From patchwork Thu Oct 3 11:14:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 832951 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F2B4C18453F; Thu, 3 Oct 2024 11:16:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=85.214.62.61 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727954173; cv=none; b=vBwG3vFJaEWtZS5b+tqqegDRRRm9M6O/fz/rSkxgN8BKlXqPI9/lrpAVGpgd2MpRhR0Z+FJV4ErKyVDm8YoEYWpvuwTI0486o+TYftNd+3ORmhJByROb0Z0KwfbXQFb7p0FZ/RdtZXCbs1lAQJRvjprAwCDolYa9a60PZmii558= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727954173; c=relaxed/simple; bh=sTE+X4+JMtjeHhZ+5YPgU76tnMdXKqpLJ5VsULGhxBE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kYIO5/eNTtNJn+5QjSaB2k/HzHfQexHxWPPmEXugYiTwQAtWulpWoJYcjucNvR6yf+popTq0o42WgTFi7OvAQDmCAKcWlf5AqnHIIm4+nQgiPcw0vQuYBwn+zee0P57GfDBSjs9M7nov3jvfqH5PVoCiHnB4IrRo3Of9FYuTeuY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de; spf=pass smtp.mailfrom=denx.de; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b=RtP/fjoW; arc=none smtp.client-ip=85.214.62.61 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=denx.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b="RtP/fjoW" Received: from tr.lan (ip-86-49-120-218.bb.vodafone.cz [86.49.120.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 4AAE988C0F; Thu, 3 Oct 2024 13:16:02 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1727954162; bh=nD3UXtAWEARL6izXGcPbvcIukyY6yNakQ8q5GLNysdA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RtP/fjoW31Rym0//S0JKEmh9cnAiw3DcYXHGxaRsjHf7qScQrDcTNTy4aKCPn3fg2 5YodJQ93Ahp10g9gDP0cO/A7/iSJn3zNRpXJKumVeulYCwGUbOVCydklZHXk9iPjoh tpnLPH9Yb6VZEIP2/R06YkSoHlRsxSBwaYzQ9W2uJYOU8SRbF2IIJW7zVo/X0FVbXY qC4+WDxXrf7ghy2ips9lSjQpar+Uz8LZPsKzVOTNEhqntuCTQtxE9gqdSHiWVK0ua+ R1XdeZfLtUVv9F2U2muTeBfYuqiaQ2iLkeN0tBD0f+/9IIqw9UQ/5jZJyNMDOrArqH q+DVYfs0SuySQ== From: Marek Vasut To: linux-wireless@vger.kernel.org Cc: Marek Vasut , =?utf-8?q?Alexis_Lothor=C3=A9?= , "David S. Miller" , Adham Abozaeid , Ajay Singh , Claudiu Beznea , Conor Dooley , Eric Dumazet , Jakub Kicinski , Kalle Valo , Krzysztof Kozlowski , Paolo Abeni , Rob Herring , devicetree@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v7 2/7] wifi: wilc1000: Clean up usage of wilc_get_chipid() Date: Thu, 3 Oct 2024 13:14:36 +0200 Message-ID: <20241003111529.41232-2-marex@denx.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241003111529.41232-1-marex@denx.de> References: <20241003111529.41232-1-marex@denx.de> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Reduce the use of wilc_get_chipid(), use cached chip ID wherever possible. Remove duplicated partial chip ID read implementations from the driver. Update wilc_get_chipid() to always read the chip ID out of the hardware and update the cached chip ID, and make it return a proper return value instead of a chipid. Call wilc_get_chipid() early to make the cached chip ID available to various sites using is_wilc1000() to access the cached chip ID. Reviewed-by: Alexis LothorĂ© Signed-off-by: Marek Vasut --- Cc: "David S. Miller" Cc: Adham Abozaeid Cc: Ajay Singh Cc: Alexis LothorĂ© Cc: Claudiu Beznea Cc: Conor Dooley Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Kalle Valo Cc: Krzysztof Kozlowski Cc: Paolo Abeni Cc: Rob Herring Cc: devicetree@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org --- V2: New patch V3: - Undo setup in wilc_wlan_init() if chip is neither wilc1000 or wilc3000 - Make wilc_get_chipid() return proper return value V4: - Drop wilc_get_chipid() from netdev.c - Add RB from Alexis V5: No change V6: - Get chipid early in probe - Drop RB - Rebase on next-20240926 V7: - Update commit message - Reinstate RB - Rebase on next-20241003 / wireless-next/main 5a4d42c1688c with v2 wifi: wilc1000: Keep slot powered on during suspend/resume --- .../net/wireless/microchip/wilc1000/netdev.c | 6 +- .../net/wireless/microchip/wilc1000/sdio.c | 17 +---- drivers/net/wireless/microchip/wilc1000/spi.c | 2 +- .../net/wireless/microchip/wilc1000/wlan.c | 74 +++++++++++-------- .../net/wireless/microchip/wilc1000/wlan.h | 2 +- 5 files changed, 52 insertions(+), 49 deletions(-) diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c index 9ecf3fb29b558..086e70d833e06 100644 --- a/drivers/net/wireless/microchip/wilc1000/netdev.c +++ b/drivers/net/wireless/microchip/wilc1000/netdev.c @@ -195,13 +195,13 @@ static int wilc_wlan_get_firmware(struct net_device *dev) { struct wilc_vif *vif = netdev_priv(dev); struct wilc *wilc = vif->wilc; - int chip_id; const struct firmware *wilc_fw; int ret; - chip_id = wilc_get_chipid(wilc, false); + if (!is_wilc1000(wilc->chipid)) + return -EINVAL; - netdev_info(dev, "ChipID [%x] loading firmware [%s]\n", chip_id, + netdev_info(dev, "WILC1000 loading firmware [%s]\n", WILC1000_FW(WILC1000_API_VER)); ret = request_firmware(&wilc_fw, WILC1000_FW(WILC1000_API_VER), diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c index d67662b6b2a1a..7bc6d788f33a7 100644 --- a/drivers/net/wireless/microchip/wilc1000/sdio.c +++ b/drivers/net/wireless/microchip/wilc1000/sdio.c @@ -182,6 +182,10 @@ static int wilc_sdio_probe(struct sdio_func *func, wilc_sdio_init(wilc, false); + ret = wilc_get_chipid(wilc); + if (ret) + goto dispose_irq; + ret = wilc_load_mac_from_nv(wilc); if (ret) { pr_err("Can not retrieve MAC address from chip\n"); @@ -667,7 +671,6 @@ static int wilc_sdio_init(struct wilc *wilc, bool resume) struct wilc_sdio *sdio_priv = wilc->bus_data; struct sdio_cmd52 cmd; int loop, ret; - u32 chipid; /** * function 0 csa enable @@ -756,18 +759,6 @@ static int wilc_sdio_init(struct wilc *wilc, bool resume) return ret; } - /** - * make sure can read back chip id correctly - **/ - if (!resume) { - ret = wilc_sdio_read_reg(wilc, WILC_CHIPID, &chipid); - if (ret) { - dev_err(&func->dev, "Fail cmd read chip id...\n"); - return ret; - } - dev_err(&func->dev, "chipid (%08x)\n", chipid); - } - sdio_priv->isinit = true; return 0; } diff --git a/drivers/net/wireless/microchip/wilc1000/spi.c b/drivers/net/wireless/microchip/wilc1000/spi.c index 05b577b1068ea..81cf82c9175ef 100644 --- a/drivers/net/wireless/microchip/wilc1000/spi.c +++ b/drivers/net/wireless/microchip/wilc1000/spi.c @@ -245,7 +245,7 @@ static int wilc_bus_probe(struct spi_device *spi) if (ret) goto power_down; - ret = wilc_validate_chipid(wilc); + ret = wilc_get_chipid(wilc); if (ret) goto power_down; diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.c b/drivers/net/wireless/microchip/wilc1000/wlan.c index 533939e71534a..1f113a55ea6aa 100644 --- a/drivers/net/wireless/microchip/wilc1000/wlan.c +++ b/drivers/net/wireless/microchip/wilc1000/wlan.c @@ -1402,9 +1402,37 @@ int wilc_send_config_pkt(struct wilc_vif *vif, u8 mode, struct wid *wids, return ret; } +int wilc_get_chipid(struct wilc *wilc) +{ + u32 chipid = 0; + u32 rfrevid = 0; + + if (wilc->chipid == 0) { + wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &chipid); + wilc->hif_func->hif_read_reg(wilc, WILC_RF_REVISION_ID, + &rfrevid); + if (!is_wilc1000(chipid)) { + wilc->chipid = 0; + return -EINVAL; + } + if (chipid == WILC_1000_BASE_ID_2A) { /* 0x1002A0 */ + if (rfrevid != 0x1) + chipid = WILC_1000_BASE_ID_2A_REV1; + } else if (chipid == WILC_1000_BASE_ID_2B) { /* 0x1002B0 */ + if (rfrevid == 0x4) + chipid = WILC_1000_BASE_ID_2B_REV1; + else if (rfrevid != 0x3) + chipid = WILC_1000_BASE_ID_2B_REV2; + } + + wilc->chipid = chipid; + } + + return 0; +} + static int init_chip(struct net_device *dev) { - u32 chipid; u32 reg; int ret = 0; struct wilc_vif *vif = netdev_priv(dev); @@ -1412,9 +1440,11 @@ static int init_chip(struct net_device *dev) acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP); - chipid = wilc_get_chipid(wilc, true); + ret = wilc_get_chipid(wilc); + if (ret) + goto release; - if ((chipid & 0xfff) != 0xa0) { + if ((wilc->chipid & 0xfff) != 0xa0) { ret = wilc->hif_func->hif_read_reg(wilc, WILC_CORTUS_RESET_MUX_SEL, ®); @@ -1445,34 +1475,6 @@ static int init_chip(struct net_device *dev) return ret; } -u32 wilc_get_chipid(struct wilc *wilc, bool update) -{ - u32 chipid = 0; - u32 rfrevid = 0; - - if (wilc->chipid == 0 || update) { - wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &chipid); - wilc->hif_func->hif_read_reg(wilc, WILC_RF_REVISION_ID, - &rfrevid); - if (!is_wilc1000(chipid)) { - wilc->chipid = 0; - return wilc->chipid; - } - if (chipid == WILC_1000_BASE_ID_2A) { /* 0x1002A0 */ - if (rfrevid != 0x1) - chipid = WILC_1000_BASE_ID_2A_REV1; - } else if (chipid == WILC_1000_BASE_ID_2B) { /* 0x1002B0 */ - if (rfrevid == 0x4) - chipid = WILC_1000_BASE_ID_2B_REV1; - else if (rfrevid != 0x3) - chipid = WILC_1000_BASE_ID_2B_REV2; - } - - wilc->chipid = chipid; - } - return wilc->chipid; -} - int wilc_load_mac_from_nv(struct wilc *wl) { int ret = -EINVAL; @@ -1535,9 +1537,19 @@ int wilc_wlan_init(struct net_device *dev) if (!wilc->hif_func->hif_is_init(wilc)) { acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY); ret = wilc->hif_func->hif_init(wilc, false); + if (!ret) + ret = wilc_get_chipid(wilc); release_bus(wilc, WILC_BUS_RELEASE_ONLY); if (ret) goto fail; + + if (!is_wilc1000(wilc->chipid)) { + netdev_err(dev, "Unsupported chipid: %x\n", wilc->chipid); + ret = -EINVAL; + goto fail; + } + + netdev_dbg(dev, "chipid (%08x)\n", wilc->chipid); } if (!wilc->vmm_table) diff --git a/drivers/net/wireless/microchip/wilc1000/wlan.h b/drivers/net/wireless/microchip/wilc1000/wlan.h index dd2fb3c2f06a2..44dce53d24916 100644 --- a/drivers/net/wireless/microchip/wilc1000/wlan.h +++ b/drivers/net/wireless/microchip/wilc1000/wlan.h @@ -443,6 +443,6 @@ void chip_wakeup(struct wilc *wilc); int wilc_send_config_pkt(struct wilc_vif *vif, u8 mode, struct wid *wids, u32 count); int wilc_wlan_init(struct net_device *dev); -u32 wilc_get_chipid(struct wilc *wilc, bool update); +int wilc_get_chipid(struct wilc *wilc); int wilc_load_mac_from_nv(struct wilc *wilc); #endif