From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianqun Subject: [PATCH 5/5] ASoC: rockchip-i2s: enable "hclk" for rockchip I2S controller Date: Sat, 13 Sep 2014 08:43:13 +0800 Message-ID: <1410568993-21874-1-git-send-email-jay.xu@rock-chips.com> References: <1410568723-21559-1-git-send-email-jay.xu@rock-chips.com> Return-path: In-Reply-To: <1410568723-21559-1-git-send-email-jay.xu@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: heiko@sntech.de, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.de, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Cc: huangtao@rock-chips.com, cf@rock-chips.com, Jianqun List-Id: alsa-devel@alsa-project.org 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 --- sound/soc/rockchip/rockchip_i2s.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 6595383..033487c 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -423,6 +423,11 @@ 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)) { -- 1.9.1