diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0003-drivers-i2c-w83795-Add-option-to-use-auxiliary-SMBUS.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0003-drivers-i2c-w83795-Add-option-to-use-auxiliary-SMBUS.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0003-drivers-i2c-w83795-Add-option-to-use-auxiliary-SMBUS.patch b/resources/libreboot/patch/kgpe-d16/0003-drivers-i2c-w83795-Add-option-to-use-auxiliary-SMBUS.patch new file mode 100644 index 0000000..b984f28 --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0003-drivers-i2c-w83795-Add-option-to-use-auxiliary-SMBUS.patch @@ -0,0 +1,62 @@ +From 3e2be2d88101331eedb59c1459630b553c7cb660 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Sat, 17 Oct 2015 04:37:10 -0500 +Subject: [PATCH 003/139] drivers/i2c/w83795: Add option to use auxiliary SMBUS + controller + +Change-Id: I5a9b5eba992853b84b0cb6c3a1764edf42ac49b2 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/drivers/i2c/w83795/chip.h | 4 ++++ + src/drivers/i2c/w83795/w83795.c | 14 ++++++++++++++ + 2 files changed, 18 insertions(+) + +diff --git a/src/drivers/i2c/w83795/chip.h b/src/drivers/i2c/w83795/chip.h +index effe119..413ea87 100644 +--- a/src/drivers/i2c/w83795/chip.h ++++ b/src/drivers/i2c/w83795/chip.h +@@ -139,4 +139,8 @@ struct drivers_i2c_w83795_config { + uint8_t fan6_duty; /* % of full speed (0-100) */ + uint8_t fan7_duty; /* % of full speed (0-100) */ + uint8_t fan8_duty; /* % of full speed (0-100) */ ++ ++ uint8_t smbus_aux; /* 0 == device located on first SMBUS, ++ * 1 == device located on auxiliary SMBUS ++ */ + }; +diff --git a/src/drivers/i2c/w83795/w83795.c b/src/drivers/i2c/w83795/w83795.c +index cf0cf2f..453e0af 100644 +--- a/src/drivers/i2c/w83795/w83795.c ++++ b/src/drivers/i2c/w83795/w83795.c +@@ -141,7 +141,16 @@ static void w83795_init(struct device *dev, w83795_fan_mode_t mode, u8 dts_src) + uint8_t val; + uint16_t limit_value; + ++#if IS_ENABLED(CONFIG_SMBUS_HAS_AUX) ++ uint8_t smbus_aux_prev = smbus_switched_to_aux(); ++ smbus_switch_to_aux(config->smbus_aux); ++#endif ++ + if (smbus_read_byte(dev, 0x00) < 0) { ++#if IS_ENABLED(CONFIG_SMBUS_HAS_AUX) ++ /* Restore SMBUS channel setting */ ++ smbus_switch_to_aux(smbus_aux_prev); ++#endif + printk(BIOS_ERR, "W83795G/ADG Nuvoton H/W Monitor not found\n"); + return; + } +@@ -325,6 +334,11 @@ static void w83795_init(struct device *dev, w83795_fan_mode_t mode, u8 dts_src) + val = w83795_read(dev, W83795_REG_CONFIG); + val |= W83795_REG_CONFIG_START; + w83795_write(dev, W83795_REG_CONFIG, val); ++ ++#if IS_ENABLED(CONFIG_SMBUS_HAS_AUX) ++ /* Restore SMBUS channel setting */ ++ smbus_switch_to_aux(smbus_aux_prev); ++#endif + } + + static void w83795_hwm_init(struct device *dev) +-- +1.9.1 + |