kernel: split patches folder up into backport, pending and hack folders

[openwrt/openwrt.git] / target / linux / generic / patches-3.18 / 834-ledtrig-libata.patch

diff --git a/target/linux/generic/patches-3.18/834-ledtrig-libata.patch b/target/linux/generic/patches-3.18/834-ledtrig-libata.patch
deleted file mode 100644 (file)
index d0aee1c..0000000
--- a/target/linux/generic/patches-3.18/834-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 && PCI
---- a/drivers/ata/libata-core.c
-+++ b/drivers/ata/libata-core.c
-@@ -725,6 +725,19 @@ 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
-@@ -4800,6 +4813,9 @@ static struct ata_queued_cmd *ata_qc_new
-                       break;
-               }
-       }
-+#ifdef CONFIG_ATA_LEDS
-+      ata_led_act(ap);
-+#endif
- 
-       return qc;
- }
-@@ -5710,6 +5726,9 @@ 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;
-@@ -5731,6 +5750,12 @@ 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;
-       }
-@@ -6177,7 +6202,23 @@ 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
-@@ -874,6 +877,12 @@ 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;
- };