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Commit 6cc78aa9 authored by Tomi Valkeinen's avatar Tomi Valkeinen
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OMAPDSS: DSI: disable DDR_CLK_ALWAYS_ON when entering ULPS 



ULPS cannot be entered if the DDR clk is enabled. Thus disable the DDR
clk before entering ULPS.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 3b98409e

drivers/video/omap2/dss/dsi.c

+4 −2
Original line number Diff line number Diff line
@@ -3544,9 +3544,11 @@ static int dsi_enter_ulps(struct platform_device *dsidev) 
	if (dsi->ulps_enabled)

		return 0;



	/* DDR_CLK_ALWAYS_ON */

	if (REG_GET(dsidev, DSI_CLK_CTRL, 13, 13)) {

		DSSERR("DDR_CLK_ALWAYS_ON enabled when entering ULPS\n");

		return -EIO;

		dsi_if_enable(dsidev, 0);

		REG_FLD_MOD(dsidev, DSI_CLK_CTRL, 0, 13, 13);

		dsi_if_enable(dsidev, 1);

	}



	dsi_sync_vc(dsidev, 0);