From patchwork Wed Mar 30 15:40:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phil Edworthy X-Patchwork-Id: 12796040 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D494C433FE for ; Wed, 30 Mar 2022 15:42:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348353AbiC3PoI (ORCPT ); Wed, 30 Mar 2022 11:44:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348341AbiC3PoG (ORCPT ); Wed, 30 Mar 2022 11:44:06 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5C74D33E84; Wed, 30 Mar 2022 08:42:20 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.90,223,1643641200"; d="scan'208";a="115200293" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 31 Mar 2022 00:42:19 +0900 Received: from localhost.localdomain (unknown [10.226.92.121]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 010A9400A6DE; Thu, 31 Mar 2022 00:42:17 +0900 (JST) From: Phil Edworthy To: Geert Uytterhoeven , Michael Turquette , Stephen Boyd Cc: Phil Edworthy , linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, Biju Das Subject: [PATCH v2 09/13] clk: renesas: rzg2l: Add support for RZ/V2M reset monitor reg Date: Wed, 30 Mar 2022 16:40:20 +0100 Message-Id: <20220330154024.112270-10-phil.edworthy@renesas.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220330154024.112270-1-phil.edworthy@renesas.com> References: <20220330154024.112270-1-phil.edworthy@renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org The RZ/V2M doesn't have a matching set of reset monitor regs for each reset reg like the RZ/G2L. Instead, it has a single CPG_RST_MON reg which has a single bit per module. Signed-off-by: Phil Edworthy Reviewed-by: Biju Das --- drivers/clk/renesas/rzg2l-cpg.c | 6 +++++- drivers/clk/renesas/rzg2l-cpg.h | 10 ++++++++-- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c index c357b0bfa119..220955366538 100644 --- a/drivers/clk/renesas/rzg2l-cpg.c +++ b/drivers/clk/renesas/rzg2l-cpg.c @@ -748,8 +748,12 @@ static int rzg2l_cpg_status(struct reset_controller_dev *rcdev, const struct rzg2l_cpg_info *info = priv->info; unsigned int reg = info->resets[id].off; u32 bitmask = BIT(info->resets[id].bit); + u32 monbitmask = BIT(info->resets[id].monbit); - return !(readl(priv->base + CLK_MRST_R(reg)) & bitmask); + if (info->has_clk_mon_regs) + return !(readl(priv->base + CLK_MRST_R(reg)) & bitmask); + else + return !!(readl(priv->base + CPG_RST_MON) & monbitmask); } static const struct reset_control_ops rzg2l_cpg_reset_ops = { diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h index f04671376af5..d1d08669066b 100644 --- a/drivers/clk/renesas/rzg2l-cpg.h +++ b/drivers/clk/renesas/rzg2l-cpg.h @@ -18,6 +18,7 @@ #define CPG_PL3_SSEL (0x408) #define CPG_PL6_SSEL (0x414) #define CPG_PL6_ETH_SSEL (0x418) +#define CPG_RST_MON (0x680) #define CPG_CLKSTATUS_SELSDHI0_STS BIT(28) #define CPG_CLKSTATUS_SELSDHI1_STS BIT(29) @@ -151,17 +152,22 @@ struct rzg2l_mod_clk { * * @off: register offset * @bit: reset bit + * @monbit: monitor bit in CPG_RST_MON register, -1 if none */ struct rzg2l_reset { u16 off; u8 bit; + s8 monbit; }; -#define DEF_RST(_id, _off, _bit) \ +#define DEF_RST_MON(_id, _off, _bit, _monbit) \ [_id] = { \ .off = (_off), \ - .bit = (_bit) \ + .bit = (_bit), \ + .monbit = (_monbit) \ } +#define DEF_RST(_id, _off, _bit) \ + DEF_RST_MON(_id, _off, _bit, -1) /** * struct rzg2l_cpg_info - SoC-specific CPG Description