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- From 538e97d56bae968580ac046389243383b7559ab9 Mon Sep 17 00:00:00 2001
- From: Michel Stempin <michel.stempin@wanadoo.fr>
- Date: Tue, 19 Mar 2019 22:26:56 +0100
- Subject: [PATCH 9/9] rotated screen 90 degrees CW
- Signed-off-by: Michel Stempin <michel.stempin@wanadoo.fr>
- ---
- arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts | 2 +-
- drivers/staging/fbtft/fb_st7789v.c | 13 ++++++++++---
- drivers/staging/fbtft/fbtft-core.c | 8 +++++++-
- 3 files changed, 18 insertions(+), 5 deletions(-)
- diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
- index 69f52af..e966993 100644
- --- a/drivers/staging/fbtft/fb_st7789v.c
- +++ b/drivers/staging/fbtft/fb_st7789v.c
- @@ -150,9 +150,6 @@ static int init_display(struct fbtft_par *par)
- */
- write_reg(par, PWCTRL1, 0xA4, 0xA1);
-
- - /* Ystart at 80 , Yend at 240 */
- - write_reg(par, 0x2B, 0x00, 0x50, 0x00, 0xF0);
- -
- /* Display Inversion of colors */
- write_reg(par, 0x21);
-
- @@ -190,6 +187,16 @@ static int set_var(struct fbtft_par *par)
- return -EINVAL;
- }
- write_reg(par, MIPI_DCS_SET_ADDRESS_MODE, madctl_par);
- +
- + // All offset operations are done after in fbtft_set_addr_win, not here
- + /* Ystart at 0 , Yend at 239 */
- + //write_reg(par, 0x2B, 0x00, 0x50, 0x00, 0xEF);
- + write_reg(par, 0x2B, 0x00, 0x00, 0x00, 0xEF);
- + //write_reg(par, 0x2B, 0x00, 0x50, 0x01, 0x3F);
- + /* Xstart at 80 , Xend at 319 */
- + write_reg(par, 0x2A, 0x00, 0x50, 0x01, 0x3F);
- + //write_reg(par, 0x2A, 0x00, 0x50, 0x00, 0xEF);
- +
- return 0;
- }
-
- diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
- index 6d0363d..fbb0934 100644
- --- a/drivers/staging/fbtft/fbtft-core.c
- +++ b/drivers/staging/fbtft/fbtft-core.c
- @@ -391,9 +391,15 @@ static void fbtft_update_display(struct fbtft_par *par, unsigned int start_line,
- fbtft_par_dbg(DEBUG_UPDATE_DISPLAY, par, "%s(start_line=%u, end_line=%u)\n",
- __func__, start_line, end_line);
-
- - if (par->fbtftops.set_addr_win)
- + // Carefull removing this. this will work only if the full screen is updated at once
- + /*if (par->fbtftops.set_addr_win){
- par->fbtftops.set_addr_win(par, 0, start_line,
- par->info->var.xres - 1, end_line);
- + }*/
- + if (par->fbtftops.set_addr_win){
- + par->fbtftops.set_addr_win(par, 80, start_line,
- + 320 - 1, end_line);
- + }
-
- offset = start_line * par->info->fix.line_length;
- len = (end_line - start_line + 1) * par->info->fix.line_length;
- --
- 2.7.4
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