phy: rockchip-inno-mipi-dphy: use phy_set_bus_width() to set the lane mbps
authorWeiYong Bi <bivvy.bi@rock-chips.com>
Wed, 29 Mar 2017 09:48:09 +0000 (17:48 +0800)
committerHuang, Tao <huangtao@rock-chips.com>
Fri, 7 Apr 2017 06:23:05 +0000 (14:23 +0800)
We use phy_set_bus_width() to set the lane rate that the PHY supports.
The controller driver may then use phy_get_bus_width() to fetch the
PHY lane rate in order to properly configure the controller.

Change-Id: I116f0d82ad187806914c0d566eab92b922f143ef
Signed-off-by: WeiYong Bi <bivvy.bi@rock-chips.com>
drivers/phy/phy-rockchip-inno-mipi-dphy.c

index 6d47458..648cd2e 100644 (file)
@@ -234,6 +234,7 @@ struct dsi_panel {
 
 struct inno_mipi_dphy {
        struct device *dev;
+       struct phy *phy;
        void __iomem *regs;
        struct clk *ref_clk;
        struct clk *pclk;
@@ -475,7 +476,8 @@ static void inno_mipi_dphy_pll_init(struct inno_mipi_dphy *inno)
                        break;
        }
 
-       inno->lane_mbps = pllref / prediv * fbdiv;
+       inno->lane_mbps = pllref * fbdiv / prediv;
+       phy_set_bus_width(inno->phy, inno->lane_mbps);
 
        mask = M_FBDIV_8 | M_PREDIV;
        val = V_FBDIV_8(fbdiv >> 8) | V_PREDIV(prediv);
@@ -674,7 +676,6 @@ static int inno_mipi_dphy_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
        struct inno_mipi_dphy *inno;
-       struct phy *phy;
        struct phy_provider *phy_provider;
        struct resource *res;
        int ret;
@@ -716,13 +717,13 @@ static int inno_mipi_dphy_probe(struct platform_device *pdev)
                inno->rst = NULL;
        }
 
-       phy = devm_phy_create(&pdev->dev, NULL, &inno_mipi_dphy_ops);
-       if (IS_ERR(phy)) {
+       inno->phy = devm_phy_create(&pdev->dev, NULL, &inno_mipi_dphy_ops);
+       if (IS_ERR(inno->phy)) {
                dev_err(&pdev->dev, "failed to create MIPI D-PHY\n");
-               return PTR_ERR(phy);
+               return PTR_ERR(inno->phy);
        }
 
-       phy_set_drvdata(phy, inno);
+       phy_set_drvdata(inno->phy, inno);
 
        phy_provider = devm_of_phy_provider_register(&pdev->dev,
                                                     of_phy_simple_xlate);