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gpu: host1x: mipi: Update tegra_mipi_request() to be node based

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[ 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>
This commit is contained in:
Sowjanya Komatineni 2020-07-14 21:20:51 -07:00 committed by Sasha Levin
parent f05631a852
commit 85f28e98c5
3 changed files with 5 additions and 4 deletions
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2
drivers/gpu/drm/tegra/dsi.c
View File

@ -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);

4
drivers/gpu/host1x/mipi.c
View File

@ -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;

3
include/linux/host1x.h
View File

@ -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);