Re: [PATCH 18/18] i2c-cht-wc: Add device-properties for fusb302 integration

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On 08/06/2017 05:35 AM, Hans de Goede wrote:
Add device-properties to make the bq24292i controller connected to
the bus get its input-current-limit from the fusb302 Type-C port
controller which is used on boards with the cht-wc PMIC.

Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
  drivers/i2c/busses/Kconfig      | 5 +++++
  drivers/i2c/busses/i2c-cht-wc.c | 5 ++++-
  2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index f20b1f84013a..6de21a81b00b 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -197,6 +197,11 @@ config I2C_CHT_WC
  	  SMBus controller found in the Intel Cherry Trail Whiskey Cove PMIC
  	  found on some Intel Cherry Trail systems.
+ Note this controller is hooked up to a TI bq24292i charger-IC,
+	  combined with a FUSB302 Type-C port-controller as such it is advised
+	  to also select CONFIG_CHARGER_BQ24190=m and CONFIG_TYPEC_FUSB302=m
+	  (the fusb302 driver currently is in drivers/staging).
+

Just wondering - is this always the case ? What if someone builds a system with
different charger and port controller ICs ?

  config I2C_NFORCE2
  	tristate "Nvidia nForce2, nForce3 and nForce4"
  	depends on PCI
diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c
index ccf0785bcb75..08229fb12615 100644
--- a/drivers/i2c/busses/i2c-cht-wc.c
+++ b/drivers/i2c/busses/i2c-cht-wc.c
@@ -211,8 +211,11 @@ static const struct irq_chip cht_wc_i2c_irq_chip = {
  	.name			= "cht_wc_ext_chrg_irq_chip",
  };
+static const char * const bq24190_suppliers[] = { "fusb302-typec-source" };
+
  static const struct property_entry bq24190_props[] = {
-	PROPERTY_ENTRY_STRING("extcon-name", "cht_wcove_pwrsrc"),
+	PROPERTY_ENTRY_STRING_ARRAY("supplied-from", bq24190_suppliers),
+	PROPERTY_ENTRY_BOOL("input-current-limit-from-supplier"),
  	PROPERTY_ENTRY_BOOL("omit-battery-class"),
  	PROPERTY_ENTRY_BOOL("disable-reset"),
  	{ }


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