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Commit 97d51db9 authored by Linyu Yuan's avatar Linyu Yuan
Browse files

usb: misc: nb7vpq904m: fix suspend/resume issue 



when suspend happen with empty OTG cable,
then insert USB 3 thumb drive,
after resume, thumb drive work in USB 2 mode.

currently in suspend function only disable redriver,
but no operation in resume function.

fix it by enable redriver during resume.

Change-Id: I57535dd24317cce77e40eb8ca30a2203af6776b0
Signed-off-by: default avatarLinyu Yuan <linyyuan@codeaurora.org>
parent c0a8ba67

drivers/usb/misc/ssusb-redriver-nb7vpq904m.c

+11 −2
Original line number Diff line number Diff line
@@ -1022,8 +1022,8 @@ static int __maybe_unused redriver_i2c_suspend(struct device *dev) 
	    redriver->op_mode == OP_MODE_DEFAULT)

		return 0;



	redriver->op_mode = OP_MODE_NONE;

	ssusb_redriver_gen_dev_set(redriver);

	redriver_i2c_reg_set(redriver, GEN_DEV_SET_REG,

				redriver->gen_dev_val & ~CHIP_EN);



	return 0;

}
@@ -1036,6 +1036,15 @@ static int __maybe_unused redriver_i2c_resume(struct device *dev) 
	dev_dbg(redriver->dev, "%s: SS USB redriver resume.\n",

			__func__);



	/* no suspend happen in following mode */

	if (redriver->op_mode == OP_MODE_DP ||

	    redriver->op_mode == OP_MODE_NONE ||

	    redriver->op_mode == OP_MODE_DEFAULT)

		return 0;



	redriver_i2c_reg_set(redriver, GEN_DEV_SET_REG,

				redriver->gen_dev_val);



	return 0;

}