Messages in this thread Patch in this message | | | From | Mark Brown <> | Date | Sun, 13 Mar 2016 15:15:47 +0700 | Subject | Applied "regulator: pwm: Add support to have multiple instance of pwm regulator" to the regulator tree |
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The patch
regulator: pwm: Add support to have multiple instance of pwm regulator
has been applied to the regulator tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From f907a0a9498db29fb7c91b798d7af70add7dd86e Mon Sep 17 00:00:00 2001 From: Laxman Dewangan <ldewangan@nvidia.com> Date: Tue, 8 Mar 2016 16:23:22 +0530 Subject: [PATCH] regulator: pwm: Add support to have multiple instance of pwm regulator
Some of platforms like Nvidia's Tegra210 Jetson-TX1 platform has multiple PMW based regulators. Add support to have multiple instances of the driver by not changing any global data of pwm regulator and if required, making instance specific copy and then making changes.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- drivers/regulator/pwm-regulator.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-)
diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 4d8eb3506dc8..4689d62f4841 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -27,6 +27,13 @@ struct pwm_regulator_data { /* Voltage table */ struct pwm_voltages *duty_cycle_table; + + /* regulator descriptor */ + struct regulator_desc desc; + + /* Regulator ops */ + struct regulator_ops ops; + int state; /* Continuous voltage */ @@ -212,8 +219,10 @@ static int pwm_regulator_init_table(struct platform_device *pdev, } drvdata->duty_cycle_table = duty_cycle_table; - pwm_regulator_desc.ops = &pwm_regulator_voltage_table_ops; - pwm_regulator_desc.n_voltages = length / sizeof(*duty_cycle_table); + memcpy(&drvdata->ops, &pwm_regulator_voltage_table_ops, + sizeof(drvdata->ops)); + drvdata->desc.ops = &drvdata->ops; + drvdata->desc.n_voltages = length / sizeof(*duty_cycle_table); return 0; } @@ -221,8 +230,10 @@ static int pwm_regulator_init_table(struct platform_device *pdev, static int pwm_regulator_init_continuous(struct platform_device *pdev, struct pwm_regulator_data *drvdata) { - pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops; - pwm_regulator_desc.continuous_voltage_range = true; + memcpy(&drvdata->ops, &pwm_regulator_voltage_continuous_ops, + sizeof(drvdata->ops)); + drvdata->desc.ops = &drvdata->ops; + drvdata->desc.continuous_voltage_range = true; return 0; } @@ -245,6 +256,8 @@ static int pwm_regulator_probe(struct platform_device *pdev) if (!drvdata) return -ENOMEM; + memcpy(&drvdata->desc, &pwm_regulator_desc, sizeof(drvdata->desc)); + if (of_find_property(np, "voltage-table", NULL)) ret = pwm_regulator_init_table(pdev, drvdata); else @@ -253,7 +266,7 @@ static int pwm_regulator_probe(struct platform_device *pdev) return ret; init_data = of_get_regulator_init_data(&pdev->dev, np, - &pwm_regulator_desc); + &drvdata->desc); if (!init_data) return -ENOMEM; @@ -269,10 +282,10 @@ static int pwm_regulator_probe(struct platform_device *pdev) } regulator = devm_regulator_register(&pdev->dev, - &pwm_regulator_desc, &config); + &drvdata->desc, &config); if (IS_ERR(regulator)) { dev_err(&pdev->dev, "Failed to register regulator %s\n", - pwm_regulator_desc.name); + drvdata->desc.name); return PTR_ERR(regulator); } -- 2.7.0
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