Thanks for the review.
On 16/11/17 13:18, Vinod Koul wrote:
On Wed, Nov 15, 2017 at 02:10:33PM +0000, srinivas.kandagatla@xxxxxxxxxx wrote:
+menuconfig SLIMBUS
+ tristate "Slimbus support"
+ help
+ Slimbus is standard interface between System-on-Chip and audio codec,
+ and other peripheral components in typical embedded systems.
+
+ If unsure, choose N.
+
+if SLIMBUS
+
+# SlIMbus controllers
Slimbus perhaps?
slimbus is specified as "SLIMbus" in the mipi specs, so I should
probably stay with it and make it consistent across the patchset.
+static int slim_device_match(struct device *dev, struct device_driver *drv)
+{
+ struct slim_device *sbdev = to_slim_device(dev);
+ struct slim_driver *sbdrv = to_slim_driver(drv);
+
+ return slim_match(sbdrv->id_table, sbdev) != NULL;
return !!slim_match() ?
+static int slim_device_probe(struct device *dev)
+{
+ struct slim_device *sbdev;
+ struct slim_driver *sbdrv;
+ int ret = 0;
+
+ sbdev = to_slim_device(dev);
+ sbdrv = to_slim_driver(dev->driver);
+
+ if (sbdrv->probe)
+ ret = sbdrv->probe(sbdev);
shouldn't probe be mandatory :)
Yep it is .. I will fix that..
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 1c2e8d6b7274..7d6238863fc1 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -452,6 +452,19 @@ struct spi_device_id {
kernel_ulong_t driver_data; /* Data private to the driver */
};
+/* SLIMbus */
+
+#define SLIMBUS_NAME_SIZE 32
+#define SLIMBUS_MODULE_PREFIX "slim:"
+
+struct slim_device_id {
+ __u16 manf_id, prod_code;
+ __u8 dev_index, instance;
+
+ /* Data private to the driver */
+ kernel_ulong_t driver_data;
As Takashi pointed out in SDW patches, this needs to be aligned.
Okay, I will make sure that driver_data is aligned.
+};
+
I was hoping to see changes to devicetable-offsets.c and file2alias.c as
well as that is required for module autoloading. I think that is required?
+/**
+ * struct slim_device - Slim device handle.
+ * @dev: Driver model representation of the device.
+ * @name: Name of driver to use with this device.
+ * @e_addr: Enumeration address of this device.
+ * @driver: Device's driver. Pointer to access routines.
+ * @laddr: 1-byte Logical address of this device.
+ *
+ * This is the client/device handle returned when a slimbus
+ * device is registered with a controller.
+ * Pointer to this structure is used by client-driver as a handle.
+ */
+struct slim_device {
+ struct device dev;
+ struct slim_eaddr e_addr;
+ struct list_head node;
aligned with others please
Thanks for spotting, this looks like a leftover, There is no use of node
in this structure so I will remove it in next version.
+/**
+ * struct slim_driver - Slimbus 'generic device' (slave) device driver
+ * (similar to 'spi_device' on SPI)
+ * @probe: Binds this driver to a slimbus device.
+ * @remove: Unbinds this driver from the slimbus device.
+ * @shutdown: Standard shutdown callback used during powerdown/halt.
+ * @device_status: This callback is called when
+ * -The device reports present and gets a laddr assigned
+ * -The device reports absent, or the bus goes down.
space after - pls
Yep.. will do that.
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