From: Tero Kristo Date: Fri, 4 Apr 2014 12:52:01 +0000 (+0300) Subject: ARM: OMAP3+: PRM: add common APIs for prm_vp_check/clear_txdone X-Git-Tag: v4.1-rc1~45^2~3^2^2~30 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e9f1ddcdec54d32892a0a749de017a39c6c84beb;p=karo-tx-linux.git ARM: OMAP3+: PRM: add common APIs for prm_vp_check/clear_txdone PRM driver now only exports a generic API for clearing / checking VP txdone status. Signed-off-by: Tero Kristo --- diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h index 2a01a5885c61..4e390ec0ed85 100644 --- a/arch/arm/mach-omap2/prm.h +++ b/arch/arm/mach-omap2/prm.h @@ -147,6 +147,8 @@ struct prm_ll_data { u16 offset); void (*reset_system)(void); int (*clear_mod_irqs)(s16 module, u8 regs, u32 wkst_mask); + u32 (*vp_check_txdone)(u8 vp_id); + void (*vp_clear_txdone)(u8 vp_id); }; extern int prm_register(struct prm_ll_data *pld); @@ -164,6 +166,18 @@ void omap_prm_reset_system(void); void omap_prm_reconfigure_io_chain(void); int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask); +/* + * Voltage Processor (VP) identifiers + */ +#define OMAP3_VP_VDD_MPU_ID 0 +#define OMAP3_VP_VDD_CORE_ID 1 +#define OMAP4_VP_VDD_CORE_ID 0 +#define OMAP4_VP_VDD_IVA_ID 1 +#define OMAP4_VP_VDD_MPU_ID 2 + +u32 omap_prm_vp_check_txdone(u8 vp_id); +void omap_prm_vp_clear_txdone(u8 vp_id); + #endif diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index a4443344affe..2b478adc337d 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -96,7 +96,7 @@ static struct omap3_vp omap3_vp[] = { #define MAX_VP_ID ARRAY_SIZE(omap3_vp); -u32 omap3_prm_vp_check_txdone(u8 vp_id) +static u32 omap3_prm_vp_check_txdone(u8 vp_id) { struct omap3_vp *vp = &omap3_vp[vp_id]; u32 irqstatus; @@ -106,7 +106,7 @@ u32 omap3_prm_vp_check_txdone(u8 vp_id) return irqstatus & vp->tranxdone_status; } -void omap3_prm_vp_clear_txdone(u8 vp_id) +static void omap3_prm_vp_clear_txdone(u8 vp_id) { struct omap3_vp *vp = &omap3_vp[vp_id]; @@ -665,6 +665,8 @@ static struct prm_ll_data omap3xxx_prm_ll_data = { .is_hardreset_asserted = &omap2_prm_is_hardreset_asserted, .reset_system = &omap3xxx_prm_dpll3_reset, .clear_mod_irqs = &omap3xxx_prm_clear_mod_irqs, + .vp_check_txdone = &omap3_prm_vp_check_txdone, + .vp_clear_txdone = &omap3_prm_vp_clear_txdone, }; int __init omap3xxx_prm_init(void) diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h index 5a09a74e7f8f..55e4c898ba25 100644 --- a/arch/arm/mach-omap2/prm3xxx.h +++ b/arch/arm/mach-omap2/prm3xxx.h @@ -132,10 +132,6 @@ #ifndef __ASSEMBLER__ -/* OMAP3-specific VP functions */ -u32 omap3_prm_vp_check_txdone(u8 vp_id); -void omap3_prm_vp_clear_txdone(u8 vp_id); - /* * OMAP3 access functions for voltage controller (VC) and * voltage proccessor (VP) in the PRM. diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index a08a617a6c11..1af0137e8283 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -138,7 +138,7 @@ static struct omap4_vp omap4_vp[] = { }, }; -u32 omap4_prm_vp_check_txdone(u8 vp_id) +static u32 omap4_prm_vp_check_txdone(u8 vp_id) { struct omap4_vp *vp = &omap4_vp[vp_id]; u32 irqstatus; @@ -149,7 +149,7 @@ u32 omap4_prm_vp_check_txdone(u8 vp_id) return irqstatus & vp->tranxdone_status; } -void omap4_prm_vp_clear_txdone(u8 vp_id) +static void omap4_prm_vp_clear_txdone(u8 vp_id) { struct omap4_vp *vp = &omap4_vp[vp_id]; @@ -699,6 +699,8 @@ static struct prm_ll_data omap44xx_prm_ll_data = { .deassert_hardreset = omap4_prminst_deassert_hardreset, .is_hardreset_asserted = omap4_prminst_is_hardreset_asserted, .reset_system = omap4_prminst_global_warm_sw_reset, + .vp_check_txdone = omap4_prm_vp_check_txdone, + .vp_clear_txdone = omap4_prm_vp_clear_txdone, }; int __init omap44xx_prm_init(void) diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h index 714329565b90..a470185d9ede 100644 --- a/arch/arm/mach-omap2/prm44xx_54xx.h +++ b/arch/arm/mach-omap2/prm44xx_54xx.h @@ -26,10 +26,6 @@ /* Function prototypes */ #ifndef __ASSEMBLER__ -/* OMAP4/OMAP5-specific VP functions */ -u32 omap4_prm_vp_check_txdone(u8 vp_id); -void omap4_prm_vp_clear_txdone(u8 vp_id); - /* * OMAP4/OMAP5 access functions for voltage controller (VC) and * voltage proccessor (VP) in the PRM. diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 2c2e7ed1bc6c..79cee117f971 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -554,6 +554,40 @@ int omap_prm_clear_mod_irqs(s16 module, u8 regs, u32 wkst_mask) return prm_ll_data->clear_mod_irqs(module, regs, wkst_mask); } +/** + * omap_prm_vp_check_txdone - check voltage processor TX done status + * + * Checks if voltage processor transmission has been completed. + * Returns non-zero if a transmission has completed, 0 otherwise. + */ +u32 omap_prm_vp_check_txdone(u8 vp_id) +{ + if (!prm_ll_data->vp_check_txdone) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return 0; + } + + return prm_ll_data->vp_check_txdone(vp_id); +} + +/** + * omap_prm_vp_clear_txdone - clears voltage processor TX done status + * + * Clears the status bit for completed voltage processor transmission + * returned by prm_vp_check_txdone. + */ +void omap_prm_vp_clear_txdone(u8 vp_id) +{ + if (!prm_ll_data->vp_clear_txdone) { + WARN_ONCE(1, "prm: %s: no mapping function defined\n", + __func__); + return; + } + + prm_ll_data->vp_clear_txdone(vp_id); +} + /** * prm_register - register per-SoC low-level data with the PRM * @pld: low-level per-SoC OMAP PRM data & function pointers to register diff --git a/arch/arm/mach-omap2/vp.h b/arch/arm/mach-omap2/vp.h index 0fdf7080e4a6..7e0829682bd0 100644 --- a/arch/arm/mach-omap2/vp.h +++ b/arch/arm/mach-omap2/vp.h @@ -21,15 +21,6 @@ struct voltagedomain; -/* - * Voltage Processor (VP) identifiers - */ -#define OMAP3_VP_VDD_MPU_ID 0 -#define OMAP3_VP_VDD_CORE_ID 1 -#define OMAP4_VP_VDD_CORE_ID 0 -#define OMAP4_VP_VDD_IVA_ID 1 -#define OMAP4_VP_VDD_MPU_ID 2 - /* XXX document */ #define VP_IDLE_TIMEOUT 200 #define VP_TRANXDONE_TIMEOUT 300 diff --git a/arch/arm/mach-omap2/vp3xxx_data.c b/arch/arm/mach-omap2/vp3xxx_data.c index 1914e026245e..b0590fe6ab01 100644 --- a/arch/arm/mach-omap2/vp3xxx_data.c +++ b/arch/arm/mach-omap2/vp3xxx_data.c @@ -28,8 +28,8 @@ #include "prm2xxx_3xxx.h" static const struct omap_vp_ops omap3_vp_ops = { - .check_txdone = omap3_prm_vp_check_txdone, - .clear_txdone = omap3_prm_vp_clear_txdone, + .check_txdone = omap_prm_vp_check_txdone, + .clear_txdone = omap_prm_vp_clear_txdone, }; /* diff --git a/arch/arm/mach-omap2/vp44xx_data.c b/arch/arm/mach-omap2/vp44xx_data.c index e62f6b018beb..2448bb9a8716 100644 --- a/arch/arm/mach-omap2/vp44xx_data.c +++ b/arch/arm/mach-omap2/vp44xx_data.c @@ -28,8 +28,8 @@ #include "vp.h" static const struct omap_vp_ops omap4_vp_ops = { - .check_txdone = omap4_prm_vp_check_txdone, - .clear_txdone = omap4_prm_vp_clear_txdone, + .check_txdone = omap_prm_vp_check_txdone, + .clear_txdone = omap_prm_vp_clear_txdone, }; /*