diff options
Diffstat (limited to 'drivers/staging/fbtft/fb_hx8340bn.c')
| -rw-r--r-- | drivers/staging/fbtft/fb_hx8340bn.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c index 3939502f2c81..54528aa0c0ef 100644 --- a/drivers/staging/fbtft/fb_hx8340bn.c +++ b/drivers/staging/fbtft/fb_hx8340bn.c @@ -4,7 +4,7 @@ * This display uses 9-bit SPI: Data/Command bit + 8 data bits * For platforms that doesn't support 9-bit, the driver is capable * of emulating this using 8-bit transfer. - * This is done by transfering eight 9-bit words in 9 bytes. + * This is done by transferring eight 9-bit words in 9 bytes. * * Copyright (C) 2013 Noralf Tronnes * @@ -47,8 +47,6 @@ MODULE_PARM_DESC(emulate, "Force emulation in 9-bit mode"); static int init_display(struct fbtft_par *par) { - fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__); - par->fbtftops.reset(par); /* BTL221722-276L startup sequence, from datasheet */ @@ -108,11 +106,8 @@ static int init_display(struct fbtft_par *par) return 0; } -void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) +static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) { - fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par, - "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye); - write_reg(par, FBTFT_CASET, 0x00, xs, 0x00, xe); write_reg(par, FBTFT_RASET, 0x00, ys, 0x00, ye); write_reg(par, FBTFT_RAMWR); @@ -120,8 +115,6 @@ void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) static int set_var(struct fbtft_par *par) { - fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__); - /* MADCTL - Memory data access control */ /* RGB/BGR can be set with H/W pin SRGB and MADCTL BGR bit */ #define MY (1 << 7) @@ -129,7 +122,7 @@ static int set_var(struct fbtft_par *par) #define MV (1 << 5) switch (par->info->var.rotate) { case 0: - write_reg(par, 0x36, (par->bgr << 3)); + write_reg(par, 0x36, par->bgr << 3); break; case 270: write_reg(par, 0x36, MX | MV | (par->bgr << 3)); @@ -156,14 +149,12 @@ static int set_var(struct fbtft_par *par) static int set_gamma(struct fbtft_par *par, unsigned long *curves) { unsigned long mask[] = { - 0b1111, 0b1111, 0b11111, 0b1111, 0b1111, 0b1111, 0b11111, - 0b111, 0b111, 0b111, 0b111, 0b111, 0b111, 0b11, 0b11, - 0b1111, 0b1111, 0b11111, 0b1111, 0b1111, 0b1111, 0b11111, - 0b111, 0b111, 0b111, 0b111, 0b111, 0b111, 0b0, 0b0 }; + 0x0f, 0x0f, 0x1f, 0x0f, 0x0f, 0x0f, 0x1f, 0x07, 0x07, 0x07, + 0x07, 0x07, 0x07, 0x03, 0x03, 0x0f, 0x0f, 0x1f, 0x0f, 0x0f, + 0x0f, 0x1f, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x00, 0x00, + }; int i, j; - fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__); - /* apply mask */ for (i = 0; i < par->gamma.num_curves; i++) for (j = 0; j < par->gamma.num_values; j++) |