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drivers: staging: fbtft: Fix fb_ssd1306 driver for 128x32 Display #6691

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drivers: staging: fbtft: Fix fb_ssd1306 driver for 128x32 Display #6691

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5f75eb4
drivers: staging: fbtft: Fix fb_ssd1306 driver for 128x32 Display
pawel-soja Feb 27, 2025
2a6655a
remove extra line
pawel-soja Feb 28, 2025
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15 changes: 15 additions & 0 deletions drivers/staging/fbtft/fb_ssd1306.c
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Original file line number Diff line number Diff line change
Expand Up @@ -133,6 +133,19 @@ static void set_addr_win_64x48(struct fbtft_par *par)
write_reg(par, 0x5);
}

static void set_addr_win_128x32(struct fbtft_par *par)
{
/* Set Column Address */
write_reg(par, 0x21);
write_reg(par, 0x00);
write_reg(par, 0x7F);

/* Set Page Address */
write_reg(par, 0x22);
write_reg(par, 0x00);
write_reg(par, 0x03);
}

static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
{
/* Set Lower Column Start Address for Page Addressing Mode */
Expand All @@ -144,6 +157,8 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)

if (par->info->var.xres == 64 && par->info->var.yres == 48)
set_addr_win_64x48(par);
else if (par->info->var.xres == 128 && par->info->var.yres == 32)
set_addr_win_128x32(par);
}

static int blank(struct fbtft_par *par, bool on)
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