RE: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Richard Zhu
rg; > linux-kernel@vger.kernel.org; linux-arm-ker...@lists.infradead.org > Subject: Re: [v2] PCI: imx: make msi work without pcieportbus > > On Thu, Dec 13, 2018 at 08:02:11AM +, Richard Zhu wrote: > > MSI_EN of iMX PCIe RC would be asserted when PCIEPORTBUS driver is > > sel

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Bjorn Helgaas
On Thu, Dec 13, 2018 at 08:02:11AM +, Richard Zhu wrote: > MSI_EN of iMX PCIe RC would be asserted when > PCIEPORTBUS driver is selected. > Thus, the MSI works fine on iMX PCIe before. > Assert it unconditionally when MSI is supported. > Otherwise, the MSI wouldn't be triggered although > the

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Lucas Stach
om; andrew.smir...@gmail.com > > > > > > > > Cc: linux-...@vger.kernel.org; > > > > > > > > linux-arm-ker...@lists.infradead.org; > > > > > > > > linux-kernel@vger.kernel.org > > > > Subject: Re: [v2] PCI: imx: make

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Lorenzo Pieralisi
2018年12月13日 17:19 > > > > > > > To: Richard Zhu ; bhelg...@google.com; > > > lorenzo.pieral...@arm.com; andrew.smir...@gmail.com > > > > > > > Cc: linux-...@vger.kernel.org; > > > > > > > linux-arm-ker...@lists.infradead.org

RE: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Richard Zhu
rg; > linux-kernel@vger.kernel.org > Subject: Re: [v2] PCI: imx: make msi work without pcieportbus > > Am Donnerstag, den 13.12.2018, 09:57 + schrieb Richard Zhu: > > Hi Lucas: > > > > > -Original Message- > > > > > From: Lucas S

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Lucas Stach
.com; > > lorenzo.pieral...@arm.com; andrew.smir...@gmail.com > > > > > > Cc: linux-...@vger.kernel.org; linux-arm-ker...@lists.infradead.org; > > linux-kernel@vger.kernel.org > > Subject: Re: [v2] PCI: imx: make msi work without pcieportbus > > > > Hi Richa

RE: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Richard Zhu
rg; > linux-kernel@vger.kernel.org > Subject: Re: [v2] PCI: imx: make msi work without pcieportbus > > Hi Richard, > > Am Donnerstag, den 13.12.2018, 08:02 + schrieb Richard Zhu: > > MSI_EN of iMX PCIe RC would be asserted when PCIEPORTBUS driver is > > selected.

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Lucas Stach
Hi Richard, Am Donnerstag, den 13.12.2018, 08:02 + schrieb Richard Zhu: > MSI_EN of iMX PCIe RC would be asserted when > PCIEPORTBUS driver is selected. > Thus, the MSI works fine on iMX PCIe before. > Assert it unconditionally when MSI is supported. > Otherwise, the MSI wouldn't be triggered

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Baruch Siach
il.com; >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org; >> linux-arm-ker...@lists.infradead.org >> Subject: Re: [v2] PCI: imx: make msi work without pcieportbus >> >> Richard Zhu writes: >> > MSI_EN of iMX PCIe RC would be asserted when PCIEPORTBU

RE: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Richard Zhu
r.kernel.org; > linux-arm-ker...@lists.infradead.org > Subject: Re: [v2] PCI: imx: make msi work without pcieportbus > > Hi Richard, > > One more comment that occurred to me only now. > > Richard Zhu writes: > > MSI_EN of iMX PCIe RC would be asserted when PCIEPORT

Re: [v2] PCI: imx: make msi work without pcieportbus

2018-12-13 Thread Baruch Siach
Hi Richard, One more comment that occurred to me only now. Richard Zhu writes: > MSI_EN of iMX PCIe RC would be asserted when > PCIEPORTBUS driver is selected. > Thus, the MSI works fine on iMX PCIe before. > Assert it unconditionally when MSI is supported. > Otherwise, the MSI wouldn't be