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The ZTE ZX platform is getting removed, so this driver is no longer
needed.
Cc: Jun Nie <[email protected]>
Cc: Shawn Guo <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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zx_pwm_probe() called clk_prepare_enable() before; this must be undone
in the error path.
Fixes: 4836193c435c ("pwm: Add ZTE ZX PWM device driver")
Signed-off-by: Uwe Kleine-König <[email protected]>
Acked-by: Shawn Guo <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <[email protected]>
Reviewed-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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It is surprising for a PWM consumer when the variable holding the
requested state is modified by pwm_apply_state(). Consider for example a
driver doing:
#define PERIOD 5000000
#define DUTY_LITTLE 10
...
struct pwm_state state = {
.period = PERIOD,
.duty_cycle = DUTY_LITTLE,
.polarity = PWM_POLARITY_NORMAL,
.enabled = true,
};
pwm_apply_state(mypwm, &state);
...
state.duty_cycle = PERIOD / 2;
pwm_apply_state(mypwm, &state);
For sure the second call to pwm_apply_state() should still have
state.period = PERIOD and not something the hardware driver chose for a
reason that doesn't necessarily apply to the second call.
So declare the state argument as a pointer to a const type and adapt all
drivers' .apply callbacks.
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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It adds PWM device driver for ZTE ZX family SoCs. The PWM controller
supports 4 devices with polarity configuration.
The driver has been tested with pwm-regulator support to scale core
voltage via cpufreq.
Signed-off-by: Shawn Guo <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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