Example #1
0
static void decon_enable(struct exynos_drm_crtc *crtc)
{
	struct decon_context *ctx = crtc->ctx;
	int ret;
	int i;

	if (!ctx->suspended)
		return;

	ctx->suspended = false;

	pm_runtime_get_sync(ctx->dev);

	for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
		ret = clk_prepare_enable(ctx->clks[i]);
		if (ret < 0)
			goto err;
	}

	set_bit(BIT_CLKS_ENABLED, &ctx->enabled);

	/* if vblank was enabled status, enable it again. */
	if (test_and_clear_bit(0, &ctx->irq_flags))
		decon_enable_vblank(ctx->crtc);

	decon_commit(ctx->crtc);

	return;
err:
	while (--i >= 0)
		clk_disable_unprepare(ctx->clks[i]);

	ctx->suspended = true;
}
static void decon_enable(struct exynos_drm_crtc *crtc)
{
	struct decon_context *ctx = crtc->ctx;

	if (!test_and_clear_bit(BIT_SUSPENDED, &ctx->flags))
		return;

	pm_runtime_get_sync(ctx->dev);

	set_bit(BIT_CLKS_ENABLED, &ctx->flags);

	/* if vblank was enabled status, enable it again. */
	if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
		decon_enable_vblank(ctx->crtc);

	decon_commit(ctx->crtc);
}