diff options
| author | Peichao Wang <peichao.wang@bitland.corp-partner.google.com> | 2018-09-19 10:55:12 +0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2018-09-26 01:00:03 +0000 |
| commit | cfab6f69b6c47154df97a8d81cb4ef31e6953945 (patch) | |
| tree | b68e4cbda199009158e8143bcacddc1a8d46ace8 /src/mainboard/google/octopus/variants/phaser/variant.c | |
| parent | 1f42a38e0fb9b4f080000cb7401a5939e68ca584 (diff) | |
mb/google/octopus: Close unused I2C bus 7 include SCL and SDA for Phaser
Since I2C bus 7 attached the touchscreen device however Phaser units
that haven't it. So for avoiding side effects, we need close I2C bus
7 SCL and SDA respectively.
BUG=none
TEST=according to sku_id (Phaser: 0x1, Phaser360: 0x2, Phaser360s: 0x3)
distinguish whether close these gpios.
Change-Id: I8ad17761f2a053dc329bbec0a0a3284d47289666
Signed-off-by: Peichao.Wang <peichao.wang@bitland.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/28669
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Jett Rink <jettrink@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/octopus/variants/phaser/variant.c')
| -rw-r--r-- | src/mainboard/google/octopus/variants/phaser/variant.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/phaser/variant.c b/src/mainboard/google/octopus/variants/phaser/variant.c index 1ead5e230c..f04d8585cc 100644 --- a/src/mainboard/google/octopus/variants/phaser/variant.c +++ b/src/mainboard/google/octopus/variants/phaser/variant.c @@ -22,6 +22,9 @@ #include <soc/gpio.h> #include <soc/pci_devs.h> #include <string.h> +#include <ec/google/chromeec/ec.h> + +#define SKU_UNKNOWN 0xFFFFFFFF extern struct chip_operations drivers_i2c_generic_ops; extern struct chip_operations drivers_i2c_hid_ops; @@ -29,6 +32,7 @@ extern struct chip_operations drivers_i2c_hid_ops; void variant_update_devtree(struct device *dev) { uint32_t bid; + uint32_t sku_id = SKU_UNKNOWN; struct device *touchscreen_i2c_host; struct device *child; const struct bus *children_bus; @@ -46,6 +50,16 @@ void variant_update_devtree(struct device *dev) if (touchscreen_i2c_host == NULL) return; + /* According to the sku id decide whether update touch + * screen device information: + * 1. sku id is 1 then dev->enabled = 0. + */ + google_chromeec_cbi_get_sku_id(&sku_id); + if (sku_id == 1) { + touchscreen_i2c_host->enabled = 0; + return; + } + children_bus = touchscreen_i2c_host->link_list; child = NULL; |