staging: drm/imx: ipu-di: add comments explaining signal generator configuration (db5225d4) · Commits · 戴 / test

drivers/staging/imx-drm/ipu-v3/ipu-di.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -413,9 +413,11 @@ static void ipu_di_sync_config_noninterlaced(struct ipu_di *di,
		sig->v_end_width;
		struct di_sync_config cfg[] = {
		{
		/* 1: INT_HSYNC */
		.run_count = h_total - 1,
		.run_src = DI_SYNC_CLK,
		} , {
		/* PIN2: HSYNC */
		.run_count = h_total - 1,
		.run_src = DI_SYNC_CLK,
		.offset_count = div * sig->v_to_h_sync,
		@@ -424,23 +426,28 @@ static void ipu_di_sync_config_noninterlaced(struct ipu_di *di,
		.cnt_polarity_trigger_src = DI_SYNC_CLK,
		.cnt_down = sig->h_sync_width * 2,
		} , {
		/* PIN3: VSYNC */
		.run_count = v_total - 1,
		.run_src = DI_SYNC_INT_HSYNC,
		.cnt_polarity_gen_en = 1,
		.cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
		.cnt_down = sig->v_sync_width * 2,
		} , {
		/* 4: Line Active */
		.run_src = DI_SYNC_HSYNC,
		.offset_count = sig->v_sync_width + sig->v_start_width,
		.offset_src = DI_SYNC_HSYNC,
		.repeat_count = sig->height,
		.cnt_clr_src = DI_SYNC_VSYNC,
		} , {
		/* 5: DE, referenced by DC */
		.run_src = DI_SYNC_CLK,
		.offset_count = sig->h_sync_width + sig->h_start_width,
		.offset_src = DI_SYNC_CLK,
		.repeat_count = sig->width,
		.cnt_clr_src = 5,
		.cnt_clr_src = 5, /* Line Active */
		} , {
		/* unused */
		} , {
		/* unused */
		} , {