Re: [PATCH 5/5] ASoC: mediatek: mt8188-mt6359: Use bitfield macros for registers

[Trevor Wu (吳文良)]

On Thu, 2023-06-08 at 10:47 +0200, AngeloGioacchino Del Regno wrote:

>  Replace open coded instances of FIELD_GET() with it, move register
> definitions at the top of the file and also replace magic numbers
> with register definitions.
> 
> While at it, also change a regmap_update_bits() call to
> regmap_write()
> because the top 29 bits of AUD_TOP_CFG (31:3) are reserved (unused).
> 
> Signed-off-by: AngeloGioacchino Del Regno <
> angelogioacchino.delregno@xxxxxxxxxxxxx>
> ---
>  sound/soc/mediatek/mt8188/mt8188-mt6359.c | 32 ++++++++++++++-------
> --
>  1 file changed, 19 insertions(+), 13 deletions(-)
> 
> diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> index 5b2660139421..ac69c23e0da1 100644
> --- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> +++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> @@ -6,6 +6,7 @@
>   * Author: Trevor Wu <trevor.wu@xxxxxxxxxxxx>
>   */
>  
> +#include <linux/bitfield.h>
>  #include <linux/input.h>
>  #include <linux/module.h>
>  #include <linux/of_device.h>
> @@ -19,6 +20,15 @@
>  #include "../common/mtk-afe-platform-driver.h"
>  #include "../common/mtk-soundcard-driver.h"
>  
> +#define CKSYS_AUD_TOP_CFG	0x032c
> + #define RG_TEST_ON		BIT(0)
> + #define RG_TEST_TYPE		BIT(2)
> +#define CKSYS_AUD_TOP_MON	0x0330
> + #define TEST_MISO_COUNT_1	GENMASK(3, 0)
> + #define TEST_MISO_COUNT_2	GENMASK(7, 4)
> + #define TEST_MISO_DONE_1	BIT(28)
> + #define TEST_MISO_DONE_2	BIT(29)
> +
>  #define NAU8825_HS_PRESENT	BIT(0)
>  
>  /*
> @@ -251,9 +261,6 @@ static const struct snd_kcontrol_new
> mt8188_nau8825_controls[] = {
>  	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
>  };
>  
> -#define CKSYS_AUD_TOP_CFG 0x032c
> -#define CKSYS_AUD_TOP_MON 0x0330
> -
>  static int mt8188_mt6359_mtkaif_calibration(struct
> snd_soc_pcm_runtime *rtd)
>  {
>  	struct snd_soc_component *cmpnt_afe =
> @@ -265,13 +272,13 @@ static int
> mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
>  	struct mtkaif_param *param;
>  	int chosen_phase_1, chosen_phase_2;
>  	int prev_cycle_1, prev_cycle_2;
> -	int test_done_1, test_done_2;
> +	u8 test_done_1, test_done_2;
>  	int cycle_1, cycle_2;
>  	int mtkaif_chosen_phase[MT8188_MTKAIF_MISO_NUM];
>  	int mtkaif_phase_cycle[MT8188_MTKAIF_MISO_NUM];
>  	int mtkaif_calibration_num_phase;
>  	bool mtkaif_calibration_ok;
> -	unsigned int monitor = 0;
> +	u32 monitor = 0;
>  	int counter;
>  	int phase;
>  	int i;
> @@ -303,8 +310,7 @@ static int
> mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
>  	mt6359_mtkaif_calibration_enable(cmpnt_codec);
>  
>  	/* set test type to synchronizer pulse */
> -	regmap_update_bits(afe_priv->topckgen,
> -			   CKSYS_AUD_TOP_CFG, 0xffff, 0x4);
> +	regmap_write(afe_priv->topckgen, CKSYS_AUD_TOP_CFG,
> RG_TEST_TYPE);

Hi Angelo,

Because CKSYS_AUD_TOP_CFG is a 32bit register, it should be better to
use regmap_set_bits instead.

regmap_set_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, RG_TEST_TYPE);

Thanks,
Trevor


>   	mtkaif_calibration_num_phase = 42;	/* mt6359: 0 ~ 42 */
>  	mtkaif_calibration_ok = true;
>  
> @@ -314,7 +320,7 @@ static int
> mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
>  		mt6359_set_mtkaif_calibration_phase(cmpnt_codec,
>  						    phase, phase,
> phase);
>  
> -		regmap_set_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG,
> 0x1);
> +		regmap_set_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG,
> RG_TEST_ON);
>  
>  		test_done_1 = 0;
>  		test_done_2 = 0;
> @@ -326,14 +332,14 @@ static int
> mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
>  		while (!(test_done_1 & test_done_2)) {
>  			regmap_read(afe_priv->topckgen,
>  				    CKSYS_AUD_TOP_MON, &monitor);
> -			test_done_1 = (monitor >> 28) & 0x1;
> -			test_done_2 = (monitor >> 29) & 0x1;
> +			test_done_1 = FIELD_GET(TEST_MISO_DONE_1,
> monitor);
> +			test_done_2 = FIELD_GET(TEST_MISO_DONE_2,
> monitor);
>  
>  			if (test_done_1 == 1)
> -				cycle_1 = monitor & 0xf;
> +				cycle_1 = FIELD_GET(TEST_MISO_COUNT_1,
> monitor);
>  
>  			if (test_done_2 == 1)
> -				cycle_2 = (monitor >> 4) & 0xf;
> +				cycle_2 = FIELD_GET(TEST_MISO_COUNT_2,
> monitor);
>  
>  			/* handle if never test done */
>  			if (++counter > 10000) {
> @@ -361,7 +367,7 @@ static int
> mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
>  			mtkaif_phase_cycle[MT8188_MTKAIF_MISO_1] =
> prev_cycle_2;
>  		}
>  
> -		regmap_clear_bits(afe_priv->topckgen,
> CKSYS_AUD_TOP_CFG, 0x1);
> +		regmap_clear_bits(afe_priv->topckgen,
> CKSYS_AUD_TOP_CFG, RG_TEST_ON);
>  
>  		if (mtkaif_chosen_phase[MT8188_MTKAIF_MISO_0] >= 0 &&
>  		    mtkaif_chosen_phase[MT8188_MTKAIF_MISO_1] >= 0)
> -- 
> 2.40.1