On Sun, Sep 17, 2023 at 11:26:27AM -0400, Abdel Alkuor wrote: > TPS25750 has a patch mode indicating the device requires > a configuration to get the device into operational mode > > Signed-off-by: Abdel Alkuor <alkuor@xxxxxxxxx> > --- > drivers/usb/typec/tipd/core.c | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) > > diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c > index a8aee4e1aeba..6d2151325fbb 100644 > --- a/drivers/usb/typec/tipd/core.c > +++ b/drivers/usb/typec/tipd/core.c > @@ -68,6 +68,7 @@ enum { > TPS_MODE_BOOT, > TPS_MODE_BIST, > TPS_MODE_DISC, > + TPS_MODE_PTCH, > }; > > static const char *const modes[] = { > @@ -75,6 +76,7 @@ static const char *const modes[] = { > [TPS_MODE_BOOT] = "BOOT", > [TPS_MODE_BIST] = "BIST", > [TPS_MODE_DISC] = "DISC", > + [TPS_MODE_PTCH] = "PTCH", > }; > > /* Unrecognized commands will be replaced with "!CMD" */ > @@ -576,7 +578,7 @@ static void tps6598x_poll_work(struct work_struct *work) > &tps->wq_poll, msecs_to_jiffies(POLL_INTERVAL)); > } > > -static int tps6598x_check_mode(struct tps6598x *tps) > +static int tps6598x_check_mode(struct tps6598x *tps, u8 *curr_mode) > { > char mode[5] = { }; > int ret; > @@ -585,8 +587,11 @@ static int tps6598x_check_mode(struct tps6598x *tps) > if (ret) > return ret; > > - switch (match_string(modes, ARRAY_SIZE(modes), mode)) { > + *curr_mode = match_string(modes, ARRAY_SIZE(modes), mode); > + > + switch (*curr_mode) { > case TPS_MODE_APP: > + case TPS_MODE_PTCH: This check is OK, but it seems that you are not using that curr_mode for anything yet, so don't change the paramaters of this function in this patch. I would also just return the mode. Then this function would be used like this: ret = tps6598x_check_mode(...) if (ret < 0) return ret; Now mode = ret. > return 0; > case TPS_MODE_BOOT: > dev_warn(tps->dev, "dead-battery condition\n"); > @@ -715,6 +720,7 @@ static int tps6598x_probe(struct i2c_client *client) > u32 vid; > int ret; > u64 mask1; > + u8 mode; > > tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); > if (!tps) > @@ -759,7 +765,7 @@ static int tps6598x_probe(struct i2c_client *client) > > tps->irq_handler = irq_handler; > /* Make sure the controller has application firmware running */ > - ret = tps6598x_check_mode(tps); > + ret = tps6598x_check_mode(tps, &mode); Actually, if you need to know the mode in here later, then I'm not sure tps6592x_check_mode() is useful after that. This is the only place it's called. Just read and check the mode in here directly at that point. thanks, -- heikki