drm/i915/debugfs: remove i915_dpcd file (cd1c4d4a) · Commits · 戴 / test

drivers/gpu/drm/i915/i915_debugfs.c

+0 −64

Original line number	Diff line number	Diff line
		@@ -4329,65 +4329,6 @@ int i915_debugfs_register(struct drm_i915_private *dev_priv)
		minor->debugfs_root, minor);
		}

		struct dpcd_block {
		/* DPCD dump start address. */
		unsigned int offset;
		/* DPCD dump end address, inclusive. If unset, .size will be used. */
		unsigned int end;
		/* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */
		size_t size;
		/* Only valid for eDP. */
		bool edp;
		};

		static const struct dpcd_block i915_dpcd_debug[] = {
		{ .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE },
		{ .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS },
		{ .offset = DP_DOWNSTREAM_PORT_0, .size = 16 },
		{ .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET },
		{ .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 },
		{ .offset = DP_SET_POWER },
		{ .offset = DP_EDP_DPCD_REV },
		{ .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 },
		{ .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB },
		{ .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET },
		};

		static int i915_dpcd_show(struct seq_file m, void data)
		{
		struct drm_connector *connector = m->private;
		struct intel_dp *intel_dp =
		intel_attached_dp(to_intel_connector(connector));
		u8 buf[16];
		ssize_t err;
		int i;

		if (connector->status != connector_status_connected)
		return -ENODEV;

		for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) {
		const struct dpcd_block *b = &i915_dpcd_debug[i];
		size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1);

		if (b->edp &&
		connector->connector_type != DRM_MODE_CONNECTOR_eDP)
		continue;

		/* low tech for now */
		if (WARN_ON(size > sizeof(buf)))
		continue;

		err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size);
		if (err < 0)
		seq_printf(m, "%04x: ERROR %d\n", b->offset, (int)err);
		else
		seq_printf(m, "%04x: %*ph\n", b->offset, (int)err, buf);
		}

		return 0;
		}
		DEFINE_SHOW_ATTRIBUTE(i915_dpcd);

		static int i915_panel_show(struct seq_file m, void data)
		{
		struct drm_connector *connector = m->private;
		@@ -4552,11 +4493,6 @@ int i915_debugfs_connector_add(struct drm_connector *connector)
		if (!root)
		return -ENODEV;

		if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort \|\|
		connector->connector_type == DRM_MODE_CONNECTOR_eDP)
		debugfs_create_file("i915_dpcd", S_IRUGO, root,
		connector, &i915_dpcd_fops);

		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
		debugfs_create_file("i915_panel_timings", S_IRUGO, root,
		connector, &i915_panel_fops);

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