From patchwork Mon Jul 15 12:04:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamil Konieczny X-Patchwork-Id: 11043655 X-Patchwork-Delegate: viresh.linux@gmail.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 700521800 for ; Mon, 15 Jul 2019 12:05:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 60B2F26E16 for ; Mon, 15 Jul 2019 12:05:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 54B2B2844C; Mon, 15 Jul 2019 12:05:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F192328420 for ; 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Mon, 15 Jul 2019 12:04:29 +0000 (GMT) From: Kamil Konieczny To: k.konieczny@partner.samsung.com Cc: Bartlomiej Zolnierkiewicz , Marek Szyprowski , Chanwoo Choi , Krzysztof Kozlowski , Kukjin Kim , Kyungmin Park , Mark Rutland , MyungJoo Ham , Nishanth Menon , Rob Herring , Stephen Boyd , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v2 1/4] opp: core: add regulators enable and disable Date: Mon, 15 Jul 2019 14:04:13 +0200 Message-Id: <20190715120416.3561-2-k.konieczny@partner.samsung.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190715120416.3561-1-k.konieczny@partner.samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01SWUwTQRh29ugu1epSSBir8agxinJINHESxaASs4+EBzUaLFU2QKBVuxyi D4IH0kYR0CgUPIgXIShQrlKKB1bWxkoDJHgQFAQ1QSDYqmkjiLSLx9s33zH/90+GxuUDpIJO 1WZwOq06XSmREs2dXme4My0sYcOUNxDVl9aS6NW3zyS6YesiUeHDGYAuDn/BkdNZR6GXp8Yo ZBruI1GvpUKC3BdsAJU6H2Lovm2AQndedWOoP69KgsY8LzF0tt1GoV999QRqGOyUxMjZmus1 gDVV6yVsw+2T7JMJK8YWNlYDVnjdgrFu07I4ap90axKXnprF6SK3JUpT+vuLqSNdsmP2x7ty wbX5BkDTkNkE77yJMgApLWeqABwyfgTi4RuAtqk8Ujy4ASxwNeAGEOBP1LeX4qJwD8CiyXzi b0T/c9LvkjCb4YcWB+bDwcwqeOndVX8CZ7wErOutp3xCEBML+ybfUr4iBLMaGupCfbSM2Qnd 0y5MnLYc6s1thA8HzNrN7zsp0RMI7WUjfh6f9ZxuKvffD5lxCrbetZBiOBb2VFolIg6Co0Ij JeKl8MWl84SIs+HHykJKDJ8BcPDc1zlhC3wqdJO+cjgTCmstkSK9HZaU3wXi4y2Er8cDxQ4L YUmzb0cfLYMF+XLRHQ6vzzjm2iyBhpkHc5iFtgkHKAIrjf9tY/xvG+O/uTcBXg1CuExek8zx UVouO4JXa/hMbXLEocMaE5j9dC9+CS4z+N5zsAMwNFAukMUkrU+Qk+osPkfTASCNK4Nl0d9n KVmSOuc4pzus0mWmc3wHWEITyhDZiXmD++VMsjqDS+O4I5zuj4rRAYpcQFc43bc8V6IcsZ6M R+sK9wrLVDGCq9QTTXHePa0w7oDnzEiuUmHcvidHZQ96/ElbbLklzxuKteunLDdUxfOnd/QU CBvXCo9+oH5hw+gYZmyKbxurFMISj/54VrE4oslwuXtNGcUnhnX1hqwIfr57kWtiNNRaedFc obDGKyKVBJ+ijlqH63j1b6jsIkRwAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDIsWRmVeSWpSXmKPExsVy+t/xu7rnsnViDdZuV7fYOGM9q8X1L89Z LeYfOcdq0bfvP6NF/+PXzBbnz29gtzjb9IbdYtPja6wWl3fNYbP43HuE0WLG+X1MFmuP3GW3 WHr9IpPF7cYVbBZvfpxlsmjde4Td4t+1jSwWmx8cY3MQ8lgzbw2jx6ZVnWwem5fUexx8t4fJ o2/LKkaP4ze2M3l83iQXwB6lZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwea2VkqqRv Z5OSmpNZllqkb5egl3H79kT2gnO8FScPuDUwzuXuYuTkkBAwkdi4dwZzFyMXh5DAUkaJpZP+ M0MkpCUaT69mgrCFJf5c62KDKPrEKLHq/BGwBJuAucSj7WfAbBEBZYnJ96aDTWIW6GSVWPHk CBtIQljAReLah1vsXYwcHCwCqhJdGzRBwrwCzhKf/36CWiAv0bljNwuIzQlUvuP+MXYQWwio puVVPwtEvaDEyZlPwGxmoPrmrbOZJzAKzEKSmoUktYCRaRWjSGppcW56brGhXnFibnFpXrpe cn7uJkZgTG479nPzDsZLG4MPMQpwMCrx8DqkaMcKsSaWFVfmHmKU4GBWEuG1/QoU4k1JrKxK LcqPLyrNSS0+xGgK9MNEZinR5HxgusgriTc0NTS3sDQ0NzY3NrNQEuftEDgYIySQnliSmp2a WpBaBNPHxMEp1QB03zLVSWWLLLzuy0zx/N6+5XrU7/iZdwRW737eFsroNkFwa+1lE7b1zW5X TrakzZ67aPr8qq2S516n25sHtuw9G/m3WiNg546AsysPvju9c9aLIMWz1RtlJDqvnVkYedJk nsbj1fPYTC5fjehr2qKW+GH7Eeerp7nOzxMznR6y/eU7/bbcqO8CSizFGYmGWsxFxYkAHY07 CN8CAAA= X-CMS-MailID: 20190715120430eucas1p19dddcc93756e6a110d3476229f9428b3 X-Msg-Generator: CA X-RootMTR: 20190715120430eucas1p19dddcc93756e6a110d3476229f9428b3 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190715120430eucas1p19dddcc93756e6a110d3476229f9428b3 References: <20190715120416.3561-1-k.konieczny@partner.samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add enable regulators to dev_pm_opp_set_regulators() and disable regulators to dev_pm_opp_put_regulators(). This prepares for converting exynos-bus devfreq driver to use dev_pm_opp_set_rate(). Signed-off-by: Kamil Konieczny Reviewed-by: Chanwoo Choi --- Changes in v2: - move regulator enable and disable into loop --- drivers/opp/core.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 0e7703fe733f..069c5cf8827e 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -1570,6 +1570,10 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev, goto free_regulators; } + ret = regulator_enable(reg); + if (ret < 0) + goto disable; + opp_table->regulators[i] = reg; } @@ -1582,9 +1586,15 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev, return opp_table; +disable: + regulator_put(reg); + --i; + free_regulators: - while (i != 0) - regulator_put(opp_table->regulators[--i]); + for (; i >= 0; --i) { + regulator_disable(opp_table->regulators[i]); + regulator_put(opp_table->regulators[i]); + } kfree(opp_table->regulators); opp_table->regulators = NULL; @@ -1610,8 +1620,10 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table) /* Make sure there are no concurrent readers while updating opp_table */ WARN_ON(!list_empty(&opp_table->opp_list)); - for (i = opp_table->regulator_count - 1; i >= 0; i--) + for (i = opp_table->regulator_count - 1; i >= 0; i--) { + regulator_disable(opp_table->regulators[i]); regulator_put(opp_table->regulators[i]); + } _free_set_opp_data(opp_table); From patchwork Mon Jul 15 12:04:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamil Konieczny X-Patchwork-Id: 11043651 X-Patchwork-Delegate: viresh.linux@gmail.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 64DDA1395 for ; Mon, 15 Jul 2019 12:04:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4B30E28420 for ; Mon, 15 Jul 2019 12:04:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3E7BF28450; Mon, 15 Jul 2019 12:04:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 79A1128420 for ; 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Mon, 15 Jul 2019 12:04:30 +0000 (GMT) From: Kamil Konieczny To: k.konieczny@partner.samsung.com Cc: Bartlomiej Zolnierkiewicz , Marek Szyprowski , Chanwoo Choi , Krzysztof Kozlowski , Kukjin Kim , Kyungmin Park , Mark Rutland , MyungJoo Ham , Nishanth Menon , Rob Herring , Stephen Boyd , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v2 2/4] devfreq: exynos-bus: convert to use dev_pm_opp_set_rate() Date: Mon, 15 Jul 2019 14:04:14 +0200 Message-Id: <20190715120416.3561-3-k.konieczny@partner.samsung.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190715120416.3561-1-k.konieczny@partner.samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRjuO+ds5zhaHKfhS4bRoqDMsiz6SrNF/hj1o4sQVIhOPamlc+zo LCU0S1MpKyUyyxt2sWF5v2QptJZWmrYJZpglmlhq4tiMrprbWZd/z/tcvvd54WNI2aBoCROj TuC0alWsXCyhGtu/dfu8Or42xDfdIsU1BVUi/No2JsIlxm4Rzm2bQ/jiyASJe3qqafwyfZLG tSN9ItzbckOMrReMCBf0tBH4nnGQxrdemwg8cLpCjCe/viRwRquRxrN9NRSuG2oXK2TKyuJK pKzVZ4uVdTdTlY+nHhHK3Ho9Unb0NxFKa63XPvqwJCCSi43Rcdr1gWGSaLNlVKyZ2H2iMzsl DT31z0EuDLCbYOLagDgHSRgZW4HAkv+dFgYbgubsQiQMVgQ/9G3En0jpsyIHlrF3EEz3e/xN 2MoHRXZBzG6B4aYuh8mdXQH5766SdhPJfqOgureGtgtubDBMmQrmAwxDsSuh981ROy1ld0Gm odW5bBlkNz+k7NiFDYLm9+204HGF59c+OHhy3nOm4brjfWAtNJhN0yIhHAQtbz85sRuMd9TT Al4KnfnnKQEnwWhZLi2EzyIYOmdxCv7wpMPkKEeyq6GqZb1A74ThjO+EnQZ2EfR/dhU6LIK8 RvuNdloKWZkywe0DxXNdzgaekDN334mV0PDxAX0JLS/875rC/64p/Le3FJF65MEl8nFRHL9R zSWt41VxfKI6al1EfFwtmv90nbMdtmbU8jPcgFgGyRdKFZHeITKRSsefjDMgYEi5u3T7zDwl jVSdTOa08aHaxFiONyBPhpJ7SFMWDB2RsVGqBO44x2k47R+VYFyWpKFVLq0rqsp/hUycywp/ 4Vuh+HJ3PE9RNjNmSD2kaw3ISN1SVPIhaECTknDFjbOlFQcf9C27nd50arE1NPnY/ZGtdXkb Nl/WFGWxDZ+G93pbA6ctFHSFxRw40mY2q/N2RERIdV76rzlh1e4pOj+J1779YXumz/tl4NFt mqlnP9Nmo+UUH63asIbU8qrf92svTnADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDIsWRmVeSWpSXmKPExsVy+t/xu7rns3ViDdY2SFlsnLGe1eL6l+es FvOPnGO16Nv3n9Gi//FrZovz5zewW5xtesNusenxNVaLy7vmsFl87j3CaDHj/D4mi7VH7rJb LL1+kcniduMKNos3P84yWbTuPcJu8e/aRhaLzQ+OsTkIeayZt4bRY9OqTjaPzUvqPQ6+28Pk 0bdlFaPH8RvbmTw+b5ILYI/SsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQzNDaPtTIyVdK3 s0lJzcksSy3St0vQy7j08SlbwWuvitOd1Q2MR627GDk5JARMJBacmMvUxcjFISSwlFFi8u0z bBAJaYnG06uZIGxhiT/Xutggij4xStx7soQRJMEmYC7xaPsZsCIRAWWJyfemM4MUMQt0skqs eHIEbJKwQKDE297DrF2MHBwsAqoSl2+mgYR5BZwl2g7thVogL9G5YzcLiM0p4CKx4/4xdhBb CKim5VU/C0S9oMTJmU/AbGag+uats5knMArMQpKahSS1gJFpFaNIamlxbnpusaFecWJucWle ul5yfu4mRmBMbjv2c/MOxksbgw8xCnAwKvHwOqRoxwqxJpYVV+YeYpTgYFYS4bX9ChTiTUms rEotyo8vKs1JLT7EaAr0w0RmKdHkfGC6yCuJNzQ1NLewNDQ3Njc2s1AS5+0QOBgjJJCeWJKa nZpakFoE08fEwSnVwDil3UFvUkTZ/95XVzf58vMLfFq3aadkouznCzz1wfKb9t3hvbP+iusb q8CXyy+fDRZ2+h35XZ1PfO6OCAOVYunYooRneTYGq//ZPJfM0+jR2mTkpHCmynux/+T3z1OW iCxOXHH6yK6t8iUn13paiUyNt/bUcrDYpxo2R+3/g/ntXbcipk+y3qnEUpyRaKjFXFScCABz OpIm3wIAAA== X-CMS-MailID: 20190715120431eucas1p215eae81d0ca772d7e2a22a803669068a X-Msg-Generator: CA X-RootMTR: 20190715120431eucas1p215eae81d0ca772d7e2a22a803669068a X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190715120431eucas1p215eae81d0ca772d7e2a22a803669068a References: <20190715120416.3561-1-k.konieczny@partner.samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Reuse opp core code for setting bus clock and voltage. As a side effect this allow useage of coupled regulators feature (required for boards using Exynos5422/5800 SoCs) because dev_pm_opp_set_rate() uses regulator_set_voltage_triplet() for setting regulator voltage while the old code used regulator_set_voltage_tol() with fixed tolerance. This patch also removes no longer needed parsing of DT property "exynos,voltage-tolerance" (no Exynos devfreq DT node uses it). Signed-off-by: Kamil Konieczny --- drivers/devfreq/exynos-bus.c | 172 ++++++++++++++--------------------- 1 file changed, 66 insertions(+), 106 deletions(-) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 486cc5b422f1..7fc4f76bd848 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -25,7 +25,6 @@ #include #define DEFAULT_SATURATION_RATIO 40 -#define DEFAULT_VOLTAGE_TOLERANCE 2 struct exynos_bus { struct device *dev; @@ -37,9 +36,9 @@ struct exynos_bus { unsigned long curr_freq; - struct regulator *regulator; + struct opp_table *opp_table; + struct clk *clk; - unsigned int voltage_tolerance; unsigned int ratio; }; @@ -99,56 +98,25 @@ static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags) { struct exynos_bus *bus = dev_get_drvdata(dev); struct dev_pm_opp *new_opp; - unsigned long old_freq, new_freq, new_volt, tol; int ret = 0; - - /* Get new opp-bus instance according to new bus clock */ + /* + * New frequency for bus may not be exactly matched to opp, adjust + * *freq to correct value. + */ new_opp = devfreq_recommended_opp(dev, freq, flags); if (IS_ERR(new_opp)) { dev_err(dev, "failed to get recommended opp instance\n"); return PTR_ERR(new_opp); } - new_freq = dev_pm_opp_get_freq(new_opp); - new_volt = dev_pm_opp_get_voltage(new_opp); dev_pm_opp_put(new_opp); - old_freq = bus->curr_freq; - - if (old_freq == new_freq) - return 0; - tol = new_volt * bus->voltage_tolerance / 100; - /* Change voltage and frequency according to new OPP level */ mutex_lock(&bus->lock); + ret = dev_pm_opp_set_rate(dev, *freq); + if (!ret) + bus->curr_freq = *freq; - if (old_freq < new_freq) { - ret = regulator_set_voltage_tol(bus->regulator, new_volt, tol); - if (ret < 0) { - dev_err(bus->dev, "failed to set voltage\n"); - goto out; - } - } - - ret = clk_set_rate(bus->clk, new_freq); - if (ret < 0) { - dev_err(dev, "failed to change clock of bus\n"); - clk_set_rate(bus->clk, old_freq); - goto out; - } - - if (old_freq > new_freq) { - ret = regulator_set_voltage_tol(bus->regulator, new_volt, tol); - if (ret < 0) { - dev_err(bus->dev, "failed to set voltage\n"); - goto out; - } - } - bus->curr_freq = new_freq; - - dev_dbg(dev, "Set the frequency of bus (%luHz -> %luHz, %luHz)\n", - old_freq, new_freq, clk_get_rate(bus->clk)); -out: mutex_unlock(&bus->lock); return ret; @@ -194,10 +162,11 @@ static void exynos_bus_exit(struct device *dev) if (ret < 0) dev_warn(dev, "failed to disable the devfreq-event devices\n"); - if (bus->regulator) - regulator_disable(bus->regulator); + if (bus->opp_table) + dev_pm_opp_put_regulators(bus->opp_table); dev_pm_opp_of_remove_table(dev); + clk_disable_unprepare(bus->clk); } @@ -209,39 +178,26 @@ static int exynos_bus_passive_target(struct device *dev, unsigned long *freq, { struct exynos_bus *bus = dev_get_drvdata(dev); struct dev_pm_opp *new_opp; - unsigned long old_freq, new_freq; - int ret = 0; + int ret; - /* Get new opp-bus instance according to new bus clock */ + /* + * New frequency for bus may not be exactly matched to opp, adjust + * *freq to correct value. + */ new_opp = devfreq_recommended_opp(dev, freq, flags); if (IS_ERR(new_opp)) { dev_err(dev, "failed to get recommended opp instance\n"); return PTR_ERR(new_opp); } - new_freq = dev_pm_opp_get_freq(new_opp); dev_pm_opp_put(new_opp); - old_freq = bus->curr_freq; - - if (old_freq == new_freq) - return 0; - /* Change the frequency according to new OPP level */ mutex_lock(&bus->lock); + ret = dev_pm_opp_set_rate(dev, *freq); + if (!ret) + bus->curr_freq = *freq; - ret = clk_set_rate(bus->clk, new_freq); - if (ret < 0) { - dev_err(dev, "failed to set the clock of bus\n"); - goto out; - } - - *freq = new_freq; - bus->curr_freq = new_freq; - - dev_dbg(dev, "Set the frequency of bus (%luHz -> %luHz, %luHz)\n", - old_freq, new_freq, clk_get_rate(bus->clk)); -out: mutex_unlock(&bus->lock); return ret; @@ -259,20 +215,7 @@ static int exynos_bus_parent_parse_of(struct device_node *np, struct exynos_bus *bus) { struct device *dev = bus->dev; - int i, ret, count, size; - - /* Get the regulator to provide each bus with the power */ - bus->regulator = devm_regulator_get(dev, "vdd"); - if (IS_ERR(bus->regulator)) { - dev_err(dev, "failed to get VDD regulator\n"); - return PTR_ERR(bus->regulator); - } - - ret = regulator_enable(bus->regulator); - if (ret < 0) { - dev_err(dev, "failed to enable VDD regulator\n"); - return ret; - } + int i, count, size; /* * Get the devfreq-event devices to get the current utilization of @@ -281,24 +224,20 @@ static int exynos_bus_parent_parse_of(struct device_node *np, count = devfreq_event_get_edev_count(dev); if (count < 0) { dev_err(dev, "failed to get the count of devfreq-event dev\n"); - ret = count; - goto err_regulator; + return count; } + bus->edev_count = count; size = sizeof(*bus->edev) * count; bus->edev = devm_kzalloc(dev, size, GFP_KERNEL); - if (!bus->edev) { - ret = -ENOMEM; - goto err_regulator; - } + if (!bus->edev) + return -ENOMEM; for (i = 0; i < count; i++) { bus->edev[i] = devfreq_event_get_edev_by_phandle(dev, i); - if (IS_ERR(bus->edev[i])) { - ret = -EPROBE_DEFER; - goto err_regulator; - } + if (IS_ERR(bus->edev[i])) + return -EPROBE_DEFER; } /* @@ -314,22 +253,15 @@ static int exynos_bus_parent_parse_of(struct device_node *np, if (of_property_read_u32(np, "exynos,saturation-ratio", &bus->ratio)) bus->ratio = DEFAULT_SATURATION_RATIO; - if (of_property_read_u32(np, "exynos,voltage-tolerance", - &bus->voltage_tolerance)) - bus->voltage_tolerance = DEFAULT_VOLTAGE_TOLERANCE; - return 0; - -err_regulator: - regulator_disable(bus->regulator); - - return ret; } static int exynos_bus_parse_of(struct device_node *np, - struct exynos_bus *bus) + struct exynos_bus *bus, bool passive) { struct device *dev = bus->dev; + struct opp_table *opp_table; + const char *vdd = "vdd"; struct dev_pm_opp *opp; unsigned long rate; int ret; @@ -347,11 +279,22 @@ static int exynos_bus_parse_of(struct device_node *np, return ret; } + if (!passive) { + opp_table = dev_pm_opp_set_regulators(dev, &vdd, 1); + if (IS_ERR(opp_table)) { + ret = PTR_ERR(opp_table); + dev_err(dev, "failed to set regulators %d\n", ret); + goto err_clk; + } + + bus->opp_table = opp_table; + } + /* Get the freq and voltage from OPP table to scale the bus freq */ ret = dev_pm_opp_of_add_table(dev); if (ret < 0) { dev_err(dev, "failed to get OPP table\n"); - goto err_clk; + goto err_regulator; } rate = clk_get_rate(bus->clk); @@ -362,6 +305,7 @@ static int exynos_bus_parse_of(struct device_node *np, ret = PTR_ERR(opp); goto err_opp; } + bus->curr_freq = dev_pm_opp_get_freq(opp); dev_pm_opp_put(opp); @@ -369,6 +313,13 @@ static int exynos_bus_parse_of(struct device_node *np, err_opp: dev_pm_opp_of_remove_table(dev); + +err_regulator: + if (bus->opp_table) { + dev_pm_opp_put_regulators(bus->opp_table); + bus->opp_table = NULL; + } + err_clk: clk_disable_unprepare(bus->clk); @@ -386,6 +337,7 @@ static int exynos_bus_probe(struct platform_device *pdev) struct exynos_bus *bus; int ret, max_state; unsigned long min_freq, max_freq; + bool passive = false; if (!np) { dev_err(dev, "failed to find devicetree node\n"); @@ -395,12 +347,18 @@ static int exynos_bus_probe(struct platform_device *pdev) bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL); if (!bus) return -ENOMEM; + mutex_init(&bus->lock); bus->dev = &pdev->dev; platform_set_drvdata(pdev, bus); + node = of_parse_phandle(dev->of_node, "devfreq", 0); + if (node) { + of_node_put(node); + passive = true; + } /* Parse the device-tree to get the resource information */ - ret = exynos_bus_parse_of(np, bus); + ret = exynos_bus_parse_of(np, bus, passive); if (ret < 0) return ret; @@ -410,13 +368,10 @@ static int exynos_bus_probe(struct platform_device *pdev) goto err; } - node = of_parse_phandle(dev->of_node, "devfreq", 0); - if (node) { - of_node_put(node); + if (passive) goto passive; - } else { - ret = exynos_bus_parent_parse_of(np, bus); - } + + ret = exynos_bus_parent_parse_of(np, bus); if (ret < 0) goto err; @@ -509,6 +464,11 @@ static int exynos_bus_probe(struct platform_device *pdev) err: dev_pm_opp_of_remove_table(dev); + if (bus->opp_table) { + dev_pm_opp_put_regulators(bus->opp_table); + bus->opp_table = NULL; + } + clk_disable_unprepare(bus->clk); return ret; From patchwork Mon Jul 15 12:04:15 2019 Content-Type: text/plain; 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Mon, 15 Jul 2019 12:04:31 +0000 (GMT) From: Kamil Konieczny To: k.konieczny@partner.samsung.com Cc: Bartlomiej Zolnierkiewicz , Marek Szyprowski , Chanwoo Choi , Krzysztof Kozlowski , Kukjin Kim , Kyungmin Park , Mark Rutland , MyungJoo Ham , Nishanth Menon , Rob Herring , Stephen Boyd , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v2 3/4] ARM: dts: exynos: add initial data for coupled regulators for Exynos5422/5800 Date: Mon, 15 Jul 2019 14:04:15 +0200 Message-Id: <20190715120416.3561-4-k.konieczny@partner.samsung.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190715120416.3561-1-k.konieczny@partner.samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrHKsWRmVeSWpSXmKPExsWy7djP87oXs3ViDS6vZ7PYOGM9q8X1L89Z LeYfOcdq0bfvP6NF/+PXzBbnz29gtzjb9IbdYtPja6wWl3fNYbP43HuE0WLG+X1MFmuP3GW3 WHr9IpPF7cYVbBZvfpxlsmjde4Td4t+1jSwWmx8cY3MQ8lgzbw2jx6ZVnWwem5fUexx8t4fJ o2/LKkaP4ze2M3l83iQXwB7FZZOSmpNZllqkb5fAlfHx2ge2gk3WFR/PvWZpYLyi28XIySEh YCKxcu9uxi5GLg4hgRWMEsf3/2ODcL4wStybfJoJwvnMKLFl50X2LkYOsJZv+5Mh4ssZJU5O bWOC61g94QU7yFw2AXOJR9vPMIHYIgLKEpPvTWcGKWIW+MkiseHyRrAiYYF0ifP7PrCA2CwC qhI7Lx4Ai/MKOEu8mrKECeJAeYnOHbvBajgFXCR23D8GVSMocXLmE7A4M1BN89bZzBD1H9kl vuzOgbBdJO5c2MkOYQtLvDq+BcqWkTg9uYcFwi6XeLqwjx3kOAmBFkaJB+0foRLWEoePX2QF eZlZQFNi/S59iLCjxIrF05kgIcEnceOtIMQJfBKTtoH8CBLmlehoE4Ko1pWY9/8MK4QtLdH1 fx2U7SFx+OpKpgmMirOQPDMLyTOzEPYuYGRexSieWlqcm55abJSXWq5XnJhbXJqXrpecn7uJ EZjqTv87/mUH464/SYcYBTgYlXh4HVK0Y4VYE8uKK3MPMUpwMCuJ8Np+BQrxpiRWVqUW5ccX leakFh9ilOZgURLnrWZ4EC0kkJ5YkpqdmlqQWgSTZeLglGpgZNxhw2XvJmNuOYVtm1pa97MG 8Uui9mYPJ3zXCp2QIPN1zyGDz6f27Xh33ZzHfO+ts2eXTyricPL/OSHl8ZPO3w4psY2ix2fy Xf3owy6X6d40e+IiswRf6UXb5fckVVRnbWFWFFCeUtvKNDHnb/uR20uMrZdv9rfnWfm1iVNQ auaBBXGZflLKSizFGYmGWsxFxYkA38QOlHEDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrLIsWRmVeSWpSXmKPExsVy+t/xu7oXsnViDfa+4bPYOGM9q8X1L89Z LeYfOcdq0bfvP6NF/+PXzBbnz29gtzjb9IbdYtPja6wWl3fNYbP43HuE0WLG+X1MFmuP3GW3 WHr9IpPF7cYVbBZvfpxlsmjde4Td4t+1jSwWmx8cY3MQ8lgzbw2jx6ZVnWwem5fUexx8t4fJ o2/LKkaP4ze2M3l83iQXwB6lZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwea2VkqqRv Z5OSmpNZllqkb5egl/Hx2ge2gk3WFR/PvWZpYLyi28XIwSEhYCLxbX9yFyMXh5DAUkaJ+Yev s3UxcgLFpSUaT69mgrCFJf5c62KDKPrEKNHQtp0ZJMEmYC7xaPsZsCIRAWWJyfemM4MUMQt0 skqseHIEbJKwQKrEtG1djCA2i4CqxM6LB9hBbF4BZ4lXU5ZAbZCX6NyxmwXE5hRwkdhx/xhY jRBQTcurfhaIekGJkzOfgNnMQPXNW2czT2AUmIUkNQtJagEj0ypGkdTS4tz03GIjveLE3OLS vHS95PzcTYzAqNx27OeWHYxd74IPMQpwMCrx8DqkaMcKsSaWFVfmHmKU4GBWEuG1/QoU4k1J rKxKLcqPLyrNSS0+xGgK9MREZinR5HxgwsgriTc0NTS3sDQ0NzY3NrNQEuftEDgYIySQnliS mp2aWpBaBNPHxMEp1cAYvKBLYPGxKC3lD8JJG2axTBO89CilObF6SeBJddOYr161c9ZJyIp5 rPFdLOgUsOH6i6pHuyaflZstkSiVt2Bh3bHvQY96foVPWXJgRrv/Nf88zeKDGz8yCIr6LE1f 81tLxXF/x2uJ/KQPyYue7wyuEz869c43R9FGZfY/bsaNatOO3iiIPK+pxFKckWioxVxUnAgA LP4dZeACAAA= X-CMS-MailID: 20190715120432eucas1p1b32d72d239420b861bf8596d4e8a053d X-Msg-Generator: CA X-RootMTR: 20190715120432eucas1p1b32d72d239420b861bf8596d4e8a053d X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190715120432eucas1p1b32d72d239420b861bf8596d4e8a053d References: <20190715120416.3561-1-k.konieczny@partner.samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and bus wcore and couple their voltage supllies as vdd_arm and vdd_int should be in 300mV range. Signed-off-by: Marek Szyprowski Signed-off-by: Kamil Konieczny Reviewed-by: Chanwoo Choi Signed-off-by: Marek Szyprowski Signed-off-by: Kamil Konieczny --- arch/arm/boot/dts/exynos5420.dtsi | 34 +++++++++---------- arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 4 +++ arch/arm/boot/dts/exynos5800-peach-pi.dts | 4 +++ arch/arm/boot/dts/exynos5800.dtsi | 32 ++++++++--------- 4 files changed, 41 insertions(+), 33 deletions(-) diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index 5fb2326875dc..0cbf74750553 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -48,62 +48,62 @@ opp-shared; opp-1800000000 { opp-hz = /bits/ 64 <1800000000>; - opp-microvolt = <1250000>; + opp-microvolt = <1250000 1250000 1500000>; clock-latency-ns = <140000>; }; opp-1700000000 { opp-hz = /bits/ 64 <1700000000>; - opp-microvolt = <1212500>; + opp-microvolt = <1212500 1212500 1500000>; clock-latency-ns = <140000>; }; opp-1600000000 { opp-hz = /bits/ 64 <1600000000>; - opp-microvolt = <1175000>; + opp-microvolt = <1175000 1175000 1500000>; clock-latency-ns = <140000>; }; opp-1500000000 { opp-hz = /bits/ 64 <1500000000>; - opp-microvolt = <1137500>; + opp-microvolt = <1137500 1137500 1500000>; clock-latency-ns = <140000>; }; opp-1400000000 { opp-hz = /bits/ 64 <1400000000>; - opp-microvolt = <1112500>; + opp-microvolt = <1112500 1112500 1500000>; clock-latency-ns = <140000>; }; opp-1300000000 { opp-hz = /bits/ 64 <1300000000>; - opp-microvolt = <1062500>; + opp-microvolt = <1062500 1062500 1500000>; clock-latency-ns = <140000>; }; opp-1200000000 { opp-hz = /bits/ 64 <1200000000>; - opp-microvolt = <1037500>; + opp-microvolt = <1037500 1037500 1500000>; clock-latency-ns = <140000>; }; opp-1100000000 { opp-hz = /bits/ 64 <1100000000>; - opp-microvolt = <1012500>; + opp-microvolt = <1012500 1012500 1500000>; clock-latency-ns = <140000>; }; opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; - opp-microvolt = < 987500>; + opp-microvolt = < 987500 987500 1500000>; clock-latency-ns = <140000>; }; opp-900000000 { opp-hz = /bits/ 64 <900000000>; - opp-microvolt = < 962500>; + opp-microvolt = < 962500 962500 1500000>; clock-latency-ns = <140000>; }; opp-800000000 { opp-hz = /bits/ 64 <800000000>; - opp-microvolt = < 937500>; + opp-microvolt = < 937500 937500 1500000>; clock-latency-ns = <140000>; }; opp-700000000 { opp-hz = /bits/ 64 <700000000>; - opp-microvolt = < 912500>; + opp-microvolt = < 912500 912500 1500000>; clock-latency-ns = <140000>; }; }; @@ -1100,23 +1100,23 @@ opp00 { opp-hz = /bits/ 64 <84000000>; - opp-microvolt = <925000>; + opp-microvolt = <925000 925000 1400000>; }; opp01 { opp-hz = /bits/ 64 <111000000>; - opp-microvolt = <950000>; + opp-microvolt = <950000 950000 1400000>; }; opp02 { opp-hz = /bits/ 64 <222000000>; - opp-microvolt = <950000>; + opp-microvolt = <950000 950000 1400000>; }; opp03 { opp-hz = /bits/ 64 <333000000>; - opp-microvolt = <950000>; + opp-microvolt = <950000 950000 1400000>; }; opp04 { opp-hz = /bits/ 64 <400000000>; - opp-microvolt = <987500>; + opp-microvolt = <987500 987500 1400000>; }; }; diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi index 25d95de15c9b..65d094256b54 100644 --- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi @@ -428,6 +428,8 @@ regulator-max-microvolt = <1500000>; regulator-always-on; regulator-boot-on; + regulator-coupled-with = <&buck3_reg>; + regulator-coupled-max-spread = <300000>; }; buck3_reg: BUCK3 { @@ -436,6 +438,8 @@ regulator-max-microvolt = <1400000>; regulator-always-on; regulator-boot-on; + regulator-coupled-with = <&buck2_reg>; + regulator-coupled-max-spread = <300000>; }; buck4_reg: BUCK4 { diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts index e0f470fe54c8..5c1e965ed7e9 100644 --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts @@ -257,6 +257,8 @@ regulator-always-on; regulator-boot-on; regulator-ramp-delay = <12500>; + regulator-coupled-with = <&buck3_reg>; + regulator-coupled-max-spread = <300000>; regulator-state-mem { regulator-off-in-suspend; }; @@ -269,6 +271,8 @@ regulator-always-on; regulator-boot-on; regulator-ramp-delay = <12500>; + regulator-coupled-with = <&buck2_reg>; + regulator-coupled-max-spread = <300000>; regulator-state-mem { regulator-off-in-suspend; }; diff --git a/arch/arm/boot/dts/exynos5800.dtsi b/arch/arm/boot/dts/exynos5800.dtsi index 57d3b319fd65..2a74735d161c 100644 --- a/arch/arm/boot/dts/exynos5800.dtsi +++ b/arch/arm/boot/dts/exynos5800.dtsi @@ -22,61 +22,61 @@ &cluster_a15_opp_table { opp-1700000000 { - opp-microvolt = <1250000>; + opp-microvolt = <1250000 1250000 1500000>; }; opp-1600000000 { - opp-microvolt = <1250000>; + opp-microvolt = <1250000 1250000 1500000>; }; opp-1500000000 { - opp-microvolt = <1100000>; + opp-microvolt = <1100000 1100000 1500000>; }; opp-1400000000 { - opp-microvolt = <1100000>; + opp-microvolt = <1100000 1100000 1500000>; }; opp-1300000000 { - opp-microvolt = <1100000>; + opp-microvolt = <1100000 1100000 1500000>; }; opp-1200000000 { - opp-microvolt = <1000000>; + opp-microvolt = <1000000 1000000 1500000>; }; opp-1100000000 { - opp-microvolt = <1000000>; + opp-microvolt = <1000000 1000000 1500000>; }; opp-1000000000 { - opp-microvolt = <1000000>; + opp-microvolt = <1000000 1000000 1500000>; }; opp-900000000 { - opp-microvolt = <1000000>; + opp-microvolt = <1000000 1000000 1500000>; }; opp-800000000 { - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; }; opp-700000000 { - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; }; opp-600000000 { opp-hz = /bits/ 64 <600000000>; - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; clock-latency-ns = <140000>; }; opp-500000000 { opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; clock-latency-ns = <140000>; }; opp-400000000 { opp-hz = /bits/ 64 <400000000>; - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; clock-latency-ns = <140000>; }; opp-300000000 { opp-hz = /bits/ 64 <300000000>; - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; clock-latency-ns = <140000>; }; opp-200000000 { opp-hz = /bits/ 64 <200000000>; - opp-microvolt = <900000>; + opp-microvolt = <900000 900000 1500000>; clock-latency-ns = <140000>; }; }; From patchwork Mon Jul 15 12:04:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamil Konieczny X-Patchwork-Id: 11043643 X-Patchwork-Delegate: cw00.choi@samsung.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D3F481800 for ; Mon, 15 Jul 2019 12:04:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C2E9528458 for ; 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Mon, 15 Jul 2019 12:04:33 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20190715120433eusmtrp175e23c4f93d7b1731465914b6bf58341~xkxcZNt5N1141311413eusmtrp1Z; Mon, 15 Jul 2019 12:04:33 +0000 (GMT) X-AuditID: cbfec7f5-b8fff700000010e5-b1-5d2c6bd13a44 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id DD.12.04140.1DB6C2D5; Mon, 15 Jul 2019 13:04:33 +0100 (BST) Received: from AMDC3218.DIGITAL.local (unknown [106.120.51.18]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190715120432eusmtip105676d3b9da5c82d3ba5d1d79e6dc7ce~xkxbow_MF1803018030eusmtip1O; Mon, 15 Jul 2019 12:04:32 +0000 (GMT) From: Kamil Konieczny To: k.konieczny@partner.samsung.com Cc: Bartlomiej Zolnierkiewicz , Marek Szyprowski , Chanwoo Choi , Krzysztof Kozlowski , Kukjin Kim , Kyungmin Park , Mark Rutland , MyungJoo Ham , Nishanth Menon , Rob Herring , Stephen Boyd , Viresh Kumar , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v2 4/4] dt-bindings: devfreq: exynos-bus: remove unused property Date: Mon, 15 Jul 2019 14:04:16 +0200 Message-Id: <20190715120416.3561-5-k.konieczny@partner.samsung.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190715120416.3561-1-k.konieczny@partner.samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA01SWUwTURT1dWY6A1ozVBKu1iVWTQQVF1Re4hKNJs6HH0R/UEJ0lBEMi6al VDARFEUlggKJ1KIoIovsW4FUhVgaGhCtiAGMoiAQg1DFVKJEY207Rfk797xz7nnn5TGE/AO1 iDkZFy+o4vgYpdSbbGyftq7rjl4bvmHy8iZcq6umcN/3TxS+a35B4cwWB8LXh8cJbLXW0Pj5 hQka1w33UrjHeFuK7RlmhHXWFgmuNA/QuKivW4Lfni+V4omfzyX40hMzjf/01pK4frBdukvO VeRXIK6u7KqUq3+QzD398ljCZTaUIc7S3yTh7HVLQ+jD3tsjhJiTCYJq/c6j3lEZA53U6Urm zI2sQiIF6eh05MUAuxk6G+woHXkzcrYUgW48jRKH7wgah+ol4mBHMGbUUzOW1tyHHksJgvGO MfqfJaetx62SssHwsalL4sK+7ArIeZ9LuEQEO01CTU+tO30BewBe1vRIXZhkV0FXicVtlrF7 IMP4Aolxy+Bq8yPShb3YvdD8oZ0WNT7QcWvEzRNOTaohzx0ArI2G8l/FzkWMc9gLU3os7lkA ny0NntaL4VnONVLEWhgtyKRF70UEg5e/eQ62QZul272HYP2h2rhepHfDWFmeZ/186Lf5iFeY D9mNro4uWgZX0uSieh3kO7o8D6eAdEeVB3NQkJpN3EDL9bPK6GeV0f/PvYeIMuQnaNSxkYI6 KE7QBqr5WLUmLjLw+KnYOuT8ds/+WKaaUcvvYybEMkg5T7YrYk24nOIT1ImxJgQMofSV7Zhy UrIIPjFJUJ06otLECGoTUjCk0k92ds5gmJyN5OOFaEE4LahmTiWM16IUpDU4hgw1+5Omgzhd WlVrCVkYErovkN+iKh0KePVm689O7fmir6O8sNL/txaWFOAgzYllwsHHm9fU90+GEfLJH3pj wrvX+aFQGW4rvlCuCGnl2+4voX+tTiUEQ7Ipub1puyGs487IIdtcxa0Bf3Lhcp82GdwMjwoO CE7JOvdESaqj+I0BhErN/wXPEl1ucgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrHIsWRmVeSWpSXmKPExsVy+t/xu7oXs3ViDT7eZ7bYOGM9q8X1L89Z LeYfOcdq0bfvP6NF/+PXzBbnz29gtzjb9IbdYtPja6wWl3fNYbP43HuE0WLG+X1MFmuP3GW3 WHr9IpPF7cYVbBZvfpxlsmjde4Td4t+1jSwWmx8cY3MQ8lgzbw2jx6ZVnWwem5fUexx8t4fJ o2/LKkaP4ze2M3l83iQXwB6lZ1OUX1qSqpCRX1xiqxRtaGGkZ2hpoWdkYqlnaGwea2VkqqRv Z5OSmpNZllqkb5egl9F79xRrwVqOigkTFzM3MM5g72Lk5JAQMJHYP30lYxcjF4eQwFJGiVN/ JjBBJKQlGk+vhrKFJf5c62KDKPrEKPFk8UJWkASbgLnEo+1nwIpEBJQlJt+bzgxSxCzQySqx 4skRNpCEsECAxOWjE1lAbBYBVYkzy4+DNfMKOEv07jrHCLFBXqJzx26wGk4BF4kd94+BnScE VNPyqp8Fol5Q4uTMJ2A2M1B989bZzBMYBWYhSc1CklrAyLSKUSS1tDg3PbfYSK84Mbe4NC9d Lzk/dxMjMC63Hfu5ZQdj17vgQ4wCHIxKPLwOKdqxQqyJZcWVuYcYJTiYlUR4bb8ChXhTEiur Uovy44tKc1KLDzGaAj0xkVlKNDkfmDLySuINTQ3NLSwNzY3Njc0slMR5OwQOxggJpCeWpGan phakFsH0MXFwSjUwLluwO8WdmWH/Nq54eb6HBxQfvrPpvxHItVk2e9miVRtmz899F3Th7OpL uX0LvOZmLm5JvGLM0ukc0GRlfW3Ki+MVC3vlrh8+kvRXz+xzhoqgEsvhef3c5om7UuuDHf9v WnOzdEl0lnfknd+cgSeWBjfIh33fxsruvmTVN2m9O7sZJeYYaLe1KrEUZyQaajEXFScCAIxj LBPhAgAA X-CMS-MailID: 20190715120433eucas1p26681c5c2d87423253b651d88446c538c X-Msg-Generator: CA X-RootMTR: 20190715120433eucas1p26681c5c2d87423253b651d88446c538c X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190715120433eucas1p26681c5c2d87423253b651d88446c538c References: <20190715120416.3561-1-k.konieczny@partner.samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Remove unused DT property "exynos,voltage-tolerance". Signed-off-by: Kamil Konieczny Acked-by: Chanwoo Choi --- Documentation/devicetree/bindings/devfreq/exynos-bus.txt | 2 -- 1 file changed, 2 deletions(-) diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt index f8e946471a58..e71f752cc18f 100644 --- a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt +++ b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt @@ -50,8 +50,6 @@ Required properties only for passive bus device: Optional properties only for parent bus device: - exynos,saturation-ratio: the percentage value which is used to calibrate the performance count against total cycle count. -- exynos,voltage-tolerance: the percentage value for bus voltage tolerance - which is used to calculate the max voltage. Detailed correlation between sub-blocks and power line according to Exynos SoC: - In case of Exynos3250, there are two power line as following: