diff options
Diffstat (limited to 'drivers/thermal/renesas/rcar_gen3_thermal.c')
| -rw-r--r-- | drivers/thermal/renesas/rcar_gen3_thermal.c | 107 |
1 files changed, 49 insertions, 58 deletions
diff --git a/drivers/thermal/renesas/rcar_gen3_thermal.c b/drivers/thermal/renesas/rcar_gen3_thermal.c index 1ec169aeacfc..24a702ee4c1f 100644 --- a/drivers/thermal/renesas/rcar_gen3_thermal.c +++ b/drivers/thermal/renesas/rcar_gen3_thermal.c @@ -21,11 +21,11 @@ /* Register offsets */ #define REG_GEN3_IRQSTR 0x04 #define REG_GEN3_IRQMSK 0x08 -#define REG_GEN3_IRQCTL 0x0C +#define REG_GEN3_IRQCTL 0x0c #define REG_GEN3_IRQEN 0x10 #define REG_GEN3_IRQTEMP1 0x14 #define REG_GEN3_IRQTEMP2 0x18 -#define REG_GEN3_IRQTEMP3 0x1C +#define REG_GEN3_IRQTEMP3 0x1c #define REG_GEN3_THCTR 0x20 #define REG_GEN3_TEMP 0x28 #define REG_GEN3_THCODE1 0x50 @@ -38,9 +38,9 @@ #define REG_GEN4_THSFMON00 0x180 #define REG_GEN4_THSFMON01 0x184 #define REG_GEN4_THSFMON02 0x188 -#define REG_GEN4_THSFMON15 0x1BC -#define REG_GEN4_THSFMON16 0x1C0 -#define REG_GEN4_THSFMON17 0x1C4 +#define REG_GEN4_THSFMON15 0x1bc +#define REG_GEN4_THSFMON16 0x1c0 +#define REG_GEN4_THSFMON17 0x1c4 /* IRQ{STR,MSK,EN} bits */ #define IRQ_TEMP1 BIT(0) @@ -57,21 +57,27 @@ /* THSCP bits */ #define THSCP_COR_PARA_VLD (BIT(15) | BIT(14)) -#define CTEMP_MASK 0xFFF +#define CTEMP_MASK 0xfff #define MCELSIUS(temp) ((temp) * 1000) -#define GEN3_FUSE_MASK 0xFFF -#define GEN4_FUSE_MASK 0xFFF +#define GEN3_FUSE_MASK 0xfff +#define GEN4_FUSE_MASK 0xfff #define TSC_MAX_NUM 5 struct rcar_gen3_thermal_priv; +struct rcar_gen3_thermal_fuse_info { + u32 ptat[3]; + u32 thcode[3]; + u32 mask; +}; + struct rcar_thermal_info { int scale; int adj_below; int adj_above; - void (*read_fuses)(struct rcar_gen3_thermal_priv *priv); + const struct rcar_gen3_thermal_fuse_info *fuses; }; struct equation_set_coef { @@ -253,59 +259,31 @@ static irqreturn_t rcar_gen3_thermal_irq(int irq, void *data) return IRQ_HANDLED; } -static void rcar_gen3_thermal_read_fuses_gen3(struct rcar_gen3_thermal_priv *priv) +static void rcar_gen3_thermal_fetch_fuses(struct rcar_gen3_thermal_priv *priv) { - unsigned int i; + const struct rcar_gen3_thermal_fuse_info *fuses = priv->info->fuses; /* * Set the pseudo calibration points with fused values. * PTAT is shared between all TSCs but only fused for the first * TSC while THCODEs are fused for each TSC. */ - priv->ptat[0] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT1) & - GEN3_FUSE_MASK; - priv->ptat[1] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT2) & - GEN3_FUSE_MASK; - priv->ptat[2] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_PTAT3) & - GEN3_FUSE_MASK; - - for (i = 0; i < priv->num_tscs; i++) { + priv->ptat[0] = rcar_gen3_thermal_read(priv->tscs[0], fuses->ptat[0]) + & fuses->mask; + priv->ptat[1] = rcar_gen3_thermal_read(priv->tscs[0], fuses->ptat[1]) + & fuses->mask; + priv->ptat[2] = rcar_gen3_thermal_read(priv->tscs[0], fuses->ptat[2]) + & fuses->mask; + + for (unsigned int i = 0; i < priv->num_tscs; i++) { struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i]; - tsc->thcode[0] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE1) & - GEN3_FUSE_MASK; - tsc->thcode[1] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE2) & - GEN3_FUSE_MASK; - tsc->thcode[2] = rcar_gen3_thermal_read(tsc, REG_GEN3_THCODE3) & - GEN3_FUSE_MASK; - } -} - -static void rcar_gen3_thermal_read_fuses_gen4(struct rcar_gen3_thermal_priv *priv) -{ - unsigned int i; - - /* - * Set the pseudo calibration points with fused values. - * PTAT is shared between all TSCs but only fused for the first - * TSC while THCODEs are fused for each TSC. - */ - priv->ptat[0] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON16) & - GEN4_FUSE_MASK; - priv->ptat[1] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON17) & - GEN4_FUSE_MASK; - priv->ptat[2] = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN4_THSFMON15) & - GEN4_FUSE_MASK; - - for (i = 0; i < priv->num_tscs; i++) { - struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i]; - - tsc->thcode[0] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON01) & - GEN4_FUSE_MASK; - tsc->thcode[1] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON02) & - GEN4_FUSE_MASK; - tsc->thcode[2] = rcar_gen3_thermal_read(tsc, REG_GEN4_THSFMON00) & - GEN4_FUSE_MASK; + tsc->thcode[0] = rcar_gen3_thermal_read(tsc, fuses->thcode[0]) + & fuses->mask; + tsc->thcode[1] = rcar_gen3_thermal_read(tsc, fuses->thcode[1]) + & fuses->mask; + tsc->thcode[2] = rcar_gen3_thermal_read(tsc, fuses->thcode[2]) + & fuses->mask; } } @@ -316,7 +294,7 @@ static bool rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv *priv) /* If fuses are not set, fallback to pseudo values. */ thscp = rcar_gen3_thermal_read(priv->tscs[0], REG_GEN3_THSCP); - if (!priv->info->read_fuses || + if (!priv->info->fuses || (thscp & THSCP_COR_PARA_VLD) != THSCP_COR_PARA_VLD) { /* Default THCODE values in case FUSEs are not set. */ static const int thcodes[TSC_MAX_NUM][3] = { @@ -342,7 +320,8 @@ static bool rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv *priv) return false; } - priv->info->read_fuses(priv); + rcar_gen3_thermal_fetch_fuses(priv); + return true; } @@ -370,25 +349,37 @@ static void rcar_gen3_thermal_init(struct rcar_gen3_thermal_priv *priv, usleep_range(1000, 2000); } +static const struct rcar_gen3_thermal_fuse_info rcar_gen3_thermal_fuse_info_gen3 = { + .ptat = { REG_GEN3_PTAT1, REG_GEN3_PTAT2, REG_GEN3_PTAT3 }, + .thcode = { REG_GEN3_THCODE1, REG_GEN3_THCODE2, REG_GEN3_THCODE3 }, + .mask = GEN3_FUSE_MASK, +}; + +static const struct rcar_gen3_thermal_fuse_info rcar_gen3_thermal_fuse_info_gen4 = { + .ptat = { REG_GEN4_THSFMON16, REG_GEN4_THSFMON17, REG_GEN4_THSFMON15 }, + .thcode = { REG_GEN4_THSFMON01, REG_GEN4_THSFMON02, REG_GEN4_THSFMON00 }, + .mask = GEN4_FUSE_MASK, +}; + static const struct rcar_thermal_info rcar_m3w_thermal_info = { .scale = 157, .adj_below = -41, .adj_above = 116, - .read_fuses = rcar_gen3_thermal_read_fuses_gen3, + .fuses = &rcar_gen3_thermal_fuse_info_gen3, }; static const struct rcar_thermal_info rcar_gen3_thermal_info = { .scale = 167, .adj_below = -41, .adj_above = 126, - .read_fuses = rcar_gen3_thermal_read_fuses_gen3, + .fuses = &rcar_gen3_thermal_fuse_info_gen3, }; static const struct rcar_thermal_info rcar_gen4_thermal_info = { .scale = 167, .adj_below = -41, .adj_above = 126, - .read_fuses = rcar_gen3_thermal_read_fuses_gen4, + .fuses = &rcar_gen3_thermal_fuse_info_gen4, }; static const struct of_device_id rcar_gen3_thermal_dt_ids[] = { |