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drm.7971
0545-drm-rcar-du-Use-the-VBK-interrupt-for-vbla...
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File 0545-drm-rcar-du-Use-the-VBK-interrupt-for-vblank-events.patch of Package drm.7971
From 758e22acf4fd9aaf51c7bae93a47401b8f792d56 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Date: Mon, 10 Jul 2017 23:46:39 +0300 Subject: [PATCH] drm: rcar-du: Use the VBK interrupt for vblank events commit cbbb90b0c084d7dfb2ed8e3fecf8df200fbdd2a0 upstream. When implementing support for interlaced modes, the driver switched from reporting vblank events on the vertical blanking (VBK) interrupt to the frame end interrupt (FRM). This incorrectly divided the reported refresh rate by two. Fix it by moving back to the VBK interrupt. Fixes: 906eff7fcada ("drm: rcar-du: Implement support for interlaced modes") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: thongsyho <thong.ho.px@rvc.renesas.com> Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -551,7 +551,7 @@ static irqreturn_t rcar_du_crtc_irq(int status = rcar_du_crtc_read(rcrtc, DSSR); rcar_du_crtc_write(rcrtc, DSRCR, status & DSRCR_MASK); - if (status & DSSR_FRM) { + if (status & DSSR_VBK) { drm_crtc_handle_vblank(&rcrtc->crtc); rcar_du_crtc_finish_page_flip(rcrtc); ret = IRQ_HANDLED;
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