[ added dri-devel ML to Cc: ]
On 3/24/20 6:05 PM, Andy Shevchenko wrote:
> Use the atomic API wherever appropriate and get rid of pwm_apply_args()
> call (the reference period and polarity are now explicitly set when
> calling pwm_apply_state()).
>
> We also make use of the pwm_set_relative_duty_cycle() helper to ease
> relative to absolute duty_cycle conversion.
>
> Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Patch queued for v5.8, thanks.
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics
> ---
> drivers/video/fbdev/ssd1307fb.c | 17 +++++------------
> 1 file changed, 5 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
> index 7a6a44a0b7a6..6e543396002a 100644
> --- a/drivers/video/fbdev/ssd1307fb.c
> +++ b/drivers/video/fbdev/ssd1307fb.c
> @@ -79,7 +79,6 @@ struct ssd1307fb_par {
> u32 prechargep1;
> u32 prechargep2;
> struct pwm_device *pwm;
> - u32 pwm_period;
> struct gpio_desc *reset;
> struct regulator *vbat_reg;
> u32 vcomh;
> @@ -297,9 +296,9 @@ static void ssd1307fb_deferred_io(struct fb_info *info,
>
> static int ssd1307fb_init(struct ssd1307fb_par *par)
> {
> + struct pwm_state pwmstate;
> int ret;
> u32 precharge, dclk, com_invdir, compins;
> - struct pwm_args pargs;
>
> if (par->device_info->need_pwm) {
> par->pwm = pwm_get(&par->client->dev, NULL);
> @@ -308,21 +307,15 @@ static int ssd1307fb_init(struct ssd1307fb_par *par)
> return PTR_ERR(par->pwm);
> }
>
> - /*
> - * FIXME: pwm_apply_args() should be removed when switching to
> - * the atomic PWM API.
> - */
> - pwm_apply_args(par->pwm);
> + pwm_init_state(par->pwm, &pwmstate);
> + pwm_set_relative_duty_cycle(&pwmstate, 50, 100);
> + pwm_apply_state(par->pwm, &pwmstate);
>
> - pwm_get_args(par->pwm, &pargs);
> -
> - par->pwm_period = pargs.period;
> /* Enable the PWM */
> - pwm_config(par->pwm, par->pwm_period / 2, par->pwm_period);
> pwm_enable(par->pwm);
>
> dev_dbg(&par->client->dev, "Using PWM%d with a %dns period.\n",
> - par->pwm->pwm, par->pwm_period);
> + par->pwm->pwm, pwm_get_period(par->pwm));
> }
>
> /* Set initial contrast */
>
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