DSI driver is not really interested in this interrupt. It causes only unnecessary code execution of interrupt handler and could possibly cause FIFO overflow - as it triggers DSI interrupt handler to process next DSI transfer. With this patch we will get rid of about 30 IRQ handler calls per second.
Fixes: e6f988a45857 ("drm/exynos: dsi: add support for Exynos5433") Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index eae44fd714f0..7c3030b7e586 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1264,15 +1264,15 @@ static irqreturn_t exynos_dsi_irq(int irq, void *dev_id)
if (status & DSIM_INT_SW_RST_RELEASE) { u32 mask = ~(DSIM_INT_RX_DONE | DSIM_INT_SFR_FIFO_EMPTY | - DSIM_INT_SFR_HDR_FIFO_EMPTY | DSIM_INT_FRAME_DONE | - DSIM_INT_RX_ECC_ERR | DSIM_INT_SW_RST_RELEASE); + DSIM_INT_SFR_HDR_FIFO_EMPTY | DSIM_INT_RX_ECC_ERR | + DSIM_INT_SW_RST_RELEASE); exynos_dsi_write(dsi, DSIM_INTMSK_REG, mask); complete(&dsi->completed); return IRQ_HANDLED; }
if (!(status & (DSIM_INT_RX_DONE | DSIM_INT_SFR_FIFO_EMPTY | - DSIM_INT_FRAME_DONE | DSIM_INT_PLL_STABLE))) + DSIM_INT_PLL_STABLE))) return IRQ_HANDLED;
if (exynos_dsi_transfer_finish(dsi))