From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 176F54778E; Mon, 1 Apr 2024 16:09:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711987787; cv=none; b=CswBc1QnYKvYlnG+brIx1rpq0AObaoLKf9LOhTmBINYw2GiC6b9766EKWQ6fkMotG3CNxE5djBFK0OHuKfmtze1jqpm3OJCgq6F3L/ShjUH7SRpi6FQ2jd90b/jxZVGvDR2yHqOlWAnAHVhFXOASisIBHkhzc/GLXn0zIMcjkio= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711987787; c=relaxed/simple; bh=JKJnSumkDFDy/aGA8c/iMFzXcKyB/2vy85UGfC+IGUM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IKwlV2nIjBePg9decb7BtEWIcDqkN4ZhcLB3u4m9FHNuX05Hj3p2fbmpiUpZTbXIDb4DN06m8BEiHqxzVAyLh1EF7KO+fjPAUkmQvGiXn/9rT+C3/cCpmD2q2Zp6kanLmxekZqWEnAlfHYDcWXffMsrzhOR4e7KclpbBxwea+ks= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iS538/PB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iS538/PB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7FF4AC43390; Mon, 1 Apr 2024 16:09:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1711987787; bh=JKJnSumkDFDy/aGA8c/iMFzXcKyB/2vy85UGfC+IGUM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iS538/PBPFjhvbFn2fdK3AIwvzxUzAjk0DO/wO+WInYf41MOP8/oAkHqSpOsbLReN eTFQTnKrbOLhOwDS70rpDYrDY7HIQTT/YZta/cSEo1sWJr2ikzLNJpv7OSHVazv+8Z 8Zyp2GcCWmpHfWQmrAyaSi1Q89wkyIZXmMtOhBso= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Minas Harutyunyan Subject: [PATCH 6.8 362/399] usb: dwc2: host: Fix hibernation flow Date: Mon, 1 Apr 2024 17:45:28 +0200 Message-ID: <20240401152559.973316281@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240401152549.131030308@linuxfoundation.org> References: <20240401152549.131030308@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Minas Harutyunyan commit 3c7b9856a82227db01a20171d2e24c7ce305d59b upstream. Added to backup/restore registers HFLBADDR, HCCHARi, HCSPLTi, HCTSIZi, HCDMAi and HCDMABi. Fixes: 58e52ff6a6c3 ("usb: dwc2: Move register save and restore functions") Fixes: d17ee77b3044 ("usb: dwc2: add controller hibernation support") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/c2d10ee6098b9b009a8e94191e046004747d3bdd.1708945444.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/core.h | 12 ++++++++++++ drivers/usb/dwc2/hcd.c | 18 ++++++++++++++++-- 2 files changed, 28 insertions(+), 2 deletions(-) --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -729,8 +729,14 @@ struct dwc2_dregs_backup { * struct dwc2_hregs_backup - Holds host registers state before * entering partial power down * @hcfg: Backup of HCFG register + * @hflbaddr: Backup of HFLBADDR register * @haintmsk: Backup of HAINTMSK register + * @hcchar: Backup of HCCHAR register + * @hcsplt: Backup of HCSPLT register * @hcintmsk: Backup of HCINTMSK register + * @hctsiz: Backup of HCTSIZ register + * @hdma: Backup of HCDMA register + * @hcdmab: Backup of HCDMAB register * @hprt0: Backup of HPTR0 register * @hfir: Backup of HFIR register * @hptxfsiz: Backup of HPTXFSIZ register @@ -738,8 +744,14 @@ struct dwc2_dregs_backup { */ struct dwc2_hregs_backup { u32 hcfg; + u32 hflbaddr; u32 haintmsk; + u32 hcchar[MAX_EPS_CHANNELS]; + u32 hcsplt[MAX_EPS_CHANNELS]; u32 hcintmsk[MAX_EPS_CHANNELS]; + u32 hctsiz[MAX_EPS_CHANNELS]; + u32 hcidma[MAX_EPS_CHANNELS]; + u32 hcidmab[MAX_EPS_CHANNELS]; u32 hprt0; u32 hfir; u32 hptxfsiz; --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -5406,9 +5406,16 @@ int dwc2_backup_host_registers(struct dw /* Backup Host regs */ hr = &hsotg->hr_backup; hr->hcfg = dwc2_readl(hsotg, HCFG); + hr->hflbaddr = dwc2_readl(hsotg, HFLBADDR); hr->haintmsk = dwc2_readl(hsotg, HAINTMSK); - for (i = 0; i < hsotg->params.host_channels; ++i) + for (i = 0; i < hsotg->params.host_channels; ++i) { + hr->hcchar[i] = dwc2_readl(hsotg, HCCHAR(i)); + hr->hcsplt[i] = dwc2_readl(hsotg, HCSPLT(i)); hr->hcintmsk[i] = dwc2_readl(hsotg, HCINTMSK(i)); + hr->hctsiz[i] = dwc2_readl(hsotg, HCTSIZ(i)); + hr->hcidma[i] = dwc2_readl(hsotg, HCDMA(i)); + hr->hcidmab[i] = dwc2_readl(hsotg, HCDMAB(i)); + } hr->hprt0 = dwc2_read_hprt0(hsotg); hr->hfir = dwc2_readl(hsotg, HFIR); @@ -5442,10 +5449,17 @@ int dwc2_restore_host_registers(struct d hr->valid = false; dwc2_writel(hsotg, hr->hcfg, HCFG); + dwc2_writel(hsotg, hr->hflbaddr, HFLBADDR); dwc2_writel(hsotg, hr->haintmsk, HAINTMSK); - for (i = 0; i < hsotg->params.host_channels; ++i) + for (i = 0; i < hsotg->params.host_channels; ++i) { + dwc2_writel(hsotg, hr->hcchar[i], HCCHAR(i)); + dwc2_writel(hsotg, hr->hcsplt[i], HCSPLT(i)); dwc2_writel(hsotg, hr->hcintmsk[i], HCINTMSK(i)); + dwc2_writel(hsotg, hr->hctsiz[i], HCTSIZ(i)); + dwc2_writel(hsotg, hr->hcidma[i], HCDMA(i)); + dwc2_writel(hsotg, hr->hcidmab[i], HCDMAB(i)); + } dwc2_writel(hsotg, hr->hprt0, HPRT0); dwc2_writel(hsotg, hr->hfir, HFIR);