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From: Chris Zhong <zyw@rock-chips.com>
To: Heiko Stuebner <heiko@sntech.de>
Cc: Mike Turquette <mturquette@linaro.org>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	dianders@chromium.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, Kumar Gala <galak@codeaurora.org>,
	Russell King <linux@arm.linux.org.uk>,
	linux-rockchip@lists.infradead.org,
	Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	Chris Zhong <zyw@rock-chips.com>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH v4 1/6] pinctrl: rockchip: add suspend/resume functions
Date: Tue, 21 Oct 2014 16:19:17 -0700	[thread overview]
Message-ID: <1413933557-25684-1-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1413933461-25602-1-git-send-email-zyw@rock-chips.com>

From: Chris <zyw@rock-chips.com>

support suspend/resume of pinctrl, it allows handling sleep mode
for hogged pins in pinctrl

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

---

Changes in v4:
- use SIMPLE_DEV_PM_OPS for suspend/resume struct

Changes in v3: None
Changes in v2: None

 drivers/pinctrl/pinctrl-rockchip.c |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 016f457..c4a988d 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1770,6 +1770,25 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
 	return ctrl;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_pinctrl_suspend(struct device *dev)
+{
+	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+	return pinctrl_force_sleep(info->pctl_dev);
+}
+
+static int rockchip_pinctrl_resume(struct device *dev)
+{
+	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+	return pinctrl_force_default(info->pctl_dev);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
+			 rockchip_pinctrl_resume);
+
 static int rockchip_pinctrl_probe(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info;
@@ -1983,6 +2002,7 @@ static struct platform_driver rockchip_pinctrl_driver = {
 	.driver = {
 		.name	= "rockchip-pinctrl",
 		.owner	= THIS_MODULE,
+		.pm = &rockchip_pinctrl_dev_pm_ops,
 		.of_match_table = rockchip_pinctrl_dt_match,
 	},
 };
-- 
1.7.9.5


WARNING: multiple messages have this Message-ID (diff)
From: zyw@rock-chips.com (Chris Zhong)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/6] pinctrl: rockchip: add suspend/resume functions
Date: Tue, 21 Oct 2014 16:19:17 -0700	[thread overview]
Message-ID: <1413933557-25684-1-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1413933461-25602-1-git-send-email-zyw@rock-chips.com>

From: Chris <zyw@rock-chips.com>

support suspend/resume of pinctrl, it allows handling sleep mode
for hogged pins in pinctrl

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

---

Changes in v4:
- use SIMPLE_DEV_PM_OPS for suspend/resume struct

Changes in v3: None
Changes in v2: None

 drivers/pinctrl/pinctrl-rockchip.c |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 016f457..c4a988d 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1770,6 +1770,25 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
 	return ctrl;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int rockchip_pinctrl_suspend(struct device *dev)
+{
+	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+	return pinctrl_force_sleep(info->pctl_dev);
+}
+
+static int rockchip_pinctrl_resume(struct device *dev)
+{
+	struct rockchip_pinctrl *info = dev_get_drvdata(dev);
+
+	return pinctrl_force_default(info->pctl_dev);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
+			 rockchip_pinctrl_resume);
+
 static int rockchip_pinctrl_probe(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info;
@@ -1983,6 +2002,7 @@ static struct platform_driver rockchip_pinctrl_driver = {
 	.driver = {
 		.name	= "rockchip-pinctrl",
 		.owner	= THIS_MODULE,
+		.pm = &rockchip_pinctrl_dev_pm_ops,
 		.of_match_table = rockchip_pinctrl_dt_match,
 	},
 };
-- 
1.7.9.5

  reply	other threads:[~2014-10-21 23:19 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-21 23:17 [PATCH v4 0/6] this is the 1st version of suspend. RK3288 can shut down the cpu, gpu and Chris Zhong
2014-10-21 23:17 ` Chris Zhong
2014-10-21 23:19 ` Chris Zhong [this message]
2014-10-21 23:19   ` [PATCH v4 1/6] pinctrl: rockchip: add suspend/resume functions Chris Zhong
2014-10-22  4:19   ` Doug Anderson
2014-10-22  4:19     ` Doug Anderson
2014-10-22  4:19     ` Doug Anderson
2014-10-28 16:23   ` Linus Walleij
2014-10-28 16:23     ` Linus Walleij
2014-10-28 16:23     ` Linus Walleij
2014-10-21 23:19 ` [PATCH v4 2/6] pinctrl: rockchip: save and restore gpio6_c6 pinmux in suspend/resume Chris Zhong
2014-10-21 23:19   ` Chris Zhong
2014-10-21 23:19   ` Chris Zhong
2014-10-22  4:33   ` Doug Anderson
2014-10-22  4:33     ` Doug Anderson
2014-10-22  4:33     ` Doug Anderson
2014-10-21 23:25 ` [PATCH v4 3/6] clk: rockchip: RK3288: add suspend and resume Chris Zhong
2014-10-21 23:25   ` Chris Zhong
2014-10-21 23:25   ` Chris Zhong
2014-10-22  4:58   ` Doug Anderson
2014-10-22  4:58     ` Doug Anderson
2014-10-22  4:58     ` Doug Anderson
2014-10-21 23:25 ` [PATCH v4 4/6] ARM: rockchip: add suspend and resume for RK3288 Chris Zhong
2014-10-21 23:25   ` Chris Zhong
2014-10-22  5:01   ` Doug Anderson
2014-10-22  5:01     ` Doug Anderson
2014-10-22  5:01     ` Doug Anderson
2014-10-24  4:44   ` Doug Anderson
2014-10-24  4:44     ` Doug Anderson
2014-10-24  4:44     ` Doug Anderson
2014-10-21 23:26 ` [PATCH v4 5/6] ARM: rockchip: Add pmu-sram binding Chris Zhong
2014-10-21 23:26   ` Chris Zhong
2014-10-21 23:26   ` Chris Zhong
2014-10-23  0:09   ` Doug Anderson
2014-10-23  0:09     ` Doug Anderson
2014-10-23  0:09     ` Doug Anderson
2014-10-27 17:46   ` Doug Anderson
2014-10-27 17:46     ` Doug Anderson
2014-10-27 17:46     ` Doug Anderson
2014-10-21 23:26 ` [PATCH v4 6/6] ARM: dts: add RK3288 suspend support Chris Zhong
2014-10-21 23:26   ` Chris Zhong
2014-10-21 23:26   ` Chris Zhong
2014-10-23  0:04   ` Doug Anderson
2014-10-23  0:04     ` Doug Anderson
2014-10-23  0:04     ` Doug Anderson

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