Make usage of clock and reset bulk API in order to simplify the code
Reviewed-by: Marek Vasut marex@denx.de Signed-off-by: Fabrice Gasnier fabrice.gasnier@foss.st.com ---
Changes in v2: - fix copy/paste on dev_err message since Marek's review comment - add Marek's review tag
--- drivers/usb/host/ohci-generic.c | 92 +++++++++++---------------------- 1 file changed, 29 insertions(+), 63 deletions(-)
diff --git a/drivers/usb/host/ohci-generic.c b/drivers/usb/host/ohci-generic.c index 2d8d38ce9a40..ceed1911a95a 100644 --- a/drivers/usb/host/ohci-generic.c +++ b/drivers/usb/host/ohci-generic.c @@ -16,75 +16,41 @@
struct generic_ohci { ohci_t ohci; - struct clk *clocks; /* clock list */ - struct reset_ctl *resets; /* reset list */ + struct clk_bulk clocks; /* clock list */ + struct reset_ctl_bulk resets; /* reset list */ struct phy phy; - int clock_count; /* number of clock in clock list */ - int reset_count; /* number of reset in reset list */ };
static int ohci_usb_probe(struct udevice *dev) { struct ohci_regs *regs = dev_read_addr_ptr(dev); struct generic_ohci *priv = dev_get_priv(dev); - int i, err, ret, clock_nb, reset_nb; - - err = 0; - priv->clock_count = 0; - clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells", - 0); - if (clock_nb > 0) { - priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk), - GFP_KERNEL); - if (!priv->clocks) - return -ENOMEM; - - for (i = 0; i < clock_nb; i++) { - err = clk_get_by_index(dev, i, &priv->clocks[i]); - if (err < 0) - break; - - err = clk_enable(&priv->clocks[i]); - if (err && err != -ENOSYS) { - dev_err(dev, "failed to enable clock %d\n", i); - clk_free(&priv->clocks[i]); - goto clk_err; - } - priv->clock_count++; - } - } else if (clock_nb != -ENOENT) { - dev_err(dev, "failed to get clock phandle(%d)\n", clock_nb); - return clock_nb; + int err, ret; + + ret = clk_get_bulk(dev, &priv->clocks); + if (ret && ret != -ENOENT) { + dev_err(dev, "Failed to get clocks (ret=%d)\n", ret); + return ret; + } + + err = clk_enable_bulk(&priv->clocks); + if (err) { + dev_err(dev, "Failed to enable clocks (err=%d)\n", err); + goto clk_err; }
- priv->reset_count = 0; - reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells", - 0); - if (reset_nb > 0) { - priv->resets = devm_kcalloc(dev, reset_nb, - sizeof(struct reset_ctl), - GFP_KERNEL); - if (!priv->resets) - return -ENOMEM; - - for (i = 0; i < reset_nb; i++) { - err = reset_get_by_index(dev, i, &priv->resets[i]); - if (err < 0) - break; - - err = reset_deassert(&priv->resets[i]); - if (err) { - dev_err(dev, "failed to deassert reset %d\n", i); - reset_free(&priv->resets[i]); - goto reset_err; - } - priv->reset_count++; - } - } else if (reset_nb != -ENOENT) { - dev_err(dev, "failed to get reset phandle(%d)\n", reset_nb); + err = reset_get_bulk(dev, &priv->resets); + if (err && err != -ENOENT) { + dev_err(dev, "failed to get resets (err=%d)\n", err); goto clk_err; }
+ err = reset_deassert_bulk(&priv->resets); + if (err) { + dev_err(dev, "failed to deassert resets (err=%d)\n", err); + goto reset_err; + } + err = generic_setup_phy(dev, &priv->phy, 0); if (err) goto reset_err; @@ -101,13 +67,13 @@ phy_err: dev_err(dev, "failed to shutdown usb phy\n");
reset_err: - ret = reset_release_all(priv->resets, priv->reset_count); + ret = reset_release_bulk(&priv->resets); if (ret) - dev_err(dev, "failed to assert all resets\n"); + dev_err(dev, "failed to release resets (ret=%d)\n", ret); clk_err: - ret = clk_release_all(priv->clocks, priv->clock_count); + ret = clk_release_bulk(&priv->clocks); if (ret) - dev_err(dev, "failed to disable all clocks\n"); + dev_err(dev, "failed to release clocks (ret=%d)\n", ret);
return err; } @@ -125,11 +91,11 @@ static int ohci_usb_remove(struct udevice *dev) if (ret) return ret;
- ret = reset_release_all(priv->resets, priv->reset_count); + ret = reset_release_bulk(&priv->resets); if (ret) return ret;
- return clk_release_all(priv->clocks, priv->clock_count); + return clk_release_bulk(&priv->clocks); }
static const struct udevice_id ohci_usb_ids[] = {