Date: Wed, 6 Nov 2019 14:55:24 +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: r354396 - in head/sys: arm/allwinner arm64/rockchip dev/extres/regulator Message-ID: <201911061455.xA6EtOba070533@repo.freebsd.org>
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Author: manu Date: Wed Nov 6 14:55:24 2019 New Revision: 354396 URL: https://svnweb.freebsd.org/changeset/base/354396 Log: regulator: Add regulator_check_voltage function This function will call the regnode_check_voltage method for a given regulator and check if the desired voltage in reachable by it. Also adds a default method that check the std_param and which should be enough for most regulators and add it as the method for axp* rk805 and fixed regulators. Reviewed by: mmel MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D22260 Modified: head/sys/arm/allwinner/axp209.c head/sys/arm/allwinner/axp81x.c head/sys/arm64/rockchip/rk805.c head/sys/dev/extres/regulator/regnode_if.m head/sys/dev/extres/regulator/regulator.c head/sys/dev/extres/regulator/regulator.h head/sys/dev/extres/regulator/regulator_fixed.c Modified: head/sys/arm/allwinner/axp209.c ============================================================================== --- head/sys/arm/allwinner/axp209.c Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/arm/allwinner/axp209.c Wed Nov 6 14:55:24 2019 (r354396) @@ -753,6 +753,7 @@ static regnode_method_t axp2xx_regnode_methods[] = { REGNODEMETHOD(regnode_enable, axp2xx_regnode_enable), REGNODEMETHOD(regnode_set_voltage, axp2xx_regnode_set_voltage), REGNODEMETHOD(regnode_get_voltage, axp2xx_regnode_get_voltage), + REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage), REGNODEMETHOD_END }; DEFINE_CLASS_1(axp2xx_regnode, axp2xx_regnode_class, axp2xx_regnode_methods, Modified: head/sys/arm/allwinner/axp81x.c ============================================================================== --- head/sys/arm/allwinner/axp81x.c Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/arm/allwinner/axp81x.c Wed Nov 6 14:55:24 2019 (r354396) @@ -866,6 +866,7 @@ static regnode_method_t axp8xx_regnode_methods[] = { REGNODEMETHOD(regnode_enable, axp8xx_regnode_enable), REGNODEMETHOD(regnode_set_voltage, axp8xx_regnode_set_voltage), REGNODEMETHOD(regnode_get_voltage, axp8xx_regnode_get_voltage), + REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage), REGNODEMETHOD_END }; DEFINE_CLASS_1(axp8xx_regnode, axp8xx_regnode_class, axp8xx_regnode_methods, Modified: head/sys/arm64/rockchip/rk805.c ============================================================================== --- head/sys/arm64/rockchip/rk805.c Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/arm64/rockchip/rk805.c Wed Nov 6 14:55:24 2019 (r354396) @@ -362,6 +362,7 @@ static regnode_method_t rk805_regnode_methods[] = { REGNODEMETHOD(regnode_enable, rk805_regnode_enable), REGNODEMETHOD(regnode_set_voltage, rk805_regnode_set_voltage), REGNODEMETHOD(regnode_get_voltage, rk805_regnode_get_voltage), + REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage), REGNODEMETHOD_END }; DEFINE_CLASS_1(rk805_regnode, rk805_regnode_class, rk805_regnode_methods, Modified: head/sys/dev/extres/regulator/regnode_if.m ============================================================================== --- head/sys/dev/extres/regulator/regnode_if.m Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/dev/extres/regulator/regnode_if.m Wed Nov 6 14:55:24 2019 (r354396) @@ -91,6 +91,15 @@ METHOD int get_voltage { }; # +# Check if a given voltage is supported by the regulator +# Returns 0 on success or a standard errno value. +# +METHOD int check_voltage { + struct regnode *regnode; + int uvolt; +}; + +# # Stop (shutdown) regulator # Returns 0 on success or a standard errno value. # Modified: head/sys/dev/extres/regulator/regulator.c ============================================================================== --- head/sys/dev/extres/regulator/regulator.c Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/dev/extres/regulator/regulator.c Wed Nov 6 14:55:24 2019 (r354396) @@ -84,6 +84,7 @@ static regnode_method_t regnode_methods[] = { REGNODEMETHOD(regnode_status, regnode_method_status), REGNODEMETHOD(regnode_set_voltage, regnode_method_set_voltage), REGNODEMETHOD(regnode_get_voltage, regnode_method_get_voltage), + REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage), REGNODEMETHOD_END }; @@ -278,6 +279,16 @@ regnode_method_get_voltage(struct regnode *regnode, in (regnode->std_param.max_uvolt - regnode->std_param.min_uvolt) / 2); } +int +regnode_method_check_voltage(struct regnode *regnode, int uvolt) +{ + + if ((uvolt > regnode->std_param.max_uvolt) || + (uvolt < regnode->std_param.min_uvolt)) + return (ERANGE); + return (0); +} + /* ---------------------------------------------------------------------------- * * Internal functions. @@ -991,6 +1002,22 @@ regulator_set_voltage(regulator_t reg, int min_uvolt, reg->min_uvolt = min_uvolt; reg->max_uvolt = max_uvolt; } + REG_TOPO_UNLOCK(); + return (rv); +} + +int +regulator_check_voltage(regulator_t reg, int uvolt) +{ + int rv; + struct regnode *regnode; + + regnode = reg->regnode; + KASSERT(regnode->ref_cnt > 0, + ("Attempt to access unreferenced regulator: %s\n", regnode->name)); + + REG_TOPO_SLOCK(); + rv = REGNODE_CHECK_VOLTAGE(regnode, uvolt); REG_TOPO_UNLOCK(); return (rv); } Modified: head/sys/dev/extres/regulator/regulator.h ============================================================================== --- head/sys/dev/extres/regulator/regulator.h Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/dev/extres/regulator/regulator.h Wed Nov 6 14:55:24 2019 (r354396) @@ -117,6 +117,10 @@ int regnode_status(struct regnode *regnode, int *statu int regnode_get_voltage(struct regnode *regnode, int *uvolt); int regnode_set_voltage(struct regnode *regnode, int min_uvolt, int max_uvolt); int regnode_set_constraint(struct regnode *regnode); + +/* Standard method that aren't default */ +int regnode_method_check_voltage(struct regnode *regnode, int uvolt); + #ifdef FDT phandle_t regnode_get_ofw_node(struct regnode *regnode); #endif @@ -134,6 +138,7 @@ int regulator_stop(regulator_t reg); int regulator_status(regulator_t reg, int *status); int regulator_get_voltage(regulator_t reg, int *uvolt); int regulator_set_voltage(regulator_t reg, int min_uvolt, int max_uvolt); +int regulator_check_voltage(regulator_t reg, int uvolt); #ifdef FDT int regulator_get_by_ofw_property(device_t dev, phandle_t node, char *name, Modified: head/sys/dev/extres/regulator/regulator_fixed.c ============================================================================== --- head/sys/dev/extres/regulator/regulator_fixed.c Wed Nov 6 14:43:35 2019 (r354395) +++ head/sys/dev/extres/regulator/regulator_fixed.c Wed Nov 6 14:55:24 2019 (r354396) @@ -80,6 +80,7 @@ static regnode_method_t regnode_fixed_methods[] = { REGNODEMETHOD(regnode_enable, regnode_fixed_enable), REGNODEMETHOD(regnode_status, regnode_fixed_status), REGNODEMETHOD(regnode_stop, regnode_fixed_stop), + REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage), REGNODEMETHOD_END }; DEFINE_CLASS_1(regnode_fixed, regnode_fixed_class, regnode_fixed_methods,
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