[PATCH] drm/sun4i: Eliminate pointless on stack copy of drm_display_info

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Just use a pointer to the display_info rather than make a copy
on stack.

Cc: Maxime Ripard <maxime.ripard at bootlin.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/sun4i/sun4i_tcon.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index fa92e992a282..7ac46483ee78 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -482,7 +482,7 @@ static void sun4i_tcon0_mode_set_rgb(struct sun4i_tcon *tcon,
 				     const struct drm_display_mode *mode)
 {
 	struct drm_connector *connector = sun4i_tcon_get_connector(encoder);
-	struct drm_display_info display_info = connector->display_info;
+	const struct drm_display_info *info = &connector->display_info;
 	unsigned int bp, hsync, vsync;
 	u8 clk_delay;
 	u32 val = 0;
@@ -543,7 +543,7 @@ static void sun4i_tcon0_mode_set_rgb(struct sun4i_tcon *tcon,
 	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
 		val |= SUN4I_TCON0_IO_POL_VSYNC_POSITIVE;
 
-	if (display_info.bus_flags & DRM_BUS_FLAG_DE_LOW)
+	if (info->bus_flags & DRM_BUS_FLAG_DE_LOW)
 		val |= SUN4I_TCON0_IO_POL_DE_NEGATIVE;
 
 	/*
@@ -561,10 +561,10 @@ static void sun4i_tcon0_mode_set_rgb(struct sun4i_tcon *tcon,
 	 * Following code is a way to avoid quirks all around TCON
 	 * and DOTCLOCK drivers.
 	 */
-	if (display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE)
+	if (info->bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE)
 		clk_set_phase(tcon->dclk, 240);
 
-	if (display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE)
+	if (info->bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE)
 		clk_set_phase(tcon->dclk, 0);
 
 	regmap_update_bits(tcon->regs, SUN4I_TCON0_IO_POL_REG,
-- 
2.19.2