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drivers/thermal/rcar_gen3_thermal: add reading fuses for Gen4 

The registers are differently named and at different offsets, but their
functionality is the same as for Gen3.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230511192220.7523-4-wsa+renesas@sang-engineering.com
This commit is contained in:
Wolfram Sang 2023-05-11 21:22:19 +02:00 committed by Daniel Lezcano
parent a216261d24
commit edeab75b13
1 changed files with 42 additions and 2 deletions
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44
drivers/thermal/rcar_gen3_thermal.c
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@ -35,6 +35,12 @@
#define REG_GEN3_PTAT2 0x60 #define REG_GEN3_PTAT2 0x60
#define REG_GEN3_PTAT3 0x64 #define REG_GEN3_PTAT3 0x64
#define REG_GEN3_THSCP 0x68 #define REG_GEN3_THSCP 0x68
#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
/* IRQ{STR,MSK,EN} bits */ /* IRQ{STR,MSK,EN} bits */
#define IRQ_TEMP1 BIT(0) #define IRQ_TEMP1 BIT(0)
@ -55,6 +61,7 @@
#define MCELSIUS(temp) ((temp) * 1000) #define MCELSIUS(temp) ((temp) * 1000)
#define GEN3_FUSE_MASK 0xFFF #define GEN3_FUSE_MASK 0xFFF
#define GEN4_FUSE_MASK 0xFFF
#define TSC_MAX_NUM 5 #define TSC_MAX_NUM 5
@ -272,6 +279,34 @@ static void rcar_gen3_thermal_read_fuses_gen3(struct rcar_gen3_thermal_priv *pri
} }
} }
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;
}
}
static bool rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv *priv) static bool rcar_gen3_thermal_read_fuses(struct rcar_gen3_thermal_priv *priv)
{ {
unsigned int i; unsigned int i;
@ -343,6 +378,11 @@ static const struct rcar_thermal_info rcar_gen3_thermal_info = {
.read_fuses = rcar_gen3_thermal_read_fuses_gen3, .read_fuses = rcar_gen3_thermal_read_fuses_gen3,
}; };
static const struct rcar_thermal_info rcar_gen4_thermal_info = {
.ths_tj_1 = 126,
.read_fuses = rcar_gen3_thermal_read_fuses_gen4,
};
static const struct of_device_id rcar_gen3_thermal_dt_ids[] = { static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
{ {
.compatible = "renesas,r8a774a1-thermal", .compatible = "renesas,r8a774a1-thermal",
@ -382,11 +422,11 @@ static const struct of_device_id rcar_gen3_thermal_dt_ids[] = {
}, },
{ {
.compatible = "renesas,r8a779f0-thermal", .compatible = "renesas,r8a779f0-thermal",
.data = &rcar_gen3_thermal_info, .data = &rcar_gen4_thermal_info,
}, },
{ {
.compatible = "renesas,r8a779g0-thermal", .compatible = "renesas,r8a779g0-thermal",
.data = &rcar_gen3_thermal_info, .data = &rcar_gen4_thermal_info,
}, },
{}, {},
}; };