Date: Sun, 19 Jan 2020 19:56:50 +0000 (UTC) From: Emmanuel Vadot <manu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r356893 - head/sys/arm64/rockchip Message-ID: <202001191956.00JJuoTb008583@repo.freebsd.org>
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Author: manu Date: Sun Jan 19 19:56:50 2020 New Revision: 356893 URL: https://svnweb.freebsd.org/changeset/base/356893 Log: rk805: Add a regnode_init method This method will set the desired voltaged based on values in the DTS. It will not enable the regulator, this is the job of either a consumer or regnode_set_constraint SYSINIT if the regulator is boot_on or always_on. Reviewed by: mmel MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D23216 Modified: head/sys/arm64/rockchip/rk805.c Modified: head/sys/arm64/rockchip/rk805.c ============================================================================== --- head/sys/arm64/rockchip/rk805.c Sun Jan 19 19:56:05 2020 (r356892) +++ head/sys/arm64/rockchip/rk805.c Sun Jan 19 19:56:50 2020 (r356893) @@ -97,6 +97,9 @@ struct rk805_softc { int nregs; }; +static int rk805_regnode_set_voltage(struct regnode *regnode, int min_uvolt, + int max_uvolt, int *udelay); + static struct rk805_regdef rk805_regdefs[] = { { .id = RK805_DCDC1, @@ -354,7 +357,26 @@ rk805_write(device_t dev, uint8_t reg, uint8_t data) static int rk805_regnode_init(struct regnode *regnode) { - return (0); + struct rk805_reg_sc *sc; + struct regnode_std_param *param; + int rv, udelay; + + sc = regnode_get_softc(regnode); + param = regnode_get_stdparam(regnode); + if (param->min_uvolt == 0) + return (0); + + /* + * Set the regulator at the correct voltage + * Do not enable it, this is will be done either by a + * consumer or by regnode_set_constraint if boot_on is true + */ + rv = rk805_regnode_set_voltage(regnode, param->min_uvolt, + param->max_uvolt, &udelay); + if (rv != 0) + DELAY(udelay); + + return (rv); } static int
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