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authorSowjanya Komatineni <skomatineni@nvidia.com>2020-07-15 07:20:51 +0300
committerThierry Reding <treding@nvidia.com>2020-07-17 17:06:13 +0300
commit767598d447aa46411289c5808b0e45e20a1823b4 (patch)
tree01c552ea6b7e765bf311a03e8937ea8fe81696d6
parentfce3a51d9b31312aa12ecb72ffabfc4c7b40bdc6 (diff)
downloadlinux-767598d447aa46411289c5808b0e45e20a1823b4.tar.xz
gpu: host1x: mipi: Update tegra_mipi_request() to be node based
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> Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r--drivers/gpu/drm/tegra/dsi.c2
-rw-r--r--drivers/gpu/host1x/mipi.c4
-rw-r--r--include/linux/host1x.h3
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 38beab9ab4f8..3c09e290632c 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 e00809d996a2..762d349ad00f 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 a3a568bf9686..9e678412778c 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);