linux-kernel - [PATCH 9/9] radeon: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID

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Message-ID: <1371543891-11460-1-git-send-email-wangyijing@huawei.com>
Date:	Tue, 18 Jun 2013 16:24:51 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>
CC:	<linux-kernel@...r.kernel.org>, Hanjun Guo <guohanjun@...wei.com>,
	<jiang.liu@...wei.com>, Yijing Wang <wangyijing@...wei.com>,
	<linux-fbdev@...r.kernel.org>
Subject: [PATCH 9/9] radeon: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)

Pci core has been saved pm cap register offset by pdev->pm_cap in pci_pm_init()
in init path. So we can use pdev->pm_cap instead of using
pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified code.

Signed-off-by: Yijing Wang <wangyijing@...wei.com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@...com>
Cc: linux-fbdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/video/aty/radeon_pm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index 92bda58..f7091ec 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2805,7 +2805,7 @@ static void radeonfb_early_resume(void *data)
 void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep)
 {
 	/* Find PM registers in config space if any*/
-	rinfo->pm_reg = pci_find_capability(rinfo->pdev, PCI_CAP_ID_PM);
+	rinfo->pm_reg = rinfo->pdev->pm_cap;
 
 	/* Enable/Disable dynamic clocks: TODO add sysfs access */
 	if (rinfo->family == CHIP_FAMILY_RS480)
-- 
1.7.1


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