diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-05-03 20:21:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-10 11:19:39 +0200 |
| commit | fd4c5961d8193a5bc3e7f8d5f94c9b469c037394 (patch) | |
| tree | dc5877b612d409cb2ce4898a28739ef4b3bb0266 /drivers/staging/fbtft/fb_hx8347d.c | |
| parent | 37667f6e57712cef5652fa67f1cbd1299e204d94 (diff) | |
staging: fbtft: Add support for orientation on Himax HX8347d
Himax HX8347d has non-standard register to control orientation.
Add support for different orientation values.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210503172114.27891-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft/fb_hx8347d.c')
| -rw-r--r-- | drivers/staging/fbtft/fb_hx8347d.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/staging/fbtft/fb_hx8347d.c b/drivers/staging/fbtft/fb_hx8347d.c index 37eaf0862c5b..a9b72a8b42b5 100644 --- a/drivers/staging/fbtft/fb_hx8347d.c +++ b/drivers/staging/fbtft/fb_hx8347d.c @@ -68,9 +68,6 @@ static int init_display(struct fbtft_par *par) mdelay(40); write_reg(par, 0x28, 0x3C); - /* orientation */ - write_reg(par, 0x16, 0x60 | (par->bgr << 3)); - return 0; } @@ -87,6 +84,31 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) write_reg(par, 0x22); } +#define MEM_Y BIT(7) /* MY row address order */ +#define MEM_X BIT(6) /* MX column address order */ +#define MEM_V BIT(5) /* MV row / column exchange */ +#define MEM_L BIT(4) /* ML vertical refresh order */ +#define MEM_BGR (3) /* RGB-BGR Order */ +static int set_var(struct fbtft_par *par) +{ + switch (par->info->var.rotate) { + case 0: + write_reg(par, 0x16, MEM_V | MEM_X | (par->bgr << MEM_BGR)); + break; + case 270: + write_reg(par, 0x16, par->bgr << MEM_BGR); + break; + case 180: + write_reg(par, 0x16, MEM_V | MEM_Y | (par->bgr << MEM_BGR)); + break; + case 90: + write_reg(par, 0x16, MEM_X | MEM_Y | (par->bgr << MEM_BGR)); + break; + } + + return 0; +} + /* * Gamma string format: * VRP0 VRP1 VRP2 VRP3 VRP4 VRP5 PRP0 PRP1 PKP0 PKP1 PKP2 PKP3 PKP4 CGM @@ -144,6 +166,7 @@ static struct fbtft_display display = { .fbtftops = { .init_display = init_display, .set_addr_win = set_addr_win, + .set_var = set_var, .set_gamma = set_gamma, }, }; |