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drm/tegra: dsi: Make use of the helper function dev_err_probe()

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[ Upstream commit fc75e4fcbd1e4252a0481ebb23cd4516c127a8e2 ]

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.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:
Cai Huoqing 2021-09-16 18:56:40 +08:00 committed by Sasha Levin
parent 92003981a6
commit 0e8c9283e5
1 changed files with 12 additions and 16 deletions
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28
drivers/gpu/drm/tegra/dsi.c
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@ -1591,28 +1591,24 @@ static int tegra_dsi_probe(struct platform_device *pdev)
}
dsi->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dsi->clk)) {
dev_err(&pdev->dev, "cannot get DSI clock\n");
return PTR_ERR(dsi->clk);
}
if (IS_ERR(dsi->clk))
return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk),
"cannot get DSI clock\n");
dsi->clk_lp = devm_clk_get(&pdev->dev, "lp");
if (IS_ERR(dsi->clk_lp)) {
dev_err(&pdev->dev, "cannot get low-power clock\n");
return PTR_ERR(dsi->clk_lp);
}
if (IS_ERR(dsi->clk_lp))
return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_lp),
"cannot get low-power clock\n");
dsi->clk_parent = devm_clk_get(&pdev->dev, "parent");
if (IS_ERR(dsi->clk_parent)) {
dev_err(&pdev->dev, "cannot get parent clock\n");
return PTR_ERR(dsi->clk_parent);
}
if (IS_ERR(dsi->clk_parent))
return dev_err_probe(&pdev->dev, PTR_ERR(dsi->clk_parent),
"cannot get parent clock\n");
dsi->vdd = devm_regulator_get(&pdev->dev, "avdd-dsi-csi");
if (IS_ERR(dsi->vdd)) {
dev_err(&pdev->dev, "cannot get VDD supply\n");
return PTR_ERR(dsi->vdd);
}
if (IS_ERR(dsi->vdd))
return dev_err_probe(&pdev->dev, PTR_ERR(dsi->vdd),
"cannot get VDD supply\n");
err = tegra_dsi_setup_clocks(dsi);
if (err < 0) {