linux-kernel - [PATCH] staging: vt6656: Use defines in vnt_mac_reg_bits

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Message-Id: <20200328095433.7879-1-oscar.carter@gmx.com>
Date:   Sat, 28 Mar 2020 10:54:33 +0100
From:   Oscar Carter <oscar.carter@....com>
To:     Forest Bond <forest@...ttletooquiet.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Malcolm Priestley <tvboxspy@...il.com>,
        Oscar Carter <oscar.carter@....com>,
        Quentin Deslandes <quentin.deslandes@...ev.co.uk>,
        Amir Mahdi Ghorbanian <indigoomega021@...il.com>,
        Colin Ian King <colin.king@...onical.com>,
        Gabriela Bittencourt <gabrielabittencourt00@...il.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: [PATCH] staging: vt6656: Use defines in vnt_mac_reg_bits_* functions

Define the necessary bits in the CHANNEL, PAPEDELAY and GPIOCTL0
registers to can use them in the calls to vnt_mac_reg_bits_on and
vnt_mac_reg_bits_off functions. In this way, avoid the use of BIT()
macros and clarify the code.

Fixes: 3017e587e368 ("staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions")
Suggested-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Oscar Carter <oscar.carter@....com>
---
 drivers/staging/vt6656/baseband.c |  6 ++++--
 drivers/staging/vt6656/card.c     |  3 +--
 drivers/staging/vt6656/mac.h      | 12 ++++++++++++
 drivers/staging/vt6656/main_usb.c |  2 +-
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index a19a563d8bcc..dd3c3bf5e8b5 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -442,7 +442,8 @@ int vnt_vt3184_init(struct vnt_private *priv)
 		if (ret)
 			goto end;

-		ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
+		ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY,
+					  PAPEDELAY_B0);
 		if (ret)
 			goto end;
 	} else if (priv->rf_type == RF_VT3226D0) {
@@ -451,7 +452,8 @@ int vnt_vt3184_init(struct vnt_private *priv)
 		if (ret)
 			goto end;

-		ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
+		ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY,
+					  PAPEDELAY_B0);
 		if (ret)
 			goto end;
 	}
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index dc3ab10eb630..b88de0042b9d 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -64,8 +64,7 @@ void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
 	vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);

 	/* Set Channel[7] = 0 to tell H/W channel is changing now. */
-	vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL,
-			     (BIT(7) | BIT(5) | BIT(4)));
+	vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, CHANNEL_B7_B5_B4);

 	vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNEL,
 			connection_channel, 0, 0, NULL);
diff --git a/drivers/staging/vt6656/mac.h b/drivers/staging/vt6656/mac.h
index c532b27de37f..f61b6595defb 100644
--- a/drivers/staging/vt6656/mac.h
+++ b/drivers/staging/vt6656/mac.h
@@ -295,11 +295,20 @@
 #define BBREGCTL_REGR		BIT(1)
 #define BBREGCTL_REGW		BIT(0)

+/* Bits in the CHANNEL register */
+#define CHANNEL_B7		BIT(7)
+#define CHANNEL_B5		BIT(5)
+#define CHANNEL_B4		BIT(4)
+#define CHANNEL_B7_B5_B4	(CHANNEL_B7 | CHANNEL_B5 | CHANNEL_B4)
+
 /* Bits in the IFREGCTL register */
 #define IFREGCTL_DONE		BIT(2)
 #define IFREGCTL_IFRF		BIT(1)
 #define IFREGCTL_REGW		BIT(0)

+/* Bits in the PAPEDELAY register */
+#define PAPEDELAY_B0		BIT(0)
+
 /* Bits in the SOFTPWRCTL register */
 #define SOFTPWRCTL_RFLEOPT	BIT(3)
 #define SOFTPWRCTL_TXPEINV	BIT(1)
@@ -311,6 +320,9 @@
 #define SOFTPWRCTL_SWPE1	BIT(1)
 #define SOFTPWRCTL_SWPE3	BIT(0)

+/* Bits in the GPIOCTL0 register */
+#define GPIOCTL0_B0		BIT(0)
+
 /* Bits in the GPIOCTL1 register */
 #define GPIO3_MD		BIT(5)
 #define GPIO3_DATA		BIT(6)
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 8e7269c87ea9..aa9c1fccc134 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -366,7 +366,7 @@ static int vnt_init_registers(struct vnt_private *priv)
 	if (ret)
 		goto end;

-	ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, BIT(0));
+	ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, GPIOCTL0_B0);
 	if (ret)
 		goto end;

--
2.20.1