From 261afe62f30f0a259505b14ec1afcfb6fb1d781a Mon Sep 17 00:00:00 2001 From: Scott Collyer Date: Fri, 16 Mar 2018 09:44:32 -0700 Subject: ppc: Add driver for NX20P3483 The NX20P3483 is a USB PD and Type C high voltage sink/source combo switch. This CL adds support for this PPC variant. Unlike the TI SN5S330, the NX20P3483 does not support VCONN and does not need to be informed of CC polarity by the TCPM. To account for these differences, 2 new PPC config options are added and the driver for the TI SN5S330 was modified to include these new options. The SNK/SRC switch mode for the NX20P3483 is controlled by 2 GPIO signals which may be connected the EC or directly to the TCPC. To handle both cases, the ppc_chips structure was modified with a flags, snk_gpio, and src_gpio elements. BUG=b:74206647 BRANCH=none TEST=make -j buildall and verified there are no build errors. Change-Id: Ic4415ab7571b80e7661ea673434eaf4cf1f1fd2d Signed-off-by: Scott Collyer Reviewed-on: https://chromium-review.googlesource.com/966926 Commit-Ready: Scott Collyer Tested-by: Scott Collyer Reviewed-by: Aseda Aboagye Reviewed-by: Furquan Shaikh --- common/usbc_ppc.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'common/usbc_ppc.c') diff --git a/common/usbc_ppc.c b/common/usbc_ppc.c index 6ff79a17bf..7011309cf1 100644 --- a/common/usbc_ppc.c +++ b/common/usbc_ppc.c @@ -42,6 +42,7 @@ int ppc_is_sourcing_vbus(int port) return ppc_chips[port].drv->is_sourcing_vbus(port); } +#ifdef CONFIG_USBC_PPC_POLARITY int ppc_set_polarity(int port, int polarity) { if ((port < 0) || (port >= ppc_cnt)) @@ -49,6 +50,7 @@ int ppc_set_polarity(int port, int polarity) return ppc_chips[port].drv->set_polarity(port, polarity); } +#endif int ppc_set_vbus_source_current_limit(int port, enum tcpc_rp_value rp) { @@ -66,6 +68,7 @@ int ppc_discharge_vbus(int port, int enable) return ppc_chips[port].drv->discharge_vbus(port, enable); } +#ifdef CONFIG_USBC_PPC_VCONN int ppc_set_vconn(int port, int enable) { if ((port < 0) || (port >= ppc_cnt)) @@ -73,6 +76,7 @@ int ppc_set_vconn(int port, int enable) return ppc_chips[port].drv->set_vconn(port, enable); } +#endif int ppc_vbus_sink_enable(int port, int enable) { -- cgit v1.2.1