diff options
| -rw-r--r-- | drivers/video/omap2/dss/dispc.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index bbeb8dd7f108..1659aa912d2b 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -100,8 +100,6 @@ static struct { struct platform_device *pdev; void __iomem *base; - int ctx_loss_cnt; - int irq; unsigned long core_clk_rate; @@ -357,29 +355,20 @@ static void dispc_save_context(void) if (dss_has_feature(FEAT_CORE_CLK_DIV)) SR(DIVISOR); - dispc.ctx_loss_cnt = dss_get_ctx_loss_count(); dispc.ctx_valid = true; - DSSDBG("context saved, ctx_loss_count %d\n", dispc.ctx_loss_cnt); + DSSDBG("context saved\n"); } static void dispc_restore_context(void) { - int i, j, ctx; + int i, j; DSSDBG("dispc_restore_context\n"); if (!dispc.ctx_valid) return; - ctx = dss_get_ctx_loss_count(); - - if (ctx >= 0 && ctx == dispc.ctx_loss_cnt) - return; - - DSSDBG("ctx_loss_count: saved %d, current %d\n", - dispc.ctx_loss_cnt, ctx); - /*RR(IRQENABLE);*/ /*RR(CONTROL);*/ RR(CONFIG); @@ -3768,6 +3757,15 @@ static int dispc_runtime_suspend(struct device *dev) static int dispc_runtime_resume(struct device *dev) { + /* + * The reset value for load mode is 0 (OMAP_DSS_LOAD_CLUT_AND_FRAME) + * but we always initialize it to 2 (OMAP_DSS_LOAD_FRAME_ONLY) in + * _omap_dispc_initial_config(). We can thus use it to detect if + * we have lost register context. + */ + if (REG_GET(DISPC_CONFIG, 2, 1) == OMAP_DSS_LOAD_FRAME_ONLY) + return 0; + _omap_dispc_initial_config(); dispc_restore_context(); |
