All of lore.kernel.org
 help / color / mirror / Atom feed
From: <sean.wang@mediatek.com>
To: <john@phrozen.org>, <davem@davemloft.net>
Cc: <nbd@openwrt.org>, <netdev@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <keyhaede@gmail.com>,
	<objelf@gmail.com>, Sean Wang <sean.wang@mediatek.com>
Subject: [PATCH net-next 4/7] net: ethernet: mediatek: add controlling power domain the ethernet belongs to
Date: Wed, 14 Sep 2016 11:50:38 +0800	[thread overview]
Message-ID: <1473825041-21072-5-git-send-email-sean.wang@mediatek.com> (raw)
In-Reply-To: <1473825041-21072-1-git-send-email-sean.wang@mediatek.com>

From: Sean Wang <sean.wang@mediatek.com>

introduce power domain control which the digital circuit of
the ethernet belongs to inside the flow of hardware initialization
and deinitialization which helps the entire ethernet hardware block
could restart cleanly and completely as being back to the initial
state when the whole machine reboot.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 917a49c6..fd5d064 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -18,6 +18,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 #include <linux/clk.h>
+#include <linux/pm_runtime.h>
 #include <linux/if_vlan.h>
 #include <linux/reset.h>
 #include <linux/tcp.h>
@@ -1417,6 +1418,9 @@ static int __init mtk_hw_init(struct mtk_eth *eth)
 {
 	int i;
 
+	pm_runtime_enable(eth->dev);
+	pm_runtime_get_sync(eth->dev);
+
 	clk_prepare_enable(eth->clks[MTK_CLK_ETHIF]);
 	clk_prepare_enable(eth->clks[MTK_CLK_ESW]);
 	clk_prepare_enable(eth->clks[MTK_CLK_GP1]);
@@ -1484,6 +1488,9 @@ static int mtk_hw_deinit(struct mtk_eth *eth)
 	clk_disable_unprepare(eth->clks[MTK_CLK_ESW]);
 	clk_disable_unprepare(eth->clks[MTK_CLK_ETHIF]);
 
+	pm_runtime_put_sync(eth->dev);
+	pm_runtime_disable(eth->dev);
+
 	return 0;
 }
 
-- 
1.9.1

WARNING: multiple messages have this Message-ID (diff)
From: <sean.wang@mediatek.com>
To: john@phrozen.org, davem@davemloft.net
Cc: nbd@openwrt.org, netdev@vger.kernel.org,
	linux-mediatek@lists.infradead.org, keyhaede@gmail.com,
	objelf@gmail.com, Sean Wang <sean.wang@mediatek.com>
Subject: [PATCH net-next 4/7] net: ethernet: mediatek: add controlling power domain the ethernet belongs to
Date: Wed, 14 Sep 2016 11:50:38 +0800	[thread overview]
Message-ID: <1473825041-21072-5-git-send-email-sean.wang@mediatek.com> (raw)
In-Reply-To: <1473825041-21072-1-git-send-email-sean.wang@mediatek.com>

From: Sean Wang <sean.wang@mediatek.com>

introduce power domain control which the digital circuit of
the ethernet belongs to inside the flow of hardware initialization
and deinitialization which helps the entire ethernet hardware block
could restart cleanly and completely as being back to the initial
state when the whole machine reboot.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 917a49c6..fd5d064 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -18,6 +18,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 #include <linux/clk.h>
+#include <linux/pm_runtime.h>
 #include <linux/if_vlan.h>
 #include <linux/reset.h>
 #include <linux/tcp.h>
@@ -1417,6 +1418,9 @@ static int __init mtk_hw_init(struct mtk_eth *eth)
 {
 	int i;
 
+	pm_runtime_enable(eth->dev);
+	pm_runtime_get_sync(eth->dev);
+
 	clk_prepare_enable(eth->clks[MTK_CLK_ETHIF]);
 	clk_prepare_enable(eth->clks[MTK_CLK_ESW]);
 	clk_prepare_enable(eth->clks[MTK_CLK_GP1]);
@@ -1484,6 +1488,9 @@ static int mtk_hw_deinit(struct mtk_eth *eth)
 	clk_disable_unprepare(eth->clks[MTK_CLK_ESW]);
 	clk_disable_unprepare(eth->clks[MTK_CLK_ETHIF]);
 
+	pm_runtime_put_sync(eth->dev);
+	pm_runtime_disable(eth->dev);
+
 	return 0;
 }
 
-- 
1.9.1

  parent reply	other threads:[~2016-09-14  3:50 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-14  3:50 [PATCH net-next 0/7] add enhancement into the existing reset flow sean.wang
2016-09-14  3:50 ` sean.wang
2016-09-14  3:50 ` [PATCH net-next 1/7] net: ethernet: mediatek: refactoring mtk_hw_init to be reused sean.wang
2016-09-14  3:50   ` sean.wang
2016-09-14  3:50 ` [PATCH net-next 2/7] net: ethernet: mediatek: add mtk_hw_deinit call as the opposite to mtk_hw_init call sean.wang
2016-09-14  3:50   ` sean.wang
2016-09-14  3:50 ` [PATCH net-next 3/7] net: ethernet: mediatek: cleanup error path inside mtk_hw_init sean.wang
2016-09-14  3:50   ` sean.wang
2016-09-14  3:50 ` sean.wang [this message]
2016-09-14  3:50   ` [PATCH net-next 4/7] net: ethernet: mediatek: add controlling power domain the ethernet belongs to sean.wang
2016-09-14  3:50 ` [PATCH net-next 5/7] net: ethernet: mediatek: add the whole ethernet reset into the reset process sean.wang
2016-09-14  3:50   ` sean.wang
2016-09-14  3:50 ` [PATCH net-next 6/7] net: ethernet: mediatek: add more resets for internal ethernet circuit block sean.wang
2016-09-14  3:50   ` sean.wang
2016-09-14  3:50 ` [PATCH net-next 7/7] net: ethernet: mediatek: avoid race condition during the reset process sean.wang
2016-09-14  3:50   ` sean.wang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1473825041-21072-5-git-send-email-sean.wang@mediatek.com \
    --to=sean.wang@mediatek.com \
    --cc=davem@davemloft.net \
    --cc=john@phrozen.org \
    --cc=keyhaede@gmail.com \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=nbd@openwrt.org \
    --cc=netdev@vger.kernel.org \
    --cc=objelf@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.