diff options
Diffstat (limited to 'drivers/regulator')
-rw-r--r-- | drivers/regulator/pbias-regulator.c | 56 |
1 files changed, 50 insertions, 6 deletions
diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c index 4fa7bcaf454e..f9d74d63be7c 100644 --- a/drivers/regulator/pbias-regulator.c +++ b/drivers/regulator/pbias-regulator.c @@ -45,6 +45,10 @@ struct pbias_regulator_data { int voltage; }; +struct pbias_of_data { + unsigned int offset; +}; + static const unsigned int pbias_volt_table[] = { 1800000, 3000000 @@ -102,8 +106,35 @@ static struct of_regulator_match pbias_matches[] = { }; #define PBIAS_NUM_REGS ARRAY_SIZE(pbias_matches) +/* Offset from SCM general area (and syscon) base */ + +static const struct pbias_of_data pbias_of_data_omap2 = { + .offset = 0x230, +}; + +static const struct pbias_of_data pbias_of_data_omap3 = { + .offset = 0x2b0, +}; + +static const struct pbias_of_data pbias_of_data_omap4 = { + .offset = 0x60, +}; + +static const struct pbias_of_data pbias_of_data_omap5 = { + .offset = 0x60, +}; + +static const struct pbias_of_data pbias_of_data_dra7 = { + .offset = 0xe00, +}; + static const struct of_device_id pbias_of_match[] = { { .compatible = "ti,pbias-omap", }, + { .compatible = "ti,pbias-omap2", .data = &pbias_of_data_omap2, }, + { .compatible = "ti,pbias-omap3", .data = &pbias_of_data_omap3, }, + { .compatible = "ti,pbias-omap4", .data = &pbias_of_data_omap4, }, + { .compatible = "ti,pbias-omap5", .data = &pbias_of_data_omap5, }, + { .compatible = "ti,pbias-dra7", .data = &pbias_of_data_dra7, }, {}, }; MODULE_DEVICE_TABLE(of, pbias_of_match); @@ -118,6 +149,9 @@ static int pbias_regulator_probe(struct platform_device *pdev) const struct pbias_reg_info *info; int ret = 0; int count, idx, data_idx = 0; + const struct of_device_id *match; + const struct pbias_of_data *data; + unsigned int offset; count = of_regulator_match(&pdev->dev, np, pbias_matches, PBIAS_NUM_REGS); @@ -133,6 +167,20 @@ static int pbias_regulator_probe(struct platform_device *pdev) if (IS_ERR(syscon)) return PTR_ERR(syscon); + match = of_match_device(of_match_ptr(pbias_of_match), &pdev->dev); + if (match && match->data) { + data = match->data; + offset = data->offset; + } else { + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + + offset = res->start; + dev_WARN(&pdev->dev, + "using legacy dt data for pbias offset\n"); + } + cfg.regmap = syscon; cfg.dev = &pdev->dev; @@ -145,10 +193,6 @@ static int pbias_regulator_probe(struct platform_device *pdev) if (!info) return -ENODEV; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -EINVAL; - drvdata[data_idx].syscon = syscon; drvdata[data_idx].info = info; drvdata[data_idx].desc.name = info->name; @@ -158,9 +202,9 @@ static int pbias_regulator_probe(struct platform_device *pdev) drvdata[data_idx].desc.volt_table = pbias_volt_table; drvdata[data_idx].desc.n_voltages = 2; drvdata[data_idx].desc.enable_time = info->enable_time; - drvdata[data_idx].desc.vsel_reg = res->start; + drvdata[data_idx].desc.vsel_reg = offset; drvdata[data_idx].desc.vsel_mask = info->vmode; - drvdata[data_idx].desc.enable_reg = res->start; + drvdata[data_idx].desc.enable_reg = offset; drvdata[data_idx].desc.enable_mask = info->enable_mask; drvdata[data_idx].desc.enable_val = info->enable; drvdata[data_idx].desc.disable_val = info->disable_val; |