ASoC: rockchip-i2s: enable "hclk" for rockchip I2S controller

As "hclk" is used for rockchip I2S controller, driver must to enable
it in probe.

Tested on RK3288 with max98090.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 8d8e4b59049f2669fc503e05dd66ef52cb9e960c..dd423c611d9653de4a8c0bacf73a71a8da2d3511 100644 (file)
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -419,6 +419,11 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "Can't retrieve i2s bus clock\n");
                return PTR_ERR(i2s->hclk);
        }
+       ret = clk_prepare_enable(i2s->hclk);
+       if (ret) {
+               dev_err(i2s->dev, "hclock enable failed %d\n", ret);
+               return ret;
+       }
 
        i2s->mclk = devm_clk_get(&pdev->dev, "i2s_clk");
        if (IS_ERR(i2s->mclk)) {