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drm/msm/dsi: Pass DSC params to drm_panel

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When DSC is enabled, we need to get the DSC parameters from the panel
driver, so add a dsc parameter in panel to fetch and pass DSC
configuration for DSI panels to DPU encoder, which will enable and
then configure DSC hardware blocks accordingly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/480910/
Link: https://lore.kernel.org/r/20220406094031.1027376-3-vkoul@kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Vinod Koul 2022-04-06 15:10:19 +05:30 committed by Dmitry Baryshkov
parent b9080324d6
commit 0f40ba48de
7 changed files with 45 additions and 0 deletions
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2
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
View File

@ -27,6 +27,7 @@
* based on num_of_h_tiles
* @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
* used instead of panel TE in cmd mode panels
* @dsc: DSC configuration data for DSC-enabled displays
*/
struct msm_display_info {
int intf_type;
@ -34,6 +35,7 @@ struct msm_display_info {
uint32_t num_of_h_tiles;
uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
bool is_te_using_watchdog_timer;
struct msm_display_dsc_config *dsc;
};
/**

2
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
View File

@ -584,6 +584,8 @@ static int _dpu_kms_initialize_dsi(struct drm_device *dev,
MSM_DISPLAY_CAP_CMD_MODE :
MSM_DISPLAY_CAP_VID_MODE;
info.dsc = msm_dsi_get_dsc_config(priv->dsi[i]);
if (msm_dsi_is_bonded_dsi(priv->dsi[i]) && priv->dsi[other]) {
rc = msm_dsi_modeset_init(priv->dsi[other], dev, encoder);
if (rc) {

5
drivers/gpu/drm/msm/dsi/dsi.c
View File

@ -21,6 +21,11 @@ bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi)
return !(host_flags & MIPI_DSI_MODE_VIDEO);
}
struct msm_display_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{
return msm_dsi_host_get_dsc_config(msm_dsi->host);
}
static int dsi_get_phy(struct msm_dsi *msm_dsi)
{
struct platform_device *pdev = msm_dsi->pdev;

1
drivers/gpu/drm/msm/dsi/dsi.h
View File

@ -152,6 +152,7 @@ int dsi_calc_clk_rate_v2(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
int dsi_calc_clk_rate_6g(struct msm_dsi_host *msm_host, bool is_bonded_dsi);
void msm_dsi_host_snapshot(struct msm_disp_state *disp_state, struct mipi_dsi_host *host);
void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host);
struct msm_display_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host);
/* dsi phy */
struct msm_dsi_phy;

22
drivers/gpu/drm/msm/dsi/dsi_host.c
View File

@ -2061,9 +2061,24 @@ int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
struct drm_panel *panel;
int ret;
msm_host->dev = dev;
panel = msm_dsi_host_get_panel(&msm_host->base);
if (!IS_ERR(panel) && panel->dsc) {
struct msm_display_dsc_config *dsc = msm_host->dsc;
if (!dsc) {
dsc = devm_kzalloc(&msm_host->pdev->dev, sizeof(*dsc), GFP_KERNEL);
if (!dsc)
return -ENOMEM;
dsc->drm = panel->dsc;
msm_host->dsc = dsc;
}
}
ret = cfg_hnd->ops->tx_buf_alloc(msm_host, SZ_4K);
if (ret) {
pr_err("%s: alloc tx gem obj failed, %d\n", __func__, ret);
@ -2628,3 +2643,10 @@ void msm_dsi_host_test_pattern_en(struct mipi_dsi_host *host)
dsi_write(msm_host, REG_DSI_TEST_PATTERN_GEN_CMD_STREAM0_TRIGGER,
DSI_TEST_PATTERN_GEN_CMD_STREAM0_TRIGGER_SW_TRIGGER);
}
struct msm_display_dsc_config *msm_dsi_host_get_dsc_config(struct mipi_dsi_host *host)
{
struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
return msm_host->dsc;
}

6
drivers/gpu/drm/msm/msm_drv.h
View File

@ -299,6 +299,7 @@ void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi
bool msm_dsi_is_cmd_mode(struct msm_dsi *msm_dsi);
bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi);
bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi);
struct msm_display_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi);
#else
static inline void __init msm_dsi_register(void)
{
@ -327,6 +328,11 @@ static inline bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi)
{
return false;
}
static inline struct msm_display_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi)
{
return NULL;
}
#endif
#ifdef CONFIG_DRM_MSM_DP

7
include/drm/drm_panel.h
View File

@ -179,6 +179,13 @@ struct drm_panel {
* Panel entry in registry.
*/
struct list_head list;
/**
* @dsc:
*
* Panel DSC pps payload to be sent
*/
struct drm_dsc_config *dsc;
};
void drm_panel_init(struct drm_panel *panel, struct device *dev,