diff mbox series

[47/59] drm/kmb: Don’t inadvertantly disable LCD controller

Message ID 1593552491-23698-48-git-send-email-anitha.chrisanthus@intel.com (mailing list archive)
State New, archived
Headers show
Series Add support for Keem Bay DRM driver | expand

Commit Message

Chrisanthus, Anitha June 30, 2020, 9:27 p.m. UTC 
setbits instead of write dword for LCD_CONTROL register
this was inadvertantly disabling the LCD controller.

Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
---
 drivers/gpu/drm/kmb/kmb_plane.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index 1990e8c..d87a3a2 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -178,6 +178,9 @@  static void kmb_plane_atomic_disable(struct drm_plane *plane,
 	kmb_clr_bitmask_lcd(dev_p, LCD_LAYERn_DMA_CFG(plane_id),
 			LCD_DMA_LAYER_ENABLE);
 	kmb_clr_bitmask_lcd(dev_p, LCD_CONTROL, ctrl);
+	DRM_INFO("%s : %d lcd_ctrl = 0x%x lcd_int_enable=0x%x\n",
+			__func__, __LINE__, kmb_read_lcd(dev_p, LCD_CONTROL),
+			kmb_read_lcd(dev_p, LCD_INT_ENABLE));
 }
 
 
@@ -476,7 +479,7 @@  static void kmb_plane_atomic_update(struct drm_plane *plane,
 	 */
 	ctrl |= LCD_CTRL_VHSYNC_IDLE_LVL;
 
-	kmb_write_lcd(dev_p, LCD_CONTROL, ctrl);
+	kmb_set_bitmask_lcd(dev_p, LCD_CONTROL, ctrl);
 
 	/* FIXME no doc on how to set output format,these values are taken
 	 * from the Myriadx tests