The call to drm_crtc_vblank_off(&lcdif->crtc); disables IRQ generation from the LCDIF block already and this is called in mxsfb_load() before request_irq(), so explicitly disabling IRQ using custom function like mxsfb_irq_disable() is not needed, remove it. The request_irq() call would return -ENOTCONN if IRQ is IRQ_NOTCONNECTED already, so remove the unnecessary check. Finally, remove both mxsfb_irq_install() and mxsfb_irq_uninstall() as well, since they are no longer useful.
Signed-off-by: Marek Vasut marex@denx.de Cc: Alexander Stein alexander.stein@ew.tq-group.com Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: Lucas Stach l.stach@pengutronix.de Cc: Peng Fan peng.fan@nxp.com Cc: Robby Cai robby.cai@nxp.com Cc: Sam Ravnborg sam@ravnborg.org Cc: Stefan Agner stefan@agner.ch --- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 38 +++++++------------------------ 1 file changed, 8 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index bb15e32d8a014..11298df50917c 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -156,33 +156,6 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data) return IRQ_HANDLED; }
-static void mxsfb_irq_disable(struct drm_device *drm) -{ - struct mxsfb_drm_private *mxsfb = drm->dev_private; - - /* Disable and clear VBLANK IRQ */ - writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR); - writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR); -} - -static int mxsfb_irq_install(struct drm_device *dev, int irq) -{ - if (irq == IRQ_NOTCONNECTED) - return -ENOTCONN; - - mxsfb_irq_disable(dev); - - return request_irq(irq, mxsfb_irq_handler, 0, dev->driver->name, dev); -} - -static void mxsfb_irq_uninstall(struct drm_device *dev) -{ - struct mxsfb_drm_private *mxsfb = dev->dev_private; - - mxsfb_irq_disable(dev); - free_irq(mxsfb->irq, dev); -} - static int mxsfb_load(struct drm_device *drm, const struct mxsfb_devdata *devdata) { @@ -261,7 +234,8 @@ static int mxsfb_load(struct drm_device *drm, return ret; mxsfb->irq = ret;
- ret = mxsfb_irq_install(drm, mxsfb->irq); + ret = request_irq(mxsfb->irq, mxsfb_irq_handler, 0, + drm->driver->name, drm); if (ret < 0) { dev_err(drm->dev, "Failed to install IRQ handler\n"); return ret; @@ -278,16 +252,20 @@ static int mxsfb_load(struct drm_device *drm,
static void mxsfb_unload(struct drm_device *drm) { + struct mxsfb_drm_private *mxsfb = drm->dev_private; + pm_runtime_get_sync(drm->dev);
+ drm_crtc_vblank_off(&mxsfb->crtc); + drm_kms_helper_poll_fini(drm); drm_mode_config_cleanup(drm);
- mxsfb_irq_uninstall(drm); - pm_runtime_put_sync(drm->dev); pm_runtime_disable(drm->dev);
+ free_irq(mxsfb->irq, drm->dev); + drm->dev_private = NULL; }