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Date: Thu, 29 Aug 2013 13:43:00 +0900 From: Jingoo Han <jg1.han@...sung.com> To: 'Pratyush Anand' <pratyush.anand@...com> Cc: 'Bjorn Helgaas' <bhelgaas@...gle.com>, linux-pci@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 'Kukjin Kim' <kgene.kim@...sung.com>, 'Mohit KUMAR DCG' <Mohit.KUMAR@...com>, 'Siva Reddy Kallam' <siva.kallam@...sung.com>, 'SRIKANTH TUMKUR SHIVANAND' <ts.srikanth@...sung.com>, 'Arnd Bergmann' <arnd@...db.de>, 'Sean Cross' <xobs@...agi.com>, 'Kishon Vijay Abraham I' <kishon@...com>, 'Thierry Reding' <thierry.reding@...il.com>, 'Thomas Petazzoni' <thomas.petazzoni@...e-electrons.com>, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com> Subject: Re: [PATCH V2] PCI: exynos: add support for MSI On Thursday, August 29, 2013 12:45 PM, Pratyush Anand wrote: > On Wed, Aug 28, 2013 at 04:17:24PM +0800, Jingoo Han wrote: > > On Friday, August 23, 2013 5:36 PM, Pratyush Anand wrote: > > > On Fri, Aug 23, 2013 at 02:04:20PM +0800, Jingoo Han wrote: > > > > [...] > > > > #define MAX_PCIE_PORT_SUPPORTED 3 > > > static DECLARE_BITMAP(msi_irq_in_use[MAX_PCIE_PORT_SUPPORTED], > > > NUM_MSI_IRQS); > > > static unsigned int *msi_data[MAX_PCIE_PORT_SUPPORTED]; > > > > No, there is no need to do it. > > Without this, we can use 3 RCs by adding a node of 3rd RC to dt file. > > > > Yes, you can use RCs by adding nodes to dt file. But you will need one > msi_irq_in_use and one msi_data per RC (ie per port in this driver), isn't it? Aha, you're right. A few minutes ago, I found the same value of msi_data is used for 2 different RCs. It is my fault. As you mentioned, one msi_data per RC should be used. I will modify it in order to use one msi_data per RC. Thank you for your kind description. :-) Best regards, Jingoo Han -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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