| Message ID | 20210427001828.2375555-5-dmitry.baryshkov@linaro.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | drm/msm: improve register snapshotting | expand |
On 2021-04-26 17:18, Dmitry Baryshkov wrote: > Add DSI PHY registers to the msm state snapshots to be able to check > their contents. > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> > --- > drivers/gpu/drm/msm/dsi/dsi.c | 1 + > drivers/gpu/drm/msm/dsi/dsi.h | 1 + > drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 31 +++++++++++++++++++++++---- > drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 4 ++++ > 4 files changed, 33 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/msm/dsi/dsi.c > b/drivers/gpu/drm/msm/dsi/dsi.c > index 322d2e535df0..75afc12a7b25 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi.c > +++ b/drivers/gpu/drm/msm/dsi/dsi.c > @@ -269,5 +269,6 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, > struct drm_device *dev, > void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct > msm_dsi *msm_dsi) > { > msm_dsi_host_snapshot(disp_state, msm_dsi->host); > + msm_dsi_phy_snapshot(disp_state, msm_dsi->phy); > } > > diff --git a/drivers/gpu/drm/msm/dsi/dsi.h > b/drivers/gpu/drm/msm/dsi/dsi.h > index b5679cf89413..cea73f9c4be9 100644 > --- a/drivers/gpu/drm/msm/dsi/dsi.h > +++ b/drivers/gpu/drm/msm/dsi/dsi.h > @@ -176,6 +176,7 @@ int msm_dsi_phy_get_clk_provider(struct msm_dsi_phy > *phy, > struct clk **byte_clk_provider, struct clk **pixel_clk_provider); > void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); > int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); > +void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct > msm_dsi_phy *phy); > > #endif /* __DSI_CONNECTOR_H__ */ > > diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > index f0a2ddf96a4b..bf7a4c20c13c 100644 > --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > @@ -658,14 +658,14 @@ static int dsi_phy_driver_probe(struct > platform_device *pdev) > phy->regulator_ldo_mode = of_property_read_bool(dev->of_node, > "qcom,dsi-phy-regulator-ldo-mode"); > > - phy->base = msm_ioremap(pdev, "dsi_phy", "DSI_PHY"); > + phy->base = msm_ioremap_size(pdev, "dsi_phy", "DSI_PHY", > &phy->base_size); > if (IS_ERR(phy->base)) { > DRM_DEV_ERROR(dev, "%s: failed to map phy base\n", __func__); > ret = -ENOMEM; > goto fail; > } > > - phy->pll_base = msm_ioremap(pdev, "dsi_pll", "DSI_PLL"); > + phy->pll_base = msm_ioremap_size(pdev, "dsi_pll", "DSI_PLL", > &phy->pll_size); > if (IS_ERR(phy->pll_base)) { > DRM_DEV_ERROR(&pdev->dev, "%s: failed to map pll base\n", __func__); > ret = -ENOMEM; > @@ -673,7 +673,7 @@ static int dsi_phy_driver_probe(struct > platform_device *pdev) > } > > if (phy->cfg->has_phy_lane) { > - phy->lane_base = msm_ioremap(pdev, "dsi_phy_lane", "DSI_PHY_LANE"); > + phy->lane_base = msm_ioremap_size(pdev, "dsi_phy_lane", > "DSI_PHY_LANE", &phy->lane_size); > if (IS_ERR(phy->lane_base)) { > DRM_DEV_ERROR(&pdev->dev, "%s: failed to map phy lane base\n", > __func__); > ret = -ENOMEM; > @@ -682,7 +682,7 @@ static int dsi_phy_driver_probe(struct > platform_device *pdev) > } > > if (phy->cfg->has_phy_regulator) { > - phy->reg_base = msm_ioremap(pdev, "dsi_phy_regulator", > "DSI_PHY_REG"); > + phy->reg_base = msm_ioremap_size(pdev, "dsi_phy_regulator", > "DSI_PHY_REG", &phy->reg_size); > if (IS_ERR(phy->reg_base)) { > DRM_DEV_ERROR(&pdev->dev, "%s: failed to map phy regulator > base\n", __func__); > ret = -ENOMEM; > @@ -868,3 +868,26 @@ int msm_dsi_phy_pll_restore_state(struct > msm_dsi_phy *phy) > > return 0; > } > + > +void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct > msm_dsi_phy *phy) > +{ > + msm_disp_snapshot_add_block(disp_state, > + phy->base_size, phy->base, > + "dsi%d_phy", phy->id); > + > + /* Do not try accessing PLL registers if it is switched off */ > + if (phy->pll_on) > + msm_disp_snapshot_add_block(disp_state, > + phy->pll_size, phy->pll_base, > + "dsi%d_pll", phy->id); > + > + if (phy->lane_base) > + msm_disp_snapshot_add_block(disp_state, > + phy->lane_size, phy->lane_base, > + "dsi%d_lane", phy->id); > + > + if (phy->reg_base) > + msm_disp_snapshot_add_block(disp_state, > + phy->reg_size, phy->reg_base, > + "dsi%d_reg", phy->id); > +} > diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h > b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h > index 94a77ac364d3..5b0feef87127 100644 > --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h > +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h > @@ -85,6 +85,10 @@ struct msm_dsi_phy { > void __iomem *pll_base; > void __iomem *reg_base; > void __iomem *lane_base; > + phys_addr_t base_size; > + phys_addr_t pll_size; > + phys_addr_t reg_size; > + phys_addr_t lane_size; > int id; > > struct clk *ahb_clk;
diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c index 322d2e535df0..75afc12a7b25 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.c +++ b/drivers/gpu/drm/msm/dsi/dsi.c @@ -269,5 +269,6 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev, void msm_dsi_snapshot(struct msm_disp_state *disp_state, struct msm_dsi *msm_dsi) { msm_dsi_host_snapshot(disp_state, msm_dsi->host); + msm_dsi_phy_snapshot(disp_state, msm_dsi->phy); } diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index b5679cf89413..cea73f9c4be9 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -176,6 +176,7 @@ int msm_dsi_phy_get_clk_provider(struct msm_dsi_phy *phy, struct clk **byte_clk_provider, struct clk **pixel_clk_provider); void msm_dsi_phy_pll_save_state(struct msm_dsi_phy *phy); int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy); +void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy); #endif /* __DSI_CONNECTOR_H__ */ diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index f0a2ddf96a4b..bf7a4c20c13c 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -658,14 +658,14 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) phy->regulator_ldo_mode = of_property_read_bool(dev->of_node, "qcom,dsi-phy-regulator-ldo-mode"); - phy->base = msm_ioremap(pdev, "dsi_phy", "DSI_PHY"); + phy->base = msm_ioremap_size(pdev, "dsi_phy", "DSI_PHY", &phy->base_size); if (IS_ERR(phy->base)) { DRM_DEV_ERROR(dev, "%s: failed to map phy base\n", __func__); ret = -ENOMEM; goto fail; } - phy->pll_base = msm_ioremap(pdev, "dsi_pll", "DSI_PLL"); + phy->pll_base = msm_ioremap_size(pdev, "dsi_pll", "DSI_PLL", &phy->pll_size); if (IS_ERR(phy->pll_base)) { DRM_DEV_ERROR(&pdev->dev, "%s: failed to map pll base\n", __func__); ret = -ENOMEM; @@ -673,7 +673,7 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) } if (phy->cfg->has_phy_lane) { - phy->lane_base = msm_ioremap(pdev, "dsi_phy_lane", "DSI_PHY_LANE"); + phy->lane_base = msm_ioremap_size(pdev, "dsi_phy_lane", "DSI_PHY_LANE", &phy->lane_size); if (IS_ERR(phy->lane_base)) { DRM_DEV_ERROR(&pdev->dev, "%s: failed to map phy lane base\n", __func__); ret = -ENOMEM; @@ -682,7 +682,7 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) } if (phy->cfg->has_phy_regulator) { - phy->reg_base = msm_ioremap(pdev, "dsi_phy_regulator", "DSI_PHY_REG"); + phy->reg_base = msm_ioremap_size(pdev, "dsi_phy_regulator", "DSI_PHY_REG", &phy->reg_size); if (IS_ERR(phy->reg_base)) { DRM_DEV_ERROR(&pdev->dev, "%s: failed to map phy regulator base\n", __func__); ret = -ENOMEM; @@ -868,3 +868,26 @@ int msm_dsi_phy_pll_restore_state(struct msm_dsi_phy *phy) return 0; } + +void msm_dsi_phy_snapshot(struct msm_disp_state *disp_state, struct msm_dsi_phy *phy) +{ + msm_disp_snapshot_add_block(disp_state, + phy->base_size, phy->base, + "dsi%d_phy", phy->id); + + /* Do not try accessing PLL registers if it is switched off */ + if (phy->pll_on) + msm_disp_snapshot_add_block(disp_state, + phy->pll_size, phy->pll_base, + "dsi%d_pll", phy->id); + + if (phy->lane_base) + msm_disp_snapshot_add_block(disp_state, + phy->lane_size, phy->lane_base, + "dsi%d_lane", phy->id); + + if (phy->reg_base) + msm_disp_snapshot_add_block(disp_state, + phy->reg_size, phy->reg_base, + "dsi%d_reg", phy->id); +} diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h index 94a77ac364d3..5b0feef87127 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h @@ -85,6 +85,10 @@ struct msm_dsi_phy { void __iomem *pll_base; void __iomem *reg_base; void __iomem *lane_base; + phys_addr_t base_size; + phys_addr_t pll_size; + phys_addr_t reg_size; + phys_addr_t lane_size; int id; struct clk *ahb_clk;
Add DSI PHY registers to the msm state snapshots to be able to check their contents. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/gpu/drm/msm/dsi/dsi.c | 1 + drivers/gpu/drm/msm/dsi/dsi.h | 1 + drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 31 +++++++++++++++++++++++---- drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 4 ++++ 4 files changed, 33 insertions(+), 4 deletions(-)