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-rw-r--r--drivers/i2c/busses/i2c-omap.c35
-rw-r--r--drivers/i2c/busses/i2c-stu300.c2
2 files changed, 35 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index b605ff3a1fa0..829a2a1029f7 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -847,11 +847,15 @@ complete:
847 dev_err(dev->dev, "Arbitration lost\n"); 847 dev_err(dev->dev, "Arbitration lost\n");
848 err |= OMAP_I2C_STAT_AL; 848 err |= OMAP_I2C_STAT_AL;
849 } 849 }
850 /*
851 * ProDB0017052: Clear ARDY bit twice
852 */
850 if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK | 853 if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK |
851 OMAP_I2C_STAT_AL)) { 854 OMAP_I2C_STAT_AL)) {
852 omap_i2c_ack_stat(dev, stat & 855 omap_i2c_ack_stat(dev, stat &
853 (OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR | 856 (OMAP_I2C_STAT_RRDY | OMAP_I2C_STAT_RDR |
854 OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR)); 857 OMAP_I2C_STAT_XRDY | OMAP_I2C_STAT_XDR |
858 OMAP_I2C_STAT_ARDY));
855 omap_i2c_complete_cmd(dev, err); 859 omap_i2c_complete_cmd(dev, err);
856 return IRQ_HANDLED; 860 return IRQ_HANDLED;
857 } 861 }
@@ -1137,12 +1141,41 @@ omap_i2c_remove(struct platform_device *pdev)
1137 return 0; 1141 return 0;
1138} 1142}
1139 1143
1144#ifdef CONFIG_SUSPEND
1145static int omap_i2c_suspend(struct device *dev)
1146{
1147 if (!pm_runtime_suspended(dev))
1148 if (dev->bus && dev->bus->pm && dev->bus->pm->runtime_suspend)
1149 dev->bus->pm->runtime_suspend(dev);
1150
1151 return 0;
1152}
1153
1154static int omap_i2c_resume(struct device *dev)
1155{
1156 if (!pm_runtime_suspended(dev))
1157 if (dev->bus && dev->bus->pm && dev->bus->pm->runtime_resume)
1158 dev->bus->pm->runtime_resume(dev);
1159
1160 return 0;
1161}
1162
1163static struct dev_pm_ops omap_i2c_pm_ops = {
1164 .suspend = omap_i2c_suspend,
1165 .resume = omap_i2c_resume,
1166};
1167#define OMAP_I2C_PM_OPS (&omap_i2c_pm_ops)
1168#else
1169#define OMAP_I2C_PM_OPS NULL
1170#endif
1171
1140static struct platform_driver omap_i2c_driver = { 1172static struct platform_driver omap_i2c_driver = {
1141 .probe = omap_i2c_probe, 1173 .probe = omap_i2c_probe,
1142 .remove = omap_i2c_remove, 1174 .remove = omap_i2c_remove,
1143 .driver = { 1175 .driver = {
1144 .name = "omap_i2c", 1176 .name = "omap_i2c",
1145 .owner = THIS_MODULE, 1177 .owner = THIS_MODULE,
1178 .pm = OMAP_I2C_PM_OPS,
1146 }, 1179 },
1147}; 1180};
1148 1181
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 495be451d326..266135ddf7fa 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -942,7 +942,7 @@ stu300_probe(struct platform_device *pdev)
942 adap->owner = THIS_MODULE; 942 adap->owner = THIS_MODULE;
943 /* DDC class but actually often used for more generic I2C */ 943 /* DDC class but actually often used for more generic I2C */
944 adap->class = I2C_CLASS_DDC; 944 adap->class = I2C_CLASS_DDC;
945 strncpy(adap->name, "ST Microelectronics DDC I2C adapter", 945 strlcpy(adap->name, "ST Microelectronics DDC I2C adapter",
946 sizeof(adap->name)); 946 sizeof(adap->name));
947 adap->nr = bus_nr; 947 adap->nr = bus_nr;
948 adap->algo = &stu300_algo; 948 adap->algo = &stu300_algo;