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Merge "i2c: i2c-msm-geni: Reset i2c GPIOs using FORCE_DEFAULT"

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qctecmdr 2023-03-26 06:23:12 -07:00 committed by Gerrit - the friendly Code Review server
commit bfb3801113
1 changed files with 15 additions and 4 deletions
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19
drivers/i2c/busses/i2c-msm-geni.c
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@ -410,10 +410,21 @@ static int do_pending_cancel(struct geni_i2c_dev *gi2c)
geni_ios = geni_read_reg(gi2c->base, SE_GENI_IOS);
if ((geni_ios & 0x3) != 0x3) {
I2C_LOG_DBG(gi2c->ipcl, true, gi2c->dev,
"%s: Can't do pending cancel, IOS bad state: 0x%x\n",
__func__, geni_ios);
return -EINVAL;
/* Try to restore IOS with FORCE_DEFAULT */
GENI_SE_ERR(gi2c->ipcl, true, gi2c->dev,
"%s: IOS:0x%x, bad state\n", __func__, geni_ios);
geni_write_reg(FORCE_DEFAULT,
gi2c->base, GENI_FORCE_DEFAULT_REG);
geni_ios = geni_read_reg(gi2c->base, SE_GENI_IOS);
if ((geni_ios & 0x3) != 0x3) {
GENI_SE_ERR(gi2c->ipcl, true, gi2c->dev,
"%s: IOS:0x%x, Fix from Slave side\n",
__func__, geni_ios);
return -EINVAL;
}
GENI_SE_ERR(gi2c->ipcl, true, gi2c->dev,
"%s: IOS:0x%x restored properly\n", __func__, geni_ios);
}
if (gi2c->se_mode == GSI_ONLY) {