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Commit 99d754bb authored by Patrik Jakobsson's avatar Patrik Jakobsson
Browse files

drm/gma500/mrst: Replace WMs and chickenbits with values from EMGD 



For the minnowboard to work the values found in EMGD are required.
This might break Oaktrail but without hardware to test with I cannot
really tell (and do not really care).

Signed-off-by: default avatarPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
parent fb8e34d5

drivers/gpu/drm/gma500/oaktrail_crtc.c

+6 −7
Original line number Diff line number Diff line
@@ -332,16 +332,15 @@ static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode) 
		break;

	}



	/*Set FIFO Watermarks*/

	REG_WRITE(DSPARB, 0x3FFF);

	REG_WRITE(DSPFW1, 0x3F88080A);

	REG_WRITE(DSPFW2, 0x0b060808);

	/* Set FIFO Watermarks (values taken from EMGD) */

	REG_WRITE(DSPARB, 0x3f80);

	REG_WRITE(DSPFW1, 0x3f8f0404);

	REG_WRITE(DSPFW2, 0x04040f04);

	REG_WRITE(DSPFW3, 0x0);

	REG_WRITE(DSPFW4, 0x08030404);

	REG_WRITE(DSPFW4, 0x04040404);

	REG_WRITE(DSPFW5, 0x04040404);

	REG_WRITE(DSPFW6, 0x78);

	REG_WRITE(0x70400, REG_READ(0x70400) | 0x4000);

	/* Must write Bit 14 of the Chicken Bit Register */

	REG_WRITE(DSPCHICKENBIT, REG_READ(DSPCHICKENBIT) | 0xc040);



	gma_power_end(dev);

}