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Date: Thu, 20 Jun 2019 22:37:56 +0530 From: Vinod Koul <vkoul@...nel.org> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Mathias Nyman <mathias.nyman@...el.com>, linux-arm-msm@...r.kernel.org, Bjorn Andersson <bjorn.andersson@...aro.org>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>, Christian Lamparter <chunkeey@...glemail.com> Subject: Re: [PATCH 5/5] usb: xhci: allow multiple firmware versions On 20-06-19, 14:20, Greg Kroah-Hartman wrote: > On Thu, Jun 20, 2019 at 03:51:54PM +0530, Vinod Koul wrote: > > Allow multiple firmware file versions in table and load them in > > increasing order as we find them in the file system. > > > > Signed-off-by: Vinod Koul <vkoul@...nel.org> > > Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> > > Cc: Christian Lamparter <chunkeey@...glemail.com> > > --- > > drivers/usb/host/xhci-pci.c | 39 +++++++++++++++++++++++++++++++++++++ > > 1 file changed, 39 insertions(+) > > > > diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > > index 3574afac44c5..2ee9e6bbabcb 100644 > > --- a/drivers/usb/host/xhci-pci.c > > +++ b/drivers/usb/host/xhci-pci.c > > @@ -333,9 +333,12 @@ static const struct renesas_fw_entry { > > * - uPD720201 ES 2.0 sample whose revision ID is 2. > > * - uPD720201 ES 2.1 sample & CS sample & Mass product, ID is 3. > > * - uPD720202 ES 2.0 sample & CS sample & Mass product, ID is 2. > > + * > > + * Entry expected_version should be kept in increasing order > > Why? I should have explained more :) This is required only for the devices which have multiple versions available, so it will pick one try it out and if not found go to subsequent one. So I thought it would be make sense to keep the version values for a specific device (not whole table) ordered so that we can pick the next entry. Of course if you have better idea to manage two versions, am all ears :) > > > */ > > { "K2013080.mem", 0x0014, 0x02, 0x2013 }, > > { "K2013080.mem", 0x0014, 0x03, 0x2013 }, > > + { "K2026090.mem", 0x0014, 0x03, 0x2026 }, > > { "K2013080.mem", 0x0015, 0x02, 0x2013 }, > > Just put a { } entry here at the end and then you don't care about the > order at all. Much simpler and easier to maintain over time. > -- ~Vinod
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