diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/rcar_gen4_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/rcar_gen4_ptp.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/rcar_gen4_ptp.c b/drivers/net/ethernet/renesas/rcar_gen4_ptp.c index d0979abd36de..27a6f0492097 100644 --- a/drivers/net/ethernet/renesas/rcar_gen4_ptp.c +++ b/drivers/net/ethernet/renesas/rcar_gen4_ptp.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/ptp_clock_kernel.h> #include <linux/slab.h> #include "rcar_gen4_ptp.h" @@ -23,6 +24,15 @@ #define PTPGPTPTM10_REG 0x0054 #define PTPGPTPTM20_REG 0x0058 +struct rcar_gen4_ptp_private { + void __iomem *addr; + struct ptp_clock *clock; + struct ptp_clock_info info; + spinlock_t lock; /* For multiple registers access */ + s64 default_addend; + bool initialized; +}; + #define ptp_to_priv(ptp) container_of(ptp, struct rcar_gen4_ptp_private, info) static int rcar_gen4_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm) @@ -168,7 +178,8 @@ int rcar_gen4_ptp_unregister(struct rcar_gen4_ptp_private *ptp_priv) } EXPORT_SYMBOL_GPL(rcar_gen4_ptp_unregister); -struct rcar_gen4_ptp_private *rcar_gen4_ptp_alloc(struct platform_device *pdev) +struct rcar_gen4_ptp_private *rcar_gen4_ptp_alloc(struct platform_device *pdev, + void __iomem *addr) { struct rcar_gen4_ptp_private *ptp; @@ -178,10 +189,31 @@ struct rcar_gen4_ptp_private *rcar_gen4_ptp_alloc(struct platform_device *pdev) ptp->info = rcar_gen4_ptp_info; + ptp->addr = addr; + return ptp; } EXPORT_SYMBOL_GPL(rcar_gen4_ptp_alloc); +int rcar_gen4_ptp_clock_index(struct rcar_gen4_ptp_private *priv) +{ + if (!priv->initialized) + return -1; + + return ptp_clock_index(priv->clock); +} +EXPORT_SYMBOL_GPL(rcar_gen4_ptp_clock_index); + +void rcar_gen4_ptp_gettime64(struct rcar_gen4_ptp_private *priv, + struct timespec64 *ts) +{ + if (!priv->initialized) + return; + + priv->info.gettime64(&priv->info, ts); +} +EXPORT_SYMBOL_GPL(rcar_gen4_ptp_gettime64); + MODULE_AUTHOR("Yoshihiro Shimoda"); MODULE_DESCRIPTION("Renesas R-Car Gen4 gPTP driver"); MODULE_LICENSE("GPL"); |