[PATCH lora-next v2 6/8] net: lora: sx1301: replace version and size magic numbers with defines

[Ben Whitten]

We replace the hard coded numbers for size and version with meaningful
names.

Signed-off-by: Ben Whitten <ben.whit...@lairdtech.com>
---
 drivers/net/lora/sx1301.c | 21 +++++++++++++--------
 drivers/net/lora/sx1301.h | 18 ++++++++++++++++++
 2 files changed, 31 insertions(+), 8 deletions(-)
 create mode 100644 drivers/net/lora/sx1301.h

diff --git a/drivers/net/lora/sx1301.c b/drivers/net/lora/sx1301.c
index 916ee40..8e81179 100644
--- a/drivers/net/lora/sx1301.c
+++ b/drivers/net/lora/sx1301.c
@@ -21,6 +21,8 @@
 #include <linux/lora/dev.h>
 #include <linux/spi/spi.h>
 
+#include "sx1301.h"
+
 #define REG_PAGE_RESET                 0
 #define REG_VERSION                    1
 #define REG_MCU_PROM_ADDR              9
@@ -293,7 +295,7 @@ static int sx1301_load_firmware(struct sx1301_priv *priv, 
int mcu, const struct
        u8 val, rst, select_mux;
        int ret;
 
-       if (fw->size != 8192) {
+       if (fw->size != SX1301_MCU_FW_BYTE) {
                dev_err(priv->dev, "Unexpected firmware size\n");
                return -EINVAL;
        }
@@ -445,8 +447,9 @@ static int sx1301_agc_calibrate(struct sx1301_priv *priv)
 
        dev_info(priv->dev, "AGC calibration firmware version %u\n", 
(unsigned)val);
 
-       if (val != 2) {
-               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n", 2);
+       if (val != SX1301_MCU_AGC_CAL_FW_VERSION) {
+               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n",
+                               SX1301_MCU_AGC_CAL_FW_VERSION);
                return -ENXIO;
        }
 
@@ -572,8 +575,9 @@ static int sx1301_load_all_firmware(struct sx1301_priv 
*priv)
 
        dev_info(priv->dev, "AGC firmware version %u\n", (unsigned)val);
 
-       if (val != 4) {
-               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n", 4);
+       if (val != SX1301_MCU_AGC_FW_VERSION) {
+               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n",
+                               SX1301_MCU_AGC_FW_VERSION);
                return -ENXIO;
        }
 
@@ -585,8 +589,9 @@ static int sx1301_load_all_firmware(struct sx1301_priv 
*priv)
 
        dev_info(priv->dev, "ARB firmware version %u\n", (unsigned)val);
 
-       if (val != 1) {
-               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n", 1);
+       if (val != SX1301_MCU_ARB_FW_VERSION) {
+               dev_err(priv->dev, "unexpected firmware version, expecting 
%u\n",
+                               SX1301_MCU_ARB_FW_VERSION);
                return -ENXIO;
        }
 
@@ -642,7 +647,7 @@ static int sx1301_probe(struct spi_device *spi)
                return ret;
        }
 
-       if (val != 103) {
+       if (val != SX1301_CHIP_VERSION) {
                dev_err(&spi->dev, "unexpected version: %u\n", val);
                return -ENXIO;
        }
diff --git a/drivers/net/lora/sx1301.h b/drivers/net/lora/sx1301.h
new file mode 100644
index 0000000..b37ac56
--- /dev/null
+++ b/drivers/net/lora/sx1301.h
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Semtech SX1301 lora concentrator
+ *
+ * Copyright (c) 2018   Ben Whitten
+ */
+
+#ifndef _SX1301_
+#define _SX1301_
+
+#define SX1301_CHIP_VERSION 103
+
+#define SX1301_MCU_FW_BYTE 8192
+#define SX1301_MCU_ARB_FW_VERSION 1
+#define SX1301_MCU_AGC_FW_VERSION 4
+#define SX1301_MCU_AGC_CAL_FW_VERSION 2
+
+#endif
-- 
2.7.4