From: Kishon Vijay Abraham I <kishon@ti.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>, <linux-omap@vger.kernel.org>,
<linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <kishon@ti.com>, <nsekhar@ti.com>
Subject: [PATCH 1/2] pci: host: pci-dra7xx: use "num-lanes" property to find phy count
Date: Wed, 6 Jan 2016 16:19:52 +0530 [thread overview]
Message-ID: <1452077393-25880-2-git-send-email-kishon@ti.com> (raw)
In-Reply-To: <1452077393-25880-1-git-send-email-kishon@ti.com>
use "num-lanes" property to find phy count instead of the number
phy-names property.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
drivers/pci/host/pci-dra7xx.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 5963adc..05bbeee 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -70,7 +70,7 @@
struct dra7xx_pcie {
void __iomem *base;
struct phy **phy;
- int phy_count;
+ int lanes;
struct device *dev;
struct pcie_port pp;
};
@@ -364,7 +364,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
int ret;
int irq;
int i;
- int phy_count;
+ u32 lanes;
struct phy **phy;
void __iomem *base;
struct resource *res;
@@ -402,17 +402,16 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
if (!base)
return -ENOMEM;
- phy_count = of_property_count_strings(np, "phy-names");
- if (phy_count < 0) {
- dev_err(dev, "unable to find the strings\n");
- return phy_count;
+ if (of_property_read_u32(np, "num-lanes", &lanes)) {
+ dev_err(dev, "Failed to parse the number of lanes\n");
+ return -EINVAL;
}
- phy = devm_kzalloc(dev, sizeof(*phy) * phy_count, GFP_KERNEL);
+ phy = devm_kzalloc(dev, sizeof(*phy) * lanes, GFP_KERNEL);
if (!phy)
return -ENOMEM;
- for (i = 0; i < phy_count; i++) {
+ for (i = 0; i < lanes; i++) {
snprintf(name, sizeof(name), "pcie-phy%d", i);
phy[i] = devm_phy_get(dev, name);
if (IS_ERR(phy[i]))
@@ -432,7 +431,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
dra7xx->base = base;
dra7xx->phy = phy;
dra7xx->dev = dev;
- dra7xx->phy_count = phy_count;
+ dra7xx->lanes = lanes;
pm_runtime_enable(dev);
ret = pm_runtime_get_sync(dev);
@@ -489,7 +488,7 @@ static int __exit dra7xx_pcie_remove(struct platform_device *pdev)
struct dra7xx_pcie *dra7xx = platform_get_drvdata(pdev);
struct pcie_port *pp = &dra7xx->pp;
struct device *dev = &pdev->dev;
- int count = dra7xx->phy_count;
+ int count = dra7xx->lanes;
if (pp->irq_domain)
irq_domain_remove(pp->irq_domain);
@@ -535,7 +534,7 @@ static int dra7xx_pcie_resume(struct device *dev)
static int dra7xx_pcie_suspend_noirq(struct device *dev)
{
struct dra7xx_pcie *dra7xx = dev_get_drvdata(dev);
- int count = dra7xx->phy_count;
+ int count = dra7xx->lanes;
while (count--) {
phy_power_off(dra7xx->phy[count]);
@@ -548,7 +547,7 @@ static int dra7xx_pcie_suspend_noirq(struct device *dev)
static int dra7xx_pcie_resume_noirq(struct device *dev)
{
struct dra7xx_pcie *dra7xx = dev_get_drvdata(dev);
- int phy_count = dra7xx->phy_count;
+ int phy_count = dra7xx->lanes;
int ret;
int i;
--
1.7.9.5
next prev parent reply other threads:[~2016-01-06 10:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-06 10:49 [PATCH 0/2] DRA72/DRA74: Add 2 lane support Kishon Vijay Abraham I
2016-01-06 10:49 ` Kishon Vijay Abraham I [this message]
2016-01-06 10:49 ` [PATCH 2/2] pci: host: pci-dra7xx: Enable x2 mode support Kishon Vijay Abraham I
2016-01-06 14:13 ` Rob Herring
2016-01-07 6:21 ` Kishon Vijay Abraham I
2016-01-07 17:41 ` [PATCH 0/2] DRA72/DRA74: Add 2 lane support Bjorn Helgaas
2016-01-07 18:13 ` Tony Lindgren
2016-01-11 8:09 ` Kishon Vijay Abraham I
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1452077393-25880-2-git-send-email-kishon@ti.com \
--to=kishon@ti.com \
--cc=bhelgaas@google.com \
--cc=devicetree@vger.kernel.org \
--cc=galak@codeaurora.org \
--cc=ijc+devicetree@hellion.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=nsekhar@ti.com \
--cc=pawel.moll@arm.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).