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Date: Fri, 1 Jul 2022 12:17:33 +0200 From: Andy Shevchenko <andy.shevchenko@...il.com> To: Saravana Kannan <saravanak@...gle.com> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, Laurentiu Tudor <laurentiu.tudor@....com>, Jiri Slaby <jirislaby@...nel.org>, Michael Ellerman <mpe@...erman.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Paul Mackerras <paulus@...ba.org>, Joel Stanley <joel@....id.au>, Andrew Jeffery <andrew@...id.au>, Nicolas Saenz Julienne <nsaenz@...nel.org>, Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, Florian Fainelli <f.fainelli@...il.com>, Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>, Al Cooper <alcooperx@...il.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Paul Cercueil <paul@...pouillou.net>, Vladimir Zapolskiy <vz@...ia.com>, Matthias Brugger <matthias.bgg@...il.com>, Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>, Masami Hiramatsu <mhiramat@...nel.org>, Tobias Klauser <tklauser@...tanz.ch>, Russell King <linux@...linux.org.uk>, Vineet Gupta <vgupta@...nel.org>, Richard Genoud <richard.genoud@...il.com>, Nicolas Ferre <nicolas.ferre@...rochip.com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, Claudiu Beznea <claudiu.beznea@...rochip.com>, Alexander Shiyan <shc_work@...l.ru>, Baruch Siach <baruch@...s.co.il>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>, Karol Gugala <kgugala@...micro.com>, Mateusz Holenko <mholenko@...micro.com>, Gabriel Somlo <gsomlo@...il.com>, Neil Armstrong <narmstrong@...libre.com>, Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, Martin Blumenstingl <martin.blumenstingl@...glemail.com>, Taichi Sugaya <sugaya.taichi@...ionext.com>, Takao Orito <orito.takao@...ionext.com>, Liviu Dudau <liviu.dudau@....com>, Sudeep Holla <sudeep.holla@....com>, Lorenzo Pieralisi <lpieralisi@...nel.org>, Andy Gross <agross@...nel.org>, Bjorn Andersson <bjorn.andersson@...aro.org>, Pali Rohar <pali@...nel.org>, Andreas Farber <afaerber@...e.de>, Manivannan Sadhasivam <mani@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, Alim Akhtar <alim.akhtar@...sung.com>, Laxman Dewangan <ldewangan@...dia.com>, Palmer Dabbelt <palmer@...belt.com>, Paul Walmsley <paul.walmsley@...ive.com>, Orson Zhai <orsonzhai@...il.com>, Baolin Wang <baolin.wang7@...il.com>, Chunyan Zhang <zhang.lyra@...il.com>, Patrice Chotard <patrice.chotard@...s.st.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, "David S. Miller" <davem@...emloft.net>, Hammer Hsieh <hammerh0314@...il.com>, Peter Korsgaard <jacmet@...site.dk>, Timur Tabi <timur@...nel.org>, Michal Simek <michal.simek@...inx.com>, Rob Herring <robh@...nel.org>, sascha hauer <sha@...gutronix.de>, peng fan <peng.fan@....com>, kevin hilman <khilman@...nel.org>, ulf hansson <ulf.hansson@...aro.org>, len brown <len.brown@...el.com>, pavel machek <pavel@....cz>, joerg roedel <joro@...tes.org>, will deacon <will@...nel.org>, andrew lunn <andrew@...n.ch>, heiner kallweit <hkallweit1@...il.com>, eric dumazet <edumazet@...gle.com>, jakub kicinski <kuba@...nel.org>, paolo abeni <pabeni@...hat.com>, linus walleij <linus.walleij@...aro.org>, hideaki yoshifuji <yoshfuji@...ux-ipv6.org>, david ahern <dsahern@...nel.org>, Android Kernel Team <kernel-team@...roid.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux PM <linux-pm@...r.kernel.org>, "list@....net:IOMMU DRIVERS" <iommu@...ts.linux-foundation.org>, netdev <netdev@...r.kernel.org>, "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>, "open list:LINUX FOR POWERPC PA SEMI PWRFICIENT" <linuxppc-dev@...ts.ozlabs.org>, "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>, linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>, "moderated list:ARM/ASPEED MACHINE SUPPORT" <linux-aspeed@...ts.ozlabs.org>, linux-rpi-kernel <linux-rpi-kernel@...ts.infradead.org>, "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>, "moderated list:ARM/Mediatek SoC support" <linux-mediatek@...ts.infradead.org>, linux-tegra <linux-tegra@...r.kernel.org>, linux-snps-arc@...ts.infradead.org, linux-amlogic <linux-amlogic@...ts.infradead.org>, linux-arm-msm <linux-arm-msm@...r.kernel.org>, linux-actions@...ts.infradead.org, linux-unisoc@...ts.infradead.org, Linux Samsung SOC <linux-samsung-soc@...r.kernel.org>, linux-riscv <linux-riscv@...ts.infradead.org>, linux-stm32@...md-mailman.stormreply.com, Sparc kernel list <sparclinux@...r.kernel.org>, Ahmad Fatoum <a.fatoum@...gutronix.de> Subject: Re: [PATCH v2 2/2] serial: Set probe_no_timeout for all DT based drivers On Fri, Jul 1, 2022 at 3:28 AM Saravana Kannan <saravanak@...gle.com> wrote: > > With commit 71066545b48e ("driver core: Set fw_devlink.strict=1 by > default") the probing of TTY consoles could get delayed if they have > optional suppliers that are listed in DT, but those suppliers don't > probe by the time kernel boot finishes. The console devices will probe > eventually after driver_probe_timeout expires. > > However, since consoles are often used for debugging kernel issues, it > does not make sense to delay their probe. So, set the newly added > probe_no_timeout flag for all serial drivers that at DT based. This way, > fw_devlink will know not to delay the probing of the consoles past > kernel boot. Same question, do you think only serial drivers need that? -- With Best Regards, Andy Shevchenko
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