[PATCH v2 1/3] ssb: add function to return number of gpio lines
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: 2012-08-16 16:00:30
Also in:
linux-mips
Subsystem:
sonics silicon backplane driver (ssb), the rest · Maintainers:
Michael Buesch, Linus Torvalds
CC: Michael Buesch <m@bues.ch> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- drivers/ssb/embedded.c | 12 ++++++++++++ include/linux/ssb/ssb_embedded.h | 4 ++++ 2 files changed, 16 insertions(+)
diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c
index 9ef124f..078007c 100644
--- a/drivers/ssb/embedded.c
+++ b/drivers/ssb/embedded.c@@ -136,6 +136,18 @@ u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value) } EXPORT_SYMBOL(ssb_gpio_polarity); +int ssb_gpio_count(struct ssb_bus *bus) +{ + if (ssb_chipco_available(&bus->chipco)) + return SSB_GPIO_CHIPCO_LINES; + else if (ssb_extif_available(&bus->extif)) + return SSB_GPIO_EXTIF_LINES; + else + SSB_WARN_ON(1); + return 0; +} +EXPORT_SYMBOL(ssb_gpio_count); + #ifdef CONFIG_SSB_DRIVER_GIGE static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data) {
diff --git a/include/linux/ssb/ssb_embedded.h b/include/linux/ssb/ssb_embedded.h
index 8d8dedf..f1618d2 100644
--- a/include/linux/ssb/ssb_embedded.h
+++ b/include/linux/ssb/ssb_embedded.h@@ -7,6 +7,9 @@ extern int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks); +#define SSB_GPIO_EXTIF_LINES 5 +#define SSB_GPIO_CHIPCO_LINES 16 + /* Generic GPIO API */ u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask); u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value);
@@ -14,5 +17,6 @@ u32 ssb_gpio_outen(struct ssb_bus *bus, u32 mask, u32 value); u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value); u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value); u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value); +int ssb_gpio_count(struct ssb_bus *bus); #endif /* LINUX_SSB_EMBEDDED_H_ */
--
1.7.9.5