On 4 October 2016 at 11:46, Mylène Josserand mylene.josserand@free-electrons.com wrote:
Add APB deassert function for sun4i-i2s driver.
Signed-off-by: Mylène Josserand mylene.josserand@free-electrons.com
sound/soc/sunxi/sun4i-i2s.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 687a8f8..f3f7026 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -17,6 +17,7 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> +#include <linux/reset.h>
#include <sound/dmaengine_pcm.h> #include <sound/pcm_params.h> @@ -589,6 +590,7 @@ static int sun4i_i2s_probe(struct platform_device *pdev) { struct sun4i_i2s *i2s; struct resource *res;
struct reset_control *reset_apb; void __iomem *regs; int irq, ret;@@ -626,7 +628,19 @@ static int sun4i_i2s_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't get our mod clock\n"); return PTR_ERR(i2s->mod_clk); }
reset_apb = devm_reset_control_get(&pdev->dev, "apb_reset");if (IS_ERR(reset_apb)) {dev_err(&pdev->dev, "Can't get apb reset\n");return PTR_ERR(i2s->mod_clk);}ret = reset_control_deassert(reset_apb);if (ret < 0) {dev_err(&pdev->dev, "Can't deassert apb reset (%d)\n", ret);return ret;}
Is this functionality only required for A31 and onwards?, CK
i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG; i2s->playback_dma_data.maxburst = 4;-- 2.9.3
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