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Wed, 29 Oct 2014 04:52:46 -0700 (PDT) From: Chris Zhong To: heiko@sntech.de, dianders@chromium.org Subject: [PATCH v6 1/7] pinctrl: rockchip: add suspend/resume functions Date: Wed, 29 Oct 2014 19:51:59 +0800 Message-Id: <1414583525-17395-2-git-send-email-zyw@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1414583525-17395-1-git-send-email-zyw@rock-chips.com> References: <1414583525-17395-1-git-send-email-zyw@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141029_045309_688312_ED0F89A8 X-CRM114-Status: GOOD ( 10.71 ) X-Spam-Score: -0.5 (/) Cc: Mark Rutland , Russell King , Pawel Moll , Ian Campbell , Linus Walleij , khilman@kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , linux-gpio@vger.kernel.org, Chris Zhong , mturquette@linaro.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP support suspend/resume of pinctrl, it allows handling sleep mode for hogged pins in pinctrl Signed-off-by: Chris Zhong Tested-by: Doug Anderson Reviewed-by: Doug Anderson Tested-by: Heiko Stuebner Reviewed-by: Heiko Stuebner --- Changes in v6: None Changes in v5: - reset-author - use "__maybe_unused" annotation 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 | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index 016f457..172ad1d 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -1770,6 +1770,23 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data( return ctrl; } +static int __maybe_unused rockchip_pinctrl_suspend(struct device *dev) +{ + struct rockchip_pinctrl *info = dev_get_drvdata(dev); + + return pinctrl_force_sleep(info->pctl_dev); +} + +static int __maybe_unused rockchip_pinctrl_resume(struct device *dev) +{ + struct rockchip_pinctrl *info = dev_get_drvdata(dev); + + return pinctrl_force_default(info->pctl_dev); +} + +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 +2000,7 @@ 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, }, };