[PATCH v1] serial: qcom-geni: Avoid probing debug console UART without console support

Aniket Randive
2026-04-13T07:25:10Z

When CONFIG_SERIAL_QCOM_GENI_CONSOLE is disabled, the driver still
advertises the debug UART compatible strings ("qcom,geni-debug-uart"
and "qcom,sa8255p-geni-debug-uart") in its of_match table. This lets the
driver match and probe console UART DT nodes even though console
support is not built. As a result, the console port is never registered
with the UART core and uart_add_one_port() fails with -EINVAL.

Fix this by only including the debug UART compatible entries in the
match table when CONFIG_SERIAL_QCOM_GENI_CONSOLE is enabled, preventing
the driver from probing console UART nodes when console support is
absent.

Signed-off-by: Aniket Randive <aniket.randive@oss.qualcomm.com>
---
drivers/tty/serial/qcom_geni_serial.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 9854bb2406e3..b756e0c07c16 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -2039,6 +2039,7 @@ static const struct dev_pm_ops qcom_geni_serial_pm_ops = {
};

static const struct of_device_id qcom_geni_serial_match_table[] = {
+#if IS_ENABLED(CONFIG_SERIAL_QCOM_GENI_CONSOLE)
{
.compatible = "qcom,geni-debug-uart",
.data = &qcom_geni_console_data,
@@ -2047,6 +2048,7 @@ static const struct of_device_id qcom_geni_serial_match_table[] = {
.compatible = "qcom,sa8255p-geni-debug-uart",
.data = &sa8255p_qcom_geni_console_data,
},
+#endif
{
.compatible = "qcom,geni-uart",
.data = &qcom_geni_uart_data,
--
2.34.1