On Mon, Sep 18, 2023 at 03:45:04PM +0300, Heikki Krogerus wrote:
> On Sun, Sep 17, 2023 at 11:26:29AM -0400, Abdel Alkuor wrote:
> > From: Abdel Alkuor <abdelalkuor@xxxxxxxxxx>
> >
> > When an EEPROM is present, tps25750 loads the binary configuration from
> > EEPROM. Hence, all we need to do is wait for the device to switch to APP
> > mode
> >
> > Signed-off-by: Abdel Alkuor <abdelalkuor@xxxxxxxxxx>
> > ---
> > drivers/usb/typec/tipd/core.c | 13 +++++++++++++
> > drivers/usb/typec/tipd/tps6598x.h | 3 +++
> > 2 files changed, 16 insertions(+)
> >
> > diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
> > index fea139c72d6d..b3d4b2b5bf5f 100644
> > --- a/drivers/usb/typec/tipd/core.c
> > +++ b/drivers/usb/typec/tipd/core.c
> > @@ -37,6 +37,7 @@
> > #define TPS_REG_STATUS 0x1a
> > #define TPS_REG_SYSTEM_CONF 0x28
> > #define TPS_REG_CTRL_CONF 0x29
> > +#define TPS_REG_BOOT_STATUS 0x2D
> > #define TPS_REG_POWER_STATUS 0x3f
> > #define TPS_REG_RX_IDENTITY_SOP 0x48
> > #define TPS_REG_DATA_STATUS 0x5f
> > @@ -897,6 +898,17 @@ static int tps25750_apply_patch(struct tps6598x *tps)
> > int ret;
> > unsigned long timeout;
> > u8 mode;
> > + u64 status = 0;
> > +
> > + ret = tps6598x_block_read(tps, TPS_REG_BOOT_STATUS, &status, 5);
> > + if (ret)
> > + return ret;
> > + /*
> > + * Nothing to be done if the configuration
> > + * is being loaded from EERPOM
> > + */
> > + if (status & TPS25750_BOOT_STATUS_I2C_EEPROM_PRESENT)
> > + goto wait_for_app;
> >
> > ret = tps25750_start_patch_burst_mode(tps);
> > if (ret) {
> > @@ -908,6 +920,7 @@ static int tps25750_apply_patch(struct tps6598x *tps)
> > if (ret)
> > return ret;
> >
> > +wait_for_app:
> > timeout = jiffies + msecs_to_jiffies(1000);
> >
> > do {
> > diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h
> > index 527857549d69..5e942c089c27 100644
> > --- a/drivers/usb/typec/tipd/tps6598x.h
> > +++ b/drivers/usb/typec/tipd/tps6598x.h
> > @@ -199,4 +199,7 @@
> > #define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_A BIT(2)
> > #define TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_B (BIT(2) | BIT(1))
> >
> > +/* BOOT STATUS REG*/
> > +#define TPS25750_BOOT_STATUS_I2C_EEPROM_PRESENT BIT(3)
>
> That's not TPS25750 specific bit, so please rename that to
> TPS_BOOT_STATUS_I2C_EEPROM_PRESENT
>
I will fix it in v6.
> thanks,
>
> --
> heikki
Thanks,
Abdel
