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Commit ecd57ae2 authored by Jingoo Han's avatar Jingoo Han Committed by Florian Tobias Schandinat
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video: s3c-fb: clear SHADOWCON register when clearing hardware window registers 



All bits of SHADOWCON register should be cleared when clearing
hardware window registers; however, some bits of SHADOWCON register
are not cleared previously.

Signed-off-by: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent 5fc05780

drivers/video/s3c-fb.c

+8 −2
Original line number Original line Diff line number Diff line
@@ -1348,8 +1348,14 @@ static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) 
	writel(0, regs + VIDOSD_A(win, sfb->variant));

	writel(0, regs + VIDOSD_A(win, sfb->variant));

	writel(0, regs + VIDOSD_B(win, sfb->variant));

	writel(0, regs + VIDOSD_B(win, sfb->variant));

	writel(0, regs + VIDOSD_C(win, sfb->variant));

	writel(0, regs + VIDOSD_C(win, sfb->variant));

	reg = readl(regs + SHADOWCON);



	writel(reg & ~SHADOWCON_WINx_PROTECT(win), regs + SHADOWCON);

	if (sfb->variant.has_shadowcon) {

		reg = readl(sfb->regs + SHADOWCON);

		reg &= ~(SHADOWCON_WINx_PROTECT(win) |

			SHADOWCON_CHx_ENABLE(win) |

			SHADOWCON_CHx_LOCAL_ENABLE(win));

		writel(reg, sfb->regs + SHADOWCON);

	}

}

}





static int __devinit s3c_fb_probe(struct platform_device *pdev)

static int __devinit s3c_fb_probe(struct platform_device *pdev)