mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 01:11:14 +00:00
ea7aac7983
SVN-Revision: 10891
655 lines
18 KiB
Diff
655 lines
18 KiB
Diff
---
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drivers/rtc/rtc-isl1208.c | 357 +++++++++++++++++++++-------------------------
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1 file changed, 170 insertions(+), 187 deletions(-)
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Index: linux-2.6.25-rc6-armeb/drivers/rtc/rtc-isl1208.c
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===================================================================
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--- linux-2.6.25-rc6-armeb.orig/drivers/rtc/rtc-isl1208.c 2008-03-20 10:26:41.000000000 +1030
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+++ linux-2.6.25-rc6-armeb/drivers/rtc/rtc-isl1208.c 2008-03-20 10:26:53.000000000 +1030
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@@ -15,16 +15,15 @@
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#include <linux/bcd.h>
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#include <linux/rtc.h>
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-#define DRV_NAME "isl1208"
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-#define DRV_VERSION "0.2"
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+#define DRV_VERSION "0.3"
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/* Register map */
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/* rtc section */
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#define ISL1208_REG_SC 0x00
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#define ISL1208_REG_MN 0x01
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#define ISL1208_REG_HR 0x02
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-#define ISL1208_REG_HR_MIL (1<<7) /* 24h/12h mode */
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-#define ISL1208_REG_HR_PM (1<<5) /* PM/AM bit in 12h mode */
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+#define ISL1208_REG_HR_MIL (1<<7) /* 24h/12h mode */
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+#define ISL1208_REG_HR_PM (1<<5) /* PM/AM bit in 12h mode */
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#define ISL1208_REG_DT 0x03
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#define ISL1208_REG_MO 0x04
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#define ISL1208_REG_YR 0x05
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@@ -33,14 +32,14 @@
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/* control/status section */
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#define ISL1208_REG_SR 0x07
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-#define ISL1208_REG_SR_ARST (1<<7) /* auto reset */
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-#define ISL1208_REG_SR_XTOSCB (1<<6) /* crystal oscillator */
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-#define ISL1208_REG_SR_WRTC (1<<4) /* write rtc */
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-#define ISL1208_REG_SR_ALM (1<<2) /* alarm */
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-#define ISL1208_REG_SR_BAT (1<<1) /* battery */
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-#define ISL1208_REG_SR_RTCF (1<<0) /* rtc fail */
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+#define ISL1208_REG_SR_ARST (1<<7) /* auto reset */
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+#define ISL1208_REG_SR_XTOSCB (1<<6) /* crystal oscillator */
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+#define ISL1208_REG_SR_WRTC (1<<4) /* write rtc */
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+#define ISL1208_REG_SR_ALM (1<<2) /* alarm */
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+#define ISL1208_REG_SR_BAT (1<<1) /* battery */
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+#define ISL1208_REG_SR_RTCF (1<<0) /* rtc fail */
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#define ISL1208_REG_INT 0x08
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-#define ISL1208_REG_09 0x09 /* reserved */
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+#define ISL1208_REG_09 0x09 /* reserved */
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#define ISL1208_REG_ATR 0x0a
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#define ISL1208_REG_DTR 0x0b
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@@ -58,39 +57,21 @@
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#define ISL1208_REG_USR2 0x13
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#define ISL1208_USR_SECTION_LEN 2
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-/* i2c configuration */
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-#define ISL1208_I2C_ADDR 0xde
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-
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-static const unsigned short normal_i2c[] = {
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- ISL1208_I2C_ADDR>>1, I2C_CLIENT_END
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-};
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-I2C_CLIENT_INSMOD; /* defines addr_data */
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-
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-static int isl1208_attach_adapter(struct i2c_adapter *adapter);
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-static int isl1208_detach_client(struct i2c_client *client);
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-
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-static struct i2c_driver isl1208_driver = {
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- .driver = {
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- .name = DRV_NAME,
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- },
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- .id = I2C_DRIVERID_ISL1208,
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- .attach_adapter = &isl1208_attach_adapter,
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- .detach_client = &isl1208_detach_client,
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-};
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+static struct i2c_driver isl1208_driver;
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/* block read */
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static int
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isl1208_i2c_read_regs(struct i2c_client *client, u8 reg, u8 buf[],
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- unsigned len)
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+ unsigned len)
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{
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u8 reg_addr[1] = { reg };
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struct i2c_msg msgs[2] = {
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- { client->addr, client->flags, sizeof(reg_addr), reg_addr },
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- { client->addr, client->flags | I2C_M_RD, len, buf }
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+ {client->addr, client->flags, sizeof(reg_addr), reg_addr}
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+ ,
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+ {client->addr, client->flags | I2C_M_RD, len, buf}
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};
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int ret;
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- BUG_ON(len == 0);
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BUG_ON(reg > ISL1208_REG_USR2);
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BUG_ON(reg + len > ISL1208_REG_USR2 + 1);
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@@ -103,15 +84,14 @@
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/* block write */
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static int
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isl1208_i2c_set_regs(struct i2c_client *client, u8 reg, u8 const buf[],
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- unsigned len)
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+ unsigned len)
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{
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u8 i2c_buf[ISL1208_REG_USR2 + 2];
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struct i2c_msg msgs[1] = {
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- { client->addr, client->flags, len + 1, i2c_buf }
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+ {client->addr, client->flags, len + 1, i2c_buf}
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};
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int ret;
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- BUG_ON(len == 0);
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BUG_ON(reg > ISL1208_REG_USR2);
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BUG_ON(reg + len > ISL1208_REG_USR2 + 1);
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@@ -125,7 +105,8 @@
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}
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/* simple check to see wether we have a isl1208 */
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-static int isl1208_i2c_validate_client(struct i2c_client *client)
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+static int
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+isl1208_i2c_validate_client(struct i2c_client *client)
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{
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u8 regs[ISL1208_RTC_SECTION_LEN] = { 0, };
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u8 zero_mask[ISL1208_RTC_SECTION_LEN] = {
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@@ -139,24 +120,29 @@
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return ret;
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for (i = 0; i < ISL1208_RTC_SECTION_LEN; ++i) {
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- if (regs[i] & zero_mask[i]) /* check if bits are cleared */
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+ if (regs[i] & zero_mask[i]) /* check if bits are cleared */
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return -ENODEV;
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}
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return 0;
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}
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-static int isl1208_i2c_get_sr(struct i2c_client *client)
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+static int
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+isl1208_i2c_get_sr(struct i2c_client *client)
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{
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- return i2c_smbus_read_byte_data(client, ISL1208_REG_SR) == -1 ? -EIO:0;
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+ int sr = i2c_smbus_read_byte_data(client, ISL1208_REG_SR);
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+ if (sr < 0)
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+ return -EIO;
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+
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+ return sr;
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}
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-static int isl1208_i2c_get_atr(struct i2c_client *client)
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+static int
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+isl1208_i2c_get_atr(struct i2c_client *client)
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{
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int atr = i2c_smbus_read_byte_data(client, ISL1208_REG_ATR);
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-
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if (atr < 0)
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- return -EIO;
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+ return atr;
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/* The 6bit value in the ATR register controls the load
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* capacitance C_load * in steps of 0.25pF
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@@ -169,51 +155,54 @@
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*
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*/
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- atr &= 0x3f; /* mask out lsb */
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- atr ^= 1<<5; /* invert 6th bit */
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- atr += 2*9; /* add offset of 4.5pF; unit[atr] = 0.25pF */
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+ atr &= 0x3f; /* mask out lsb */
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+ atr ^= 1 << 5; /* invert 6th bit */
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+ atr += 2 * 9; /* add offset of 4.5pF; unit[atr] = 0.25pF */
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return atr;
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}
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-static int isl1208_i2c_get_dtr(struct i2c_client *client)
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+static int
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+isl1208_i2c_get_dtr(struct i2c_client *client)
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{
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int dtr = i2c_smbus_read_byte_data(client, ISL1208_REG_DTR);
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-
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if (dtr < 0)
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return -EIO;
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/* dtr encodes adjustments of {-60,-40,-20,0,20,40,60} ppm */
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- dtr = ((dtr & 0x3) * 20) * (dtr & (1<<2) ? -1 : 1);
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+ dtr = ((dtr & 0x3) * 20) * (dtr & (1 << 2) ? -1 : 1);
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return dtr;
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}
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-static int isl1208_i2c_get_usr(struct i2c_client *client)
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+static int
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+isl1208_i2c_get_usr(struct i2c_client *client)
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{
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u8 buf[ISL1208_USR_SECTION_LEN] = { 0, };
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int ret;
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- ret = isl1208_i2c_read_regs (client, ISL1208_REG_USR1, buf,
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- ISL1208_USR_SECTION_LEN);
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+ ret = isl1208_i2c_read_regs(client, ISL1208_REG_USR1, buf,
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+ ISL1208_USR_SECTION_LEN);
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if (ret < 0)
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return ret;
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return (buf[1] << 8) | buf[0];
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}
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-static int isl1208_i2c_set_usr(struct i2c_client *client, u16 usr)
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+static int
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+isl1208_i2c_set_usr(struct i2c_client *client, u16 usr)
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{
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u8 buf[ISL1208_USR_SECTION_LEN];
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buf[0] = usr & 0xff;
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buf[1] = (usr >> 8) & 0xff;
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- return isl1208_i2c_set_regs (client, ISL1208_REG_USR1, buf,
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- ISL1208_USR_SECTION_LEN);
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+ return isl1208_i2c_set_regs(client, ISL1208_REG_USR1, buf,
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+ ISL1208_USR_SECTION_LEN);
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}
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-static int isl1208_rtc_proc(struct device *dev, struct seq_file *seq)
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+static int
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+isl1208_rtc_proc(struct device *dev, struct seq_file *seq)
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{
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struct i2c_client *const client = to_i2c_client(dev);
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int sr, dtr, atr, usr;
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@@ -230,20 +219,19 @@
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(sr & ISL1208_REG_SR_ALM) ? " ALM" : "",
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(sr & ISL1208_REG_SR_WRTC) ? " WRTC" : "",
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(sr & ISL1208_REG_SR_XTOSCB) ? " XTOSCB" : "",
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- (sr & ISL1208_REG_SR_ARST) ? " ARST" : "",
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- sr);
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+ (sr & ISL1208_REG_SR_ARST) ? " ARST" : "", sr);
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seq_printf(seq, "batt_status\t: %s\n",
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(sr & ISL1208_REG_SR_RTCF) ? "bad" : "okay");
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dtr = isl1208_i2c_get_dtr(client);
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- if (dtr >= 0 -1)
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+ if (dtr >= 0 - 1)
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seq_printf(seq, "digital_trim\t: %d ppm\n", dtr);
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atr = isl1208_i2c_get_atr(client);
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if (atr >= 0)
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seq_printf(seq, "analog_trim\t: %d.%.2d pF\n",
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- atr>>2, (atr&0x3)*25);
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+ atr >> 2, (atr & 0x3) * 25);
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usr = isl1208_i2c_get_usr(client);
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if (usr >= 0)
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@@ -252,9 +240,8 @@
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return 0;
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}
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-
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-static int isl1208_i2c_read_time(struct i2c_client *client,
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- struct rtc_time *tm)
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+static int
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+isl1208_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
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{
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int sr;
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u8 regs[ISL1208_RTC_SECTION_LEN] = { 0, };
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@@ -274,27 +261,30 @@
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tm->tm_sec = BCD2BIN(regs[ISL1208_REG_SC]);
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tm->tm_min = BCD2BIN(regs[ISL1208_REG_MN]);
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- { /* HR field has a more complex interpretation */
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+
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+ /* HR field has a more complex interpretation */
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+ {
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const u8 _hr = regs[ISL1208_REG_HR];
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- if (_hr & ISL1208_REG_HR_MIL) /* 24h format */
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+ if (_hr & ISL1208_REG_HR_MIL) /* 24h format */
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tm->tm_hour = BCD2BIN(_hr & 0x3f);
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- else { // 12h format
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+ else {
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+ /* 12h format */
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tm->tm_hour = BCD2BIN(_hr & 0x1f);
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- if (_hr & ISL1208_REG_HR_PM) /* PM flag set */
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+ if (_hr & ISL1208_REG_HR_PM) /* PM flag set */
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tm->tm_hour += 12;
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}
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}
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tm->tm_mday = BCD2BIN(regs[ISL1208_REG_DT]);
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- tm->tm_mon = BCD2BIN(regs[ISL1208_REG_MO]) - 1; /* rtc starts at 1 */
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+ tm->tm_mon = BCD2BIN(regs[ISL1208_REG_MO]) - 1; /* rtc starts at 1 */
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tm->tm_year = BCD2BIN(regs[ISL1208_REG_YR]) + 100;
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tm->tm_wday = BCD2BIN(regs[ISL1208_REG_DW]);
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return 0;
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}
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-static int isl1208_i2c_read_alarm(struct i2c_client *client,
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- struct rtc_wkalrm *alarm)
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+static int
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+isl1208_i2c_read_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm)
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{
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struct rtc_time *const tm = &alarm->time;
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u8 regs[ISL1208_ALARM_SECTION_LEN] = { 0, };
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@@ -307,7 +297,7 @@
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}
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sr = isl1208_i2c_read_regs(client, ISL1208_REG_SCA, regs,
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- ISL1208_ALARM_SECTION_LEN);
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+ ISL1208_ALARM_SECTION_LEN);
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if (sr < 0) {
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dev_err(&client->dev, "%s: reading alarm section failed\n",
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__func__);
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@@ -315,23 +305,25 @@
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}
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/* MSB of each alarm register is an enable bit */
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- tm->tm_sec = BCD2BIN(regs[ISL1208_REG_SCA-ISL1208_REG_SCA] & 0x7f);
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- tm->tm_min = BCD2BIN(regs[ISL1208_REG_MNA-ISL1208_REG_SCA] & 0x7f);
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- tm->tm_hour = BCD2BIN(regs[ISL1208_REG_HRA-ISL1208_REG_SCA] & 0x3f);
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- tm->tm_mday = BCD2BIN(regs[ISL1208_REG_DTA-ISL1208_REG_SCA] & 0x3f);
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- tm->tm_mon = BCD2BIN(regs[ISL1208_REG_MOA-ISL1208_REG_SCA] & 0x1f)-1;
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- tm->tm_wday = BCD2BIN(regs[ISL1208_REG_DWA-ISL1208_REG_SCA] & 0x03);
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+ tm->tm_sec = BCD2BIN(regs[ISL1208_REG_SCA - ISL1208_REG_SCA] & 0x7f);
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+ tm->tm_min = BCD2BIN(regs[ISL1208_REG_MNA - ISL1208_REG_SCA] & 0x7f);
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+ tm->tm_hour = BCD2BIN(regs[ISL1208_REG_HRA - ISL1208_REG_SCA] & 0x3f);
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+ tm->tm_mday = BCD2BIN(regs[ISL1208_REG_DTA - ISL1208_REG_SCA] & 0x3f);
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+ tm->tm_mon =
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+ BCD2BIN(regs[ISL1208_REG_MOA - ISL1208_REG_SCA] & 0x1f) - 1;
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+ tm->tm_wday = BCD2BIN(regs[ISL1208_REG_DWA - ISL1208_REG_SCA] & 0x03);
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return 0;
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}
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-static int isl1208_rtc_read_time(struct device *dev, struct rtc_time *tm)
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+static int
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+isl1208_rtc_read_time(struct device *dev, struct rtc_time *tm)
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{
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return isl1208_i2c_read_time(to_i2c_client(dev), tm);
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}
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-static int isl1208_i2c_set_time(struct i2c_client *client,
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- struct rtc_time const *tm)
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+static int
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+isl1208_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
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{
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int sr;
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u8 regs[ISL1208_RTC_SECTION_LEN] = { 0, };
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@@ -353,7 +345,7 @@
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}
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/* set WRTC */
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- sr = i2c_smbus_write_byte_data (client, ISL1208_REG_SR,
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+ sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR,
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sr | ISL1208_REG_SR_WRTC);
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if (sr < 0) {
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dev_err(&client->dev, "%s: writing SR failed\n", __func__);
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@@ -369,7 +361,7 @@
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}
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/* clear WRTC again */
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- sr = i2c_smbus_write_byte_data (client, ISL1208_REG_SR,
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+ sr = i2c_smbus_write_byte_data(client, ISL1208_REG_SR,
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sr & ~ISL1208_REG_SR_WRTC);
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if (sr < 0) {
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dev_err(&client->dev, "%s: writing SR failed\n", __func__);
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@@ -380,70 +372,69 @@
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}
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-static int isl1208_rtc_set_time(struct device *dev, struct rtc_time *tm)
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+static int
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+isl1208_rtc_set_time(struct device *dev, struct rtc_time *tm)
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{
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return isl1208_i2c_set_time(to_i2c_client(dev), tm);
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}
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-static int isl1208_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
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+static int
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+isl1208_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
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{
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return isl1208_i2c_read_alarm(to_i2c_client(dev), alarm);
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}
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static const struct rtc_class_ops isl1208_rtc_ops = {
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- .proc = isl1208_rtc_proc,
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- .read_time = isl1208_rtc_read_time,
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- .set_time = isl1208_rtc_set_time,
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- .read_alarm = isl1208_rtc_read_alarm,
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- //.set_alarm = isl1208_rtc_set_alarm,
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+ .proc = isl1208_rtc_proc,
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+ .read_time = isl1208_rtc_read_time,
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+ .set_time = isl1208_rtc_set_time,
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+ .read_alarm = isl1208_rtc_read_alarm,
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+ /*.set_alarm = isl1208_rtc_set_alarm, */
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|
};
|
|
|
|
/* sysfs interface */
|
|
|
|
-static ssize_t isl1208_sysfs_show_atrim(struct device *dev,
|
|
- struct device_attribute *attr,
|
|
- char *buf)
|
|
+static ssize_t
|
|
+isl1208_sysfs_show_atrim(struct device *dev,
|
|
+ struct device_attribute *attr, char *buf)
|
|
{
|
|
- int atr;
|
|
-
|
|
- atr = isl1208_i2c_get_atr(to_i2c_client(dev));
|
|
+ int atr = isl1208_i2c_get_atr(to_i2c_client(dev));
|
|
if (atr < 0)
|
|
return atr;
|
|
|
|
- return sprintf(buf, "%d.%.2d pF\n", atr>>2, (atr&0x3)*25);
|
|
+ return sprintf(buf, "%d.%.2d pF\n", atr >> 2, (atr & 0x3) * 25);
|
|
}
|
|
+
|
|
static DEVICE_ATTR(atrim, S_IRUGO, isl1208_sysfs_show_atrim, NULL);
|
|
|
|
-static ssize_t isl1208_sysfs_show_dtrim(struct device *dev,
|
|
- struct device_attribute *attr,
|
|
- char *buf)
|
|
+static ssize_t
|
|
+isl1208_sysfs_show_dtrim(struct device *dev,
|
|
+ struct device_attribute *attr, char *buf)
|
|
{
|
|
- int dtr;
|
|
-
|
|
- dtr = isl1208_i2c_get_dtr(to_i2c_client(dev));
|
|
+ int dtr = isl1208_i2c_get_dtr(to_i2c_client(dev));
|
|
if (dtr < 0)
|
|
return dtr;
|
|
|
|
return sprintf(buf, "%d ppm\n", dtr);
|
|
}
|
|
+
|
|
static DEVICE_ATTR(dtrim, S_IRUGO, isl1208_sysfs_show_dtrim, NULL);
|
|
|
|
-static ssize_t isl1208_sysfs_show_usr(struct device *dev,
|
|
- struct device_attribute *attr,
|
|
- char *buf)
|
|
+static ssize_t
|
|
+isl1208_sysfs_show_usr(struct device *dev,
|
|
+ struct device_attribute *attr, char *buf)
|
|
{
|
|
- int usr;
|
|
-
|
|
- usr = isl1208_i2c_get_usr(to_i2c_client(dev));
|
|
+ int usr = isl1208_i2c_get_usr(to_i2c_client(dev));
|
|
if (usr < 0)
|
|
return usr;
|
|
|
|
return sprintf(buf, "0x%.4x\n", usr);
|
|
}
|
|
|
|
-static ssize_t isl1208_sysfs_store_usr(struct device *dev,
|
|
- struct device_attribute *attr,
|
|
- const char *buf, size_t count)
|
|
+static ssize_t
|
|
+isl1208_sysfs_store_usr(struct device *dev,
|
|
+ struct device_attribute *attr,
|
|
+ const char *buf, size_t count)
|
|
{
|
|
int usr = -1;
|
|
|
|
@@ -460,124 +451,116 @@
|
|
|
|
return isl1208_i2c_set_usr(to_i2c_client(dev), usr) ? -EIO : count;
|
|
}
|
|
+
|
|
static DEVICE_ATTR(usr, S_IRUGO | S_IWUSR, isl1208_sysfs_show_usr,
|
|
isl1208_sysfs_store_usr);
|
|
|
|
static int
|
|
-isl1208_probe(struct i2c_adapter *adapter, int addr, int kind)
|
|
+isl1208_sysfs_register(struct device *dev)
|
|
{
|
|
- int rc = 0;
|
|
- struct i2c_client *new_client = NULL;
|
|
- struct rtc_device *rtc = NULL;
|
|
+ int err;
|
|
+
|
|
+ err = device_create_file(dev, &dev_attr_atrim);
|
|
+ if (err)
|
|
+ return err;
|
|
|
|
- if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
|
|
- rc = -ENODEV;
|
|
- goto failout;
|
|
+ err = device_create_file(dev, &dev_attr_dtrim);
|
|
+ if (err) {
|
|
+ device_remove_file(dev, &dev_attr_atrim);
|
|
+ return err;
|
|
}
|
|
|
|
- new_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
|
- if (new_client == NULL) {
|
|
- rc = -ENOMEM;
|
|
- goto failout;
|
|
+ err = device_create_file(dev, &dev_attr_usr);
|
|
+ if (err) {
|
|
+ device_remove_file(dev, &dev_attr_atrim);
|
|
+ device_remove_file(dev, &dev_attr_dtrim);
|
|
}
|
|
|
|
- new_client->addr = addr;
|
|
- new_client->adapter = adapter;
|
|
- new_client->driver = &isl1208_driver;
|
|
- new_client->flags = 0;
|
|
- strcpy(new_client->name, DRV_NAME);
|
|
+ return 0;
|
|
+}
|
|
|
|
- if (kind < 0) {
|
|
- rc = isl1208_i2c_validate_client(new_client);
|
|
- if (rc < 0)
|
|
- goto failout;
|
|
- }
|
|
+static int
|
|
+isl1208_sysfs_unregister(struct device *dev)
|
|
+{
|
|
+ device_remove_file(dev, &dev_attr_atrim);
|
|
+ device_remove_file(dev, &dev_attr_atrim);
|
|
+ device_remove_file(dev, &dev_attr_usr);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int
|
|
+isl1208_probe(struct i2c_client *client)
|
|
+{
|
|
+ int rc = 0;
|
|
+ struct rtc_device *rtc;
|
|
|
|
- rc = i2c_attach_client(new_client);
|
|
- if (rc < 0)
|
|
- goto failout;
|
|
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
|
|
+ return -ENODEV;
|
|
|
|
- dev_info(&new_client->dev,
|
|
+ if (isl1208_i2c_validate_client(client) < 0)
|
|
+ return -ENODEV;
|
|
+
|
|
+ dev_info(&client->dev,
|
|
"chip found, driver version " DRV_VERSION "\n");
|
|
|
|
rtc = rtc_device_register(isl1208_driver.driver.name,
|
|
- &new_client->dev,
|
|
- &isl1208_rtc_ops, THIS_MODULE);
|
|
-
|
|
- if (IS_ERR(rtc)) {
|
|
- rc = PTR_ERR(rtc);
|
|
- goto failout_detach;
|
|
- }
|
|
+ &client->dev, &isl1208_rtc_ops,
|
|
+ THIS_MODULE);
|
|
+ if (IS_ERR(rtc))
|
|
+ return PTR_ERR(rtc);
|
|
|
|
- i2c_set_clientdata(new_client, rtc);
|
|
+ i2c_set_clientdata(client, rtc);
|
|
|
|
- rc = isl1208_i2c_get_sr(new_client);
|
|
+ rc = isl1208_i2c_get_sr(client);
|
|
if (rc < 0) {
|
|
- dev_err(&new_client->dev, "reading status failed\n");
|
|
- goto failout_unregister;
|
|
+ dev_err(&client->dev, "reading status failed\n");
|
|
+ goto exit_unregister;
|
|
}
|
|
|
|
if (rc & ISL1208_REG_SR_RTCF)
|
|
- dev_warn(&new_client->dev, "rtc power failure detected, "
|
|
+ dev_warn(&client->dev, "rtc power failure detected, "
|
|
"please set clock.\n");
|
|
|
|
- rc = device_create_file(&new_client->dev, &dev_attr_atrim);
|
|
- if (rc < 0)
|
|
- goto failout_unregister;
|
|
- rc = device_create_file(&new_client->dev, &dev_attr_dtrim);
|
|
- if (rc < 0)
|
|
- goto failout_atrim;
|
|
- rc = device_create_file(&new_client->dev, &dev_attr_usr);
|
|
- if (rc < 0)
|
|
- goto failout_dtrim;
|
|
+ rc = isl1208_sysfs_register(&client->dev);
|
|
+ if (rc)
|
|
+ goto exit_unregister;
|
|
|
|
return 0;
|
|
|
|
- failout_dtrim:
|
|
- device_remove_file(&new_client->dev, &dev_attr_dtrim);
|
|
- failout_atrim:
|
|
- device_remove_file(&new_client->dev, &dev_attr_atrim);
|
|
- failout_unregister:
|
|
+ exit_unregister:
|
|
rtc_device_unregister(rtc);
|
|
- failout_detach:
|
|
- i2c_detach_client(new_client);
|
|
- failout:
|
|
- kfree(new_client);
|
|
- return rc;
|
|
-}
|
|
|
|
-static int
|
|
-isl1208_attach_adapter (struct i2c_adapter *adapter)
|
|
-{
|
|
- return i2c_probe(adapter, &addr_data, isl1208_probe);
|
|
+ return rc;
|
|
}
|
|
|
|
static int
|
|
-isl1208_detach_client(struct i2c_client *client)
|
|
+isl1208_remove(struct i2c_client *client)
|
|
{
|
|
- int rc;
|
|
- struct rtc_device *const rtc = i2c_get_clientdata(client);
|
|
-
|
|
- if (rtc)
|
|
- rtc_device_unregister(rtc); /* do we need to kfree? */
|
|
-
|
|
- rc = i2c_detach_client(client);
|
|
- if (rc)
|
|
- return rc;
|
|
+ struct rtc_device *rtc = i2c_get_clientdata(client);
|
|
|
|
- kfree(client);
|
|
+ isl1208_sysfs_unregister(&client->dev);
|
|
+ rtc_device_unregister(rtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
-/* module management */
|
|
+static struct i2c_driver isl1208_driver = {
|
|
+ .driver = {
|
|
+ .name = "rtc-isl1208",
|
|
+ },
|
|
+ .probe = isl1208_probe,
|
|
+ .remove = isl1208_remove,
|
|
+};
|
|
|
|
-static int __init isl1208_init(void)
|
|
+static int __init
|
|
+isl1208_init(void)
|
|
{
|
|
return i2c_add_driver(&isl1208_driver);
|
|
}
|
|
|
|
-static void __exit isl1208_exit(void)
|
|
+static void __exit
|
|
+isl1208_exit(void)
|
|
{
|
|
i2c_del_driver(&isl1208_driver);
|
|
}
|