linux-kernel - Re: [PATCH v4] PCI: keystone: Fix pci

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Date: Tue, 26 Mar 2024 10:49:42 +0100
From: Niklas Cassel <cassel@...nel.org>
To: Siddharth Vadapalli <s-vadapalli@...com>
Cc: lpieralisi@...nel.org, kw@...ux.com, robh@...nel.org,
	bhelgaas@...gle.com, manivannan.sadhasivam@...aro.org,
	fancer.lancer@...il.com, u.kleine-koenig@...gutronix.de,
	dlemoal@...nel.org, yoshihiro.shimoda.uh@...esas.com,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, srk@...com
Subject: Re: [PATCH v4] PCI: keystone: Fix pci_ops for AM654x SoC

On Tue, Mar 26, 2024 at 10:29:10AM +0530, Siddharth Vadapalli wrote:
> On Mon, Mar 25, 2024 at 02:45:09PM +0100, Niklas Cassel wrote:
> > 
> > In fact, if you move this code to ks_pcie_msi_host_init(), instead of
> > ks_pcie_host_init(), you would not need a comment (or a if (!ks_pcie->is_am6)),
> > since ks_pcie_msi_host_init() is only executed by !am654.
> 
> This seems much better :)
> 
> In the current code, the execution is as follows:
> 
> 	ks_pcie_probe()
> 	    dw_pcie_host_init()
> 	        pci_host_probe()
> 	            ks_pcie_v3_65_add_bus()
> 
> Moving the contents of ks_pcie_v3_65_add_bus() to ks_pcie_msi_host_init()
> will result in:
> 
> 	ks_pcie_probe()
> 	    dw_pcie_host_init()
> 	    	if (pci_msi_enabled())
> 			if (pp->ops->msi_init) {
> 				ret = pp->ops->msi_init(pp);
> 					ks_pcie_msi_host_init()
> 	        pci_host_probe()
> 
> I will update this patch based on your suggestion. If it's alright, may I
> also add your "Suggested-by" tag for the v5 patch? Please let me know.

Fine by me :)


Kind regards,
Niklas