Commit 427c69c7 authored by Jani Nikula's avatar Jani Nikula
Browse files

drm/i915/dsi: debug log send packet sequence contents 



This might help debug issues better than just debug logging the function
name.

v2: Debug log type as hex (Ville)

Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251029084603.2254982-2-jani.nikula@intel.com


Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 23db1577

drivers/gpu/drm/i915/display/intel_dsi_vbt.c

+7 −3
Original line number Diff line number Diff line
@@ -107,8 +107,7 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, 
	u16 len;

	enum port port;

	ssize_t ret;



	drm_dbg_kms(display->drm, "\n");

	bool hs_mode;



	flags = *data++;

	type = *data++;
@@ -130,13 +129,18 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, 
		goto out;

	}



	if ((flags >> MIPI_TRANSFER_MODE_SHIFT) & 1)

	hs_mode = (flags >> MIPI_TRANSFER_MODE_SHIFT) & 1;

	if (hs_mode)

		dsi_device->mode_flags &= ~MIPI_DSI_MODE_LPM;

	else

		dsi_device->mode_flags |= MIPI_DSI_MODE_LPM;



	dsi_device->channel = (flags >> MIPI_VIRTUAL_CHANNEL_SHIFT) & 3;



	drm_dbg_kms(display->drm, "DSI packet: Port %c (seq %u), Flags 0x%02x, VC %u, %s, Type 0x%02x, Length %u, Data %*ph\n",

		    port_name(port), seq_port, flags, dsi_device->channel,

		    hs_mode ? "HS" : "LP", type, len, (int)len, data);



	switch (type) {

	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:

		ret = mipi_dsi_generic_write(dsi_device, NULL, 0);