From: Abdel Alkuor <alkuor@gmail.com>
To: heikki.krogerus@linux.intel.com,
krzysztof.kozlowski+dt@linaro.org, bryan.odonoghue@linaro.org
Cc: gregkh@linuxfoundation.org, robh+dt@kernel.org,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
conor+dt@kernel.org, linux-kernel@vger.kernel.org,
abdelalkuor@geotab.com
Subject: [PATCH v5 05/15] USB: typec: Check for EEPROM present
Date: Sun, 17 Sep 2023 11:26:29 -0400 [thread overview]
Message-ID: <20230917152639.21443-6-alkuor@gmail.com> (raw)
In-Reply-To: <20230917152639.21443-1-alkuor@gmail.com>
From: Abdel Alkuor <abdelalkuor@geotab.com>
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@geotab.com>
---
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)
+
#endif /* __TPS6598X_H__ */
--
2.34.1
next prev parent reply other threads:[~2023-09-17 15:32 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-17 15:26 [PATCH v5 00/15] Add TPS25750 USB type-C PD controller support Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 01/15] dt-bindings: usb: tps6598x: Add tps25750 Abdel Alkuor
2023-09-17 17:30 ` Krzysztof Kozlowski
2023-09-17 19:30 ` Abdel Alkuo
2023-09-17 15:26 ` [PATCH v5 02/15] USB: typec: Add cmd timeout and response delay Abdel Alkuor
2023-09-18 10:44 ` Heikki Krogerus
2023-09-20 14:29 ` Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 03/15] USB: typec: Add patch mode to tps6598x Abdel Alkuor
2023-09-18 11:07 ` Heikki Krogerus
2023-09-20 14:42 ` Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 04/15] USB: typec: Load TPS25750 patch bundle Abdel Alkuor
2023-09-17 17:04 ` kernel test robot
2023-09-17 17:24 ` kernel test robot
2023-09-18 11:31 ` Heikki Krogerus
2023-09-20 14:46 ` Abdel Alkuor
2023-09-17 15:26 ` Abdel Alkuor [this message]
2023-09-18 12:45 ` [PATCH v5 05/15] USB: typec: Check for EEPROM present Heikki Krogerus
2023-09-20 14:47 ` Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 06/15] USB: typec: Clear dead battery flag Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 07/15] USB: typec: Apply patch again after power resume Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 08/15] USB: typec: Add interrupt support for TPS25750 Abdel Alkuor
2023-09-18 12:46 ` Heikki Krogerus
2023-09-20 14:50 ` Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 09/15] USB: typec: Refactor tps6598x port registration Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 10/15] USB: typec: Add port registration for tps25750 Abdel Alkuor
2023-09-18 12:58 ` Heikki Krogerus
2023-09-20 14:53 ` Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 11/15] USB: typec: Enable sleep mode " Abdel Alkuor
2023-09-17 17:32 ` Krzysztof Kozlowski
2023-09-17 15:26 ` [PATCH v5 12/15] USB: typec: Add trace for tps25750 irq Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 13/15] USB: typec: Add power status trace for tps25750 Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 14/15] USB: typec: Add " Abdel Alkuor
2023-09-17 15:26 ` [PATCH v5 15/15] USB: typec: Do not check VID " Abdel Alkuor
2023-09-18 13:29 ` Heikki Krogerus
2023-09-20 15:10 ` Abdel Alkuor
2023-09-18 13:57 ` [PATCH v5 00/15] Add TPS25750 USB type-C PD controller support Heikki Krogerus
2023-09-20 15:21 ` Abdel Alkuor
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