[PATCH v3 2/2] i2c: New bus driver for the Qualcomm QUP I2C controller
From: joe@perches.com (Joe Perches)
Date: 2014-02-21 00:52:26
Also in:
linux-arm-msm, linux-devicetree, linux-i2c, lkml
On Thu, 2014-02-20 at 16:38 -0800, Bjorn Andersson wrote:
This bus driver supports the QUP i2c hardware controller in the Qualcomm SOCs. The Qualcomm Universal Peripheral Engine (QUP) is a general purpose data path engine with input/output FIFOs and an embedded i2c mini-core. The driver supports FIFO mode (for low bandwidth applications) and block mode (interrupt generated for each block-size data transfer).
trivia:
quoted hunk ↗ jump to hunk
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
[]
+#ifdef CONFIG_PM_SLEEP
+static int qup_i2c_suspend(struct device *device)
+{
+ dev_dbg(device, "system suspend");
+ qup_i2c_pm_suspend_runtime(device);
+ return 0;
+}
+
+static int qup_i2c_resume(struct device *device)
+{
+ dev_dbg(device, "system resume");
+ qup_i2c_pm_resume_runtime(device);
+ pm_runtime_mark_last_busy(device);
+ pm_request_autosuspend(device);
+ return 0;
+}
+#endifMissing terminating newlines for dev_dbg statements.