Messages in this thread | | | From | Alan Tull <> | Date | Mon, 7 May 2018 16:12:17 -0500 | Subject | Re: [PATCH v5 19/28] fpga: dfl: fme-mgr: add compat_id support |
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On Tue, May 1, 2018 at 9:50 PM, Wu Hao <hao.wu@intel.com> wrote:
Hi Hao,
> This patch adds compat_id support to fme manager driver, it > reads the ID from the hardware register. And it could be used > for compatibility check before partial reconfiguration. > > Signed-off-by: Wu Hao <hao.wu@intel.com> Acked-by: Alan Tull <atull@kernel.org>
> --- > drivers/fpga/dfl-fme-mgr.c | 15 +++++++++++++++ > 1 file changed, 15 insertions(+) > > diff --git a/drivers/fpga/dfl-fme-mgr.c b/drivers/fpga/dfl-fme-mgr.c > index 1c5bc5a..afcdb39 100644 > --- a/drivers/fpga/dfl-fme-mgr.c > +++ b/drivers/fpga/dfl-fme-mgr.c > @@ -272,9 +272,17 @@ static u64 fme_mgr_status(struct fpga_manager *mgr) > .status = fme_mgr_status, > }; > > +static void fme_mgr_get_compat_id(void __iomem *fme_pr, > + struct fpga_compat_id *id) > +{ > + id->id_l = readq(fme_pr + FME_PR_INTFC_ID_L); > + id->id_h = readq(fme_pr + FME_PR_INTFC_ID_H); > +} > + > static int fme_mgr_probe(struct platform_device *pdev) > { > struct dfl_fme_mgr_pdata *pdata = dev_get_platdata(&pdev->dev); > + struct fpga_compat_id *compat_id; > struct device *dev = &pdev->dev; > struct fme_mgr_priv *priv; > struct fpga_manager *mgr; > @@ -295,11 +303,18 @@ static int fme_mgr_probe(struct platform_device *pdev) > return PTR_ERR(priv->ioaddr); > } > > + compat_id = devm_kzalloc(dev, sizeof(*compat_id), GFP_KERNEL); > + if (!compat_id) > + return -ENOMEM; > + > + fme_mgr_get_compat_id(priv->ioaddr, compat_id); > + > mgr = fpga_mgr_create(dev, "DFL FME FPGA Manager", > &fme_mgr_ops, priv); > if (!mgr) > return -ENOMEM; > > + mgr->compat_id = compat_id; > platform_set_drvdata(pdev, mgr); > > ret = fpga_mgr_register(mgr); > -- > 1.8.3.1 >
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