Commit 798e5b2a authored by Yannick Fertré's avatar Yannick Fertré Committed by Benjamin Gaignard
Browse files

drm/stm: ltdc: disable hw interrupts before its handler init 



Interrupt register must be disabled before call of
devm_request_threaded_irq function to avoid dummy interruption.

Signed-off-by: default avatarYannick Fertré <yannick.fertre@st.com>
Acked-by: default avatarPhilippe Cornu <philippe.cornu@st.com>
Signed-off-by: default avatarBenjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1553874485-31259-1-git-send-email-yannick.fertre@st.com
parent 12d7a93c

drivers/gpu/drm/stm/ltdc.c

+4 −4
Original line number Diff line number Diff line
@@ -1142,6 +1142,10 @@ int ltdc_load(struct drm_device *ddev) 
		goto err;

	}



	/* Disable interrupts */

	reg_clear(ldev->regs, LTDC_IER,

		  IER_LIE | IER_RRIE | IER_FUIE | IER_TERRIE);



	for (i = 0; i < MAX_IRQ; i++) {

		irq = platform_get_irq(pdev, i);

		if (irq < 0)
@@ -1162,10 +1166,6 @@ int ltdc_load(struct drm_device *ddev) 
		reset_control_deassert(rstc);

	}



	/* Disable interrupts */

	reg_clear(ldev->regs, LTDC_IER,

		  IER_LIE | IER_RRIE | IER_FUIE | IER_TERRIE);



	ret = ltdc_get_caps(ddev);

	if (ret) {

		DRM_ERROR("hardware identifier (0x%08x) not supported!\n",

CRA Git | Maintained and supported by SUSTech CRA and CCSE