From: Hans de Goede Date: Wed, 20 Sep 2023 19:56:13 +0000 (+0200) Subject: drm/i915/dsi: Add some debug logging to mipi_exec_i2c (v2) X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a6028afef98a6e3f059a014452914eb01035d530;p=linux.git drm/i915/dsi: Add some debug logging to mipi_exec_i2c (v2) Add some debug logging to mipi_exec_i2c, to make debugging various issues seen with it easier. Changes in v2: - Drop unnecessary __func__ drm_dbg_kms() argument Signed-off-by: Hans de Goede Acked-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20230920195613.304091-5-hdegoede@redhat.com --- diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c index e56ec3f2d84ae..24b2cbcfc1eff 100644 --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c @@ -565,6 +565,9 @@ 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, "bus %d client-addr 0x%02x reg 0x%02x data %*ph\n", + 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);