From: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com> To: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>, "Mark Rutland" <mark.rutland@arm.com>, Rob Herring <robh+dt@kernel.org>, "Tony Lindgren" <tony@atomide.com>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-omap@vger.kernel.org> Subject: [PATCH 2/2] mfd: tps65218.c: Add input voltage options Date: Tue, 18 Dec 2018 09:05:56 +0100 [thread overview] Message-ID: <1545120356-7749-3-git-send-email-Christian.Hohnstaedt@wago.com> (raw) In-Reply-To: <1545120356-7749-1-git-send-email-Christian.Hohnstaedt@wago.com> These options apply to all regulators in this chip. strict-supply-voltage: Set STRICT flag in CONFIG1 under-voltage-limit: Select 2.75, 2.95, 3.25 or 3.35 V UVLO in CONFIG1 under-voltage-hysteresis: Select 200mV or 400mV UVLOHYS in CONFIG2 Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com> --- drivers/mfd/tps65218.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c index 8bcdecf..f5e559b 100644 --- a/drivers/mfd/tps65218.c +++ b/drivers/mfd/tps65218.c @@ -211,6 +211,50 @@ static const struct of_device_id of_tps65218_match_table[] = { }; MODULE_DEVICE_TABLE(of, of_tps65218_match_table); +static void tps65218_options(struct tps65218 *tps) +{ + struct device *dev = tps->dev; + struct device_node *np = dev->of_node; + u32 pval; + + if (!of_property_read_u32(np, "strict-supply-voltage", &pval)) { + tps65218_update_bits(tps, TPS65218_REG_CONFIG1, + TPS65218_CONFIG1_STRICT, + pval ? TPS65218_CONFIG1_STRICT : 0, + TPS65218_PROTECT_L1); + dev_dbg(dev, "tps65218 strict-supply-voltage: %d\n", pval); + } + if (!of_property_read_u32(np, "under-voltage-hysteresis", &pval)) { + if (pval != 400000 && pval != 200000) { + dev_err(dev, + "under-voltage-hysteresis must be %d or %d\n", + 200000, 400000); + } else { + tps65218_update_bits(tps, TPS65218_REG_CONFIG2, + TPS65218_CONFIG2_UVLOHYS, + pval == 400000 ? TPS65218_CONFIG2_UVLOHYS : 0, + TPS65218_PROTECT_L1); + } + dev_dbg(dev, "tps65218 under-voltage-hysteresis: %d\n", pval); + } + if (!of_property_read_u32(np, "under-voltage-limit", &pval)) { + int i, vals[] = { 275, 295, 325, 335 }; + + for (i = 0; i < ARRAY_SIZE(vals); i++) { + if (pval == vals[i] * 10000) + break; + } + if (i < ARRAY_SIZE(vals)) { + tps65218_update_bits(tps, TPS65218_REG_CONFIG1, + TPS65218_CONFIG1_UVLO_MASK, i, + TPS65218_PROTECT_L1); + } else { + dev_err(dev, "Invalid under-voltage-limit: %d\n", pval); + } + dev_dbg(dev, "tps65218 under-voltage-limit: %d=%d\n", pval, i); + } +} + static int tps65218_probe(struct i2c_client *client, const struct i2c_device_id *ids) { @@ -249,6 +293,8 @@ static int tps65218_probe(struct i2c_client *client, tps->rev = chipid & TPS65218_CHIPID_REV_MASK; + tps65218_options(tps); + ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65218_cells, ARRAY_SIZE(tps65218_cells), NULL, 0, regmap_irq_get_domain(tps->irq_data)); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com> To: Lee Jones <lee.jones@linaro.org> Cc: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Rob Herring <robh+dt@kernel.org>, Tony Lindgren <tony@atomide.com>, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH 2/2] mfd: tps65218.c: Add input voltage options Date: Tue, 18 Dec 2018 09:05:56 +0100 [thread overview] Message-ID: <1545120356-7749-3-git-send-email-Christian.Hohnstaedt@wago.com> (raw) In-Reply-To: <1545120356-7749-1-git-send-email-Christian.Hohnstaedt@wago.com> These options apply to all regulators in this chip. strict-supply-voltage: Set STRICT flag in CONFIG1 under-voltage-limit: Select 2.75, 2.95, 3.25 or 3.35 V UVLO in CONFIG1 under-voltage-hysteresis: Select 200mV or 400mV UVLOHYS in CONFIG2 Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com> --- drivers/mfd/tps65218.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c index 8bcdecf..f5e559b 100644 --- a/drivers/mfd/tps65218.c +++ b/drivers/mfd/tps65218.c @@ -211,6 +211,50 @@ static const struct of_device_id of_tps65218_match_table[] = { }; MODULE_DEVICE_TABLE(of, of_tps65218_match_table); +static void tps65218_options(struct tps65218 *tps) +{ + struct device *dev = tps->dev; + struct device_node *np = dev->of_node; + u32 pval; + + if (!of_property_read_u32(np, "strict-supply-voltage", &pval)) { + tps65218_update_bits(tps, TPS65218_REG_CONFIG1, + TPS65218_CONFIG1_STRICT, + pval ? TPS65218_CONFIG1_STRICT : 0, + TPS65218_PROTECT_L1); + dev_dbg(dev, "tps65218 strict-supply-voltage: %d\n", pval); + } + if (!of_property_read_u32(np, "under-voltage-hysteresis", &pval)) { + if (pval != 400000 && pval != 200000) { + dev_err(dev, + "under-voltage-hysteresis must be %d or %d\n", + 200000, 400000); + } else { + tps65218_update_bits(tps, TPS65218_REG_CONFIG2, + TPS65218_CONFIG2_UVLOHYS, + pval == 400000 ? TPS65218_CONFIG2_UVLOHYS : 0, + TPS65218_PROTECT_L1); + } + dev_dbg(dev, "tps65218 under-voltage-hysteresis: %d\n", pval); + } + if (!of_property_read_u32(np, "under-voltage-limit", &pval)) { + int i, vals[] = { 275, 295, 325, 335 }; + + for (i = 0; i < ARRAY_SIZE(vals); i++) { + if (pval == vals[i] * 10000) + break; + } + if (i < ARRAY_SIZE(vals)) { + tps65218_update_bits(tps, TPS65218_REG_CONFIG1, + TPS65218_CONFIG1_UVLO_MASK, i, + TPS65218_PROTECT_L1); + } else { + dev_err(dev, "Invalid under-voltage-limit: %d\n", pval); + } + dev_dbg(dev, "tps65218 under-voltage-limit: %d=%d\n", pval, i); + } +} + static int tps65218_probe(struct i2c_client *client, const struct i2c_device_id *ids) { @@ -249,6 +293,8 @@ static int tps65218_probe(struct i2c_client *client, tps->rev = chipid & TPS65218_CHIPID_REV_MASK; + tps65218_options(tps); + ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65218_cells, ARRAY_SIZE(tps65218_cells), NULL, 0, regmap_irq_get_domain(tps->irq_data)); -- 2.7.4
next prev parent reply other threads:[~2018-12-18 8:06 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-18 8:05 [PATCH 0/2] Add input voltage configuration for TPS65218 Christian Hohnstaedt 2018-12-18 8:05 ` Christian Hohnstaedt 2018-12-18 8:05 ` [PATCH 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt 2018-12-18 8:05 ` Christian Hohnstaedt 2018-12-24 9:15 ` J, KEERTHY 2018-12-24 9:15 ` J, KEERTHY 2018-12-28 22:51 ` Rob Herring 2018-12-18 8:05 ` Christian Hohnstaedt [this message] 2018-12-18 8:05 ` [PATCH 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt 2018-12-21 11:01 ` Lee Jones 2018-12-23 16:40 ` Tony Lindgren 2018-12-24 6:32 ` Lee Jones 2018-12-24 9:01 ` J, KEERTHY 2018-12-24 9:01 ` J, KEERTHY 2018-12-24 9:38 ` J, KEERTHY 2018-12-24 9:38 ` J, KEERTHY 2019-01-03 13:47 ` [PATCH v2 0/2] Add input voltage configuration for TPS65218 Christian Hohnstaedt 2019-01-03 13:47 ` Christian Hohnstaedt 2019-01-14 8:16 ` [PATCH v3 " Christian Hohnstaedt 2019-01-14 8:16 ` Christian Hohnstaedt 2019-01-14 8:16 ` [PATCH v3 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt 2019-01-14 8:16 ` Christian Hohnstaedt 2019-01-14 8:16 ` [PATCH v3 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt 2019-01-14 8:16 ` Christian Hohnstaedt 2019-01-16 14:13 ` Lee Jones 2019-01-17 5:54 ` Christian Hohnstaedt 2019-01-17 5:54 ` Christian Hohnstaedt 2019-01-17 8:07 ` Lee Jones 2019-01-17 8:08 ` Lee Jones 2019-01-03 13:47 ` [PATCH v2 1/2] dt-bindings: regulator: extend tps65218 bindings Christian Hohnstaedt 2019-01-03 13:47 ` Christian Hohnstaedt 2019-01-11 16:17 ` Rob Herring 2019-01-03 13:47 ` [PATCH v2 2/2] mfd: tps65218.c: Add input voltage options Christian Hohnstaedt 2019-01-03 13:47 ` Christian Hohnstaedt 2019-01-14 6:38 ` Keerthy 2019-01-14 6:38 ` Keerthy
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