drm/exynos: remove color bar pattern operation.

This patch removes color bar pattern register because we don't use the register anymore.
because it doesn't support color bar feature for writeback operation.
camera driver only supports color bar feature. but IPP doesn't support camera driver.
Signed-off-by: NJoongMock Shin <jmock.shin@samsung.com>
Signed-off-by: NEunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_fimc.c

@@ -163,17 +163,14 @@ struct fimc_context {
 	bool	suspended;
 };
 
-static void fimc_sw_reset(struct fimc_context *ctx, bool pattern)
+static void fimc_sw_reset(struct fimc_context *ctx)
 {
 	u32 cfg;
 
-	DRM_DEBUG_KMS("%s:pattern[%d]\n", __func__, pattern);
+	DRM_DEBUG_KMS("%s\n", __func__);
 
 	cfg = fimc_read(EXYNOS_CISRCFMT);
 	cfg |= EXYNOS_CISRCFMT_ITU601_8BIT;
-	if (pattern)
-		cfg |= EXYNOS_CIGCTRL_TESTPATTERN_COLOR_BAR;
-
 	fimc_write(cfg, EXYNOS_CISRCFMT);
 
 	/* s/w reset */
@@ -1536,7 +1533,7 @@ static int fimc_ippdrv_reset(struct device *dev)
 	DRM_DEBUG_KMS("%s\n", __func__);
 
 	/* reset h/w block */
-	fimc_sw_reset(ctx, false);
+	fimc_sw_reset(ctx);
 
 	/* reset scaler capability */
 	memset(&ctx->sc, 0x0, sizeof(ctx->sc));