[{"id":1757485,"web_url":"http://patchwork.ozlabs.org/comment/1757485/","msgid":"<20170825144832.3w6izhri5vstbndp@flea.lan>","list_archive_url":null,"date":"2017-08-25T14:48:32","subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","submitter":{"id":12916,"url":"http://patchwork.ozlabs.org/api/people/12916/","name":"Maxime Ripard","email":"maxime.ripard@free-electrons.com"},"content":"On Fri, Aug 25, 2017 at 04:38:05PM +0200, Corentin Labbe wrote:\n> The current dwmac_sun8i module cannot be rmmod/modprobe due to that\n> the reset controller was not released when removed.\n> \n> This patch remove ambiguity, by using of_reset_control_get_exclusive and\n> add the missing reset_control_put().\n> \n> Signed-off-by: Corentin Labbe \n> ---\n> drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 3 ++-\n> 1 file changed, 2 insertions(+), 1 deletion(-)\n> \n> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> index fffd6d5fc907..675a09629d85 100644\n> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> @@ -782,6 +782,7 @@ static int sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac)\n> \n> \tclk_disable_unprepare(gmac->ephy_clk);\n> \treset_control_assert(gmac->rst_ephy);\n> +\treset_control_put(gmac->rst_ephy);\n> \treturn 0;\n> }\n> \n> @@ -942,7 +943,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)\n> \t\t\treturn -EINVAL;\n> \t\t}\n> \n> -\t\tgmac->rst_ephy = of_reset_control_get(plat_dat->phy_node, NULL);\n> +\t\tgmac->rst_ephy = of_reset_control_get_exclusive(plat_dat->phy_node, NULL);\n\nWhy not just use devm_reset_control_get?\n\nMaxime","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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micalg=pgp-sha1;\n\tprotocol=\"application/pgp-signature\"; boundary=\"7wgxoaddpuvmahyd\"","Content-Disposition":"inline","In-Reply-To":"<20170825143805.21733-1-clabbe.montjoie@gmail.com>","User-Agent":"NeoMutt/20170714 (1.8.3)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}},{"id":1757529,"web_url":"http://patchwork.ozlabs.org/comment/1757529/","msgid":"<20170825151733.GB9475@Red>","list_archive_url":null,"date":"2017-08-25T15:17:33","subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","submitter":{"id":64152,"url":"http://patchwork.ozlabs.org/api/people/64152/","name":"Corentin Labbe","email":"clabbe.montjoie@gmail.com"},"content":"On Fri, Aug 25, 2017 at 04:48:32PM +0200, Maxime Ripard wrote:\n> On Fri, Aug 25, 2017 at 04:38:05PM +0200, Corentin Labbe wrote:\n> > The current dwmac_sun8i module cannot be rmmod/modprobe due to that\n> > the reset controller was not released when removed.\n> > \n> > This patch remove ambiguity, by using of_reset_control_get_exclusive and\n> > add the missing reset_control_put().\n> > \n> > Signed-off-by: Corentin Labbe \n> > ---\n> > drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 3 ++-\n> > 1 file changed, 2 insertions(+), 1 deletion(-)\n> > \n> > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > index fffd6d5fc907..675a09629d85 100644\n> > --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > @@ -782,6 +782,7 @@ static int sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac)\n> > \n> > \tclk_disable_unprepare(gmac->ephy_clk);\n> > \treset_control_assert(gmac->rst_ephy);\n> > +\treset_control_put(gmac->rst_ephy);\n> > \treturn 0;\n> > }\n> > \n> > @@ -942,7 +943,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)\n> > \t\t\treturn -EINVAL;\n> > \t\t}\n> > \n> > -\t\tgmac->rst_ephy = of_reset_control_get(plat_dat->phy_node, NULL);\n> > +\t\tgmac->rst_ephy = of_reset_control_get_exclusive(plat_dat->phy_node, NULL);\n> \n> Why not just use devm_reset_control_get?\n> \n\nBecause there no devm_ functions with of_\n\nRegards","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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\n\tFri, 25 Aug 2017 08:17:37 -0700 (PDT)","Date":"Fri, 25 Aug 2017 17:17:33 +0200","From":"Corentin Labbe ","To":"Maxime Ripard ","Cc":"peppe.cavallaro@st.com, alexandre.torgue@st.com, wens@csie.org,\n\tnetdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,\n\tlinux-kernel@vger.kernel.org","Subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","Message-ID":"<20170825151733.GB9475@Red>","References":"<20170825143805.21733-1-clabbe.montjoie@gmail.com>\n\t<20170825144832.3w6izhri5vstbndp@flea.lan>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20170825144832.3w6izhri5vstbndp@flea.lan>","User-Agent":"Mutt/1.7.2 (2016-11-26)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}},{"id":1757637,"web_url":"http://patchwork.ozlabs.org/comment/1757637/","msgid":"<20170825171233.4xoihzakca3mqscd@flea.lan>","list_archive_url":null,"date":"2017-08-25T17:12:33","subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","submitter":{"id":12916,"url":"http://patchwork.ozlabs.org/api/people/12916/","name":"Maxime Ripard","email":"maxime.ripard@free-electrons.com"},"content":"On Fri, Aug 25, 2017 at 05:17:33PM +0200, Corentin Labbe wrote:\n> On Fri, Aug 25, 2017 at 04:48:32PM +0200, Maxime Ripard wrote:\n> > On Fri, Aug 25, 2017 at 04:38:05PM +0200, Corentin Labbe wrote:\n> > > The current dwmac_sun8i module cannot be rmmod/modprobe due to that\n> > > the reset controller was not released when removed.\n> > > \n> > > This patch remove ambiguity, by using of_reset_control_get_exclusive and\n> > > add the missing reset_control_put().\n> > > \n> > > Signed-off-by: Corentin Labbe \n> > > ---\n> > > drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 3 ++-\n> > > 1 file changed, 2 insertions(+), 1 deletion(-)\n> > > \n> > > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > index fffd6d5fc907..675a09629d85 100644\n> > > --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > @@ -782,6 +782,7 @@ static int sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac)\n> > > \n> > > \tclk_disable_unprepare(gmac->ephy_clk);\n> > > \treset_control_assert(gmac->rst_ephy);\n> > > +\treset_control_put(gmac->rst_ephy);\n> > > \treturn 0;\n> > > }\n> > > \n> > > @@ -942,7 +943,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)\n> > > \t\t\treturn -EINVAL;\n> > > \t\t}\n> > > \n> > > -\t\tgmac->rst_ephy = of_reset_control_get(plat_dat->phy_node, NULL);\n> > > +\t\tgmac->rst_ephy = of_reset_control_get_exclusive(plat_dat->phy_node, NULL);\n> > \n> > Why not just use devm_reset_control_get?\n> > \n> \n> Because there no devm_ functions with of_\n\ndevm_reset_control_get uses of_reset_control_get internally.\n\nMaxime","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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micalg=pgp-sha1;\n\tprotocol=\"application/pgp-signature\"; boundary=\"d5x6nwykedhdh2iw\"","Content-Disposition":"inline","In-Reply-To":"<20170825151733.GB9475@Red>","User-Agent":"NeoMutt/20170714 (1.8.3)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}},{"id":1760029,"web_url":"http://patchwork.ozlabs.org/comment/1760029/","msgid":"<20170830102136.GA21940@Red>","list_archive_url":null,"date":"2017-08-30T10:21:36","subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","submitter":{"id":64152,"url":"http://patchwork.ozlabs.org/api/people/64152/","name":"Corentin Labbe","email":"clabbe.montjoie@gmail.com"},"content":"On Fri, Aug 25, 2017 at 07:12:33PM +0200, Maxime Ripard wrote:\n> On Fri, Aug 25, 2017 at 05:17:33PM +0200, Corentin Labbe wrote:\n> > On Fri, Aug 25, 2017 at 04:48:32PM +0200, Maxime Ripard wrote:\n> > > On Fri, Aug 25, 2017 at 04:38:05PM +0200, Corentin Labbe wrote:\n> > > > The current dwmac_sun8i module cannot be rmmod/modprobe due to that\n> > > > the reset controller was not released when removed.\n> > > > \n> > > > This patch remove ambiguity, by using of_reset_control_get_exclusive and\n> > > > add the missing reset_control_put().\n> > > > \n> > > > Signed-off-by: Corentin Labbe \n> > > > ---\n> > > > drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 3 ++-\n> > > > 1 file changed, 2 insertions(+), 1 deletion(-)\n> > > > \n> > > > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > > index fffd6d5fc907..675a09629d85 100644\n> > > > --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c\n> > > > @@ -782,6 +782,7 @@ static int sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac)\n> > > > \n> > > > \tclk_disable_unprepare(gmac->ephy_clk);\n> > > > \treset_control_assert(gmac->rst_ephy);\n> > > > +\treset_control_put(gmac->rst_ephy);\n> > > > \treturn 0;\n> > > > }\n> > > > \n> > > > @@ -942,7 +943,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)\n> > > > \t\t\treturn -EINVAL;\n> > > > \t\t}\n> > > > \n> > > > -\t\tgmac->rst_ephy = of_reset_control_get(plat_dat->phy_node, NULL);\n> > > > +\t\tgmac->rst_ephy = of_reset_control_get_exclusive(plat_dat->phy_node, NULL);\n> > > \n> > > Why not just use devm_reset_control_get?\n> > > \n> > \n> > Because there no devm_ functions with of_\n> \n> devm_reset_control_get uses of_reset_control_get internally.\n\nHello\n\nYou are right.\nBut since the ephy reset is in a child node, devm_ does not find it.\n\nRegards","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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\n\tWed, 30 Aug 2017 03:22:26 -0700 (PDT)","Date":"Wed, 30 Aug 2017 12:21:36 +0200","From":"Corentin Labbe ","To":"Maxime Ripard ","Cc":"peppe.cavallaro@st.com, alexandre.torgue@st.com, wens@csie.org,\n\tnetdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,\n\tlinux-kernel@vger.kernel.org","Subject":"Re: [PATCH] net: stmmac: dwmac-sun8i: Use reset exclusive","Message-ID":"<20170830102136.GA21940@Red>","References":"<20170825143805.21733-1-clabbe.montjoie@gmail.com>\n\t<20170825144832.3w6izhri5vstbndp@flea.lan>\n\t<20170825151733.GB9475@Red>\n\t<20170825171233.4xoihzakca3mqscd@flea.lan>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20170825171233.4xoihzakca3mqscd@flea.lan>","User-Agent":"Mutt/1.7.2 (2016-11-26)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}}]