@@ -603,6 +603,7 @@ static int malidp_bind(struct device *dev)
for (i = 0; i < MAX_OUTPUT_CHANNELS; i++)
out_depth = (out_depth << 8) | (output_width[i] & 0xf);
malidp_hw_write(hwdev, out_depth, hwdev->hw->map.out_depth_base);
+ hwdev->output_color_depth = out_depth;
atomic_set(&malidp->config_valid, 0);
init_waitqueue_head(&malidp->wq);
@@ -233,6 +233,8 @@ static void malidp500_modeset(struct malidp_hw_device *hwdev, struct videomode *
{
u32 val = 0;
+ malidp_hw_write(hwdev, hwdev->output_color_depth,
+ hwdev->hw->map.out_depth_base);
malidp_hw_clearbits(hwdev, MALIDP500_DC_CLEAR_MASK, MALIDP500_DC_CONTROL);
if (mode->flags & DISPLAY_FLAGS_HSYNC_HIGH)
val |= MALIDP500_HSYNCPOL;
@@ -457,6 +459,8 @@ static void malidp550_modeset(struct malidp_hw_device *hwdev, struct videomode *
{
u32 val = MALIDP_DE_DEFAULT_PREFETCH_START;
+ malidp_hw_write(hwdev, hwdev->output_color_depth,
+ hwdev->hw->map.out_depth_base);
malidp_hw_write(hwdev, val, MALIDP550_DE_CONTROL);
/*
* Mali-DP550 and Mali-DP650 encode the background color like this:
@@ -228,6 +228,7 @@ struct malidp_hw_device {
u8 min_line_size;
u16 max_line_size;
+ u32 output_color_depth;
/* track the device PM state */
bool pm_suspended;
One needs to store the value of the OUTPUT_DEPTH that one has parsed from device tree, so that it can be restored on system resume. This value is set in the modeset function as this gets reset when the system suspends. Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com> --- Changes in v3:- - Rebased the patch on top of the earlier v3 patches. Changes in v2:- - Removed the change id --- drivers/gpu/drm/arm/malidp_drv.c | 1 + drivers/gpu/drm/arm/malidp_hw.c | 4 ++++ drivers/gpu/drm/arm/malidp_hw.h | 1 + 3 files changed, 6 insertions(+)