Add some debug logging to mipi_exec_i2c, to make debugging various
issues seen with it easier.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 0da91849efde..215dbfc0af0f 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -464,6 +464,10 @@ static const u8 *mipi_exec_i2c(struct intel_dsi *intel_dsi, const u8 *data)
u8 payload_size = *(data + 6);
u8 *payload_data;
+ drm_dbg_kms(&i915->drm, "%s bus %d client-addr 0x%02x reg 0x%02x data %*ph\n",
+ __func__, vbt_i2c_bus_num, slave_addr, reg_offset,
+ payload_size, data + 7);
+
if (intel_dsi->i2c_bus_num < 0) {
intel_dsi->i2c_bus_num = vbt_i2c_bus_num;
i2c_acpi_find_adapter(intel_dsi, slave_addr);
--
2.35.1
