Thread (7 messages) 7 messages, 3 authors, 2015-01-12

Re: [PATCH] brcmfmac: avoid duplicated suspend/resume operation

From: Sergei Shtylyov <hidden>
Date: 2014-12-31 11:22:47
Also in: lkml, netdev

Hello.

On 12/31/2014 11:20 AM, Fu, Zhonghui wrote:
 From e34419970a07bfcd365f9c66bdfa552188a0cd26 Mon Sep 17 00:00:00 2001
From: Zhonghui Fu <redacted>
Date: Mon, 29 Dec 2014 21:25:31 +0800
Subject: [PATCH] brcmfmac: avoid duplicated suspend/resume operation
WiFi chip has 2 SDIO functions, and PM core will trigger
twice suspend/resume operations for one WiFi chip to do
the same things. This patch avoid this case.
Signed-off-by: Zhonghui Fu <redacted>
---
  drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |   19 +++++++++++++++++--
  1 files changed, 17 insertions(+), 2 deletions(-)
quoted hunk ↗ jump to hunk
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 3c06e93..eee7818 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -1139,11 +1139,18 @@ void brcmf_sdio_wowl_config(struct device *dev, bool enabled)
  static int brcmf_ops_sdio_suspend(struct device *dev)
  {
  	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+	struct brcmf_sdio_dev *sdiodev;
  	mmc_pm_flag_t sdio_flags;
+	struct sdio_func *func = dev_to_sdio_func(dev);

  	brcmf_dbg(SDIO, "Enter\n");

+	if (func->num == 2) {
+		return 0;
+	}
    {} not needed.

[...]
quoted hunk ↗ jump to hunk
@@ -1164,9 +1171,17 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
  static int brcmf_ops_sdio_resume(struct device *dev)
  {
  	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+	struct brcmf_sdio_dev *sdiodev;
+	struct sdio_func *func = dev_to_sdio_func(dev);

  	brcmf_dbg(SDIO, "Enter\n");
+
+	if (func->num == 2) {
+		return 0;
+	}
    Same here.

[...]

WBR, Sergei
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