From patchwork Fri Feb 28 16:08:02 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13996717 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 49B56272938; Fri, 28 Feb 2025 16:08:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740758924; cv=none; b=VGnptGVu8cLr6SaZr4gnt7b/+9aU19ZFWUMzuOxdllKP5wGaWlZA4dSpC9EC1/eO70sL+2TVMGnfqdzOpqTT7j0boUMqzVFj6cMlF0yhQOnUc/AsQBlUggS91uaAW4O+nnaRimhuu8i4/rQme12Lz9NQjFYM9Ztlf10NP/DFieA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740758924; c=relaxed/simple; bh=4UJJqQRyHzJ174unLgvOh3fUNdKpwn0AlweFWdTco8I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=plpJt3VRWrndV/EBO00Rk99zbppcRrYMQDuKSF/1c7CieAKRm/xToWs2K1DdY36oF5vTseqza3ml6erbAHDcTuL6fBFbjdW/VsXpz1pOwGhvtoqJpp64dbriAKikddh3GS/kj5sSDf9k2SMzWfygnJiJQ7HSD6JFP99JK2wjVos= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: M58fSqAGQj6kg9IG4sfmTA== X-CSE-MsgGUID: PEhSeUI9Swy6eZcLtZW3bA== Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 01 Mar 2025 01:08:39 +0900 Received: from localhost.localdomain (unknown [10.226.92.94]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C01D9401C213; Sat, 1 Mar 2025 01:08:36 +0900 (JST) From: Biju Das To: Mark Brown Cc: Biju Das , linux-spi@vger.kernel.org, Krzysztof Kozlowski , Geert Uytterhoeven , Prabhakar Mahadev Lad , Biju Das , linux-renesas-soc@vger.kernel.org Subject: [PATCH 8/8] spi: rpc-if: Add write support for memory-mapped area Date: Fri, 28 Feb 2025 16:08:02 +0000 Message-ID: <20250228160810.171413-9-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250228160810.171413-1-biju.das.jz@bp.renesas.com> References: <20250228160810.171413-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add write support for memory-mapped area as xSPI interface require it. Signed-off-by: Biju Das --- drivers/spi/spi-rpc-if.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-rpc-if.c b/drivers/spi/spi-rpc-if.c index e0c66a24a3cb..627cffea5d5c 100644 --- a/drivers/spi/spi-rpc-if.c +++ b/drivers/spi/spi-rpc-if.c @@ -75,6 +75,19 @@ static bool rpcif_spi_mem_supports_op(struct spi_mem *mem, return true; } +static ssize_t xspi_spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc, + u64 offs, size_t len, const void *buf) +{ + struct rpcif *rpc = spi_controller_get_devdata(desc->mem->spi->controller); + + if (offs + desc->info.offset + len > U32_MAX) + return -EINVAL; + + rpcif_spi_mem_prepare(desc->mem->spi, &desc->info.op_tmpl, &offs, &len); + + return xspi_dirmap_write(rpc->dev, offs, len, buf); +} + static ssize_t rpcif_spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc, u64 offs, size_t len, void *buf) { @@ -103,7 +116,7 @@ static int rpcif_spi_mem_dirmap_create(struct spi_mem_dirmap_desc *desc) if (!rpc->dirmap) return -EOPNOTSUPP; - if (desc->info.op_tmpl.data.dir != SPI_MEM_DATA_IN) + if (!rpc->xspi && desc->info.op_tmpl.data.dir != SPI_MEM_DATA_IN) return -EOPNOTSUPP; return 0; @@ -125,6 +138,7 @@ static const struct spi_controller_mem_ops rpcif_spi_mem_ops = { .exec_op = rpcif_spi_mem_exec_op, .dirmap_create = rpcif_spi_mem_dirmap_create, .dirmap_read = rpcif_spi_mem_dirmap_read, + .dirmap_write = xspi_spi_mem_dirmap_write, }; static int rpcif_spi_probe(struct platform_device *pdev)