diff options
Diffstat (limited to 'drivers/gpu/drm/mxsfb/mxsfb_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c index 15823954d7dd..9ccd01f2c475 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c @@ -234,9 +234,12 @@ static void mxsfb_enable_controller(struct mxsfb_drm_private *mxsfb) clk_prepare_enable(mxsfb->clk); mxsfb_enable_axi_clk(mxsfb); - if (mxsfb->devdata->ipversion >= 4) + if (mxsfb->devdata->ipversion >= 4) { writel(CTRL2_OUTSTANDING_REQS(REQ_16), mxsfb->base + LCDC_V4_CTRL2 + REG_SET); + /* Assert LCD Reset bit */ + writel(CTRL2_LCD_RESET, mxsfb->base + LCDC_V4_CTRL2 + REG_SET); + } /* If it was disabled, re-enable the mode again */ writel(CTRL_DOTCLK_MODE, mxsfb->base + LCDC_CTRL + REG_SET); @@ -256,9 +259,12 @@ static void mxsfb_disable_controller(struct mxsfb_drm_private *mxsfb) { u32 reg; - if (mxsfb->devdata->ipversion >= 4) + if (mxsfb->devdata->ipversion >= 4) { writel(CTRL2_OUTSTANDING_REQS(0x7), mxsfb->base + LCDC_V4_CTRL2 + REG_CLR); + /* De-assert LCD Reset bit */ + writel(CTRL2_LCD_RESET, mxsfb->base + LCDC_V4_CTRL2 + REG_CLR); + } writel(CTRL_RUN, mxsfb->base + LCDC_CTRL + REG_CLR); @@ -341,6 +347,8 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb) return; clk_set_rate(mxsfb->clk, m->crtc_clock * 1000); + DRM_DEV_DEBUG_DRIVER(mxsfb->dev, "Pixel clock: %dkHz (actual: %dkHz)\n", + m->crtc_clock, (int)(clk_get_rate(mxsfb->clk) / 1000)); DRM_DEV_DEBUG_DRIVER(mxsfb->dev, "Connector bus_flags: 0x%08X\n", bus_flags); |