linux-kernel - [PATCH v2 03/14] staging: typec: fusb302: Set max supply voltage to 5V

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Message-Id: <20170815200502.17339-4-hdegoede@redhat.com>
Date:   Tue, 15 Aug 2017 22:04:51 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Wolfram Sang <wsa@...-dreams.de>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sebastian Reichel <sre@...nel.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Liam Breck <liam@...workimprov.net>,
        Tony Lindgren <tony@...mide.com>, linux-i2c@...r.kernel.org,
        linux-pm@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        "Yueyao (Nathan) Zhu" <yueyao@...gle.com>
Subject: [PATCH v2 03/14] staging: typec: fusb302: Set max supply voltage to 5V

Anything higher then 5V may damage hardware not capable of it, so
the only sane default here is 5V. If a board is able to handle a
higher voltage that should come from board specific data such as
device-tree and not be hard coded into the fusb302 code.

Cc: "Yueyao (Nathan) Zhu" <yueyao@...gle.com>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/staging/typec/fusb302/fusb302.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/typec/fusb302/fusb302.c b/drivers/staging/typec/fusb302/fusb302.c
index 03a3809..6baed06 100644
--- a/drivers/staging/typec/fusb302/fusb302.c
+++ b/drivers/staging/typec/fusb302/fusb302.c
@@ -1187,9 +1187,9 @@ static const struct tcpc_config fusb302_tcpc_config = {
 	.nr_src_pdo = ARRAY_SIZE(src_pdo),
 	.snk_pdo = snk_pdo,
 	.nr_snk_pdo = ARRAY_SIZE(snk_pdo),
-	.max_snk_mv = 9000,
+	.max_snk_mv = 5000,
 	.max_snk_ma = 3000,
-	.max_snk_mw = 27000,
+	.max_snk_mw = 15000,
 	.operating_snk_mw = 2500,
 	.type = TYPEC_PORT_DRP,
 	.default_role = TYPEC_SINK,
-- 
2.9.4