diff mbox series

[v2,22/59] drm/kmb: Set hardcoded values to LCD_VSYNC_START

Message ID 1594760265-11618-23-git-send-email-anitha.chrisanthus@intel.com (mailing list archive)
State New, archived
Headers show
Series Add support for KeemBay DRM driver | expand

Commit Message

Chrisanthus, Anitha July 14, 2020, 8:57 p.m. UTC 
Myriadx code has it set to these values.

v2: upclassed dev_private

Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
---
 drivers/gpu/drm/kmb/kmb_crtc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
index 5c1e858..eca0f3a 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.c
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -102,6 +102,9 @@  static void kmb_crtc_mode_set_nofb(struct drm_crtc *crtc)
 	kmb_write_lcd(dev_p, LCD_H_BACKPORCH, vm.hback_porch - 1);
 	kmb_write_lcd(dev_p, LCD_H_FRONTPORCH, vm.hfront_porch - 1);
 	kmb_write_lcd(dev_p, LCD_HSYNC_WIDTH, vm.hsync_len - 1);
+	/*this is hardcoded as 0 in the Myriadx code */
+	kmb_write_lcd(dev_p, LCD_VSYNC_START, 0);
+	kmb_write_lcd(dev_p, LCD_VSYNC_END, 0);
 
 	if (m->flags == DRM_MODE_FLAG_INTERLACE) {
 		kmb_write_lcd(dev_p,
@@ -112,10 +115,9 @@  static void kmb_crtc_mode_set_nofb(struct drm_crtc *crtc)
 				LCD_V_FRONTPORCH_EVEN, vm.vfront_porch - 1);
 		kmb_write_lcd(dev_p,
 				LCD_V_ACTIVEHEIGHT_EVEN, m->crtc_vdisplay - 1);
-		kmb_write_lcd(dev_p, LCD_VSYNC_START_EVEN,
-				vsync_start_offset);
-		kmb_write_lcd(dev_p, LCD_VSYNC_END_EVEN,
-				vsync_end_offset);
+		/*this is hardcoded as 10 in the Myriadx code*/
+		kmb_write_lcd(dev_p, LCD_VSYNC_START_EVEN, 10);
+		kmb_write_lcd(dev_p, LCD_VSYNC_END_EVEN, 10);
 	}
 	/* enable VL1 layer as default */
 	ctrl = LCD_CTRL_ENABLE | LCD_CTRL_VL1_ENABLE;