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Commit 44f9a4b0 authored by Maciej Purski's avatar Maciej Purski Committed by Andrzej Hajda
Browse files

drm/bridge/sii8620: Fix link mode selection 



Current link mode values do not allow to enable packed pixel modes.

Select packed pixel clock mode, if needed, every time the link mode
register gets updated.

Signed-off-by: default avatarMaciej Purski <m.purski@samsung.com>
Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530204243-6370-4-git-send-email-m.purski@samsung.com
parent fdddc65a

drivers/gpu/drm/bridge/sil-sii8620.c

+20 −10
Original line number Diff line number Diff line
@@ -1165,8 +1165,14 @@ static void sii8620_start_video(struct sii8620 *ctx) 
	sii8620_set_format(ctx);



	if (!sii8620_is_mhl3(ctx)) {

		sii8620_mt_write_stat(ctx, MHL_DST_REG(LINK_MODE),

			MHL_DST_LM_CLK_MODE_NORMAL | MHL_DST_LM_PATH_ENABLED);

		u8 link_mode = MHL_DST_LM_PATH_ENABLED;



		if (ctx->use_packed_pixel)

			link_mode |= MHL_DST_LM_CLK_MODE_PACKED_PIXEL;

		else

			link_mode |= MHL_DST_LM_CLK_MODE_NORMAL;



		sii8620_mt_write_stat(ctx, MHL_DST_REG(LINK_MODE), link_mode);

		sii8620_set_auto_zone(ctx);

	} else {

		static const struct {
@@ -1677,14 +1683,18 @@ static void sii8620_status_dcap_ready(struct sii8620 *ctx) 


static void sii8620_status_changed_path(struct sii8620 *ctx)

{

	if (ctx->stat[MHL_DST_LINK_MODE] & MHL_DST_LM_PATH_ENABLED) {

		sii8620_mt_write_stat(ctx, MHL_DST_REG(LINK_MODE),

				      MHL_DST_LM_CLK_MODE_NORMAL

				      | MHL_DST_LM_PATH_ENABLED);

	} else {

	u8 link_mode;



	if (ctx->use_packed_pixel)

		link_mode = MHL_DST_LM_CLK_MODE_PACKED_PIXEL;

	else

		link_mode = MHL_DST_LM_CLK_MODE_NORMAL;



	if (ctx->stat[MHL_DST_LINK_MODE] & MHL_DST_LM_PATH_ENABLED)

		link_mode |= MHL_DST_LM_PATH_ENABLED;



	sii8620_mt_write_stat(ctx, MHL_DST_REG(LINK_MODE),

				      MHL_DST_LM_CLK_MODE_NORMAL);

	}

			      link_mode);

}



static void sii8620_msc_mr_write_stat(struct sii8620 *ctx)