From f026eb6e031f704fad991fdeb76c40d7c4a301bd Mon Sep 17 00:00:00 2001 From: Sylvain Rochet Date: Thu, 12 Mar 2015 19:47:19 +0100 Subject: [PATCH] drm: atmel-hlcdc: use appropriate enabled flag in suspend/resume Unfortunately we used the enabled flag in struct drm_crtc instead of the enabled flag in struct atmel_hlcdc_crtc. This obviously leads to discrepancies on crtc enable state. This patch fixes the issue by using the struct atmel_hlcdc_crtc enabled flag in PM support. Signed-off-by: Sylvain Rochet Signed-off-by: Boris Brezillon --- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 21 +++++++++++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 19 ++++--------------- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 3 +++ 3 files changed, 28 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index d55c0c2..f69b925 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -207,6 +207,27 @@ static void atmel_hlcdc_crtc_enable(struct drm_crtc *c) crtc->enabled = true; } +void atmel_hlcdc_crtc_suspend(struct drm_crtc *c) +{ + struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c); + + if (crtc->enabled) { + atmel_hlcdc_crtc_disable(c); + /* save enable state for resume */ + crtc->enabled = true; + } +} + +void atmel_hlcdc_crtc_resume(struct drm_crtc *c) +{ + struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c); + + if (crtc->enabled) { + crtc->enabled = false; + atmel_hlcdc_crtc_enable(c); + } +} + static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c, struct drm_crtc_state *s) { diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index c4bb1f9..60b0c13 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -569,14 +569,8 @@ static int atmel_hlcdc_dc_drm_suspend(struct device *dev) return 0; drm_modeset_lock_all(drm_dev); - list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) { - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - if (crtc->enabled) { - crtc_funcs->disable(crtc); - /* save enable state for resume */ - crtc->enabled = true; - } - } + list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) + atmel_hlcdc_crtc_suspend(crtc); drm_modeset_unlock_all(drm_dev); return 0; } @@ -590,13 +584,8 @@ static int atmel_hlcdc_dc_drm_resume(struct device *dev) return 0; drm_modeset_lock_all(drm_dev); - list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) { - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - if (crtc->enabled) { - crtc->enabled = false; - crtc_funcs->enable(crtc); - } - } + list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) + atmel_hlcdc_crtc_resume(crtc); drm_modeset_unlock_all(drm_dev); return 0; } diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h index 1ea9c2c..cf6b375 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h @@ -155,6 +155,9 @@ void atmel_hlcdc_crtc_irq(struct drm_crtc *c); void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file); +void atmel_hlcdc_crtc_suspend(struct drm_crtc *crtc); +void atmel_hlcdc_crtc_resume(struct drm_crtc *crtc); + int atmel_hlcdc_crtc_create(struct drm_device *dev); int atmel_hlcdc_create_outputs(struct drm_device *dev); -- 2.7.4