diff options
Diffstat (limited to 'drivers/staging/fbtft/fb_ssd1331.c')
-rw-r--r-- | drivers/staging/fbtft/fb_ssd1331.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c index da7464f90e37..5bb741046c85 100644 --- a/drivers/staging/fbtft/fb_ssd1331.c +++ b/drivers/staging/fbtft/fb_ssd1331.c @@ -29,24 +29,24 @@ static int init_display(struct fbtft_par *par) write_reg(par, 0xae); /* Display Off */ write_reg(par, 0xa0, 0x70 | (par->bgr << 2)); /* Set Colour Depth */ - write_reg(par, 0x72); // RGB colour + write_reg(par, 0x72); /* RGB colour */ write_reg(par, 0xa1, 0x00); /* Set Display Start Line */ write_reg(par, 0xa2, 0x00); /* Set Display Offset */ write_reg(par, 0xa4); /* NORMALDISPLAY */ - write_reg(par, 0xa8, 0x3f); // Set multiplex - write_reg(par, 0xad, 0x8e); // Set master - // write_reg(par, 0xb0, 0x0b); // Set power mode - write_reg(par, 0xb1, 0x31); // Precharge - write_reg(par, 0xb3, 0xf0); // Clock div - write_reg(par, 0x8a, 0x64); // Precharge A - write_reg(par, 0x8b, 0x78); // Precharge B - write_reg(par, 0x8c, 0x64); // Precharge C - write_reg(par, 0xbb, 0x3a); // Precharge level - write_reg(par, 0xbe, 0x3e); // vcomh - write_reg(par, 0x87, 0x06); // Master current - write_reg(par, 0x81, 0x91); // Contrast A - write_reg(par, 0x82, 0x50); // Contrast B - write_reg(par, 0x83, 0x7d); // Contrast C + write_reg(par, 0xa8, 0x3f); /* Set multiplex */ + write_reg(par, 0xad, 0x8e); /* Set master */ + /* write_reg(par, 0xb0, 0x0b); Set power mode */ + write_reg(par, 0xb1, 0x31); /* Precharge */ + write_reg(par, 0xb3, 0xf0); /* Clock div */ + write_reg(par, 0x8a, 0x64); /* Precharge A */ + write_reg(par, 0x8b, 0x78); /* Precharge B */ + write_reg(par, 0x8c, 0x64); /* Precharge C */ + write_reg(par, 0xbb, 0x3a); /* Precharge level */ + write_reg(par, 0xbe, 0x3e); /* vcomh */ + write_reg(par, 0x87, 0x06); /* Master current */ + write_reg(par, 0x81, 0x91); /* Contrast A */ + write_reg(par, 0x82, 0x50); /* Contrast B */ + write_reg(par, 0x83, 0x7d); /* Contrast C */ write_reg(par, 0xaf); /* Set Sleep Mode Display On */ return 0; @@ -69,9 +69,8 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) { va_start(args, len); - for (i = 0; i < len; i++) { + for (i = 0; i < len; i++) buf[i] = (u8)va_arg(args, unsigned int); - } va_end(args); fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, u8, buf, len, "%s: ", __func__); } @@ -84,20 +83,21 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...) ret = par->fbtftops.write(par, par->buf, sizeof(u8)); if (ret < 0) { va_end(args); - dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); + dev_err(par->info->device, + "write() failed and returned %d\n", ret); return; } len--; if (len) { i = len; - while (i--) { + while (i--) *buf++ = (u8)va_arg(args, unsigned int); - } ret = par->fbtftops.write(par, par->buf, len * (sizeof(u8))); if (ret < 0) { va_end(args); - dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); + dev_err(par->info->device, + "write() failed and returned %d\n", ret); return; } } |