| Message ID | 20180212161538.22669-4-s.nawrocki@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
On Mon, Feb 12, 2018 at 5:15 PM, Sylwester Nawrocki <s.nawrocki@samsung.com> wrote: > 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> > --- > Changes since v1: > - removed stray whitespace change. > --- > sound/soc/samsung/i2s.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 5088d12faeda..7b57ad11ca15 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -1404,9 +1404,14 @@ static int samsung_i2s_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); ret = i2s_register_clock_provider(pdev); - if (!ret) - return 0; + if (ret < 0) + goto err_disable_pm; + + pri_dai->op_clk = clk_get_parent(pri_dai->clk_table[CLK_I2S_RCLK_SRC]); + + return 0; +err_disable_pm: pm_runtime_disable(&pdev->dev); err_disable_clk: clk_disable_unprepare(pri_dai->clk);
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> --- Changes since v1: - removed stray whitespace change. --- sound/soc/samsung/i2s.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)