diff options
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c index 255b5f5ab2ce..79c034ae075d 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c @@ -200,7 +200,28 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, static void dsi_7nm_phy_disable(struct msm_dsi_phy *phy) { - /* TODO */ + void __iomem *base = phy->base; + u32 data; + + DBG(""); + + if (dsi_phy_hw_v4_0_is_pll_on(phy)) + pr_warn("Turning OFF PHY while PLL is on\n"); + + dsi_phy_hw_v4_0_config_lpcdrx(phy, false); + data = dsi_phy_read(base + REG_DSI_7nm_PHY_CMN_CTRL_0); + + /* disable all lanes */ + data &= ~0x1F; + dsi_phy_write(base + REG_DSI_7nm_PHY_CMN_CTRL_0, data); + dsi_phy_write(base + REG_DSI_7nm_PHY_CMN_LANE_CTRL0, 0); + + /* Turn off all PHY blocks */ + dsi_phy_write(base + REG_DSI_7nm_PHY_CMN_CTRL_0, 0x00); + /* make sure phy is turned off */ + wmb(); + + DBG("DSI%d PHY disabled", phy->id); } static int dsi_7nm_phy_init(struct msm_dsi_phy *phy) |