static int check_and_set_masks()

in ptp_clockmatrix.c [1180:1213]

• 32 lines of code
• 8 McCabe index (conditional complexity)

static int check_and_set_masks(struct idtcm *idtcm,
			       u16 regaddr,
			       u8 val)
{
	int err = 0;

	switch (regaddr) {
	case TOD_MASK_ADDR:
		if ((val & 0xf0) || !(val & 0x0f)) {
			dev_err(idtcm->dev, "Invalid TOD mask 0x%02x", val);
			err = -EINVAL;
		} else {
			idtcm->tod_mask = val;
		}
		break;
	case TOD0_PTP_PLL_ADDR:
		err = set_tod_ptp_pll(idtcm, 0, val);
		break;
	case TOD1_PTP_PLL_ADDR:
		err = set_tod_ptp_pll(idtcm, 1, val);
		break;
	case TOD2_PTP_PLL_ADDR:
		err = set_tod_ptp_pll(idtcm, 2, val);
		break;
	case TOD3_PTP_PLL_ADDR:
		err = set_tod_ptp_pll(idtcm, 3, val);
		break;
	default:
		err = set_pll_output_mask(idtcm, regaddr, val);
		break;
	}

	return err;
}