From: Li Jun <jun.li@nxp.com>
To: gregkh@linuxfoundation.org, robh+dt@kernel.org,
heikki.krogerus@linux.intel.com, linux@roeck-us.net
Cc: a.hajda@samsung.com, mark.rutland@arm.com, jun.li@nxp.com,
yueyao@google.com, peter.chen@nxp.com, garsilva@embeddedor.com,
o_leveque@orange.fr, shufan_lee@richtek.com,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-imx@nxp.com
Subject: [PATCH v2 08/12] staging: typec: tcpci: keep the uncontact cc line open
Date: Mon, 26 Feb 2018 19:49:15 +0800 [thread overview]
Message-ID: <1519645759-12701-9-git-send-email-jun.li@nxp.com> (raw)
In-Reply-To: <1519645759-12701-1-git-send-email-jun.li@nxp.com>
While set polarity, we should keep the disconnected cc line to be
open when attached.
Signed-off-by: Li Jun <jun.li@nxp.com>
---
Change for v2:
- Set the uncontact cc line to be open when set polarity, this way,
we don't need change set_cc api.
drivers/staging/typec/tcpci.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index 530a5d7..7145771 100644
--- a/drivers/staging/typec/tcpci.c
+++ b/drivers/staging/typec/tcpci.c
@@ -184,6 +184,7 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc,
enum typec_cc_polarity polarity)
{
struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
+ unsigned int reg;
int ret;
ret = regmap_write(tcpci->regmap, TCPC_TCPC_CTRL,
@@ -192,6 +193,20 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc,
if (ret < 0)
return ret;
+ ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, ®);
+ if (ret < 0)
+ return ret;
+
+ if (polarity == TYPEC_POLARITY_CC2)
+ ret = TCPC_ROLE_CTRL_CC1_SHIFT;
+ else
+ ret = TCPC_ROLE_CTRL_CC2_SHIFT;
+ reg |= TCPC_ROLE_CTRL_CC_OPEN << ret;
+ reg &= ~TCPC_ROLE_CTRL_DRP;
+ ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg);
+ if (ret < 0)
+ return ret;
+
return 0;
}
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Jun Li <jun.li@nxp.com>
To: gregkh@linuxfoundation.org, robh+dt@kernel.org,
heikki.krogerus@linux.intel.com, linux@roeck-us.net
Cc: a.hajda@samsung.com, mark.rutland@arm.com, jun.li@nxp.com,
yueyao@google.com, peter.chen@nxp.com, garsilva@embeddedor.com,
o_leveque@orange.fr, shufan_lee@richtek.com,
linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
linux-imx@nxp.com
Subject: [v2,08/12] staging: typec: tcpci: keep the uncontact cc line open
Date: Mon, 26 Feb 2018 19:49:15 +0800 [thread overview]
Message-ID: <1519645759-12701-9-git-send-email-jun.li@nxp.com> (raw)
While set polarity, we should keep the disconnected cc line to be
open when attached.
Signed-off-by: Li Jun <jun.li@nxp.com>
---
Change for v2:
- Set the uncontact cc line to be open when set polarity, this way,
we don't need change set_cc api.
drivers/staging/typec/tcpci.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index 530a5d7..7145771 100644
--- a/drivers/staging/typec/tcpci.c
+++ b/drivers/staging/typec/tcpci.c
@@ -184,6 +184,7 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc,
enum typec_cc_polarity polarity)
{
struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
+ unsigned int reg;
int ret;
ret = regmap_write(tcpci->regmap, TCPC_TCPC_CTRL,
@@ -192,6 +193,20 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc,
if (ret < 0)
return ret;
+ ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, ®);
+ if (ret < 0)
+ return ret;
+
+ if (polarity == TYPEC_POLARITY_CC2)
+ ret = TCPC_ROLE_CTRL_CC1_SHIFT;
+ else
+ ret = TCPC_ROLE_CTRL_CC2_SHIFT;
+ reg |= TCPC_ROLE_CTRL_CC_OPEN << ret;
+ reg &= ~TCPC_ROLE_CTRL_DRP;
+ ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg);
+ if (ret < 0)
+ return ret;
+
return 0;
}
next prev parent reply other threads:[~2018-02-26 12:05 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 11:49 [PATCH v2 00/12] staging: typec: tcpci: move out of staging Li Jun
2018-02-26 11:49 ` [PATCH v2 01/12] usb: typec: add API to get port type and preferred role Li Jun
2018-02-26 11:49 ` [v2,01/12] " Jun Li
2018-02-26 13:19 ` [PATCH v2 01/12] " Heikki Krogerus
2018-02-26 13:19 ` [v2,01/12] " Heikki Krogerus
2018-03-05 7:54 ` [PATCH v2 01/12] " Jun Li
2018-03-05 7:54 ` [v2,01/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 02/12] usb: typec: add API to get sink and source config Li Jun
2018-02-26 11:49 ` [v2,02/12] " Jun Li
2018-02-26 13:32 ` [PATCH v2 02/12] " Heikki Krogerus
2018-02-26 13:32 ` [v2,02/12] " Heikki Krogerus
2018-03-05 8:40 ` [PATCH v2 02/12] " Jun Li
2018-03-05 8:40 ` [v2,02/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 03/12] staging: typec: tcpci: support port config passed via dt Li Jun
2018-02-26 11:49 ` [v2,03/12] " Jun Li
2018-02-26 14:06 ` [PATCH v2 03/12] " Heikki Krogerus
2018-02-26 14:06 ` [v2,03/12] " Heikki Krogerus
2018-02-26 14:30 ` [PATCH v2 03/12] " Jun Li
2018-02-26 14:30 ` [v2,03/12] " Jun Li
2018-02-27 11:03 ` [PATCH v2 03/12] " Heikki Krogerus
2018-02-27 11:03 ` [v2,03/12] " Heikki Krogerus
2018-03-05 8:53 ` [PATCH v2 03/12] " Jun Li
2018-03-05 8:53 ` [v2,03/12] " Jun Li
2018-03-05 9:53 ` [PATCH v2 03/12] " Heikki Krogerus
2018-03-05 9:53 ` [v2,03/12] " Heikki Krogerus
2018-03-05 10:35 ` [PATCH v2 03/12] " Jun Li
2018-03-05 10:35 ` [v2,03/12] " Jun Li
2018-03-05 11:30 ` [PATCH v2 03/12] " Heikki Krogerus
2018-03-05 11:30 ` [v2,03/12] " Heikki Krogerus
2018-03-05 12:38 ` [PATCH v2 03/12] " Jun Li
2018-03-05 12:38 ` [v2,03/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 04/12] staging: typec: tcpci: register port before request irq Li Jun
2018-02-26 11:49 ` [v2,04/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 05/12] staging: typec: tcpci: enable vbus detection Li Jun
2018-02-26 11:49 ` [v2,05/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 06/12] typec: tcpm: add starting value for drp toggling Li Jun
2018-02-26 11:49 ` [v2,06/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 07/12] staging: typec: tcpci: correct " Li Jun
2018-02-26 11:49 ` [v2,07/12] " Jun Li
2018-02-26 11:49 ` Li Jun [this message]
2018-02-26 11:49 ` [v2,08/12] staging: typec: tcpci: keep the uncontact cc line open Jun Li
2018-02-26 11:49 ` [PATCH v2 09/12] staging: typec: tcpci: Only touch target bit when enable vconn Li Jun
2018-02-26 11:49 ` [v2,09/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 10/12] dt-bindings: connector: add properties for typec power delivery Li Jun
2018-02-26 11:49 ` [v2,10/12] " Jun Li
2018-02-27 8:41 ` [PATCH v2 10/12] " Andrzej Hajda
2018-02-27 8:41 ` [v2,10/12] " Andrzej Hajda
2018-03-02 22:38 ` [PATCH v2 10/12] " Rob Herring
2018-03-02 22:38 ` [v2,10/12] " Rob Herring
2018-03-05 7:52 ` [PATCH v2 10/12] " Jun Li
2018-03-05 7:52 ` [v2,10/12] " Jun Li
2018-03-05 12:25 ` [PATCH v2 10/12] " Jun Li
2018-03-05 12:25 ` [v2,10/12] " Jun Li
2018-03-05 7:00 ` [PATCH v2 10/12] " Jun Li
2018-03-05 7:00 ` [v2,10/12] " Jun Li
2018-03-05 9:59 ` [PATCH v2 10/12] " Andrzej Hajda
2018-03-05 9:59 ` [v2,10/12] " Andrzej Hajda
2018-03-06 9:38 ` [PATCH v2 10/12] " Jun Li
2018-03-06 9:38 ` [v2,10/12] " Jun Li
2018-03-06 11:54 ` [PATCH v2 10/12] " Andrzej Hajda
2018-03-06 11:54 ` [v2,10/12] " Andrzej Hajda
2018-03-06 12:02 ` [PATCH v2 10/12] " Heikki Krogerus
2018-03-06 12:02 ` [v2,10/12] " Heikki Krogerus
2018-03-08 1:41 ` [PATCH v2 10/12] " Jun Li
2018-03-08 1:41 ` [v2,10/12] " Jun Li
2018-03-09 7:34 ` [PATCH v2 10/12] " Heikki Krogerus
2018-03-09 7:34 ` [v2,10/12] " Heikki Krogerus
2018-03-02 22:29 ` [PATCH v2 10/12] " Rob Herring
2018-03-02 22:29 ` [v2,10/12] " Rob Herring
2018-03-05 7:07 ` [PATCH v2 10/12] " Jun Li
2018-03-05 7:07 ` [v2,10/12] " Jun Li
2018-02-26 11:49 ` [PATCH v2 11/12] dt-bindings: usb: add documentation for typec port controller(TCPCI) Li Jun
2018-02-26 11:49 ` [v2,11/12] " Jun Li
2018-03-02 22:56 ` [PATCH v2 11/12] " Rob Herring
2018-03-02 22:56 ` [v2,11/12] " Rob Herring
2018-02-26 11:49 ` [PATCH v2 12/12] staging: typec: tcpci: move tcpci driver out of staging Li Jun
2018-02-26 11:49 ` [v2,12/12] " Jun Li
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