From patchwork Wed Mar 30 18:54:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12796247 X-Patchwork-Delegate: pavel@denx.de Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id A9358C433F5 for ; Wed, 30 Mar 2022 18:55:24 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web09.2209.1648666508225964836 for ; Wed, 30 Mar 2022 11:55:23 -0700 Authentication-Results: mx.groups.io; dkim=missing; spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: prabhakar.mahadev-lad.rj@bp.renesas.com) X-IronPort-AV: E=Sophos;i="5.90,223,1643641200"; d="scan'208";a="116211112" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 31 Mar 2022 03:55:23 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 34C0040D4D0B; Thu, 31 Mar 2022 03:55:22 +0900 (JST) From: Lad Prabhakar To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das Subject: [PATCH 5.10.y-cip 20/39] mmc: renesas_sdhi: break SCC reset into own function Date: Wed, 30 Mar 2022 19:54:35 +0100 Message-Id: <20220330185454.10887-21-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220330185454.10887-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220330185454.10887-1-prabhakar.mahadev-lad.rj@bp.renesas.com> List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 30 Mar 2022 18:55:24 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/7871 From: Wolfram Sang commit 0e5870145840e91fc33cd4eca6e228b009d86705 upstream. renesas_sdhi_reset used to mainly reset the SCC but is now doing more and even more will be added. So, factor out SCC reset to have a clear distinction when we want to reset either SCC or SDHI+SCC. Reviewed-by: Yoshihiro Shimoda Tested-by: Yoshihiro Shimoda Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20210317091622.31890-3-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson Signed-off-by: Lad Prabhakar --- drivers/mmc/host/renesas_sdhi_core.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index bee27e2fe446..eaf6071ab3cc 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -557,21 +557,25 @@ static int renesas_sdhi_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_io return 0; } +static void renesas_sdhi_scc_reset(struct tmio_mmc_host *host, struct renesas_sdhi *priv) +{ + renesas_sdhi_disable_scc(host->mmc); + renesas_sdhi_reset_hs400_mode(host, priv); + priv->needs_adjust_hs400 = false; + + sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL, + ~SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN & + sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL)); +} + /* only populated for TMIO_MMC_MIN_RCAR2 */ static void renesas_sdhi_reset(struct tmio_mmc_host *host) { struct renesas_sdhi *priv = host_to_priv(host); u16 val; - if (priv->scc_ctl) { - renesas_sdhi_disable_scc(host->mmc); - renesas_sdhi_reset_hs400_mode(host, priv); - priv->needs_adjust_hs400 = false; - - sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL, - ~SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN & - sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL)); - } + if (priv->scc_ctl) + renesas_sdhi_scc_reset(host, priv); sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, TMIO_MASK_ALL_RCAR2); @@ -696,7 +700,7 @@ static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode) ret = renesas_sdhi_select_tuning(host); if (ret < 0) - renesas_sdhi_reset(host); + renesas_sdhi_scc_reset(host, priv); return ret; }