[alsa-devel] [PATCH 2/4] sound: codecs: pcm1792a: add define for register

[Michael Trimarchi]

Hi

On Fri, Nov 20, 2015 at 11:09 AM, Raphael Poggi <poggi.raph at gmail.com> wrote:
> From: Raphael Poggi <poggi.raph at gmail.com>
>
> Use define for register instead of number, when it is possible.
> Doing this, make easier to read and use in the code.
>
> Signed-off-by: Raphael Poggi <poggi.raph at gmail.com>
> ---
>  sound/soc/codecs/pcm1792a.c | 47 +++++++++++++++++++++++++++------------------
>  1 file changed, 28 insertions(+), 19 deletions(-)
>
> diff --git a/sound/soc/codecs/pcm1792a.c b/sound/soc/codecs/pcm1792a.c
> index cf42b24..febaa48 100644
> --- a/sound/soc/codecs/pcm1792a.c
> +++ b/sound/soc/codecs/pcm1792a.c
> @@ -33,27 +33,36 @@
>
>  #include "pcm1792a.h"
>
> -#define PCM1792A_DAC_VOL_LEFT  0x10
> -#define PCM1792A_DAC_VOL_RIGHT 0x11
> -#define PCM1792A_FMT_CONTROL   0x12
> -#define PCM1792A_MODE_CONTROL  0x13
> -#define PCM1792A_SOFT_MUTE     PCM1792A_FMT_CONTROL
> -
> -#define PCM1792A_FMT_MASK      0x70
> -#define PCM1792A_FMT_SHIFT     4
> -#define PCM1792A_MUTE_MASK     0x01
> -#define PCM1792A_MUTE_SHIFT    0
> -#define PCM1792A_ATLD_ENABLE   (1 << 7)
> +#define PCM1792A_DAC_VOL_LEFT          0x10
> +#define PCM1792A_DAC_VOL_RIGHT         0x11
> +#define PCM1792A_FMT_CONTROL           0x12
> +#define PCM1792A_MODE_CONTROL          0x13
> +#define PCM1792A_ZERO_OUTPUT           0x15
> +#define PCM1792A_SOFT_MUTE             PCM1792A_FMT_CONTROL
> +#define PCM1792A_ZERO_FLAG             0x16
> +#define PCM1792A_DEVICE_ID             0x17
> +
> +#define PCM1792A_CHANNEL               0x14
> +#define PCM1792A_CHANNEL_MONO_MASK     0x8
> +#define PCM1792A_CHANNEL_MONO_SHIFT    0x8
> +#define PCM1792A_CHANNEL_MONO_LEFT     (0x0 << PCM1792A_CHANNEL_MONO_SHIFT)
> +#define PCM1792A_CHANNEL_MONO_RIGHT    (0x1 << PCM1792A_CHANNEL_MONO_SHIFT)
> +

Can you just add what you use? and give an order on those defines?

What is register, what is mask, what is shift?

> +#define PCM1792A_FMT_MASK              0x70
> +#define PCM1792A_FMT_SHIFT             4
> +#define PCM1792A_MUTE_MASK             0x01
> +#define PCM1792A_MUTE_SHIFT            0
> +#define PCM1792A_ATLD_ENABLE           (1 << 7)
>
>  static const struct reg_default pcm1792a_reg_defaults[] = {
> -       { 0x10, 0xff },
> -       { 0x11, 0xff },
> -       { 0x12, 0x50 },
> -       { 0x13, 0x00 },
> -       { 0x14, 0x00 },
> -       { 0x15, 0x01 },
> -       { 0x16, 0x00 },
> -       { 0x17, 0x00 },
> +       { PCM1792A_DAC_VOL_LEFT, 0xff },
> +       { PCM1792A_DAC_VOL_RIGHT, 0xff },
> +       { PCM1792A_FMT_CONTROL, 0x50 },
> +       { PCM1792A_MODE_CONTROL, 0x00 },
> +       { PCM1792A_CHANNEL, 0x00 },
> +       { PCM1792A_ZERO_OUTPUT, 0x01 },
> +       { PCM1792A_ZERO_FLAG, 0x00 },
> +       { PCM1792A_DEVICE_ID, 0x00 },
>  };
>
>  static bool pcm1792a_accessible_reg(struct device *dev, unsigned int reg)

This function should be update too

Michael

> --
> 2.1.0
>
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