Since crtc maps 1:1 to the device there is no point in allocating it
separately, another benefit is possibility of direct initialisation
of its fields which is more readable and allows further expansion.

Signed-off-by: Andrzej Hajda <a.ha...@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_mixer.c | 39 ++++++++++++++-------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c 
b/drivers/gpu/drm/exynos/exynos_mixer.c
index 1c82265acf0a..7fcefcbe68db 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -99,7 +99,7 @@ struct mixer_context {
        struct platform_device *pdev;
        struct device           *dev;
        struct drm_device       *drm_dev;
-       struct exynos_drm_crtc  *crtc;
+       struct exynos_drm_crtc  crtc;
        struct exynos_drm_plane planes[MIXER_WIN_NR];
        unsigned long           flags;
 
@@ -117,6 +117,8 @@ struct mixer_context {
        int                     scan_value;
 };
 
+#define to_mixer(ptr) container_of(ptr, struct mixer_context, ptr)
+
 struct mixer_drv_data {
        enum mixer_version_id   version;
        bool                                    is_vp_enabled;
@@ -474,7 +476,7 @@ static void mixer_stop(struct mixer_context *ctx)
 
 static void mixer_commit(struct mixer_context *ctx)
 {
-       struct drm_display_mode *mode = &ctx->crtc->base.state->adjusted_mode;
+       struct drm_display_mode *mode = &ctx->crtc.base.state->adjusted_mode;
 
        mixer_cfg_scan(ctx, mode->hdisplay, mode->vdisplay);
        mixer_cfg_rgb_fmt(ctx, mode);
@@ -732,7 +734,7 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
                    && !mixer_is_synced(ctx))
                        goto out;
 
-               drm_crtc_handle_vblank(&ctx->crtc->base);
+               drm_crtc_handle_vblank(&ctx->crtc.base);
        }
 
 out:
@@ -876,7 +878,7 @@ static void mixer_ctx_remove(struct mixer_context 
*mixer_ctx)
 
 static int mixer_enable_vblank(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *mixer_ctx = crtc->ctx;
+       struct mixer_context *mixer_ctx = to_mixer(crtc);
 
        __set_bit(MXR_BIT_VSYNC, &mixer_ctx->flags);
        if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
@@ -891,7 +893,7 @@ static int mixer_enable_vblank(struct exynos_drm_crtc *crtc)
 
 static void mixer_disable_vblank(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *mixer_ctx = crtc->ctx;
+       struct mixer_context *mixer_ctx = to_mixer(crtc);
 
        __clear_bit(MXR_BIT_VSYNC, &mixer_ctx->flags);
 
@@ -905,7 +907,7 @@ static void mixer_disable_vblank(struct exynos_drm_crtc 
*crtc)
 
 static void mixer_atomic_begin(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *ctx = crtc->ctx;
+       struct mixer_context *ctx = to_mixer(crtc);
 
        if (!test_bit(MXR_BIT_POWERED, &ctx->flags))
                return;
@@ -918,7 +920,7 @@ static void mixer_atomic_begin(struct exynos_drm_crtc *crtc)
 static void mixer_update_plane(struct exynos_drm_crtc *crtc,
                               struct exynos_drm_plane *plane)
 {
-       struct mixer_context *mixer_ctx = crtc->ctx;
+       struct mixer_context *mixer_ctx = to_mixer(crtc);
 
        DRM_DEBUG_KMS("win: %d\n", plane->index);
 
@@ -934,7 +936,7 @@ static void mixer_update_plane(struct exynos_drm_crtc *crtc,
 static void mixer_disable_plane(struct exynos_drm_crtc *crtc,
                                struct exynos_drm_plane *plane)
 {
-       struct mixer_context *mixer_ctx = crtc->ctx;
+       struct mixer_context *mixer_ctx = to_mixer(crtc);
        unsigned long flags;
 
        DRM_DEBUG_KMS("win: %d\n", plane->index);
@@ -949,7 +951,7 @@ static void mixer_disable_plane(struct exynos_drm_crtc 
*crtc,
 
 static void mixer_atomic_flush(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *mixer_ctx = crtc->ctx;
+       struct mixer_context *mixer_ctx = to_mixer(crtc);
 
        if (!test_bit(MXR_BIT_POWERED, &mixer_ctx->flags))
                return;
@@ -960,7 +962,7 @@ static void mixer_atomic_flush(struct exynos_drm_crtc *crtc)
 
 static void mixer_enable(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *ctx = crtc->ctx;
+       struct mixer_context *ctx = to_mixer(crtc);
 
        if (test_bit(MXR_BIT_POWERED, &ctx->flags))
                return;
@@ -989,7 +991,7 @@ static void mixer_enable(struct exynos_drm_crtc *crtc)
 
 static void mixer_disable(struct exynos_drm_crtc *crtc)
 {
-       struct mixer_context *ctx = crtc->ctx;
+       struct mixer_context *ctx = to_mixer(crtc);
        int i;
 
        if (!test_bit(MXR_BIT_POWERED, &ctx->flags))
@@ -1011,7 +1013,7 @@ static void mixer_disable(struct exynos_drm_crtc *crtc)
 static int mixer_mode_valid(struct exynos_drm_crtc *crtc,
                const struct drm_display_mode *mode)
 {
-       struct mixer_context *ctx = crtc->ctx;
+       struct mixer_context *ctx = to_mixer(crtc);
        u32 w = mode->hdisplay, h = mode->vdisplay;
 
        DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d\n", w, h,
@@ -1037,7 +1039,7 @@ static bool mixer_mode_fixup(struct exynos_drm_crtc *crtc,
                   const struct drm_display_mode *mode,
                   struct drm_display_mode *adjusted_mode)
 {
-       struct mixer_context *ctx = crtc->ctx;
+       struct mixer_context *ctx = to_mixer(crtc);
        int width = mode->hdisplay, height = mode->vdisplay, i;
 
        struct {
@@ -1139,7 +1141,6 @@ static int mixer_bind(struct device *dev, struct device 
*manager, void *data)
 {
        struct mixer_context *ctx = dev_get_drvdata(dev);
        struct drm_device *drm_dev = data;
-       struct exynos_drm_plane *exynos_plane;
        unsigned int i;
        int ret;
        static enum drm_plane_type types[] = { DRM_PLANE_TYPE_PRIMARY,
@@ -1173,14 +1174,14 @@ static int mixer_bind(struct device *dev, struct device 
*manager, void *data)
                        return ret;
        }
 
-       exynos_plane = &ctx->planes[DEFAULT_WIN];
-       ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
-                       EXYNOS_DISPLAY_TYPE_HDMI, &mixer_crtc_ops, ctx);
-       if (IS_ERR(ctx->crtc)) {
+       ctx->crtc.type = EXYNOS_DISPLAY_TYPE_HDMI;
+       ctx->crtc.ops = &mixer_crtc_ops;
+       ret = exynos_drm_crtc_init(&ctx->crtc, drm_dev);
+       if (ret) {
                mixer_ctx_remove(ctx);
-               ret = PTR_ERR(ctx->crtc);
                goto free_ctx;
        }
+       ctx->crtc.base.primary = &ctx->planes[DEFAULT_WIN].base;
 
        return 0;
 
-- 
2.17.1

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