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ASoC: samsung: i2s: Prevent external abort on exynos5433 I2S1 access
It seems both PCLK_I2S1 and SCLK_I2S1 clocks need to be enabled before I2S1 control registers can be accessed on exynos5433. If SCLK clock is disabled an exception is triggered. To fix this parent clock of the RCLK_SRC clock is assigned to pri_dai->op_clk so required gate clock is handled by the runtime PM ops. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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1 changed files with 7 additions and 2 deletions
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@ -1404,9 +1404,14 @@ static int samsung_i2s_probe(struct platform_device *pdev)
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pm_runtime_enable(&pdev->dev);
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ret = i2s_register_clock_provider(pdev);
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if (!ret)
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return 0;
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if (ret < 0)
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goto err_disable_pm;
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pri_dai->op_clk = clk_get_parent(pri_dai->clk_table[CLK_I2S_RCLK_SRC]);
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return 0;
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err_disable_pm:
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pm_runtime_disable(&pdev->dev);
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err_disable_clk:
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clk_disable_unprepare(pri_dai->clk);
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