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@xxxxxxxxxxx> --- sound/soc/samsung/i2s.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index b7d25a63da8b..1c05170e4999 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -1328,6 +1328,7 @@ static int samsung_i2s_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to enable clock: %d\n", ret); return ret; } + pri_dai->dma_playback.addr = regs_base + I2STXD; pri_dai->dma_capture.addr = regs_base + I2SRXD; pri_dai->dma_playback.chan_name = "tx"; @@ -1401,9 +1402,14 @@ 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); -- 2.14.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
