diff options
Diffstat (limited to 'drivers/pinctrl/freescale/pinctrl-scu.c')
| -rw-r--r-- | drivers/pinctrl/freescale/pinctrl-scu.c | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c index 83e69c0f39e6..3b252d684d72 100644 --- a/drivers/pinctrl/freescale/pinctrl-scu.c +++ b/drivers/pinctrl/freescale/pinctrl-scu.c @@ -7,6 +7,7 @@ #include <linux/err.h> #include <linux/firmware/imx/sci.h> +#include <linux/module.h> #include <linux/of_address.h> #include <linux/pinctrl/pinctrl.h> #include <linux/platform_device.h> @@ -14,6 +15,11 @@ #include "../core.h" #include "pinctrl-imx.h" +#define IMX_SC_PAD_FUNC_GET_WAKEUP 9 +#define IMX_SC_PAD_FUNC_SET_WAKEUP 4 +#define IMX_SC_IRQ_GROUP_WAKE 3 /* Wakeup interrupts */ +#define IMX_SC_IRQ_PAD 2 /* Pad wakeup */ + enum pad_func_e { IMX_SC_PAD_FUNC_SET = 15, IMX_SC_PAD_FUNC_GET = 16, @@ -23,24 +29,33 @@ struct imx_sc_msg_req_pad_set { struct imx_sc_rpc_msg hdr; u32 val; u16 pad; -} __packed; +} __packed __aligned(4); struct imx_sc_msg_req_pad_get { struct imx_sc_rpc_msg hdr; u16 pad; -} __packed; +} __packed __aligned(4); struct imx_sc_msg_resp_pad_get { struct imx_sc_rpc_msg hdr; u32 val; } __packed; -struct imx_sc_ipc *pinctrl_ipc_handle; +struct imx_sc_msg_gpio_set_pad_wakeup { + struct imx_sc_rpc_msg hdr; + u16 pad; + u8 wakeup; +} __packed __aligned(4); + +static struct imx_sc_ipc *pinctrl_ipc_handle; int imx_pinctrl_sc_ipc_init(struct platform_device *pdev) { + imx_scu_irq_group_enable(IMX_SC_IRQ_GROUP_WAKE, + IMX_SC_IRQ_PAD, true); return imx_scu_get_handle(&pinctrl_ipc_handle); } +EXPORT_SYMBOL_GPL(imx_pinctrl_sc_ipc_init); int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id, unsigned long *config) @@ -66,6 +81,7 @@ int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id, return 0; } +EXPORT_SYMBOL_GPL(imx_pinconf_get_scu); int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id, unsigned long *configs, unsigned num_configs) @@ -74,14 +90,32 @@ int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id, struct imx_sc_msg_req_pad_set msg; struct imx_sc_rpc_msg *hdr = &msg.hdr; unsigned int mux = configs[0]; - unsigned int conf = configs[1]; + unsigned int conf; unsigned int val; int ret; + if (num_configs == 1) { + struct imx_sc_msg_gpio_set_pad_wakeup wmsg; + + hdr = &wmsg.hdr; + hdr->ver = IMX_SC_RPC_VERSION; + hdr->svc = IMX_SC_RPC_SVC_PAD; + hdr->func = IMX_SC_PAD_FUNC_SET_WAKEUP; + hdr->size = 2; + wmsg.pad = pin_id; + wmsg.wakeup = *configs; + ret = imx_scu_call_rpc(pinctrl_ipc_handle, &wmsg, true); + + dev_dbg(ipctl->dev, "wakeup pin_id: %d type: %ld\n", + pin_id, *configs); + return ret; + } + /* * Set mux and conf together in one IPC call */ WARN_ON(num_configs != 2); + conf = configs[1]; val = conf | BM_PAD_CTL_IFMUX_ENABLE | BM_PAD_CTL_GP_ENABLE; val |= mux << BP_PAD_CTL_IFMUX; @@ -101,6 +135,7 @@ int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id, return ret; } +EXPORT_SYMBOL_GPL(imx_pinconf_set_scu); void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl, unsigned int *pin_id, struct imx_pin *pin, @@ -119,3 +154,8 @@ void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl, dev_dbg(ipctl->dev, "%s: 0x%x 0x%08lx", info->pins[pin->pin].name, pin_scu->mux_mode, pin_scu->config); } +EXPORT_SYMBOL_GPL(imx_pinctrl_parse_pin_scu); + +MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>"); +MODULE_DESCRIPTION("NXP i.MX SCU common pinctrl driver"); +MODULE_LICENSE("GPL v2"); |