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Commit 9fc6ade8 authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Archit Taneja
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drm/bridge/sii8620: enable MHL3 mode if possible 



Since all sub-protocols of MHL3 are already supported MHL3 mode can be
enabled. With this patch it is possible to use packed pixel modes and
clocks up to 300MHz - 1920x1080@60Hz and 4K modes.

Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarArchit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-25-git-send-email-a.hajda@samsung.com
parent a21e658b

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

+12 −11
Original line number Diff line number Diff line
@@ -1404,8 +1404,7 @@ static void sii8620_mhl_init(struct sii8620 *ctx) 
	);

	sii8620_disable_gen2_write_burst(ctx);



	/* currently MHL3 is not supported, so we force version to 0 */

	sii8620_mt_write_stat(ctx, MHL_DST_REG(VERSION), 0);

	sii8620_mt_write_stat(ctx, MHL_DST_REG(VERSION), SII8620_MHL_VERSION);

	sii8620_mt_write_stat(ctx, MHL_DST_REG(CONNECTED_RDY),

			      MHL_DST_CONN_DCAP_RDY | MHL_DST_CONN_XDEVCAPP_SUPP

			      | MHL_DST_CONN_POW_STAT);
@@ -1672,15 +1671,17 @@ static void sii8620_irq_g2wb(struct sii8620 *ctx) 
	sii8620_write(ctx, REG_MDT_INT_0, stat);

}



static void sii8620_status_changed_dcap(struct sii8620 *ctx)

static void sii8620_status_dcap_ready(struct sii8620 *ctx)

{

	if (ctx->stat[MHL_DST_CONNECTED_RDY] & MHL_DST_CONN_DCAP_RDY) {

		sii8620_set_mode(ctx, CM_MHL1);

	enum sii8620_mode mode;



	mode = ctx->stat[MHL_DST_VERSION] >= 0x30 ? CM_MHL3 : CM_MHL1;

	if (mode > ctx->mode)

		sii8620_set_mode(ctx, mode);

	sii8620_peer_specific_init(ctx);

	sii8620_write(ctx, REG_INTR9_MASK, BIT_INTR9_DEVCAP_DONE

		      | BIT_INTR9_EDID_DONE | BIT_INTR9_EDID_ERROR);

}

}



static void sii8620_status_changed_path(struct sii8620 *ctx)

{
@@ -1707,8 +1708,8 @@ static void sii8620_msc_mr_write_stat(struct sii8620 *ctx) 
	sii8620_update_array(ctx->stat, st, MHL_DST_SIZE);

	sii8620_update_array(ctx->xstat, xst, MHL_XDS_SIZE);



	if (st[MHL_DST_CONNECTED_RDY] & MHL_DST_CONN_DCAP_RDY)

		sii8620_status_changed_dcap(ctx);

	if (ctx->stat[MHL_DST_CONNECTED_RDY] & MHL_DST_CONN_DCAP_RDY)

		sii8620_status_dcap_ready(ctx);



	if (st[MHL_DST_LINK_MODE] & MHL_DST_LM_PATH_ENABLED)

		sii8620_status_changed_path(ctx);