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OMAP3+: VC: make I2C config programmable with PMIC-specific settings

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Remove hard-coded I2C configuration in favor of settings that can be
configured from PMIC-specific values.  Currently only high-speed mode
and the master-code value are supported, since they were the only
fields currently used, but extending this is now trivial.

Thanks to Nishanth Menon <nm@ti.com> for reporting/fixing a sparse
problem and making omap_vc_i2c_init() static, as well as finding and
fixing a problem with the shift/mask of mcode.

Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Kevin Hilman
2011-03-30 16:36:30 -07:00
parent ce8ebe0dfb
commit f5395480f5
6 changed files with 66 additions and 7 deletions
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3
arch/arm/mach-omap2/vc44xx_data.c
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@@ -45,6 +45,9 @@ static const struct omap_vc_common omap4_vc_common = {
.cmd_ret_shift = OMAP4430_RET_SHIFT,
.cmd_off_shift = OMAP4430_OFF_SHIFT,
.cfg_channel_reg = OMAP4_PRM_VC_CFG_CHANNEL_OFFSET,
.i2c_cfg_reg = OMAP4_PRM_VC_CFG_I2C_MODE_OFFSET,
.i2c_cfg_hsen_mask = OMAP4430_HSMODEEN_MASK,
.i2c_mcode_mask = OMAP4430_HSMCODE_MASK,
};
/* VC instance data for each controllable voltage line */