github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 17:13:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/bridge: samsung-dsim: allow configuring the VIDEO_MODE bit

Browse Source 
The VIDEO_MODE bit of DSIM_CONFIG is hardcoded to BIT(25), but
Exynos7870's DSIM has it in BIT(18) as per downstream kernel sources.

In order to support both, move this bit value to the driver data struct
and define it for every driver compatible. Reference the value from
there instead, in functions wherever required.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Kaustabh Chakraborty 2025-07-06 23:55:40 +05:30 committed by Inki Dae
parent 4d244122dd
commit d6dbefb2fe
No known key found for this signature in database
GPG Key ID: C5601BECE83FF9B6
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/bridge/samsung-dsim.c
View File

@ -87,7 +87,6 @@
*/
#define DSIM_HSE_DISABLE_MODE BIT(23)
#define DSIM_AUTO_MODE BIT(24)
#define DSIM_VIDEO_MODE BIT(25)
#define DSIM_BURST_MODE BIT(26)
#define DSIM_SYNC_INFORM BIT(27)
#define DSIM_EOT_DISABLE BIT(28)
@ -417,6 +416,7 @@ static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 1,
.num_bits_resol = 11,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -444,6 +444,7 @@ static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 1,
.num_bits_resol = 11,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -469,6 +470,7 @@ static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 1,
.num_bits_resol = 11,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -494,6 +496,7 @@ static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 0,
.num_bits_resol = 12,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -519,6 +522,7 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 1,
.num_bits_resol = 12,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -544,6 +548,7 @@ static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = {
.wait_for_hdr_fifo = 1,
.wait_for_reset = 0,
.num_bits_resol = 12,
.video_mode_bit = 25,
.esc_clken_bit = 28,
.byte_clken_bit = 24,
.tx_req_hsclk_bit = 31,
@ -952,7 +957,7 @@ static int samsung_dsim_init_link(struct samsung_dsim *dsi)
* mode, otherwise it will support command mode.
*/
if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
reg |= DSIM_VIDEO_MODE;
reg |= BIT(driver_data->video_mode_bit);
/*
* The user manual describes that following bits are ignored in

1
include/drm/bridge/samsung-dsim.h
View File

@ -64,6 +64,7 @@ struct samsung_dsim_driver_data {
unsigned int wait_for_hdr_fifo;
unsigned int wait_for_reset;
unsigned int num_bits_resol;
unsigned int video_mode_bit;
unsigned int esc_clken_bit;
unsigned int byte_clken_bit;
unsigned int tx_req_hsclk_bit;