[PATCH 5.4 086/183] gpu: host1x: mipi: Update tegra_mipi_request() to be node based

Sasha Levin
2024-03-24T23:48:06Z

From: Sowjanya Komatineni <skomatineni@nvidia.com>

[ Upstream commit 767598d447aa46411289c5808b0e45e20a1823b4 ]

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>
Stable-dep-of: 830c1ded3563 ("drm/tegra: dsi: Fix some error handling paths in tegra_dsi_probe()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 4e454479ff157..1cc6dc6167771 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1542,7 +1542,7 @@ 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 e00809d996a29..762d349ad00f1 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 e6eea45e11549..0b9d59807e5e2 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -314,7 +314,8 @@ int host1x_client_unregister(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);
--
2.43.0