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

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

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1553874485-31259-1-git-send-email-yannick.fertre@st.com
This commit is contained in:
Yannick Fertré 2019-03-29 16:48:05 +01:00 committed by Benjamin Gaignard
parent 12d7a93c86
commit 798e5b2a4f
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/stm/ltdc.c
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@ -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",