[PATCH v3 11/22] staging: media: tegra-video: csi: move avdd-dsi-csi-supply from VI to CSI
From: Svyatoslav Ryhel <hidden>
Date: 2025-09-25 15:17:33
Also in:
dri-devel, linux-clk, linux-gpio, linux-media, linux-staging, linux-tegra, lkml
Subsystem:
media input infrastructure (v4l/dvb), staging subsystem, tegra video driver, the rest · Maintainers:
Mauro Carvalho Chehab, Greg Kroah-Hartman, Thierry Reding, Jonathan Hunter, Sowjanya Komatineni, Luca Ceresoli, Linus Torvalds
The avdd-dsi-csi-supply is CSI power supply not VI, hence move it to proper place. Signed-off-by: Svyatoslav Ryhel <redacted> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # Tegra20 VIP Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> --- drivers/staging/media/tegra-video/csi.c | 19 ++++++++++++++++++- drivers/staging/media/tegra-video/csi.h | 2 ++ drivers/staging/media/tegra-video/vi.c | 23 ++--------------------- drivers/staging/media/tegra-video/vi.h | 2 -- 4 files changed, 22 insertions(+), 24 deletions(-)
diff --git a/drivers/staging/media/tegra-video/csi.c b/drivers/staging/media/tegra-video/csi.c
index ef5f054b6d49..7d70478a07aa 100644
--- a/drivers/staging/media/tegra-video/csi.c
+++ b/drivers/staging/media/tegra-video/csi.c@@ -710,6 +710,8 @@ static int __maybe_unused csi_runtime_suspend(struct device *dev) clk_bulk_disable_unprepare(csi->soc->num_clks, csi->clks); + regulator_disable(csi->vdd); + return 0; }
@@ -718,13 +720,23 @@ static int __maybe_unused csi_runtime_resume(struct device *dev) struct tegra_csi *csi = dev_get_drvdata(dev); int ret; + ret = regulator_enable(csi->vdd); + if (ret) { + dev_err(dev, "failed to enable VDD supply: %d\n", ret); + return ret; + } + ret = clk_bulk_prepare_enable(csi->soc->num_clks, csi->clks); if (ret < 0) { dev_err(csi->dev, "failed to enable clocks: %d\n", ret); - return ret; + goto disable_vdd; } return 0; + +disable_vdd: + regulator_disable(csi->vdd); + return ret; } static int tegra_csi_init(struct host1x_client *client)
@@ -802,6 +814,11 @@ static int tegra_csi_probe(struct platform_device *pdev) return ret; } + csi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); + if (IS_ERR(csi->vdd)) + return dev_err_probe(&pdev->dev, PTR_ERR(csi->vdd), + "failed to get VDD supply"); + if (!pdev->dev.pm_domain) { ret = -ENOENT; dev_warn(&pdev->dev, "PM domain is not attached: %d\n", ret);
diff --git a/drivers/staging/media/tegra-video/csi.h b/drivers/staging/media/tegra-video/csi.h
index 3ed2dbc73ce9..1550defb115a 100644
--- a/drivers/staging/media/tegra-video/csi.h
+++ b/drivers/staging/media/tegra-video/csi.h@@ -137,6 +137,7 @@ struct tegra_csi_soc { * @client: host1x_client struct * @iomem: register base * @clks: clock for CSI and CIL + * @vdd: vdd regulator for CSI hardware, usually avdd_dsi_csi * @soc: pointer to SoC data structure * @ops: csi operations * @csi_chans: list head for CSI channels
@@ -146,6 +147,7 @@ struct tegra_csi { struct host1x_client client; void __iomem *iomem; struct clk_bulk_data *clks; + struct regulator *vdd; const struct tegra_csi_soc *soc; const struct tegra_csi_ops *ops; struct list_head csi_chans;
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 04b538e8b514..70607a3eeee1 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c@@ -1417,29 +1417,19 @@ static int __maybe_unused vi_runtime_resume(struct device *dev) struct tegra_vi *vi = dev_get_drvdata(dev); int ret; - ret = regulator_enable(vi->vdd); - if (ret) { - dev_err(dev, "failed to enable VDD supply: %d\n", ret); - return ret; - } - ret = clk_set_rate(vi->clk, vi->soc->vi_max_clk_hz); if (ret) { dev_err(dev, "failed to set vi clock rate: %d\n", ret); - goto disable_vdd; + return ret; } ret = clk_prepare_enable(vi->clk); if (ret) { dev_err(dev, "failed to enable vi clock: %d\n", ret); - goto disable_vdd; + return ret; } return 0; - -disable_vdd: - regulator_disable(vi->vdd); - return ret; } static int __maybe_unused vi_runtime_suspend(struct device *dev)
@@ -1448,8 +1438,6 @@ static int __maybe_unused vi_runtime_suspend(struct device *dev) clk_disable_unprepare(vi->clk); - regulator_disable(vi->vdd); - return 0; }
@@ -1894,13 +1882,6 @@ static int tegra_vi_probe(struct platform_device *pdev) return ret; } - vi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi"); - if (IS_ERR(vi->vdd)) { - ret = PTR_ERR(vi->vdd); - dev_err(&pdev->dev, "failed to get VDD supply: %d\n", ret); - return ret; - } - if (!pdev->dev.pm_domain) { ret = -ENOENT; dev_warn(&pdev->dev, "PM domain is not attached: %d\n", ret);
diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h
index cac0c0d0e225..bfadde8858d4 100644
--- a/drivers/staging/media/tegra-video/vi.h
+++ b/drivers/staging/media/tegra-video/vi.h@@ -94,7 +94,6 @@ struct tegra_vi_soc { * @client: host1x_client struct * @iomem: register base * @clk: main clock for VI block - * @vdd: vdd regulator for VI hardware, normally it is avdd_dsi_csi * @soc: pointer to SoC data structure * @ops: vi operations * @vi_chans: list head for VI channels
@@ -104,7 +103,6 @@ struct tegra_vi { struct host1x_client client; void __iomem *iomem; struct clk *clk; - struct regulator *vdd; const struct tegra_vi_soc *soc; const struct tegra_vi_ops *ops; struct list_head vi_chans;
--
2.48.1