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* [PATCH v2] iio/mlx90632: restyle mlx90632
@ 2021-10-22  4:09 Yanteng Si
  2021-10-25 22:02 ` Crt Mori
  0 siblings, 1 reply; 3+ messages in thread
From: Yanteng Si @ 2021-10-22  4:09 UTC (permalink / raw)
  To: jic23, cmo, lars; +Cc: Yanteng Si, linux-iio, sterlingteng, chenhuacai

ref: Documentation/process/coding-style.rst:
C programmers do not use cute names like ThisVariableIsATemporaryCounter

so,restyle mlx90632 driver.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
---
v1:

Restyle the whole driver under Crt's advice.

 drivers/iio/temperature/mlx90632.c | 80 +++++++++++++++---------------
 1 file changed, 40 insertions(+), 40 deletions(-)

diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index 608ccb1d8bc8..17b47f5d1742 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -480,11 +480,11 @@ static int mlx90632_read_ee_register(struct regmap *regmap, u16 reg_lsb,
 static s64 mlx90632_preprocess_temp_amb(s16 ambient_new_raw,
 					s16 ambient_old_raw, s16 Gb)
 {
-	s64 VR_Ta, kGb, tmp;
+	s64 VR_Ta, k_Gb, tmp;
 
-	kGb = ((s64)Gb * 1000LL) >> 10ULL;
+	k_Gb = ((s64)Gb * 1000LL) >> 10ULL;
 	VR_Ta = (s64)ambient_old_raw * 1000000LL +
-		kGb * div64_s64(((s64)ambient_new_raw * 1000LL),
+		k_Gb * div64_s64(((s64)ambient_new_raw * 1000LL),
 			(MLX90632_REF_3));
 	tmp = div64_s64(
 			 div64_s64(((s64)ambient_new_raw * 1000000000000LL),
@@ -496,11 +496,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
 					s16 ambient_new_raw,
 					s16 ambient_old_raw, s16 Ka)
 {
-	s64 VR_IR, kKa, tmp;
+	s64 VR_IR, k_Ka, tmp;
 
-	kKa = ((s64)Ka * 1000LL) >> 10ULL;
+	k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
 	VR_IR = (s64)ambient_old_raw * 1000000LL +
-		kKa * div64_s64(((s64)ambient_new_raw * 1000LL),
+		k_Ka * div64_s64(((s64)ambient_new_raw * 1000LL),
 			(MLX90632_REF_3));
 	tmp = div64_s64(
 			div64_s64(((s64)((object_new_raw + object_old_raw) / 2)
@@ -512,11 +512,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
 static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient_new_raw,
 						 s16 ambient_old_raw, s16 Ka)
 {
-	s64 VR_IR, kKa, tmp;
+	s64 VR_IR, k_Ka, tmp;
 
-	kKa = ((s64)Ka * 1000LL) >> 10ULL;
+	k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
 	VR_IR = (s64)ambient_old_raw * 1000000LL +
-		kKa * div64_s64((s64)ambient_new_raw * 1000LL,
+		k_Ka * div64_s64((s64)ambient_new_raw * 1000LL,
 				MLX90632_REF_3);
 	tmp = div64_s64(
 			div64_s64((s64) object_new_raw * 1000000000000LL, MLX90632_REF_12),
@@ -527,70 +527,70 @@ static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient
 static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw,
 				      s32 P_T, s32 P_R, s32 P_G, s32 P_O, s16 Gb)
 {
-	s64 Asub, Bsub, Ablock, Bblock, Cblock, AMB, sum;
+	s64 A_sub, B_sub, A_block, B_block, C_block, AMB, sum;
 
 	AMB = mlx90632_preprocess_temp_amb(ambient_new_raw, ambient_old_raw,
 					   Gb);
-	Asub = ((s64)P_T * 10000000000LL) >> 44ULL;
-	Bsub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
-	Ablock = Asub * (Bsub * Bsub);
-	Bblock = (div64_s64(Bsub * 10000000LL, P_G)) << 20ULL;
-	Cblock = ((s64)P_O * 10000000000LL) >> 8ULL;
+	A_sub = ((s64)P_T * 10000000000LL) >> 44ULL;
+	B_sub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
+	A_block = A_sub * (B_sub * B_sub);
+	B_block = (div64_s64(B_sub * 10000000LL, P_G)) << 20ULL;
+	C_block = ((s64)P_O * 10000000000LL) >> 8ULL;
 
-	sum = div64_s64(Ablock, 1000000LL) + Bblock + Cblock;
+	sum = div64_s64(A_block, 1000000LL) + B_block + C_block;
 
 	return div64_s64(sum, 10000000LL);
 }
 
 static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object,
-					       s64 TAdut, s64 TAdut4, s32 Fa, s32 Fb,
+					       s64 TA_dut, s64 TA_dut4, s32 Fa, s32 Fb,
 					       s32 Ga, s16 Ha, s16 Hb,
 					       u16 emissivity)
 {
-	s64 calcedKsTO, calcedKsTA, ir_Alpha, Alpha_corr;
+	s64 calced_Ks_TO, calced_Ks_TA, ir_Alpha, Alpha_corr;
 	s64 Ha_customer, Hb_customer;
 
 	Ha_customer = ((s64)Ha * 1000000LL) >> 14ULL;
 	Hb_customer = ((s64)Hb * 100) >> 10ULL;
 
-	calcedKsTO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
+	calced_Ks_TO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
 			     * 1000LL)) >> 36LL;
-	calcedKsTA = ((s64)(Fb * (TAdut - 25 * 1000000LL))) >> 36LL;
+	calced_Ks_TA = ((s64)(Fb * (TA_dut - 25 * 1000000LL))) >> 36LL;
 	Alpha_corr = div64_s64((((s64)(Fa * 10000000000LL) >> 46LL)
 				* Ha_customer), 1000LL);
-	Alpha_corr *= ((s64)(1 * 1000000LL + calcedKsTO + calcedKsTA));
+	Alpha_corr *= ((s64)(1 * 1000000LL + calced_Ks_TO + calced_Ks_TA));
 	Alpha_corr = emissivity * div64_s64(Alpha_corr, 100000LL);
 	Alpha_corr = div64_s64(Alpha_corr, 1000LL);
 	ir_Alpha = div64_s64((s64)object * 10000000LL, Alpha_corr);
 
-	return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TAdut4))
+	return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TA_dut4))
 		- 27315 - Hb_customer) * 10;
 }
 
-static s64 mlx90632_calc_ta4(s64 TAdut, s64 scale)
+static s64 mlx90632_calc_ta4(s64 TA_dut, s64 scale)
 {
-	return (div64_s64(TAdut, scale) + 27315) *
-		(div64_s64(TAdut, scale) + 27315) *
-		(div64_s64(TAdut, scale) + 27315) *
-		(div64_s64(TAdut, scale) + 27315);
+	return (div64_s64(TA_dut, scale) + 27315) *
+		(div64_s64(TA_dut, scale) + 27315) *
+		(div64_s64(TA_dut, scale) + 27315) *
+		(div64_s64(TA_dut, scale) + 27315);
 }
 
 static s32 mlx90632_calc_temp_object(s64 object, s64 ambient, s32 Ea, s32 Eb,
 				     s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb,
 				     u16 tmp_emi)
 {
-	s64 kTA, kTA0, TAdut, TAdut4;
+	s64 k_TA, k_TA0, TA_dut, TA_dut4;
 	s64 temp = 25000;
 	s8 i;
 
-	kTA = (Ea * 1000LL) >> 16LL;
-	kTA0 = (Eb * 1000LL) >> 8LL;
-	TAdut = div64_s64(((ambient - kTA0) * 1000000LL), kTA) + 25 * 1000000LL;
-	TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
+	k_TA = (Ea * 1000LL) >> 16LL;
+	k_TA0 = (Eb * 1000LL) >> 8LL;
+	TA_dut = div64_s64(((ambient - k_TA0) * 1000000LL), k_TA) + 25 * 1000000LL;
+	TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
 
 	/* Iterations of calculation as described in datasheet */
 	for (i = 0; i < 5; ++i) {
-		temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TAdut4,
+		temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, TA_dut4,
 							   Fa, Fb, Ga, Ha, Hb,
 							   tmp_emi);
 	}
@@ -601,20 +601,20 @@ static s32 mlx90632_calc_temp_object_extended(s64 object, s64 ambient, s64 refle
 					      s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga,
 					      s16 Ha, s16 Hb, u16 tmp_emi)
 {
-	s64 kTA, kTA0, TAdut, TAdut4, Tr4, TaTr4;
+	s64 k_TA, k_TA0, TA_dut, TA_dut4, Tr4, Ta_Tr4;
 	s64 temp = 25000;
 	s8 i;
 
-	kTA = (Ea * 1000LL) >> 16LL;
-	kTA0 = (Eb * 1000LL) >> 8LL;
-	TAdut = div64_s64((ambient - kTA0) * 1000000LL, kTA) + 25 * 1000000LL;
+	k_TA = (Ea * 1000LL) >> 16LL;
+	k_TA0 = (Eb * 1000LL) >> 8LL;
+	TA_dut = div64_s64((ambient - k_TA0) * 1000000LL, k_TA) + 25 * 1000000LL;
 	Tr4 = mlx90632_calc_ta4(reflected, 10);
-	TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
-	TaTr4 = Tr4 - div64_s64(Tr4 - TAdut4, tmp_emi) * 1000;
+	TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
+	Ta_Tr4 = Tr4 - div64_s64(Tr4 - TA_dut4, tmp_emi) * 1000;
 
 	/* Iterations of calculation as described in datasheet */
 	for (i = 0; i < 5; ++i) {
-		temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TaTr4,
+		temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, Ta_Tr4,
 							   Fa / 2, Fb, Ga, Ha, Hb,
 							   tmp_emi);
 	}
-- 
2.27.0


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH v2] iio/mlx90632: restyle mlx90632
  2021-10-22  4:09 [PATCH v2] iio/mlx90632: restyle mlx90632 Yanteng Si
@ 2021-10-25 22:02 ` Crt Mori
  2021-12-05 19:37   ` Jonathan Cameron
  0 siblings, 1 reply; 3+ messages in thread
From: Crt Mori @ 2021-10-25 22:02 UTC (permalink / raw)
  To: Yanteng Si; +Cc: jic23, lars, Yanteng Si, linux-iio, sterlingteng, chenhuacai

If this renaming brings any value then

Acked-by: Crt Mori <cmo@melexis.com>


On Fri, 22 Oct 2021 at 06:10, Yanteng Si <siyanteng01@gmail.com> wrote:
>
> ref: Documentation/process/coding-style.rst:
> C programmers do not use cute names like ThisVariableIsATemporaryCounter
>
> so,restyle mlx90632 driver.
>
> Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
> ---
> v1:
>
> Restyle the whole driver under Crt's advice.
>
>  drivers/iio/temperature/mlx90632.c | 80 +++++++++++++++---------------
>  1 file changed, 40 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
> index 608ccb1d8bc8..17b47f5d1742 100644
> --- a/drivers/iio/temperature/mlx90632.c
> +++ b/drivers/iio/temperature/mlx90632.c
> @@ -480,11 +480,11 @@ static int mlx90632_read_ee_register(struct regmap *regmap, u16 reg_lsb,
>  static s64 mlx90632_preprocess_temp_amb(s16 ambient_new_raw,
>                                         s16 ambient_old_raw, s16 Gb)
>  {
> -       s64 VR_Ta, kGb, tmp;
> +       s64 VR_Ta, k_Gb, tmp;
>
> -       kGb = ((s64)Gb * 1000LL) >> 10ULL;
> +       k_Gb = ((s64)Gb * 1000LL) >> 10ULL;
>         VR_Ta = (s64)ambient_old_raw * 1000000LL +
> -               kGb * div64_s64(((s64)ambient_new_raw * 1000LL),
> +               k_Gb * div64_s64(((s64)ambient_new_raw * 1000LL),
>                         (MLX90632_REF_3));
>         tmp = div64_s64(
>                          div64_s64(((s64)ambient_new_raw * 1000000000000LL),
> @@ -496,11 +496,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
>                                         s16 ambient_new_raw,
>                                         s16 ambient_old_raw, s16 Ka)
>  {
> -       s64 VR_IR, kKa, tmp;
> +       s64 VR_IR, k_Ka, tmp;
>
> -       kKa = ((s64)Ka * 1000LL) >> 10ULL;
> +       k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
>         VR_IR = (s64)ambient_old_raw * 1000000LL +
> -               kKa * div64_s64(((s64)ambient_new_raw * 1000LL),
> +               k_Ka * div64_s64(((s64)ambient_new_raw * 1000LL),
>                         (MLX90632_REF_3));
>         tmp = div64_s64(
>                         div64_s64(((s64)((object_new_raw + object_old_raw) / 2)
> @@ -512,11 +512,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
>  static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient_new_raw,
>                                                  s16 ambient_old_raw, s16 Ka)
>  {
> -       s64 VR_IR, kKa, tmp;
> +       s64 VR_IR, k_Ka, tmp;
>
> -       kKa = ((s64)Ka * 1000LL) >> 10ULL;
> +       k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
>         VR_IR = (s64)ambient_old_raw * 1000000LL +
> -               kKa * div64_s64((s64)ambient_new_raw * 1000LL,
> +               k_Ka * div64_s64((s64)ambient_new_raw * 1000LL,
>                                 MLX90632_REF_3);
>         tmp = div64_s64(
>                         div64_s64((s64) object_new_raw * 1000000000000LL, MLX90632_REF_12),
> @@ -527,70 +527,70 @@ static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient
>  static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw,
>                                       s32 P_T, s32 P_R, s32 P_G, s32 P_O, s16 Gb)
>  {
> -       s64 Asub, Bsub, Ablock, Bblock, Cblock, AMB, sum;
> +       s64 A_sub, B_sub, A_block, B_block, C_block, AMB, sum;
>
>         AMB = mlx90632_preprocess_temp_amb(ambient_new_raw, ambient_old_raw,
>                                            Gb);
> -       Asub = ((s64)P_T * 10000000000LL) >> 44ULL;
> -       Bsub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
> -       Ablock = Asub * (Bsub * Bsub);
> -       Bblock = (div64_s64(Bsub * 10000000LL, P_G)) << 20ULL;
> -       Cblock = ((s64)P_O * 10000000000LL) >> 8ULL;
> +       A_sub = ((s64)P_T * 10000000000LL) >> 44ULL;
> +       B_sub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
> +       A_block = A_sub * (B_sub * B_sub);
> +       B_block = (div64_s64(B_sub * 10000000LL, P_G)) << 20ULL;
> +       C_block = ((s64)P_O * 10000000000LL) >> 8ULL;
>
> -       sum = div64_s64(Ablock, 1000000LL) + Bblock + Cblock;
> +       sum = div64_s64(A_block, 1000000LL) + B_block + C_block;
>
>         return div64_s64(sum, 10000000LL);
>  }
>
>  static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object,
> -                                              s64 TAdut, s64 TAdut4, s32 Fa, s32 Fb,
> +                                              s64 TA_dut, s64 TA_dut4, s32 Fa, s32 Fb,
>                                                s32 Ga, s16 Ha, s16 Hb,
>                                                u16 emissivity)
>  {
> -       s64 calcedKsTO, calcedKsTA, ir_Alpha, Alpha_corr;
> +       s64 calced_Ks_TO, calced_Ks_TA, ir_Alpha, Alpha_corr;
>         s64 Ha_customer, Hb_customer;
>
>         Ha_customer = ((s64)Ha * 1000000LL) >> 14ULL;
>         Hb_customer = ((s64)Hb * 100) >> 10ULL;
>
> -       calcedKsTO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
> +       calced_Ks_TO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
>                              * 1000LL)) >> 36LL;
> -       calcedKsTA = ((s64)(Fb * (TAdut - 25 * 1000000LL))) >> 36LL;
> +       calced_Ks_TA = ((s64)(Fb * (TA_dut - 25 * 1000000LL))) >> 36LL;
>         Alpha_corr = div64_s64((((s64)(Fa * 10000000000LL) >> 46LL)
>                                 * Ha_customer), 1000LL);
> -       Alpha_corr *= ((s64)(1 * 1000000LL + calcedKsTO + calcedKsTA));
> +       Alpha_corr *= ((s64)(1 * 1000000LL + calced_Ks_TO + calced_Ks_TA));
>         Alpha_corr = emissivity * div64_s64(Alpha_corr, 100000LL);
>         Alpha_corr = div64_s64(Alpha_corr, 1000LL);
>         ir_Alpha = div64_s64((s64)object * 10000000LL, Alpha_corr);
>
> -       return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TAdut4))
> +       return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TA_dut4))
>                 - 27315 - Hb_customer) * 10;
>  }
>
> -static s64 mlx90632_calc_ta4(s64 TAdut, s64 scale)
> +static s64 mlx90632_calc_ta4(s64 TA_dut, s64 scale)
>  {
> -       return (div64_s64(TAdut, scale) + 27315) *
> -               (div64_s64(TAdut, scale) + 27315) *
> -               (div64_s64(TAdut, scale) + 27315) *
> -               (div64_s64(TAdut, scale) + 27315);
> +       return (div64_s64(TA_dut, scale) + 27315) *
> +               (div64_s64(TA_dut, scale) + 27315) *
> +               (div64_s64(TA_dut, scale) + 27315) *
> +               (div64_s64(TA_dut, scale) + 27315);
>  }
>
>  static s32 mlx90632_calc_temp_object(s64 object, s64 ambient, s32 Ea, s32 Eb,
>                                      s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb,
>                                      u16 tmp_emi)
>  {
> -       s64 kTA, kTA0, TAdut, TAdut4;
> +       s64 k_TA, k_TA0, TA_dut, TA_dut4;
>         s64 temp = 25000;
>         s8 i;
>
> -       kTA = (Ea * 1000LL) >> 16LL;
> -       kTA0 = (Eb * 1000LL) >> 8LL;
> -       TAdut = div64_s64(((ambient - kTA0) * 1000000LL), kTA) + 25 * 1000000LL;
> -       TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
> +       k_TA = (Ea * 1000LL) >> 16LL;
> +       k_TA0 = (Eb * 1000LL) >> 8LL;
> +       TA_dut = div64_s64(((ambient - k_TA0) * 1000000LL), k_TA) + 25 * 1000000LL;
> +       TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
>
>         /* Iterations of calculation as described in datasheet */
>         for (i = 0; i < 5; ++i) {
> -               temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TAdut4,
> +               temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, TA_dut4,
>                                                            Fa, Fb, Ga, Ha, Hb,
>                                                            tmp_emi);
>         }
> @@ -601,20 +601,20 @@ static s32 mlx90632_calc_temp_object_extended(s64 object, s64 ambient, s64 refle
>                                               s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga,
>                                               s16 Ha, s16 Hb, u16 tmp_emi)
>  {
> -       s64 kTA, kTA0, TAdut, TAdut4, Tr4, TaTr4;
> +       s64 k_TA, k_TA0, TA_dut, TA_dut4, Tr4, Ta_Tr4;
>         s64 temp = 25000;
>         s8 i;
>
> -       kTA = (Ea * 1000LL) >> 16LL;
> -       kTA0 = (Eb * 1000LL) >> 8LL;
> -       TAdut = div64_s64((ambient - kTA0) * 1000000LL, kTA) + 25 * 1000000LL;
> +       k_TA = (Ea * 1000LL) >> 16LL;
> +       k_TA0 = (Eb * 1000LL) >> 8LL;
> +       TA_dut = div64_s64((ambient - k_TA0) * 1000000LL, k_TA) + 25 * 1000000LL;
>         Tr4 = mlx90632_calc_ta4(reflected, 10);
> -       TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
> -       TaTr4 = Tr4 - div64_s64(Tr4 - TAdut4, tmp_emi) * 1000;
> +       TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
> +       Ta_Tr4 = Tr4 - div64_s64(Tr4 - TA_dut4, tmp_emi) * 1000;
>
>         /* Iterations of calculation as described in datasheet */
>         for (i = 0; i < 5; ++i) {
> -               temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TaTr4,
> +               temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, Ta_Tr4,
>                                                            Fa / 2, Fb, Ga, Ha, Hb,
>                                                            tmp_emi);
>         }
> --
> 2.27.0
>

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v2] iio/mlx90632: restyle mlx90632
  2021-10-25 22:02 ` Crt Mori
@ 2021-12-05 19:37   ` Jonathan Cameron
  0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Cameron @ 2021-12-05 19:37 UTC (permalink / raw)
  To: Crt Mori
  Cc: Yanteng Si, lars, Yanteng Si, linux-iio, sterlingteng, chenhuacai

On Tue, 26 Oct 2021 00:02:47 +0200
Crt Mori <cmo@melexis.com> wrote:

> If this renaming brings any value then
> 
> Acked-by: Crt Mori <cmo@melexis.com>
> 
> 
> On Fri, 22 Oct 2021 at 06:10, Yanteng Si <siyanteng01@gmail.com> wrote:
> >
> > ref: Documentation/process/coding-style.rst:
> > C programmers do not use cute names like ThisVariableIsATemporaryCounter
> >
> > so,restyle mlx90632 driver.

Sorry for slow reply on this.  It kept falling to the back of my queue
because I couldn't immediately figure out what the 'scheme' you have
chosen for labeling these is.

The intent of that rule in coding-style is to move away from camelCase
on the basis the kernel style prefers _ to break up elements of a name.

What you end up with here is a weird mixture of using capitals and _
It is not as valid fix to just put a _ before any capital.

So what set of 'rules' have you applied to end up with this naming?

Right now, I don't see any value in this change.

Jonathan

> >
> > Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
> > ---
> > v1:
> >
> > Restyle the whole driver under Crt's advice.
> >
> >  drivers/iio/temperature/mlx90632.c | 80 +++++++++++++++---------------
> >  1 file changed, 40 insertions(+), 40 deletions(-)
> >
> > diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
> > index 608ccb1d8bc8..17b47f5d1742 100644
> > --- a/drivers/iio/temperature/mlx90632.c
> > +++ b/drivers/iio/temperature/mlx90632.c
> > @@ -480,11 +480,11 @@ static int mlx90632_read_ee_register(struct regmap *regmap, u16 reg_lsb,
> >  static s64 mlx90632_preprocess_temp_amb(s16 ambient_new_raw,
> >                                         s16 ambient_old_raw, s16 Gb)
> >  {
> > -       s64 VR_Ta, kGb, tmp;
> > +       s64 VR_Ta, k_Gb, tmp;
> >
> > -       kGb = ((s64)Gb * 1000LL) >> 10ULL;
> > +       k_Gb = ((s64)Gb * 1000LL) >> 10ULL;
> >         VR_Ta = (s64)ambient_old_raw * 1000000LL +
> > -               kGb * div64_s64(((s64)ambient_new_raw * 1000LL),
> > +               k_Gb * div64_s64(((s64)ambient_new_raw * 1000LL),
> >                         (MLX90632_REF_3));
> >         tmp = div64_s64(
> >                          div64_s64(((s64)ambient_new_raw * 1000000000000LL),
> > @@ -496,11 +496,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
> >                                         s16 ambient_new_raw,
> >                                         s16 ambient_old_raw, s16 Ka)
> >  {
> > -       s64 VR_IR, kKa, tmp;
> > +       s64 VR_IR, k_Ka, tmp;
> >
> > -       kKa = ((s64)Ka * 1000LL) >> 10ULL;
> > +       k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
> >         VR_IR = (s64)ambient_old_raw * 1000000LL +
> > -               kKa * div64_s64(((s64)ambient_new_raw * 1000LL),
> > +               k_Ka * div64_s64(((s64)ambient_new_raw * 1000LL),
> >                         (MLX90632_REF_3));
> >         tmp = div64_s64(
> >                         div64_s64(((s64)((object_new_raw + object_old_raw) / 2)
> > @@ -512,11 +512,11 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw,
> >  static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient_new_raw,
> >                                                  s16 ambient_old_raw, s16 Ka)
> >  {
> > -       s64 VR_IR, kKa, tmp;
> > +       s64 VR_IR, k_Ka, tmp;
> >
> > -       kKa = ((s64)Ka * 1000LL) >> 10ULL;
> > +       k_Ka = ((s64)Ka * 1000LL) >> 10ULL;
> >         VR_IR = (s64)ambient_old_raw * 1000000LL +
> > -               kKa * div64_s64((s64)ambient_new_raw * 1000LL,
> > +               k_Ka * div64_s64((s64)ambient_new_raw * 1000LL,
> >                                 MLX90632_REF_3);
> >         tmp = div64_s64(
> >                         div64_s64((s64) object_new_raw * 1000000000000LL, MLX90632_REF_12),
> > @@ -527,70 +527,70 @@ static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient
> >  static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw,
> >                                       s32 P_T, s32 P_R, s32 P_G, s32 P_O, s16 Gb)
> >  {
> > -       s64 Asub, Bsub, Ablock, Bblock, Cblock, AMB, sum;
> > +       s64 A_sub, B_sub, A_block, B_block, C_block, AMB, sum;
> >
> >         AMB = mlx90632_preprocess_temp_amb(ambient_new_raw, ambient_old_raw,
> >                                            Gb);
> > -       Asub = ((s64)P_T * 10000000000LL) >> 44ULL;
> > -       Bsub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
> > -       Ablock = Asub * (Bsub * Bsub);
> > -       Bblock = (div64_s64(Bsub * 10000000LL, P_G)) << 20ULL;
> > -       Cblock = ((s64)P_O * 10000000000LL) >> 8ULL;
> > +       A_sub = ((s64)P_T * 10000000000LL) >> 44ULL;
> > +       B_sub = AMB - (((s64)P_R * 1000LL) >> 8ULL);
> > +       A_block = A_sub * (B_sub * B_sub);
> > +       B_block = (div64_s64(B_sub * 10000000LL, P_G)) << 20ULL;
> > +       C_block = ((s64)P_O * 10000000000LL) >> 8ULL;
> >
> > -       sum = div64_s64(Ablock, 1000000LL) + Bblock + Cblock;
> > +       sum = div64_s64(A_block, 1000000LL) + B_block + C_block;
> >
> >         return div64_s64(sum, 10000000LL);
> >  }
> >
> >  static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object,
> > -                                              s64 TAdut, s64 TAdut4, s32 Fa, s32 Fb,
> > +                                              s64 TA_dut, s64 TA_dut4, s32 Fa, s32 Fb,
> >                                                s32 Ga, s16 Ha, s16 Hb,
> >                                                u16 emissivity)
> >  {
> > -       s64 calcedKsTO, calcedKsTA, ir_Alpha, Alpha_corr;
> > +       s64 calced_Ks_TO, calced_Ks_TA, ir_Alpha, Alpha_corr;
> >         s64 Ha_customer, Hb_customer;
> >
> >         Ha_customer = ((s64)Ha * 1000000LL) >> 14ULL;
> >         Hb_customer = ((s64)Hb * 100) >> 10ULL;
> >
> > -       calcedKsTO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
> > +       calced_Ks_TO = ((s64)((s64)Ga * (prev_object_temp - 25 * 1000LL)
> >                              * 1000LL)) >> 36LL;
> > -       calcedKsTA = ((s64)(Fb * (TAdut - 25 * 1000000LL))) >> 36LL;
> > +       calced_Ks_TA = ((s64)(Fb * (TA_dut - 25 * 1000000LL))) >> 36LL;
> >         Alpha_corr = div64_s64((((s64)(Fa * 10000000000LL) >> 46LL)
> >                                 * Ha_customer), 1000LL);
> > -       Alpha_corr *= ((s64)(1 * 1000000LL + calcedKsTO + calcedKsTA));
> > +       Alpha_corr *= ((s64)(1 * 1000000LL + calced_Ks_TO + calced_Ks_TA));
> >         Alpha_corr = emissivity * div64_s64(Alpha_corr, 100000LL);
> >         Alpha_corr = div64_s64(Alpha_corr, 1000LL);
> >         ir_Alpha = div64_s64((s64)object * 10000000LL, Alpha_corr);
> >
> > -       return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TAdut4))
> > +       return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TA_dut4))
> >                 - 27315 - Hb_customer) * 10;
> >  }
> >
> > -static s64 mlx90632_calc_ta4(s64 TAdut, s64 scale)
> > +static s64 mlx90632_calc_ta4(s64 TA_dut, s64 scale)
> >  {
> > -       return (div64_s64(TAdut, scale) + 27315) *
> > -               (div64_s64(TAdut, scale) + 27315) *
> > -               (div64_s64(TAdut, scale) + 27315) *
> > -               (div64_s64(TAdut, scale) + 27315);
> > +       return (div64_s64(TA_dut, scale) + 27315) *
> > +               (div64_s64(TA_dut, scale) + 27315) *
> > +               (div64_s64(TA_dut, scale) + 27315) *
> > +               (div64_s64(TA_dut, scale) + 27315);
> >  }
> >
> >  static s32 mlx90632_calc_temp_object(s64 object, s64 ambient, s32 Ea, s32 Eb,
> >                                      s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb,
> >                                      u16 tmp_emi)
> >  {
> > -       s64 kTA, kTA0, TAdut, TAdut4;
> > +       s64 k_TA, k_TA0, TA_dut, TA_dut4;
> >         s64 temp = 25000;
> >         s8 i;
> >
> > -       kTA = (Ea * 1000LL) >> 16LL;
> > -       kTA0 = (Eb * 1000LL) >> 8LL;
> > -       TAdut = div64_s64(((ambient - kTA0) * 1000000LL), kTA) + 25 * 1000000LL;
> > -       TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
> > +       k_TA = (Ea * 1000LL) >> 16LL;
> > +       k_TA0 = (Eb * 1000LL) >> 8LL;
> > +       TA_dut = div64_s64(((ambient - k_TA0) * 1000000LL), k_TA) + 25 * 1000000LL;
> > +       TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
> >
> >         /* Iterations of calculation as described in datasheet */
> >         for (i = 0; i < 5; ++i) {
> > -               temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TAdut4,
> > +               temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, TA_dut4,
> >                                                            Fa, Fb, Ga, Ha, Hb,
> >                                                            tmp_emi);
> >         }
> > @@ -601,20 +601,20 @@ static s32 mlx90632_calc_temp_object_extended(s64 object, s64 ambient, s64 refle
> >                                               s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga,
> >                                               s16 Ha, s16 Hb, u16 tmp_emi)
> >  {
> > -       s64 kTA, kTA0, TAdut, TAdut4, Tr4, TaTr4;
> > +       s64 k_TA, k_TA0, TA_dut, TA_dut4, Tr4, Ta_Tr4;
> >         s64 temp = 25000;
> >         s8 i;
> >
> > -       kTA = (Ea * 1000LL) >> 16LL;
> > -       kTA0 = (Eb * 1000LL) >> 8LL;
> > -       TAdut = div64_s64((ambient - kTA0) * 1000000LL, kTA) + 25 * 1000000LL;
> > +       k_TA = (Ea * 1000LL) >> 16LL;
> > +       k_TA0 = (Eb * 1000LL) >> 8LL;
> > +       TA_dut = div64_s64((ambient - k_TA0) * 1000000LL, k_TA) + 25 * 1000000LL;
> >         Tr4 = mlx90632_calc_ta4(reflected, 10);
> > -       TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL);
> > -       TaTr4 = Tr4 - div64_s64(Tr4 - TAdut4, tmp_emi) * 1000;
> > +       TA_dut4 = mlx90632_calc_ta4(TA_dut, 10000LL);
> > +       Ta_Tr4 = Tr4 - div64_s64(Tr4 - TA_dut4, tmp_emi) * 1000;
> >
> >         /* Iterations of calculation as described in datasheet */
> >         for (i = 0; i < 5; ++i) {
> > -               temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TaTr4,
> > +               temp = mlx90632_calc_temp_object_iteration(temp, object, TA_dut, Ta_Tr4,
> >                                                            Fa / 2, Fb, Ga, Ha, Hb,
> >                                                            tmp_emi);
> >         }
> > --
> > 2.27.0
> >  


^ permalink raw reply	[flat|nested] 3+ messages in thread

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2021-10-22  4:09 [PATCH v2] iio/mlx90632: restyle mlx90632 Yanteng Si
2021-10-25 22:02 ` Crt Mori
2021-12-05 19:37   ` Jonathan Cameron

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