Merge remote-tracking branch 'regulator/topic/sec' into regulator-next
This commit is contained in:
Mark Brown
commit
04fcec88cd
2 changed files with 212 additions and 46 deletions
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@ -16,12 +16,17 @@
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#include <linux/gpio.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regmap.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/mfd/samsung/core.h>
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#include <linux/mfd/samsung/s2mps11.h>
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#define S2MPS11_REGULATOR_CNT ARRAY_SIZE(regulators)
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struct s2mps11_info {
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struct regulator_dev *rdev[S2MPS11_REGULATOR_MAX];
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@ -31,11 +36,6 @@ struct s2mps11_info {
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int ramp_delay16;
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int ramp_delay7810;
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int ramp_delay9;
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bool buck6_ramp;
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bool buck2_ramp;
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bool buck3_ramp;
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bool buck4_ramp;
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};
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static int get_ramp_delay(int ramp_delay)
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@ -50,9 +50,171 @@ static int get_ramp_delay(int ramp_delay)
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break;
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cnt++;
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}
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if (cnt > 3)
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cnt = 3;
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return cnt;
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}
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static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
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unsigned int old_selector,
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unsigned int new_selector)
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{
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struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
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unsigned int ramp_delay = 0;
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int old_volt, new_volt;
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switch (rdev->desc->id) {
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case S2MPS11_BUCK2:
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ramp_delay = s2mps11->ramp_delay2;
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break;
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case S2MPS11_BUCK3:
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ramp_delay = s2mps11->ramp_delay34;
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break;
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case S2MPS11_BUCK4:
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ramp_delay = s2mps11->ramp_delay34;
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break;
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case S2MPS11_BUCK5:
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ramp_delay = s2mps11->ramp_delay5;
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break;
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case S2MPS11_BUCK6:
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case S2MPS11_BUCK1:
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ramp_delay = s2mps11->ramp_delay16;
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break;
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case S2MPS11_BUCK7:
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case S2MPS11_BUCK8:
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case S2MPS11_BUCK10:
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ramp_delay = s2mps11->ramp_delay7810;
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break;
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case S2MPS11_BUCK9:
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ramp_delay = s2mps11->ramp_delay9;
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}
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if (ramp_delay == 0)
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ramp_delay = rdev->desc->ramp_delay;
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old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
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new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
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return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
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}
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static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
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{
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struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
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unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
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unsigned int ramp_enable = 1, enable_shift = 0;
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int ret;
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switch (rdev->desc->id) {
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case S2MPS11_BUCK1:
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if (ramp_delay > s2mps11->ramp_delay16)
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s2mps11->ramp_delay16 = ramp_delay;
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else
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ramp_delay = s2mps11->ramp_delay16;
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ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
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break;
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case S2MPS11_BUCK2:
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enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
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if (!ramp_delay) {
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ramp_enable = 0;
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break;
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}
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s2mps11->ramp_delay2 = ramp_delay;
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ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
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ramp_reg = S2MPS11_REG_RAMP;
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break;
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case S2MPS11_BUCK3:
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enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
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if (!ramp_delay) {
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ramp_enable = 0;
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break;
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}
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if (ramp_delay > s2mps11->ramp_delay34)
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s2mps11->ramp_delay34 = ramp_delay;
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else
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ramp_delay = s2mps11->ramp_delay34;
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ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
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ramp_reg = S2MPS11_REG_RAMP;
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break;
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case S2MPS11_BUCK4:
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enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
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if (!ramp_delay) {
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ramp_enable = 0;
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break;
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}
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if (ramp_delay > s2mps11->ramp_delay34)
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s2mps11->ramp_delay34 = ramp_delay;
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else
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ramp_delay = s2mps11->ramp_delay34;
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ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
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ramp_reg = S2MPS11_REG_RAMP;
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break;
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case S2MPS11_BUCK5:
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s2mps11->ramp_delay5 = ramp_delay;
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ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
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break;
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case S2MPS11_BUCK6:
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enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
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if (!ramp_delay) {
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ramp_enable = 0;
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break;
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}
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if (ramp_delay > s2mps11->ramp_delay16)
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s2mps11->ramp_delay16 = ramp_delay;
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else
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ramp_delay = s2mps11->ramp_delay16;
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ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
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break;
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case S2MPS11_BUCK7:
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case S2MPS11_BUCK8:
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case S2MPS11_BUCK10:
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if (ramp_delay > s2mps11->ramp_delay7810)
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s2mps11->ramp_delay7810 = ramp_delay;
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else
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ramp_delay = s2mps11->ramp_delay7810;
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ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
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break;
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case S2MPS11_BUCK9:
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s2mps11->ramp_delay9 = ramp_delay;
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ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
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break;
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default:
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return 0;
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}
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if (!ramp_enable)
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goto ramp_disable;
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if (enable_shift) {
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ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
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1 << enable_shift, 1 << enable_shift);
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if (ret) {
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dev_err(&rdev->dev, "failed to enable ramp rate\n");
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return ret;
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}
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}
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ramp_val = get_ramp_delay(ramp_delay);
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return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
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ramp_val << ramp_shift);
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ramp_disable:
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return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
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1 << enable_shift, 0);
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}
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static struct regulator_ops s2mps11_ldo_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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@ -72,7 +234,8 @@ static struct regulator_ops s2mps11_buck_ops = {
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.disable = regulator_disable_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
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.set_ramp_delay = s2mps11_set_ramp_delay,
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};
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#define regulator_desc_ldo1(num) { \
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@ -239,59 +402,51 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
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{
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struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
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struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
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struct of_regulator_match rdata[S2MPS11_REGULATOR_MAX];
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struct device_node *reg_np = NULL;
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struct regulator_config config = { };
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struct s2mps11_info *s2mps11;
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int i, ret;
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unsigned char ramp_enable, ramp_reg = 0;
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if (!pdata) {
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dev_err(pdev->dev.parent, "Platform data not supplied\n");
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return -ENODEV;
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}
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s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
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GFP_KERNEL);
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if (!s2mps11)
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return -ENOMEM;
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platform_set_drvdata(pdev, s2mps11);
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s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
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s2mps11->ramp_delay34 = pdata->buck34_ramp_delay;
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s2mps11->ramp_delay5 = pdata->buck5_ramp_delay;
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s2mps11->ramp_delay16 = pdata->buck16_ramp_delay;
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s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay;
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s2mps11->ramp_delay9 = pdata->buck9_ramp_delay;
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s2mps11->buck6_ramp = pdata->buck6_ramp_enable;
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s2mps11->buck2_ramp = pdata->buck2_ramp_enable;
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s2mps11->buck3_ramp = pdata->buck3_ramp_enable;
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s2mps11->buck4_ramp = pdata->buck4_ramp_enable;
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ramp_enable = (s2mps11->buck2_ramp << 3) | (s2mps11->buck3_ramp << 2) |
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(s2mps11->buck4_ramp << 1) | s2mps11->buck6_ramp ;
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if (ramp_enable) {
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if (s2mps11->buck2_ramp)
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay2) << 6;
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if (s2mps11->buck3_ramp || s2mps11->buck4_ramp)
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay34) << 4;
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sec_reg_write(iodev, S2MPS11_REG_RAMP, ramp_reg | ramp_enable);
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if (!iodev->dev->of_node) {
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if (pdata) {
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goto common_reg;
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} else {
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dev_err(pdev->dev.parent,
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"Platform data or DT node not supplied\n");
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return -ENODEV;
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}
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}
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ramp_reg &= 0x00;
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay5) << 6;
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay16) << 4;
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay7810) << 2;
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ramp_reg |= get_ramp_delay(s2mps11->ramp_delay9);
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sec_reg_write(iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg);
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for (i = 0; i < S2MPS11_REGULATOR_CNT; i++)
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rdata[i].name = regulators[i].name;
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for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
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reg_np = of_find_node_by_name(iodev->dev->of_node, "regulators");
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if (!reg_np) {
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dev_err(&pdev->dev, "could not find regulators sub-node\n");
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return -EINVAL;
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}
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of_regulator_match(&pdev->dev, reg_np, rdata, S2MPS11_REGULATOR_MAX);
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common_reg:
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platform_set_drvdata(pdev, s2mps11);
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config.dev = &pdev->dev;
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config.regmap = iodev->regmap;
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config.init_data = pdata->regulators[i].initdata;
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config.driver_data = s2mps11;
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for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
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if (!reg_np) {
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config.init_data = pdata->regulators[i].initdata;
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} else {
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config.init_data = rdata[i].init_data;
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config.of_node = rdata[i].of_node;
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}
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s2mps11->rdev[i] = regulator_register(®ulators[i], &config);
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if (IS_ERR(s2mps11->rdev[i])) {
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@ -191,6 +191,17 @@ enum s2mps11_regulators {
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#define S2MPS11_BUCK_N_VOLTAGES (S2MPS11_BUCK_VSEL_MASK + 1)
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#define S2MPS11_RAMP_DELAY 25000 /* uV/us */
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#define S2MPS11_BUCK2_RAMP_SHIFT 6
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#define S2MPS11_BUCK34_RAMP_SHIFT 4
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#define S2MPS11_BUCK5_RAMP_SHIFT 6
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#define S2MPS11_BUCK16_RAMP_SHIFT 4
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#define S2MPS11_BUCK7810_RAMP_SHIFT 2
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#define S2MPS11_BUCK9_RAMP_SHIFT 0
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#define S2MPS11_BUCK2_RAMP_EN_SHIFT 3
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#define S2MPS11_BUCK3_RAMP_EN_SHIFT 2
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#define S2MPS11_BUCK4_RAMP_EN_SHIFT 1
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#define S2MPS11_BUCK6_RAMP_EN_SHIFT 0
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#define S2MPS11_PMIC_EN_SHIFT 6
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#define S2MPS11_REGULATOR_MAX (S2MPS11_REG_MAX - 3)
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