xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

phy: usb: Add support for wake and USB low power mode for 7211 S2/S5

Browse Source 
Add support for 7211 USB wake. Disable all possible 7211 USB logic
for S2/S5 if USB wake is not enabled.

On the 7211, the XHCI wake signal was not connected properly and
only goes to the USB1_USB1_CTRL_TP_DIAG1 diagonstic register.
The workaround is to have VPU code running that polls for the
proper bit in the DIAG register and to wake the system when
the bit is asserted.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Al Cooper
2020-01-03 13:18:11 -05:00
committed by Kishon Vijay Abraham I
parent 5dfe1cec58
commit b0c0b66c0b
4 changed files with 105 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/phy/broadcom/phy-brcm-usb-init.h
View File

@@ -46,8 +46,6 @@ struct brcm_usb_init_ops {
void (*uninit_xhci)(struct brcm_usb_init_params *params);
int (*get_dual_select)(struct brcm_usb_init_params *params);
void (*set_dual_select)(struct brcm_usb_init_params *params, int mode);
void (*wake_enable)(struct brcm_usb_init_params *params,
int enable);
};
struct brcm_usb_init_params {
@@ -62,6 +60,8 @@ struct brcm_usb_init_params {
const u32 *usb_reg_bits_map;
const struct brcm_usb_init_ops *ops;
struct regmap *syscon_piarbctl;
bool wake_enabled;
bool suspend_with_clocks;
};
void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
@@ -145,13 +145,6 @@ static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini)
ini->ops->uninit_xhci(ini);
}
static inline void brcm_usb_wake_enable(struct brcm_usb_init_params *ini,
int enable)
{
if (ini->ops->wake_enable)
ini->ops->wake_enable(ini, enable);
}
static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini)
{
if (ini->ops->get_dual_select)