From mboxrd@z Thu Jan 1 00:00:00 1970 From: Abel Vesa Subject: [PATCH v2] pinctrl: pinctrl-imx8mq: Add suspend/resume ops Date: Mon, 8 Apr 2019 10:42:34 +0000 Message-ID: <1554720120-6617-1-git-send-email-abel.vesa@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Aisheng Dong , Fabio Estevam , Shawn Guo , Stefan Agner , Linus Walleij , Sascha Hauer Cc: dl-linux-imx , "linux-gpio@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Linux Kernel Mailing List , Abel Vesa , Robin Gong List-Id: linux-gpio@vger.kernel.org To support pinctl hog restore after LPSR resume back, add the generic suspend/resume in pinctrl-imx along with the generic pm opsto be used by platform specific drivers. Then make use of the newly added ops in i.MX8MQ platform specific driver. Signed-off-by: Robin Gong Signed-off-by: Abel Vesa --- Changes since v1: - Replaced the imx8mq specific ops with generic ones. drivers/pinctrl/freescale/pinctrl-imx.c | 25 +++++++++++++++++++++++++ drivers/pinctrl/freescale/pinctrl-imx.h | 4 ++++ drivers/pinctrl/freescale/pinctrl-imx8mq.c | 1 + 3 files changed, 30 insertions(+) diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/free= scale/pinctrl-imx.c index 188001b..ee120ee 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.c +++ b/drivers/pinctrl/freescale/pinctrl-imx.c @@ -887,3 +887,28 @@ int imx_pinctrl_probe(struct platform_device *pdev, =20 return ret; } + +int imx_pinctrl_suspend(struct device *dev) +{ + struct imx_pinctrl *ipctl =3D dev_get_drvdata(dev); + + if (!ipctl) + return -EINVAL; + + return pinctrl_force_sleep(ipctl->pctl); +} + +int imx_pinctrl_resume(struct device *dev) +{ + struct imx_pinctrl *ipctl =3D dev_get_drvdata(dev); + + if (!ipctl) + return -EINVAL; + + return pinctrl_force_default(ipctl->pctl); +} + +const struct dev_pm_ops imx_pinctrl_pm_ops =3D { + SET_LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend, + imx_pinctrl_resume) +}; diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/free= scale/pinctrl-imx.h index 98a4889..ae78314 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx.h +++ b/drivers/pinctrl/freescale/pinctrl-imx.h @@ -17,6 +17,7 @@ struct platform_device; =20 extern struct pinmux_ops imx_pmx_ops; +extern const struct dev_pm_ops imx_pinctrl_pm_ops; =20 /** * struct imx_pin_mmio - MMIO pin configurations @@ -136,6 +137,9 @@ struct imx_pinctrl { int imx_pinctrl_probe(struct platform_device *pdev, const struct imx_pinctrl_soc_info *info); =20 +int imx_pinctrl_suspend(struct device *dev); +int imx_pinctrl_resume(struct device *dev); + #ifdef CONFIG_PINCTRL_IMX_SCU #define BM_PAD_CTL_GP_ENABLE BIT(30) #define BM_PAD_CTL_IFMUX_ENABLE BIT(31) diff --git a/drivers/pinctrl/freescale/pinctrl-imx8mq.c b/drivers/pinctrl/f= reescale/pinctrl-imx8mq.c index 8d39af5..50aa1c0 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx8mq.c +++ b/drivers/pinctrl/freescale/pinctrl-imx8mq.c @@ -339,6 +339,7 @@ static struct platform_driver imx8mq_pinctrl_driver =3D= { .driver =3D { .name =3D "imx8mq-pinctrl", .of_match_table =3D of_match_ptr(imx8mq_pinctrl_of_match), + .pm =3D &imx_pinctrl_pm_ops, .suppress_bind_attrs =3D true, }, .probe =3D imx8mq_pinctrl_probe, --=20 2.7.4