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_s6d02a1.c | 42 +++++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/fbtft/fb_s6d02a1.c 
b/drivers/staging/fbtft/fb_s6d02a1.c
index da85057..3113355 100644
--- a/drivers/staging/fbtft/fb_s6d02a1.c
+++ b/drivers/staging/fbtft/fb_s6d02a1.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <video/mipi_display.h>
 
 #include "fbtft.h"
 
@@ -50,7 +51,7 @@ static int default_init_sequence[] = {
 
        -1, 0xf3, 0x00, 0x00,
 
-       -1, 0x11,
+       -1, MIPI_DCS_EXIT_SLEEP_MODE,
        -2, 50,
 
        -1, 0xf3, 0x00, 0x01,
@@ -79,18 +80,18 @@ static int default_init_sequence[] = {
 
        /* initializing sequence */
 
-       -1, 0x36, 0x08,
+       -1, MIPI_DCS_SET_ADDRESS_MODE, 0x08,
 
-       -1, 0x35, 0x00,
+       -1, MIPI_DCS_SET_TEAR_ON, 0x00,
 
-       -1, 0x3a, 0x05,
+       -1, MIPI_DCS_SET_PIXEL_FORMAT, 0x05,
 
-       /* gamma setting sequence */
-       -1, 0x26, 0x01, /* preset gamma curves, possible values 0x01, 0x02, 
0x04, 0x08 */
+       /* gamma setting - possible values 0x01, 0x02, 0x04, 0x08 */
+       -1, MIPI_DCS_SET_GAMMA_CURVE, 0x01,
 
        -2, 150,
-       -1, 0x29,
-       -1, 0x2c,
+       -1, MIPI_DCS_SET_DISPLAY_ON,
+       -1, MIPI_DCS_WRITE_MEMORY_START,
        /* end marker */
        -3
 
@@ -98,14 +99,13 @@ 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)
@@ -113,7 +113,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int 
ys, int xe, int ye)
 #define MV BIT(5)
 static int set_var(struct fbtft_par *par)
 {
-       /* MADCTL - Memory data access control
+       /* Memory data access control (0x36h)
             RGB/BGR:
                1. Mode selection pin SRGB
                        RGB H/W pin for color filter setting: 0=RGB, 1=BGR
@@ -121,16 +121,20 @@ 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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