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2014-05-14ARM: shmobile: r7s72100: genmai: add uart alias and activate scif2 as consoleWolfram Sang1-1/+10
We keep the UART naming backwards compatible with the legacy version. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-14ARM: shmobile: r7s72100: add scif nodes to dtsiWolfram Sang1-0/+96
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-14ARM: shmobile: r7s72100: genmai: populate nodes for external clocksWolfram Sang1-0/+8
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-14ARM: shmobile: r7s72100: add essential clock nodes to dtsiWolfram Sang2-1/+113
Only essential clocks are added for now. Other clocks will be added when needed. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-14ARM: shmobile: r7s72100: document MSTP clock supportWolfram Sang1-0/+1
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r7s72100: Switch to new style MTU2 deviceLaurent Pinchart2-18/+10
The MTU2 (Multi-Function Timer Pulse Unit 2) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style MTU2 deviceLaurent Pinchart9-433/+72
The MTU2 (Multi-Function Timer Pulse Unit 2) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7779: Switch to new style TMU deviceLaurent Pinchart2-56/+14
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7778: Switch to new style TMU deviceLaurent Pinchart2-23/+9
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7740: Switch to new style TMU deviceLaurent Pinchart2-90/+15
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: sh73a0: Switch to new style TMU deviceLaurent Pinchart2-45/+14
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: sh7372: Switch to new style TMU deviceLaurent Pinchart2-57/+15
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style TMU deviceLaurent Pinchart30-2486/+239
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7791: Switch to new style CMT deviceLaurent Pinchart3-12/+9
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [horms+renesas@verge.net.au resolved conflict: use clk_names] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7790: Switch to new style CMT deviceLaurent Pinchart3-12/+9
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [horms+renesas@verge.net.au resolved conflict: use clk_names] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a7740: Switch to new style CMT deviceLaurent Pinchart2-25/+13
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: r8a73a4: Switch to new style CMT deviceLaurent Pinchart2-11/+8
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: sh73a0: Switch to new style CMT deviceLaurent Pinchart2-25/+13
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11ARM: shmobile: sh7372: Switch to new style CMT deviceLaurent Pinchart2-19/+7
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style CMT deviceLaurent Pinchart19-484/+106
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-16clocksource: sh_mtu2: Sort headers alphabeticallyLaurent Pinchart1-9/+9
This helps locating duplicates and inserting new headers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Remove FSF mail address from GPL noticeLaurent Pinchart1-4/+0
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 <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Rename clock to "fck" in the non-legacy caseLaurent Pinchart1-1/+1
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 <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Add support for multiple channels per deviceLaurent Pinchart1-54/+130
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 <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Hardcode MTU2 clock event rating to 200Laurent Pinchart1-6/+6
All boards use clock event ratings of 200 for the MTU2, hardcode it in the driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Set cpumask to cpu_possible_maskLaurent Pinchart1-1/+1
The MTU2 is not tied to CPU0, make it usable on any CPU. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Replace hardcoded register values with macrosLaurent Pinchart1-6/+92
Define symbolic macros for all used registers bits. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Allocate channels dynamicallyLaurent Pinchart1-7/+20
This prepares the driver for multi-channel support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Replace kmalloc + memset with kzallocLaurent Pinchart1-5/+1
One kzalloc a day keeps the bugs away. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Add index to struct sh_mtu2_channelLaurent Pinchart1-9/+13
Use the index as the timer start/stop bit and when printing messages to identify the channel. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Add memory base to sh_mtu2_channel structureLaurent Pinchart1-14/+18
The channel memory base is channel-specific, add it to the channel structure in preparation for support of multiple channels per device. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Constify name argument to sh_mtu2_register()Laurent Pinchart1-3/+3
The name argument is assigned to const structure fields only, constify it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Split channel setup to separate functionLaurent Pinchart1-10/+19
Move the channel setup code from sh_mtu2_setup to a new sh_mtu2_setup_channel function and call it from sh_mtu2_setup. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Rename struct sh_mtu2_priv to sh_mtu2_deviceLaurent Pinchart1-32/+33
Channel data is private as well, rename priv to device to make the distrinction between the core device and the channels clearer. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Split channel fields from sh_mtu2_privLaurent Pinchart1-56/+69
Create a new sh_mtu2_channel structure to hold the channel-specific fields in preparation for multiple channels per device support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Turn sh_mtu2_priv fields into local variablesLaurent Pinchart1-5/+5
The rate and periodic fields are used in a single function only, as local variables. Remove them from the structure. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_mtu2: Use request_irq() instead of setup_irq()Laurent Pinchart1-14/+8
The driver claims it needs to register an interrupt handler too early for request_irq(). This might have been true in the past, but the only meaningful difference between request_irq() and setup_irq() today is an additional kzalloc() call in request_irq(). As the driver calls kmalloc() itself we know that the slab allocator is available, we can thus switch to request_irq(). Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com>
2014-04-16clocksource: sh_tmu: Sort headers alphabeticallyLaurent Pinchart1-10/+10
This helps locating duplicates and inserting new headers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Remove FSF mail address from GPL noticeLaurent Pinchart1-4/+0
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 <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Rename clock to "fck" in the non-legacy caseLaurent Pinchart1-1/+2
The sh_tmu driver gets the TMU functional clock using a connection ID of "tmu_fck". While all SH SoCs create clock lookup entries with a NULL device ID and a "tmu_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 <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Add support for multiple channels per deviceLaurent Pinchart1-61/+152
TMU hardware devices can support multiple channels, with global registers and per-channel registers. The sh_tmu 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 <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Hardcode TMU clock event and source ratings to 200Laurent Pinchart1-12/+11
All boards use clock event and clock source ratings of 200 for the TMU, hardcode it in the driver. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Replace hardcoded register values with macrosLaurent Pinchart1-5/+14
Define symbolic macros for all used registers bits. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Allocate channels dynamicallyLaurent Pinchart1-7/+20
This prepares the driver for multi-channel support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Replace kmalloc + memset with kzallocLaurent Pinchart1-5/+1
One kzalloc a day keeps the bugs away. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Add index to struct sh_tmu_channelLaurent Pinchart1-11/+24
Use the index as the timer start/stop bit and when printing messages to identify the channel. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Add memory base to sh_tmu_channel structureLaurent Pinchart1-14/+16
The channel memory base is channel-specific, add it to the channel structure in preparation for support of multiple channels per device. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Constify name argument to sh_tmu_register()Laurent Pinchart1-4/+4
The name argument is assigned to const structure fields only, constify it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Split channel setup to separate functionLaurent Pinchart1-13/+23
Move the channel setup code from sh_tmu_setup to a new sh_tmu_setup_channel function and call it from sh_tmu_setup. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-04-16clocksource: sh_tmu: Rename struct sh_tmu_priv to sh_tmu_deviceLaurent Pinchart1-34/+34
Channel data is private as well, rename priv to device to make the distrinction between the core device and the channels clearer. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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