[PATCH 12/14] drm/exynos/dp: stop using display->ctx pointer

[Andrzej Hajda]

The patch replaces accesses to display->ctx pointer by container_of
construct. It will allow to remove ctx field in the future.

Signed-off-by: Andrzej Hajda <a.ha...@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_dp_core.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c 
b/drivers/gpu/drm/exynos/exynos_dp_core.c
index a7f5feb..fadfe1f 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -35,6 +35,12 @@
 #define ctx_from_connector(c)  container_of(c, struct exynos_dp_device, \
                                        connector)
 
+static inline struct exynos_dp_device *
+display_to_dp(struct exynos_drm_display *d)
+{
+       return container_of(d, struct exynos_dp_device, display);
+}
+
 struct bridge_init {
        struct i2c_client *client;
        struct device_node *node;
@@ -881,7 +887,7 @@ static void exynos_dp_hotplug(struct work_struct *work)
 
 static void exynos_dp_commit(struct exynos_drm_display *display)
 {
-       struct exynos_dp_device *dp = display->ctx;
+       struct exynos_dp_device *dp = display_to_dp(display);
        int ret;
 
        /* Keep the panel disabled while we configure video */
@@ -1019,7 +1025,7 @@ static int exynos_drm_attach_lcd_bridge(struct drm_device 
*dev,
 static int exynos_dp_create_connector(struct exynos_drm_display *display,
                                struct drm_encoder *encoder)
 {
-       struct exynos_dp_device *dp = display->ctx;
+       struct exynos_dp_device *dp = display_to_dp(display);
        struct drm_connector *connector = &dp->connector;
        int ret;
 
@@ -1077,7 +1083,7 @@ static void exynos_dp_phy_exit(struct exynos_dp_device 
*dp)
 
 static void exynos_dp_poweron(struct exynos_drm_display *display)
 {
-       struct exynos_dp_device *dp = display->ctx;
+       struct exynos_dp_device *dp = display_to_dp(display);
 
        if (dp->dpms_mode == DRM_MODE_DPMS_ON)
                return;
@@ -1098,7 +1104,7 @@ static void exynos_dp_poweron(struct exynos_drm_display 
*display)
 
 static void exynos_dp_poweroff(struct exynos_drm_display *display)
 {
-       struct exynos_dp_device *dp = display->ctx;
+       struct exynos_dp_device *dp = display_to_dp(display);
 
        if (dp->dpms_mode != DRM_MODE_DPMS_ON)
                return;
@@ -1123,7 +1129,7 @@ static void exynos_dp_poweroff(struct exynos_drm_display 
*display)
 
 static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
 {
-       struct exynos_dp_device *dp = display->ctx;
+       struct exynos_dp_device *dp = display_to_dp(display);
 
        switch (mode) {
        case DRM_MODE_DPMS_ON:
@@ -1385,8 +1391,6 @@ static int exynos_dp_probe(struct platform_device *pdev)
                        return -EPROBE_DEFER;
        }
 
-       dp->display.ctx = dp;
-
        ret = component_add(&pdev->dev, &exynos_dp_ops);
        if (ret)
                exynos_drm_component_del(&pdev->dev,
-- 
1.9.1

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