Hi Nikita, Sorry for this issue caused by my patch. Yes, it because I did not add the !CONFIG_PM support when add the runtime pm patch. This may cause the clks cannot be enabled when do not enable CONFIG_PM. Sascha has fix this issue with the patch: 43b6bf406cd0 spi: imx: fix runtime pm support for !CONFIG_PM
You may try the latest upstream driver again. I also fix a warning dump issue with CONFIG_PM enabled. It is under reviewed. So that, this driver can work well in both cases. Thanks! Best Regards, Clark Wang > -----Original Message----- > From: Nikita Shubin <nikita.shu...@maquefel.me> > Sent: Friday, November 13, 2020 17:18 > To: Clark Wang <xiaoning.w...@nxp.com> > Cc: broo...@kernel.org; feste...@gmail.com; ker...@pengutronix.de; > linux-arm-ker...@lists.infradead.org; dl-linux-imx <linux-...@nxp.com>; > linux-kernel@vger.kernel.org; linux-...@vger.kernel.org; > s.ha...@pengutronix.de; shawn...@kernel.org; Nikita Shubin > <nikita.shu...@maquefel.me> > Subject: [EXT] [PATCH] spi: imx: enable runtime pm support > > Caution: EXT Email > > Hello Clark, > > This patch breaks spi-imx on imx7d. > Toradex Colibri imx7d spi reports with: > > [ 4.258468] inv-mpu6000-spi spi2.0: I/O Error in PIO > [ 4.264269] inv-mpu6000-spi spi2.0: SPI transfer failed: -110 > [ 4.264305] spi_master spi2: failed to transfer one message from queue > > We are using spi-imx with dma. > > Reverting your patch fixes this issue. > > The baseline commit 951cbbc386ff01b50da4f46387e994e81d9ab431 (tag: > v5.9.8, stable/linux-5.9.y) > > Could you please give some comments on this issue ?
