linux-kernel - [PATCH v4 43/48] iio: adc: ti_am335x_adc: Add a unit to the timeout delay

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Date:   Tue, 28 Sep 2021 15:31:38 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Lee Jones <lee.jones@...aro.org>
Cc:     Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Rob Herring <robh+dt@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        bcousson@...libre.com, Tony Lindgren <tony@...mide.com>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-omap@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Tero Kristo <kristo@...nel.org>,
        Ryan Barnett <ryan.barnett@...lins.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Jason Reeder <jreeder@...com>, <linux-kernel@...r.kernel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH v4 43/48] iio: adc: ti_am335x_adc: Add a unit to the timeout delay

The lack of unit in the macro name kind of tricked me when I was
troubleshooting an issue. Physical constants should always get a unit.

Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
 drivers/iio/adc/ti_am335x_adc.c      | 4 ++--
 include/linux/mfd/ti_am335x_tscadc.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 6f47a1ace3d4..e7dba10b29b4 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -101,7 +101,7 @@ static int tiadc_wait_idle(struct tiadc_device *adc_dev)
 
 	return readl_poll_timeout(adc_dev->mfd_tscadc->tscadc_base + REG_ADCFSM,
 				  val, !(val & SEQ_STATUS), 10,
-				  IDLE_TIMEOUT * 1000 * adc_dev->channels);
+				  IDLE_TIMEOUT_MS * 1000 * adc_dev->channels);
 }
 
 static void tiadc_step_config(struct iio_dev *indio_dev)
@@ -461,7 +461,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 	am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en);
 
 	/* Wait for Fifo threshold interrupt */
-	timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT * adc_dev->channels);
+	timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT_MS * adc_dev->channels);
 	while (1) {
 		fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
 		if (fifo1count)
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index 5225e3fc194d..ba13e043d910 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -141,7 +141,7 @@
  *
  * max processing time: 266431 * 308ns = 83ms(approx)
  */
-#define IDLE_TIMEOUT		83 /* milliseconds */
+#define IDLE_TIMEOUT_MS		83 /* milliseconds */
 
 #define TSCADC_CELLS		2
 
-- 
2.27.0