ARM: imx: Drop imx_anatop_usb_chrg_detect_disable()

With commit b5bbe2235361 ("usb: phy: mxs: Disable external charger
detect in mxs_phy_hw_init()") in tree all of the necessary charger
setup is done by the USB PHY driver which covers all of the affected
i.MX6 SoCs.

NOTE: imx_anatop_usb_chrg_detect_disable() was also called for i.MX7D,
but looking at its datasheet it appears to have a different USB PHY IP
block, so executing i.MX6 charger disable configuration seems
unnecessary.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peter Chen <peter.chen@nxp.com>
Cc: linux-imx@nxp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/mach-imx/anatop.c b/arch/arm/mach-imx/anatop.c
index 777d8c2..8fb68c0 100644 (file)
--- a/arch/arm/mach-imx/anatop.c
+++ b/arch/arm/mach-imx/anatop.c
@@ -19,8 +19,6 @@
 #define ANADIG_REG_2P5         0x130
 #define ANADIG_REG_CORE                0x140
 #define ANADIG_ANA_MISC0       0x150
-#define ANADIG_USB1_CHRG_DETECT        0x1b0
-#define ANADIG_USB2_CHRG_DETECT        0x210
 #define ANADIG_DIGPROG         0x260
 #define ANADIG_DIGPROG_IMX6SL  0x280
 #define ANADIG_DIGPROG_IMX7D   0x800
@@ -33,8 +31,6 @@
 #define BM_ANADIG_ANA_MISC0_STOP_MODE_CONFIG   0x1000
 /* Below MISC0_DISCON_HIGH_SNVS is only for i.MX6SL */
 #define BM_ANADIG_ANA_MISC0_DISCON_HIGH_SNVS   0x2000
-#define BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B   0x80000
-#define BM_ANADIG_USB_CHRG_DETECT_EN_B         0x100000
 
 static struct regmap *anatop;
 
@@ -96,16 +92,6 @@ void imx_anatop_post_resume(void)
 
 }
 
-static void imx_anatop_usb_chrg_detect_disable(void)
-{
-       regmap_write(anatop, ANADIG_USB1_CHRG_DETECT,
-               BM_ANADIG_USB_CHRG_DETECT_EN_B
-               | BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
-       regmap_write(anatop, ANADIG_USB2_CHRG_DETECT,
-               BM_ANADIG_USB_CHRG_DETECT_EN_B |
-               BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
-}
-
 void __init imx_init_revision_from_anatop(void)
 {
        struct device_node *np;
@@ -171,10 +157,6 @@ void __init imx_init_revision_from_anatop(void)
 void __init imx_anatop_init(void)
 {
        anatop = syscon_regmap_lookup_by_compatible("fsl,imx6q-anatop");
-       if (IS_ERR(anatop)) {
+       if (IS_ERR(anatop))
                pr_err("%s: failed to find imx6q-anatop regmap!\n", __func__);
-               return;
-       }
-
-       imx_anatop_usb_chrg_detect_disable();
 }