staging: fbtft: Convert int arrays to s16

These arrays use -1, -2, and -3 as initiators for various types of
writes to initialize hardware.

No values are used that conflict with using these arrays as s16
instead of int and reducing overall data is good.

$ size drivers/staging/fbtft/built-in.o*
   text	   data	    bss	    dec	    hex	filename
 116120	  32872	   4152	 153144	  25638	drivers/staging/fbtft/built-in.o.new
 116104	  36344	   6200	 158648	  26bb8	drivers/staging/fbtft/built-in.o.old

Miscellaneous:

o Realign some of the arrays to make reading a bit easier
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fbtft/fb_ili9481.c

@@ -27,7 +27,7 @@
 #define WIDTH		320
 #define HEIGHT		480
 
-static int default_init_sequence[] = {
+static s16 default_init_sequence[] = {
 	/* SLP_OUT - Sleep out */
 	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 50,

drivers/staging/fbtft/fb_ili9486.c

@@ -26,7 +26,7 @@
 #define HEIGHT		480
 
 /* this init sequence matches PiScreen */
-static int default_init_sequence[] = {
+static s16 default_init_sequence[] = {
 	/* Interface Mode Control */
 	-1, 0xb0, 0x0,
 	-1, MIPI_DCS_EXIT_SLEEP_MODE,

drivers/staging/fbtft/fb_s6d02a1.c

@@ -24,7 +24,7 @@
 
 #define DRVNAME "fb_s6d02a1"
 
-static int default_init_sequence[] = {
+static s16 default_init_sequence[] = {
 
 	-1, 0xf0, 0x5a, 0x5a,
 

drivers/staging/fbtft/fb_st7735r.c

@@ -25,7 +25,7 @@
 #define DEFAULT_GAMMA   "0F 1A 0F 18 2F 28 20 22 1F 1B 23 37 00 07 02 10\n" \
 			"0F 1B 0F 17 33 2C 29 2E 30 30 39 3F 00 07 03 10"
 
-static int default_init_sequence[] = {
+static s16 default_init_sequence[] = {
 	-1, MIPI_DCS_SOFT_RESET,
 	-2, 150,                               /* delay */
 

drivers/staging/fbtft/fbtft-core.c

@@ -660,7 +660,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	unsigned int bpp = display->bpp;
 	unsigned int fps = display->fps;
 	int vmem_size, i;
-	int *init_sequence = display->init_sequence;
+	s16 *init_sequence = display->init_sequence;
 	char *gamma = display->gamma;
 	unsigned long *gamma_curves = NULL;
 

drivers/staging/fbtft/fbtft.h

@@ -124,7 +124,7 @@ struct fbtft_display {
 	unsigned int bpp;
 	unsigned int fps;
 	int txbuflen;
-	int *init_sequence;
+	s16 *init_sequence;
 	char *gamma;
 	int gamma_num;
 	int gamma_len;
@@ -229,7 +229,7 @@ struct fbtft_par {
 		int led[16];
 		int aux[16];
 	} gpio;
-	int *init_sequence;
+	s16 *init_sequence;
 	struct {
 		struct mutex lock;
 		unsigned long *curves;

drivers/staging/fbtft/fbtft_device.c

@@ -96,9 +96,9 @@ static unsigned int buswidth = 8;
 module_param(buswidth, uint, 0);
 MODULE_PARM_DESC(buswidth, "Display bus width, used with the custom argument");
 
-static int init[FBTFT_MAX_INIT_SEQUENCE];
+static s16 init[FBTFT_MAX_INIT_SEQUENCE];
 static int init_num;
-module_param_array(init, int, &init_num, 0);
+module_param_array(init, short, &init_num, 0);
 MODULE_PARM_DESC(init, "Init sequence, used with the custom argument");
 
 static unsigned long debug;
@@ -131,7 +131,7 @@ static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par,
 		"D0 00 14 15 13 2C 42 43 4E 09 16 14 18 21\n" \
 		"D0 00 14 15 13 0B 43 55 53 0C 17 14 23 20"
 
-static int cberry28_init_sequence[] = {
+static s16 cberry28_init_sequence[] = {
 	/* turn off sleep mode */
 	-1, MIPI_DCS_EXIT_SLEEP_MODE,
 	-2, 120,
@@ -180,7 +180,7 @@ static int cberry28_init_sequence[] = {
 	-3,
 };
 
-static int hy28b_init_sequence[] = {
+static s16 hy28b_init_sequence[] = {
 	-1, 0x00e7, 0x0010, -1, 0x0000, 0x0001,
 	-1, 0x0001, 0x0100, -1, 0x0002, 0x0700,
 	-1, 0x0003, 0x1030, -1, 0x0004, 0x0000,
@@ -211,7 +211,7 @@ static int hy28b_init_sequence[] = {
 	"04 1F 4 7 7 0 7 7 6 0\n" \
 	"0F 00 1 7 4 0 0 0 6 7"
 
-static int pitft_init_sequence[] = {
+static s16 pitft_init_sequence[] = {
 	-1, MIPI_DCS_SOFT_RESET,
 	-2, 5,
 	-1, MIPI_DCS_SET_DISPLAY_OFF,
@@ -242,7 +242,7 @@ static int pitft_init_sequence[] = {
 	-3
 };
 
-static int waveshare32b_init_sequence[] = {
+static s16 waveshare32b_init_sequence[] = {
 	-1, 0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02,
 	-1, 0xCF, 0x00, 0xC1, 0x30,
 	-1, 0xE8, 0x85, 0x00, 0x78,