OMAP: DSS: dispc: enable/disable clocks in error handler (13eae1f9) · Commits · 戴 / test

There's no guarantee that the error handler worker thread will run while the dispc clocks are on. Explicitly enable/disable them. Signed-off-by:

drivers/video/omap2/dss/dispc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -3306,6 +3306,8 @@ static void dispc_error_worker(struct work_struct *work)
		dispc.error_irqs = 0;
		spin_unlock_irqrestore(&dispc.irq_lock, flags);

		dispc_runtime_get();

		if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
		DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
		for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
		@@ -3492,6 +3494,8 @@ static void dispc_error_worker(struct work_struct *work)
		dispc.irq_error_mask \|= errors;
		_omap_dispc_set_irqs();
		spin_unlock_irqrestore(&dispc.irq_lock, flags);

		dispc_runtime_put();
		}

		int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)