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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Kees Cook , "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC net-next v2 6/6] ptp: ocp: Add Time Card V9 I2C peripheral topology Date: Mon, 3 Aug 2026 13:50:11 -0700 Message-ID: <20260803205011.1249-7-ahmadexp@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260803205011.1249-1-ahmadexp@gmail.com> References: <20260803205011.1249-1-ahmadexp@gmail.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Time Card V9 places a BME280 at 0x76, a BNO055 at 0x29, and an IS32FL3207 at 0x37 on PCA9546 channel 1. Describe GNSS1 and GNSS2 as RGB LEDs on outputs 0 through 5 and SMA1 through SMA4 on outputs 6 through 17. Select this profile only for the exact EEPROM ID "TIMECARD-V9". Earlier Time Card revisions expose the same I2C device population with different LED routing, so probing cannot distinguish them safely. Leave erased, malformed, and unknown board IDs unconfigured. Signed-off-by: Ahmad Byagowi --- drivers/ptp/ptp_ocp.c | 68 ++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 67 insertions(+), 1 deletion(-) diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 70ba47096..c8c28d792 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -353,7 +353,7 @@ struct ptp_ocp_serial_port { #define OCP_I2C_MUX_CHANNELS 4 #define OCP_I2C_MAX_SENSOR_COUNT 5 -#define OCP_I2C_MAX_LED_COUNT 5 +#define OCP_I2C_MAX_LED_COUNT 6 #define OCP_I2C_MAX_LED_COMPONENT_COUNT (3 * OCP_I2C_MAX_LED_COUNT) #define OCP_I2C_MUX_NAME_LEN 32 #define OCP_I2C_RETRY_MAX 10 @@ -617,9 +617,61 @@ static const struct ptp_ocp_led ptp_ocp_r4006_leds[] = { }, }; +static const struct ptp_ocp_i2c_device ptp_ocp_v9_sensors[] = { + { "pressure@76", "bosch,bme280", "bme280", 1, 0x76 }, + { "imu@29", "bosch,bno055", "bno055", 1, 0x29 }, +}; + +static const struct ptp_ocp_led ptp_ocp_v9_leds[] = { + { + .node_name = "multi-led@0", + .function = LED_FUNCTION_STATUS, + .function_enumerator = 1, + .has_function_enumerator = true, + .channel = { 0, 1, 2 }, + }, + { + .node_name = "multi-led@3", + .function = LED_FUNCTION_STATUS, + .function_enumerator = 2, + .has_function_enumerator = true, + .channel = { 3, 4, 5 }, + }, + { + .node_name = "multi-led@6", + .function = LED_FUNCTION_INDICATOR, + .function_enumerator = 1, + .has_function_enumerator = true, + .channel = { 6, 7, 8 }, + }, + { + .node_name = "multi-led@9", + .function = LED_FUNCTION_INDICATOR, + .function_enumerator = 2, + .has_function_enumerator = true, + .channel = { 9, 10, 11 }, + }, + { + .node_name = "multi-led@c", + .function = LED_FUNCTION_INDICATOR, + .function_enumerator = 3, + .has_function_enumerator = true, + .channel = { 12, 13, 14 }, + }, + { + .node_name = "multi-led@f", + .function = LED_FUNCTION_INDICATOR, + .function_enumerator = 4, + .has_function_enumerator = true, + .channel = { 15, 16, 17 }, + }, +}; + static_assert(ARRAY_SIZE(ptp_ocp_r4006_sensors) <= OCP_I2C_MAX_SENSOR_COUNT); static_assert(ARRAY_SIZE(ptp_ocp_r4006_leds) <= OCP_I2C_MAX_LED_COUNT); +static_assert(ARRAY_SIZE(ptp_ocp_v9_sensors) <= OCP_I2C_MAX_SENSOR_COUNT); +static_assert(ARRAY_SIZE(ptp_ocp_v9_leds) <= OCP_I2C_MAX_LED_COUNT); static const struct ptp_ocp_i2c_profile ptp_ocp_r4006_profile = { .name = "r4006", @@ -631,6 +683,16 @@ static const struct ptp_ocp_i2c_profile ptp_ocp_r4006_profile = { .led_address = 0x34, }; +static const struct ptp_ocp_i2c_profile ptp_ocp_v9_profile = { + .name = "v9", + .sensors = ptp_ocp_v9_sensors, + .sensor_count = ARRAY_SIZE(ptp_ocp_v9_sensors), + .leds = ptp_ocp_v9_leds, + .led_count = ARRAY_SIZE(ptp_ocp_v9_leds), + .led_node_name = "led-controller@37", + .led_address = 0x37, +}; + #define bp_assign_entry(bp, res, val) ({ \ uintptr_t addr = (uintptr_t)(bp) + (res)->bp_offset; \ *(typeof(val) *)addr = val; \ @@ -2259,6 +2321,10 @@ ptp_ocp_i2c_select_profile(struct ptp_ocp *bp) if (!strncmp(bp->board_id, "R4006", 5)) return &ptp_ocp_r4006_profile; + /* Older revisions share V9's I2C devices but not its LED wiring. */ + if (!strcmp(bp->board_id, "TIMECARD-V9")) + return &ptp_ocp_v9_profile; + return NULL; } -- 2.50.1 (Apple Git-155)