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pinctrl: freescale: add pad wakeup config 

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>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20221027130859.1444412-5-shenwei.wang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Shenwei Wang 2022-10-27 08:08:58 -05:00 committed by Linus Walleij
parent cdb6f424e9
commit 7c3ccedaf7
1 changed files with 30 additions and 0 deletions
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30
drivers/pinctrl/freescale/pinctrl-scu.c
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@ -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
*/