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Groups > linux.kernel > #1615020 > unrolled thread

[PATCH v3 02/20] net: stmmac: add optional setup function

Started byCorentin Labbe <clabbe.montjoie@gmail.com>
First post2017-04-03 11:30 +0200
Last post2017-04-07 15:00 +0200
Articles 3 — 2 participants

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  [PATCH v3 02/20] net: stmmac: add optional setup function Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-04-03 11:30 +0200
    Re: [PATCH v3 02/20] net: stmmac: add optional setup function Giuseppe CAVALLARO <peppe.cavallaro@st.com> - 2017-04-03 14:40 +0200
      Re: [PATCH v3 02/20] net: stmmac: add optional setup function Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-04-07 15:00 +0200

#1615020 — [PATCH v3 02/20] net: stmmac: add optional setup function

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-04-03 11:30 +0200
Subject[PATCH v3 02/20] net: stmmac: add optional setup function
Message-ID<ts6tc-4ZD-27@gated-at.bofh.it>
Instead of adding more ifthen logic for adding a new mac_device_info
setup function, it is easier to add a function pointer to the function
needed.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
 include/linux/stmmac.h                            | 3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 43361f3..3beca41 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3508,7 +3508,9 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	struct mac_device_info *mac;
 
 	/* Identify the MAC HW device */
-	if (priv->plat->has_gmac) {
+	if (priv->plat->setup) {
+		mac = priv->plat->setup(priv);
+	} else if (priv->plat->has_gmac) {
 		priv->dev->priv_flags |= IFF_UNICAST_FLT;
 		mac = dwmac1000_setup(priv->ioaddr,
 				      priv->plat->multicast_filter_bins,
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 3921cb9..dadd74b 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -144,6 +144,8 @@ struct stmmac_txq_cfg {
 	u32 prio;
 };
 
+struct stmmac_priv;
+
 struct plat_stmmacenet_data {
 	int bus_id;
 	int phy_addr;
@@ -177,6 +179,7 @@ struct plat_stmmacenet_data {
 	void (*fix_mac_speed)(void *priv, unsigned int speed);
 	int (*init)(struct platform_device *pdev, void *priv);
 	void (*exit)(struct platform_device *pdev, void *priv);
+	struct mac_device_info *(*setup)(struct stmmac_priv *priv);
 	void *bsp_priv;
 	struct clk *stmmac_clk;
 	struct clk *pclk;
-- 
2.10.2

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#1615170

FromGiuseppe CAVALLARO <peppe.cavallaro@st.com>
Date2017-04-03 14:40 +0200
Message-ID<ts9r4-6Ro-15@gated-at.bofh.it>
In reply to#1615020
Hello Corentin

On 4/3/2017 11:14 AM, Corentin Labbe wrote:
> Instead of adding more ifthen logic for adding a new mac_device_info
> setup function, it is easier to add a function pointer to the function
> needed.
>
> Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> ---
>   drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
>   include/linux/stmmac.h                            | 3 +++
>   2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> index 43361f3..3beca41 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> @@ -3508,7 +3508,9 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
>   	struct mac_device_info *mac;
>   
>   	/* Identify the MAC HW device */
> -	if (priv->plat->has_gmac) {
> +	if (priv->plat->setup) {
> +		mac = priv->plat->setup(priv);
> +	} else if (priv->plat->has_gmac) {
>   		priv->dev->priv_flags |= IFF_UNICAST_FLT;
>   		mac = dwmac1000_setup(priv->ioaddr,
>   				      priv->plat->multicast_filter_bins,
> diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
> index 3921cb9..dadd74b 100644
> --- a/include/linux/stmmac.h
> +++ b/include/linux/stmmac.h
> @@ -144,6 +144,8 @@ struct stmmac_txq_cfg {
>   	u32 prio;
>   };
>   
> +struct stmmac_priv;
> +
>   struct plat_stmmacenet_data {
>   	int bus_id;
>   	int phy_addr;
> @@ -177,6 +179,7 @@ struct plat_stmmacenet_data {
>   	void (*fix_mac_speed)(void *priv, unsigned int speed);
>   	int (*init)(struct platform_device *pdev, void *priv);
>   	void (*exit)(struct platform_device *pdev, void *priv);
> +	struct mac_device_info *(*setup)(struct stmmac_priv *priv);

In that case  I prefer to have void *priv as done for the other callbacks.
I mean, keep the priv struct inside the driver part.

peppe

>   	void *bsp_priv;
>   	struct clk *stmmac_clk;
>   	struct clk *pclk;

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#1618764

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-04-07 15:00 +0200
Message-ID<ttBEC-7cJ-23@gated-at.bofh.it>
In reply to#1615170
On Mon, Apr 03, 2017 at 02:32:33PM +0200, Giuseppe CAVALLARO wrote:
> Hello Corentin
> 
> On 4/3/2017 11:14 AM, Corentin Labbe wrote:
> > Instead of adding more ifthen logic for adding a new mac_device_info
> > setup function, it is easier to add a function pointer to the function
> > needed.
> >
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> > ---
> >   drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
> >   include/linux/stmmac.h                            | 3 +++
> >   2 files changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > index 43361f3..3beca41 100644
> > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> > @@ -3508,7 +3508,9 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
> >   	struct mac_device_info *mac;
> >   
> >   	/* Identify the MAC HW device */
> > -	if (priv->plat->has_gmac) {
> > +	if (priv->plat->setup) {
> > +		mac = priv->plat->setup(priv);
> > +	} else if (priv->plat->has_gmac) {
> >   		priv->dev->priv_flags |= IFF_UNICAST_FLT;
> >   		mac = dwmac1000_setup(priv->ioaddr,
> >   				      priv->plat->multicast_filter_bins,
> > diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
> > index 3921cb9..dadd74b 100644
> > --- a/include/linux/stmmac.h
> > +++ b/include/linux/stmmac.h
> > @@ -144,6 +144,8 @@ struct stmmac_txq_cfg {
> >   	u32 prio;
> >   };
> >   
> > +struct stmmac_priv;
> > +
> >   struct plat_stmmacenet_data {
> >   	int bus_id;
> >   	int phy_addr;
> > @@ -177,6 +179,7 @@ struct plat_stmmacenet_data {
> >   	void (*fix_mac_speed)(void *priv, unsigned int speed);
> >   	int (*init)(struct platform_device *pdev, void *priv);
> >   	void (*exit)(struct platform_device *pdev, void *priv);
> > +	struct mac_device_info *(*setup)(struct stmmac_priv *priv);
> 
> In that case  I prefer to have void *priv as done for the other callbacks.
> I mean, keep the priv struct inside the driver part.
> 


Agree, I will change it

Thanks
Regards

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