From: Denis Efremov <efremov@linux.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Lukas Wunner <lukas@wunner.de>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
Denis Efremov <efremov@linux.com>
Subject: [PATCH v2 0/4] Simplify PCIe hotplug indicator control
Date: Sun, 11 Aug 2019 22:59:40 +0300 [thread overview]
Message-ID: <20190811195944.23765-1-efremov@linux.com> (raw)
PCIe defines two optional hotplug indicators: a Power indicator and an
Attention indicator. Both are controlled by the same register, and each
can be on, off or blinking. The current interfaces
(pciehp_green_led_{on,off,blink}() and pciehp_set_attention_status()) are
non-uniform and require two register writes in many cases where we could
do one.
This patchset introduces the new function pciehp_set_indicators(). It
allows one to set two indicators with a single register write. All
calls to previous interfaces (pciehp_green_led_* and
pciehp_set_attention_status()) are replaced with a new one. Thus,
the amount of duplicated code for setting indicators is reduced.
Denis Efremov (4):
PCI: pciehp: Add pciehp_set_indicators() to jointly set LED indicators
PCI: pciehp: Switch LED indicators with a single write
PCI: pciehp: Replace pciehp_set_attention_status()
PCI: pciehp: Replace pciehp_green_led_{on,off,blink}()
drivers/pci/hotplug/pciehp.h | 30 +++++++++++--
drivers/pci/hotplug/pciehp_ctrl.c | 14 +++---
drivers/pci/hotplug/pciehp_hpc.c | 74 +++++++++++--------------------
include/uapi/linux/pci_regs.h | 2 +
4 files changed, 58 insertions(+), 62 deletions(-)
--
2.21.0
next reply other threads:[~2019-08-11 20:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-11 19:59 Denis Efremov [this message]
2019-08-11 19:59 ` [PATCH v2 1/4] PCI: pciehp: Add pciehp_set_indicators() to jointly set LED indicators Denis Efremov
2019-08-12 6:30 ` Lukas Wunner
2019-08-12 18:25 ` sathyanarayanan kuppuswamy
2019-08-12 18:49 ` sathyanarayanan kuppuswamy
2019-08-12 20:40 ` Lukas Wunner
2019-08-12 21:03 ` sathyanarayanan kuppuswamy
2019-08-12 20:03 ` Bjorn Helgaas
2019-08-11 19:59 ` [PATCH v2 2/4] PCI: pciehp: Switch LED indicators with a single write Denis Efremov
2019-08-12 18:27 ` sathyanarayanan kuppuswamy
2019-08-11 19:59 ` [PATCH v2 3/4] PCI: pciehp: Replace pciehp_set_attention_status() Denis Efremov
2019-08-12 6:32 ` Lukas Wunner
2019-08-12 18:28 ` sathyanarayanan kuppuswamy
2019-08-11 19:59 ` [PATCH v2 4/4] PCI: pciehp: Replace pciehp_green_led_{on,off,blink}() Denis Efremov
2019-08-12 18:45 ` sathyanarayanan kuppuswamy
2019-08-12 20:03 ` Bjorn Helgaas
2019-08-12 21:14 ` Denis Efremov
2019-08-12 22:12 ` Bjorn Helgaas
2019-08-12 20:02 ` [PATCH v2 0/4] Simplify PCIe hotplug indicator control Bjorn Helgaas
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