From patchwork Tue Sep 22 17:22:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 11792899 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 71676618 for ; Tue, 22 Sep 2020 17:23:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 538CE2311C for ; Tue, 22 Sep 2020 17:23:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600795381; bh=lhgvr2VdNEC+Qr3visSERhKQaZhdHQJEwqleu+L2xVU=; h=From:To:Cc:Subject:Date:List-ID:From; b=GLglNhwNhP8HC7FHAj/g1OG/HuaQhiVDzh+ciFOMIsUTkFxaGS53pfqbvUBFFE+MW fqVcuILLV10+mHqOBxfqcVBUPjtrazovzOlQbKULC2KUcwky8cqOO/YfABuesX6bAE R9avq7mjSnlkBdLzOeAmjJwYX0ToHfxq+DgNsSpc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726614AbgIVRXA (ORCPT ); Tue, 22 Sep 2020 13:23:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:58776 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726608AbgIVRXA (ORCPT ); Tue, 22 Sep 2020 13:23:00 -0400 Received: from localhost (p54b332c9.dip0.t-ipconnect.de [84.179.50.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 29A372084C; Tue, 22 Sep 2020 17:22:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600795379; bh=lhgvr2VdNEC+Qr3visSERhKQaZhdHQJEwqleu+L2xVU=; h=From:To:Cc:Subject:Date:From; b=PdzXZ0Xn2XUPkIwa/QiddqQzaowP363SDZhbe5+MMud3zoOH4knR9app2+ZQ+ThIM huZP+Uyg9CvyOQ+1kj7qcqXZEomD4BsAGASttzkFh5XNL3NVaxJypJjpHUfgZy127E 9g+sSXggfVrw6mSODNip/XGDxqZonZlCHbnDbZGY= From: Wolfram Sang To: linux-mmc@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Wolfram Sang Subject: [PATCH RFT] mmc: renesas_sdhi: drop local flag for tuning Date: Tue, 22 Sep 2020 19:22:53 +0200 Message-Id: <20200922172253.4458-1-wsa@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Wolfram Sang The MMC core has now a generic check if some tuning is in progress. Its protected area is a bit larger than the custom one in this driver but we concluded that this works equally well for the intended case. So, drop the local flag and switch to the generic one. Signed-off-by: Wolfram Sang Reviewed-by: Yoshihiro Shimoda Tested-by: Yoshihiro Shimoda --- I had this patch applied while working on other SDHI topics and experienced no regressions. But I'd like to give Shimoda-san and the BSP team some time for testing. We agreed on the approach already. drivers/mmc/host/renesas_sdhi.h | 1 - drivers/mmc/host/renesas_sdhi_core.c | 4 +--- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/mmc/host/renesas_sdhi.h b/drivers/mmc/host/renesas_sdhi.h index 24958de274c1..cb962c7883dc 100644 --- a/drivers/mmc/host/renesas_sdhi.h +++ b/drivers/mmc/host/renesas_sdhi.h @@ -63,7 +63,6 @@ struct renesas_sdhi { u32 scc_tappos_hs400; const u8 *adjust_hs400_calib_table; bool needs_adjust_hs400; - bool doing_tune; /* Tuning values: 1 for success, 0 for failure */ DECLARE_BITMAP(taps, BITS_PER_LONG); diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index d621a4af8e87..20e5eb63caf8 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -581,7 +581,6 @@ static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host) unsigned int taps_size = priv->tap_num * 2, min_tap_row; unsigned long *bitmap; - priv->doing_tune = false; sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_RVSREQ, 0); /* @@ -656,7 +655,6 @@ static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode) return -EINVAL; } - priv->doing_tune = true; bitmap_zero(priv->taps, priv->tap_num * 2); bitmap_zero(priv->smpcmp, priv->tap_num * 2); @@ -765,7 +763,7 @@ static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host) !(host->mmc->ios.timing == MMC_TIMING_MMC_HS400 && !use_4tap)) return false; - if (mmc_doing_retune(host->mmc) || priv->doing_tune) + if (mmc_doing_tune(host->mmc)) return false; if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &