Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:33676 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751865AbZCJCHH (ORCPT ); Mon, 9 Mar 2009 22:07:07 -0400 From: "Luis R. Rodriguez" To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, ath9k-devel@lists.ath9k.org, "Luis R. Rodriguez" , Matthew Garrett , Ben Cahill , Inaky Perez-Gonzalez Subject: [PATCH 4/4] ath9k: remove dummy PCI "retry timeout" fix Date: Mon, 9 Mar 2009 22:07:04 -0400 Message-Id: <1236650824-9568-5-git-send-email-lrodriguez@atheros.com> (sfid-20090310_030717_096632_169A58B6) In-Reply-To: <1236650824-9568-1-git-send-email-lrodriguez@atheros.com> References: <1236650824-9568-1-git-send-email-lrodriguez@atheros.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Remove the PCI retry timeout code as that was just taken from ipw2100 due to historical reasons but in reality its a no-op, additionally its simply incorrect as each PCI devices has its own custom PCI configuration space on PCI config space >= 0x40. Not to mention we were trying to write 0 to a place that already has 0 on it. Cc: Matthew Garrett Cc: Ben Cahill Cc: Inaky Perez-Gonzalez Tested-by: Adel Gadllah Signed-off-by: Luis R. Rodriguez --- drivers/net/wireless/ath9k/pci.c | 18 ------------------ 1 files changed, 0 insertions(+), 18 deletions(-) diff --git a/drivers/net/wireless/ath9k/pci.c b/drivers/net/wireless/ath9k/pci.c index c1ba207..a1a9b90 100644 --- a/drivers/net/wireless/ath9k/pci.c +++ b/drivers/net/wireless/ath9k/pci.c @@ -87,7 +87,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct ath_softc *sc; struct ieee80211_hw *hw; u8 csz; - u32 val; int ret = 0; struct ath_hw *ah; @@ -134,14 +133,6 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) pci_set_master(pdev); - /* - * Disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state. - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); - ret = pci_request_region(pdev, 0, "ath9k"); if (ret) { dev_err(&pdev->dev, "PCI memory region reserve error\n"); @@ -257,21 +248,12 @@ static int ath_pci_resume(struct pci_dev *pdev) struct ieee80211_hw *hw = pci_get_drvdata(pdev); struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; - u32 val; int err; err = pci_enable_device(pdev); if (err) return err; pci_restore_state(pdev); - /* - * Suspend/Resume resets the PCI configuration space, so we have to - * re-disable the RETRY_TIMEOUT register (0x41) to keep - * PCI Tx retries from interfering with C3 CPU state - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); /* Enable LED */ ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, -- 1.6.0.6