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Mon, 08 Jul 2024 09:09:48 +0200 Message-ID: <5bb059a0-b94c-44cd-b18f-4e2a79a6e8a3@web.de> Date: Mon, 8 Jul 2024 09:09:46 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [09/10] drm/imx: Add i.MX8qxp Display Controller KMS To: Liu Ying , dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, devicetree@vger.kernel.org Cc: LKML , Conor Dooley , Daniel Vetter , David Airlie , Fabio Estevam , Krzysztof Kozlowski , Maarten Lankhorst , Maxime Ripard , Philipp Zabel , Rob Herring , Sascha Hauer , Shawn Guo , Thomas Gleixner , Thomas Zimmermann References: <20240705090932.1880496-10-victor.liu@nxp.com> <6595d4fa-2e83-4380-b36e-9c4d910aadea@web.de> <3b91320f-730e-46e4-9c96-8c348bf9a2a2@nxp.com> Content-Language: en-GB From: Markus Elfring In-Reply-To: <3b91320f-730e-46e4-9c96-8c348bf9a2a2@nxp.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:zZFDSWkyyalWyOFIig9SO2WM02MNHSHIkbmdG+A5Z3yZlFb8Mhq cTJN60ko+TR3/WLilCtUAGSkAbjXDbvsuATZnkS/EQMhUwzVdqrjyPsvuvJhThnHUzsGBxt +zz5hU8giM+2aLSNTVmu3oXtv4NNGf5aUcZ3zBswNK0TGmPFDvYG6oGDFX8uAH3DYcpW16w eXTnx3S2VH81Bj1TzbGgQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:9D+LPmG7TBo=;do29/MKV/GC3mcS425948u80aBB Adfa5xzyA4sNgWisMHP5MApTFgPWNrB5mrqNTOIhyFKftorxfWEsj52jnEQVVFwMxS6T61Z4v QBnURRW7R3TjaUeITtSJqriZ7+q94jt3kEgZNrzO5x10uxHULatYJ+AeaPnOXAwYEr0DVxWGC ZxYGg1tvx88Ar8El8n/vY2FLccwEHgGxsNSL28t+NFD6vcP1mAgG/1xFYnPwN+qkOY6HWa33x ncWv3Uhei5JI57D3egfrs9fNB6wb7bRrg3/1vblMre5iKNMBEmBsam3J+BP/lBX9KxkVvRCw1 zd5KE7C9rXoveJB/apWNGg8fmYxld9Ex5/nlmOVkpcuur85+a+C+FooY4rHUAf1v8QNTcxbW9 R3demM9LlgMHqjnzzVj4FpGfYHwtdJl/bbClfVM1/5R8TuAROcOuMgqlA/dkeNNuq9kPu51tS qQcBGaRjaQfQGG0tRZisSGbh8mi7Ahm5Lt3VLz7Lux3p8zD3k2mIwg35lCpy/3izr/s6wXZPc uDfMDv+Sv7a28CXOlmTCQLqL/BtoOhbCI3fhz63vCeD2N4YnG/z6pwZoeQCtl1TXdJh5s0JLC 91/43e9NQkYnZy14s6XieeOaIb3R50AAEjj4DkmGK5Q3WT5DTDn/CSQS6OklakOwK0KrIo3b6 J2PcyH3S0HWU3Z0S0rwIYSVC0yI5N7yU06PHHqGfojhQaUZjZol2HcYMKbU17xA1fuT+JyMYf qjCHqeuZBD6vj6ZBydsp+GoLSK8nPJ16vAtaZf+5MUZaMaN+8gaacOZdFScf6acosgcGukPXy dVEao9+T59e/SpXZTU2zigg78UJtY4rHsmssTxyiFzZy0= >> Under which circumstances would you become interested to apply a statem= ent >> like =E2=80=9Cguard(spinlock_irqsave)(&crtc->dev->event_lock);=E2=80=9D= ? > > I just follow the kerneldoc of drm_crtc_send_vblank_event() to > hold event lock like many other drivers do. Please take another look at software design possibilities to benefit more from further applications of scope-based resource management. Regards, Markus