On Tue, Mar 25, 2014 at 05:02:35PM -0700, Arun Shamanna Lakshmi wrote: > + } > + if (!match) { > + dev_err(codec->dev, "ASoC: Failed to find matched enum > value\n"); > + return -EINVAL; > + } else > + ucontrol->value.enumerated.item[0] = i;
Coding style nit: if one side of the if has braces both should. Most of this code could also use more blank lines. > + for (reg_idx = 0; reg_idx < e->num_regs; reg_idx++) { > + val = e->values[item * e->num_regs + reg_idx]; > + ret = snd_soc_update_bits_locked(codec, e->reg[reg_idx], > + e->mask[reg_idx], val); > + if (ret) > + return ret; > + } So, this is a bit interesting. It will update one register at a time which means that we are likely to transiently set an invalid value sometimes which might not make the hardware happy or may cause us to write a valid value with undesirable consequences. I'd expect to see some handling of this, some combination of providing a safe value that the hardware could be reset to prior to change and doing a bulk write to all the registers simultaneously if we can (I know sometimes hardware has special handling for atomic updates of multi-register values in a single block transfer).
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