drm/msm/dsi: Make each PHY type compilation independent

On a certain platform, only one type of DSI PHY is used.
This change allows the user to only compile the PHY type
which is being used.

Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

4 files changed, 33 insertions, 4 deletions

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 331b29152e2f..8e6c7c638e24 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -54,3 +54,17 @@ config DRM_MSM_DSI_PLL
         help
           Choose this option to enable DSI PLL driver which provides DSI
           source clocks under common clock framework.
+
+config DRM_MSM_DSI_28NM_PHY
+        bool "Enable DSI 28nm PHY driver in MSM DRM"
+        depends on DRM_MSM_DSI
+        default y
+        help
+          Choose this option if the 28nm DSI PHY is used on the platform.
+
+config DRM_MSM_DSI_20NM_PHY
+        bool "Enable DSI 20nm PHY driver in MSM DRM"
+        depends on DRM_MSM_DSI
+        default y
+        help
+          Choose this option if the 20nm DSI PHY is used on the platform.
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 30f998ad9471..89debc7f22b0 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -57,11 +57,14 @@ msm-$(CONFIG_DRM_MSM_DSI) += dsi/dsi.o \
                         dsi/dsi_host.o \
                         dsi/dsi_manager.o \
                         dsi/phy/dsi_phy.o \
-                        dsi/phy/dsi_phy_20nm.o \
-                        dsi/phy/dsi_phy_28nm.o \
                         mdp/mdp5/mdp5_cmd_encoder.o
 
-msm-$(CONFIG_DRM_MSM_DSI_PLL) += dsi/pll/dsi_pll.o \
-                                dsi/pll/dsi_pll_28nm.o
+msm-$(CONFIG_DRM_MSM_DSI_28NM_PHY) += dsi/phy/dsi_phy_28nm.o
+msm-$(CONFIG_DRM_MSM_DSI_20NM_PHY) += dsi/phy/dsi_phy_20nm.o
+
+ifeq ($(CONFIG_DRM_MSM_DSI_PLL),y)
+msm-y += dsi/pll/dsi_pll.o
+msm-$(CONFIG_DRM_MSM_DSI_28NM_PHY) += dsi/pll/dsi_pll_28nm.o
+endif
 
 obj-$(CONFIG_DRM_MSM)   += msm.o
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index 828a94cc7f39..401ff58d6893 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -267,12 +267,16 @@ static void dsi_phy_disable_resource(struct msm_dsi_phy *phy)
 }
 
 static const struct of_device_id dsi_phy_dt_match[] = {
+#ifdef CONFIG_DRM_MSM_DSI_28NM_PHY
         { .compatible = "qcom,dsi-phy-28nm-hpm",
           .data = &dsi_phy_28nm_hpm_cfgs },
         { .compatible = "qcom,dsi-phy-28nm-lp",
           .data = &dsi_phy_28nm_lp_cfgs },
+#endif
+#ifdef CONFIG_DRM_MSM_DSI_20NM_PHY
         { .compatible = "qcom,dsi-phy-20nm",
           .data = &dsi_phy_20nm_cfgs },
+#endif
         {}
 };
 
diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
index b69df19f1fd4..063caa2c5740 100644
--- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
+++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.h
@@ -83,8 +83,16 @@ void msm_dsi_pll_helper_unregister_clks(struct platform_device *pdev,
 /*
  * Initialization for Each PLL Type
  */
+#ifdef CONFIG_DRM_MSM_DSI_28NM_PHY
 struct msm_dsi_pll *msm_dsi_pll_28nm_init(struct platform_device *pdev,
                                         enum msm_dsi_phy_type type, int id);
+#else
+static inline struct msm_dsi_pll *msm_dsi_pll_28nm_init(
+        struct platform_device *pdev, enum msm_dsi_phy_type type, int id)
+{
+        return ERR_PTR(-ENODEV);
+}
+#endif
 
 #endif /* __DSI_PLL_H__ */