Hi Ivan,
On Mon, 23 Feb 2015 11:59:14 +0200
"Ivan T. Ivanov" <iivanov@xxxxxxxxxx> wrote:
> Hi Gilad,
>
> On Thu, 2015-02-19 at 15:54 -0700, Gilad Avidov wrote:
> > Qualcomm PMIC Arbiter version-2 changes from version-1 are:
> >
> > - Some different register offsets.
> > - New channel register space, one per PMIC peripheral (ppid).
> > All tx traffic uses these channels.
> > - New observer register space. All rx trafic uses this space.
> > - Different command format for spmi command registers.
> >
> > Acked-by: Sagar Dharia <sdharia@xxxxxxxxxxxxxx>
> > Signed-off-by: Gilad Avidov <gavidov@xxxxxxxxxxxxxx
> >
>
> <snip>
>
> > @@ -645,12 +796,67 @@ static int spmi_pmic_arb_probe(struct
> > platform_device *pdev) pa->spmic = ctrl;
> >
> > res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> > "core");
> > - pa->base = devm_ioremap_resource(&ctrl->dev, res);
> > - if (IS_ERR(pa->base)) {
> > - err = PTR_ERR(pa->base);
> > + core = devm_ioremap_resource(&ctrl->dev, res);
> > + if (IS_ERR(core)) {
> > + err = PTR_ERR(core);
> > goto err_put_ctrl;
> > }
> >
> > + hw_ver = readl_relaxed(core + PMIC_ARB_VERSION);
> > + is_v1 = (hw_ver < PMIC_ARB_VERSION_V2_MIN);
> > +
> > + dev_info(&ctrl->dev, "PMIC Arb Version-%d (0x%x)\n",
> > (is_v1 ? 1 : 2),
> > + hw_ver);
> > +
> > + if (is_v1) {
> > + pa->ver_ops = &pmic_arb_v1;
> > + pa->wr_base = core;
> > + pa->rd_base = core;
> > + } else {
> > + u8 chan;
> > + u16 ppid;
> > + u32 regval;
> > +
> > + pa->ver_ops = &pmic_arb_v2;
> > + devm_iounmap(&ctrl->dev, core);
> > +
> > + pa->ppid_to_chan = devm_kzalloc(&ctrl->dev,
> > + PPID_TO_CHAN_TABLE_SZ,
> > GFP_KERNEL);
> > + if (!pa->ppid_to_chan) {
> > + err = -ENOMEM;
> > + goto err_put_ctrl;
> > + }
> > + /*
> > + * PMIC_ARB_REG_CHNL is a table in HW
> > mapping channel to ppid.
> > + * ppid_to_chan is an in-memory invert of
> > that table.
> > + */
> > + for (chan = 0; chan < PMIC_ARB_MAX_CHNL; ++chan) {
> > + regval = readl_relaxed(pa->rd_base +
>
> rd_base is not initialized at this point.
correct.
>
> > +
> > PMIC_ARB_REG_CHNL(chan));
> > + if (!regval)
> > + continue;
> > +
> > + ppid = (regval >> 8) & 0xFFF;
> > + pa->ppid_to_chan[ppid] = chan;
> > + }
> > +
> > + res = platform_get_resource_byname(pdev,
> > IORESOURCE_MEM,
> > +
> > "obsrvr");
> > + pa->rd_base = devm_ioremap_resource(&ctrl->dev,
> > res);
>
> and they are compile warnings:
>
> drivers/spmi/spmi-pmic-arb.c: In function ‘pmic_arb_read_cmd’:
> drivers/spmi/spmi-pmic-arb.c:310:4: warning: format ‘%d’ expects
> argument of type ‘int’, but argument 4 has type ‘size_t’ [-Wformat=]
> PMIC_ARB_MAX_TRANS_BYTES, len); ^
> drivers/spmi/spmi-pmic-arb.c: In function ‘pmic_arb_write_cmd’:
> drivers/spmi/spmi-pmic-arb.c:357:4: warning: format ‘%d’ expects
> argument of type ‘int’, but argument 4 has type ‘size_t’ [-Wformat=]
> PMIC_ARB_MAX_TRANS_BYTES, len); ^
>
> Ivan
Sorry about that. I'll fix it.
Thanks,
Gilad
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