From 8cc898c12290973c36e76b89892f10bd35998384 Mon Sep 17 00:00:00 2001 From: juhosg Date: Sat, 12 May 2012 10:49:30 +0000 Subject: sibyte: remove 2.6.37 support git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31682 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/sibyte/patches/103-m41t80_smbus.patch | 367 --------------------- 1 file changed, 367 deletions(-) delete mode 100644 target/linux/sibyte/patches/103-m41t80_smbus.patch (limited to 'target/linux/sibyte/patches/103-m41t80_smbus.patch') diff --git a/target/linux/sibyte/patches/103-m41t80_smbus.patch b/target/linux/sibyte/patches/103-m41t80_smbus.patch deleted file mode 100644 index 84c0eba35..000000000 --- a/target/linux/sibyte/patches/103-m41t80_smbus.patch +++ /dev/null @@ -1,367 +0,0 @@ ---- a/drivers/rtc/rtc-m41t80.c -+++ b/drivers/rtc/rtc-m41t80.c -@@ -6,6 +6,7 @@ - * Based on m41t00.c by Mark A. Greer - * - * 2006 (c) mycable GmbH -+ * Copyright (c) 2008 Maciej W. Rozycki - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as -@@ -38,6 +39,8 @@ - #define M41T80_REG_DAY 5 - #define M41T80_REG_MON 6 - #define M41T80_REG_YEAR 7 -+#define M41T80_REG_CONTROL 8 -+#define M41T80_REG_WATCHDOG 9 - #define M41T80_REG_ALARM_MON 0xa - #define M41T80_REG_ALARM_DAY 0xb - #define M41T80_REG_ALARM_HOUR 0xc -@@ -66,7 +69,7 @@ - #define M41T80_FEATURE_WD (1 << 3) /* Extra watchdog resolution */ - #define M41T80_FEATURE_SQ_ALT (1 << 4) /* RSx bits are in reg 4 */ - --#define DRV_VERSION "0.05" -+#define DRV_VERSION "0.06" - - static DEFINE_MUTEX(m41t80_rtc_mutex); - static const struct i2c_device_id m41t80_id[] = { -@@ -89,31 +92,88 @@ struct m41t80_data { - struct rtc_device *rtc; - }; - --static int m41t80_get_datetime(struct i2c_client *client, -- struct rtc_time *tm) -+ -+static int m41t80_write_block_data(struct i2c_client *client, -+ u8 reg, u8 num, u8 *buf) - { -- u8 buf[M41T80_DATETIME_REG_SIZE], dt_addr[1] = { M41T80_REG_SEC }; -- struct i2c_msg msgs[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1, -- .buf = dt_addr, -- }, -- { -- .addr = client->addr, -- .flags = I2C_M_RD, -- .len = M41T80_DATETIME_REG_SIZE - M41T80_REG_SEC, -- .buf = buf + M41T80_REG_SEC, -- }, -- }; -+ int i, rc; - -- if (i2c_transfer(client->adapter, msgs, 2) < 0) { -- dev_err(&client->dev, "read error\n"); -- return -EIO; -+ if (i2c_check_functionality(client->adapter, -+ I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) { -+ i = i2c_smbus_write_i2c_block_data(client, reg, num, buf); -+ } else { -+ for (i = 0; i < num; i++) { -+ rc = i2c_smbus_write_byte_data(client, reg + i, -+ buf[i]); -+ if (rc < 0) { -+ i = rc; -+ goto out; -+ } -+ } - } -+out: -+ return i; -+} -+ -+static int m41t80_read_block_data(struct i2c_client *client, -+ u8 reg, u8 num, u8 *buf) -+{ -+ int i, rc; -+ -+ if (i2c_check_functionality(client->adapter, -+ I2C_FUNC_SMBUS_READ_I2C_BLOCK)) { -+ i = i2c_smbus_read_i2c_block_data(client, reg, num, buf); -+ } else { -+ for (i = 0; i < num; i++) { -+ rc = i2c_smbus_read_byte_data(client, reg + i); -+ if (rc < 0) { -+ i = rc; -+ goto out; -+ } -+ buf[i] = rc; -+ } -+ } -+out: -+ return i; -+} -+ -+static int m41t80_get_datetime(struct i2c_client *client, struct rtc_time *tm) -+{ -+ u8 buf[M41T80_DATETIME_REG_SIZE]; -+ int loops = 2; -+ int sec0, sec1; -+ -+ /* -+ * Time registers are latched by this chip if an I2C block -+ * transfer is used, but with SMBus-style byte accesses -+ * this is not the case, so check seconds for a wraparound. -+ */ -+ do { -+ if (m41t80_read_block_data(client, M41T80_REG_SEC, -+ M41T80_DATETIME_REG_SIZE - -+ M41T80_REG_SEC, -+ buf + M41T80_REG_SEC) < 0) { -+ dev_err(&client->dev, "read error\n"); -+ return -EIO; -+ } -+ if (i2c_check_functionality(client->adapter, -+ I2C_FUNC_SMBUS_READ_I2C_BLOCK)) { -+ sec1 = buf[M41T80_REG_SEC]; -+ break; -+ } -+ -+ sec0 = buf[M41T80_REG_SEC]; -+ sec1 = i2c_smbus_read_byte_data(client, M41T80_REG_SEC); -+ if (sec1 < 0) { -+ dev_err(&client->dev, "read error\n"); -+ return -EIO; -+ } -+ -+ sec0 = bcd2bin(sec0 & 0x7f); -+ sec1 = bcd2bin(sec1 & 0x7f); -+ } while (sec1 < sec0 && --loops); - -- tm->tm_sec = bcd2bin(buf[M41T80_REG_SEC] & 0x7f); -+ tm->tm_sec = sec1; - tm->tm_min = bcd2bin(buf[M41T80_REG_MIN] & 0x7f); - tm->tm_hour = bcd2bin(buf[M41T80_REG_HOUR] & 0x3f); - tm->tm_mday = bcd2bin(buf[M41T80_REG_DAY] & 0x3f); -@@ -128,39 +188,16 @@ static int m41t80_get_datetime(struct i2 - /* Sets the given date and time to the real time clock. */ - static int m41t80_set_datetime(struct i2c_client *client, struct rtc_time *tm) - { -- u8 wbuf[1 + M41T80_DATETIME_REG_SIZE]; -- u8 *buf = &wbuf[1]; -- u8 dt_addr[1] = { M41T80_REG_SEC }; -- struct i2c_msg msgs_in[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1, -- .buf = dt_addr, -- }, -- { -- .addr = client->addr, -- .flags = I2C_M_RD, -- .len = M41T80_DATETIME_REG_SIZE - M41T80_REG_SEC, -- .buf = buf + M41T80_REG_SEC, -- }, -- }; -- struct i2c_msg msgs[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1 + M41T80_DATETIME_REG_SIZE, -- .buf = wbuf, -- }, -- }; -+ u8 buf[M41T80_DATETIME_REG_SIZE]; - - /* Read current reg values into buf[1..7] */ -- if (i2c_transfer(client->adapter, msgs_in, 2) < 0) { -+ if (m41t80_read_block_data(client, M41T80_REG_SEC, -+ M41T80_DATETIME_REG_SIZE - M41T80_REG_SEC, -+ buf + M41T80_REG_SEC) < 0) { - dev_err(&client->dev, "read error\n"); - return -EIO; - } - -- wbuf[0] = 0; /* offset into rtc's regs */ - /* Merge time-data and register flags into buf[0..7] */ - buf[M41T80_REG_SSEC] = 0; - buf[M41T80_REG_SEC] = -@@ -178,7 +215,8 @@ static int m41t80_set_datetime(struct i2 - /* assume 20YY not 19YY */ - buf[M41T80_REG_YEAR] = bin2bcd(tm->tm_year % 100); - -- if (i2c_transfer(client->adapter, msgs, 1) != 1) { -+ if (m41t80_write_block_data(client, M41T80_REG_SSEC, -+ M41T80_DATETIME_REG_SIZE, buf) < 0) { - dev_err(&client->dev, "write error\n"); - return -EIO; - } -@@ -252,34 +290,11 @@ err: - static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t) - { - struct i2c_client *client = to_i2c_client(dev); -- u8 wbuf[1 + M41T80_ALARM_REG_SIZE]; -- u8 *buf = &wbuf[1]; -+ u8 buf[M41T80_ALARM_REG_SIZE]; - u8 *reg = buf - M41T80_REG_ALARM_MON; -- u8 dt_addr[1] = { M41T80_REG_ALARM_MON }; -- struct i2c_msg msgs_in[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1, -- .buf = dt_addr, -- }, -- { -- .addr = client->addr, -- .flags = I2C_M_RD, -- .len = M41T80_ALARM_REG_SIZE, -- .buf = buf, -- }, -- }; -- struct i2c_msg msgs[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1 + M41T80_ALARM_REG_SIZE, -- .buf = wbuf, -- }, -- }; - -- if (i2c_transfer(client->adapter, msgs_in, 2) < 0) { -+ if (m41t80_read_block_data(client, M41T80_REG_ALARM_MON, -+ M41T80_ALARM_REG_SIZE, buf) < 0) { - dev_err(&client->dev, "read error\n"); - return -EIO; - } -@@ -289,7 +304,6 @@ static int m41t80_rtc_set_alarm(struct d - reg[M41T80_REG_ALARM_MIN] = 0; - reg[M41T80_REG_ALARM_SEC] = 0; - -- wbuf[0] = M41T80_REG_ALARM_MON; /* offset into rtc's regs */ - reg[M41T80_REG_ALARM_SEC] |= t->time.tm_sec >= 0 ? - bin2bcd(t->time.tm_sec) : 0x80; - reg[M41T80_REG_ALARM_MIN] |= t->time.tm_min >= 0 ? -@@ -303,7 +317,8 @@ static int m41t80_rtc_set_alarm(struct d - else - reg[M41T80_REG_ALARM_DAY] |= 0x40; - -- if (i2c_transfer(client->adapter, msgs, 1) != 1) { -+ if (m41t80_write_block_data(client, M41T80_REG_ALARM_MON, -+ M41T80_ALARM_REG_SIZE, buf) < 0) { - dev_err(&client->dev, "write error\n"); - return -EIO; - } -@@ -323,24 +338,10 @@ static int m41t80_rtc_read_alarm(struct - { - struct i2c_client *client = to_i2c_client(dev); - u8 buf[M41T80_ALARM_REG_SIZE + 1]; /* all alarm regs and flags */ -- u8 dt_addr[1] = { M41T80_REG_ALARM_MON }; - u8 *reg = buf - M41T80_REG_ALARM_MON; -- struct i2c_msg msgs[] = { -- { -- .addr = client->addr, -- .flags = 0, -- .len = 1, -- .buf = dt_addr, -- }, -- { -- .addr = client->addr, -- .flags = I2C_M_RD, -- .len = M41T80_ALARM_REG_SIZE + 1, -- .buf = buf, -- }, -- }; - -- if (i2c_transfer(client->adapter, msgs, 2) < 0) { -+ if (m41t80_read_block_data(client, M41T80_REG_ALARM_MON, -+ M41T80_ALARM_REG_SIZE + 1, buf) < 0) { - dev_err(&client->dev, "read error\n"); - return -EIO; - } -@@ -513,26 +514,16 @@ static int boot_flag; - */ - static void wdt_ping(void) - { -- unsigned char i2c_data[2]; -- struct i2c_msg msgs1[1] = { -- { -- .addr = save_client->addr, -- .flags = 0, -- .len = 2, -- .buf = i2c_data, -- }, -- }; -- struct m41t80_data *clientdata = i2c_get_clientdata(save_client); -+ u8 wdt = 0x80; /* WDS = 1 (0x80) */ - -- i2c_data[0] = 0x09; /* watchdog register */ -+ struct m41t80_data *clientdata = i2c_get_clientdata(save_client); - - if (wdt_margin > 31) -- i2c_data[1] = (wdt_margin & 0xFC) | 0x83; /* resolution = 4s */ -+ /* mulitplier = WD_TIMO / 4, resolution = 4s (0x3) */ -+ wdt |= (wdt_margin & 0xfc) | 0x3; - else -- /* -- * WDS = 1 (0x80), mulitplier = WD_TIMO, resolution = 1s (0x02) -- */ -- i2c_data[1] = wdt_margin<<2 | 0x82; -+ /* mulitplier = WD_TIMO, resolution = 1s (0x2) */ -+ wdt |= wdt_margin << 2 | 0x2; - - /* - * M41T65 has three bits for watchdog resolution. Don't set bit 7, as -@@ -541,7 +532,7 @@ static void wdt_ping(void) - if (clientdata->features & M41T80_FEATURE_WD) - i2c_data[1] &= ~M41T80_WATCHDOG_RB2; - -- i2c_transfer(save_client->adapter, msgs1, 1); -+ i2c_smbus_write_byte_data(save_client, M41T80_REG_WATCHDOG, wdt); - } - - /** -@@ -551,36 +542,8 @@ static void wdt_ping(void) - */ - static void wdt_disable(void) - { -- unsigned char i2c_data[2], i2c_buf[0x10]; -- struct i2c_msg msgs0[2] = { -- { -- .addr = save_client->addr, -- .flags = 0, -- .len = 1, -- .buf = i2c_data, -- }, -- { -- .addr = save_client->addr, -- .flags = I2C_M_RD, -- .len = 1, -- .buf = i2c_buf, -- }, -- }; -- struct i2c_msg msgs1[1] = { -- { -- .addr = save_client->addr, -- .flags = 0, -- .len = 2, -- .buf = i2c_data, -- }, -- }; -- -- i2c_data[0] = 0x09; -- i2c_transfer(save_client->adapter, msgs0, 2); -- -- i2c_data[0] = 0x09; -- i2c_data[1] = 0x00; -- i2c_transfer(save_client->adapter, msgs1, 1); -+ i2c_smbus_read_byte_data(save_client, M41T80_REG_WATCHDOG); -+ i2c_smbus_write_byte_data(save_client, M41T80_REG_WATCHDOG, 0); - } - - /** -@@ -782,8 +745,8 @@ static int m41t80_probe(struct i2c_clien - struct rtc_time tm; - struct m41t80_data *clientdata = NULL; - -- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C -- | I2C_FUNC_SMBUS_BYTE_DATA)) { -+ if (!i2c_check_functionality(client->adapter, -+ I2C_FUNC_SMBUS_BYTE_DATA)) { - rc = -ENODEV; - goto exit; - } -- cgit v1.2.3