usb: mtu3: use FORCE/RG_IDDIG to implement manual DRD switch
In order to keep manual DRD switch independent on IDDIG interrupt,
make use of FORCE/RG_IDDIG instead of IDDIG EINT interrupt to
implement manual DRD switch function.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
index fb89920..1e473b0 100644
--- a/drivers/usb/mtu3/mtu3_plat.c
+++ b/drivers/usb/mtu3/mtu3_plat.c
@@ -21,7 +21,6 @@
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include "mtu3.h"
@@ -212,33 +211,6 @@ static void ssusb_ip_sw_reset(struct ssusb_mtk *ssusb)
mtu3_clrbits(ssusb->ippc_base, U3D_SSUSB_IP_PW_CTRL0, SSUSB_IP_SW_RST);
}
-static int get_iddig_pinctrl(struct ssusb_mtk *ssusb)
-{
- struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
-
- otg_sx->id_pinctrl = devm_pinctrl_get(ssusb->dev);
- if (IS_ERR(otg_sx->id_pinctrl)) {
- dev_err(ssusb->dev, "Cannot find id pinctrl!\n");
- return PTR_ERR(otg_sx->id_pinctrl);
- }
-
- otg_sx->id_float =
- pinctrl_lookup_state(otg_sx->id_pinctrl, "id_float");
- if (IS_ERR(otg_sx->id_float)) {
- dev_err(ssusb->dev, "Cannot find pinctrl id_float!\n");
- return PTR_ERR(otg_sx->id_float);
- }
-
- otg_sx->id_ground =
- pinctrl_lookup_state(otg_sx->id_pinctrl, "id_ground");
- if (IS_ERR(otg_sx->id_ground)) {
- dev_err(ssusb->dev, "Cannot find pinctrl id_ground!\n");
- return PTR_ERR(otg_sx->id_ground);
- }
-
- return 0;
-}
-
/* ignore the error if the clock does not exist */
static struct clk *get_optional_clk(struct device *dev, const char *id)
{
@@ -349,15 +321,11 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
dev_err(ssusb->dev, "couldn't get extcon device\n");
return -EPROBE_DEFER;
}
- if (otg_sx->manual_drd_enabled) {
- ret = get_iddig_pinctrl(ssusb);
- if (ret)
- return ret;
- }
}
- dev_info(dev, "dr_mode: %d, is_u3_dr: %d, u3p_dis_msk:%x\n",
- ssusb->dr_mode, otg_sx->is_u3_drd, ssusb->u3p_dis_msk);
+ dev_info(dev, "dr_mode: %d, is_u3_dr: %d, u3p_dis_msk: %x, drd: %s\n",
+ ssusb->dr_mode, otg_sx->is_u3_drd, ssusb->u3p_dis_msk,
+ otg_sx->manual_drd_enabled ? "manual" : "auto");
return 0;
}