[PATCH RFC 3/7] drm/panel: ilitek-ili9882t: use wrapped MIPI DCS functions

[Dmitry Baryshkov]

Remove conditional code and always use mipi_dsi_dcs_*multi() wrappers to
simplify driver's init/exit code.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/panel/panel-ilitek-ili9882t.c | 30 +++++++++------------------
 1 file changed, 10 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
index 58fc1d799371..e7a74d5443b0 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9882t.c
@@ -402,19 +402,15 @@ static int starry_ili9882t_init(struct ili9882t *ili)
 	mipi_dsi_dcs_write_seq_multi(&ctx, 0x92, 0x22);
 
 	ili9882t_switch_page(&ctx, 0x00);
-	mipi_dsi_dcs_write_seq_multi(&ctx, MIPI_DCS_EXIT_SLEEP_MODE);
-	if (ctx.accum_err)
-		return ctx.accum_err;
+	mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
 
-	msleep(120);
+	mipi_dsi_msleep(&ctx, 120);
 
-	mipi_dsi_dcs_write_seq_multi(&ctx, MIPI_DCS_SET_DISPLAY_ON);
-	if (ctx.accum_err)
-		return ctx.accum_err;
+	mipi_dsi_dcs_set_display_on_multi(&ctx);
 
-	msleep(20);
+	mipi_dsi_msleep(&ctx, 20);
 
-	return 0;
+	return ctx.accum_err;
 };
 
 static inline struct ili9882t *to_ili9882t(struct drm_panel *panel)
@@ -424,20 +420,14 @@ static inline struct ili9882t *to_ili9882t(struct drm_panel *panel)
 
 static int ili9882t_enter_sleep_mode(struct ili9882t *ili)
 {
-	struct mipi_dsi_device *dsi = ili->dsi;
-	int ret;
-
-	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+	struct mipi_dsi_multi_context ctx = { .dsi = ili->dsi };
 
-	ret = mipi_dsi_dcs_set_display_off(dsi);
-	if (ret < 0)
-		return ret;
+	ili->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
 
-	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
-	if (ret < 0)
-		return ret;
+	mipi_dsi_dcs_set_display_off_multi(&ctx);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
 
-	return 0;
+	return ctx.accum_err;
 }
 
 static int ili9882t_disable(struct drm_panel *panel)

-- 
2.39.2