diff options
Diffstat (limited to 'target/linux/generic/pending-4.4/834-ledtrig-libata.patch')
| -rw-r--r-- | target/linux/generic/pending-4.4/834-ledtrig-libata.patch | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/target/linux/generic/pending-4.4/834-ledtrig-libata.patch b/target/linux/generic/pending-4.4/834-ledtrig-libata.patch deleted file mode 100644 index ad63634..0000000 --- a/target/linux/generic/pending-4.4/834-ledtrig-libata.patch +++ /dev/null @@ -1,153 +0,0 @@ -From 52cfd51cdf6a6e14d4fb270c6343abac3bac00f4 Mon Sep 17 00:00:00 2001 -From: Daniel Golle <daniel@makrotopia.org> -Date: Fri, 12 Dec 2014 13:38:33 +0100 -Subject: [PATCH] libata: add ledtrig support -To: linux-ide@vger.kernel.org, - Tejun Heo <tj@kernel.org> - -This adds a LED trigger for each ATA port indicating disk activity. - -As this is needed only on specific platforms (NAS SoCs and such), -these platforms should define ARCH_WANTS_LIBATA_LEDS if there -are boards with LED(s) intended to indicate ATA disk activity and -need the OS to take care of that. -In that way, if not selected, LED trigger support not will be -included in libata-core and both, codepaths and structures remain -untouched. - -Signed-off-by: Daniel Golle <daniel@makrotopia.org> ---- - drivers/ata/Kconfig | 16 ++++++++++++++++ - drivers/ata/libata-core.c | 41 +++++++++++++++++++++++++++++++++++++++++ - include/linux/libata.h | 9 +++++++++ - 3 files changed, 66 insertions(+) - ---- a/drivers/ata/Kconfig -+++ b/drivers/ata/Kconfig -@@ -46,6 +46,22 @@ config ATA_VERBOSE_ERROR - - If unsure, say Y. - -+config ARCH_WANT_LIBATA_LEDS -+ bool -+ -+config ATA_LEDS -+ bool "support ATA port LED triggers" -+ depends on ARCH_WANT_LIBATA_LEDS -+ select NEW_LEDS -+ select LEDS_CLASS -+ select LEDS_TRIGGERS -+ default y -+ help -+ This option adds a LED trigger for each registered ATA port. -+ It is used to drive disk activity leds connected via GPIO. -+ -+ If unsure, say N. -+ - config ATA_ACPI - bool "ATA ACPI Support" - depends on ACPI ---- a/drivers/ata/libata-core.c -+++ b/drivers/ata/libata-core.c -@@ -728,6 +728,19 @@ u64 ata_tf_read_block(struct ata_taskfil - return block; - } - -+#ifdef CONFIG_ATA_LEDS -+#define LIBATA_BLINK_DELAY 20 /* ms */ -+static inline void ata_led_act(struct ata_port *ap) -+{ -+ unsigned long led_delay = LIBATA_BLINK_DELAY; -+ -+ if (unlikely(!ap->ledtrig)) -+ return; -+ -+ led_trigger_blink_oneshot(ap->ledtrig, &led_delay, &led_delay, 0); -+} -+#endif -+ - /** - * ata_build_rw_tf - Build ATA taskfile for given read/write request - * @tf: Target ATA taskfile -@@ -4781,6 +4794,9 @@ struct ata_queued_cmd *ata_qc_new_init(s - if (tag < 0) - return NULL; - } -+#ifdef CONFIG_ATA_LEDS -+ ata_led_act(ap); -+#endif - - qc = __ata_qc_from_tag(ap, tag); - qc->tag = tag; -@@ -5678,6 +5694,9 @@ struct ata_port *ata_port_alloc(struct a - ap->stats.unhandled_irq = 1; - ap->stats.idle_irq = 1; - #endif -+#ifdef CONFIG_ATA_LEDS -+ ap->ledtrig = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); -+#endif - ata_sff_port_init(ap); - - return ap; -@@ -5699,6 +5718,12 @@ static void ata_host_release(struct devi - - kfree(ap->pmp_link); - kfree(ap->slave_link); -+#ifdef CONFIG_ATA_LEDS -+ if (ap->ledtrig) { -+ led_trigger_unregister(ap->ledtrig); -+ kfree(ap->ledtrig); -+ }; -+#endif - kfree(ap); - host->ports[i] = NULL; - } -@@ -6145,7 +6170,23 @@ int ata_host_register(struct ata_host *h - host->ports[i]->print_id = atomic_inc_return(&ata_print_id); - host->ports[i]->local_port_no = i + 1; - } -+#ifdef CONFIG_ATA_LEDS -+ for (i = 0; i < host->n_ports; i++) { -+ if (unlikely(!host->ports[i]->ledtrig)) -+ continue; - -+ snprintf(host->ports[i]->ledtrig_name, -+ sizeof(host->ports[i]->ledtrig_name), "ata%u", -+ host->ports[i]->print_id); -+ -+ host->ports[i]->ledtrig->name = host->ports[i]->ledtrig_name; -+ -+ if (led_trigger_register(host->ports[i]->ledtrig)) { -+ kfree(host->ports[i]->ledtrig); -+ host->ports[i]->ledtrig = NULL; -+ } -+ } -+#endif - /* Create associated sysfs transport objects */ - for (i = 0; i < host->n_ports; i++) { - rc = ata_tport_add(host->dev,host->ports[i]); ---- a/include/linux/libata.h -+++ b/include/linux/libata.h -@@ -38,6 +38,9 @@ - #include <linux/acpi.h> - #include <linux/cdrom.h> - #include <linux/sched.h> -+#ifdef CONFIG_ATA_LEDS -+#include <linux/leds.h> -+#endif - - /* - * Define if arch has non-standard setup. This is a _PCI_ standard -@@ -877,6 +880,12 @@ struct ata_port { - #ifdef CONFIG_ATA_ACPI - struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */ - #endif -+ -+#ifdef CONFIG_ATA_LEDS -+ struct led_trigger *ledtrig; -+ char ledtrig_name[8]; -+#endif -+ - /* owned by EH */ - u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned; - }; |