137 lines
3.7 KiB
Diff
137 lines
3.7 KiB
Diff
Index: 6.1__mvebu__armhf/drivers/ata/Kconfig
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===================================================================
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--- 6.1__mvebu__armhf.orig/drivers/ata/Kconfig
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+++ 6.1__mvebu__armhf/drivers/ata/Kconfig
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@@ -67,6 +67,22 @@ config ATA_FORCE
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If unsure, say Y.
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+config ARCH_WANT_LIBATA_LEDS
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+ bool
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+
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+config ATA_LEDS
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+ bool "support ATA port LED triggers"
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+ depends on ARCH_WANT_LIBATA_LEDS
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+ select NEW_LEDS
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+ select LEDS_CLASS
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+ select LEDS_TRIGGERS
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+ default y
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+ help
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+ This option adds a LED trigger for each registered ATA port.
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+ It is used to drive disk activity leds connected via GPIO.
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+
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+ If unsure, say N.
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+
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config ATA_ACPI
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bool "ATA ACPI Support"
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depends on ACPI
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Index: 6.1__mvebu__armhf/drivers/ata/libata-core.c
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===================================================================
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--- 6.1__mvebu__armhf.orig/drivers/ata/libata-core.c
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+++ 6.1__mvebu__armhf/drivers/ata/libata-core.c
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@@ -663,6 +663,19 @@ u64 ata_tf_read_block(const struct ata_t
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return block;
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}
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+#ifdef CONFIG_ATA_LEDS
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+#define LIBATA_BLINK_DELAY 20 /* ms */
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+static inline void ata_led_act(struct ata_port *ap)
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+{
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+ unsigned long led_delay = LIBATA_BLINK_DELAY;
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+
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+ if (unlikely(!ap->ledtrig))
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+ return;
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+
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+ led_trigger_blink_oneshot(ap->ledtrig, &led_delay, &led_delay, 0);
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+}
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+#endif
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+
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/**
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* ata_build_rw_tf - Build ATA taskfile for given read/write request
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* @qc: Metadata associated with the taskfile to build
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@@ -4813,6 +4826,10 @@ void ata_qc_issue(struct ata_queued_cmd
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struct ata_link *link = qc->dev->link;
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u8 prot = qc->tf.protocol;
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+#ifdef CONFIG_ATA_LEDS
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+ ata_led_act(ap);
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+#endif
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+
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/* Make sure only one non-NCQ command is outstanding. The
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* check is skipped for old EH because it reuses active qc to
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* request ATAPI sense.
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@@ -5328,6 +5345,9 @@ struct ata_port *ata_port_alloc(struct a
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ap->stats.unhandled_irq = 1;
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ap->stats.idle_irq = 1;
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#endif
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+#ifdef CONFIG_ATA_LEDS
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+ ap->ledtrig = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
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+#endif
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ata_sff_port_init(ap);
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return ap;
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@@ -5363,6 +5383,12 @@ static void ata_host_release(struct kref
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kfree(ap->pmp_link);
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kfree(ap->slave_link);
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+#ifdef CONFIG_ATA_LEDS
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+ if (ap->ledtrig) {
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+ led_trigger_unregister(ap->ledtrig);
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+ kfree(ap->ledtrig);
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+ };
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+#endif
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kfree(ap);
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host->ports[i] = NULL;
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}
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@@ -5765,7 +5791,23 @@ int ata_host_register(struct ata_host *h
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host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
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host->ports[i]->local_port_no = i + 1;
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}
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+#ifdef CONFIG_ATA_LEDS
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+ for (i = 0; i < host->n_ports; i++) {
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+ if (unlikely(!host->ports[i]->ledtrig))
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+ continue;
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+ snprintf(host->ports[i]->ledtrig_name,
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+ sizeof(host->ports[i]->ledtrig_name), "ata%u",
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+ host->ports[i]->print_id);
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+
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+ host->ports[i]->ledtrig->name = host->ports[i]->ledtrig_name;
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+
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+ if (led_trigger_register(host->ports[i]->ledtrig)) {
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+ kfree(host->ports[i]->ledtrig);
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+ host->ports[i]->ledtrig = NULL;
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+ }
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+ }
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+#endif
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/* Create associated sysfs transport objects */
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for (i = 0; i < host->n_ports; i++) {
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rc = ata_tport_add(host->dev,host->ports[i]);
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Index: 6.1__mvebu__armhf/include/linux/libata.h
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===================================================================
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--- 6.1__mvebu__armhf.orig/include/linux/libata.h
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+++ 6.1__mvebu__armhf/include/linux/libata.h
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@@ -23,6 +23,9 @@
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#include <linux/cdrom.h>
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#include <linux/sched.h>
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#include <linux/async.h>
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+#ifdef CONFIG_ATA_LEDS
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+#include <linux/leds.h>
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+#endif
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/*
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* Define if arch has non-standard setup. This is a _PCI_ standard
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@@ -857,6 +860,12 @@ struct ata_port {
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#ifdef CONFIG_ATA_ACPI
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struct ata_acpi_gtm __acpi_init_gtm; /* use ata_acpi_init_gtm() */
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#endif
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+
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+#ifdef CONFIG_ATA_LEDS
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+ struct led_trigger *ledtrig;
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+ char ledtrig_name[8];
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+#endif
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+
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/* owned by EH */
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u8 sector_buf[ATA_SECT_SIZE] ____cacheline_aligned;
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};
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