Add GPL-2.0+ SPDX-License-Identifier to source files

[karo-tx-uboot.git] / drivers / rtc / ds1307.c

diff --git a/drivers/rtc/ds1307.c b/drivers/rtc/ds1307.c
index 11fc14f3f65296dfc28ccdbccb224296ea171dbf..1a2bad3c5c60142a647751de5d8792483c261414 100644 (file)
--- a/drivers/rtc/ds1307.c
+++ b/drivers/rtc/ds1307.c
@@ -4,23 +4,7 @@
  * Keith Outwater, keith_outwater@mvis.com`
  * Steven Scholz, steven.scholz@imc-berlin.de
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -47,11 +31,11 @@
 #endif
 /*---------------------------------------------------------------------*/
 
-#ifndef CFG_I2C_RTC_ADDR
-# define CFG_I2C_RTC_ADDR      0x68
+#ifndef CONFIG_SYS_I2C_RTC_ADDR
+# define CONFIG_SYS_I2C_RTC_ADDR       0x68
 #endif
 
-#if defined(CONFIG_RTC_DS1307) && (CFG_I2C_SPEED > 100000)
+#if defined(CONFIG_RTC_DS1307) && (CONFIG_SYS_I2C_SPEED > 100000)
 # error The DS1307 is specified only up to 100kHz!
 #endif
 
@@ -76,8 +60,6 @@
 
 static uchar rtc_read (uchar reg);
 static void rtc_write (uchar reg, uchar val);
-static uchar bin2bcd (unsigned int n);
-static unsigned bcd2bin (uchar c);
 
 /*
  * Get the current time from the RTC
@@ -128,7 +110,7 @@ int rtc_get (struct rtc_time *tmp)
 /*
  * Set the RTC
  */
-void rtc_set (struct rtc_time *tmp)
+int rtc_set (struct rtc_time *tmp)
 {
        DEBUGR ("Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
                tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
@@ -144,6 +126,8 @@ void rtc_set (struct rtc_time *tmp)
        rtc_write (RTC_HR_REG_ADDR, bin2bcd (tmp->tm_hour));
        rtc_write (RTC_MIN_REG_ADDR, bin2bcd (tmp->tm_min));
        rtc_write (RTC_SEC_REG_ADDR, bin2bcd (tmp->tm_sec));
+
+       return 0;
 }
 
 
@@ -185,23 +169,12 @@ void rtc_reset (void)
 static
 uchar rtc_read (uchar reg)
 {
-       return (i2c_reg_read (CFG_I2C_RTC_ADDR, reg));
+       return (i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, reg));
 }
 
 
 static void rtc_write (uchar reg, uchar val)
 {
-       i2c_reg_write (CFG_I2C_RTC_ADDR, reg, val);
+       i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val);
 }
-
-static unsigned bcd2bin (uchar n)
-{
-       return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F));
-}
-
-static unsigned char bin2bcd (unsigned int n)
-{
-       return (((n / 10) << 4) | (n % 10));
-}
-
 #endif