Messages in this thread | | | Subject | Re: [PATCH 4/4] net: stmmac: stmmac_platform: use correct setup function for gmac4 | From | Alexandre Torgue <> | Date | Thu, 24 Nov 2016 18:58:35 +0100 |
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Hi Niklas,
On 11/23/2016 03:25 PM, Niklas Cassel wrote: > From: Niklas Cassel <niklas.cassel@axis.com> > > devicetree binding for stmmac states: > - compatible: Should be "snps,dwmac-<ip_version>", "snps,dwmac" > For backwards compatibility: "st,spear600-gmac" is also supported. > > Previously, when specifying "snps,dwmac-4.10a", "snps,dwmac" as your > compatible string, plat_stmmacenet_data would have both has_gmac and > has_gmac4 set. > > This would lead to stmmac_hw_init calling dwmac1000_setup rather than > dwmac4_setup, resulting in a non-functional driver. > This happened since the check for has_gmac is done before the check for > has_gmac4. However, the order should not matter, so it does not make sense > to have both set.
Well spot.
> > If something is valid for both, you should do as the stmmac_interrupt does: > if (priv->plat->has_gmac || priv->plat->has_gmac4) ... > > The places where it was obvious that the author actually meant > if (has_gmac || has_gmac4) rather than if (has_gmac) has been updated. > > Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> > --- > drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 4 ++-- > drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 1 + > 2 files changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c > index d5a8122b6033..dd5b38e4cd1f 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c > @@ -263,7 +263,7 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev, > { > struct stmmac_priv *priv = netdev_priv(dev); > > - if (priv->plat->has_gmac) > + if (priv->plat->has_gmac || priv->plat->has_gmac4) > strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver)); > else > strlcpy(info->driver, MAC100_ETHTOOL_NAME, > @@ -448,7 +448,7 @@ static void stmmac_ethtool_gregs(struct net_device *dev, > > memset(reg_space, 0x0, REG_SPACE_SIZE); > > - if (!priv->plat->has_gmac) { > + if (!(priv->plat->has_gmac || priv->plat->has_gmac4)) { > /* MAC registers */ > for (i = 0; i < 12; i++) > reg_space[i] = readl(priv->ioaddr + (i * 4)); > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c > index 4d544c34c1f2..c8a59f396c6e 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c > @@ -291,6 +291,7 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac) > if (of_device_is_compatible(np, "snps,dwmac-4.00") || > of_device_is_compatible(np, "snps,dwmac-4.10a")) { > plat->has_gmac4 = 1; > + plat->has_gmac = 0; > plat->pmt = 1; > plat->tso_en = of_property_read_bool(np, "snps,tso"); > } > Thanks Niklas, Acked-by: <alexandre.torgue@st.com>
Regards Alex
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