drm/sti: add debugfs entries for TVOUT encoders (b514bee7) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/gpu/drm/sti/sti_tvout.c

+157 −0

Original line number	Diff line number	Diff line
		@@ -462,6 +462,157 @@ static void tvout_hda_start(struct sti_tvout *tvout, bool main_path)
		tvout_write(tvout, 0, TVO_HD_DAC_CFG_OFF);
		}

		#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
		readl(tvout->regs + reg))

		static void tvout_dbg_vip(struct seq_file *s, int val)
		{
		int r, g, b, tmp, mask;
		char *const reorder[] = {"Y_G", "Cb_B", "Cr_R"};
		char *const clipping[] = {"No", "EAV/SAV", "Limited range RGB/Y",
		"Limited range Cb/Cr", "decided by register"};
		char *const round[] = {"8-bit", "10-bit", "12-bit"};
		char *const input_sel[] = {"Main (color matrix enabled)",
		"Main (color matrix by-passed)",
		"", "", "", "", "", "",
		"Aux (color matrix enabled)",
		"Aux (color matrix by-passed)",
		"", "", "", "", "", "Force value"};

		seq_puts(s, "\t");
		mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_R_SHIFT;
		r = (val & mask) >> TVO_VIP_REORDER_R_SHIFT;
		mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_G_SHIFT;
		g = (val & mask) >> TVO_VIP_REORDER_G_SHIFT;
		mask = TVO_VIP_REORDER_MASK << TVO_VIP_REORDER_B_SHIFT;
		b = (val & mask) >> TVO_VIP_REORDER_B_SHIFT;
		seq_printf(s, "%-24s %s->%s %s->%s %s->%s\n", "Reorder:",
		reorder[r], reorder[TVO_VIP_REORDER_CR_R_SEL],
		reorder[g], reorder[TVO_VIP_REORDER_Y_G_SEL],
		reorder[b], reorder[TVO_VIP_REORDER_CB_B_SEL]);
		seq_puts(s, "\t\t\t\t\t");
		mask = TVO_VIP_CLIP_MASK << TVO_VIP_CLIP_SHIFT;
		tmp = (val & mask) >> TVO_VIP_CLIP_SHIFT;
		seq_printf(s, "%-24s %s\n", "Clipping:", clipping[tmp]);
		seq_puts(s, "\t\t\t\t\t");
		mask = TVO_VIP_RND_MASK << TVO_VIP_RND_SHIFT;
		tmp = (val & mask) >> TVO_VIP_RND_SHIFT;
		seq_printf(s, "%-24s input data rounded to %s per component\n",
		"Round:", round[tmp]);
		seq_puts(s, "\t\t\t\t\t");
		tmp = (val & TVO_VIP_SEL_INPUT_MASK);
		seq_printf(s, "%-24s %s", "Input selection:", input_sel[tmp]);
		}

		static void tvout_dbg_hd_dac_cfg(struct seq_file *s, int val)
		{
		seq_printf(s, "\t%-24s %s", "HD DAC:",
		val & 1 ? "disabled" : "enabled");
		}

		static int tvout_dbg_show(struct seq_file s, void data)
		{
		struct drm_info_node *node = s->private;
		struct sti_tvout tvout = (struct sti_tvout )node->info_ent->data;
		struct drm_device *dev = node->minor->dev;
		struct drm_crtc *crtc;
		int ret;

		ret = mutex_lock_interruptible(&dev->struct_mutex);
		if (ret)
		return ret;

		seq_printf(s, "TVOUT: (vaddr = 0x%p)", tvout->regs);

		seq_puts(s, "\n\n HDMI encoder: ");
		crtc = tvout->hdmi->crtc;
		if (crtc) {
		seq_printf(s, "connected to %s path",
		sti_crtc_is_main(crtc) ? "main" : "aux");
		DBGFS_DUMP(TVO_HDMI_SYNC_SEL);
		DBGFS_DUMP(TVO_VIP_HDMI);
		tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDMI));
		} else {
		seq_puts(s, "disabled");
		}

		seq_puts(s, "\n\n DVO encoder: ");
		crtc = tvout->dvo->crtc;
		if (crtc) {
		seq_printf(s, "connected to %s path",
		sti_crtc_is_main(crtc) ? "main" : "aux");
		DBGFS_DUMP(TVO_DVO_SYNC_SEL);
		DBGFS_DUMP(TVO_DVO_CONFIG);
		DBGFS_DUMP(TVO_VIP_DVO);
		tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_DVO));
		} else {
		seq_puts(s, "disabled");
		}

		seq_puts(s, "\n\n HDA encoder: ");
		crtc = tvout->hda->crtc;
		if (crtc) {
		seq_printf(s, "connected to %s path",
		sti_crtc_is_main(crtc) ? "main" : "aux");
		DBGFS_DUMP(TVO_HD_SYNC_SEL);
		DBGFS_DUMP(TVO_HD_DAC_CFG_OFF);
		tvout_dbg_hd_dac_cfg(s,
		readl(tvout->regs + TVO_HD_DAC_CFG_OFF));
		DBGFS_DUMP(TVO_VIP_HDF);
		tvout_dbg_vip(s, readl(tvout->regs + TVO_VIP_HDF));
		} else {
		seq_puts(s, "disabled");
		}

		seq_puts(s, "\n\n main path configuration");
		DBGFS_DUMP(TVO_CSC_MAIN_M0);
		DBGFS_DUMP(TVO_CSC_MAIN_M1);
		DBGFS_DUMP(TVO_CSC_MAIN_M2);
		DBGFS_DUMP(TVO_CSC_MAIN_M3);
		DBGFS_DUMP(TVO_CSC_MAIN_M4);
		DBGFS_DUMP(TVO_CSC_MAIN_M5);
		DBGFS_DUMP(TVO_CSC_MAIN_M6);
		DBGFS_DUMP(TVO_CSC_MAIN_M7);
		DBGFS_DUMP(TVO_MAIN_IN_VID_FORMAT);

		seq_puts(s, "\n\n auxiliary path configuration");
		DBGFS_DUMP(TVO_CSC_AUX_M0);
		DBGFS_DUMP(TVO_CSC_AUX_M2);
		DBGFS_DUMP(TVO_CSC_AUX_M3);
		DBGFS_DUMP(TVO_CSC_AUX_M4);
		DBGFS_DUMP(TVO_CSC_AUX_M5);
		DBGFS_DUMP(TVO_CSC_AUX_M6);
		DBGFS_DUMP(TVO_CSC_AUX_M7);
		DBGFS_DUMP(TVO_AUX_IN_VID_FORMAT);
		seq_puts(s, "\n");

		mutex_unlock(&dev->struct_mutex);
		return 0;
		}

		static struct drm_info_list tvout_debugfs_files[] = {
		{ "tvout", tvout_dbg_show, 0, NULL },
		};

		static void tvout_debugfs_exit(struct sti_tvout tvout, struct drm_minor minor)
		{
		drm_debugfs_remove_files(tvout_debugfs_files,
		ARRAY_SIZE(tvout_debugfs_files),
		minor);
		}

		static int tvout_debugfs_init(struct sti_tvout tvout, struct drm_minor minor)
		{
		unsigned int i;

		for (i = 0; i < ARRAY_SIZE(tvout_debugfs_files); i++)
		tvout_debugfs_files[i].data = tvout;

		return drm_debugfs_create_files(tvout_debugfs_files,
		ARRAY_SIZE(tvout_debugfs_files),
		minor->debugfs_root, minor);
		}

		static void sti_tvout_encoder_dpms(struct drm_encoder *encoder, int mode)
		{
		}
		@@ -668,6 +819,9 @@ static int sti_tvout_bind(struct device dev, struct device master, void *data)

		sti_tvout_create_encoders(drm_dev, tvout);

		if (tvout_debugfs_init(tvout, drm_dev->primary))
		DRM_ERROR("TVOUT debugfs setup failed\n");

		return 0;
		}

		@@ -675,8 +829,11 @@ static void sti_tvout_unbind(struct device dev, struct device master,
		void *data)
		{
		struct sti_tvout *tvout = dev_get_drvdata(dev);
		struct drm_device *drm_dev = data;

		sti_tvout_destroy_encoders(tvout);

		tvout_debugfs_exit(tvout, drm_dev->primary);
		}

		static const struct component_ops sti_tvout_ops = {