| Message ID | 20230608084727.74403-6-angelogioacchino.delregno@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ASoC: mt8188-mt6359: Cleanups | expand |
On 08/06/2023 10:47, 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@collabora.com> > --- > 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@mediatek.com> > */ > > +#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; Shouldn't be unsigned too ? I'm wondering if it would be better (probably in another patch) to change the data type of the other variables too, to match their use-case. (maybe it's already the case, I'm just wondering) > 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); > 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) After that: Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Il 08/06/23 11:50, Alexandre Mergnat ha scritto: > On 08/06/2023 10:47, 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@collabora.com> >> --- >> 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@mediatek.com> >> */ >> +#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; > > Shouldn't be unsigned too ? > > I'm wondering if it would be better (probably in another patch) to change the data > type of the other variables too, to match their use-case. (maybe it's already the > case, I'm just wondering) > In theory, yes, cycle_1 and 2 should be unsigned, but the signedness of this variable is getting used in the calibration logic later, as in the for loop they are both being reinitialized to -1 ... so I couldn't just switch 'em to unsigned. >> 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); >> 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) > > After that: > > Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> >
On 08/06/2023 11:57, AngeloGioacchino Del Regno wrote: >>> - int test_done_1, test_done_2; >>> + u8 test_done_1, test_done_2; >>> int cycle_1, cycle_2; >> >> Shouldn't be unsigned too ? >> >> I'm wondering if it would be better (probably in another patch) to >> change the data type of the other variables too, to match their >> use-case. (maybe it's already the case, I'm just wondering) >> > > In theory, yes, cycle_1 and 2 should be unsigned, but the signedness of > this > variable is getting used in the calibration logic later, as in the for loop > they are both being reinitialized to -1 ... so I couldn't just switch > 'em to > unsigned. Understood, thanks for your explanation.
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@collabora.com> > --- > 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@mediatek.com> > */ > > +#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
Il 08/06/23 12:03, Trevor Wu (吳文良) ha scritto: > 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@collabora.com> >> --- >> 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@mediatek.com> >> */ >> >> +#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); > The previous call to regmap_update_bits() was unsetting RG_TEST_ON and RE_SW_RESET while setting RG_TEST_TYPE: using regmap_write() ensures that we do exactly the same, without the overhead of performing the additional register read and bit swapping operations. Using the proposed regmap_set_bits() would change the behavior of this flow, which may result in unexpected hardware behavior, as we wouldn't be unsetting the previously mentioned two bits. Regards, Angelo > 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
On Thu, 2023-06-08 at 12:07 +0200, AngeloGioacchino Del Regno wrote: > > External email : Please do not click links or open attachments until > you have verified the sender or the content. > Il 08/06/23 12:03, Trevor Wu (吳文良) ha scritto: > > 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@collabora.com> > >> --- > >> 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@mediatek.com> > >> */ > >> > >> +#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_CFG0x032c > >> + #define RG_TEST_ONBIT(0) > >> + #define RG_TEST_TYPEBIT(2) > >> +#define CKSYS_AUD_TOP_MON0x0330 > >> + #define TEST_MISO_COUNT_1GENMASK(3, 0) > >> + #define TEST_MISO_COUNT_2GENMASK(7, 4) > >> + #define TEST_MISO_DONE_1BIT(28) > >> + #define TEST_MISO_DONE_2BIT(29) > >> + > >> #define NAU8825_HS_PRESENTBIT(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); > > > > The previous call to regmap_update_bits() was unsetting RG_TEST_ON > and RE_SW_RESET > while setting RG_TEST_TYPE: using regmap_write() ensures that we do > exactly the > same, without the overhead of performing the additional register read > and bit > swapping operations. > > Using the proposed regmap_set_bits() would change the behavior of > this flow, which > may result in unexpected hardware behavior, as we wouldn't be > unsetting the > previously mentioned two bits. > > Regards, > Angelo It's unclear why the original author chose a mask value of 0xffff, but remap_write() also clears the higher 16 bits which differs from the original logic. The comment for that line states 'set test type to synchronizer pulse', so I suggest updating only BIT2 here. Additionally, I checked datasheet for other two bits, which have default values of 0. However, I came across an internal codebase that used regmap_write(), so it should be a safe implementation. If you think regmap_write() is better, it's ok with me. Thanks, Trevor > > > 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 > > >
Il 08/06/23 13:02, Trevor Wu (吳文良) ha scritto: > On Thu, 2023-06-08 at 12:07 +0200, AngeloGioacchino Del Regno wrote: >> >> External email : Please do not click links or open attachments until >> you have verified the sender or the content. >> Il 08/06/23 12:03, Trevor Wu (吳文良) ha scritto: >>> 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@collabora.com> >>>> --- >>>> 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@mediatek.com> >>>> */ >>>> >>>> +#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_CFG0x032c >>>> + #define RG_TEST_ONBIT(0) >>>> + #define RG_TEST_TYPEBIT(2) >>>> +#define CKSYS_AUD_TOP_MON0x0330 >>>> + #define TEST_MISO_COUNT_1GENMASK(3, 0) >>>> + #define TEST_MISO_COUNT_2GENMASK(7, 4) >>>> + #define TEST_MISO_DONE_1BIT(28) >>>> + #define TEST_MISO_DONE_2BIT(29) >>>> + >>>> #define NAU8825_HS_PRESENTBIT(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); >>> >> >> The previous call to regmap_update_bits() was unsetting RG_TEST_ON >> and RE_SW_RESET >> while setting RG_TEST_TYPE: using regmap_write() ensures that we do >> exactly the >> same, without the overhead of performing the additional register read >> and bit >> swapping operations. >> >> Using the proposed regmap_set_bits() would change the behavior of >> this flow, which >> may result in unexpected hardware behavior, as we wouldn't be >> unsetting the >> previously mentioned two bits. >> >> Regards, >> Angelo > > > It's unclear why the original author chose a mask value of 0xffff, but > remap_write() also clears the higher 16 bits which differs from the > original logic. > > The comment for that line states 'set test type to synchronizer pulse', > so I suggest updating only BIT2 here. Additionally, I checked datasheet > for other two bits, which have default values of 0. > > However, I came across an internal codebase that used regmap_write(), > so it should be a safe implementation. If you think regmap_write() is > better, it's ok with me. > Yes, using regmap_write() here is better. Thanks, Angelo > Thanks, > Trevor > >> >>> 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 >> >> >>
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@mediatek.com> */ +#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); 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)
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@collabora.com> --- sound/soc/mediatek/mt8188/mt8188-mt6359.c | 32 ++++++++++++++--------- 1 file changed, 19 insertions(+), 13 deletions(-)