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| author | Dong Aisheng <dong.aisheng@linaro.org> | 2012-09-05 10:57:15 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-17 15:27:31 +0200 |
| commit | baa64151aecccedbafae1bbc0c167c8b2a711752 (patch) | |
| tree | d911c782c77310848aa36fac6e32931458dcfc82 /arch/arm | |
| parent | df37e0c0931ceeb159c8e017445c6d4799b7f345 (diff) | |
| download | talos-op-linux-baa64151aecccedbafae1bbc0c167c8b2a711752.tar.gz talos-op-linux-baa64151aecccedbafae1bbc0c167c8b2a711752.zip | |
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>
Diffstat (limited to 'arch/arm')
| -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 |
3 files changed, 21 insertions, 32 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) |
