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tegra132: Set dc to resize the difference between framebuffer and panel 

Scale framebuffer resolution to panel resolution.

BRANCH=none
BUG=chrome-os-partner:31936
TEST=build and test on ryu

Change-Id: Idb19f5871605e878ea380cc8f701a377350681fb
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d2f08a704fe3a7be1e0448e4ed864c69b50d6838
Original-Change-Id: I5ac01539da3712cd6afdb8d08513da399ace0f92
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/229494
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9522
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Jimmy Zhang 2014-11-13 18:17:54 -08:00 committed by Patrick Georgi
parent a11eca4941
commit 93147b5ed1
2 changed files with 16 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/nvidia/tegra/dc.h
View File

@ -488,6 +488,8 @@ enum {
};
/* DC_WIN_DDA_INCREMENT 0x709 */
#define DDA_INC(prescaled_size, post_scaled_size) \
(((prescaled_size) - 1) * 0x1000 / ((post_scaled_size) - 1))
#define H_DDA_INC(x) (((x) & 0xffff) << 0)
#define V_DDA_INC(x) (((x) & 0xffff) << 16)

23
src/soc/nvidia/tegra132/display.c
View File

@ -82,7 +82,7 @@ static void print_mode(const struct soc_nvidia_tegra132_config *config)
if (config) {
int refresh = tegra_calc_refresh(config);
printk(BIOS_ERR,
"MODE:%dx%d@%d.%03uHz pclk=%d\n",
"Panel Mode: %dx%d@%d.%03uHz pclk=%d\n",
config->xres, config->yres,
refresh / 1000, refresh % 1000,
config->pixel_clock);
@ -164,17 +164,21 @@ static void update_window(const struct soc_nvidia_tegra132_config *config)
WRITEL(WINDOW_A_SELECT, &disp_ctrl->cmd.disp_win_header);
WRITEL(((config->yres << 16) | config->xres), &disp_ctrl->win.size);
WRITEL(((config->yres << 16) |
(config->xres * config->framebuffer_bits_per_pixel / 8)),
WRITEL(((config->display_yres << 16) |
(config->display_xres *
config->framebuffer_bits_per_pixel / 8)),
&disp_ctrl->win.prescaled_size);
val = ALIGN_UP((config->xres * config->framebuffer_bits_per_pixel / 8),
64);
val = ALIGN_UP((config->display_xres *
config->framebuffer_bits_per_pixel / 8), 64);
WRITEL(val, &disp_ctrl->win.line_stride);
WRITEL(config->color_depth, &disp_ctrl->win.color_depth);
WRITEL(COLOR_BLACK, &disp_ctrl->disp.blend_background_color);
WRITEL((V_DDA_INC(0x1000) | H_DDA_INC(0x1000)),
WRITEL(((DDA_INC(config->display_yres, config->yres) << 16) |
DDA_INC(config->display_xres, config->xres)),
&disp_ctrl->win.dda_increment);
WRITEL(DISP_CTRL_MODE_C_DISPLAY, &disp_ctrl->cmd.disp_cmd);
@ -247,7 +251,8 @@ void display_startup(device_t dev)
}
if (framebuffer_size_mb == 0){
framebuffer_size_mb = ALIGN_UP(config->xres * config->yres *
framebuffer_size_mb = ALIGN_UP(config->display_xres *
config->display_yres *
(config->framebuffer_bits_per_pixel / 8), MiB)/MiB;
}
@ -299,11 +304,11 @@ void display_startup(device_t dev)
*/
struct edid edid;
/* Align bytes_per_line to 64 bytes as required by dc */
edid.bytes_per_line = ALIGN_UP((config->xres *
edid.bytes_per_line = ALIGN_UP((config->display_xres *
config->framebuffer_bits_per_pixel / 8), 64);
edid.x_resolution = edid.bytes_per_line /
(config->framebuffer_bits_per_pixel / 8);
edid.y_resolution = config->yres;
edid.y_resolution = config->display_yres;
edid.framebuffer_bits_per_pixel = config->framebuffer_bits_per_pixel;
printk(BIOS_INFO, "%s: bytes_per_line: %d, bits_per_pixel: %d\n "