On 04/13/2019 07:38 PM, Sergei Shtylyov wrote: >> Add a driver for Renesas R-Car Gen3 RPC-IF SPI controller. >> >> Signed-off-by: Mason Yang <[email protected]> >> Signed-off-by: Sergei Shtylyov <[email protected]> > [...] >> diff --git a/drivers/spi/spi-renesas-rpc.c b/drivers/spi/spi-renesas-rpc.c >> new file mode 100644 >> index 0000000..037f273 >> --- /dev/null >> +++ b/drivers/spi/spi-renesas-rpc.c > [...] >> +static int rpc_spi_probe(struct platform_device *pdev) >> +{ >> + struct spi_controller *ctlr; >> + struct rpc_mfd *rpc_mfd = dev_get_drvdata(pdev->dev.parent); >> + struct rpc_spi *rpc; >> + int ret; >> + >> + ctlr = spi_alloc_master(&pdev->dev, sizeof(*rpc)); >> + if (!ctlr) >> + return -ENOMEM; >> + >> + platform_set_drvdata(pdev, ctlr); >> + >> + rpc = spi_controller_get_devdata(ctlr); >> + >> + ctlr->dev.of_node = pdev->dev.of_node; > [...] >> + >> + pm_runtime_enable(&pdev->dev); >> + ctlr->auto_runtime_pm = true; > > I think this line no longer works as expected with the new probing scheme. > Have you tested reading? v8 patch still works while v9 patches hang on doing: > > $ cat /dev/mtd<n>...
Sorry, 'od -x', not 'cat'. WBR, Sergei
