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Wed, 17 Apr 2019 07:48:34 +0000 (GMT) From: Lukasz Luba To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/3] Documentation: devicetree: add PPMU events description Date: Wed, 17 Apr 2019 09:48:08 +0200 Message-Id: <1555487288-4777-4-git-send-email-l.luba@partner.samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1555487288-4777-1-git-send-email-l.luba@partner.samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA0VSfSyUcRzvd8899zzo9DiW3xDbNVtqkantt2WNlu3oj6wXM2k6eUJxdI+X 0LjIa4kQt8odvaDD1HVJJhUnS3mLiNiMhuWl5VwxG3l6rvXfZ5/X7bsviYmqcDsyUhZHy2XS KLHAnN/4brV378nRxuB9Gb9t0VNlA46Gl2dwpNb34Khgag5Dvb1PCNSdPk+gUYUD0k4N4Wig +Z4AGfL1ACl7W3moXj9OoEfD/Tz09WqNAGW+0hOofT4b96Ikdao6INFqcgWSZw/TJG8XW3iS mzoNkBi0jv6CIHPPMDoqMoGWux06ax6x0jIHYkssLpdV3icUQGuWB8xISO2HRl0XkQfMSRFV A+BqRzGPFUTUMoBV84gTDAB+zF4S/EuotCrACdUAzpaOm+Kbibtaw6ZCkgLKFTZpLrEBG+oB gL/ag1gPRuXy4GJxy98ma+ooLFKm4yzmU84w+/Zngs0KKV+o3gjgxhzhSE8uxmIzyg+qJrp4 HN9MwKHWJNYOqSNQO8nnaGv4vVNHcNgBbrxUm+wMVORXAg5fgVMF5SbPQdje2Y+zNRjlAhua 3TjaG/4YyeZz7Zbwy4IVS2ObsKixDONoIczJEnHuXVB3o880tB1W15WayiVwbb2D4K5ZDuDA zJ5C4HTn/1YFABpgS8cz0eE04y6jE10ZaTQTLwt3PRcTrQWb3/NhvXOpCRg/hbYBigTircKa 1efBIlyawCRFtwFIYmIboXeYLlgkDJMmJdPymBB5fBTNtAF7ki+2FaZsmTgtosKlcfRFmo6l 5f9UHmlmpwD1F/w9N9IMosBJyxRwxmfM9/W0rfuad0i7fYHHt5HA632zUUt+CZkBdokHSpVv XFJPCXbWHg81Wr1Pdd6IH5Rl5FbJPLw6NcrDkwtG4/QOfWDOeQtHG9WxbbWxj8daa64Nuvmd KPy5OOOtLHlhUXErWeHk070idsRjsnyK1MgmVMxnIqTuuzE5I/0D8LWbGTkDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFuplkeLIzCtJLcpLzFFi42I5/e/4Xd3gW9tiDLYu5LLYOGM9q8X1L89Z LeYfOcdq0f/4NbPF+fMb2C3ONr1ht7jVIGOx6fE1VovLu+awWXzuPcJoMeP8PiaLtUfuslss vX6RyeJ24wo2i9a9R9gtDr9pZ3UQ8Fgzbw2jx6ZVnWwem5fUexx8t4fJo2/LKkaPz5vkAtii 9GyK8ktLUhUy8otLbJWiDS2M9AwtLfSMTCz1DI3NY62MTJX07WxSUnMyy1KL9O0S9DJ+7HnN WDCFu2L6wkXsDYybOLsYOTkkBEwk5m2ax9jFyMUhJLCUUeLC2h3MEAkxiUn7trND2MISf651 sUEUfWKUOHLoMVARBwebgJ7EjlWFIHERgeWMEsdWvWUGcZgFpjNJ3Hl3hQWkW1jAW2LSjCZW EJtFQFWifepVdpBmXgFPifn/wyAWyEncPNcJtphTwEti3oNTTCC2EFDJ1gMLWCYw8i1gZFjF KJJaWpybnltsqFecmFtcmpeul5yfu4kRGBXbjv3cvIPx0sbgQ4wCHIxKPLwrfm6NEWJNLCuu zD3EKMHBrCTC65iyJUaINyWxsiq1KD++qDQntfgQoynQTROZpUST84ERm1cSb2hqaG5haWhu bG5sZqEkznveoDJKSCA9sSQ1OzW1ILUIpo+Jg1OqgVG8+9Ph3YEVCYbxX3kia0KlXhgG/5tg 5bhQml2svsRj//mlt6V/KrD+jku/x36cYX23yYtDqyannJ9SXTbh84N1V02KzTtE35wM9fk9 Q9rbbcvmbC3R/FvhK/Sy3NZtuMt5N9eNjVlMN2A26yz9vjPyGboXixU5FnGWBFRna8w3vfVf v9+xU4mlOCPRUIu5qDgRACZuz/ygAgAA X-CMS-MailID: 20190417074835eucas1p19319bedd176d55e10b272881b7c68919 X-Msg-Generator: CA X-RootMTR: 20190417074835eucas1p19319bedd176d55e10b272881b7c68919 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190417074835eucas1p19319bedd176d55e10b272881b7c68919 References: <1555487288-4777-1-git-send-email-l.luba@partner.samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190417_004838_959068_E9536F0C X-CRM114-Status: GOOD ( 11.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, kgene@kernel.org, b.zolnierkie@samsung.com, krzk@kernel.org, l.luba@partner.samsung.com, cw00.choi@samsung.com, kyungmin.park@samsung.com, robh+dt@kernel.org, myungjoo.ham@samsung.com, s.nawrocki@samsung.com, m.szyprowski@samsung.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Extend the documenation by events description with new 'event-data-type' field. Add example how the event might be defined in DT. Signed-off-by: Lukasz Luba --- .../devicetree/bindings/devfreq/event/exynos-ppmu.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/devfreq/event/exynos-ppmu.txt b/Documentation/devicetree/bindings/devfreq/event/exynos-ppmu.txt index 3e36c1d..47feb5f 100644 --- a/Documentation/devicetree/bindings/devfreq/event/exynos-ppmu.txt +++ b/Documentation/devicetree/bindings/devfreq/event/exynos-ppmu.txt @@ -145,3 +145,21 @@ Example3 : PPMUv2 nodes in exynos5433.dtsi are listed below. reg = <0x104d0000 0x2000>; status = "disabled"; }; + +The 'event' type specified in the PPMU node defines 'event-name' +which also contains 'id' number and optionally 'event-data-type'. + +Example: + + events { + ppmu_leftbus_0: ppmu-event0-leftbus { + event-name = "ppmu-event0-leftbus"; + event-data-type = ; + }; + }; + +The 'event-data-type' defines the type of data which shell be counted +by the counter. You can check include/dt-bindings/pmu/exynos_ppmu.h for +all possible type, i.e. count read requests, count write data in bytes, +etc. This field is optional and when it is missing, the driver code will +use default data type.