Hi Thierry,
On 12/03/2013 07:24 PM, Thierry Reding wrote:
On Thu, Sep 12, 2013 at 10:33:50AM +0900, Milo Kim wrote:
This is the other of the LP3943 MFD driver.
LP3943 can be used as a PWM generator, up to 2 channels.
* Two PWM generators supported
* Supported PWM operations
request, free, config, enable and disable
* Pin assignment
A driver data, 'pin_used' is checked when a PWM is requested.
If the output pin is already assigned, then returns as failure.
If the pin is available, 'pin_used' is set.
When the PWM is not used anymore, then it is cleared.
It is defined as unsigned long type for atomic bit operation APIs,
but only LSB 16bits are used because LP3943 has 16 outputs.
Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
Signed-off-by: Milo Kim <milo.kim@xxxxxx>
---
* Patch v3
Manual polarity not supported any more.
Add encapsulation functions for accessing internal data structure.
Use pwm_set_chip_data() and pwm_get_chip_data().
And other code fixes based on Thierry's feedback.
drivers/pwm/Kconfig | 10 ++
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-lp3943.c | 314 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 325 insertions(+)
create mode 100644 drivers/pwm/pwm-lp3943.c
Hi Milo,
Is this patchset still the latest version? I've tried to remember the
status of this series, but I could only draw a blank.
Thanks a lot for this reminder.
I forgot to check the status.
The latest one is the v4, but LP3943 PWM driver code is same as v3.
Update from v3 to v4:
Move the driver description from the documentation to the MFD
driver file.
There are two things to be ACKed for v4.
One is the PWM driver. (https://lkml.org/lkml/2013/9/25/11)
The other is the documentation. (https://lkml.org/lkml/2013/9/25/10)
Thanks,
Milo
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