From aaba4b58820aebebdee3e3191ef71c11b569c629 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 10 Jul 2013 14:11:45 +0200 Subject: [PATCH] drm/imx: kill firstopen callback This thing seems to do some kind of delayed setup. Really, real kms drivers shouldn't do that at all. Either stuff needs to be dynamically hotplugged or the driver setup sequence needs to be fixed. This patch here just moves the setup at the very end of the driver load callback, with the locking adjusted accordingly. v2: Also move the corresponding put from ->lastclose to ->unload. Cc: Sascha Hauer Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/imx-drm-core.c | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 6bc205baa4a5..878f16882107 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -69,28 +69,20 @@ struct imx_drm_connector { struct module *owner; }; -static int imx_drm_driver_firstopen(struct drm_device *drm) -{ - if (!imx_drm_device_get()) - return -EINVAL; - - return 0; -} - static void imx_drm_driver_lastclose(struct drm_device *drm) { struct imx_drm_device *imxdrm = drm->dev_private; if (imxdrm->fbhelper) drm_fbdev_cma_restore_mode(imxdrm->fbhelper); - - imx_drm_device_put(); } static int imx_drm_driver_unload(struct drm_device *drm) { struct imx_drm_device *imxdrm = drm->dev_private; + imx_drm_device_put(); + drm_mode_config_cleanup(imxdrm->drm); drm_kms_helper_poll_fini(imxdrm->drm); @@ -226,8 +218,6 @@ struct drm_device *imx_drm_device_get(void) struct imx_drm_connector *con; struct imx_drm_crtc *crtc; - mutex_lock(&imxdrm->mutex); - list_for_each_entry(enc, &imxdrm->encoder_list, list) { if (!try_module_get(enc->owner)) { dev_err(imxdrm->dev, "could not get module %s\n", @@ -254,8 +244,6 @@ struct drm_device *imx_drm_device_get(void) imxdrm->references++; - mutex_unlock(&imxdrm->mutex); - return imxdrm->drm; unwind_crtc: @@ -447,6 +435,9 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) */ imxdrm->drm->vblank_disable_allowed = 1; + if (!imx_drm_device_get()) + ret = -EINVAL; + ret = 0; err_init: @@ -792,7 +783,6 @@ static struct drm_driver imx_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM, .load = imx_drm_driver_load, .unload = imx_drm_driver_unload, - .firstopen = imx_drm_driver_firstopen, .lastclose = imx_drm_driver_lastclose, .gem_free_object = drm_gem_cma_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, -- 2.20.1