drm/panel: ld9040: Add dummy prepare and unprepare routines

This patch adds dummy definition for prepare and unprepare
routines to ld9040 panel driver.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/panel/panel-ld9040.c b/drivers/gpu/drm/panel/panel-ld9040.c
index db1601fdbe2946f581b0ec108057f94f647d1d10..9b40bd05d64d863e2feb36a2c17a44d217b1b658 100644 (file)
--- a/drivers/gpu/drm/panel/panel-ld9040.c
+++ b/drivers/gpu/drm/panel/panel-ld9040.c
@@ -228,6 +228,16 @@ static int ld9040_disable(struct drm_panel *panel)
        return ld9040_power_off(ctx);
 }
 
+static int ld9040_unprepare(struct drm_panel *panel)
+{
+       return 0;
+}
+
+static int ld9040_prepare(struct drm_panel *panel)
+{
+       return 0;
+}
+
 static int ld9040_enable(struct drm_panel *panel)
 {
        struct ld9040 *ctx = panel_to_ld9040(panel);
@@ -273,6 +283,8 @@ static int ld9040_get_modes(struct drm_panel *panel)
 
 static const struct drm_panel_funcs ld9040_drm_funcs = {
        .disable = ld9040_disable,
+       .unprepare = ld9040_unprepare,
+       .prepare = ld9040_prepare,
        .enable = ld9040_enable,
        .get_modes = ld9040_get_modes,
 };