + 1125000, 1112500, 1125000, 1112500, 1100000, 1087500, 1075000 }, + { 1700, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, + 1087500, 1075000, 1087500, 1075000, 1062500, 1050000, 1037500 }, + { 1600, 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, + 1050000, 1037500, 1050000, 1037500, 1025000, 1012500, 1000000 }, + { 1500, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 1012500, 1000000, 987500, 975000, 962500 }, + { 1400, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, + 987500, 975000, 987500, 975000, 962500, 950000, 937500 }, + { 1300, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000, + 962500, 950000, 962500, 950000, 937500, 925000, 912500 }, + { 1200, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 937500, 925000, 912500, 900000, 900000 }, + { 1100, 1000000, 987500, 975000, 962500, 950000, 937500, 925000, + 912500, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 1000, 975000, 962500, 950000, 937500, 925000, 912500, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 900, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 800, 925000, 912500, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 700, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* ARM 3 */ + { 2100, 1362500, 1362500, 1350000, 1337500, 1325000, 1312500, 1300000, + 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000 }, + { 2000, 1312500, 1312500, 1300000, 1287500, 1275000, 1262500, 1250000, + 1237500, 1225000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1900, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500, + 1175000, 1162500, 1175000, 1162500, 1150000, 1137500, 1125000 }, + { 1800, 1212500, 1200000, 1187500, 1175000, 1162500, 1150000, 1137500, + 1125000, 1112500, 1125000, 1112500, 1100000, 1087500, 1075000 }, + { 1700, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, + 1087500, 1075000, 1087500, 1075000, 1062500, 1050000, 1037500 }, + { 1600, 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, + 1050000, 1037500, 1050000, 1037500, 1025000, 1012500, 1000000 }, + { 1500, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 1012500, 1000000, 987500, 975000, 962500 }, + { 1400, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, + 987500, 975000, 987500, 975000, 962500, 950000, 937500 }, + { 1300, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000, + 962500, 950000, 962500, 950000, 937500, 925000, 912500 }, + { 1200, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 937500, 925000, 912500, 900000, 900000 }, + { 1100, 1000000, 987500, 975000, 962500, 950000, 937500, 925000, + 912500, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 1000, 975000, 962500, 950000, 937500, 925000, 912500, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 900, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 800, 925000, 912500, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 700, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* ARM bin 2 */ + { 1800, 1237500, 1225000, 1212500, 1200000, 1187500, 1175000, 1162500, + 1150000, 1137500, 1150000, 1137500, 1125000, 1112500, 1100000 }, + { 1700, 1200000, 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, + 1112500, 1100000, 1112500, 1100000, 1087500, 1075000, 1062500 }, + { 1600, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, 1087500, + 1075000, 1062500, 1075000, 1062500, 1050000, 1037500, 1025000 }, + { 1500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, 1050000, + 1037500, 1025000, 1037500, 1025000, 1012500, 1000000, 987500 }, + { 1400, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 1012500, 1000000, 987500, 975000, 962500 }, + { 1300, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, + 1000000, 987500, 1000000, 987500, 975000, 962500, 950000 }, + { 1200, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, + 975000, 962500, 975000, 962500, 950000, 937500, 925000 }, + { 1100, 1037500, 1025000, 1012500, 1000000, 987500, 975000, 962500, + 950000, 937500, 950000, 937500, 925000, 912500, 900000 }, + { 1000, 1012500, 1000000, 987500, 975000, 962500, 950000, 937500, + 925000, 912500, 925000, 912500, 900000, 900000, 900000 }, + { 900, 987500, 975000, 962500, 950000, 937500, 925000, 912500, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 800, 962500, 950000, 937500, 925000, 912500, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 700, 937500, 925000, 912500, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +} +}; + +static const u32 asv_kfc_table[][ASV_KFC_DVFS_NUM][ASV_GROUPS_NUM + 1] = { +{ + /* KFC 0, 1 */ + { 1500000, 1300000, 1300000, 1300000, 1287500, 1287500, 1287500, 1275000, + 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1400000, 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, + 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500 }, + { 1300000, 1225000, 1212500, 1200000, 1187500, 1175000, 1162500, 1150000, + 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500 }, + { 1200000, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, + 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500 }, + { 1100000, 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, + 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000 }, + { 1000000, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 987500, 975000, 962500, 950000, 937500 }, + { 900000, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, + 975000, 962500, 950000, 937500, 925000, 912500, 900000 }, + { 800000, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 912500, 900000, 900000, 900000, 900000 }, + { 700000, 987500, 975000, 962500, 950000, 937500, 925000, 912500, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600000, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500000, 912500, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400000, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300000, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200000, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* KFC 2 */ + { 1500, 1300000, 1300000, 1300000, 1287500, 1287500, 1287500, 1275000, + 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1400, 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, + 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500 }, + { 1300, 1225000, 1212500, 1200000, 1187500, 1175000, 1162500, 1150000, + 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500 }, + { 1200, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, + 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500 }, + { 1100, 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, + 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000 }, + { 1000, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 987500, 975000, 962500, 950000, 937500 }, + { 900, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, + 975000, 962500, 950000, 937500, 925000, 912500, 900000 }, + { 800, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 912500, 900000, 900000, 900000, 900000 }, + { 700, 987500, 975000, 962500, 950000, 937500, 925000, 912500, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 912500, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* KFC 3 */ + { 1500, 1300000, 1300000, 1300000, 1287500, 1287500, 1287500, 1275000, + 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500 }, + { 1400, 1275000, 1262500, 1250000, 1237500, 1225000, 1212500, 1200000, + 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500 }, + { 1300, 1225000, 1212500, 1200000, 1187500, 1175000, 1162500, 1150000, + 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500 }, + { 1200, 1175000, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, + 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500 }, + { 1100, 1137500, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, + 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000 }, + { 1000, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, + 1012500, 1000000, 987500, 975000, 962500, 950000, 937500 }, + { 900, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, + 975000, 962500, 950000, 937500, 925000, 912500, 900000 }, + { 800, 1025000, 1012500, 1000000, 987500, 975000, 962500, 950000, + 937500, 925000, 912500, 900000, 900000, 900000, 900000 }, + { 700, 987500, 975000, 962500, 950000, 937500, 925000, 912500, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 600, 950000, 937500, 925000, 912500, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 912500, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +}, { + /* KFC bin 2 */ + { 1300, 1250000, 1237500, 1225000, 1212500, 1200000, 1187500, 1175000, + 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, 1087500 }, + { 1200, 1200000, 1187500, 1175000, 1162500, 1150000, 1137500, 1125000, + 1112500, 1100000, 1087500, 1075000, 1062500, 1050000, 1037500 }, + { 1100, 1162500, 1150000, 1137500, 1125000, 1112500, 1100000, 1087500, + 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, 1000000 }, + { 1000, 1125000, 1112500, 1100000, 1087500, 1075000, 1062500, 1050000, + 1037500, 1025000, 1012500, 1000000, 987500, 975000, 962500 }, + { 900, 1087500, 1075000, 1062500, 1050000, 1037500, 1025000, 1012500, + 1000000, 987500, 975000, 962500, 950000, 937500, 925000 }, + { 800, 1050000, 1037500, 1025000, 1012500, 1000000, 987500, 975000, + 962500, 950000, 937500, 925000, 912500, 900000, 900000 }, + { 700, 1012500, 1000000, 987500, 975000, 962500, 950000, 937500, + 925000, 912500, 900000, 900000, 900000, 900000, 900000 }, + { 600, 975000, 962500, 950000, 937500, 925000, 912500, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 500, 937500, 925000, 912500, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 400, 925000, 912500, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 300, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, + { 200, 900000, 900000, 900000, 900000, 900000, 900000, 900000, + 900000, 900000, 900000, 900000, 900000, 900000, 900000 }, +} +}; + +static const struct asv_limit_entry __asv_limits[ASV_GROUPS_NUM] = { + { 13, 55 }, + { 21, 65 }, + { 25, 69 }, + { 30, 72 }, + { 36, 74 }, + { 43, 76 }, + { 51, 78 }, + { 65, 80 }, + { 81, 82 }, + { 98, 84 }, + { 119, 87 }, + { 135, 89 }, + { 150, 92 }, + { 999, 999 }, +}; + +static int exynos5422_asv_get_group(struct exynos_asv *asv) +{ + unsigned int pkgid_reg, auxi_reg; + int hpm, ids, i; + + regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PKG_ID, &pkgid_reg); + regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_AUX_INFO, &auxi_reg); + + if (asv->use_sg) { + u32 sga = (pkgid_reg >> EXYNOS5422_SG_A_OFFSET) & + EXYNOS5422_SG_A_MASK; + + u32 sgb = (pkgid_reg >> EXYNOS5422_SG_B_OFFSET) & + EXYNOS5422_SG_B_MASK; + + if ((pkgid_reg >> EXYNOS5422_SG_BSIGN_OFFSET) & + EXYNOS5422_SG_BSIGN_MASK) + return sga + sgb; + else + return sga - sgb; + } + + hpm = (auxi_reg >> EXYNOS5422_TMCB_OFFSET) & EXYNOS5422_TMCB_MASK; + ids = (pkgid_reg >> EXYNOS5422_IDS_OFFSET) & EXYNOS5422_IDS_MASK; + + for (i = 0; i < ASV_GROUPS_NUM; i++) { + if (ids <= __asv_limits[i].ids) + break; + if (hpm <= __asv_limits[i].hpm) + break; + } + if (i < ASV_GROUPS_NUM) + return i; + + return 0; +} + +static int __asv_offset_voltage(unsigned int index) +{ + switch (index) { + case 1: + return 12500; + case 2: + return 50000; + case 3: + return 25000; + default: + return 0; + }; +} + +static void exynos5422_asv_offset_voltage_setup(struct exynos_asv *asv) +{ + struct exynos_asv_subsys *subsys; + unsigned int reg, value; + + regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_AUX_INFO, ®); + + /* ARM offset voltage setup */ + subsys = &asv->subsys[EXYNOS_ASV_SUBSYS_ID_ARM]; + + subsys->base_volt = 1000000; + + value = (reg >> EXYNOS5422_ARM_UP_OFFSET) & EXYNOS5422_ARM_UP_MASK; + subsys->offset_volt_h = __asv_offset_voltage(value); + + value = (reg >> EXYNOS5422_ARM_DN_OFFSET) & EXYNOS5422_ARM_DN_MASK; + subsys->offset_volt_l = __asv_offset_voltage(value); + + /* KFC offset voltage setup */ + subsys = &asv->subsys[EXYNOS_ASV_SUBSYS_ID_KFC]; + + subsys->base_volt = 1000000; + + value = (reg >> EXYNOS5422_KFC_UP_OFFSET) & EXYNOS5422_KFC_UP_MASK; + subsys->offset_volt_h = __asv_offset_voltage(value); + + value = (reg >> EXYNOS5422_KFC_DN_OFFSET) & EXYNOS5422_KFC_DN_MASK; + subsys->offset_volt_l = __asv_offset_voltage(value); +} + +static int exynos5422_asv_opp_get_voltage(struct exynos_asv_subsys *subsys, + int level, unsigned int volt) +{ + unsigned int asv_volt; + + if (level >= subsys->table.num_rows) + return volt; + + asv_volt = exynos_asv_opp_get_voltage(subsys, level, + subsys->asv->group); + + if (volt > subsys->base_volt) + asv_volt += subsys->offset_volt_h; + else + asv_volt += subsys->offset_volt_l; + + return asv_volt; +} + +static unsigned int exynos5422_asv_parse_table(struct exynos_asv *asv, + unsigned int pkg_id) +{ + return (pkg_id >> EXYNOS5422_TABLE_OFFSET) & EXYNOS5422_TABLE_MASK; +} + +static bool exynos5422_asv_parse_bin2(struct exynos_asv *asv, + unsigned int pkg_id) +{ + return (pkg_id >> EXYNOS5422_BIN2_OFFSET) & EXYNOS5422_BIN2_MASK; +} + +static bool exynos5422_asv_parse_sg(struct exynos_asv *asv, + unsigned int pkg_id) +{ + return (pkg_id >> EXYNOS5422_USESG_OFFSET) & EXYNOS5422_USESG_MASK; +} + +int exynos5422_asv_init(struct exynos_asv *asv) +{ + struct exynos_asv_subsys *subsys; + unsigned int table_index; + unsigned int pkg_id; + bool bin2; + + regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PKG_ID, &pkg_id); + + if (asv->of_bin == 2) { + bin2 = true; + asv->use_sg = false; + } else { + asv->use_sg = exynos5422_asv_parse_sg(asv, pkg_id); + bin2 = exynos5422_asv_parse_bin2(asv, pkg_id); + } + + asv->group = exynos5422_asv_get_group(asv); + asv->table = exynos5422_asv_parse_table(asv, pkg_id); + + exynos5422_asv_offset_voltage_setup(asv); + + if (bin2) { + table_index = 3; + } else { + if (asv->table == 2 || asv->table == 3) + table_index = asv->table - 1; + else + table_index = 0; + } + + subsys = &asv->subsys[EXYNOS_ASV_SUBSYS_ID_ARM]; + subsys->cpu_dt_compat = "arm,cortex-a15"; + if (bin2) + subsys->table.num_rows = ASV_ARM_BIN2_DVFS_NUM; + else + subsys->table.num_rows = ASV_ARM_DVFS_NUM; + subsys->table.num_cols = ASV_GROUPS_NUM + 1; + subsys->table.buf = (u32 *)asv_arm_table[table_index]; + + subsys = &asv->subsys[EXYNOS_ASV_SUBSYS_ID_KFC]; + subsys->cpu_dt_compat = "arm,cortex-a7"; + if (bin2) + subsys->table.num_rows = ASV_KFC_BIN2_DVFS_NUM; + else + subsys->table.num_rows = ASV_KFC_DVFS_NUM; + subsys->table.num_cols = ASV_GROUPS_NUM + 1; + subsys->table.buf = (u32 *)asv_kfc_table[table_index]; + + asv->opp_get_voltage = exynos5422_asv_opp_get_voltage; + + return 0; +} diff --git a/drivers/soc/samsung/exynos5422-asv.h b/drivers/soc/samsung/exynos5422-asv.h new file mode 100644 index 000000000000..d8f108fcc39b --- /dev/null +++ b/drivers/soc/samsung/exynos5422-asv.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Samsung Exynos 5422 SoC Adaptive Supply Voltage support + */ + +#ifndef __EXYNOS5422_ASV_H +#define __EXYNOS5422_ASV_H + +#include + +struct exynos_asv; + +#ifdef CONFIG_EXYNOS_ASV_ARM +int exynos5422_asv_init(struct exynos_asv *asv); +#else +static inline int exynos5422_asv_init(struct exynos_asv *asv) +{ + return -ENOTSUPP; +} +#endif + +#endif /* __EXYNOS5422_ASV_H */ From patchwork Tue Sep 10 12:36:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 11139441 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 72EC01709 for ; Tue, 10 Sep 2019 12:36:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 464BD21019 for ; Tue, 10 Sep 2019 12:36:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="I8cPsGK0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404441AbfIJMgq (ORCPT ); Tue, 10 Sep 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eusmgms2.samsung.com (EUCPMTA) with SMTP id DF.EC.04117.AD8977D5; Tue, 10 Sep 2019 13:36:42 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190910123642eusmtip1bf306ff4d31bb286429f739389964b05~DE_ye0b5w0745507455eusmtip1O; Tue, 10 Sep 2019 12:36:42 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 4/6] ARM: EXYNOS: Enable exynos-asv driver for ARCH_EXYNOS Date: Tue, 10 Sep 2019 14:36:16 +0200 Message-Id: <20190910123618.27985-5-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: 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20190910123643eucas1p2666bc55d5b36efbbb02565793a2c1f86 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123643eucas1p2666bc55d5b36efbbb02565793a2c1f86 References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Enable exynos-asv driver for Exynos 32-bit SoCs. Signed-off-by: Sylwester Nawrocki --- Changes since v1 (RFC): - none --- arch/arm/mach-exynos/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index f83786640f94..bba61354c340 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -13,6 +13,7 @@ menuconfig ARCH_EXYNOS select ARM_AMBA select ARM_GIC select COMMON_CLK_SAMSUNG + select EXYNOS_ASV select EXYNOS_CHIPID select EXYNOS_THERMAL select EXYNOS_PMU From patchwork Tue Sep 10 12:36:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 11139447 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BE50314E5 for ; Tue, 10 Sep 2019 12:36:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 927D4208E4 for ; 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Tue, 10 Sep 2019 12:36:44 +0000 (GMT) X-AuditID: cbfec7f4-ae1ff700000010d5-d9-5d7798dcfccc Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id E1.FC.04117.CD8977D5; Tue, 10 Sep 2019 13:36:44 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190910123643eusmtip178f4201fdedfe656c43931711d9edf6c~DE_zw0J6e0745507455eusmtip1Q; Tue, 10 Sep 2019 12:36:43 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 5/6] ARM: dts: Add "syscon" compatible string to chipid node Date: Tue, 10 Sep 2019 14:36:17 +0200 Message-Id: <20190910123618.27985-6-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprAKsWRmVeSWpSXmKPExsWy7djPc7p3ZpTHGjzZZm6xccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBLFZZOSmpNZllqkb5fAlbFow0WWgk3sFb/ezGBuYGxl 62Lk5JAQMJE4ueY/UxcjF4eQwApGiYYNOxkhnC+MEifvfGODcD4DZe7/Y4Rp2XGwEaplOaPE sZYDrCAJsJYlm71AbDYBQ4neo31gDSIC6hKvTv1nBmlgFljHJLFs1jKwhLBAoMTZy9PAbBYB VYm52xeyg9i8AtYS/Ye/MEFsk5dYveEAM4jNKWAjcWr3LrDNEgLd7BJ7vhyCOslF4t71c+wQ trDEq+NboGwZidOTe1ggGpoZJXp232aHcCYwStw/vgCq21ri8PGLQD9wAN2nKbF+lz5E2FFi +8pHjCBhCQE+iRtvBUHCzEDmpG3TmSHCvBIdbUIQ1SoSv1dNh7pZSqL7yX8WCNtD4vWvhyyQ 0OpnlLh25T/LBEb5WQjLFjAyrmIUTy0tzk1PLTbKSy3XK07MLS7NS9dLzs/dxAhMJ6f/Hf+y g3HXn6RDjAIcjEo8vA/aymOFWBPLiitzDzFKcDArifBe7yuNFeJNSaysSi3Kjy8qzUktPsQo zcGiJM5bzfAgWkggPbEkNTs1tSC1CCbLxMEp1cCYrcNT4O31JCiOjU3rMhfri7tl6srKPyVT +JkjL7au/qp9ftXebWtW5dys0V8v1hATbvHK+c4aLvMmz5hfyU2rrG7mB7Tebvd9Gc3zN1Oh cGJJ002vTYuuZ+5/1DBnj+FBxVa2jLSr0zf1lzor6ZziLt3DciNca/onyYTdF8quShdstb3J oK7EUpyRaKjFXFScCAB5+ykIIwMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrHLMWRmVeSWpSXmKPExsVy+t/xu7p3ZpTHGiz8wW2xccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl7Fow0WWgk3sFb/ezGBuYGxl62Lk5JAQMJHYcbCRCcQWEljK KNHTVdDFyAEUl5KY36IEUSIs8edaF1A5F1DJJ0aJT51HWEESbAKGEr1H+xhB6kUENCX2rgOr YRbYwSSx99lfsPnCAv4Sjc1tYPUsAqoSc7cvZAexeQWsJfoPf2GCWCAvsXrDAWYQm1PARuLU 7l1Q91hLvP44hXUCI98CRoZVjCKppcW56bnFRnrFibnFpXnpesn5uZsYgWG97djPLTsYu94F H2IU4GBU4uHtaCmPFWJNLCuuzD3EKMHBrCTCe72vNFaINyWxsiq1KD++qDQntfgQoynQUROZ pUST84Exl1cSb2hqaG5haWhubG5sZqEkztshcDBGSCA9sSQ1OzW1ILUIpo+Jg1OqgVF5pfNf 06k7XnKq/byZp8HgL/zpqRj/rOMWgn6u0vNKGl65ntymlNK+JT/zSMt9s+L3h35dlwlLt7++ oSK5/qTVSaYVi+eXXTtSVWA24Vh9Xpg388qqTocl0e+cNzhEGv0+mDXXOWc5a42G6VQetxk+ /+ye73opVLfjlKforDnGj2d3GNR6xSmxFGckGmoxFxUnAgCVc75rgQIAAA== X-CMS-MailID: 20190910123644eucas1p234a55b19e68046900539195f55ea60dd X-Msg-Generator: CA X-RootMTR: 20190910123644eucas1p234a55b19e68046900539195f55ea60dd X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123644eucas1p234a55b19e68046900539195f55ea60dd References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The CHIP ID block in addition to exact chip revision information contains data and control registers for ASV (Adaptive Supply Voltage) and ABB (Adaptive Body Bias). Add "syscon" compatible so the CHIPID block can be shared by respective drivers. Signed-off-by: Sylwester Nawrocki --- Changes since v2: - none Changes since v1 (RFC): - new patch --- arch/arm/boot/dts/exynos5.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.17.1 diff --git a/arch/arm/boot/dts/exynos5.dtsi b/arch/arm/boot/dts/exynos5.dtsi index 67f9b4504a42..4801ca759feb 100644 --- a/arch/arm/boot/dts/exynos5.dtsi +++ b/arch/arm/boot/dts/exynos5.dtsi @@ -35,8 +35,8 @@ #size-cells = <1>; ranges; - chipid@10000000 { - compatible = "samsung,exynos4210-chipid"; + chipid: chipid@10000000 { + compatible = "samsung,exynos4210-chipid", "syscon"; reg = <0x10000000 0x100>; }; From patchwork Tue Sep 10 12:36:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 11139445 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id ED04D1709 for ; 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Tue, 10 Sep 2019 12:36:46 +0000 (GMT) X-AuditID: cbfec7f4-ae1ff700000010d5-e1-5d7798dfcb8d Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 16.88.04166.ED8977D5; Tue, 10 Sep 2019 13:36:46 +0100 (BST) Received: from AMDC3061.DIGITAL.local (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190910123646eusmtip198c8b1c4f53d6d2961b8c402bdebf128~DE_2HdSg90745507455eusmtip1S; Tue, 10 Sep 2019 12:36:46 +0000 (GMT) From: Sylwester Nawrocki To: krzk@kernel.org, vireshk@kernel.org Cc: robh+dt@kernel.org, kgene@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, Sylwester Nawrocki Subject: [PATCH v4 6/6] ARM: dts: Add samsung,asv-bin property for odroidxu3-lite Date: Tue, 10 Sep 2019 14:36:18 +0200 Message-Id: <20190910123618.27985-7-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190910123618.27985-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupnleLIzCtJLcpLzFFi42LZduznOd37M8pjDb4t0bDYOGM9q8X8I+dY Lfofv2a2OH9+A7vFpsfXWC0u75rDZvG59wijxYzz+5gs1h65y27RuvcIu8XhN+2sFpsfHGNz 4PHYtKqTzWPzknqPvi2rGD0+b5ILYInisklJzcksSy3St0vgyrj+rJOp4Atbxc7eG4wNjDdY uxg5OSQETCROd78Asrk4hARWMEo0/XgC5XxhlFhzcz4jhPOZUWL54k3sXYwcYC3Pe1gg4ssZ JXYsaWaD6+j+/40dZC6bgKFE79E+RhBbREBd4tWp/8wgRcwC65gkls1aBpYQFgiWaHj7HayB RUBVYmHPfjYQm1fAWuLwnL1sEAfKS6zecIAZxOYUsJE4tXsXE8ggCYF+dokVG/awQxS5SMzp PQr1kbDEq+NboOIyEqcnQ9wqIdDMKNGz+zY7hDOBUeL+8QWMEFVA645fZAV5jllAU2L9Ln2I sKPEpDMvGSF+5pO48VYQJMwMZE7aNp0ZIswr0dEmBFGtIvF71XQmCFtKovvJfxaIEg+JPX3Q AOpnlHg6bQ3LBEb5WQi7FjAyrmIUTy0tzk1PLTbKSy3XK07MLS7NS9dLzs/dxAhMJqf/Hf+y g3HXn6RDjAIcjEo8vA/aymOFWBPLiitzDzFKcDArifBe7yuNFeJNSaysSi3Kjy8qzUktPsQo zcGiJM5bzfAgWkggPbEkNTs1tSC1CCbLxMEp1cAYZLHm+IPD9clnqw0XHzC8/f3/K6n9zi7N oeFiAVsfPMvYXcnCH3o/7CvfPaOCf3f8V7P3vRda+rH75uSbqk83C+ptFnzupaAqMsX14sfw yBWn8k59sKw0f88dOM1g/0Rt1x4he1XveXGrVRi/xgR825qdPm+HekFnmumXFV4rLFmkQ7t4 Kp8osRRnJBpqMRcVJwIA2vQ1wyIDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrHLMWRmVeSWpSXmKPExsVy+t/xu7r3ZpTHGjz8om2xccZ6Vov5R86x WvQ/fs1scf78BnaLTY+vsVpc3jWHzeJz7xFGixnn9zFZrD1yl92ide8RdovDb9pZLTY/OMbm wOOxaVUnm8fmJfUefVtWMXp83iQXwBKlZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwe a2VkqqRvZ5OSmpNZllqkb5egl3H9WSdTwRe2ip29NxgbGG+wdjFycEgImEg872HpYuTiEBJY yigx4/sydoi4lMT8FqUuRk4gU1jiz7UuNoiaT4wSf6/fYAZJsAkYSvQe7WMEqRcR0JTYuw6s hllgB5PE3md/2UBqhAUCJdqPvWQBsVkEVCUW9uwHi/MKWEscnrOXDWKBvMTqDQfAZnIK2Eic 2r2LCcQWAqp5/XEK6wRGvgWMDKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzECw3rbsZ+bdzBe 2hh8iFGAg1GJh/dBW3msEGtiWXFl7iFGCQ5mJRHe632lsUK8KYmVValF+fFFpTmpxYcYTYGO msgsJZqcD4y5vJJ4Q1NDcwtLQ3Njc2MzCyVx3g6BgzFCAumJJanZqakFqUUwfUwcnFINjDaa EfExV/5/8xCeclx+OeMfJan1wod5Jgc+F/N4Ji2a4V127Sxj1ZUZu/n7JwYWFx55YcMY+Pbe lNdXPaK/Hb11ll/6a+OO6nVnn56IcRU9fNrxhbH5RJ4Gl3OCG5U4/33SiFoUk39wia/ajp4U K6HavYU/956adfHfeuGS8M7nZmUrnwcG3ldiKc5INNRiLipOBACk+bOigQIAAA== X-CMS-MailID: 20190910123647eucas1p176bc817bbdae813e5aa9ab4745f9c285 X-Msg-Generator: CA X-RootMTR: 20190910123647eucas1p176bc817bbdae813e5aa9ab4745f9c285 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190910123647eucas1p176bc817bbdae813e5aa9ab4745f9c285 References: <20190910123618.27985-1-s.nawrocki@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org The Exynos5422 SoC used on Odroid XU3 Lite boards belongs to a special ASV bin but this information cannot be read from the CHIPID block registers. Add samsung,asv-bin property for XU3 Lite to ensure the ASV bin is properly determined. Signed-off-by: Sylwester Nawrocki --- Changes since v2: - none Changes since v1 (RFC): - new patch --- arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts | 4 ++++ 1 file changed, 4 insertions(+) -- 2.17.1 diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts index c19b5a51ca44..a31ca2ef750f 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts @@ -26,6 +26,10 @@ status = "disabled"; }; +&chipid { + samsung,asv-bin = <2>; +}; + &pwm { /* * PWM 0 -- fan