drm/rockchip/dsi: dw-mipi: correct the coding style

correct the coding style, according the checkpatch scripts
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1487577744-2855-4-git-send-email-zyw@rock-chips.com

drivers/gpu/drm/rockchip/dw-mipi-dsi.c

@@ -158,7 +158,6 @@
 #define LPRX_TO_CNT(p)			((p) & 0xffff)
 
 #define DSI_BTA_TO_CNT			0x8c
-
 #define DSI_LPCLK_CTRL			0x94
 #define AUTO_CLKLANE_CTRL		BIT(1)
 #define PHY_TXREQUESTCLKHS		BIT(0)
@@ -224,11 +223,11 @@
 
 #define HSFREQRANGE_SEL(val)	(((val) & 0x3f) << 1)
 
-#define INPUT_DIVIDER(val)	((val - 1) & 0x7f)
+#define INPUT_DIVIDER(val)	(((val) - 1) & 0x7f)
 #define LOW_PROGRAM_EN		0
 #define HIGH_PROGRAM_EN		BIT(7)
-#define LOOP_DIV_LOW_SEL(val)	((val - 1) & 0x1f)
-#define LOOP_DIV_HIGH_SEL(val)	(((val - 1) >> 5) & 0x1f)
+#define LOOP_DIV_LOW_SEL(val)	(((val) - 1) & 0x1f)
+#define LOOP_DIV_HIGH_SEL(val)	((((val) - 1) >> 5) & 0x1f)
 #define PLL_LOOP_DIV_EN		BIT(5)
 #define PLL_INPUT_DIV_EN	BIT(4)
 
@@ -370,6 +369,7 @@ static inline struct dw_mipi_dsi *encoder_to_dsi(struct drm_encoder *encoder)
 {
 	return container_of(encoder, struct dw_mipi_dsi, encoder);
 }
+
 static inline void dsi_write(struct dw_mipi_dsi *dsi, u32 reg, u32 val)
 {
 	writel(val, dsi->base + reg);
@@ -493,7 +493,6 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
 	dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
 				     PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
 
-
 	ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS,
 				 val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US);
 	if (ret < 0) {
@@ -1024,14 +1023,14 @@ dw_mipi_dsi_encoder_atomic_check(struct drm_encoder *encoder,
 	return 0;
 }
 
-static struct drm_encoder_helper_funcs
+static const struct drm_encoder_helper_funcs
 dw_mipi_dsi_encoder_helper_funcs = {
 	.enable = dw_mipi_dsi_encoder_enable,
 	.disable = dw_mipi_dsi_encoder_disable,
 	.atomic_check = dw_mipi_dsi_encoder_atomic_check,
 };
 
-static struct drm_encoder_funcs dw_mipi_dsi_encoder_funcs = {
+static const struct drm_encoder_funcs dw_mipi_dsi_encoder_funcs = {
 	.destroy = drm_encoder_cleanup,
 };
 
@@ -1067,7 +1066,7 @@ static void dw_mipi_dsi_drm_connector_destroy(struct drm_connector *connector)
 	drm_connector_cleanup(connector);
 }
 
-static struct drm_connector_funcs dw_mipi_dsi_atomic_connector_funcs = {
+static const struct drm_connector_funcs dw_mipi_dsi_atomic_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.destroy = dw_mipi_dsi_drm_connector_destroy,