diff options
author | Dong Aisheng <dong.aisheng@linaro.org> | 2012-09-05 06:57:15 +0400 |
---|---|---|
committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-17 17:27:31 +0400 |
commit | baa64151aecccedbafae1bbc0c167c8b2a711752 (patch) | |
tree | d911c782c77310848aa36fac6e32931458dcfc82 | |
parent | df37e0c0931ceeb159c8e017445c6d4799b7f345 (diff) | |
download | linux-baa64151aecccedbafae1bbc0c167c8b2a711752.tar.xz |
regulator: anatop-regulator: Convert to use syscon to access anatop register
Using syscon to access anatop register.
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
-rw-r--r-- | arch/arm/boot/dts/imx6q.dtsi | 4 | ||||
-rw-r--r-- | arch/arm/mach-imx/Kconfig | 2 | ||||
-rw-r--r-- | arch/arm/mach-imx/mach-imx6q.c | 47 | ||||
-rw-r--r-- | drivers/regulator/Kconfig | 2 | ||||
-rw-r--r-- | drivers/regulator/anatop-regulator.c | 31 |
5 files changed, 43 insertions, 43 deletions
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index bea21bc1aadd..52ed4d1ff4ed 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -378,8 +378,8 @@ interrupts = <0 87 0x04 0 88 0x04>; }; - anatop@020c8000 { - compatible = "fsl,imx6q-anatop"; + anatop: anatop@020c8000 { + compatible = "fsl,imx6q-anatop", "syscon", "simple-bus"; reg = <0x020c8000 0x1000>; interrupts = <0 49 0x04 0 54 0x04 0 127 0x04>; diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index afd542ad6f97..7bba253fd2bb 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -839,7 +839,7 @@ config SOC_IMX6Q select HAVE_IMX_MMDC select HAVE_IMX_SRC select HAVE_SMP - select MFD_ANATOP + select MFD_SYSCON select PINCTRL select PINCTRL_IMX6Q diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 5ec0608f2a76..8d7c14140744 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -24,8 +24,9 @@ #include <linux/of_platform.h> #include <linux/pinctrl/machine.h> #include <linux/phy.h> +#include <linux/regmap.h> #include <linux/micrel_phy.h> -#include <linux/mfd/anatop.h> +#include <linux/mfd/syscon.h> #include <asm/cpuidle.h> #include <asm/smp_twd.h> #include <asm/hardware/cache-l2x0.h> @@ -120,20 +121,7 @@ static void __init imx6q_sabrelite_init(void) static void __init imx6q_usb_init(void) { - struct device_node *np; - struct platform_device *pdev = NULL; - struct anatop *adata = NULL; - - np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop"); - if (np) - pdev = of_find_device_by_node(np); - if (pdev) - adata = platform_get_drvdata(pdev); - if (!adata) { - if (np) - of_node_put(np); - return; - } + struct regmap *anatop; #define HW_ANADIG_USB1_CHRG_DETECT 0x000001b0 #define HW_ANADIG_USB2_CHRG_DETECT 0x00000210 @@ -141,20 +129,21 @@ static void __init imx6q_usb_init(void) #define BM_ANADIG_USB_CHRG_DETECT_EN_B 0x00100000 #define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B 0x00080000 - /* - * The external charger detector needs to be disabled, - * or the signal at DP will be poor - */ - anatop_write_reg(adata, HW_ANADIG_USB1_CHRG_DETECT, - BM_ANADIG_USB_CHRG_DETECT_EN_B - | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B, - ~0); - anatop_write_reg(adata, HW_ANADIG_USB2_CHRG_DETECT, - BM_ANADIG_USB_CHRG_DETECT_EN_B | - BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B, - ~0); - - of_node_put(np); + anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop"); + if (!IS_ERR(anatop)) { + /* + * The external charger detector needs to be disabled, + * or the signal at DP will be poor + */ + regmap_write(anatop, HW_ANADIG_USB1_CHRG_DETECT, + BM_ANADIG_USB_CHRG_DETECT_EN_B + | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); + regmap_write(anatop, HW_ANADIG_USB2_CHRG_DETECT, + BM_ANADIG_USB_CHRG_DETECT_EN_B | + BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B); + } else { + pr_warn("failed to find fsl,imx6q-anatop regmap\n"); + } } static void __init imx6q_init_machine(void) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 4e932cc695e9..2ae1d97fac1e 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -112,7 +112,7 @@ config REGULATOR_DA9052 config REGULATOR_ANATOP tristate "Freescale i.MX on-chip ANATOP LDO regulators" - depends on MFD_ANATOP + depends on MFD_SYSCON help Say y here to support Freescale i.MX on-chip ANATOP LDOs regulators. It is recommended that this option be diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index e9c2085f9dfb..596535dd917a 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -21,19 +21,20 @@ #include <linux/slab.h> #include <linux/device.h> #include <linux/module.h> +#include <linux/mfd/syscon.h> #include <linux/err.h> #include <linux/io.h> #include <linux/platform_device.h> #include <linux/of.h> #include <linux/of_address.h> -#include <linux/mfd/anatop.h> +#include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/of_regulator.h> struct anatop_regulator { const char *name; u32 control_reg; - struct anatop *mfd; + struct regmap *anatop; int vol_bit_shift; int vol_bit_width; int min_bit_val; @@ -43,7 +44,8 @@ struct anatop_regulator { struct regulator_init_data *initdata; }; -static int anatop_set_voltage_sel(struct regulator_dev *reg, unsigned selector) +static int anatop_regmap_set_voltage_sel(struct regulator_dev *reg, + unsigned selector) { struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg); u32 val, mask; @@ -56,12 +58,13 @@ static int anatop_set_voltage_sel(struct regulator_dev *reg, unsigned selector) mask = ((1 << anatop_reg->vol_bit_width) - 1) << anatop_reg->vol_bit_shift; val <<= anatop_reg->vol_bit_shift; - anatop_write_reg(anatop_reg->mfd, anatop_reg->control_reg, val, mask); + regmap_update_bits(anatop_reg->anatop, anatop_reg->control_reg, + mask, val); return 0; } -static int anatop_get_voltage_sel(struct regulator_dev *reg) +static int anatop_regmap_get_voltage_sel(struct regulator_dev *reg) { struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg); u32 val; @@ -69,7 +72,7 @@ static int anatop_get_voltage_sel(struct regulator_dev *reg) if (!anatop_reg->control_reg) return -ENOTSUPP; - val = anatop_read_reg(anatop_reg->mfd, anatop_reg->control_reg); + regmap_read(anatop_reg->anatop, anatop_reg->control_reg, &val); val = (val & ((1 << anatop_reg->vol_bit_width) - 1)) >> anatop_reg->vol_bit_shift; @@ -77,8 +80,8 @@ static int anatop_get_voltage_sel(struct regulator_dev *reg) } static struct regulator_ops anatop_rops = { - .set_voltage_sel = anatop_set_voltage_sel, - .get_voltage_sel = anatop_get_voltage_sel, + .set_voltage_sel = anatop_regmap_set_voltage_sel, + .get_voltage_sel = anatop_regmap_get_voltage_sel, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, }; @@ -87,11 +90,11 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; + struct device_node *anatop_np; struct regulator_desc *rdesc; struct regulator_dev *rdev; struct anatop_regulator *sreg; struct regulator_init_data *initdata; - struct anatop *anatopmfd = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; int ret = 0; @@ -108,7 +111,15 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev) rdesc->ops = &anatop_rops; rdesc->type = REGULATOR_VOLTAGE; rdesc->owner = THIS_MODULE; - sreg->mfd = anatopmfd; + + anatop_np = of_get_parent(np); + if (!anatop_np) + return -ENODEV; + sreg->anatop = syscon_node_to_regmap(anatop_np); + of_node_put(anatop_np); + if (IS_ERR(sreg->anatop)) + return PTR_ERR(sreg->anatop); + ret = of_property_read_u32(np, "anatop-reg-offset", &sreg->control_reg); if (ret) { |