"auo,kd101n80-45na" requires the panel's IOVDD take precedence over MIPI DATA. Otherwise there is a risk of leakage.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com Change-Id: I2da6179dea7e15bc5a53fe36db200b6c04f4d551 --- drivers/gpu/drm/mediatek/mtk_dsi.c | 28 ++++++++++++++++++++++------ 1 file changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 93b40c245f00..9fff0c483139 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -24,7 +24,7 @@ #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> #include <drm/drm_simple_kms_helper.h> - +#include <drm/panel_boe_tv101wum_nl6.h> #include "mtk_disp_drv.h" #include "mtk_drm_ddp_comp.h"
@@ -185,6 +185,7 @@ struct mtk_dsi { struct drm_bridge bridge; struct drm_bridge *next_bridge; struct drm_connector *connector; + struct drm_panel *panel; struct phy *phy;
void __iomem *regs; @@ -619,10 +620,16 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) dsi->data_rate = DIV_ROUND_UP_ULL(dsi->vm.pixelclock * bit_per_pixel, dsi->lanes);
+ if (dsi->panel) { + if (panel_prepare_power(dsi->panel)) { + DRM_INFO("can't prepare power the panel\n"); + goto err_refcount; + } + } ret = clk_set_rate(dsi->hs_clk, dsi->data_rate); if (ret < 0) { dev_err(dev, "Failed to set data rate: %d\n", ret); - goto err_refcount; + goto err_prepare_power; }
phy_power_on(dsi->phy); @@ -665,6 +672,11 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi) clk_disable_unprepare(dsi->engine_clk); err_phy_power_off: phy_power_off(dsi->phy); +err_prepare_power: + if (dsi->panel) { + if (panel_unprepare_power(dsi->panel)) + DRM_INFO("Can't unprepare power the panel\n"); + } err_refcount: dsi->refcount--; return ret; @@ -698,6 +710,11 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi) clk_disable_unprepare(dsi->digital_clk);
phy_power_off(dsi->phy); + + if (dsi->panel) { + if (panel_unprepare_power(dsi->panel)) + DRM_INFO("Can't unprepare power the panel\n"); + } }
static void mtk_output_dsi_enable(struct mtk_dsi *dsi) @@ -1001,7 +1018,6 @@ static int mtk_dsi_probe(struct platform_device *pdev) { struct mtk_dsi *dsi; struct device *dev = &pdev->dev; - struct drm_panel *panel; struct resource *regs; int irq_num; int ret; @@ -1019,12 +1035,12 @@ static int mtk_dsi_probe(struct platform_device *pdev) }
ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, - &panel, &dsi->next_bridge); + &dsi->panel, &dsi->next_bridge); if (ret) goto err_unregister_host;
- if (panel) { - dsi->next_bridge = devm_drm_panel_bridge_add(dev, panel); + if (dsi->panel) { + dsi->next_bridge = devm_drm_panel_bridge_add(dev, dsi->panel); if (IS_ERR(dsi->next_bridge)) { ret = PTR_ERR(dsi->next_bridge); goto err_unregister_host;