kernel/drivers/clocksource/sh_mtu2.c, branch linux-4.1.y

clocksource: sh_mtu2: Add DT support

2014-07-04T13:50:29Z

Document DT bindings and parse them in the MTU2 driver. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Replace global spinlock with a per-device spinlock

2014-07-02T14:01:50Z

The global spinlock is used to protect the shared start/stop register. Now that all MTU2 channels are handled by a single device instance, use a per-device spinlock. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Drop support for legacy platform data

2014-07-02T14:01:50Z

Now that all platforms have switched to the new-style platform data, drop support for the legacy version. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Remove unnecessary OOM messages

2014-05-23T07:23:11Z

The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. [dlezcano] : refreshed against latest modifications: kmalloc -> kzalloc Signed-off-by: Jingoo Han Signed-off-by: Daniel Lezcano

clocksource: sh_mtu2: Sort headers alphabetically

2014-04-16T10:03:34Z

This helps locating duplicates and inserting new headers. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Remove FSF mail address from GPL notice

2014-04-16T10:03:33Z

Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Rename clock to "fck" in the non-legacy case

2014-04-16T10:03:33Z

The sh_mtu2 driver gets the MTU2 functional clock using a connection ID of "mtu2_fck". While all SH SoCs create clock lookup entries with a NULL device ID and a "mtu2_fck" connection ID, the ARM SoCs use the device ID only with a NULL connection ID. This works on legacy platforms but will break on ARM with DT boot. Fix the situation by using a connection ID of "fck" in the non-legacy platform data case. Clock lookup entries will be renamed to use the device ID as well as the connection ID as platforms get moved to new platform data. The legacy code will eventually be dropped, leaving us with device ID based clock lookup, compatible with DT boot. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Add support for multiple channels per device

2014-04-16T10:03:32Z

MTU2 hardware devices can support multiple channels, with global registers and per-channel registers. The sh_mtu2 driver currently models the hardware with one Linux device per channel. This model makes it difficult to handle global registers in a clean way. Add support for a new model that uses one Linux device per timer with multiple channels per device. This requires changes to platform data, add new channel configuration fields. Support for the legacy model is kept and will be removed after all platforms switch to the new model. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Hardcode MTU2 clock event rating to 200

2014-04-16T10:03:32Z

All boards use clock event ratings of 200 for the MTU2, hardcode it in the driver. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang

clocksource: sh_mtu2: Set cpumask to cpu_possible_mask

2014-04-16T10:03:31Z

The MTU2 is not tied to CPU0, make it usable on any CPU. Signed-off-by: Laurent Pinchart Tested-by: Wolfram Sang