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| author | Samuel Holland <samuel@sholland.org> | 2021-10-08 08:17:20 +0300 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2021-10-12 11:50:56 +0300 |
| commit | 104950a7feae7926e40676f27cfbd279a43b4bc3 (patch) | |
| tree | ce45115b87c8d40491d8b1e3e44fcb1aaf050901 /include/axp_pmic.h | |
| parent | 4ab39e74b640799748dfdef49f099b416a5ae497 (diff) | |
| download | u-boot-104950a7feae7926e40676f27cfbd279a43b4bc3.tar.xz | |
i2c: Add a DM_I2C driver for the sun6i P2WI controller
This bus controller is used to communicate with an X-Powers AXP PMIC.
Currently, various drivers access PMIC registers through a platform-
specific non-DM "pmic_bus" interface, which depends on the legacy I2C
framework. In order to convert those drivers to use DM_PMIC, this bus
needs a DM_I2C driver.
Refactor the p2wi functions to take the base address as a parameter,
and implement both the existing interface (which is still needed in
SPL) and the DM_I2C interface on top of them.
The register for switching between I2C/P2WI/RSB mode is the same across
all PMIC variants. Move that to the common header, so it can be used by
both interface implementations.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Diffstat (limited to 'include/axp_pmic.h')
| -rw-r--r-- | include/axp_pmic.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/axp_pmic.h b/include/axp_pmic.h index 405044c3a3..0db3e143ed 100644 --- a/include/axp_pmic.h +++ b/include/axp_pmic.h @@ -6,6 +6,8 @@ */ #ifndef _AXP_PMIC_H_ +#include <stdbool.h> + #ifdef CONFIG_AXP152_POWER #include <axp152.h> #endif @@ -25,6 +27,10 @@ #include <axp818.h> #endif +#define AXP_PMIC_MODE_REG 0x3e +#define AXP_PMIC_MODE_I2C 0x00 +#define AXP_PMIC_MODE_P2WI 0x3e + int axp_set_dcdc1(unsigned int mvolt); int axp_set_dcdc2(unsigned int mvolt); int axp_set_dcdc3(unsigned int mvolt); |