Re: [alsa-devel] [PATCH 2/5] ASoC: da7213: Add checking of SRM lock status before enabling DAI

On Tue, May 10, 2016 at 04:11:05PM +0100, Adam Thomson wrote:

• /* Slave mode, if SRM not enabled no need for status checks */
  

• pll_ctrl = snd_soc_read(codec, DA7213_PLL_CTRL);
  

• if (!(pll_ctrl & DA7213_PLL_SRM_EN))
  

• 	return 0;
  

This isn't going to work, the driver has no volatile registers but it does have a cache...