On Fri, Oct 18, 2019 at 10:52 AM Andrew Murray <andrew.murray@xxxxxxx> wrote:
>
> On Wed, Oct 16, 2019 at 03:06:32PM -0500, Rob Herring wrote:
> > Convert the Rockchip host bridge to use the common
> > pci_parse_request_of_pci_ranges().
> >
> > There's no need to assign the resources to a temporary list first. Just
> > use bridge->windows directly and remove all the temporary list handling.
> >
> > Cc: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
> > Cc: Andrew Murray <andrew.murray@xxxxxxx>
> > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> > Cc: Heiko Stuebner <heiko@xxxxxxxxx>
> > Cc: linux-rockchip@xxxxxxxxxxxxxxxxxxx
> > Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> > ---
> > v2:
> > - New patch
> >
> > drivers/pci/controller/pcie-rockchip-host.c | 36 ++++-----------------
> > 1 file changed, 7 insertions(+), 29 deletions(-)
> >
> > diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
> > index ef8e677ce9d1..8d2e6f2e141e 100644
> > --- a/drivers/pci/controller/pcie-rockchip-host.c
> > +++ b/drivers/pci/controller/pcie-rockchip-host.c
> > @@ -950,14 +950,10 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
> > struct device *dev = &pdev->dev;
> > struct pci_bus *bus, *child;
> > struct pci_host_bridge *bridge;
> > + struct resource *bus_res;
> > struct resource_entry *win;
> > - resource_size_t io_base;
> > - struct resource *mem;
> > - struct resource *io;
> > int err;
> >
> > - LIST_HEAD(res);
> > -
> > if (!dev->of_node)
> > return -ENODEV;
> >
> > @@ -995,29 +991,20 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
> > if (err < 0)
> > goto err_deinit_port;
> >
> > - err = devm_of_pci_get_host_bridge_resources(dev, 0, 0xff,
> > - &res, &io_base);
> > + err = pci_parse_request_of_pci_ranges(dev, &bridge->windows, &bus_res);
> > if (err)
> > goto err_remove_irq_domain;
> >
> > - err = devm_request_pci_bus_resources(dev, &res);
> > - if (err)
> > - goto err_free_res;
> > + rockchip->root_bus_nr = bus_res->start;
> >
> > /* Get the I/O and memory ranges from DT */
> > - resource_list_for_each_entry(win, &res) {
> > + resource_list_for_each_entry(win, &bridge->windows) {
> > switch (resource_type(win->res)) {
> > case IORESOURCE_IO:
> > io = win->res;
> > io->name = "I/O";
>
> In some patches of this series we drop the custom naming of memory resources,
> yet in others, like this one, we preserve the custom naming.
Actually, patch #11 drops it for rockchip.
> Should we be consistent in preserving the existing naming?
The custom naming seems a bit pointless IMO and something mindlessly
copied and pasted around, so I'd rather see removing the remaining
cases. The only ones left AFAICT are designware and V3.
Rob
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