Hello Linus Walleij,
The patch 5fc537bfd000: "drm/mcde: Add new driver for ST-Ericsson
MCDE" from May 24, 2019, leads to the following static checker
warning:
drivers/gpu/drm/mcde/mcde_display.c:570 mcde_configure_channel()
error: uninitialized symbol 'val'.
drivers/gpu/drm/mcde/mcde_display.c
552 case MCDE_VIDEO_TE_FLOW:
553 val = MCDE_CHNLXSYNCHMOD_SRC_SYNCH_HARDWARE
554 << MCDE_CHNLXSYNCHMOD_SRC_SYNCH_SHIFT;
555 val |= MCDE_CHNLXSYNCHMOD_OUT_SYNCH_SRC_TE0
556 << MCDE_CHNLXSYNCHMOD_OUT_SYNCH_SRC_SHIFT;
557 break;
558 case MCDE_VIDEO_FORMATTER_FLOW:
559 val = MCDE_CHNLXSYNCHMOD_SRC_SYNCH_HARDWARE
560 << MCDE_CHNLXSYNCHMOD_SRC_SYNCH_SHIFT;
561 val |= MCDE_CHNLXSYNCHMOD_OUT_SYNCH_SRC_FORMATTER
562 << MCDE_CHNLXSYNCHMOD_OUT_SYNCH_SRC_SHIFT;
563 break;
564 default:
565 dev_err(mcde->dev, "unknown flow mode %d\n",
566 mcde->flow_mode);
"val" not initialized on this path.
567 break;
568 }
569
570 writel(val, mcde->regs + sync);
571
572 /* Set up pixels per line and lines per frame */
regards,
dan carpenter
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