This bit is used for video output and logic signal control. So it is better for readability.
Signed-off-by: YoungJun Cho yj44.cho@samsung.com Acked-by: Inki Dae inki.dae@samsung.com Acked-by: Kyungmin Park kyungmin.park@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 77ba961..5cfd251 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -229,6 +229,19 @@ static void fimd_wait_for_vblank(struct exynos_drm_manager *mgr) DRM_DEBUG_KMS("vblank wait timed out.\n"); }
+static void fimd_enable_video_output(struct fimd_context *ctx, int win, + bool enable) +{ + u32 val = readl(ctx->regs + WINCON(win)); + + if (enable) + val |= WINCONx_ENWIN; + else + val &= ~WINCONx_ENWIN; + + writel(val, ctx->regs + WINCON(win)); +} + static void fimd_clear_channel(struct exynos_drm_manager *mgr) { struct fimd_context *ctx = mgr->ctx; @@ -241,9 +254,7 @@ static void fimd_clear_channel(struct exynos_drm_manager *mgr) u32 val = readl(ctx->regs + WINCON(win));
if (val & WINCONx_ENWIN) { - /* wincon */ - val &= ~WINCONx_ENWIN; - writel(val, ctx->regs + WINCON(win)); + fimd_enable_video_output(ctx, win, false);
/* unprotect windows */ if (ctx->driver_data->has_shadowcon) { @@ -746,10 +757,7 @@ static void fimd_win_commit(struct exynos_drm_manager *mgr, int zpos) if (win != 0) fimd_win_set_colkey(ctx, win);
- /* wincon */ - val = readl(ctx->regs + WINCON(win)); - val |= WINCONx_ENWIN; - writel(val, ctx->regs + WINCON(win)); + fimd_enable_video_output(ctx, win, true);
if (ctx->driver_data->has_shadowcon) { val = readl(ctx->regs + SHADOWCON); @@ -790,10 +798,7 @@ static void fimd_win_disable(struct exynos_drm_manager *mgr, int zpos) /* protect windows */ fimd_shadow_protect_win(ctx, win, true);
- /* wincon */ - val = readl(ctx->regs + WINCON(win)); - val &= ~WINCONx_ENWIN; - writel(val, ctx->regs + WINCON(win)); + fimd_enable_video_output(ctx, win, false);
/* unprotect windows */ if (ctx->driver_data->has_shadowcon) {