diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 36d42f17331d..de00925c94e8 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -34,7 +34,7 @@
 
 #define DSI_RESET_TOGGLE_DELAY_MS 20
 
-static int dsi_populate_dsc_params(struct drm_dsc_config *dsc);
+static int dsi_populate_dsc_params(struct msm_dsi_host *msm_host, struct drm_dsc_config *dsc);
 
 static int dsi_get_version(const void __iomem *base, u32 *major, u32 *minor)
 {
@@ -909,6 +909,7 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 	u32 va_end = va_start + mode->vdisplay;
 	u32 hdisplay = mode->hdisplay;
 	u32 wc;
+	int ret;
 
 	DBG("");
 
@@ -944,7 +945,9 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi)
 		/* we do the calculations for dsc parameters here so that
 		 * panel can use these parameters
 		 */
-		dsi_populate_dsc_params(dsc);
+		ret = dsi_populate_dsc_params(msm_host, dsc);
+		if (ret)
+			return;
 
 		/* Divide the display by 3 but keep back/font porch and
 		 * pulse width same
@@ -1748,9 +1751,15 @@ static char bpg_offset[DSC_NUM_BUF_RANGES] = {
 	2, 0, 0, -2, -4, -6, -8, -8, -8, -10, -10, -12, -12, -12, -12
 };
 
-static int dsi_populate_dsc_params(struct drm_dsc_config *dsc)
+static int dsi_populate_dsc_params(struct msm_dsi_host *msm_host, struct drm_dsc_config *dsc)
 {
 	int i;
+	u16 bpp = dsc->bits_per_pixel >> 4;
+
+	if (dsc->bits_per_pixel & 0xf) {
+		DRM_DEV_ERROR(&msm_host->pdev->dev, "DSI does not support fractional bits_per_pixel\n");
+		return -EINVAL;
+	}
 
 	dsc->rc_model_size = 8192;
 	dsc->first_line_bpg_offset = 12;
@@ -1771,8 +1780,8 @@ static int dsi_populate_dsc_params(struct drm_dsc_config *dsc)
 		dsc->rc_range_params[i].range_bpg_offset = bpg_offset[i];
 	}
 
-	dsc->initial_offset = 6144; /* Not bpp 12 */
-	if (dsc->bits_per_pixel != 8)
+	dsc->initial_offset = 6144;		/* Not bpp 12 */
+	if (bpp != 8)
 		dsc->initial_offset = 2048;	/* bpp = 12 */
 
 	if (dsc->bits_per_component <= 10)