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Commit 96bb42b8 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] radio-sf16fmi: clamp frequency 



Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent f90842d6

drivers/media/radio/radio-sf16fmi.c

+5 −6
Original line number Diff line number Diff line
@@ -55,8 +55,8 @@ static struct fmi fmi_card; 
static struct pnp_dev *dev;

bool pnp_attached;



#define RSF16_MINFREQ (87 * 16000)

#define RSF16_MAXFREQ (108 * 16000)

#define RSF16_MINFREQ (87U * 16000)

#define RSF16_MAXFREQ (108U * 16000)



#define FMI_BIT_TUN_CE		(1 << 0)

#define FMI_BIT_TUN_CLK		(1 << 1)
@@ -155,15 +155,14 @@ static int vidioc_s_frequency(struct file *file, void *priv, 
					const struct v4l2_frequency *f)

{

	struct fmi *fmi = video_drvdata(file);

	unsigned freq = f->frequency;



	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)

		return -EINVAL;

	if (f->frequency < RSF16_MINFREQ ||

			f->frequency > RSF16_MAXFREQ)

		return -EINVAL;

	clamp(freq, RSF16_MINFREQ, RSF16_MAXFREQ);

	/* rounding in steps of 800 to match the freq

	   that will be used */

	lm7000_set_freq((f->frequency / 800) * 800, fmi, fmi_set_pins);

	lm7000_set_freq((freq / 800) * 800, fmi, fmi_set_pins);

	return 0;

}