static void set_display_intf(struct mdp5_kms *mdp5_kms,
struct mdp5_interface *intf)
{
unsigned long flags;
u32 intf_sel;
spin_lock_irqsave(&mdp5_kms->resource_lock, flags);
intf_sel = mdp5_read(mdp5_kms, REG_MDP5_MDP_DISP_INTF_SEL(0));
switch (intf->num) {
case 0:
intf_sel &= ~MDP5_MDP_DISP_INTF_SEL_INTF0__MASK;
intf_sel |= MDP5_MDP_DISP_INTF_SEL_INTF0(intf->type);
break;
case 1:
intf_sel &= ~MDP5_MDP_DISP_INTF_SEL_INTF1__MASK;
intf_sel |= MDP5_MDP_DISP_INTF_SEL_INTF1(intf->type);
break;
case 2:
intf_sel &= ~MDP5_MDP_DISP_INTF_SEL_INTF2__MASK;
intf_sel |= MDP5_MDP_DISP_INTF_SEL_INTF2(intf->type);
break;
case 3:
intf_sel &= ~MDP5_MDP_DISP_INTF_SEL_INTF3__MASK;
intf_sel |= MDP5_MDP_DISP_INTF_SEL_INTF3(intf->type);
break;
default:
BUG();
break;
}
mdp5_write(mdp5_kms, REG_MDP5_MDP_DISP_INTF_SEL(0), intf_sel);
spin_unlock_irqrestore(&mdp5_kms->resource_lock, flags);
}
static int mdp5_hw_init(struct msm_kms *kms)
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
struct drm_device *dev = mdp5_kms->dev;
unsigned long flags;
pm_runtime_get_sync(dev->dev);
/* Magic unknown register writes:
*
* W VBIF:0x004 00000001 (mdss_mdp.c:839)
* W MDP5:0x2e0 0xe9 (mdss_mdp.c:839)
* W MDP5:0x2e4 0x55 (mdss_mdp.c:839)
* W MDP5:0x3ac 0xc0000ccc (mdss_mdp.c:839)
* W MDP5:0x3b4 0xc0000ccc (mdss_mdp.c:839)
* W MDP5:0x3bc 0xcccccc (mdss_mdp.c:839)
* W MDP5:0x4a8 0xcccc0c0 (mdss_mdp.c:839)
* W MDP5:0x4b0 0xccccc0c0 (mdss_mdp.c:839)
* W MDP5:0x4b8 0xccccc000 (mdss_mdp.c:839)
*
* Downstream fbdev driver gets these register offsets/values
* from DT.. not really sure what these registers are or if
* different values for different boards/SoC's, etc. I guess
* they are the golden registers.
*
* Not setting these does not seem to cause any problem. But
* we may be getting lucky with the bootloader initializing
* them for us. OTOH, if we can always count on the bootloader
* setting the golden registers, then perhaps we don't need to
* care.
*/
spin_lock_irqsave(&mdp5_kms->resource_lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_MDP_DISP_INTF_SEL(0), 0);
spin_unlock_irqrestore(&mdp5_kms->resource_lock, flags);
mdp5_ctlm_hw_reset(mdp5_kms->ctlm);
pm_runtime_put_sync(dev->dev);
return 0;
}
