Hi,
On 25-Apr-25 12:43, Dongcheng Yan wrote:
Typically HDMI to MIPI CSI-2 bridges have a pin to signal image data is being received. On the host side this is wired to a GPIO for polling or interrupts. This includes the Lontium HDMI to MIPI CSI-2 bridges lt6911uxe and lt6911uxc.
The GPIO "hpd" is used already by other HDMI to CSI-2 bridges, use it here as well.
Signed-off-by: Dongcheng Yan dongcheng.yan@intel.com
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede hdegoede@redhat.com
Regards,
Hans
drivers/platform/x86/intel/int3472/common.h | 1 + drivers/platform/x86/intel/int3472/discrete.c | 6 ++++++ 2 files changed, 7 insertions(+)
diff --git a/drivers/platform/x86/intel/int3472/common.h b/drivers/platform/x86/intel/int3472/common.h index 51b818e62a25..4593d567caf4 100644 --- a/drivers/platform/x86/intel/int3472/common.h +++ b/drivers/platform/x86/intel/int3472/common.h @@ -23,6 +23,7 @@ #define INT3472_GPIO_TYPE_CLK_ENABLE 0x0c #define INT3472_GPIO_TYPE_PRIVACY_LED 0x0d #define INT3472_GPIO_TYPE_HANDSHAKE 0x12 +#define INT3472_GPIO_TYPE_HOTPLUG_DETECT 0x13 #define INT3472_PDEV_MAX_NAME_LEN 23 #define INT3472_MAX_SENSOR_GPIOS 3 diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 394975f55d64..efa3bc7af193 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -191,6 +191,10 @@ static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3 *con_id = "privacy-led"; *gpio_flags = GPIO_ACTIVE_HIGH; break;
- case INT3472_GPIO_TYPE_HOTPLUG_DETECT:
*con_id = "hpd";*gpio_flags = GPIO_ACTIVE_HIGH;break;@@ -221,6 +225,7 @@ static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3
- 0x0b Power enable
- 0x0c Clock enable
- 0x0d Privacy LED
- 0x13 Hotplug detect
- There are some known platform specific quirks where that does not quite
- hold up; for example where a pin with type 0x01 (Power down) is mapped to
@@ -290,6 +295,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, switch (type) { case INT3472_GPIO_TYPE_RESET: case INT3472_GPIO_TYPE_POWERDOWN:
- case INT3472_GPIO_TYPE_HOTPLUG_DETECT: ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, con_id, gpio_flags); if (ret) err_msg = "Failed to map GPIO pin to sensor\n";
base-commit: 4d1e8c8f11c611db5828e4bae7292bc295eea8ef