diff mbox series

[v4,4/5] pinctrl: freescale: add pad wakeup config

Message ID 20221027130859.1444412-5-shenwei.wang@nxp.com
State New
Headers
Series gpio: add suspend/resume support for i.mx8x SoCs |

Commit Message

Shenwei Wang Oct. 27, 2022, 1:08 p.m. UTC 
  add the logic to configure the pad wakeup function via
the pin_config_set handler.

Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/pinctrl/freescale/pinctrl-scu.c | 30 +++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c
index 59b5f8a35111..ea261b6e7458 100644
--- a/drivers/pinctrl/freescale/pinctrl-scu.c
+++ b/drivers/pinctrl/freescale/pinctrl-scu.c
@@ -15,6 +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,
@@ -36,10 +41,18 @@  struct imx_sc_msg_resp_pad_get {
 	u32 val;
 } __packed;
 
+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);
@@ -81,6 +94,23 @@  int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
 	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
 	 */