From 9580893255e3736975f5638d4dde842c9b2d6992 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Sun, 20 Dec 2015 20:35:57 +0200
Subject: [PATCH] staging: fbtft: Use standard MIPI DCS command defines for
 hx8357d

This patch makes use of the standard MIPI Display Command Set to remove
some of the magic constants found in source code.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/fbtft/fb_hx8357d.c | 38 ++++++++++++++----------------
 1 file changed, 18 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/fbtft/fb_hx8357d.c b/drivers/staging/fbtft/fb_hx8357d.c
index a381dbcf5535..89be9ec2e347 100644
--- a/drivers/staging/fbtft/fb_hx8357d.c
+++ b/drivers/staging/fbtft/fb_hx8357d.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 #include "fb_hx8357d.h"
@@ -35,7 +36,7 @@ static int init_display(struct fbtft_par *par)
 	par->fbtftops.reset(par);
 
 	/* Reset things like Gamma */
-	write_reg(par, HX8357B_SWRESET);
+	write_reg(par, MIPI_DCS_SOFT_RESET);
 	usleep_range(5000, 7000);
 
 	/* setextc */
@@ -116,22 +117,22 @@ static int init_display(struct fbtft_par *par)
 		0x01);
 
 	/* 16 bit */
-	write_reg(par, HX8357_COLMOD, 0x55);
+	write_reg(par, MIPI_DCS_SET_PIXEL_FORMAT, 0x55);
 
-	write_reg(par, HX8357_MADCTL, 0xC0);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, 0xC0);
 
 	/* TE off */
-	write_reg(par, HX8357_TEON, 0x00);
+	write_reg(par, MIPI_DCS_SET_TEAR_ON, 0x00);
 
 	/* tear line */
-	write_reg(par, HX8357_TEARLINE, 0x00, 0x02);
+	write_reg(par, MIPI_DCS_SET_TEAR_SCANLINE, 0x00, 0x02);
 
 	/* Exit Sleep */
-	write_reg(par, HX8357_SLPOUT);
+	write_reg(par, MIPI_DCS_EXIT_SLEEP_MODE);
 	msleep(150);
 
 	/* display on */
-	write_reg(par, HX8357_DISPON);
+	write_reg(par, MIPI_DCS_SET_DISPLAY_ON);
 	usleep_range(5000, 7000);
 
 	return 0;
@@ -139,18 +140,15 @@ static int init_display(struct fbtft_par *par)
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-	/* Column addr set */
-	write_reg(par, HX8357_CASET,
-		xs >> 8, xs & 0xff,  /* XSTART */
-		xe >> 8, xe & 0xff); /* XEND */
-
-	/* Row addr set */
-	write_reg(par, HX8357_PASET,
-		ys >> 8, ys & 0xff,  /* YSTART */
-		ye >> 8, ye & 0xff); /* YEND */
-
-	/* write to RAM */
-	write_reg(par, HX8357_RAMWR);
+	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+		  xs >> 8, xs & 0xff,  /* XSTART */
+		  xe >> 8, xe & 0xff); /* XEND */
+
+	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+		  ys >> 8, ys & 0xff,  /* YSTART */
+		  ye >> 8, ye & 0xff); /* YEND */
+
+	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 #define HX8357D_MADCTL_MY  0x80
@@ -182,7 +180,7 @@ static int set_var(struct fbtft_par *par)
 	val |= (par->bgr ? HX8357D_MADCTL_RGB : HX8357D_MADCTL_BGR);
 
 	/* Memory Access Control */
-	write_reg(par, HX8357_MADCTL, val);
+	write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, val);
 
 	return 0;
 }
-- 
2.34.1