On Fri, May 15, 2020 at 01:18:15PM +0100, Mark Brown wrote: > On Fri, May 15, 2020 at 03:01:11PM +0300, Andy Shevchenko wrote: > > > General question, doesn't spi core provides us some helpers like > > spi_delay_exec()? > > Well, nobody wrote one. spi_delay_exec() seems quite good to be used here. Can we use it for delays? > It's also a bit tricky to handle given that > often you're checking some controller specific things while a FIFO in > the IP drains/fills, though nothing insurmountable. Yes, input can be gathered by reading controller specific data. -- With Best Regards, Andy Shevchenko
Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
- Subject: Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
- From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
- Date: Fri, 15 May 2020 15:37:02 +0300
- Cc: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>, Serge Semin <fancer.lancer@xxxxxxxxx>, Georgy Vlasov <Georgy.Vlasov@xxxxxxxxxxxxxxxxxxxx>, Ramil Zaripov <Ramil.Zaripov@xxxxxxxxxxxxxxxxxxxx>, Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Paul Burton <paulburton@xxxxxxxxxx>, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Allison Randal <allison@xxxxxxxxxxx>, Gareth Williams <gareth.williams.jx@xxxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, linux-mips@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>, Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "wuxu.wu" <wuxu.wu@xxxxxxxxxx>, Clement Leger <cleger@xxxxxxxxx>, linux-spi@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <20200515121815.GB5066@sirena.org.uk>
- Ironport-sdr: pneLbE16RwHOol9ExixIWXIskz2yGmmOtNF7SO4rky20ZJwPjOCtwS9RdU9AIoRzeNeDzYB0HD DqdPb1+npt0g==
- Ironport-sdr: MSSMqBWQSRkTPqioy+AVBCKIQQ6v+z9cIciN7NuFyP0CxYTzi4PEVeZ2q3nvdeNLNAVKfuZCdW vJT+SBAfJrnQ==
- Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo
- References: <20200508132943.9826-1-Sergey.Semin@baikalelectronics.ru> <20200515104758.6934-1-Sergey.Semin@baikalelectronics.ru> <20200515104758.6934-3-Sergey.Semin@baikalelectronics.ru> <20200515120111.GV185537@smile.fi.intel.com> <20200515121815.GB5066@sirena.org.uk>
- Follow-Ups:
- References:
- [PATCH 00/17] spi: dw: Add generic DW DMA controller support
- From: Serge Semin
- [PATCH v2 00/19] spi: dw: Add generic DW DMA controller support
- From: Serge Semin
- Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
- From: Andy Shevchenko
- Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
- From: Mark Brown
- [PATCH 00/17] spi: dw: Add generic DW DMA controller support
- Prev by Date: Re: [PATCH v2 06/19] spi: dw: Discard static DW DMA slave structures
- Next by Date: Re: [PATCH v2 07/19] spi: dw: Discard unused void priv pointer
- Previous by thread: Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
- Next by thread: Re: [PATCH v2 02/19] spi: dw: Add Tx/Rx finish wait methods to the MID DMA
- Index(es):
 |