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BD99955: Support Pull-up port non-standard BC1.2 chargers

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Some chargers with valid VBUS advertise as Pull-up ports. Hence,
added code to support these kind of chargers as non-standard
BC1.2 chargers.

BUG=chrome-os-partner:57163
BRANCH=none
TEST=Manually tested on reef. Used a Pull-up port non-standard
     BC1.2 charger and observed it can ramp to its maximum
     current ratings.

Change-Id: I33c4c3a64e9c7176c909a48f6fbc49e04d529541
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/385239
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Rachel Nancollas <rachelsn@google.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
This commit is contained in:
Vijay Hiremath
2016-09-13 23:10:18 -07:00
committed by chrome-bot
parent f2dba9d779
commit 258bc48bac
2 changed files with 23 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
driver/charger/bd99955.c
View File

@@ -198,11 +198,11 @@ static int bd99955_get_bc12_device_type(enum bd99955_charge_port port)
return CHARGE_SUPPLIER_BC12_DCP;
case BD99955_TYPE_SDP:
return CHARGE_SUPPLIER_BC12_SDP;
case BD99955_TYPE_PUP_PORT:
case BD99955_TYPE_OTHER:
return CHARGE_SUPPLIER_OTHER;
case BD99955_TYPE_VBUS_OPEN:
case BD99955_TYPE_PUP_PORT:
case BD99955_TYPE_OPEN_PORT:
case BD99955_TYPE_VBUS_OPEN:
default:
return CHARGE_SUPPLIER_NONE;
}
@@ -419,12 +419,11 @@ int charger_get_option(int *option)
int rv;
int reg;
rv = ch_raw_read16(BD99955_CMD_CHGOP_SET1, &reg,
rv = ch_raw_read16(BD99955_CMD_CHGOP_SET1, option,
BD99955_EXTENDED_COMMAND);
if (rv)
return rv;
*option = reg;
rv = ch_raw_read16(BD99955_CMD_CHGOP_SET2, &reg,
BD99955_EXTENDED_COMMAND);
if (rv)

32
driver/charger/bd99955.h
View File

@@ -177,23 +177,31 @@ enum bd99955_charge_port {
#define BD99955_CMD_UCD_STATUS_CHGPORT0 (1 << 12)
#define BD99955_CMD_UCD_STATUS_PUPDET (1 << 11)
#define BD99955_CMD_UCD_STATUS_CHGDET (1 << 6)
#define BD99955_TYPE_VBUS_OPEN 0
#define BD99955_TYPE_SDP BD99955_CMD_UCD_STATUS_CHGPORT0
#define BD99955_TYPE_CDP (BD99955_CMD_UCD_STATUS_CHGDET | \
BD99955_CMD_UCD_STATUS_CHGPORT1)
#define BD99955_TYPE_OTHER (BD99955_CMD_UCD_STATUS_CHGDET | \
#define BD99955_TYPE_MASK (BD99955_CMD_UCD_STATUS_DCDFAIL | \
BD99955_CMD_UCD_STATUS_CHGPORT1 | \
BD99955_CMD_UCD_STATUS_CHGPORT0 | \
BD99955_CMD_UCD_STATUS_DCDFAIL)
#define BD99955_TYPE_DCP (BD99955_CMD_UCD_STATUS_CHGDET | \
BD99955_CMD_UCD_STATUS_PUPDET | \
BD99955_CMD_UCD_STATUS_CHGDET)
/* BC1.2 chargers */
#define BD99955_TYPE_CDP (BD99955_CMD_UCD_STATUS_CHGPORT1 | \
BD99955_CMD_UCD_STATUS_CHGDET)
#define BD99955_TYPE_DCP (BD99955_CMD_UCD_STATUS_CHGPORT1 | \
BD99955_CMD_UCD_STATUS_CHGPORT0 | \
BD99955_CMD_UCD_STATUS_CHGPORT1)
#define BD99955_TYPE_PUP_PORT (BD99955_CMD_UCD_STATUS_PUPDET | \
BD99955_CMD_UCD_STATUS_DCDFAIL | \
BD99955_CMD_UCD_STATUS_CHGPORT0)
BD99955_CMD_UCD_STATUS_CHGDET)
#define BD99955_TYPE_SDP (BD99955_CMD_UCD_STATUS_CHGPORT0)
/* non-standard BC1.2 chargers */
#define BD99955_TYPE_OTHER (BD99955_CMD_UCD_STATUS_DCDFAIL | \
BD99955_CMD_UCD_STATUS_CHGPORT1 | \
BD99955_CMD_UCD_STATUS_CHGPORT0 | \
BD99955_CMD_UCD_STATUS_CHGDET)
#define BD99955_TYPE_PUP_PORT (BD99955_CMD_UCD_STATUS_DCDFAIL | \
BD99955_CMD_UCD_STATUS_CHGPORT0 | \
BD99955_CMD_UCD_STATUS_PUPDET)
/* Open ports */
#define BD99955_TYPE_OPEN_PORT (BD99955_CMD_UCD_STATUS_DCDFAIL | \
BD99955_CMD_UCD_STATUS_CHGPORT0)
#define BD99955_TYPE_MASK 0xB840
#define BD99955_TYPE_VBUS_OPEN 0
#define BD99955_CMD_VCC_IDD_STATUS 0x2A
#define BD99955_CMD_VCC_UCD_FCTRL_SET 0x2B