linux-i2c.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2)
@ 2021-03-31 10:46 Andy Shevchenko
  2021-03-31 14:09 ` Robert Foss
  2021-04-05 20:58 ` Wolfram Sang
  0 siblings, 2 replies; 3+ messages in thread
From: Andy Shevchenko @ 2021-03-31 10:46 UTC (permalink / raw)
  To: Andy Shevchenko, Wolfram Sang, Serge Semin, Khalil Blaiech,
	Loic Poulain, linux-i2c, linux-kernel, linux-arm-msm
  Cc: Jarkko Nikula, Mika Westerberg, Robert Foss, Wolfram Sang

Since we have generic definitions for bus frequencies, let's use them.

Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Khalil Blaiech <kblaiech@nvidia.com>
---
v2: added tag (Khalil), converted one missed place in DesignWare driver
 drivers/i2c/busses/i2c-designware-master.c |  2 +-
 drivers/i2c/busses/i2c-mlxbf.c             | 14 ++++----------
 drivers/i2c/busses/i2c-qcom-cci.c          |  4 ++--
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index dd27b9dbe931..3f4d2124e0fc 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -78,7 +78,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev)
 	 * difference is the timing parameter values since the registers are
 	 * the same.
 	 */
-	if (t->bus_freq_hz == 1000000) {
+	if (t->bus_freq_hz == I2C_MAX_FAST_MODE_PLUS_FREQ) {
 		/*
 		 * Check are Fast Mode Plus parameters available. Calculate
 		 * SCL timing parameters for Fast Mode Plus if not set.
diff --git a/drivers/i2c/busses/i2c-mlxbf.c b/drivers/i2c/busses/i2c-mlxbf.c
index 2fb0532d8a16..80ab831df349 100644
--- a/drivers/i2c/busses/i2c-mlxbf.c
+++ b/drivers/i2c/busses/i2c-mlxbf.c
@@ -172,12 +172,6 @@
 #define MLXBF_I2C_SMBUS_THIGH_MAX_TBUF            0x14
 #define MLXBF_I2C_SMBUS_SCL_LOW_TIMEOUT           0x18
 
-enum {
-	MLXBF_I2C_TIMING_100KHZ = 100000,
-	MLXBF_I2C_TIMING_400KHZ = 400000,
-	MLXBF_I2C_TIMING_1000KHZ = 1000000,
-};
-
 /*
  * Defines SMBus operating frequency and core clock frequency.
  * According to ADB files, default values are compliant to 100KHz SMBus
@@ -1202,7 +1196,7 @@ static int mlxbf_i2c_init_timings(struct platform_device *pdev,
 
 	ret = device_property_read_u32(dev, "clock-frequency", &config_khz);
 	if (ret < 0)
-		config_khz = MLXBF_I2C_TIMING_100KHZ;
+		config_khz = I2C_MAX_STANDARD_MODE_FREQ;
 
 	switch (config_khz) {
 	default:
@@ -1210,15 +1204,15 @@ static int mlxbf_i2c_init_timings(struct platform_device *pdev,
 		pr_warn("Illegal value %d: defaulting to 100 KHz\n",
 			config_khz);
 		fallthrough;
-	case MLXBF_I2C_TIMING_100KHZ:
+	case I2C_MAX_STANDARD_MODE_FREQ:
 		config_idx = MLXBF_I2C_TIMING_CONFIG_100KHZ;
 		break;
 
-	case MLXBF_I2C_TIMING_400KHZ:
+	case I2C_MAX_FAST_MODE_FREQ:
 		config_idx = MLXBF_I2C_TIMING_CONFIG_400KHZ;
 		break;
 
-	case MLXBF_I2C_TIMING_1000KHZ:
+	case I2C_MAX_FAST_MODE_PLUS_FREQ:
 		config_idx = MLXBF_I2C_TIMING_CONFIG_1000KHZ;
 		break;
 	}
diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index 1c259b5188de..c63d5545fc2a 100644
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -569,9 +569,9 @@ static int cci_probe(struct platform_device *pdev)
 		cci->master[idx].mode = I2C_MODE_STANDARD;
 		ret = of_property_read_u32(child, "clock-frequency", &val);
 		if (!ret) {
-			if (val == 400000)
+			if (val == I2C_MAX_FAST_MODE_FREQ)
 				cci->master[idx].mode = I2C_MODE_FAST;
-			else if (val == 1000000)
+			else if (val == I2C_MAX_FAST_MODE_PLUS_FREQ)
 				cci->master[idx].mode = I2C_MODE_FAST_PLUS;
 		}
 
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2)
  2021-03-31 10:46 [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2) Andy Shevchenko
@ 2021-03-31 14:09 ` Robert Foss
  2021-04-05 20:58 ` Wolfram Sang
  1 sibling, 0 replies; 3+ messages in thread
From: Robert Foss @ 2021-03-31 14:09 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Wolfram Sang, Serge Semin, Khalil Blaiech, Loic Poulain,
	linux-i2c, linux-kernel, MSM, Jarkko Nikula, Mika Westerberg,
	Wolfram Sang

Hey Andy,

This patch looks good to me.

Reviewed-by: Robert Foss <robert.foss@linaro.org>

On Wed, 31 Mar 2021 at 12:46, Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> Since we have generic definitions for bus frequencies, let's use them.
>
> Cc: Wolfram Sang <wsa@the-dreams.de>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Acked-by: Khalil Blaiech <kblaiech@nvidia.com>
> ---
> v2: added tag (Khalil), converted one missed place in DesignWare driver
>  drivers/i2c/busses/i2c-designware-master.c |  2 +-
>  drivers/i2c/busses/i2c-mlxbf.c             | 14 ++++----------
>  drivers/i2c/busses/i2c-qcom-cci.c          |  4 ++--
>  3 files changed, 7 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
> index dd27b9dbe931..3f4d2124e0fc 100644
> --- a/drivers/i2c/busses/i2c-designware-master.c
> +++ b/drivers/i2c/busses/i2c-designware-master.c
> @@ -78,7 +78,7 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev)
>          * difference is the timing parameter values since the registers are
>          * the same.
>          */
> -       if (t->bus_freq_hz == 1000000) {
> +       if (t->bus_freq_hz == I2C_MAX_FAST_MODE_PLUS_FREQ) {
>                 /*
>                  * Check are Fast Mode Plus parameters available. Calculate
>                  * SCL timing parameters for Fast Mode Plus if not set.
> diff --git a/drivers/i2c/busses/i2c-mlxbf.c b/drivers/i2c/busses/i2c-mlxbf.c
> index 2fb0532d8a16..80ab831df349 100644
> --- a/drivers/i2c/busses/i2c-mlxbf.c
> +++ b/drivers/i2c/busses/i2c-mlxbf.c
> @@ -172,12 +172,6 @@
>  #define MLXBF_I2C_SMBUS_THIGH_MAX_TBUF            0x14
>  #define MLXBF_I2C_SMBUS_SCL_LOW_TIMEOUT           0x18
>
> -enum {
> -       MLXBF_I2C_TIMING_100KHZ = 100000,
> -       MLXBF_I2C_TIMING_400KHZ = 400000,
> -       MLXBF_I2C_TIMING_1000KHZ = 1000000,
> -};
> -
>  /*
>   * Defines SMBus operating frequency and core clock frequency.
>   * According to ADB files, default values are compliant to 100KHz SMBus
> @@ -1202,7 +1196,7 @@ static int mlxbf_i2c_init_timings(struct platform_device *pdev,
>
>         ret = device_property_read_u32(dev, "clock-frequency", &config_khz);
>         if (ret < 0)
> -               config_khz = MLXBF_I2C_TIMING_100KHZ;
> +               config_khz = I2C_MAX_STANDARD_MODE_FREQ;
>
>         switch (config_khz) {
>         default:
> @@ -1210,15 +1204,15 @@ static int mlxbf_i2c_init_timings(struct platform_device *pdev,
>                 pr_warn("Illegal value %d: defaulting to 100 KHz\n",
>                         config_khz);
>                 fallthrough;
> -       case MLXBF_I2C_TIMING_100KHZ:
> +       case I2C_MAX_STANDARD_MODE_FREQ:
>                 config_idx = MLXBF_I2C_TIMING_CONFIG_100KHZ;
>                 break;
>
> -       case MLXBF_I2C_TIMING_400KHZ:
> +       case I2C_MAX_FAST_MODE_FREQ:
>                 config_idx = MLXBF_I2C_TIMING_CONFIG_400KHZ;
>                 break;
>
> -       case MLXBF_I2C_TIMING_1000KHZ:
> +       case I2C_MAX_FAST_MODE_PLUS_FREQ:
>                 config_idx = MLXBF_I2C_TIMING_CONFIG_1000KHZ;
>                 break;
>         }
> diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
> index 1c259b5188de..c63d5545fc2a 100644
> --- a/drivers/i2c/busses/i2c-qcom-cci.c
> +++ b/drivers/i2c/busses/i2c-qcom-cci.c
> @@ -569,9 +569,9 @@ static int cci_probe(struct platform_device *pdev)
>                 cci->master[idx].mode = I2C_MODE_STANDARD;
>                 ret = of_property_read_u32(child, "clock-frequency", &val);
>                 if (!ret) {
> -                       if (val == 400000)
> +                       if (val == I2C_MAX_FAST_MODE_FREQ)
>                                 cci->master[idx].mode = I2C_MODE_FAST;
> -                       else if (val == 1000000)
> +                       else if (val == I2C_MAX_FAST_MODE_PLUS_FREQ)
>                                 cci->master[idx].mode = I2C_MODE_FAST_PLUS;
>                 }
>
> --
> 2.30.2
>

^ permalink raw reply	[flat|nested] 3+ messages in thread
* Re: [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2)
  2021-03-31 10:46 [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2) Andy Shevchenko
  2021-03-31 14:09 ` Robert Foss
@ 2021-04-05 20:58 ` Wolfram Sang
  1 sibling, 0 replies; 3+ messages in thread
From: Wolfram Sang @ 2021-04-05 20:58 UTC (permalink / raw)
  To: Andy Shevchenko
  Cc: Serge Semin, Khalil Blaiech, Loic Poulain, linux-i2c,
	linux-kernel, linux-arm-msm, Jarkko Nikula, Mika Westerberg,
	Robert Foss

[-- Attachment #1: Type: text/plain, Size: 338 bytes --]

On Wed, Mar 31, 2021 at 01:46:22PM +0300, Andy Shevchenko wrote:
> Since we have generic definitions for bus frequencies, let's use them.
> 
> Cc: Wolfram Sang <wsa@the-dreams.de>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Acked-by: Khalil Blaiech <kblaiech@nvidia.com>

Applied to for-next, thanks!


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]

^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-04-05 20:58 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-31 10:46 [PATCH v2 1/1] i2c: drivers: Use generic definitions for bus frequencies (part 2) Andy Shevchenko
2021-03-31 14:09 ` Robert Foss
2021-04-05 20:58 ` Wolfram Sang

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).