From 09951ad4936948e03316fdb1fe636846f706136e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 27 May 2014 22:07:31 +0200 Subject: [PATCH] b43: PHY: allow init optimizations by tracking PHY state MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit PHY has to be often re-initialized (e.g. during band switching after PHY reset), however some operations have to be performed only once (only power reset affects them). Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 3 +++ drivers/net/wireless/b43/phy_common.c | 5 +++++ drivers/net/wireless/b43/phy_common.h | 3 +++ 3 files changed, 11 insertions(+) diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 3d67e6b08e1c..bf279170b483 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -5164,6 +5164,7 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy, static int b43_wireless_core_attach(struct b43_wldev *dev) { struct b43_wl *wl = dev->wl; + struct b43_phy *phy = &dev->phy; int err; u32 tmp; bool have_2ghz_phy = false, have_5ghz_phy = false; @@ -5181,6 +5182,8 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) goto out; } + phy->do_full_init = true; + /* Try to guess supported bands for the first init needs */ switch (dev->dev->bus_type) { #ifdef CONFIG_B43_BCMA diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c index fb0ddddde16b..08244b3b327e 100644 --- a/drivers/net/wireless/b43/phy_common.c +++ b/drivers/net/wireless/b43/phy_common.c @@ -98,11 +98,14 @@ int b43_phy_init(struct b43_wldev *dev) phy->ops->switch_analog(dev, true); b43_software_rfkill(dev, false); + err = ops->init(dev); if (err) { b43err(dev->wl, "PHY init failed\n"); goto err_block_rf; } + phy->do_full_init = false; + /* Make sure to switch hardware and firmware (SHM) to * the default channel. */ err = b43_switch_channel(dev, ops->get_default_chan(dev)); @@ -114,6 +117,7 @@ int b43_phy_init(struct b43_wldev *dev) return 0; err_phy_exit: + phy->do_full_init = true; if (ops->exit) ops->exit(dev); err_block_rf: @@ -127,6 +131,7 @@ void b43_phy_exit(struct b43_wldev *dev) const struct b43_phy_operations *ops = dev->phy.ops; b43_software_rfkill(dev, true); + dev->phy.do_full_init = true; if (ops->exit) ops->exit(dev); } diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h index 47b55855c37d..4ad6240d9ff4 100644 --- a/drivers/net/wireless/b43/phy_common.h +++ b/drivers/net/wireless/b43/phy_common.h @@ -234,6 +234,9 @@ struct b43_phy { /* Is GMODE (2 GHz mode) bit enabled? */ bool gmode; + /* After power reset full init has to be performed */ + bool do_full_init; + /* Analog Type */ u8 analog; /* B43_PHYTYPE_ */ -- 2.20.1