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[84.20.244.219]) by smtp.gmail.com with ESMTPSA id a202sm6990798wmd.15.2021.09.20.00.17.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 00:17:57 -0700 (PDT) From: Krzysztof Kozlowski To: Rob Herring , Krzysztof Kozlowski , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: Marek Szyprowski , Sylwester Nawrocki , Bartlomiej Zolnierkiewicz Subject: [PATCH v2 1/3] devfreq: exynos-ppmu: use node names with hyphens Date: Mon, 20 Sep 2021 09:17:51 +0200 Message-Id: <20210920071753.38560-1-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> References: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_001803_594366_EE5239A3 X-CRM114-Status: GOOD ( 14.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Devicetree naming convention requires device node names to use hyphens instead of underscore, so Exynos5422 devfreq event name "ppmu-event3-dmc0_0" should be "ppmu-event3-dmc0-0". Newly introduced dtschema enforces this, however the driver still expects old name with an underscore. Add new events for Exynos5422 while still accepting old name for backwards compatibility. Signed-off-by: Krzysztof Kozlowski --- drivers/devfreq/event/exynos-ppmu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c index 17ed980d9099..541bd13ab61d 100644 --- a/drivers/devfreq/event/exynos-ppmu.c +++ b/drivers/devfreq/event/exynos-ppmu.c @@ -94,11 +94,16 @@ static struct __exynos_ppmu_events { PPMU_EVENT(d1-general), PPMU_EVENT(d1-rt), - /* For Exynos5422 SoC */ + /* For Exynos5422 SoC, deprecated (backwards compatible) */ PPMU_EVENT(dmc0_0), PPMU_EVENT(dmc0_1), PPMU_EVENT(dmc1_0), PPMU_EVENT(dmc1_1), + /* For Exynos5422 SoC */ + PPMU_EVENT(dmc0-0), + PPMU_EVENT(dmc0-1), + PPMU_EVENT(dmc1-0), + PPMU_EVENT(dmc1-1), }; static int __exynos_ppmu_find_ppmu_id(const char *edev_name) From patchwork Mon Sep 20 07:17:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 12504699 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6711CC433EF for ; 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[84.20.244.219]) by smtp.gmail.com with ESMTPSA id a202sm6990798wmd.15.2021.09.20.00.18.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 00:18:05 -0700 (PDT) From: Krzysztof Kozlowski To: Rob Herring , Krzysztof Kozlowski , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: Marek Szyprowski , Sylwester Nawrocki , Bartlomiej Zolnierkiewicz Subject: [PATCH v2 2/3] devfreq: exynos-ppmu: simplify parsing event-type from DT Date: Mon, 20 Sep 2021 09:17:52 +0200 Message-Id: <20210920071753.38560-2-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> References: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_001808_383626_6FE1AF52 X-CRM114-Status: GOOD ( 18.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When parsing devicetree, the function of_get_devfreq_events(), for each device child node, iterates over array of possible events "ppmu_events" till it finds one matching by node name. When match is found the ppmu_events[i] points to element having both the name of the event and the counters ID. Each PPMU device child node might have an "event-name" property with the name of the event, however due to the design of devfreq it must be the same as the device node name. If it is not the same, the devfreq client won't be able to use it via devfreq_event_get_edev_by_phandle(). Since PPMU device child node name must be equal to the "event-name" property (event-name == ppmu_events[i].name), there is no need to find the counters ID by the "event-name". Instead use ppmu_events[i].id which must be equal to it. Signed-off-by: Krzysztof Kozlowski --- drivers/devfreq/event/exynos-ppmu.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c index 541bd13ab61d..9b849d781116 100644 --- a/drivers/devfreq/event/exynos-ppmu.c +++ b/drivers/devfreq/event/exynos-ppmu.c @@ -566,13 +566,10 @@ static int of_get_devfreq_events(struct device_node *np, * use default if not. */ if (info->ppmu_type == EXYNOS_TYPE_PPMU_V2) { - int id; /* Not all registers take the same value for * read+write data count. */ - id = __exynos_ppmu_find_ppmu_id(desc[j].name); - - switch (id) { + switch (ppmu_events[i].id) { case PPMU_PMNCNT0: case PPMU_PMNCNT1: case PPMU_PMNCNT2: From patchwork Mon Sep 20 07:17:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 12504701 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3EF7C433EF for ; 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[84.20.244.219]) by smtp.gmail.com with ESMTPSA id a202sm6990798wmd.15.2021.09.20.00.18.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Sep 2021 00:18:07 -0700 (PDT) From: Krzysztof Kozlowski To: Rob Herring , Krzysztof Kozlowski , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: Marek Szyprowski , Sylwester Nawrocki , Bartlomiej Zolnierkiewicz Subject: [PATCH v2 3/3] ARM: dts: exynos: align PPMU event node names with dtschema Date: Mon, 20 Sep 2021 09:17:53 +0200 Message-Id: <20210920071753.38560-3-krzysztof.kozlowski@canonical.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> References: <20210920071540.38337-1-krzysztof.kozlowski@canonical.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210920_001809_874922_EBE32525 X-CRM114-Status: GOOD ( 13.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use hyphen instead of underscore and align the PPMU event node name with dtschema. The event-name property must match the node name, by the design of devfreq events and PPMU driver. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi --- arch/arm/boot/dts/exynos5420.dtsi | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index e23e8ffb093f..b2f30bea96ce 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -302,8 +302,8 @@ ppmu_dmc0_0: ppmu@10d00000 { clocks = <&clock CLK_PCLK_PPMU_DREX0_0>; clock-names = "ppmu"; events { - ppmu_event3_dmc0_0: ppmu-event3-dmc0_0 { - event-name = "ppmu-event3-dmc0_0"; + ppmu_event3_dmc0_0: ppmu-event3-dmc0-0 { + event-name = "ppmu-event3-dmc0-0"; }; }; }; @@ -314,8 +314,8 @@ ppmu_dmc0_1: ppmu@10d10000 { clocks = <&clock CLK_PCLK_PPMU_DREX0_1>; clock-names = "ppmu"; events { - ppmu_event3_dmc0_1: ppmu-event3-dmc0_1 { - event-name = "ppmu-event3-dmc0_1"; + ppmu_event3_dmc0_1: ppmu-event3-dmc0-1 { + event-name = "ppmu-event3-dmc0-1"; }; }; }; @@ -326,8 +326,8 @@ ppmu_dmc1_0: ppmu@10d60000 { clocks = <&clock CLK_PCLK_PPMU_DREX1_0>; clock-names = "ppmu"; events { - ppmu_event3_dmc1_0: ppmu-event3-dmc1_0 { - event-name = "ppmu-event3-dmc1_0"; + ppmu_event3_dmc1_0: ppmu-event3-dmc1-0 { + event-name = "ppmu-event3-dmc1-0"; }; }; }; @@ -338,8 +338,8 @@ ppmu_dmc1_1: ppmu@10d70000 { clocks = <&clock CLK_PCLK_PPMU_DREX1_1>; clock-names = "ppmu"; events { - ppmu_event3_dmc1_1: ppmu-event3-dmc1_1 { - event-name = "ppmu-event3-dmc1_1"; + ppmu_event3_dmc1_1: ppmu-event3-dmc1-1 { + event-name = "ppmu-event3-dmc1-1"; }; }; };