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 <pl...@plaes.org>
---
 drivers/staging/fbtft/fb_st7735r.c | 42 ++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/fbtft/fb_st7735r.c 
b/drivers/staging/fbtft/fb_st7735r.c
index a92b0d0..c5e51fe 100644
--- a/drivers/staging/fbtft/fb_st7735r.c
+++ b/drivers/staging/fbtft/fb_st7735r.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -25,12 +26,10 @@
                        "0F 1B 0F 17 33 2C 29 2E 30 30 39 3F 00 07 03 10"
 
 static int default_init_sequence[] = {
-       /* SWRESET - Software reset */
-       -1, 0x01,
+       -1, MIPI_DCS_SOFT_RESET,
        -2, 150,                               /* delay */
 
-       /* SLPOUT - Sleep out & booster on */
-       -1, 0x11,
+       -1, MIPI_DCS_EXIT_SLEEP_MODE,
        -2, 500,                               /* delay */
 
        /* FRMCTR1 - frame rate control: normal mode
@@ -71,18 +70,14 @@ static int default_init_sequence[] = {
        /* VMCTR1 - Power Control */
        -1, 0xC5, 0x0E,
 
-       /* INVOFF - Display inversion off */
-       -1, 0x20,
+       -1, MIPI_DCS_EXIT_INVERT_MODE,
 
-       /* COLMOD - Interface pixel format */
-       -1, 0x3A, 0x05,
+       -1, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT,
 
-       /* DISPON - Display On */
-       -1, 0x29,
+       -1, MIPI_DCS_SET_DISPLAY_ON,
        -2, 100,                               /* delay */
 
-       /* NORON - Partial off (Normal) */
-       -1, 0x13,
+       -1, MIPI_DCS_ENTER_NORMAL_MODE,
        -2, 10,                               /* delay */
 
        /* end marker */
@@ -91,14 +86,13 @@ static int default_init_sequence[] = {
 
 static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 {
-       /* Column address */
-       write_reg(par, 0x2A, xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
+       write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
+                 xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
 
-       /* Row address */
-       write_reg(par, 0x2B, ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
+       write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
+                 ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
 
-       /* Memory write */
-       write_reg(par, 0x2C);
+       write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
 }
 
 #define MY BIT(7)
@@ -114,16 +108,20 @@ static int set_var(struct fbtft_par *par)
                RGB-BGR ORDER color filter panel: 0=RGB, 1=BGR */
        switch (par->info->var.rotate) {
        case 0:
-               write_reg(par, 0x36, MX | MY | (par->bgr << 3));
+               write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+                         MX | MY | (par->bgr << 3));
                break;
        case 270:
-               write_reg(par, 0x36, MY | MV | (par->bgr << 3));
+               write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+                         MY | MV | (par->bgr << 3));
                break;
        case 180:
-               write_reg(par, 0x36, par->bgr << 3);
+               write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+                         par->bgr << 3);
                break;
        case 90:
-               write_reg(par, 0x36, MX | MV | (par->bgr << 3));
+               write_reg(par, MIPI_DCS_SET_ADDRESS_MODE,
+                         MX | MV | (par->bgr << 3));
                break;
        }
 
-- 
2.6.4

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