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[109.252.192.57]) by smtp.gmail.com with ESMTPSA id u5sm655596lff.78.2020.12.17.10.07.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Dec 2020 10:07:35 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Liam Girdwood , Ulf Hansson , Mauro Carvalho Chehab , Rob Herring , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Michael Turquette Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v2 14/48] opp: Filter out OPPs based on availability of a required-OPP Date: Thu, 17 Dec 2020 21:06:04 +0300 Message-Id: <20201217180638.22748-15-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201217180638.22748-1-digetx@gmail.com> References: <20201217180638.22748-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A required OPP may not be available, and thus, all OPPs which are using this required OPP should be unavailable too. Signed-off-by: Dmitry Osipenko --- drivers/opp/core.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index d9feb7639598..3d02fe33630b 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -1588,7 +1588,7 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, struct opp_table *opp_table, bool rate_not_available) { struct list_head *head; - int ret; + int i, ret; mutex_lock(&opp_table->lock); head = &opp_table->opp_list; @@ -1615,6 +1615,15 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, __func__, new_opp->rate); } + for (i = 0; i < opp_table->required_opp_count && new_opp->available; i++) { + if (new_opp->required_opps[i]->available) + continue; + + new_opp->available = false; + dev_warn(dev, "%s: OPP not supported by required OPP %pOF (%lu)\n", + __func__, new_opp->required_opps[i]->np, new_opp->rate); + } + return 0; } -- 2.29.2