Commit c3720e65 authored by Ming Qian's avatar Ming Qian Committed by Hans Verkuil
Browse files

media: imx-jpeg: Disable useless interrupt to avoid kernel panic 



There is a hardware bug that the interrupt STMBUF_HALF may be triggered
after or when disable interrupt.
It may led to unexpected kernel panic.
And interrupt STMBUF_HALF and STMBUF_RTND have no other effect.
So disable them and the unused interrupts.

meanwhile clear the interrupt status when disable interrupt.

Signed-off-by: default avatarMing Qian <ming.qian@nxp.com>
Reviewed-by: default avatarMirela Rabulea <mirela.rabulea@nxp.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
parent c76c2e92

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg-hw.c

+3 −1
Original line number Diff line number Diff line
@@ -76,12 +76,14 @@ void print_wrapper_info(struct device *dev, void __iomem *reg) 


void mxc_jpeg_enable_irq(void __iomem *reg, int slot)

{

	writel(0xFFFFFFFF, reg + MXC_SLOT_OFFSET(slot, SLOT_IRQ_EN));

	writel(0xFFFFFFFF, reg + MXC_SLOT_OFFSET(slot, SLOT_STATUS));

	writel(0xF0C, reg + MXC_SLOT_OFFSET(slot, SLOT_IRQ_EN));

}



void mxc_jpeg_disable_irq(void __iomem *reg, int slot)

{

	writel(0x0, reg + MXC_SLOT_OFFSET(slot, SLOT_IRQ_EN));

	writel(0xFFFFFFFF, reg + MXC_SLOT_OFFSET(slot, SLOT_STATUS));

}



void mxc_jpeg_sw_reset(void __iomem *reg)