From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christopher Bostic Subject: [PATCH v5 20/23] drivers/fsi/gpio: Add tracepoints for GPIO master Date: Tue, 4 Apr 2017 21:06:04 -0500 Message-ID: <20170405020607.79939-21-cbostic@linux.vnet.ibm.com> References: <20170405020607.79939-1-cbostic@linux.vnet.ibm.com> Return-path: In-Reply-To: <20170405020607.79939-1-cbostic-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org, rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Jeremy Kerr , joel-U3u1mxZcP9KHXe+LvDLADg@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, andrew-zrmu5oMJ5Fs@public.gmane.org, alistair-Y4h6yKqj69EXC2x5gXVKYQ@public.gmane.org, benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org, Chris Bostic List-Id: devicetree@vger.kernel.org From: Jeremy Kerr Add trace points for key GPIO operations of the GPIO based FSI master. Signed-off-by: Jeremy Kerr Signed-off-by: Chris Bostic --- drivers/fsi/fsi-master-gpio.c | 9 +++++ include/trace/events/fsi_master_gpio.h | 68 ++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 include/trace/events/fsi_master_gpio.h diff --git a/drivers/fsi/fsi-master-gpio.c b/drivers/fsi/fsi-master-gpio.c index 9fedfaf..5d9e0b0 100644 --- a/drivers/fsi/fsi-master-gpio.c +++ b/drivers/fsi/fsi-master-gpio.c @@ -61,6 +61,9 @@ struct fsi_master_gpio { struct gpio_desc *gpio_mux; /* Mux control */ }; +#define CREATE_TRACE_POINTS +#include + #define to_fsi_master_gpio(m) container_of(m, struct fsi_master_gpio, master) struct fsi_gpio_msg { @@ -128,6 +131,8 @@ static void serial_in(struct fsi_master_gpio *master, struct fsi_gpio_msg *msg, msg->msg |= ~in_bit & 0x1; /* Data is negative active */ } msg->bits += num_bits; + + trace_fsi_master_gpio_in(master, num_bits, msg->msg); } static void serial_out(struct fsi_master_gpio *master, @@ -139,6 +144,8 @@ static void serial_out(struct fsi_master_gpio *master, uint64_t last_bit = ~0; int next_bit; + trace_fsi_master_gpio_out(master, cmd->bits, cmd->msg); + if (!cmd->bits) { dev_warn(master->dev, "trying to output 0 bits\n"); return; @@ -464,6 +471,8 @@ static int fsi_master_gpio_break(struct fsi_master *_master, int link) if (link != 0) return -ENODEV; + trace_fsi_master_gpio_break(master); + set_sda_output(master, 1); sda_out(master, 1); clock_toggle(master, FSI_PRE_BREAK_CLOCKS); diff --git a/include/trace/events/fsi_master_gpio.h b/include/trace/events/fsi_master_gpio.h new file mode 100644 index 0000000..11b36c1 --- /dev/null +++ b/include/trace/events/fsi_master_gpio.h @@ -0,0 +1,68 @@ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fsi_master_gpio + +#if !defined(_TRACE_FSI_MASTER_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_FSI_MASTER_GPIO_H + +#include + +TRACE_EVENT(fsi_master_gpio_in, + TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg), + TP_ARGS(master, bits, msg), + TP_STRUCT__entry( + __field(int, master_idx) + __field(int, bits) + __field(uint64_t, msg) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + __entry->bits = bits; + __entry->msg = msg & ((1ull< %0*llx[%d]", + __entry->master_idx, + (__entry->bits + 3) / 4, + __entry->msg, + __entry->bits + ) +); + +TRACE_EVENT(fsi_master_gpio_out, + TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg), + TP_ARGS(master, bits, msg), + TP_STRUCT__entry( + __field(int, master_idx) + __field(int, bits) + __field(uint64_t, msg) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + __entry->bits = bits; + __entry->msg = msg & ((1ull<master_idx, + (__entry->bits + 3) / 4, + __entry->msg, + __entry->bits + ) +); + +TRACE_EVENT(fsi_master_gpio_break, + TP_PROTO(const struct fsi_master_gpio *master), + TP_ARGS(master), + TP_STRUCT__entry( + __field(int, master_idx) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + ), + TP_printk("fsi-gpio%d ----break---", + __entry->master_idx + ) +); + +#endif /* _TRACE_FSI_MASTER_GPIO_H */ + +#include -- 1.8.2.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html