- Add an i2c_slave_address field to the omap_vc_channel - use VC/VP read/modify/write helper instead of open-coding - remove smps_sa_shift, use __ffs(mask) for shift value Special thanks to Shweta Gulati <shweta.gulati@xxxxxx> for suggesting the use of __ffs(x) instead of ffs(x) - 1. Signed-off-by: Kevin Hilman <khilman@xxxxxx> --- arch/arm/mach-omap2/vc.c | 12 +++++++----- arch/arm/mach-omap2/vc.h | 8 +++++--- arch/arm/mach-omap2/vc3xxx_data.c | 2 -- arch/arm/mach-omap2/vc44xx_data.c | 3 --- 4 files changed, 12 insertions(+), 13 deletions(-) diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index 349b5b1..0824904 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -232,11 +232,13 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm) return; } - /* Set up the SMPS_SA(i2c slave address in VC */ - vc_val = voltdm->read(vc->common->smps_sa_reg); - vc_val &= ~vc->smps_sa_mask; - vc_val |= vdd->pmic_info->i2c_slave_addr << vc->smps_sa_shift; - voltdm->write(vc_val, vc->common->smps_sa_reg); + /* get PMIC/board specific settings */ + vc->i2c_slave_addr = vdd->pmic_info->i2c_slave_addr; + + /* Configure the i2c slave address for this VC */ + voltdm->rmw(vc->smps_sa_mask, + vc->i2c_slave_addr << __ffs(vc->smps_sa_mask), + vc->common->smps_sa_reg); /* Setup the VOLRA(pmic reg addr) in VC */ vc_val = voltdm->read(vc->common->smps_volra_reg); diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h index 553a5ac..ca8479e 100644 --- a/arch/arm/mach-omap2/vc.h +++ b/arch/arm/mach-omap2/vc.h @@ -57,20 +57,22 @@ struct omap_vc_common { /** * struct omap_vc_channel - VC per-instance data * @common: pointer to VC common data for this platform - * @smps_sa_mask: SA* bitmask in the PRM_VC_SMPS_SA register + * @smps_sa_mask: i2c slave address bitmask in the PRM_VC_SMPS_SA register * @smps_volra_mask: VOLRA* bitmask in the PRM_VC_VOL_RA register - * @smps_sa_shift: SA* field shift in the PRM_VC_SMPS_SA register * @smps_volra_shift: VOLRA* field shift in the PRM_VC_VOL_RA register * * XXX It is not necessary to have both a *_mask and a *_shift - * remove one */ struct omap_vc_channel { + /* channel state */ + u8 i2c_slave_addr; + + /* register access data */ const struct omap_vc_common *common; u32 smps_sa_mask; u32 smps_volra_mask; u8 cmdval_reg; - u8 smps_sa_shift; u8 smps_volra_shift; }; diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c index 6b67203..86be50c 100644 --- a/arch/arm/mach-omap2/vc3xxx_data.c +++ b/arch/arm/mach-omap2/vc3xxx_data.c @@ -47,7 +47,6 @@ static struct omap_vc_common omap3_vc_common = { struct omap_vc_channel omap3_vc_mpu = { .common = &omap3_vc_common, .cmdval_reg = OMAP3_PRM_VC_CMD_VAL_0_OFFSET, - .smps_sa_shift = OMAP3430_PRM_VC_SMPS_SA_SA0_SHIFT, .smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA0_MASK, .smps_volra_shift = OMAP3430_VOLRA0_SHIFT, .smps_volra_mask = OMAP3430_VOLRA0_MASK, @@ -56,7 +55,6 @@ struct omap_vc_channel omap3_vc_mpu = { struct omap_vc_channel omap3_vc_core = { .common = &omap3_vc_common, .cmdval_reg = OMAP3_PRM_VC_CMD_VAL_1_OFFSET, - .smps_sa_shift = OMAP3430_PRM_VC_SMPS_SA_SA1_SHIFT, .smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA1_MASK, .smps_volra_shift = OMAP3430_VOLRA1_SHIFT, .smps_volra_mask = OMAP3430_VOLRA1_MASK, diff --git a/arch/arm/mach-omap2/vc44xx_data.c b/arch/arm/mach-omap2/vc44xx_data.c index e3125a3..af922b4 100644 --- a/arch/arm/mach-omap2/vc44xx_data.c +++ b/arch/arm/mach-omap2/vc44xx_data.c @@ -49,7 +49,6 @@ static const struct omap_vc_common omap4_vc_common = { struct omap_vc_channel omap4_vc_mpu = { .common = &omap4_vc_common, .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_MPU_L_OFFSET, - .smps_sa_shift = OMAP4430_SA_VDD_MPU_L_PRM_VC_SMPS_SA_SHIFT, .smps_sa_mask = OMAP4430_SA_VDD_MPU_L_PRM_VC_SMPS_SA_MASK, .smps_volra_shift = OMAP4430_VOLRA_VDD_MPU_L_SHIFT, .smps_volra_mask = OMAP4430_VOLRA_VDD_MPU_L_MASK, @@ -58,7 +57,6 @@ struct omap_vc_channel omap4_vc_mpu = { struct omap_vc_channel omap4_vc_iva = { .common = &omap4_vc_common, .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_IVA_L_OFFSET, - .smps_sa_shift = OMAP4430_SA_VDD_IVA_L_PRM_VC_SMPS_SA_SHIFT, .smps_sa_mask = OMAP4430_SA_VDD_IVA_L_PRM_VC_SMPS_SA_MASK, .smps_volra_shift = OMAP4430_VOLRA_VDD_IVA_L_SHIFT, .smps_volra_mask = OMAP4430_VOLRA_VDD_IVA_L_MASK, @@ -67,7 +65,6 @@ struct omap_vc_channel omap4_vc_iva = { struct omap_vc_channel omap4_vc_core = { .common = &omap4_vc_common, .cmdval_reg = OMAP4_PRM_VC_VAL_CMD_VDD_CORE_L_OFFSET, - .smps_sa_shift = OMAP4430_SA_VDD_CORE_L_0_6_SHIFT, .smps_sa_mask = OMAP4430_SA_VDD_CORE_L_0_6_MASK, .smps_volra_shift = OMAP4430_VOLRA_VDD_CORE_L_SHIFT, .smps_volra_mask = OMAP4430_VOLRA_VDD_CORE_L_MASK, -- 1.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html