[RFC PATCH v3 14/18] gpu: host1x: mipi: Update tegra_mipi_request() to be node based
From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: 2020-07-15 04:19:52
Also in:
linux-i2c, linux-media, linux-tegra, lkml
Subsystem:
drm drivers, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Thierry Reding, Mikko Perttunen, Linus Torvalds
Tegra CSI driver need a separate MIPI device for each channel as calibration of corresponding MIPI pads for each channel should happen independently. So, this patch updates tegra_mipi_request() API to add a device_node pointer argument to allow creating mipi device for specific device node rather than a device. Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> --- drivers/gpu/drm/tegra/dsi.c | 2 +- drivers/gpu/host1x/mipi.c | 4 ++-- include/linux/host1x.h | 3 ++- 3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 38beab9..3c09e29 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c@@ -1618,7 +1618,7 @@ static int tegra_dsi_probe(struct platform_device *pdev) if (IS_ERR(dsi->regs)) return PTR_ERR(dsi->regs); - dsi->mipi = tegra_mipi_request(&pdev->dev); + dsi->mipi = tegra_mipi_request(&pdev->dev, pdev->dev.of_node); if (IS_ERR(dsi->mipi)) return PTR_ERR(dsi->mipi);
diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c
index e00809d..762d349 100644
--- a/drivers/gpu/host1x/mipi.c
+++ b/drivers/gpu/host1x/mipi.c@@ -206,9 +206,9 @@ static int tegra_mipi_power_down(struct tegra_mipi *mipi) return 0; } -struct tegra_mipi_device *tegra_mipi_request(struct device *device) +struct tegra_mipi_device *tegra_mipi_request(struct device *device, + struct device_node *np) { - struct device_node *np = device->of_node; struct tegra_mipi_device *dev; struct of_phandle_args args; int err;
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index a3a568b..9e67841 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h@@ -328,7 +328,8 @@ int host1x_client_resume(struct host1x_client *client); struct tegra_mipi_device; -struct tegra_mipi_device *tegra_mipi_request(struct device *device); +struct tegra_mipi_device *tegra_mipi_request(struct device *device, + struct device_node *np); void tegra_mipi_free(struct tegra_mipi_device *device); int tegra_mipi_enable(struct tegra_mipi_device *device); int tegra_mipi_disable(struct tegra_mipi_device *device);
--
2.7.4