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Date: Mon, 19 Jun 2017 15:01:26 +0530 From: Arvind Yadav <arvind.yadav.cs@...il.com> To: Kishon Vijay Abraham I <kishon@...com>, Bjorn Helgaas <helgaas@...nel.org> Cc: bhelgaas@...gle.com, linux-omap@...r.kernel.org, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v3] PCI: dwc: dra7xx: Fix compilation warning. Hi, Thanks for you suggestion. I will update change log and re-submit. Regards ~arvind On Monday 19 June 2017 02:49 PM, Kishon Vijay Abraham I wrote: > Hi, > > On Friday 16 June 2017 01:48 PM, Arvind Yadav wrote: >> Hi Kishon/Bjorn, >> >> What is correct Setting for these two PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI and >> PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN register. >> >> Value of register After change: >> register[PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI] = LEG_EP_INTERRUPTS | MSI >> = 0x1f >> register[PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN] = INTERRUPTS >> = 0x1fff >> Is this correct? > That's correct. That patch as such is correct but the changelog and subject has > to be fixed. You can use something like below for subject and changelog. > > "PCI: dwc: dra7xx: Fix incorrect usage of IRQSTATUS_* registers > > commit 47ff3de911 ("PCI: dra7xx: Add TI DRA7xx PCIe driver") in order to clear > MSI and MAIN interrupts requests wrote '0' to PCIECTRL_TI_CONF_IRQSTATUS_MSI > and PCIECTRL_TI_CONF_IRQSTATUS_MAIN registers. However the TRM has mentioned to > write '1' to clear pending event in these two registers. Fix it here. > > This also helps to get rid of the following compilation warning: > drivers/pci/dwc/pci-dra7xx.c: In function ‘dra7xx_pcie_enable_msi_interrupts’: > drivers/pci/dwc/pci-dra7xx.c:177:7: warning: large integer implicitly truncated > to unsigned type [-Woverflow] > ~LEG_EP_INTERRUPTS & ~MSI); > ^ > drivers/pci/dwc/pci-dra7xx.c: In function ‘dra7xx_pcie_enable_wrapper_interrupts’: > drivers/pci/dwc/pci-dra7xx.c:187:7: warning: large integer implicitly truncated > to unsigned type [-Woverflow] > ~INTERRUPTS);" > > For the patch itself > Acked-by: Kishon Vijay Abraham I <kishon@...com> > > Thanks > Kishon
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